WO2022027684A1 - Procédé de signalement d'informations, procédé de traitement d'informations, dispositif terminal et dispositif réseau - Google Patents

Procédé de signalement d'informations, procédé de traitement d'informations, dispositif terminal et dispositif réseau Download PDF

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Publication number
WO2022027684A1
WO2022027684A1 PCT/CN2020/108006 CN2020108006W WO2022027684A1 WO 2022027684 A1 WO2022027684 A1 WO 2022027684A1 CN 2020108006 W CN2020108006 W CN 2020108006W WO 2022027684 A1 WO2022027684 A1 WO 2022027684A1
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WIPO (PCT)
Prior art keywords
preamble
threshold
terminal device
random access
format
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PCT/CN2020/108006
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English (en)
Chinese (zh)
Inventor
徐伟杰
左志松
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Oppo广东移动通信有限公司
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Priority to PCT/CN2020/108006 priority Critical patent/WO2022027684A1/fr
Priority to CN202080101239.1A priority patent/CN115669150A/zh
Publication of WO2022027684A1 publication Critical patent/WO2022027684A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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 application relates to the field of communications, and more particularly, to an information reporting method, an information processing method, a terminal device and a network device.
  • MTC Machine-Type Communication, machine type communication
  • eMTC LTE enhanced MTC, MTC based on LTE evolution
  • NB-IoT Narrow Band
  • 3GPP 3rd Generation Partnership Project
  • MTC/eMTC and NB-IoT terminals The cost of MTC/eMTC and NB-IoT terminals is low, the price is cheap, it supports ultra-low power consumption, and supports deep and wide coverage scenarios. Therefore, it is conducive to the rapid popularization of the Internet of Things technology in the early stage of development.
  • these technologies also have limitations in some application scenarios. Since MTC/eMTC and NB-IoT support some applications with low data rates and high transmission delays, in some IoT scenarios that require relatively high rates, such as smart security In the video surveillance, industrial applications requiring relatively low latency, it cannot be applied. However, if a new wireless (New Radio, NR) terminal is directly used, the cost is relatively high because the design indicators of the NR terminal, such as transmission rate, transmission delay, etc., far exceed the actual requirements of these scenarios.
  • New Radio, NR New Radio
  • a NR MTC terminal type can be designed that not only supports medium transmission rate, medium delay requirements, but also has low cost.
  • 3GPP calls this type of NR MTC terminal RedCap (Reduced Capability NR Devices, reduced capability NR) terminals. Compared with normal NR terminals, RedCap terminals have some different characteristics, and the network cannot make decisions or configurations adaptively according to the characteristics of different terminals.
  • the embodiments of the present application provide an information reporting method, an information processing method, a terminal device, and a network device, which can assist the network device to make decision or configuration by reporting the antenna configuration of the terminal device.
  • An embodiment of the present application provides an information reporting method, including: a terminal device reporting an antenna configuration, where the antenna configuration is used to indicate an antenna gain related parameter and/or the number of antennas of the terminal device.
  • An embodiment of the present application provides an information processing method, including: a network device receives an antenna configuration, where the antenna configuration is used to indicate a parameter related to antenna gain and/or the number of antennas of a terminal device.
  • An embodiment of the present application provides a terminal device, including: a reporting unit configured to report an antenna configuration, where the antenna configuration is used to indicate an antenna gain related parameter and/or the number of antennas of the terminal device.
  • An embodiment of the present application provides a network device, including: a receiving unit configured to receive an antenna configuration, where the antenna configuration is used to indicate an antenna gain related parameter and/or the number of antennas of a terminal device.
  • An embodiment of the present application provides a terminal device, including a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program stored in the memory, so that the terminal device executes the above-mentioned information reporting method.
  • An embodiment of the present application provides a network device including a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program stored in the memory, so that the network device executes the above-mentioned information processing method.
  • An embodiment of the present application provides a chip for implementing the above-mentioned information reporting method or information processing method.
  • the chip includes: a processor for invoking and running a computer program from the memory, so that a device installed with the chip executes the above-mentioned information reporting method or information processing method.
  • An embodiment of the present application provides a computer-readable storage medium for storing a computer program, which, when the computer program is run by a device, causes the device to execute the above-mentioned information reporting method or information processing method.
  • An embodiment of the present application provides a computer program product, including computer program instructions, and the computer program instructions cause a computer to execute the above-mentioned information reporting method or information processing method.
  • An embodiment of the present application provides a computer program, which, when running on a computer, enables the computer to execute the above-mentioned information reporting method or information processing method.
  • the network device by reporting the antenna configuration of the terminal device, including parameters related to the number of antennas and/or antenna gain, the network device can be assisted to perform corresponding configuration or operation based on the characteristics of the terminal device, thereby ensuring that the terminal device, such as the RedCap terminal, can be used in NR The system works normally.
  • FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for reporting information according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of an information processing method according to an embodiment of the present application.
  • FIG. 4 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a terminal device according to another embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a network device according to another embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a chip according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • Wireless Fidelity Wireless Fidelity
  • WiFi fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device can be a station (STAION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • STAION, ST in the WLAN
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • a mobile phone Mobile Phone
  • a tablet computer Pad
  • a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
  • augmented reality (Augmented Reality, AR) terminal Equipment wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc.
  • the network device may also be a base station set in a location such as land or water.
  • a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
  • the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell).
  • Pico cell Femto cell (Femto cell), etc.
  • These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • FIG. 1 exemplarily shows a communication system 100 .
  • the communication system includes one network device 110 and two terminal devices 120 .
  • the communication system 100 may include multiple network devices 110, and the coverage of each network device 110 may include other numbers of terminal devices 120, which are not limited in this embodiment of the present application.
  • the communication system 100 may further include a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF) and other network entities, to which the embodiments of the present application Not limited.
  • MME Mobility Management Entity
  • AMF Access and Mobility Management Function
  • the network equipment may further include access network equipment and core network equipment. That is, the wireless communication system further includes a plurality of core networks for communicating with the access network equipment.
  • the access network equipment may be a long-term evolution (long-term evolution, LTE) system, a next-generation (mobile communication system) (next radio, NR) system, or an authorized auxiliary access long-term evolution (authorized auxiliary access long-term evolution, LAA-
  • LTE long-term evolution
  • NR next-generation
  • LAA authorized auxiliary access long-term evolution
  • the evolved base station (evolutional node B, may be referred to as eNB or e-NodeB for short) in the LTE) system is a macro base station, a micro base station (also called a "small base station"), a pico base station, an access point (AP), Transmission site (transmission point, TP) or new generation base station (new generation Node B, gNodeB), etc.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device and a terminal device with a communication function, and the network device and the terminal device may be specific devices in this embodiment of the application, which will not be repeated here; It may include other devices in the communication system, for example, other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
  • a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
  • NR terminals need to support at least 2 receiving channels, and NR terminals in some frequency bands need to support 4 receiving channels; each receiving channel includes receiving antenna, filter, PA (Power Amplifier, power amplifier), AD (Analog Digital) , A/D) samplers and other components. Therefore, reducing the number of radio frequency channels that NR terminals need to be equipped with will significantly reduce terminal costs. By reducing the terminal with two RF channels to one RF channel, the cost of the chip module can be reduced by about 1/3. Therefore, the RedCap terminal can be equipped with a smaller number of antennas to reduce the cost of the terminal. Similarly, the method for reducing the cost of the terminal also includes reducing the bandwidth of the terminal, reducing the processing speed requirement of the terminal, and the like.
  • RedCap terminal The antenna gain loss of the RedCap terminal is described below.
  • Typical application scenarios of RedCap terminals are smart wearable devices, such as smart watches. Limited by the volume of smart wearable devices, the antenna size of such terminals is usually smaller than that of traditional NR terminals, so the antenna gain of RedCap terminals will be lost compared to traditional NR terminals. Usually, the antenna loss of such RedCap terminals will be above 3dB.
  • RedCap terminals have some different characteristics from traditional NR terminals, different types of RedCap terminals may also have some different characteristics.
  • the terminal may report the characteristics of the terminal, such as the antenna configuration, to the network, so that the network can adaptively make scheduling decisions or resource configuration based on the characteristics of different terminals.
  • FIG. 2 is a schematic flowchart of a method 200 for reporting information according to an embodiment of the present application.
  • the method can optionally be applied to the system shown in Figure 1, but is not limited thereto.
  • the method includes at least some of the following.
  • the terminal device reports the antenna configuration, where the antenna configuration is used to indicate the antenna gain related parameters and/or the number of antennas of the terminal device.
  • the terminal device reports the antenna configuration to the network device, and after receiving the antenna configuration, the network device can decide whether to adjust the transmission performance based on the antenna configuration. For example, the number of receive antennas supported by a RedCap terminal is less than that of an NR terminal, which will affect the reception performance of downlink signals.
  • the parameters related to the antenna gain include at least one of the following:
  • the antenna gain can be represented by the ratio of the maximum radiation intensity in a specified direction to the maximum radiation intensity of the antenna.
  • reporting the antenna configuration by the terminal device includes: the terminal device reports the antenna configuration by sending a preamble.
  • the preamble may also be called a preamble or a random access preamble, and may be used to identify the identity of the terminal device during random access.
  • the terminal device sends a preamble to the network device, and can report the antenna configuration through the preamble to the network device.
  • the method further includes at least one of the following:
  • the terminal device receives the correspondence between the PRACH resources of the physical random access channel and the antenna configuration.
  • the terminal device may receive the correspondence between the preamble and the antenna configuration from the network device, and then the terminal device searches for the corresponding preamble according to its own antenna configuration. For example, if the antenna is configured as one receiving antenna and an antenna gain of NdB, the corresponding preamble is preamble packet 1. The terminal device can send the preamble packet 1 to the network device.
  • the terminal device may receive the correspondence between the PRACH resource and the antenna configuration from the network device, and then the terminal device searches for the corresponding PRACH resource guide according to its own antenna configuration.
  • the antenna configuration is an antenna gain of NdB
  • the corresponding PRACH resource is X.
  • the terminal device may send the preamble format corresponding to the PRACH resource X to the network device as 1-A.
  • the correspondence between the preamble and the antenna configuration includes at least one of the following:
  • the preambles included in the PRACH resources may be grouped. For example, if the PRACH resource includes 48 preambles.
  • the leading 0-11 belong to the leading group 1, the leading 12-23 belong to the leading group 2, the leading 24-35 belong to the leading group 3, and the leading 36-48 belong to the leading group 4.
  • the corresponding relationship between the preamble group and the antenna configuration may include: the preamble group 1 corresponds to one antenna, and the antenna gain is 0dB; the preamble group 2 corresponds to an antenna gain of 3dB, the preamble group 2 corresponds to an antenna gain of 5dB, and the preamble group 2 corresponds to 2 antennas, The antenna gain is 3dB.
  • the preamble format 1-A corresponds to one antenna, and the antenna gain is 0dB; the preamble format 1-B corresponds to two antennas, and the antenna gain is 3dB.
  • different antenna configurations correspond to different preamble groups or preamble formats; or, different antenna configurations correspond to different PRACH resources.
  • different PRACH resources correspond to different preamble formats or different preamble repetition times. Therefore, after determining the PRACH resource configured by the antenna, the terminal device can determine the preamble format or different preamble repetition times corresponding to the PRACH resource.
  • the preamble format corresponding to PRACH resource 1 is 1-A
  • the preamble format corresponding to PRACH resource 2 is 1-B.
  • the number of preamble repetitions corresponding to PRACH resource 3 is 6, and the number of preamble repetitions corresponding to PRACH resource 4 is 3 times.
  • the method further includes: the terminal device obtains the downlink reference signal strength of the cell by measuring.
  • the method further includes: in the case that the measured downlink reference signal strength of the cell is less than the first threshold, selecting a preamble of the first format.
  • the method further includes: when the strength of the downlink reference signal is greater than or equal to the first threshold, selecting a preamble of the second format, where the length of the preamble of the second format is smaller than that of the first format The length of the leading format.
  • the terminal device may directly determine the selected preamble format according to the downlink reference signal strength and the threshold. For example, the terminal device selects preamble format 1-A when the downlink reference signal strength is greater than the first threshold, and selects preamble format 1-B when the downlink reference signal strength is less than or equal to the first threshold.
  • the terminal device may decide the selected preamble format in combination with the antenna configuration, the downlink reference signal strength and the threshold.
  • the terminal device can correspond to two preamble formats based on the same antenna configuration.
  • the preamble format 2-A is selected.
  • the preamble format 2-A is selected.
  • the preamble format 2-B is selected.
  • the method further includes: in the case that the strength of the downlink reference signal is less than the second threshold, selecting the first random access resource.
  • the method further includes:
  • a second random access resource is selected, wherein the number of preamble transmissions corresponding to the second random access resource is less than the number of preamble transmissions corresponding to the first random access resource.
  • the terminal device may directly determine the selected random access resource according to the downlink reference signal strength and the threshold. For example, the terminal device selects the first random access resource 3-A when the downlink reference signal strength is greater than the second threshold, and selects the first random access resource when the downlink reference signal strength is less than or equal to the second threshold 3-B.
  • the terminal device may decide the selected random access resource in combination with the antenna configuration, the downlink reference signal strength and the threshold.
  • the terminal device can correspond to two random access resources based on the same antenna configuration. In the case that the downlink reference signal strength is greater than the second threshold, the first random access resource 4-A is selected, and the downlink reference signal strength is less than or equal to In the case of the second threshold, the second random access resource 4-B is selected.
  • the method further includes: obtaining a downlink path loss (ie, a path loss) by measuring the terminal device.
  • a downlink path loss ie, a path loss
  • the method further includes: selecting a preamble in a third format when the downlink path loss is greater than a third threshold.
  • the method further includes: when the downlink path loss is less than or equal to a third threshold, selecting a preamble in a fourth format, where the length of the preamble in the fourth format is less than the length of the preamble in the third format. The length of the leading.
  • the terminal device can directly decide the selected preamble format according to the downlink path loss and the threshold. For example, the terminal device selects the preamble format 5-A when the downlink path loss is greater than the third threshold, and selects the preamble format 5-B when the downlink path loss is less than or equal to the third threshold.
  • the terminal device may decide the selected preamble format in combination with antenna configuration, downlink path loss and threshold.
  • the terminal device can correspond to two preamble formats based on the same antenna configuration.
  • the preamble format 6-A is selected, and when the downlink path loss is less than or equal to the third threshold, the preamble format is selected. 6-B.
  • the method further includes: selecting a third random access resource when the downlink path loss is greater than a fourth threshold.
  • the method further includes: when the downlink path loss is less than or equal to a fourth threshold, selecting a fourth random access resource, where the transmission times of the fourth random access resource is less than the third The number of transmissions of random access resources.
  • the terminal device may directly determine the selected random access resource according to the downlink path loss and the threshold. For example, the terminal device selects the first random access resource 7-A when the downlink path loss is greater than the fourth threshold, and selects the first random access resource 7-B when the downlink path loss is less than or equal to the fourth threshold.
  • the terminal device may decide the selected random access resource in combination with the antenna configuration, downlink path loss and threshold.
  • the terminal device can correspond to two random access resources based on the same antenna configuration.
  • the downlink path loss is greater than the fourth threshold
  • the third random access resource 8-A is selected.
  • the fourth random access resource 8-B is selected.
  • the embodiment of the present application can assist the network device to perform corresponding configuration or operation based on the characteristics of the terminal device, thereby ensuring that the terminal device, such as the RedCap terminal, can operate in the NR system. work normally.
  • FIG. 3 is a schematic flowchart of an information processing method 300 according to an embodiment of the present application.
  • the method can optionally be applied to the system shown in Figure 1, but is not limited thereto.
  • the method includes at least some of the following.
  • the network device receives an antenna configuration, where the antenna configuration is used to indicate a parameter related to antenna gain and/or the number of antennas of the terminal device.
  • the parameters related to the antenna gain include at least one of the following:
  • the network device receives the antenna configuration, including:
  • the network device receives the preamble and obtains the antenna configuration of the terminal device corresponding to the preamble.
  • the method further includes at least one of the following:
  • the network device sends the correspondence between the PRACH resources of the physical random access channel and the antenna configuration.
  • the correspondence between the preamble and the antenna configuration includes at least one of the following:
  • different antenna configurations correspond to different preamble groups or preamble formats.
  • different PRACH resources correspond to different preamble formats or different preamble repetition times.
  • the method further includes:
  • the network device sends at least one of the first threshold, the second threshold, the third threshold and the fourth threshold;
  • the first threshold is used to enable the terminal device to select the preamble of the first format when the downlink reference signal strength is less than the first threshold, and to select the preamble of the second format when the downlink reference signal strength is greater than or equal to the first threshold, wherein, the length of the preamble of the second format is less than the length of the preamble of the first format;
  • the second threshold is used to make the terminal device select the first random access resource when the downlink reference signal strength is less than the second threshold, and select the second random access resource when the downlink reference signal strength is greater than or equal to the second threshold , wherein the number of preamble transmissions corresponding to the second random access resource is less than the number of preamble transmissions corresponding to the first random access resource;
  • the third threshold is used to make the terminal device select the preamble in the third format when the downlink path loss is greater than the third threshold, and when the downlink path loss is less than or equal to the third threshold, select the preamble in the fourth format, where the fourth format The length of the preamble is less than the length of the preamble of the third format;
  • the fourth threshold is used to make the terminal device select the third random access resource when the downlink path loss is greater than the fourth threshold, and select the fourth random access resource when the downlink path loss is less than or equal to the fourth threshold, wherein the The number of transmissions of the fourth random access resource is less than the number of transmissions of the third random access resource.
  • the RedCap terminal may send a Preamble (preamble, or called a preamble) to the network to report the antenna configuration such as the terminal's antenna gain loss related parameters and/or the number of antennas to the network.
  • a Preamble preamble, or called a preamble
  • the reduction or performance loss of the antenna configuration of the terminal may affect the performance of the signal transmission related to the initial access procedure. For example, the number of receive antennas supported by a RedCap terminal is reduced from two receive antennas of traditional terminals to one receive antenna. Since the RedCap terminal loses the received power of one antenna when receiving the signal, and loses the space diversity gain that may be obtained when receiving two antennas, it will affect the receiving performance of the downlink signal, for example, it will lose 3dB.
  • the loss of antenna gain due to the reduction of the antenna size may also affect the transmission performance: on the one hand, it may affect the reception performance of the downlink signal, and on the other hand, it may also affect the transmission performance of the uplink signal. Table 1 below lists several possible examples of terminal transmission performance loss situations:
  • the antenna configurations of different terminals have different effects on uplink and downlink transmissions.
  • the number of antennas of the wearable device is 1Rx (1 receiving antenna), and the antenna has a 3dB antenna gain performance loss
  • the downlink transmission performance loss will reach 6dB (1Rx causes 3dB loss + antenna gain loss of 3dB).
  • the transmission performance loss is 3dB.
  • the number of antennas of other RedCap terminals is 1Rx, but the antenna has no antenna gain performance loss, the corresponding downlink transmission performance loss reaches 3dB (1Rx causes a 3dB loss), while the uplink transmission performance loss is 0dB.
  • the network In order to deal with the influence of different terminal antenna configurations on uplink or downlink transmission, the network usually needs some compensatory measures, such as reducing the transmission code rate, increasing the transmission power, and increasing the transmission duration to make up for the aforementioned transmission performance loss. .
  • the network knows the specific antenna parameters of the terminal: number of receiving antennas, antenna gain (or antenna gain loss), etc., the network can implement appropriate compensation measures for the transmission of the terminal. For example, taking the wearable device in Table 1 as an example, since the number of antennas is 1Rx, the antenna gain is 3dB, the downlink transmission performance loss is 6dB, and the uplink transmission performance loss is 3dB, the transmission power can be increased by 3dB to reduce the Transmission performance loss.
  • the network and the terminal need to perform uplink and downlink communication. Therefore, the earlier the network obtains the terminal's antenna configuration, the better it is, which is more conducive to the stable and reliable completion of the terminal's random access process.
  • the terminal can report the antenna configuration of the terminal to the network in the following ways:
  • different preamble groups correspond to terminals with different antenna configurations.
  • the preamble can be divided into 4 groups, and each preamble group corresponds to one of the types of terminals.
  • each type of terminal initiates random access, only the preamble of the preamble group corresponding to this type of terminal is selected. For example, one is randomly selected from multiple preambles included in the preamble group corresponding to this type of terminal.
  • different preamble formats correspond to terminals with different antenna configurations.
  • different preamble formats can be configured to distinguish.
  • a preamble format that matches the cell radius can be configured; while for a terminal with antenna performance loss, a longer preamble format can be configured to improve the preamble transmission performance to compensate for the loss of antenna gain. Influence.
  • the terminals with different antennas can be configured correspondingly through different PRACH resources. For example, corresponding to the 4 types of terminals in Table 1, 4 sets of different PRACH resources can be configured, and each set of PRACH resources corresponds to one of the types of terminals. When each type of terminal initiates random access, only the preamble in the PRACH resource corresponding to this type of terminal is selected.
  • different PRACH resources may correspond to different preamble formats.
  • a terminal with no antenna gain loss can be configured with a preamble format that matches the cell radius; while for a terminal with antenna performance loss, a longer preamble format can be configured to improve the preamble transmission performance to compensate for the loss of antenna gain. .
  • different preamble repetition times may be configured for different terminals. For example, for a terminal without antenna gain loss, the preamble transmission is not repeated or a small amount of repetition; while for a terminal with antenna performance loss, repetition or more repetitions can be configured to improve the preamble transmission performance to compensate for the effect of antenna gain loss. .
  • the performance loss of the antenna gain of the UE at the cell edge is more serious. This is because, for the UE in the center of the cell, the setting of its uplink transmit power is based on the downlink path loss. The downlink path loss measured by the terminal with antenna gain loss will also be larger, so the uplink power it transmits will naturally be larger, so as to make up for the effect of the antenna gain loss. However, for the UE at the cell edge, its uplink transmit power has reached the maximum transmit power of the UE, so the transmit power cannot be increased further, so the performance of the edge UE will be lost.
  • adaptive enhancement can be done for edge UEs. For example, when the measured cell downlink reference signal strength of the terminal is greater than a certain threshold, the terminal selects normal preamble or PRACH resources for transmission. For another example, when the measured cell downlink reference signal strength of the terminal is less than a certain threshold, the terminal selects a PRACH resource corresponding to a longer preamble format or more transmission times to send the preamble.
  • the UE determines the transmission power P PRACH of the physical random access channel (PRACH) on the active UL (Uplink) BWP (Bandwidth Part) b of the carrier f of the serving cell c based on the DL-RS ,b,f,c (i) for serving cell c in transmission occasion i. See the formula below:
  • P PRACHb,,f,c (i) min ⁇ P CMAX,f,c (i),P PRACHt,arget,f,c +PL b,f,c ⁇ [unit can be dBm],
  • P CMAX,f,c ( i) may be the maximum output power configured by the UE of the serving cell c carrier f in the transmission opportunity i;
  • PL b, f, c is based on the DL RS (Reference Signal, reference signal) associated with the PRACH transmission on the active DL (Downlink, downlink) BWP of serving cell c on carrier f, and
  • the path loss of the activated UL-BWPb is calculated by the UE as the reference signal power in dB, that is, the high-layer filtering RSRP (Reference Signal Receiving Power, reference signal received power) in dBm.
  • RSRP Reference Signal Receiving Power, reference signal received power
  • the UE is based on the association with PRACH transmission SS/PBCH block to determine PL b,f,c .
  • SS/PBCH Synchronization Signal/Physical Broadcast Channel
  • the RedCap terminal can report the antenna configuration of the terminal, including the number of antennas and/or antenna gain loss, etc., so that the network can perform corresponding configuration or operation based on the characteristics of the terminal, thereby ensuring that the RedCap terminal can be used in the NR system. work normally.
  • FIG. 4 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
  • the terminal device 400 may include:
  • the reporting unit 401 is configured to report the antenna configuration, where the antenna configuration is used to indicate the antenna gain related parameters and/or the number of antennas of the terminal device.
  • the parameters related to the antenna gain include at least one of the following:
  • the reporting unit 401 reports the antenna configuration by sending a preamble.
  • the terminal device 400 further includes at least one of the following:
  • a first receiving unit 402 configured to receive the correspondence between the preamble and the antenna configuration
  • the second receiving unit 403 is configured to receive the correspondence between the PRACH resources of the physical random access channel and the antenna configuration.
  • the correspondence between the preamble and the antenna configuration includes at least one of the following:
  • different antenna configurations correspond to different preamble groups or preamble formats; or, different antenna configurations correspond to different PRACH resources.
  • different PRACH resources correspond to different preamble formats or different preamble repetition times.
  • the terminal device 400 further includes: a first measurement unit 404, configured to measure and obtain the downlink reference signal strength of the cell.
  • the terminal device 400 further includes: a first selection unit 405, configured to select a preamble of the first format when the measured downlink reference signal strength is less than the first threshold.
  • the first selection unit 404 is further configured to select the preamble of the second format when the measured downlink reference signal strength is greater than or equal to the first threshold, wherein the preamble of the second format is The length of the preamble is less than the length of the preamble of the first format.
  • the terminal device 400 further includes: a second selection unit 407, configured to select the first random access resource when the measured downlink reference signal strength is less than the second threshold.
  • the second selection unit 407 is further configured to select a second random access resource when the measured downlink reference signal strength is greater than or equal to the second threshold, wherein the second random access resource is The number of preamble transmissions corresponding to the access resource is less than the number of preamble transmissions corresponding to the first random access resource.
  • the terminal device 400 further includes: a second measurement unit 408, configured to measure and obtain the downlink path loss.
  • the terminal device 400 further includes: a third selection unit 409, configured to select a preamble in a third format when the measured downlink path loss is greater than a third threshold.
  • a third selection unit 409 configured to select a preamble in a third format when the measured downlink path loss is greater than a third threshold.
  • the third selection unit 409 is further configured to select the preamble of the fourth format when the measured downlink path loss is less than or equal to the third threshold, wherein the preamble of the fourth format is less than the length of the preamble of the third format.
  • the terminal device 400 further includes: a fourth selection unit 411, configured to select a third random access resource when the measured downlink path loss is greater than a fourth threshold.
  • the fourth selection unit 411 is further configured to select a fourth random access resource when the measured downlink path loss is less than or equal to a fourth threshold, where the fourth random access resource is The number of times of transmission of the incoming resource is less than the number of times of transmission of the third random access resource.
  • the terminal device 400 in this embodiment of the present application can implement the corresponding functions of the terminal device in the foregoing method embodiments.
  • each module (submodule, unit, or component, etc.) in the terminal device 400 reference may be made to the corresponding descriptions in the foregoing method embodiments, which are not repeated here.
  • the functions described by each module (submodule, unit, or component, etc.) in the terminal device 400 of the application embodiment may be implemented by different modules (submodule, unit, or component, etc.), or may be implemented by the same module Module (submodule, unit or component, etc.) implementation.
  • FIG. 6 is a schematic block diagram of a network device 500 according to an embodiment of the present application.
  • the network device 500 may include:
  • the receiving unit 501 is configured to receive an antenna configuration, where the antenna configuration is used to indicate an antenna gain related parameter and/or the number of antennas of a terminal device.
  • the parameters related to the antenna gain include at least one of the following:
  • the receiving unit 501 is configured to receive a preamble, and acquire an antenna configuration of a terminal device corresponding to the preamble.
  • the network device 500 further includes at least one of the following:
  • a first sending unit 502 configured to send the correspondence between the preamble and the antenna configuration
  • the second sending unit 503 is configured to send the correspondence between the PRACH resource of the physical random access channel and the antenna configuration.
  • the correspondence between the preamble and the antenna configuration includes at least one of the following:
  • different antenna configurations correspond to different preamble groups or preamble formats; or, different antenna configurations correspond to different PRACH resources.
  • different PRACH resources correspond to different preamble formats or different preamble repetition times.
  • the network device 500 further includes:
  • a third sending unit 504 configured to send at least one of the first threshold, the second threshold, the third threshold and the fourth threshold;
  • the first threshold is used to enable the terminal device to select the preamble of the first format when the downlink reference signal strength is less than the first threshold, and to select the preamble of the second format when the downlink reference signal strength is greater than or equal to the first threshold, wherein, the length of the preamble of the second format is less than the length of the preamble of the first format;
  • the second threshold is used to make the terminal device select the first random access resource when the downlink reference signal strength is less than the second threshold, and select the second random access resource when the downlink reference signal strength is greater than or equal to the second threshold , wherein the number of preamble transmissions corresponding to the second random access resource is less than the number of preamble transmissions corresponding to the first random access resource;
  • the third threshold is used to make the terminal device select the preamble in the third format when the downlink path loss is greater than the third threshold, and when the downlink path loss is less than or equal to the third threshold, select the preamble in the fourth format, where the fourth format The length of the preamble is less than the length of the preamble of the third format;
  • the fourth threshold is used to make the terminal device select the third random access resource when the downlink path loss is greater than the fourth threshold, and select the fourth random access resource when the downlink path loss is less than or equal to the fourth threshold, wherein the The number of transmissions of the fourth random access resource is less than the number of transmissions of the third random access resource.
  • the network device 500 in this embodiment of the present application can implement the corresponding functions of the network device in the foregoing method embodiments.
  • each module (submodule, unit, or component, etc.) in the network device 500 reference may be made to the corresponding descriptions in the foregoing method embodiments, which will not be repeated here.
  • the functions described by each module (submodule, unit, or component, etc.) in the network device 500 of the application embodiment may be implemented by different modules (submodule, unit, or component, etc.), or may be implemented by the same module Module (submodule, unit or component, etc.) implementation.
  • FIG. 8 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application.
  • the communication device 600 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so that the communication device 600 implements the methods in the embodiments of the present application.
  • the communication device 600 may further include a memory 620 .
  • the processor 610 may call and run a computer program from the memory 620, so that the communication device 600 implements the methods in the embodiments of the present application.
  • the memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 600 may be the network device of this embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.
  • the communication device 600 may be a terminal device in this embodiment of the present application, and the communication device 600 may implement corresponding processes implemented by the terminal device in each method in the embodiment of the present application, which is not repeated here for brevity.
  • FIG. 9 is a schematic structural diagram of a chip 700 according to an embodiment of the present application.
  • the chip 700 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiments of the present application.
  • the chip 700 may further include a memory 720 .
  • the processor 710 may call and run a computer program from the memory 720 to implement the method executed by the terminal device or the network device in the embodiment of the present application.
  • the memory 720 may be a separate device independent of the processor 710 , or may be integrated in the processor 710 .
  • the chip 700 may further include an input interface 730 .
  • the processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
  • the chip 700 may further include an output interface 740 .
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.
  • the chip can be applied to the terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the terminal device in each method of the embodiments of the present application, which is not repeated here for brevity.
  • Chips applied to network equipment and terminal equipment can be the same chip or different chips.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an off-the-shelf programmable gate array (field programmable gate array, FPGA), an application specific integrated circuit (ASIC) or Other programmable logic devices, transistor logic devices, discrete hardware components, etc.
  • DSP digital signal processor
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • the general-purpose processor mentioned above may be a microprocessor or any conventional processor or the like.
  • the memory mentioned above may be either volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM).
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • FIG. 10 is a schematic block diagram of a communication system 800 according to an embodiment of the present application.
  • the communication system 800 includes a terminal device 810 and a network device 820 .
  • the terminal device 810 reports the antenna configuration, where the antenna configuration is used to indicate the antenna gain related parameters and/or the number of antennas of the terminal device 810 .
  • the network device 820 receives the antenna configuration, which is used to indicate the antenna gain related parameters and/or the number of antennas of the terminal device 810 .
  • the terminal device 810 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 820 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the procedures or functions according to the embodiments of the present application are generated in whole or in part.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored on or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted over a wire from a website site, computer, server or data center (eg coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) means to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes one or more available media integrated.
  • the available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a Solid State Disk (SSD)), and the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium eg, a Solid State Disk (SSD)
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.

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Abstract

La présente demande concerne un procédé de signalement d'informations, un procédé de traitement d'informations, ainsi qu'un dispositif terminal et un dispositif réseau. Le procédé de rapport d'informations comprend les étapes suivantes : un dispositif terminal rapporte une configuration d'antenne, la configuration d'antenne servant à indiquer un paramètre lié à un gain d'antenne et/ou la quantité d'antenne du dispositif terminal. Dans les modes de réalisation de la présente demande, en rapportant la configuration d'antenne d'un dispositif terminal comprenant la quantité d'antenne et/ou un paramètre lié au gain d'antenne, un dispositif réseau peut être assisté dans l'exécution d'une configuration ou d'une opération correspondante d'après une caractéristique du dispositif terminal, ce qui garantit le fonctionnement normal du dispositif terminal.
PCT/CN2020/108006 2020-08-07 2020-08-07 Procédé de signalement d'informations, procédé de traitement d'informations, dispositif terminal et dispositif réseau WO2022027684A1 (fr)

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PCT/CN2020/108006 WO2022027684A1 (fr) 2020-08-07 2020-08-07 Procédé de signalement d'informations, procédé de traitement d'informations, dispositif terminal et dispositif réseau
CN202080101239.1A CN115669150A (zh) 2020-08-07 2020-08-07 信息上报方法、信息处理方法、终端设备和网络设备

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