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WO2025130842A1 - Procédé et appareil de transmission de signal de référence de liaison descendante, terminal et dispositif côté réseau - Google Patents

Procédé et appareil de transmission de signal de référence de liaison descendante, terminal et dispositif côté réseau Download PDF

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Publication number
WO2025130842A1
WO2025130842A1 PCT/CN2024/139803 CN2024139803W WO2025130842A1 WO 2025130842 A1 WO2025130842 A1 WO 2025130842A1 CN 2024139803 W CN2024139803 W CN 2024139803W WO 2025130842 A1 WO2025130842 A1 WO 2025130842A1
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WIPO (PCT)
Prior art keywords
hop
downlink reference
reference signal
channel state
terminal
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PCT/CN2024/139803
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English (en)
Chinese (zh)
Inventor
司晔
宋扬
塔玛拉卡拉盖施
吴昊
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Publication of WO2025130842A1 publication Critical patent/WO2025130842A1/fr
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Definitions

  • the present application belongs to the field of wireless communication technology, and specifically relates to a downlink reference signal transmission method, device, terminal and network side equipment.
  • UE User Equipment
  • CSI Channel State Information
  • the embodiments of the present application provide a downlink reference signal transmission method, apparatus, terminal and network-side equipment, which can solve the problem of how a terminal processes a CSI-RS with a large bandwidth.
  • a downlink reference signal transmission method which is performed by a terminal, and the method includes:
  • the terminal receives a downlink reference signal sent by a network side device through frequency hopping transmission;
  • the terminal processes downlink reference signals of multiple hops in the frequency hopping transmission to obtain a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result;
  • the terminal reports a channel state information report to the network side device, where the channel state information report includes the channel state information measurement result of the joint processing and/or the channel state information measurement result of the non-joint processing.
  • a downlink reference signal transmission method which is performed by a network side device, and the method includes:
  • the network side device sends a downlink reference signal to the terminal through frequency hopping transmission
  • the network side device receives a channel state information report reported by the terminal, wherein the channel state information report includes a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result obtained after the terminal processes the downlink reference signals of multiple hops in the frequency hopping transmission.
  • a downlink reference signal transmission device including:
  • a first receiving module configured to receive a downlink reference signal sent by a network side device through frequency hopping transmission
  • a processing module used to process the downlink reference signals of multiple hops in the frequency hopping transmission to obtain a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result;
  • the reporting module is used to report a channel state information report to the network side device, wherein the channel state information report includes the channel state information measurement result of the joint processing and/or the channel state information measurement result of the non-joint processing.
  • a downlink reference signal transmission device including:
  • a sending module used for sending a downlink reference signal to a terminal through frequency hopping transmission
  • the second receiving module is used to receive a channel state information report reported by the terminal, wherein the channel state information report includes a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result obtained after the terminal processes the downlink reference signals of multiple hops in the frequency hopping transmission.
  • a terminal comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.
  • a terminal including a processor and a communication interface, wherein:
  • the communication interface is used to receive a downlink reference signal sent by a network side device through frequency hopping transmission;
  • the processor is used to process the downlink reference signals of multiple hops in the frequency hopping transmission to obtain a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result;
  • the communication interface is used to report a channel state information report to the network side device, wherein the channel state information report includes the channel state information measurement result of the joint processing and/or the channel state information measurement result of the non-joint processing.
  • a network side device which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.
  • a network side device including a processor and a communication interface, wherein the communication interface is used to:
  • the channel state information report includes a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result obtained after the terminal processes downlink reference signals of multiple hops in the frequency hopping transmission.
  • a readable storage medium on which a program or instruction is stored.
  • the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.
  • a wireless communication system including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect, and the network side device can be used to execute the steps of the method described in the second aspect.
  • a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect, or to implement the method described in the second aspect.
  • a computer program/program product is provided, wherein the computer program/program product is stored in a storage medium, and the program/program product is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.
  • a downlink reference signal sent by a network side device through frequency hopping transmission is received by a terminal, and the downlink reference signals of multiple hops in the frequency hopping transmission are processed to obtain a channel state information measurement result of joint processing and/or a channel state information measurement result of non-joint processing, and then a channel state information report is reported to the network side device, and the channel state information report includes the channel state information measurement result of joint processing and/or the channel state information measurement result of non-joint processing, so that the terminal can process a downlink reference signal with a large bandwidth, and the channel state information report overhead is small.
  • FIG1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied;
  • FIG2 is a schematic diagram of a flow chart of a method for transmitting a downlink reference signal according to an embodiment of the present application
  • FIG3 is a schematic diagram of multiple hop configurations of a CSI-RS in one CSI-RS resource provided by an embodiment of the present application;
  • FIG4 is a schematic diagram of a Non-wrapped staircase pattern provided in an embodiment of the present application.
  • FIG5 is a schematic diagram of a Wrapped staircase pattern provided in an embodiment of the present application.
  • FIG6 is a schematic diagram of a staggered pattern provided in an embodiment of the present application.
  • FIG7 is a second flow chart of a method for transmitting a downlink reference signal according to an embodiment of the present application.
  • FIG8 is a third flow chart of a method for transmitting a downlink reference signal according to an embodiment of the present application.
  • FIG9 is a schematic diagram of a structure of a downlink reference signal transmission device according to an embodiment of the present application.
  • FIG10 is a second schematic diagram of the structure of the downlink reference signal transmission device provided in an embodiment of the present application.
  • FIG11 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • FIG. 12 is a schematic diagram of the hardware structure of a terminal provided in an embodiment of the present application.
  • FIG. 13 is a schematic diagram of the hardware structure of the network side device provided in an embodiment of the present application.
  • first, second, etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by “first” and “second” are generally of one type, and the number of objects is not limited, for example, the first object can be one or more.
  • “or” in the present application represents at least one of the connected objects.
  • “A or B” covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B.
  • the character "/" generally indicates that the objects associated with each other are in an "or” relationship.
  • indication in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication).
  • a direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication;
  • an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • NR New Radio
  • 6G 6th Generation
  • FIG1 shows a block diagram of a wireless communication system applicable to the embodiment of the present application.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), a flight vehicle (flight vehicle), a vehicle user equipment (VUE), a shipborne equipment, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC
  • Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc.
  • the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.
  • the network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit.
  • the access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AP) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.
  • WLAN wireless Local Area Network
  • AP Access Point
  • WiFi wireless Fidelity
  • the base station can be called Node B (Node B, NB), Evolved Node B (Evolved Node B, eNB), the next generation Node B (the next generation Node B, gNB), New Radio Node B (New Radio Node B, NR Node B), access point, Relay Base Station (Relay Base Station, RBS), Serving Base Station (Serving Base Station, SBS), Base Transceiver Station (Base Transceiver Station, BTS), radio base station, radio transceiver, base
  • the base station is not limited to specific technical terms as long as the same technical effect is achieved. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.
  • FIG. 2 is a flowchart of a method for transmitting a downlink reference signal according to an embodiment of the present application. The method is applied to a terminal. As shown in FIG. 2 , the method includes steps 201 to 203:
  • Step 201 The terminal receives a downlink reference signal sent by a network-side device via frequency hopping transmission.
  • the network side device sends a downlink reference signal through multiple hops in frequency hopping transmission.
  • the downlink reference signal is used to measure channel state information (CSI).
  • the downlink reference signal may include but is not limited to a channel state information reference signal (CSI-RS).
  • Step 202 The terminal processes downlink reference signals of multiple hops in the frequency hopping transmission to obtain a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result.
  • the channel state information measurement result of joint processing refers to the channel state information measurement result obtained by jointly processing multiple hops.
  • the channel state information measurement result of non-joint processing refers to the channel state information measurement result of each hop.
  • the implementation method of joint processing may include: multiple hops form an equivalent large bandwidth, and the terminal obtains the CSI measurement result based on the CSI-RS of the equivalent large bandwidth.
  • the terminal can obtain wideband CSI based on the equivalent large bandwidth; or, the terminal can obtain narrowband CSI after frequency domain compression (such as enhanced type 2 (eType2) codebook feedback) based on the equivalent large bandwidth.
  • eType2 enhanced type 2
  • Step 203 The terminal reports a channel state information report to the network side device, where the channel state information report includes the channel state information measurement result of the joint processing and/or the channel state information measurement result of the non-joint processing.
  • a downlink reference signal sent by a network side device through frequency hopping transmission is received by a terminal, and the downlink reference signals of multiple hops in the frequency hopping transmission are processed to obtain a channel state information measurement result of joint processing and/or a channel state information measurement result of non-joint processing, and then a channel state information report is reported to the network side device, and the channel state information report includes the channel state information measurement result of joint processing and/or the channel state information measurement result of non-joint processing, so that the terminal can process a downlink reference signal with a large bandwidth, and the channel state information report overhead is small.
  • multiple hops in the frequency hopping transmission are defined in the same downlink reference signal resource.
  • the network side device sends the CSI-RS through multiple hops in frequency hopping transmission.
  • the terminal receives the CSI-RS sent by the network side device in a frequency hopping manner, wherein the multiple hops of the CSI-RS are configured in one CSI-RS resource.
  • FIG3 is a schematic diagram of multiple hops of the CSI-RS configured in one CSI-RS resource provided in an embodiment of the present application.
  • the embodiment of the present application introduces a CSI-RS frequency hopping method for a terminal to process a large bandwidth CSI-RS.
  • the terminal processes the CSI-RS by frequency hopping, performs CSI frequency domain joint compression on the CSI-RS of multiple hops, and obtains a CSI report with low overhead.
  • the hop pattern of the frequency hopping transmission includes at least one of the following types:
  • the staircase pattern can include at least one of the following:
  • Non-wrapped staircase pattern the first hop is the hop with the lowest frequency domain position or the highest frequency domain position among all hops;
  • Figure 4 is a schematic diagram of the Non-wrapped staircase pattern provided in an embodiment of the present application.
  • FIG5 is a schematic diagram of a wrapped staircase pattern provided in an embodiment of the present application.
  • Pattern 2 staggered pattern.
  • Figure 6 is a schematic diagram of the staggered pattern provided in an embodiment of the present application.
  • the frequency hopping pattern actually adopted may be indicated by the network or agreed upon by the protocol.
  • a hop pattern of frequency hopping transmission may be determined based on at least one of the following hop parameters: frequency hopping frequency domain related parameters; frequency hopping time domain related parameters; time-frequency mapping related parameters.
  • each hop parameter is described as follows:
  • Frequency-domain related parameters of frequency hopping including at least one of the hop number, hop bandwidth, overlapping bandwidth between adjacent hops in the frequency domain, hop starting physical resource block (PRB) and total hop bandwidth.
  • PRB physical resource block
  • the value of the hop number is N, where N is a positive integer
  • the hop bandwidths of the multiple hops in the frequency hopping transmission are the same, or the hop bandwidths of the multiple hops may be different.
  • the bandwidth of the hop with the lowest frequency domain position and/or the highest frequency domain position is different from the bandwidths of the other hops, while the bandwidths of the other hops are the same.
  • the same hop bandwidth of the multiple hops/the hop bandwidth of the first hop may reuse the ‘nrofRBs’ in the CSI-RS resource parameter.
  • the overlapping bandwidth between adjacent hops in the frequency domain, or the overlapping bandwidth between adjacent hops in the frequency domain may be different.
  • the overlapping bandwidth between the hop with the highest frequency domain position and the adjacent hop, and/or the overlapping bandwidth between the hop with the lowest frequency domain position and the adjacent hop is different from the other overlapping bandwidths, while the other overlapping bandwidths are the same.
  • the overlapping bandwidth can be configured to 0.
  • the total hop bandwidth represents the total bandwidth of multiple hop frequency hopping in the frequency hopping transmission.
  • the total hop bandwidth does not exceed the bandwidth of the partial bandwidth (Bandwidth Part, BWP) or the bandwidth of the 'virtual BWP'.
  • the total hop bandwidth can reuse the 'nrofRBs' in the CSI-RS resource parameter.
  • the hop start PRB is a PRB offset relative to a frequency domain reference point, where the frequency domain reference point can be at least one of reference point A (point A), BWP starting point, a separately defined frequency hopping reference point (frequency hopping point A), a CSI-RS resource frequency domain starting point, or other defined reference points.
  • the frequency domain reference point can be at least one of reference point A (point A), BWP starting point, a separately defined frequency hopping reference point (frequency hopping point A), a CSI-RS resource frequency domain starting point, or other defined reference points.
  • the hop start PRB is determined based on at least one of the following:
  • the hop start PRB of each hop is configured separately;
  • the hop starting PRB of each hop is determined according to at least one of the starting PRB of the first hop in the time domain and/or the lowest hop in the frequency domain, the hop bandwidth, and the overlapping bandwidth between adjacent hops in the frequency domain. That is, each hop starting PRB can be calculated based on the starting PRB of the first hop in the time domain and/or the lowest hop in the frequency domain, combined with the hop bandwidth and the hop overlapping bandwidth.
  • the starting PRB of the first hop in the time domain and/or the lowest hop in the frequency domain can be configured by the network.
  • the starting PRB of the first hop in the time domain and/or the lowest hop in the frequency domain can reuse the ‘startingRB’ in the existing CSI-RS resource parameters.
  • the starting PRB of the hop with the lowest frequency domain position can also be called the starting PRB or offset of frequency hopping.
  • Parameters related to frequency hopping in the time domain including at least one of a starting slot offset of a hop, a first symbol of a downlink reference signal within the hop, and a period of the hop; or, including at least one of a starting slot offset of a downlink reference signal resource, N starting symbols of a downlink reference signal resource, and the number of starting symbols occupied by a hop; N is a positive integer.
  • the frequency hopping time domain related parameters can be configured in the following two time domain parameter configuration modes:
  • Parameter configuration method 1 configure the frequency hopping time domain related parameters of the hop level.
  • the frequency hopping time domain related parameters may include at least one of the starting time slot offset of the hop, the starting symbol of the downlink reference signal within the hop, and the period of the hop.
  • the start timeslot offset of the hop is determined according to one of the following methods:
  • the starting slot offset of the first hop, and the starting slot offset of subsequent hops is a relative slot offset with reference to the starting slot of the first hop.
  • the relative slot offset can be configured by the network or agreed upon by the protocol.
  • the default slot offset is 1.
  • the starting slot offset of the first hop in the time domain can reuse the ‘slot offset’ in the existing CSI-RS resource parameters.
  • the relative slot offset is a regular slot offset or an available slot offset.
  • the starting time slot offset of the hop is not limited to the time slot offset corresponding to the periodic CSI-RS, the semi-persistent CSI-RS and the aperiodic CSI-RS.
  • a trigger offset corresponding to each hop is configured; or, a trigger offset corresponding to the first hop is configured, and the positions of other hops are determined according to the offset from the first hop.
  • the starting timeslot offset of each hop is the same, which means that multiple hops are configured in one timeslot. Only intra-slot hopping is supported and only one starting timeslot offset can be configured.
  • the starting symbol of the downlink reference signal within the hop such as the starting symbol of the CSI-RS within the hop.
  • Multiple starting symbols within the hop are used to map different code division multiplexing (CDM) groups corresponding to the CSI-RS port in the time domain.
  • CDM code division multiplexing
  • the starting symbol of each hop is independently configured.
  • at least one starting symbol of each hop can be configured.
  • the period of CSI-RS resources may be reused.
  • Parameter configuration mode 2 Only configure the frequency hopping time domain related parameters at the resource level.
  • the frequency hopping time domain parameters may include at least one starting time slot offset of the downlink reference signal resource, N starting symbols of the downlink reference signal resource, and at least one of the number of starting symbols occupied by one hop; N is a positive integer.
  • the time domain position of each hop is determined according to the number of starting symbols occupied by each hop.
  • At least one starting time slot offset of a downlink reference signal resource for example, at least one starting time slot offset of a CSI-RS resource.
  • At least one starting time slot offset of the CSI-RS resource is determined according to one of the following methods:
  • Method 2 Configure the first starting slot offset, and the subsequent starting slot offsets are relative slot offsets with reference to the first starting slot.
  • the relative slot offset can be configured by the network or agreed upon by the protocol.
  • the default slot offset is 1.
  • the first starting slot offset can reuse the ‘slot offset’ in the existing CSI-RS resource parameters.
  • the relative slot offset is a regular slot offset or an available slot offset.
  • the slot offset is not limited to the slot offset corresponding to periodic CSI-RS, semi-persistent CSI-RS and aperiodic CSI-RS.
  • the CSI-RS resource may contain only one starting slot offset, indicating that only intra-slot hopping is supported and multiple hops appear within one slot; or, the transmission of multiple slots is determined based on the symbol-level offset across slots.
  • N first symbols can be in one slot or across multiple slots. Among them, one first symbol corresponds to the same time domain starting position of a group of CDM groups.
  • the index of the N starting symbols is: 0, 1, ..., N-1.
  • the N starting symbols of the CSI-RS resource may be determined by one of the following methods:
  • Each slot is independently configured with at least one first symbol, and the symbol index is relative to the starting point of the slot. Multiple slots are determined by the above starting slot offset. Optionally, the number of first symbols in different slots is the same; optionally, the position of first symbols in different slots is the same.
  • N first symbols are configured with a relative symbol offset (symbol offset) with reference to the slot starting point or the first first symbol in the starting slot of the CSI-RS resource.
  • symbol offset can cross slot boundaries.
  • the number of starting symbols occupied by a hop can be used to assist in mapping different CDM groups corresponding to the CSI-RS port in the time domain.
  • the number of starting symbols occupied by a hop can be determined by one of the following methods:
  • Method 1 The number of starting symbols occupied by a hop is configured by the network.
  • Method 2 Determine the number of first symbols occupied by a hop according to a mapping relationship (or mapping table) consisting of at least one of the number of ports, frequency domain density, CDM type (type), CDM group index, and the position of CSI-RS in the slot.
  • a mapping relationship or mapping table
  • the number of first symbols in the network configuration is 2, but according to the mapping table consisting of at least one of the number of ports, frequency domain density, CDM type, CDM group index, and the position of CSI-RS in the slot, it is determined that all ports will occupy 1 first symbol, then 1 hop occupies 1 first symbol, and the number of hops is 2.
  • the number of first symbols occupied by a hop is determined according to the number of first symbols occupied by a complete set of ports, for example, the two are equal.
  • the number of first symbols configured in the network is greater than the number of first symbols used for all port mappings at one time; or, the number of first symbols configured in the network is an integer multiple of the number of first symbols used for all port mappings at one time.
  • Method 3 Determine based on the total number of starting symbols or the number of hops. For example, the number of first symbols occupied by a hop is equal to the total number of starting symbols divided by the number of hops.
  • the number of first symbols in a CSI-RS period is insufficient to support a complete round of frequency hopping (i.e., N hops)
  • different hops may span the CSI-RS period; or, the actual number of frequency hopping is the number of hops that can be transmitted in one period, which may be less than N.
  • the number of hops in a cycle is divisible by the total number of hops N. For example, if one cycle can transmit 1 hop and the total hop is N, then a complete frequency hopping round is transmitted through N cycles; if one cycle can transmit 2 hops and the total hop is N, then a complete frequency hopping round is transmitted through N/2 cycles; if one cycle can transmit Y hops and the total hop is N, then a complete frequency hopping round is transmitted through N/Y cycles. Alternatively, if the number of first symbols occupied by a hop is equal to the number of first symbols of the CSI-RS resource, different hops are distinguished by different CSI-RS resource cycles.
  • Time-frequency mapping related parameters including at least one of the hop time domain index, the hop frequency domain index (hop frequency index) and the hop direction factor.
  • a hop time index also called a hop index or a hop time index counter, indicates the index of different hops in the time domain. For example, the first hop in the time domain has a hop index of 0, and the last hop in the time domain has a hop index of N-1.
  • the hop time domain index may be determined in one of the following ways:
  • Each hop is configured with a corresponding hop time domain index.
  • each hop is configured with a corresponding starting slot and first symbol, and associated with a corresponding hop time domain index.
  • Method 2 Determine the hop time domain index according to the time domain order of the starting slot and the first symbol of different hops. For example, the hop at the front of the time domain order has a hop time domain index of 0.
  • Method 3 Determine the hop time domain index based on the index of the N first symbols of the CSI-RS resource and the number of first symbols occupied by a hop.
  • the hop time domain index is calculated using the following formula (1):
  • X is the number of first symbols occupied by one hop.
  • the hop frequency domain index of the first hop and/or the remaining hops represents the index of the hop in the frequency domain.
  • the hop frequency domain index of each hop may be determined in one of the following ways:
  • Method 1 Configure the corresponding hop frequency domain index for all hops.
  • Method 2 The protocol specifies the hop frequency domain indexes corresponding to all hops.
  • Method 3 Determine the hop frequency domain index of the remaining hops based on the hop frequency domain index corresponding to the first hop in the time domain and the hop index.
  • the frequency hopping direction factor corresponding to the above formula (2-1) is '+'.
  • the hop frequency domain index of the remaining hop is calculated using the following formula (3-1):
  • the hop frequency domain index of each hop is the hop index of each hop, is the hop frequency domain index or hop frequency domain index offset of the first hop, N hop is the number of hops; the frequency hopping direction factor corresponding to the above formula (3-1) is '+'.
  • the hop frequency domain index or hop frequency domain index offset corresponding to the first hop may be determined by formula (4) or configured by the network.
  • the hop frequency domain index or hop frequency domain index offset of the first hop is the starting PRB of the first hop, is the hop bandwidth, is the hop overlap bandwidth.
  • the hop overlap bandwidth is 0, if the hop overlap bandwidth is 0, then
  • the hop frequency domain index corresponding to the first hop may be configured by the network, or determined according to a formula, or agreed upon by a protocol;
  • the frequency domain indexes of the remaining hops are increased or decreased by one in sequence.
  • Method 4 Determine the hop frequency domain index of each hop according to the hop frequency domain index corresponding to the first hop in the time domain and the relative frequency domain indexes of the remaining hops relative to the first hop agreed upon by the network configuration/protocol.
  • the relative frequency domain index corresponding to the first hop in the time domain is defaulted to 0.
  • the relative frequency domain index is ⁇ 0, 2, 3, 1 ⁇ , which respectively represent the relative frequency domain indexes from the first hop to the Nth hop in the time domain.
  • a starting PRB position of each hop is determined according to the hop frequency domain index.
  • the offset of the start PRB of each hop relative to the start PRB of the hop with a hop index of 0 is calculated using the following formula.
  • a hop direction factor indicates whether the frequency domain of a subsequent hop is higher or lower than that of a previous hop.
  • the hop parameters described in the embodiments of the present application may include at least one of the following: network configuration parameters; intermediate parameters generated in the process of determining the hop pattern; and parameters agreed upon by the protocol.
  • the frequency hopping transmission satisfies at least one of the following:
  • the lowest and/or highest hop boundary in the frequency domain position in the frequency hopping transmission is aligned with a specific frequency domain range boundary, wherein the specific frequency domain range includes an activated partial bandwidth (active BWP), a virtual BWP, a carrier, a hop total bandwidth boundary, or at least one of other specific frequency domain ranges.
  • active BWP activated partial bandwidth
  • virtual BWP virtual BWP
  • carrier a hop total bandwidth boundary
  • hop total bandwidth boundary or at least one of other specific frequency domain ranges.
  • the lowest and/or highest hop boundary of the frequency domain position in the frequency hopping transmission is aligned with a specific frequency domain range boundary, including at least one of the following:
  • the frequency domain position of the lowest and/or highest hop determined according to the hop bandwidth exceeds the specific frequency domain range, the resources in the hop exceeding the specific frequency domain range are not used to send a downlink reference signal;
  • the frequency domain position of the lowest and/or highest hop determined according to the hop bandwidth and the same hop overlapping bandwidth exceeds the specific frequency domain range, at least one of the starting PRB of the hop and the overlapping bandwidth of the hop adjacent to the frequency domain is adjusted to allow the overlapping bandwidth of the hop adjacent to the hop frequency to be larger than the overlapping bandwidth between other hops, so that the frequency domain position of the hop falls within the specific frequency domain range and is aligned with the specific frequency domain range boundary.
  • Each hop boundary in the frequency hopping transmission is aligned with a subband boundary.
  • each hop boundary in the frequency hopping transmission is aligned with a subband boundary, including at least one of the following:
  • the starting PRB of each hop is aligned with the starting PRB of the subband
  • the overlapping bandwidth between adjacent hops in the frequency domain is an integer multiple of the sub-band
  • the bandwidth of each hop is an integer multiple of the sub-band.
  • each hop boundary is aligned with a subband boundary, and a or b is selected, that is, only the start or end PRB is restricted to be aligned with the subband boundary;
  • each hop boundary is aligned with a subband boundary, and a, b, c, and d are selected to completely limit the hop frequency domain range to be aligned with the subband.
  • the hop boundary is aligned with the subband boundary, which can reduce the overlap between the subband and the two hops as much as possible, thereby reducing the complexity of subband CSI reporting.
  • hop parameters of different downlink reference signal resources in a resource set other hop parameters except the hop time domain position are consistent.
  • hopping parameters such as hop number, hop pattern, hop bandwidth, total hop bandwidth, hop overlapping bandwidth, etc.
  • the terminal does not expect the start time of the next hop of resource 1 to conflict with the end time of the current hop of resource 2.
  • the terminal does not expect the interval between adjacent hops in the time domain to exceed a first switching time; the first switching time is determined by at least one of a network indication, a protocol agreement, or a terminal capability.
  • the terminal does not expect the downlink reference signal within a hop to cross the time slot boundary. For example, the terminal does not expect the CSI-RS within a hop to cross the slot boundary.
  • the terminal does not expect the hop bandwidth to exceed the maximum bandwidth supported by the terminal.
  • the same port on different hops uses the same sequence during sequence mapping; that is, the same scrambling code ID, slot index, and symbol index.
  • Each hop in the frequency hopping transmission maps all downlink reference signal ports. For example, for any hop, the complete CSI-RS port must be mapped.
  • the first parameter in the hop parameter is carried by at least one of the following messages:
  • MAC Media Access Control
  • CE Control Element
  • DCI Downlink control information
  • the second parameter in the hop parameter is configured by high-level signaling and/or agreed upon by a protocol.
  • the first parameter includes a hop frequency domain index of a first hop in the frequency hopping transmission.
  • At least one of the following parameters of different hops in the frequency hopping transmission is the same (these parameters are configured according to the CSI-RS resource level (per CSI-RS resource), not according to the hop level (per hop)):
  • Downlink reference signal resource identifier for example, CSI-RS resource ID.
  • Power control offset for example, powerControlOffset or ‘powerControlOffsetSS.
  • powerControlOffset for example, powerControlOffset or ‘powerControlOffsetSS.
  • the transmit power of different hops is the same.
  • Quasi-co-site QCL parameters for example, qcl-InfoPeriodicCSI-RS.
  • Frequency domain allocation parameters within a resource block RB for example, frequencyDomainAllocation.
  • the number of downlink reference signal ports included in the hop for example, nrofPorts. That is, all CSI-RS ports included in a hop.
  • Port index included in the hop that is, each hop contains all CSI-RS ports, and ports with the same port index in different hops belong to the same port.
  • CDM Code Division Multiplexing
  • CDM group size is the number of ports contained in a CDM group.
  • CDM group index that is, CDM groups with the same CDM group index in different hops belong to the same CDM group.
  • the reception of the terminal satisfies any one of the following:
  • the terminal ignores or does not receive hops outside the active BWP range.
  • the terminal only receives hops within the active BWP range.
  • the terminal does not expect to receive hops outside the active BWP range, or the terminal does not expect frequency hopping to be configured outside the active BWP.
  • N initialRB startingRB.
  • the terminal should assume that the bandwidth of the CSI-RS resource is otherwise
  • startingRB is the starting PRB position of the hop configured by the network
  • nrofRBs is the hop bandwidth configured by the network
  • N initialRB is the initial CRB index of the hop
  • the terminal receives hops outside the active BWP range.
  • the terminal when a target condition is met, the terminal receives a hop outside the active BWP range, wherein the target condition includes at least one of the following:
  • the network configures the hop of the downlink reference signal; for example, the network configures CSI-RS frequency hopping.
  • the implementation manner in which the terminal receives a hop outside the active BWP range may include at least one of the following:
  • Method 1 The terminal ignores the restriction of the active BWP on the frequency domain range of the hop of the downlink reference signal.
  • Mode 2 The network configures the MG, and the terminal receives or measures multiple hops in the frequency hopping transmission in the MG.
  • Method 3 The network configures a virtual BWP or virtual broadband, and the terminal receives or measures multiple hops in the frequency hopping transmission within the virtual BWP.
  • the virtual BWP satisfies at least one of the following:
  • the bandwidth received or processed by the terminal in the virtual BWP does not exceed the maximum bandwidth supported by the terminal.
  • the bandwidth range of the virtual BWP includes the total hop bandwidth, or the bandwidth range of the virtual BWP is consistent with the total hop bandwidth, or the bandwidth range of the virtual BWP does not exceed the total hop bandwidth configured by the network.
  • the virtual BWP bandwidth includes the total hop bandwidth or is consistent with the total hop bandwidth range.
  • the virtual BWP bandwidth may not exceed the total hop bandwidth, and the terminal can only process hops within the virtual BWP bandwidth.
  • the terminal only processes the downlink reference signal on the virtual BWP.
  • the parameter set of the virtual BWP is the same as that of the downlink reference signal.
  • the frequency domain position reference point of the virtual BWP is the starting point of the carrier or Point A.
  • the virtual BWP can also be expressed as a ‘virtual broadband’, which is used to receive the downlink reference signal hop outside the active BWP.
  • the terminal when the terminal receives a hop outside the range of the active BWP or a network configured virtual BWP, the terminal satisfies at least one of the following:
  • the terminal does not expect the downlink reference signal configuration to include a BWP ID
  • the BWP ID included in the downlink reference signal configuration received by the terminal is used to indicate the virtual BWP.
  • the terminal does not expect the activation/deactivation message to contain the BWP identifier; or, the terminal ignores the activation/deactivation message containing the BWP identifier; or, the BWP ID in the activation/deactivation message received by the terminal is used to indicate a ‘virtual BWP’; or, a field in the activation/deactivation message received by the terminal needs to include a field indicating a ‘virtual BWP’.
  • the virtual BWP is configured in a channel state information report configuration, or in a downlink positioning reference signal configuration.
  • the terminal receives hops within a frequency domain range of the virtual BWP.
  • N initialRB startingRB.
  • the terminal should assume that the bandwidth of the CSI-RS resource is otherwise
  • startingRB is the starting PRB position of the hop configured by the network
  • nrofRBs is the hop bandwidth configured by the network
  • It is the starting point of the virtual BWP.
  • N initialRB is the initial CRB index of the hop
  • the terminal switches to the active BWP after measuring all hops in the frequency hopping transmission.
  • the terminal switches to the active BWP between adjacent hops in the time domain.
  • the second switching time is equal to twice the switching time between the frequency hopping and the active BWP.
  • the terminal processes the downlink reference signals of multiple hops in the frequency hopping transmission to obtain a channel state information measurement result of joint processing and/or a channel state information measurement result of non-joint processing; the terminal reports a channel state information report, and the channel state information report includes the channel state information measurement result of the joint processing and/or the channel state information measurement result of non-joint processing.
  • the terminal reports a single hop CSI measurement result and/or a multiple hops joint estimated CSI measurement result based on CSI-RS measurement.
  • the channel state information CSI report includes at least one of the following:
  • a first measurement result wherein the first measurement result includes: a channel state information measurement result of each of X hops in the frequency hopping transmission or a channel state information measurement result of each of all hops in the frequency hopping transmission; X is a positive integer.
  • the first measurement result such as a single-hop CSI measurement result, may be one of the following:
  • Each hop measurement result of X hops among the multiple hops; X may be determined by at least one of network configuration, protocol agreement or terminal selection. For example, X is the number of hops actually measured or processed by the terminal.
  • the terminal when the terminal reports a wideband CSI measurement result, the wideband corresponds to the hop; or, when the terminal reports a subband CSI measurement result, the subband CSI measurement result is obtained by the terminal without joint processing/compression of multiple hops.
  • First indication information where the first indication information is used to indicate that the first measurement result is a single-hop channel state information measurement result.
  • the terminal carries first indication information in the channel state information report, where the first indication information is used to indicate that the first measurement result corresponds to single-hop.
  • First frequency hopping information where the first frequency hopping information is used to indicate hop information associated with the first measurement result.
  • the terminal reports hop information associated with the first measurement result, where the hop is at least one hop actually processed by the terminal.
  • the hop information includes at least one of the following information of at least one hop: hop index; hop frequency index; hop frequency domain range.
  • a second measurement result wherein the second measurement result includes: a channel state information measurement result of Y hops jointly processed in the frequency hopping transmission or a channel state information measurement result of all hops jointly processed in the frequency hopping transmission; Y is a positive integer.
  • the second measurement result such as a CSI measurement result of multiple hops joint estimation, may be one of the following:
  • Y can be determined by at least one method selected by the network configuration, protocol agreement or terminal. For example, Y is the number of hops actually measured or processed by the terminal. When reporting, if the terminal has not processed all hops, then the terminal can only report the measurement results of the processed hops.
  • the terminal can only complete the measurement or processing of some hops, then the terminal can only report the measurement results of the processed hops.
  • the terminal reports wideband CSI measurement results, where the wideband corresponds to multiple hops; or, the terminal reports subband CSI measurement results, where the subband CSI measurement results are obtained by the terminal performing frequency domain compression on multiple hops.
  • Second indication information where the second indication information is used to indicate that the second measurement result is a channel state information measurement result of multi-hop joint processing.
  • the terminal indicates, through the second indication information in the channel state information report, that the first measurement result corresponds to multiple hop.
  • Second frequency hopping information where the second frequency hopping information is used to indicate hop information associated with the second measurement result.
  • the terminal reports hop information associated with the second measurement result, where the hop is at least one hop actually processed by the terminal.
  • the hop information includes at least one of the following information of at least one hop: hop number; hop index; hop frequency index; hop frequency domain range.
  • the terminal before reporting the channel state information report, the terminal receives a network instruction, and the network instruction reports in a single hop, multiple hop, or single hop+multiple hop manner.
  • single hop+multiple hop means that the terminal reports two measurement results at the same time, that is, reports the first measurement result and the second measurement result at the same time.
  • the hop information to be measured is indicated in the network indication, and the hop information includes at least one of the following information of at least one hop: hop number; hop index; hop frequency index; hop frequency domain range.
  • the network further flexibly indicates the hop information that needs to be measured, such as in the field indicated by the DCI or MAC CE.
  • the hop information to be measured is further indicated, indicating the hop information to be measured associated with the current aperiodic or semi-persistent CSI reporting.
  • the terminal receives reporting indication information sent by the network side device, and the reporting indication information is used to instruct the terminal to jointly process downlink reference signals of multiple hops. Further, the network side device can instruct the terminal to process a CSI-RS bandwidth and/or at least one hop index.
  • the implementation method of the terminal reporting the channel state information report to the network side device may include:
  • the terminal reports the channel state information report to the network side device based on a target manner
  • the target mode is at least one of the following:
  • Method 1 Ignore the measurement and/or reporting of the channel state information this time.
  • Mode 2 Ignore the measurement and/or reporting of all ports of the target hop.
  • All ports of the target hop are not considered. For example, the current channel state information report is ignored, or the current channel state information report is obtained based on the hop with complete ports.
  • this channel state information report includes a wideband CSI report, ignore this wideband CSI report, or report the wideband CSI report of the hop actually used.
  • this channel state information report includes subband CSI reporting, ignore this subband CSI reporting, or report the subband CSI of the hop actually used.
  • Mode 3 Consider measuring and/or reporting the ports where the target hop is not discarded.
  • the channel state information report includes at least one of the following:
  • the network is configured with 4 hops, each hop is configured with 8 ports. If 4 ports of one hop are dropped, the terminal reports the broadband or subband channel state information measurement results of the remaining 4 ports of the 4 hops.
  • the terminal performs downlink reference signal measurement and/or reports channel state information measurement results according to at least one set of subband configurations, wherein the set of subband configurations includes at least one of a subband start point, a subband end point, a subband bitmap, and a subband size.
  • the terminal measures and reports CSI in the frequency domain according to wideband or subband according to at least one group of subband configurations.
  • At least one of the starting point of the subband, the end point of the subband and the bitmap of the subband in the subband configuration is determined according to the target frequency domain range; wherein the target frequency domain range includes all hop frequency domain ranges of active BWP, virtual BWP, carrier, downlink reference signal frequency hopping and at least one item in each hop frequency domain range.
  • the first subband size can be smaller than other subband sizes to align with the first PRB of the target frequency domain range.
  • the first subband size is in is the subband size, is the starting PRB of the target frequency domain range.
  • the last subband size can be smaller than other subband sizes to align with the last PRB of the target frequency domain range.
  • the last subband size is:
  • the last subband size is in is the subband size, is the starting PRB of the target frequency domain range, The size of the target frequency domain range.
  • the size of the subband in the subband configuration is mapped according to the target bandwidth; or, the size of the subband in the subband configuration is indicated by the network side device from at least one candidate value, and the at least one candidate value is mapped according to the target bandwidth; wherein the target bandwidth includes at least one of a bandwidth consistent with the target frequency domain range, a hop bandwidth, a hop bandwidth with the smallest bandwidth, a hop bandwidth with the largest bandwidth, and a bandwidth indicated by the network side device.
  • a subband is configured for each hop.
  • the starting point, end point, and bitmap of the subband are determined according to a frequency domain range of a larger bandwidth (such as one of other target frequency domain ranges in the target frequency domain range except each hop frequency domain range), and the subband size is determined according to the hop bandwidth.
  • the subband configuration satisfies that: when there is no overlapping bandwidth between adjacent hops in the frequency domain, the terminal does not expect one subband to include multiple hops.
  • each hop is associated with or configured with a group of subband configurations, or multiple hops are associated with or configured with the same subband configuration.
  • the subband configuration can have one or more groups, specifically,
  • the subband is configured as a group, that is, the CSI is measured and reported through a group of subband configurations.
  • Subbands are configured into multiple groups, that is, each hop is configured with a group of subband configurations.
  • the starting point, end point, size, and bitmap of a subband are determined according to the frequency domain range of each CSI-RS hop.
  • the terminal reports the CSI measurement result of the subband corresponding to the frequency domain range of the hop.
  • start point, end point, size, and bitmap length of a subband are determined and consistent according to other frequency domain ranges (such as virtual BWP), but multiple sets of subband bitmap contents are configured for different hops.
  • the subband configuration is associated with a hop index.
  • the subband configuration associated with a hop can also be understood as the subband configuration being associated with a corresponding downlink reference signal resource or downlink reference signal resource set.
  • the subband configuration can be associated with a downlink reference signal resource identifier or a downlink reference signal resource set identifier.
  • the corresponding bit value of the subband where the overlap is located in the bitmap of the subband is ‘1’.
  • the jointly processed channel state information measurement result includes: at least one of a jointly processed subband channel state information (subband CSI) measurement result and a jointly processed wideband channel state information (wideband CSI) measurement result.
  • the jointly processed subband channel state information (subband CSI) measurement result is a result obtained by performing joint frequency domain compression after compensating for the phase offset between multiple hops in the frequency hopping transmission.
  • the jointly processed wideband channel state information (wideband CSI) measurement result is a wideband CSI result obtained by obtaining an equivalent wideband after compensating for the phase offset between multiple hops in the frequency hopping transmission.
  • the subband CSI measurement result may include at least one of the following:
  • N1 groups of channel state information measurement results wherein the N1 groups of channel state information measurement results include channel state information measurement results of each of the N1 hops included in the subband; N1 is a positive integer.
  • N1 groups of channel state information measurement results such as N1 groups of CSI measurement results, are associated with different hops. Further, the reported N1 groups of CSI measurement results are associated with at least one of a subband index, a hop index, a hop frequency index, and a hop frequency domain position.
  • the CSI measurement result of group N1 is obtained by at least one of the following implementation modes:
  • Method 1 N1 hops have no frequency domain overlap and obtain N groups of results.
  • N1 hops have frequency domain overlap, but the overlap bandwidth is small (for example, not exceeding a certain threshold), and N1 groups of results are obtained.
  • N1 hops have frequency domain overlap.
  • the subband also corresponds to N1 hops, and N1 groups of results are obtained.
  • Method 4 N1 hops have frequency domain overlap, and the overlap bandwidth is completely aligned with the subband, and N groups of results are reported.
  • a set of channel state information measurement results such as a set of CSI measurement results, is obtained based on the processing results of N hops. Further, associated hop information is reported in the set of CSI measurement results.
  • the hop information includes at least one of a hop index, a hop frequency index, and a hop frequency domain position.
  • a group of CSI measurement results is obtained by combining multiple hops after compensating for phase errors based on results of N hop processing.
  • the set of CSI measurement results is obtained by at least one of the following implementations:
  • Method 1 N hops have no frequency domain overlap and obtain one set of results.
  • Method 2 N hops have frequency domain overlap, and one set of results is obtained.
  • Method 3 N hops have frequency domain overlap. Except for the overlap bandwidth, this subband only corresponds to one hop, and one set of results is obtained.
  • N hops have frequency domain overlap, and the overlap bandwidth is large (for example, not less than a certain threshold), and one set of results is obtained.
  • Method 5 N hops have frequency domain overlap, and the overlap bandwidth is completely aligned with the subband, and one set of results is obtained.
  • the subband includes one set of CSI results, which are results estimated based on one hop. That is, the subband has only a small overlap with a certain hop, and the measurement result of the subband on the hop is ignored.
  • third frequency hopping information is used to indicate or characterize hop information associated with the channel state information measurement result of the sub-band.
  • the terminal reports terminal capability information to the network side device, wherein the terminal capability information includes at least one of the following:
  • Total hop bandwidth for example, the maximum CSI joint processing bandwidth
  • FIG. 7 is a second flow chart of a method for transmitting a downlink reference signal provided in an embodiment of the present application. The method is applied to a network side device. As shown in FIG. 7 , the method includes steps 701 to 702:
  • Step 701 A network-side device sends a downlink reference signal to a terminal through frequency hopping transmission.
  • the network side device sends a downlink reference signal through multiple hops in frequency hopping transmission.
  • the downlink reference signal is used to measure channel state information (Channel State Information, CSI).
  • the downlink reference signal may include a channel state information reference signal (Channel State Information Reference Signal, CSI-RS).
  • Step 702 The network side device receives a channel state information report reported by the terminal, wherein the channel state information report includes a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result obtained after the terminal processes the downlink reference signals of multiple hops in the frequency hopping transmission.
  • the jointly processed channel state information measurement result refers to a channel state information measurement result obtained by the terminal jointly processing multiple hops.
  • the non-jointly processed channel state information measurement result refers to a channel state information measurement result of each hop obtained by the terminal.
  • a network side device sends a downlink reference signal to a terminal through frequency hopping transmission
  • the terminal receives the downlink reference signal sent by the network side device through frequency hopping transmission
  • processes the downlink reference signals of multiple hops in the frequency hopping transmission obtains a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result, and then reports a channel state information report to the network side device, wherein the channel state information report includes the jointly processed channel state information measurement result and/or the non-jointly processed channel state information measurement result, so that the terminal can process a large bandwidth downlink reference signal, and the channel state information report overhead is small.
  • multiple hops in the frequency hopping transmission are defined in the same downlink reference signal resource.
  • the hop pattern of the frequency hopping transmission is determined based on at least one of the following hop parameters:
  • Frequency hopping frequency domain related parameters including at least one of the hop number, hop bandwidth, overlapping bandwidth between adjacent hops in the frequency domain, hop start physical resource block PRB and hop total bandwidth;
  • the frequency hopping time domain related parameters include at least one of the starting time slot offset of the hop, the starting symbol of the downlink reference signal within the hop, and the period of the hop, or include at least one of the starting time slot offset of the downlink reference signal resource, the N starting symbols of the downlink reference signal resource, and the number of starting symbols occupied by one hop; N is a positive integer;
  • the time-frequency mapping related parameters include at least one of a hop time domain index, a hop frequency domain index, and a hop direction factor.
  • the hop start PRB is determined based on at least one of the following:
  • the hop start PRB of each hop is configured separately;
  • the hop start PRB of each hop is determined according to the configured start PRB of the first hop in the time domain and/or the lowest hop in the frequency domain, the hop bandwidth, and the overlapping bandwidth between adjacent hops in the frequency domain.
  • the frequency hopping transmission satisfies at least one of the following:
  • the lowest and/or highest hop boundary of the frequency domain position in the frequency hopping transmission is aligned with a specific frequency domain range boundary, and the specific frequency domain range includes at least one of an active partial bandwidth active BWP, a virtual BWP, a carrier and a hop total bandwidth boundary;
  • Each hop boundary in the frequency hopping transmission is aligned with a subband boundary
  • hop parameters of different downlink reference signal resources in a resource group other hop parameters except the hop time domain position are the same;
  • the terminal does not expect the interval between adjacent hops in the time domain to exceed a first switching time; the first switching time is determined by at least one of a network indication, a protocol agreement, or a terminal capability;
  • the terminal does not expect a downlink reference signal within a hop to cross a time slot boundary
  • the terminal does not expect the hop bandwidth to exceed the maximum bandwidth supported by the terminal;
  • the same port on different hops uses the same sequence during sequence mapping
  • Each hop in the frequency hopping transmission maps all downlink reference signal ports.
  • the lowest and/or highest hop boundary of the frequency domain position in the frequency hopping transmission is aligned with a specific frequency domain range boundary, including at least one of the following:
  • the resources in the hop that exceed the specific frequency domain range are not used to send the downlink reference signal
  • At least one of the starting PRB of the hop and the overlapping bandwidth of the hop and the hop adjacent to the frequency domain is adjusted so that the frequency domain position of the hop falls within the specific frequency domain range.
  • each hop boundary in the frequency hopping transmission is aligned with a subband boundary, including at least one of the following:
  • the starting PRB of each hop is aligned with the starting PRB of the subband
  • the end PRB of each hop is aligned with the end PRB of the subband
  • the overlapping bandwidth between adjacent hops in the frequency domain is an integer multiple of the sub-band
  • the bandwidth of each hop is an integer multiple of the sub-band.
  • At least one of the following parameters of different hops in the frequency hopping transmission is the same:
  • the number of downlink reference signal ports included in the hop is the number of downlink reference signal ports included in the hop.
  • the port index included in the hop is the port index included in the hop
  • CDM type Code division multiplexing CDM type
  • the first parameter in the hop parameter is carried by at least one of the following messages: a media access control MAC control element CE and downlink control information DCI;
  • the second parameter in the hop parameter is configured by high-level signaling and/or agreed upon by a protocol.
  • the channel state information report includes at least one of the following:
  • a first measurement result wherein the first measurement result includes: a channel state information measurement result of each of X hops in the frequency hopping transmission or a channel state information measurement result of each of all hops in the frequency hopping transmission;
  • X is a positive integer;
  • first indication information where the first indication information is used to indicate that the first measurement result is a single-hop channel state information measurement result
  • first frequency hopping information where the first frequency hopping information is used to indicate hop information associated with the first measurement result
  • a second measurement result wherein the second measurement result includes: a channel state information measurement result of Y hops jointly processed in the frequency hopping transmission or a channel state information measurement result of all hops jointly processed in the frequency hopping transmission; Y is a positive integer;
  • the second indication information is used to indicate that the second measurement result is a channel state information measurement result of multi-hop joint processing
  • Second frequency hopping information where the second frequency hopping information is used to indicate hop information associated with the second measurement result.
  • the sub-band channel state information measurement results are obtained based on the complete ports in all hops of the frequency hopping transmission.
  • the network side device sends reporting indication information to the terminal, where the reporting indication information is used to instruct the terminal to jointly process downlink reference signals of multiple hops.
  • the jointly processed channel state information measurement result includes: a jointly processed subband channel state information subband CSI measurement result, wherein the subband CSI measurement result is a result of frequency domain compression after compensating the phase offset between multiple hops in the frequency hopping transmission.
  • the network side device receives terminal capability information reported by the terminal, wherein the terminal capability information includes at least one of the following:
  • FIG8 is a flowchart of a method for transmitting a downlink reference signal according to an embodiment of the present application. The method is performed by a terminal and a network device in cooperation. As shown in FIG8 , the method includes steps 801 to 803:
  • Step 801 The network side device sends a downlink reference signal to the terminal through frequency hopping transmission;
  • Step 802 The terminal receives a downlink reference signal sent by a network side device through frequency hopping transmission; the terminal processes the downlink reference signals of multiple hops in the frequency hopping transmission to obtain a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result;
  • Step 803 The terminal reports a channel state information report to the network side device, where the channel state information report includes the channel state information measurement result of the joint processing and/or the channel state information measurement result of the non-joint processing; the network side device receives the channel state information report reported by the terminal.
  • a network side device sends a downlink reference signal to a terminal through frequency hopping transmission
  • the terminal receives the downlink reference signal sent by the network side device through frequency hopping transmission
  • processes the downlink reference signals of multiple hops in the frequency hopping transmission obtains a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result, and then reports a channel state information report to the network side device, wherein the channel state information report includes the jointly processed channel state information measurement result and/or the non-jointly processed channel state information measurement result, so that the terminal can process a large bandwidth downlink reference signal, and the channel state information report overhead is small.
  • the downlink reference signal transmission method provided in the embodiment of the present application may be executed by a downlink reference signal transmission device.
  • the downlink reference signal transmission method performed by the downlink reference signal transmission device is taken as an example to illustrate the downlink reference signal transmission device provided in the embodiment of the present application.
  • FIG9 is a schematic diagram of a structure of a downlink reference signal transmission device according to an embodiment of the present application. As shown in FIG9 , a downlink reference signal transmission device 900 is applied to a terminal.
  • the downlink reference signal transmission device 900 includes: a first receiving module 901, a processing module 902 and a reporting module 903, wherein:
  • the first receiving module 901 is used to receive a downlink reference signal sent by a network side device through frequency hopping transmission;
  • the processing module 902 is used to process the downlink reference signals of multiple hops in the frequency hopping transmission to obtain the channel state information measurement result of joint processing and/or the channel state information measurement result of non-joint processing;
  • the reporting module 903 is used to report a channel state information report to the network side device, where the channel state information report includes the channel state information measurement result of the joint processing and/or the channel state information measurement result of the non-joint processing.
  • the downlink reference signals of multiple hops in the frequency hopping transmission are processed to obtain a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result, and then a channel state information report is reported to the network side device, and the channel state information report includes the jointly processed channel state information measurement result and/or the non-jointly processed channel state information measurement result, so that the terminal can process a large bandwidth downlink reference signal, and the channel state information report overhead is small.
  • multiple hops in the frequency hopping transmission are defined in the same downlink reference signal resource.
  • the hop pattern of the frequency hopping transmission is determined based on at least one of the following hop parameters:
  • Frequency hopping frequency domain related parameters including at least one of the hop number, hop bandwidth, overlapping bandwidth between adjacent hops in the frequency domain, hop start physical resource block PRB and hop total bandwidth;
  • the frequency hopping time domain related parameters include at least one of the starting time slot offset of the hop, the starting symbol of the downlink reference signal within the hop, and the period of the hop, or include at least one of the starting time slot offset of the downlink reference signal resource, the N starting symbols of the downlink reference signal resource, and the number of starting symbols occupied by one hop; N is a positive integer;
  • the time-frequency mapping related parameters include at least one of a hop time domain index, a hop frequency domain index, and a hop direction factor.
  • the hop start PRB is determined based on at least one of the following:
  • the hop start PRB of each hop is configured separately;
  • the hop start PRB of each hop is determined according to the configured start PRB of the first hop in the time domain and/or the lowest hop in the frequency domain, the hop bandwidth, and the overlapping bandwidth between adjacent hops in the frequency domain.
  • the frequency hopping transmission satisfies at least one of the following:
  • the lowest and/or highest hop boundary of the frequency domain position in the frequency hopping transmission is aligned with a specific frequency domain range boundary, and the specific frequency domain range includes at least one of an active partial bandwidth active BWP, a virtual BWP, a carrier and a hop total bandwidth boundary;
  • Each hop boundary in the frequency hopping transmission is aligned with a subband boundary
  • hop parameters of different downlink reference signal resources in a resource group other hop parameters except the hop time domain position are the same;
  • the terminal does not expect the interval between adjacent hops in the time domain to exceed a first switching time; the first switching time is determined by at least one of a network indication, a protocol agreement, or a terminal capability;
  • the terminal does not expect a downlink reference signal within a hop to cross a time slot boundary
  • the terminal does not expect the hop bandwidth to exceed the maximum bandwidth supported by the terminal;
  • the same port on different hops uses the same sequence during sequence mapping
  • Each hop in the frequency hopping transmission maps all downlink reference signal ports.
  • the lowest and/or highest hop boundary of the frequency domain position in the frequency hopping transmission is aligned with a specific frequency domain range boundary, including at least one of the following:
  • the resources in the hop that exceed the specific frequency domain range are not used to send the downlink reference signal
  • At least one of the starting PRB of the hop and the overlapping bandwidth of the hop and the hop adjacent to the frequency domain is adjusted so that the frequency domain position of the hop falls within the specific frequency domain range.
  • each hop boundary in the frequency hopping transmission is aligned with a subband boundary, including at least one of the following:
  • the starting PRB of each hop is aligned with the starting PRB of the subband
  • the end PRB of each hop is aligned with the end PRB of the subband
  • the overlapping bandwidth between adjacent hops in the frequency domain is an integer multiple of the sub-band
  • the bandwidth of each hop is an integer multiple of the sub-band.
  • At least one of the following parameters of different hops in the frequency hopping transmission is the same:
  • the number of downlink reference signal ports included in the hop is the number of downlink reference signal ports included in the hop.
  • the port index included in the hop is the port index included in the hop
  • CDM type Code division multiplexing CDM type
  • the first parameter in the hop parameter is carried by at least one of the following messages: a media access control MAC control element CE and downlink control information DCI;
  • the second parameter in the hop parameter is configured by high-level signaling and/or agreed upon by a protocol.
  • the terminal in the process of the terminal receiving a downlink reference signal sent by a network side device through frequency hopping transmission, the terminal satisfies any one of the following:
  • the terminal ignores or does not receive hops outside the active BWP range
  • the terminal receives hops outside the active BWP range.
  • the first receiving module 901 is configured to receive a hop outside the active BWP range when a target condition is met, wherein the target condition includes at least one of the following:
  • a network configuration enabling condition used to enable the terminal to allow receiving hops outside the active BWP range
  • the network configures the hop of the downlink reference signal
  • the first receiving module 901 is configured to perform at least one of the following:
  • the terminal ignores the restriction of the frequency domain range of the hop of the downlink reference signal by the active BWP;
  • the terminal receives the hop in the frequency hopping transmission in a measurement interval MG;
  • the terminal receives the hop in the frequency hopping transmission within the virtual BWP.
  • the virtual BWP satisfies at least one of the following:
  • the bandwidth of the virtual BWP is greater than the maximum bandwidth supported by the terminal
  • the bandwidth received or processed by the terminal in the virtual BWP does not exceed the maximum bandwidth supported by the terminal
  • the bandwidth of the virtual BWP does not exceed the total hop bandwidth of the joint processing of the terminals
  • the terminal processes only a downlink reference signal on the virtual BWP;
  • the terminal does not expect the downlink reference signal configuration to include a BWP ID
  • the BWP ID included in the downlink reference signal configuration received by the terminal is used to indicate the virtual BWP.
  • processing module 902 is configured to:
  • the channel state information report includes at least one of the following:
  • a first measurement result wherein the first measurement result includes: a channel state information measurement result of each of X hops in the frequency hopping transmission or a channel state information measurement result of each of all hops in the frequency hopping transmission;
  • X is a positive integer;
  • first indication information where the first indication information is used to indicate that the first measurement result is a single-hop channel state information measurement result
  • first frequency hopping information where the first frequency hopping information is used to indicate hop information associated with the first measurement result
  • a second measurement result wherein the second measurement result includes: a channel state information measurement result of Y hops jointly processed in the frequency hopping transmission or a channel state information measurement result of all hops jointly processed in the frequency hopping transmission; Y is a positive integer;
  • the second indication information is used to indicate that the second measurement result is a channel state information measurement result of multi-hop joint processing
  • Second frequency hopping information where the second frequency hopping information is used to indicate hop information associated with the second measurement result.
  • the measurement and/or reporting of ports for which the target hop is not dropped is considered.
  • the channel state information report includes at least one of the following:
  • the sub-band channel state information measurement results are obtained based on the complete ports in all hops of the frequency hopping transmission.
  • the first receiving module 901 is further used to receive reporting indication information sent by the network side device, where the reporting indication information is used to instruct the terminal to jointly process downlink reference signals of multiple hops.
  • the processing module 902 is configured to perform downlink reference signal measurement according to at least one group of subband configurations
  • the reporting module 903 is used to report the channel state information measurement result, wherein the subband configuration includes at least one of the starting point of the subband, the end point of the subband, the bitmap of the subband and the size of the subband.
  • At least one of the starting point of the subband, the end point of the subband and the bitmap of the subband in the subband configuration is determined according to a target frequency domain range, wherein the target frequency domain range includes at least one of an active BWP, a virtual BWP, a carrier, a total hop frequency domain range and a hop frequency domain range.
  • the size of the subband in the subband configuration is mapped according to the target bandwidth; or, the size of the subband in the subband configuration is indicated by the network side device from at least one candidate value, and the at least one candidate value is mapped according to the target bandwidth;
  • the target bandwidth includes at least one of a bandwidth consistent with the target frequency domain range, a hop bandwidth, a hop bandwidth with a minimum bandwidth, a hop bandwidth with a maximum bandwidth, and a bandwidth indicated by a network side device.
  • the subband configuration satisfies that: when there is no overlapping bandwidth between adjacent hops in the frequency domain, the terminal does not expect one subband to include multiple hops.
  • each hop is associated with a group of subband configurations, or multiple hops are associated with the same subband configuration.
  • the jointly processed channel state information measurement result includes: a jointly processed subband channel state information subband CSI measurement result, wherein the subband CSI measurement result is a result of frequency domain compression after compensating the phase offset between multiple hops in the frequency hopping transmission.
  • the subband CSI measurement result includes at least one of the following:
  • N1 groups of channel state information measurement results the N1 groups of channel state information measurement results including the channel state information measurement results of the N1 hops included in the subband;
  • N1 is a positive integer;
  • the third frequency hopping information is used to indicate hop information associated with the channel state information measurement result of the sub-band.
  • the reporting module 903 is further configured to report terminal capability information to the network side device, wherein the terminal capability information includes at least one of the following:
  • the downlink reference signal transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip.
  • the electronic device may be a terminal, or may be other devices other than a terminal.
  • the terminal may include but is not limited to the types of terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.
  • the downlink reference signal transmission device provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 2 to 6 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • FIG10 is a second structural diagram of a downlink reference signal transmission device provided in an embodiment of the present application.
  • a downlink reference signal transmission device 1000 is applied to a network side device.
  • the downlink reference signal transmission device 1000 includes: a sending module 1001 and a second receiving module 1002, wherein:
  • the sending module 1001 is used to send a downlink reference signal to the terminal through frequency hopping transmission;
  • the second receiving module 1002 is used to receive a channel state information report reported by the terminal, wherein the channel state information report includes a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result obtained after the terminal processes the downlink reference signals of multiple hops in the frequency hopping transmission.
  • a downlink reference signal is sent to a terminal via frequency hopping transmission
  • the terminal receives the downlink reference signal sent via frequency hopping transmission
  • processes the downlink reference signals of multiple hops in the frequency hopping transmission obtains a jointly processed channel state information measurement result and/or a non-jointly processed channel state information measurement result, and then reports a channel state information report to a network side device, wherein the channel state information report includes the jointly processed channel state information measurement result and/or the non-jointly processed channel state information measurement result, thereby enabling the terminal to process a large bandwidth downlink reference signal with a small channel state information report overhead.
  • multiple hops in the frequency hopping transmission are defined in the same downlink reference signal resource.
  • the hop pattern of the frequency hopping transmission is determined based on at least one of the following hop parameters:
  • Frequency hopping frequency domain related parameters including at least one of the hop number, hop bandwidth, overlapping bandwidth between adjacent hops in the frequency domain, hop start physical resource block PRB and hop total bandwidth;
  • the frequency hopping time domain related parameters include at least one of the starting time slot offset of the hop, the starting symbol of the downlink reference signal within the hop, and the period of the hop, or include at least one of the starting time slot offset of the downlink reference signal resource, the N starting symbols of the downlink reference signal resource, and the number of starting symbols occupied by one hop; N is a positive integer;
  • the time-frequency mapping related parameters include at least one of a hop time domain index, a hop frequency domain index, and a hop direction factor.
  • the hop start PRB is determined based on at least one of the following:
  • the hop start PRB of each hop is configured separately;
  • the hop start PRB of each hop is determined according to the configured start PRB of the first hop in the time domain and/or the lowest hop in the frequency domain, the hop bandwidth, and the overlapping bandwidth between adjacent hops in the frequency domain.
  • the frequency hopping transmission satisfies at least one of the following:
  • the lowest and/or highest hop boundary of the frequency domain position in the frequency hopping transmission is aligned with a specific frequency domain range boundary, and the specific frequency domain range includes at least one of an active partial bandwidth active BWP, a virtual BWP, a carrier and a hop total bandwidth boundary;
  • Each hop boundary in the frequency hopping transmission is aligned with a subband boundary
  • hop parameters of different downlink reference signal resources in a resource group other hop parameters except the hop time domain position are the same;
  • the terminal does not expect the interval between adjacent hops in the time domain to exceed a first switching time; the first switching time is determined by at least one of a network indication, a protocol agreement, or a terminal capability;
  • the terminal does not expect a downlink reference signal within a hop to cross a time slot boundary
  • the terminal does not expect the hop bandwidth to exceed the maximum bandwidth supported by the terminal;
  • the same port on different hops uses the same sequence during sequence mapping
  • Each hop in the frequency hopping transmission maps all downlink reference signal ports.
  • the lowest and/or highest hop boundary of the frequency domain position in the frequency hopping transmission is aligned with a specific frequency domain range boundary, including at least one of the following:
  • the resources in the hop that exceed the specific frequency domain range are not used to send the downlink reference signal
  • At least one of the starting PRB of the hop and the overlapping bandwidth of the hop and the hop adjacent to the frequency domain is adjusted so that the frequency domain position of the hop falls within the specific frequency domain range.
  • each hop boundary in the frequency hopping transmission is aligned with a subband boundary, including at least one of the following:
  • the starting PRB of each hop is aligned with the starting PRB of the subband
  • the end PRB of each hop is aligned with the end PRB of the subband
  • the bandwidth of each hop is an integer multiple of the sub-band.
  • At least one of the following parameters of different hops in the frequency hopping transmission is the same:
  • the number of downlink reference signal ports included in the hop is the number of downlink reference signal ports included in the hop.
  • the port index included in the hop is the port index included in the hop
  • CDM type Code division multiplexing CDM type
  • the first parameter in the hop parameter is carried by at least one of the following messages: a media access control MAC control element CE and downlink control information DCI;
  • the second parameter in the hop parameter is configured by high-level signaling and/or agreed upon by a protocol.
  • the channel state information report includes at least one of the following:
  • a first measurement result wherein the first measurement result includes: a channel state information measurement result of each of X hops in the frequency hopping transmission or a channel state information measurement result of each of all hops in the frequency hopping transmission;
  • X is a positive integer;
  • first indication information where the first indication information is used to indicate that the first measurement result is a single-hop channel state information measurement result
  • first frequency hopping information where the first frequency hopping information is used to indicate hop information associated with the first measurement result
  • a second measurement result wherein the second measurement result includes: a channel state information measurement result of Y hops jointly processed in the frequency hopping transmission or a channel state information measurement result of all hops jointly processed in the frequency hopping transmission; Y is a positive integer;
  • the second indication information is used to indicate that the second measurement result is a channel state information measurement result of multi-hop joint processing
  • Second frequency hopping information where the second frequency hopping information is used to indicate hop information associated with the second measurement result.
  • the channel state information report includes at least one of the following:
  • the sending module 1001 is further used to send reporting indication information to the terminal, where the reporting indication information is used to instruct the terminal to jointly process downlink reference signals of multiple hops.
  • the jointly processed channel state information measurement result includes: a jointly processed subband channel state information subband CSI measurement result, wherein the subband CSI measurement result is a result of frequency domain compression after compensating the phase offset between multiple hops in the frequency hopping transmission.
  • the subband CSI measurement result includes at least one of the following:
  • the third frequency hopping information is used to indicate hop information associated with the channel state information measurement result of the sub-band.
  • the downlink reference signal transmission device 1000 in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip.
  • the electronic device may be a network side device, or may be a device other than the network side device.
  • the network side device may include but is not limited to the types of network side devices 12 listed above, and the embodiment of the present application does not specifically limit this.
  • the downlink reference signal transmission device 1000 provided in the embodiment of the present application can implement each process implemented by the method embodiment of Figure 7 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • FIG11 is a schematic diagram of the structure of the communication device provided by the embodiment of the present application.
  • the communication device 1100 includes a processor 1101 and a memory 1102.
  • the memory 1102 stores a program or instruction that can be run on the processor 1101.
  • the program or instruction is executed by the processor 1101 to implement the various steps of the embodiment of the downlink reference signal transmission method shown in FIG2, and can achieve the same technical effect.
  • the communication device 1100 is a network side device
  • the program or instruction is executed by the processor 1101 to implement the various steps of the embodiment of the downlink reference signal transmission method shown in FIG7, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the present application also provides a terminal
  • Figure 12 is a schematic diagram of the hardware structure of the terminal provided in the present application.
  • the terminal 1200 includes but is not limited to: a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209, and at least some of the components in the processor 1210.
  • the terminal 1200 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1210 through a power management system, so as to implement functions such as managing charging, discharging, and power consumption management through the power management system.
  • a power source such as a battery
  • the terminal structure shown in FIG12 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.
  • the input unit 1204 may include a graphics processing unit (GPU) 12041 and a microphone 12042, and the graphics processing unit 12041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode.
  • the display unit 1206 may include a display panel 12061, and the display panel 12061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc.
  • the user input unit 1207 includes a touch panel 12071 and at least one of other input devices 12072.
  • the touch panel 12071 is also called a touch screen.
  • the touch panel 12071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
  • the volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM).
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DDRSDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • DRRAM direct memory bus random access memory
  • the embodiment of the present application also provides a network side device, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method embodiment shown in Figure 7.
  • the network side device embodiment corresponds to the above-mentioned network side device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the network side device embodiment, and can achieve the same technical effect.
  • the network side device may also include a network interface 136, which is, for example, a Common Public Radio Interface (CPRI).
  • CPRI Common Public Radio Interface
  • An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored.
  • a program or instruction is stored.
  • the program or instruction is executed by a processor, each process of the above-mentioned downlink reference signal transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned downlink reference signal transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

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Abstract

La présente demande relève du domaine technique des communications sans fil et concerne un procédé et un appareil de transmission de signal de référence de liaison descendante, un terminal, et un dispositif côté réseau. Le procédé de transmission de signal de référence de liaison descendante dans des modes de réalisation de la présente demande comprend les étapes suivantes : un terminal reçoit des signaux de référence de liaison descendante transmis par un dispositif côté réseau au moyen d'une transmission par saut de fréquence ; le terminal traite les signaux de référence de liaison descendante d'une pluralité de sauts dans la transmission par saut de fréquence pour obtenir un résultat de mesure d'informations d'état de canal conjointement traité et/ou un résultat de mesure d'informations d'état de canal non conjointement traité ; et le terminal rapporte un rapport d'informations d'état de canal au dispositif côté réseau, le rapport d'informations d'état de canal comprenant le résultat de mesure d'informations d'état de canal conjointement traité et/ou le résultat de mesure d'informations d'état de canal non conjointement traité.
PCT/CN2024/139803 2023-12-21 2024-12-17 Procédé et appareil de transmission de signal de référence de liaison descendante, terminal et dispositif côté réseau Pending WO2025130842A1 (fr)

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CN202311776966.X 2023-12-21
CN202311776966.XA CN120200633A (zh) 2023-12-21 2023-12-21 下行参考信号传输方法、装置、终端及网络侧设备

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Citations (4)

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Publication number Priority date Publication date Assignee Title
CN109391389A (zh) * 2017-08-04 2019-02-26 维沃移动通信有限公司 一种参考信号的传输方法、基站及终端
CN113038416A (zh) * 2019-12-25 2021-06-25 维沃移动通信有限公司 一种信道测量参考信号传输方法及终端
CN114765859A (zh) * 2020-12-31 2022-07-19 维沃移动通信有限公司 数据传输方法、装置及通信设备
WO2023028738A1 (fr) * 2021-08-30 2023-03-09 Apple Inc. Systèmes et procédés de mesure de csi reposant sur pdsch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109391389A (zh) * 2017-08-04 2019-02-26 维沃移动通信有限公司 一种参考信号的传输方法、基站及终端
CN113038416A (zh) * 2019-12-25 2021-06-25 维沃移动通信有限公司 一种信道测量参考信号传输方法及终端
CN114765859A (zh) * 2020-12-31 2022-07-19 维沃移动通信有限公司 数据传输方法、装置及通信设备
WO2023028738A1 (fr) * 2021-08-30 2023-03-09 Apple Inc. Systèmes et procédés de mesure de csi reposant sur pdsch

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