WO2022027501A1 - Procédés de configuration et de réception de signal de référence, appareil, dispositif réseau, équipement utilisateur et support de stockage - Google Patents

Procédés de configuration et de réception de signal de référence, appareil, dispositif réseau, équipement utilisateur et support de stockage Download PDF

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Publication number
WO2022027501A1
WO2022027501A1 PCT/CN2020/107552 CN2020107552W WO2022027501A1 WO 2022027501 A1 WO2022027501 A1 WO 2022027501A1 CN 2020107552 W CN2020107552 W CN 2020107552W WO 2022027501 A1 WO2022027501 A1 WO 2022027501A1
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Prior art keywords
reference signal
location
ssb
time domain
network device
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PCT/CN2020/107552
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English (en)
Chinese (zh)
Inventor
刘洋
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2020/107552 priority Critical patent/WO2022027501A1/fr
Priority to CN202080001792.8A priority patent/CN112075049B/zh
Publication of WO2022027501A1 publication Critical patent/WO2022027501A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to a reference signal transmission technology, and in particular, to a method and apparatus for configuring and receiving a reference signal, a network device, a user equipment (User Equipment, UE), and a storage medium.
  • a reference signal transmission technology and in particular, to a method and apparatus for configuring and receiving a reference signal, a network device, a user equipment (User Equipment, UE), and a storage medium.
  • UE User Equipment
  • the main function of the reference signal is to perform signal synchronization, to perform control channel demodulation, and to realize network access.
  • the network side needs to repeatedly send the reference signal. Since the UE needs to detect the reference signal, the reference signal configuration is unreasonable, which will cause the UE antenna system to work continuously, and the UE power consumption will increase. Synchronization and channel demodulation do not help much.
  • embodiments of the present disclosure provide a reference signal configuration, a method and apparatus for receiving, a network device, a user equipment, and a storage medium.
  • a method for configuring a reference signal including:
  • the network device sends a reference signal at at least one of a first location and a second location; wherein the first location includes a first time domain location and/or a first frequency domain location, and the second location includes a second time domain location domain location and/or second frequency domain location.
  • the first location is before a paging occasion (Paging Occasion, PO);
  • the second position is located between a physical downlink control channel (Physical Downlink Control Channel, PDCCH) and a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • the method further includes:
  • the reference signal is sent at the second location.
  • the method further includes:
  • the reference signal is sent at the first position and the second position.
  • the reference signal sent at the first location is used as a wake-up signal (Wake Up Signal, WUS) of the user equipment.
  • WUS Wake Up Signal
  • the method further includes:
  • the reference signal is sent at the first position, and the reference signal is repeatedly sent and the configuration of the PO is repeated.
  • the method further includes:
  • the first position is positioned at a synchronization signal and a physical broadcast channel (Physical Broadcast Channel, PBCH) block (Synchronization Signal and PBCH block, before SSB); it is determined that the first position is located after the SSB only when the reference signal is to be carried at the first position; or
  • PBCH Physical Broadcast Channel
  • the first position is located behind the SSB; it is determined that the reference signal is only to be carried at the first position signal, the first position is located before the SSB.
  • the method further includes:
  • the network device determines that the reference signal is to be sent at both the first location and the second location, the first location is located in the first time domain; When the reference signal is used, the first position is located in the second time domain; the first time domain and the second time domain do not overlap.
  • the method further includes:
  • the configuration of PO is repeated; when it is determined that the reference signal is to be sent at both the first position and the second position, the configuration is not repeated Configuration of POs.
  • the reference signal includes at least one of the following signals:
  • Channel State Information Reference Signal Channel State Information-Reference Signal
  • CSI-RS Channel State Information-Reference Signal
  • TRS Tracking Reference Signal
  • a method for receiving a reference signal including:
  • the UE receives a reference signal at at least one of a first location and a second location, and performs synchronization based on the reference signal; wherein the first location includes a first time domain location and/or a first frequency domain location, and the The second location includes a second time domain location and/or a second frequency domain location.
  • the first location is before the PO
  • the second location is between the PDCCH and the PDSCH.
  • the method further includes:
  • the UE After receiving the reference signal at the first location, the UE wakes up the SSB listening function of the UE.
  • the method further includes:
  • the UE determines that the position for receiving the reference signals adjacent to the SSB is located before the SSB, and receives other reference signals between the PDCCH and the PDSCH, otherwise it does not receive other reference signals.
  • the method further includes:
  • the UE determines that the position for receiving the reference signals adjacent to the SSB is located after the SSB, and receives other reference signals between the PDCCH and PDSCH, otherwise it does not receive other reference signals.
  • the method further includes:
  • the UE When the UE receives the reference signal in the set time domain, it receives other reference signals between the PDCCH and PDSCH, otherwise it does not receive other reference signals.
  • the method further includes:
  • the UE When the UE determines that the PO is not repeated, it receives other reference signals between the PDCCH and PDSCH, otherwise it does not receive other reference signals.
  • the reference signal includes at least one of the following signals:
  • an apparatus for configuring a reference signal including:
  • a sending unit configured to send a reference signal at at least one of a first position and a second position; wherein the first position includes a first time domain position and/or a first frequency domain position, and the second position includes The second time domain location and/or the second frequency domain location.
  • the first location is before the PO
  • the second position is located between the physical downlink control channel PDCCH and the physical downlink shared channel PDSCH.
  • the apparatus further comprises:
  • the first determining unit is configured to trigger the sending unit to send the reference signal at the second position when it is determined that the communication parameter configured by the network device satisfies a preset communication condition.
  • the apparatus further comprises:
  • the second determining unit is configured to trigger the sending unit to send the reference signal at the first position and the second position when it is determined that the communication parameter configured by the network device does not meet the preset communication condition.
  • the reference signal sent at the first location is used as a wake-up signal WUS for the user equipment.
  • the second determining unit is further configured to trigger the sending unit to send the reference signal at the first position when it is determined that the communication parameters configured by the network device do not meet a preset communication condition, and repeat The reference signal is sent and the configuration of the PO is repeated.
  • the apparatus further includes:
  • a third determining unit configured to determine that when the reference signal is to be sent at both the first position and the second position, the first position is positioned before the synchronization signal and the PBCH block SSB; When the first location carries the reference signal, the first location is located after the SSB; or
  • the first position is located after the SSB; when it is determined that the reference signal is to be carried only at the first position, the The first position is located before the SSB.
  • the apparatus further includes:
  • a fourth determining unit configured to determine that when the reference signal is to be sent at both the first position and the second position, the first position is located in the first time domain; When the location carries the reference signal, the first location is located in the second time domain; the first time domain and the second time domain do not overlap.
  • the apparatus further includes:
  • a fifth determining unit configured to determine that only when the reference signal is to be carried at the first position, trigger the sending unit to repeat the configuration of PO; determine that the reference signal is to be sent at both the first position and the second position When the reference signal is used, the sending unit is triggered not to repeat the configuration of the PO.
  • the reference signal includes at least one of the following signals:
  • an apparatus for receiving a reference signal including:
  • a receiving unit configured to receive a reference signal at at least one of a first position and a second position; wherein the first position includes a first time domain position and/or a first frequency domain position, and the second position includes a second time domain location and/or a second frequency domain location;
  • a synchronization unit configured to perform synchronization based on the reference signal.
  • the first location is before the PO
  • the second location is between the PDCCH and the PDSCH.
  • the apparatus further comprises:
  • a wake-up unit configured to wake up the SSB listening function of the UE after the receiving unit receives the reference signal at the first position.
  • the apparatus further includes:
  • the first determining unit is configured to determine that the position where the reference signal adjacent to the SSB is received is located before the SSB, and trigger the receiving unit to receive other reference signals between the PDCCH and PDSCH, otherwise not to receive other reference signals.
  • the first determining unit is further configured to determine that the position where the reference signal adjacent to the SSB is received is located after the SSB, and trigger the receiving unit to receive other reference signals between the PDCCH and PDSCH, otherwise not to receive other reference signals the reference signal.
  • the receiving unit is further configured to:
  • the apparatus further includes:
  • the second determining unit is configured to trigger the receiving unit to receive other reference signals between the PDCCH and PDSCH when it is determined that the PO is not repeated, otherwise not to receive other reference signals.
  • the reference signal includes at least one of the following signals:
  • a network device including a processor, a transceiver, a memory, and an executable program stored on the memory and executable by the processor, the processor running the executable program When the program is executed, the steps of the reference signal configuration method described in the first aspect of the embodiments of the present disclosure are executed.
  • a user equipment including a processor, a transceiver, a memory, and an executable program stored on the memory and executable by the processor, the processor running the executable program When the program is executed, the steps of the method for receiving a reference signal described in the second aspect of the embodiment of the present disclosure are executed.
  • a storage medium on which an executable program is stored, and when the executable program is executed by a processor, the steps of the method for configuring the reference signal are implemented.
  • the reference signal configuration, receiving method and apparatus, network device, user equipment, and storage medium according to the embodiments of the present disclosure, by configuring the reference signal in the first position and the second position, so that the reference signal can be sent to the UE in at least two positions signal, the UE can be synchronized based on one of them, and can choose whether to listen to the reference signal at the second location according to the configuration information of the reference signal.
  • the embodiment of the present disclosure not only increases the flexibility of the reference signal configuration on the network side, but also saves UE power consumption.
  • FIG. 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment
  • FIG. 2 is a schematic flowchart of a method for configuring a reference signal according to an exemplary embodiment
  • FIG. 3 is a schematic flowchart of a method for receiving a reference signal according to an exemplary embodiment
  • FIG. 4 is a schematic diagram of a composition structure of an apparatus for configuring a reference signal according to an exemplary embodiment
  • FIG. 5 is a schematic diagram showing the composition and structure of an apparatus for receiving a reference signal according to an exemplary embodiment
  • Fig. 6 is a schematic diagram showing the composition and structure of a user equipment according to an exemplary embodiment.
  • first, second, third, etc. may be used in embodiments of the present disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the word "if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
  • the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several terminals 11 and several base stations 12 .
  • the terminal 11 may be a device that provides voice and/or data connectivity to the user.
  • the terminal 11 may communicate with one or more core networks via a radio access network (RAN), and the terminal 11 may be an IoT terminal such as a sensor device, a mobile phone (or "cellular" phone) and a
  • RAN radio access network
  • the computer of the IoT terminal for example, may be a fixed, portable, pocket, hand-held, built-in computer or a vehicle-mounted device.
  • a station For example, a station (Station, STA), a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a mobile station (mobile), a remote station (remote station), an access point, a remote terminal ( remote terminal), access terminal (access terminal), user device (user terminal), user agent (user agent), user equipment (user device), or user equipment (user equipment, UE).
  • the terminal 11 may also be a device of an unmanned aerial vehicle.
  • the terminal 11 may also be a vehicle-mounted device, for example, a trip computer with a wireless communication function, or a wireless communication device externally connected to the trip computer.
  • the terminal 11 may also be a roadside device, for example, a street light, a signal light, or other roadside devices with a wireless communication function.
  • the base station 12 may be a network-side device in a wireless communication system.
  • the wireless communication system may be a fourth generation mobile communication (the 4th generation mobile communication, 4G) system, also known as a long term evolution (Long Term Evolution, LTE) system; or, the wireless communication system may also be a 5G system, Also known as new radio (NR) system or 5G NR system.
  • the wireless communication system may be of any generation.
  • the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network, a new generation of radio access network).
  • the MTC system may be a network-side device in a wireless communication system.
  • the base station 12 may be an evolved base station (eNB) used in the 4G system.
  • the base station 12 may also be a base station (gNB) that adopts a centralized distributed architecture in a 5G system.
  • eNB evolved base station
  • gNB base station
  • the base station 12 adopts a centralized distributed architecture it usually includes a centralized unit (Central Unit, CU) and at least two distributed units (Distributed Unit, DU).
  • the centralized unit is provided with a protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control Protocol (Radio Link Control, RLC) layer, and a Media Access Control (Media Access Control, MAC) layer; distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control Protocol
  • MAC Media Access Control
  • distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.
  • a wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as
  • the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on a 5G next-generation mobile communication network technology standard.
  • an E2E (End to End, end-to-end) connection may also be established between the terminals 11 .
  • V2V vehicle to vehicle, vehicle-to-vehicle
  • V2I vehicle to Infrastructure, vehicle-to-roadside equipment
  • V2P vehicle to Pedestrian, vehicle-to-person communication in vehicle-to-everything (V2X) communication etc. scene.
  • the above wireless communication system may further include a network management device 13 .
  • the network management device 13 may be a core network device in a wireless communication system, for example, the network management device 13 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME).
  • the network management device may also be other core network devices, such as a serving gateway (Serving GateWay, SGW), a public data network gateway (Public Data Network GateWay, PGW), a policy and charging rules functional unit (Policy and Charging Rules) Function, PCRF) or home subscriber server (Home Subscriber Server, HSS), etc.
  • the implementation form of the network management device 13 is not limited in this embodiment of the present disclosure.
  • the execution subjects involved in the embodiments of the present disclosure include, but are not limited to: User Equipment (UE, User Equipment) in a cellular mobile communication system, and a base station of cellular mobile communication.
  • UE User Equipment
  • UE User Equipment
  • FIG. 2 is a schematic flowchart of a method for configuring a reference signal according to an exemplary embodiment. As shown in FIG. 2 , the method for configuring a reference signal according to an embodiment of the present disclosure includes the following processing steps:
  • Step 201 The network device sends a reference signal at at least one of the first location and the second location.
  • the first location may include a first time domain location and/or a first frequency domain location
  • the second location may include a second time domain location and/or a second frequency domain location.
  • the first position is located before the PO; the reference signal at the first position is located near the SSB, this is considering that the radio resource management (Radio Resource Management, RRM) of the communication system has a measurement requirement for the SSB, which also meets the requirements requirements of the agreement.
  • the first position may be located before the SSB or after the SSB.
  • the second location is between the PDCCH and PDSCH in the PO.
  • the second position may be located between the DCI and the paging message of the UE.
  • the UE may determine whether the PDSCH indicated by the DCI carries its own paging message according to whether the scrambling code in the PDCCH is its own, so as to determine whether to receive the PDSCH indicated by the DCI.
  • the reference signal when the network device determines that the communication parameter configured by itself does not meet the preset communication condition, the reference signal is sent at both the first location and the second location.
  • the communication parameter of the network device can be the size of the coverage area, the connection between the coverage area and the coverage area of other network devices, whether there are buildings in the current environment where the network device is located, etc.
  • the reference signal needs to be sent at both the first location and the second location. That is, the coverage of the network device is relatively large, and there is a weak coverage area, or when there are many weak coverage areas, the reference signal is sent at both the first location and the second location.
  • the reference signal is sent at both the first location and the second location.
  • the reference signal is sent at both the first location and the second location.
  • the network device determines that the communication parameters configured by itself do not meet the preset communication conditions, such as network devices set up in suburban or rural areas with fewer populations. possible.
  • the network device determines that its own communication parameters do not meet the preset communication conditions, it may also be determined by parameters such as the success rate of UE access, the call drop rate, and the reported measurement signal.
  • the preset communication conditions include that the deployment density of the network equipment is higher than the first set threshold, the coverage area of the network equipment is lower than the second set threshold, and the call drop rate of the UE at the cell edge is lower than The third set threshold, the cell edge handover success rate is higher than the fourth set threshold, and so on.
  • the reference signal transmitted at the first location may be used as the WUS.
  • the UE may wake up based on the reference signal of the first location and enable the SSB listening function.
  • the reference signal may only be sent at the first position, and in this case, the reference signal needs to be repeatedly sent at the first position and repeat the configuration of the PO.
  • the network device determines that the communication parameter configured by itself meets the preset communication condition, it only needs to send the reference signal at the second location. That is to say, when there are many network devices arranged in some areas, the network construction is good, and the signal of the coverage cell is good, the reference signal may be sent only at the second position.
  • the first location when the network device determines that the reference signal is to be sent at both the first location and the second location, the first location is located before the SSB; When the first location carries the reference signal, the first location is located after the SSB; or
  • the first position is located behind the SSB; it is determined that the reference signal is only to be carried at the first position signal, the first position is located before the SSB.
  • whether the network device sends the reference signal at the first position may be indicated by the bearing position of the reference signal at the first position, so as to facilitate the UE to determine according to the bearer position of the reference signal at the first position Whether the second location sends the reference signal, so as to listen to the reference signal correspondingly according to the actual reference signal sending mechanism of the network device, avoid unnecessary energy consumption of the UE, and save the power of the UE.
  • the above-mentioned indication manner of indicating whether the second location sends the reference signal by the reference signal being located before or after the SSB is pre-configured in the UE, that is, the above-mentioned reference signal can be located in the The way of indicating whether the second location sends the reference signal before or after the SSB is a part of the communication protocol.
  • the first location when the network device determines that the reference signal is to be sent at both the first location and the second location, the first location is located in the first time domain; When the first location carries the reference signal, the first location is located in the second time domain; the first time domain and the second time domain do not overlap.
  • the UE may be notified whether to send a reference signal at the second location through the bearer time domain of the first location. For example, when the reference signal at the first position is located on the first orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol before the SSB, the second position is instructed to send the reference When the reference signal at the first position is located on another OFDM symbol, the second position is instructed not to transmit the reference signal.
  • OFDM Orthogonal frequency division multiplexing
  • whether the second location sends the reference signal may be indicated by the bearing location of the reference signal near the SSB.
  • whether the second location transmits the reference signal may be indicated by the offset location between the bearing location of the reference signal near the SSB and the SSB.
  • the second position is instructed to send the reference signal, and when the bearing position of the reference signal near the SSB is within the OFDM symbol before and after the SSB
  • the second position is on an OFDM symbol other than that, it is indicated that the reference signal is not sent at the second position.
  • the network device determines to repeat the configuration of the PO only when the reference signal is to be carried at the first location; When the reference signal is mentioned above, the configuration of PO is not repeated. That is, in this embodiment of the present disclosure, whether the reference signal is also sent at the second location may be indicated by whether there is a repeated PO.
  • the reference signal includes at least one of the following signals: a channel state information reference signal (Channel State Information-Reference Signal, CSI-RS), and a tracking reference signal (Tracking Reference Signal, TRS).
  • CSI-RS Channel State Information-Reference Signal
  • TRS Tracking Reference Signal
  • the CSI-RS or TRS may be sent at the first position, and the reference signal sent at the second position may also be the CSI-RS or TRS.
  • FIG. 3 is a schematic flowchart of a method for receiving a reference signal according to an exemplary embodiment. As shown in FIG. 3 , the method for receiving a reference signal according to an embodiment of the present disclosure includes the following processing steps:
  • Step 301 the UE receives a reference signal at at least one of the first location and the second location.
  • the first position may include a first time domain position and/or a first frequency domain position
  • the second position may include a second time domain position and/or a second frequency domain position
  • the first position is located before the PO; the reference signal at the first position is located near the SSB, which is considering that the radio resource management (Radio Resource Management, RRM) of the communication system has a measurement on the SSB requirements, which are also in line with the relevant requirements of the agreement.
  • the first position may be located before the SSB or after the SSB.
  • the second position is located between the PDCCH and PDSCH in the PO.
  • the process of receiving the paging may include detecting the PDCCH from the corresponding search space of the PO, and then parsing the DCI of the paging. If the DCI is parsed, receiving the PDSCH according to the DCI, and demodulating the paging message; if the identifier in the paging message is For the UE, it initiates a connection, otherwise it continues to sleep; if no DCI is found, it means that there is no paging message in the current cycle of discontinuous reception of DRX_on.
  • the UE after receiving the reference signal at the first location, the UE wakes up the SSB listening function of the UE. That is, when the network device transmits the reference signal at both the first location and the second location, the reference signal at the first location can be used as a WUS.
  • the UE may determine whether to wake up the listening function of the SSB based on whether the reference signal is received near the SSB.
  • the method further includes: the UE determines that the position for receiving the reference signal adjacent to the SSB is located before the SSB, receives other reference signals between the PDCCH and the PDSCH, otherwise does not receive other reference signals.
  • the method further includes: the UE determines that the position for receiving the reference signal adjacent to the SSB is behind the SSB, and receives other reference signals between the PDCCH and the PDSCH, otherwise it does not receive other reference signals.
  • whether the network device sends the reference signal at the first location may be indicated by the bearing location of the reference signal sent at the first location.
  • the UE determines whether to send the reference signal at the second position according to the bearing position of the reference signal at the first position, so as to listen to the reference signal correspondingly according to the actual reference signal sending mechanism of the network device, so as to avoid unnecessary use of the UE by the UE. Energy consumption, saving UE power.
  • the above-mentioned reference signal is located before or after the SSB to indicate whether the second location sends the reference signal.
  • the indication method is pre-configured in the UE, and the UE is based on the actually received bearer position of the reference signal near the SSB. , to determine whether a reference signal is carried between the PDCCH and the PDSCH, so as to determine whether to listen to the reference signal between the PDCCH and the PDSCH.
  • the method further includes: when the UE receives the reference signal in the set time domain, receiving other reference signals between the PDCCH and the PDSCH, otherwise not receiving other reference signals.
  • the first location when the network device determines that the reference signal is to be sent at both the first location and the second location, the first location is located in the first time domain; When the first location carries the reference signal, the first location is located in the second time domain; the first time domain and the second time domain do not overlap.
  • the UE may be notified whether to send a reference signal at the second location through the bearer time domain of the first location. For example, when the reference signal at the first position is located on the first valid OFDM symbol before the SSB, the second position is instructed to transmit the reference signal, and the reference signal at the first position When the signal is located on other OFDM symbols, the second position is instructed not to transmit the reference signal.
  • whether the second location sends the reference signal may be indicated by the bearing location of the reference signal near the SSB.
  • whether the second location transmits the reference signal may be indicated by the offset location between the bearing location of the reference signal near the SSB and the SSB.
  • the second position is instructed to send the reference signal, and when the bearing position of the reference signal near the SSB is within the OFDM symbol before and after the SSB
  • the second position is on an OFDM symbol other than that, it is indicated that the reference signal is not sent at the second position.
  • the method further includes: when the UE determines that the PO is not repeated, receiving other reference signals between the PDCCH and the PDSCH, otherwise not receiving other reference signals.
  • the network device determines to repeat the configuration of the PO only when the reference signal is to be carried at the first location; When the reference signal is mentioned above, the configuration of PO is not repeated. That is, in this embodiment of the present disclosure, the UE may determine whether to send the reference signal at the second location by determining whether the second location has a repeated PO, so as to determine whether to listen to the reference signal sent at the second location. Signal.
  • Step 302 the UE performs synchronization based on the reference signal.
  • the reference signal includes at least one of the following signals: CSI-RS, TRS. That is to say, in the embodiment of the present disclosure, the network device may send CSI-RS or TRS at the first position, and the reference signal sent at the second position may also be CSI-RS or TRS.
  • the reference signal by configuring the reference signal in the first position and the second position, the reference signal can be sent to the UE in at least two positions, the UE can be synchronized based on one of them, and the reference signal can be configured according to the configuration information of the reference signal.
  • the embodiment of the present disclosure For selecting whether to listen to the reference signal at the second location, the embodiment of the present disclosure not only increases the flexibility of the reference signal configuration at the network side, but also saves the power consumption of the UE.
  • FIG. 4 is a schematic diagram showing the composition and structure of an apparatus for configuring a reference signal according to an exemplary embodiment.
  • the apparatus for configuring a reference signal according to an embodiment of the present disclosure includes:
  • a sending unit 40 configured to send a reference signal at at least one of a first position and a second position; wherein the first position may include a first time domain position and/or a first frequency domain position, and the second position The location may include a second time domain location and/or a second frequency domain location.
  • the first location is before the PO
  • the second location is between the PDCCH and the PDSCH.
  • the apparatus further includes:
  • the first determining unit (not shown in FIG. 4 ) is configured to trigger the sending unit 40 to send the reference signal at the second position when it is determined that the communication parameter configured by the network device satisfies the preset communication condition.
  • the apparatus further includes:
  • the second determining unit (not shown in FIG. 4 ) is configured to trigger the sending unit 40 to send the sent data at the first position and the second position when it is determined that the communication parameters configured by the network device do not meet the preset communication conditions. the reference signal.
  • the reference signal sent at the first location is used as the WUS of the user equipment.
  • the second determining unit is further configured to trigger the sending unit 40 to send the reference signal at the first position when it is determined that the communication parameters configured by the network device do not meet the preset communication conditions, and The reference signal is repeatedly sent and the configuration of the PO is repeated.
  • the apparatus further includes:
  • a third determining unit (not shown in FIG. 4 ), configured to determine that when the reference signal is to be transmitted at both the first position and the second position, the first position is located in the synchronization signal and the PBCH block Before the SSB; determine that the first location is located after the SSB only when the reference signal is to be carried at the first location; or
  • the first position is located after the SSB; when it is determined that the reference signal is to be carried only at the first position, the The first position is located before the SSB.
  • the apparatus further includes:
  • a fourth determining unit (not shown in FIG. 4 ), configured to determine that when the reference signal is to be sent at both the first position and the second position, the first position is located in the first time domain; It is determined that the first position is located in the second time domain only when the reference signal is to be carried at the first position; the first time domain and the second time domain do not overlap.
  • the apparatus further includes:
  • a fifth determination unit (not shown in FIG. 4 ), configured to determine that only when the reference signal is to be carried in the first position, trigger the sending unit 40 to repeat the configuration of PO; determine to be in the first position When the reference signal is sent both at the second position and the second position, the sending unit 40 is triggered not to repeat the configuration of the PO.
  • the reference signal includes at least one of the following signals: CSI-RS, TRS.
  • the sending unit 40, the first determining unit, the second determining unit, the third determining unit, the fourth determining unit, the fifth determining unit, etc. may be processed by one or more central processing units (CPU, Central Processing). Unit), Graphics Processor (GPU, Graphics Processing Unit), Baseband Processor (BP, base processor), Application Specific Integrated Circuit (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device) , Complex Programmable Logic Device (CPLD, Complex Programmable Logic Device), Field Programmable Gate Array (FPGA, Field-Programmable Gate Array), General Purpose Processor, Controller, Microcontroller (MCU, Micro Controller Unit), Microprocessor It can be implemented by a Microprocessor (Microprocessor), or other electronic components, and can also be implemented in combination with one or more radio frequency (RF, radio frequency) antennas, so as to perform the configuration method of the reference signal in the foregoing embodiment.
  • CPU Central Processing
  • GPU Graphics Processing Unit
  • BP Baseband Process
  • FIG. 5 is a schematic diagram showing the composition and structure of an apparatus for receiving a reference signal according to an exemplary embodiment.
  • the apparatus for receiving a reference signal according to an embodiment of the present disclosure includes:
  • a receiving unit 50 configured to receive a reference signal at at least one of a first position and a second position; wherein the first position may include a first time domain position and/or a first frequency domain position, and the second position The location may include a second time domain location and/or a second frequency domain location;
  • the synchronization unit 51 is configured to perform synchronization based on the reference signal.
  • the first location is before the PO
  • the second location is between the PDCCH and the PDSCH.
  • the apparatus further includes:
  • a wake-up unit (not shown in FIG. 5 ), configured to wake up the SSB listening function of the UE after the receiving unit receives the reference signal at the first position.
  • the apparatus further includes:
  • the first determining unit (not shown in FIG. 5 ) is configured to determine that the position where the reference signal adjacent to the SSB is received is located before the SSB, and triggers the receiving unit 50 to receive other reference signals between the PDCCH and PDSCH, otherwise it will not receive other reference signals. the reference signal.
  • the first determining unit is further configured to determine that the position where the reference signal adjacent to the SSB is received is located after the SSB, and trigger the receiving unit 50 to receive other reference signals between the PDCCH and PDSCH, otherwise not to receive other reference signals.
  • the receiving unit 50 is further configured to:
  • the apparatus further includes:
  • the second determining unit (not shown in FIG. 5 ) is configured to trigger the receiving unit 50 to receive other reference signals between the PDCCH and PDSCH when it is determined that the PO is not repeated, otherwise, no other reference signals are received.
  • the reference signal includes at least one of the following signals: CSI-RS, TRS.
  • the receiving unit 50, the synchronization unit 51, the wake-up unit, the first determination unit, the second determination unit, etc. may be controlled by one or more central processing units (CPUs, Central Processing Units), graphics processing units (GPUs).
  • CPUs Central Processing Units
  • GPUs graphics processing units
  • CMOS complementary metal-oxide-semiconductor
  • BP Baseband Processor
  • ASIC Application Specific Integrated Circuit
  • DSP Programmable Logic Device
  • PLD Programmable Logic Device
  • CPLD Complex Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • controller microcontroller
  • MCU Micro Controller Unit
  • microprocessor Microprocessor
  • FIG. 6 is a block diagram of a user equipment 6000 according to an exemplary embodiment.
  • user equipment 6000 may be a mobile phone, computer, digital broadcast user equipment, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
  • user equipment 6000 may include one or more of the following components: processing component 6002, memory 6004, power supply component 6006, multimedia component 6008, audio component 6010, input/output (I/O) interface 6012, sensor component 6014 , and the communication component 6016.
  • the processing component 6002 generally controls the overall operations of the user equipment 6000, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 6002 can include one or more processors 6020 to execute instructions to perform all or some of the steps of the methods described above.
  • processing component 6002 may include one or more modules that facilitate interaction between processing component 6002 and other components.
  • processing component 6002 may include a multimedia module to facilitate interaction between multimedia component 6008 and processing component 6002.
  • Memory 6004 is configured to store various types of data to support operation at device 6000 . Examples of such data include instructions for any application or method operating on the user device 6000, contact data, phonebook data, messages, pictures, videos, and the like. Memory 6004 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power supply component 6006 provides power to various components of user equipment 6000.
  • Power components 6006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to user equipment 6000.
  • Multimedia component 6008 includes a screen that provides an output interface between user equipment 6000 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. A touch sensor can sense not only the boundaries of a touch or swipe action, but also the duration and pressure associated with the touch or swipe action.
  • the multimedia component 6008 includes a front-facing camera and/or a rear-facing camera. When the device 6000 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
  • Audio component 6010 is configured to output and/or input audio signals.
  • the audio component 6010 includes a microphone (MIC) that is configured to receive external audio signals when the user device 6000 is in operating modes, such as call mode, recording mode, and voice recognition mode.
  • the received audio signal may be further stored in memory 6004 or transmitted via communication component 6016.
  • audio component 6010 also includes a speaker for outputting audio signals.
  • the I/O interface 6012 provides an interface between the processing component 6002 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
  • Sensor component 6014 includes one or more sensors for providing user equipment 6000 with status assessments of various aspects.
  • the sensor component 6014 can detect the open/closed state of the device 6000, the relative positioning of components, such as the display and keypad of the user device 6000, the sensor component 6014 can also detect the position of the user device 6000 or a component of the user device 6000 changes, the presence or absence of user contact with the user equipment 6000, the orientation or acceleration/deceleration of the user equipment 6000 and the temperature change of the user equipment 6000.
  • Sensor assembly 6014 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 6014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 6014 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 6016 is configured to facilitate wired or wireless communications between user device 6000 and other devices.
  • the user equipment 6000 can access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof.
  • the communication component 6016 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 6016 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • user equipment 6000 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A programming gate array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components are implemented for implementing the above-mentioned receiving method of the reference signal.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A programming gate array
  • controller a controller
  • microcontroller a microprocessor or other electronic components
  • a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 6004 including instructions, and the above-mentioned instructions can be executed by the processor 6020 of the user equipment 6000 to complete the above-mentioned method for receiving a reference signal .
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • the embodiments of the present disclosure further describe a network device, including a processor, a transceiver, a memory, and an executable program stored on the memory and executable by the processor, and the processor executes the executable program when the processor runs the executable program
  • a network device including a processor, a transceiver, a memory, and an executable program stored on the memory and executable by the processor, and the processor executes the executable program when the processor runs the executable program
  • the embodiment of the present disclosure further describes a user equipment, including a processor, a transceiver, a memory, and an executable program stored in the memory and executable by the processor, and the processor executes the executable program when the processor runs the executable program.
  • the embodiment of the present disclosure further describes a storage medium, on which an executable program is stored, and the executable program is executed by a processor to perform the steps of the reference signal configuration and reception methods of the foregoing embodiments.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente invention concerne des procédés de configuration et de réception de signal de référence, un appareil, un dispositif réseau, un équipement utilisateur et un support de stockage. Le procédé de configuration de signal de référence comprend les étapes suivantes : un dispositif réseau envoie un signal de référence à au moins une position entre une première position et une seconde position; la première position comprenant une première position dans le domaine temporel et/ou une première position dans le domaine fréquentiel, et la seconde position comprenant une seconde position dans le domaine temporel et/ou une seconde position dans le domaine fréquentiel. Au moyen de la configuration d'un signal de référence entre une première position et une seconde position, le signal de référence peut être envoyé à un UE au niveau d'au moins deux positions, permettant à l'UE d'effectuer une synchronisation sur la base d'une de celles-ci, et l'interruption ou non d'un signal de référence pour une seconde position est déterminée sur la base des informations de configuration de signal de référence, ce qui augmente la flexibilité de la configuration du signal de référence côté réseau, et réduit également la consommation d'énergie de l'UE.
PCT/CN2020/107552 2020-08-06 2020-08-06 Procédés de configuration et de réception de signal de référence, appareil, dispositif réseau, équipement utilisateur et support de stockage WO2022027501A1 (fr)

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PCT/CN2020/107552 WO2022027501A1 (fr) 2020-08-06 2020-08-06 Procédés de configuration et de réception de signal de référence, appareil, dispositif réseau, équipement utilisateur et support de stockage
CN202080001792.8A CN112075049B (zh) 2020-08-06 2020-08-06 参考信号的配置、接收方法及装置、网络设备、用户设备及存储介质

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