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WO2021032006A1 - Procédé d'indication de faisceau de liaison descendante, dispositif et support de stockage - Google Patents

Procédé d'indication de faisceau de liaison descendante, dispositif et support de stockage Download PDF

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Publication number
WO2021032006A1
WO2021032006A1 PCT/CN2020/109249 CN2020109249W WO2021032006A1 WO 2021032006 A1 WO2021032006 A1 WO 2021032006A1 CN 2020109249 W CN2020109249 W CN 2020109249W WO 2021032006 A1 WO2021032006 A1 WO 2021032006A1
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WIPO (PCT)
Prior art keywords
terminal device
reporting
timing
indication information
pur
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Ceased
Application number
PCT/CN2020/109249
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English (en)
Chinese (zh)
Inventor
雷珍珠
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Spreadtrum Semiconductor Nanjing Co Ltd
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Spreadtrum Semiconductor Nanjing Co Ltd
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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
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • This application relates to the field of communication technologies, and in particular to a downlink beam indication method, device, and storage medium.
  • 5G communication systems have been extensively studied to achieve large-capacity, high-speed transmission requirements.
  • a PO contains multiple paging monitoring occasions (Paging monitoring occasions, referred to as PMO), and the number of PMOs is the same as the number of synchronization signal blocks (Synchronization Signal Block, referred to as SSB), that is, the number of PMOs is the same as the number of base station beams
  • PMO paging monitoring occasions
  • SSB Synchronization Signal Block
  • the base station needs to send the same paging message in each beam direction, and the UE selects an appropriate PMO according to its own measurement results to monitor the Physical Downlink Control Channel (PDCCH) and receive the paging message.
  • PDCCH Physical Downlink Control Channel
  • This application provides a downlink beam indication method, device and storage medium to reduce resource overhead.
  • this application provides a downlink beam indication method, including:
  • the terminal device determines a reporting time for reporting current indication information, where the current indication information is used by the network device to determine a downlink beam direction for sending a paging message;
  • the terminal device reports the current indication information to the network device at the reporting time.
  • this application provides a downlink beam indication method, including:
  • the network device receives the current indication information sent by the terminal device at the reporting time
  • the network device determines a downlink beam direction for sending a paging message according to the current indication information, and sends the paging message to the terminal device in the downlink beam direction.
  • an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the method in any one of the first aspect and the second aspect is implemented.
  • an embodiment of the present application provides a terminal device, including:
  • a memory for storing executable instructions of the processor
  • the processor is configured to execute the method of any one of the first aspect by executing the executable instruction.
  • an embodiment of the present application provides a network device, including:
  • a memory for storing executable instructions of the processor
  • the processor is configured to execute the method of any one of the second aspect by executing the executable instruction.
  • an embodiment of the present application provides a program, when the program is executed by a processor, it is used to execute the downlink beam indication method described in any one of the first and second aspects above.
  • the foregoing processor may be a chip.
  • an embodiment of the present application provides a computer program product, including program instructions, and the program instructions are used to implement the downlink beam indication method described in any one of the first aspect and the second aspect.
  • an embodiment of the present application provides a chip, including a processing module and a communication interface, and the processing module can execute the downlink beam indication method described in any one of the first and second aspects.
  • the chip also includes a storage module (eg, memory), the storage module is used to store instructions, the processing module is used to execute the instructions stored in the storage module, and the execution of the instructions stored in the storage module causes the processing module to execute the first aspect Any one of the downlink beam indication methods.
  • a storage module eg, memory
  • the storage module is used to store instructions
  • the processing module is used to execute the instructions stored in the storage module
  • the execution of the instructions stored in the storage module causes the processing module to execute the first aspect Any one of the downlink beam indication methods.
  • the terminal device determines the reporting timing of the indication information, the indication information is used to report the downlink beam direction for sending paging messages, and the network device can obtain it through the indication information reported by the terminal device
  • the network device For the downlink beam direction corresponding to the terminal device, the network device only needs to send paging messages in the downlink beam direction reported by the terminal device, which avoids the resources caused by the network device in the related art that needs to repeatedly send paging messages in each beam direction. Waste, thereby saving resource overhead.
  • Figure 1 is a schematic diagram of a network architecture provided by an embodiment of this application.
  • Fig. 2 is a schematic flowchart of an embodiment of a downlink beam indication method provided by the present application
  • FIG. 3 is a schematic diagram of signaling interaction in an embodiment of the downlink beam indication method provided by the present application.
  • FIG. 5 is a schematic diagram of the principle of another embodiment of the method provided by the present application.
  • FIG. 6 is a schematic diagram of the principle of another embodiment of the method provided by the present application.
  • FIG. 7 is a schematic flowchart of another embodiment of the downlink beam indication method provided by the present application.
  • FIG. 8 is a schematic structural diagram of an embodiment of a terminal device provided by the present application.
  • Fig. 9 is a schematic structural diagram of an embodiment of a network device provided by the present application.
  • the terminal device involved in this application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • the terminal device can communicate with at least one core network via a radio access network (Radio Access Network, RAN).
  • RAN Radio Access Network
  • the terminal device can be a mobile terminal, such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal.
  • it can be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device. Exchange voice and/or data with wireless access network.
  • Terminal equipment can also be called Subscriber Unit, Subscriber Station, Mobile Station, Mobile Station, Remote Station, Access Point, and Remote The terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent) or user equipment (User Equipment) are not limited here.
  • the network equipment involved in this application can be a base station (BTS) in Global System of Mobile Communications (GSM) or Code Division Multiple Access (CDMA), or it can be
  • BTS Global System of Mobile Communications
  • CDMA Code Division Multiple Access
  • NodeB, NB Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • eLTE Enhanced Long Term Evolution
  • ng-eNB next generation-evolved NodeB
  • AP access point
  • WLAN wireless local area network
  • FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of this application.
  • the technical solution provided by this application is based on the network architecture shown in FIG. 1.
  • the network architecture includes at least one terminal device 10 that communicates with the network device 20 through a wireless interface. For clarity, only one terminal device and one network device are shown in FIG. 1.
  • the terminal device can use Discontinuous Reception (DRX) in the sleep state RRC_IDLE and the inactive state RRC_INACTIVE to reduce power consumption.
  • the terminal device listens to a paging occasion (PO) in each DRX cycle. Since NR introduces the operation of beam management, the length of a PO is a beam scanning period, and the network device needs to send the same paging message in all beam directions of the scanning mode. The selection of the beam used to receive the paging message depends on the UE. If the network equipment needs to repeatedly send paging messages in each beam direction, the above solution will cause serious downlink resource overhead.
  • DRX Discontinuous Reception
  • PO paging occasion
  • Fig. 2 is a schematic flowchart of an embodiment of a downlink beam indication method provided by the present application. As shown in Figures 2 and 3, the method provided in this embodiment includes:
  • Step 201 The terminal device determines a reporting time for reporting the current indication information, and the current indication information is used by the network device to determine the downlink beam direction for sending a paging message.
  • the terminal device is required to determine the reporting timing, and the instruction information is reported at the reporting timing without entering the connection through the random access process.
  • the downlink beam direction indicated in the current indication information is that the terminal device determines the downlink beam direction with better signal quality according to its own measurement results.
  • the reporting timing may be determined based on the paging timing, or based on a preset reporting period, or may also be determined based on the transmission timing of the pre-configured resources in the Preconfigured Resources (Preconfigured UL Resources, referred to as PUR) mechanism.
  • PUR Preconfigured UL Resources
  • Step 202 The terminal device reports the current indication information to the network device at the reporting time.
  • the terminal device reports the current indication information to the network device at the reporting timing, and the network device determines the downlink beam direction for sending the paging message according to the current indication information, and sends the paging message in the downlink beam direction. Call the news.
  • the terminal device determines the reporting timing of the indication information.
  • the indication information is used to report the downlink beam direction for sending the paging message.
  • the network device can obtain the downlink beam direction corresponding to the terminal device through the indication information reported by the terminal device.
  • the device only needs to send paging messages in the downlink beam direction reported by the terminal device, which avoids the need for network devices in related technologies to send the same paging message in each beam direction, thereby saving resource overhead.
  • the terminal device determines the reporting timing according to the preset offset between the reporting timing and the first paging timing in the at least one associated paging timing.
  • Each reporting occasion can be associated with one or more paging occasions PO.
  • the terminal device associated with a PO reports the downlink beam direction with better signal quality at the reporting time corresponding to the PO according to the measurement results of the terminal device itself.
  • the network device only needs to send paging messages in the downlink beam direction reported by the terminal device.
  • the reporting timing can be determined by the preset offset between the first PO in the PO associated with it.
  • Associated POs refer to these associated POs, and the network device can send paging messages in the downlink beam direction determined by the indication information reported by the reporting time.
  • the number of associated POs can be configured by the network device to the UE. The network device only needs to send a paging message according to the downlink beam direction indicated by the last received indication information.
  • the terminal device can determine the location of the reporting opportunity through the offset and the associated first paging occasion.
  • the reporting time is before the first paging time.
  • One reporting opportunity corresponds to a specific uplink time-frequency resource configuration. That is, the terminal device uses the pre-configured uplink time-frequency resource to report the current indication information to the network device at the reporting time.
  • the terminal device determines the reporting timing according to a preset reporting period of the indication information.
  • the terminal device obtains the time-frequency resource of any indication information before the current indication information
  • the terminal device determines the reporting timing according to the reporting timing of any indication information and the reporting period of the indication information.
  • a periodic and terminal equipment-level reporting timing is introduced (assuming the reporting period is T).
  • the UE uses the periodic reporting timing, and the periodic reporting includes the corresponding downlink beam direction with better signal quality. Instructions.
  • the reporting period may be greater than or equal to the discontinuous reception DRX period.
  • the terminal device may determine it according to the reporting timing of the previous indication information and the reporting period, and the interval between two adjacent indication information is the reporting period.
  • One reporting opportunity corresponds to a specific uplink time-frequency resource configuration. That is, the terminal device uses the pre-configured uplink time-frequency resource to report the current indication information to the network device at the reporting time.
  • the terminal device determines the reporting timing according to the sending timing of the uplink pre-configured resource PUR.
  • the terminal device uses the transmission timing of the Nth PUR as the reporting timing; N is greater than 1. Integer.
  • the terminal device can send indication information through the PUR to indicate the downlink beam direction.
  • the pre-configured resource PUR mechanism that is, pre-configured periodic uplink resources for sending uplink data in the idle state
  • the PUR cycle may be shorter than the DRX cycle. If the indication information is sent in each PUR cycle, the signaling overhead will increase. Therefore, according to the state of the terminal device, for example, the moving speed of the terminal device, it can be determined whether the sending instruction information is sent in each PUR cycle or sent at intervals of a certain number of PUR cycles. For example, when the moving speed of the terminal device is fast, the indication information needs to be sent every PUR cycle. If the moving speed of the terminal device is slow or the terminal device keeps the position unchanged, the indication information can be sent at intervals of a certain number of PUR cycles.
  • the terminal device determines whether the terminal device has not sent uplink data on N-1 consecutive PURs according to the count value of the timer; the timer is after the terminal device sends uplink data using the PUR When restarted, the timer increases the count value by one when the terminal device does not send uplink data in the PUR, and the initial count value of the counter is zero.
  • a timer can be introduced, and the terminal device restarts the timer after sending the uplink data using the PUR, that is, the count value of the timer is cleared, that is, if the terminal device does not send in N-1 consecutive PUR If the upstream data is passed, the terminal equipment will report the instruction information in the next PUR
  • the upstream data (including indication information) is also sent on the first PUR on the left, the timer is restarted again, and the count value of the timer is cleared. If the second PUR on the left also sends uplink data (including indication information), the timer is restarted again, and the count value of the timer is cleared.
  • the count value is increased by one; when the next PUR does not send uplink data, the count value is increased by one; when the next PUR does not send uplink data, the count value is increased by one, and the count value is 3.
  • indication information needs to be sent on the next PUR to indicate the direction of the downlink beam.
  • the terminal device uses the Nth PUR at the reporting occasion to report the current indication information to the network device.
  • the indication information it is not necessary to send the indication information after entering the connected state through the random access process. It only needs to report the indication information at the reporting time determined according to the PO or the reporting period determined according to the reporting period, or according to the reporting time determined by the PUR. It will not greatly increase the RRC signaling overhead and the energy consumption of the terminal equipment, and at the same time avoid the delay of data transmission.
  • FIG. 7 is a schematic flowchart of another embodiment of the downlink beam indication method provided by the present application. As shown in Figure 7 and Figure 3, the method provided in this embodiment includes:
  • Step 701 The network device receives the current indication information sent by the terminal device at the reporting time.
  • Step 701 The network device determines the downlink beam direction for sending the paging message according to the current indication information, and sends the paging message to the terminal device in the downlink beam direction.
  • the reporting timing is determined by the terminal device according to a preset offset between the reporting timing and the first paging timing in the associated at least one paging timing; or,
  • the reporting timing is determined by the terminal device according to the reporting period of the indication information.
  • the reporting timing is determined by the terminal device according to the sending timing of the pre-configured resource PUR.
  • FIG. 8 is a structural diagram of an embodiment of a terminal device provided by this application. As shown in FIG. 8, the terminal device includes:
  • a communication interface 803 which is used to implement communication with other devices.
  • the above components can communicate via one or more buses.
  • the processor 801 is configured to execute by executing the executable instructions:
  • Determining a reporting time for reporting current indication information where the current indication information is used by the network device to determine a downlink beam direction for sending a paging message
  • the processor 801 is configured to:
  • the reporting period is greater than or equal to the discontinuous reception DRX period.
  • the processor 801 is configured to:
  • the processor 801 is configured to:
  • the reporting timing is determined according to the transmission timing of the uplink pre-configured resource PUR.
  • the processor 801 is configured to:
  • the sending timing of the Nth PUR is used as the reporting timing; N is an integer greater than 1.
  • the processor 801 is configured to:
  • the timer determines whether the terminal device has not sent uplink data on N-1 consecutive PURs; the timer is restarted by the terminal device after the terminal device uses the PUR to send uplink data The timer adds one to the count value when the terminal device does not send uplink data in one PUR, and the initial count value of the counter is zero.
  • the processor 801 is configured to:
  • the terminal device of this embodiment may be used to execute the corresponding method in the foregoing method embodiment, and for the specific implementation process, refer to the foregoing method embodiment, which will not be repeated here.
  • Fig. 9 is a structural diagram of an embodiment of a network device provided by this application. As shown in Fig. 9, the network device includes:
  • a communication interface 903 which is used to implement communication with other devices.
  • the above components can communicate via one or more buses.
  • the processor 901 is configured to execute the corresponding method in the foregoing method embodiment by executing the executable instruction.
  • the executable instruction For the specific implementation process, please refer to the foregoing method embodiment, which will not be repeated here.
  • the embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored.
  • a computer program is stored on which a computer program is stored.
  • the computer program is executed by a processor, the corresponding method in the foregoing method embodiment is implemented.
  • the specific implementation process please refer to the foregoing method implementation.
  • the implementation principles and technical effects are similar, so I won’t repeat them here.
  • the embodiment of the present application also provides a program, when the program is executed by the processor, it is used to execute the technical solution in any of the foregoing method embodiments.
  • the foregoing processor may be a chip.
  • the embodiments of the present application also provide a computer program product, including program instructions, which are used to implement the technical solutions in any of the foregoing method embodiments.
  • An embodiment of the present application also provides a chip, including: a processing module and a communication interface, and the processing module can execute the technical solution in any of the foregoing method embodiments.
  • the chip also includes a storage module (such as a memory), the storage module is used to store instructions, the processing module is used to execute the instructions stored in the storage module, and the execution of the instructions stored in the storage module causes the processing module to execute any of the foregoing The technical solution in the method embodiment.
  • a storage module such as a memory
  • the storage module is used to store instructions
  • the processing module is used to execute the instructions stored in the storage module
  • the execution of the instructions stored in the storage module causes the processing module to execute any of the foregoing The technical solution in the method embodiment.

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

Abstract

La présente invention concerne un procédé d'indication de faisceau de liaison descendante, un dispositif et un support de stockage. Le procédé comprend les étapes suivantes : un dispositif terminal détermine une opportunité de rapport pour rapporter les informations d'indication actuelles, les informations d'indication actuelles étant utilisées pour un dispositif de réseau pour déterminer une direction de faisceau de liaison descendante pour envoyer un message de radiomessagerie ; le dispositif de terminal rapporte les informations d'indication actuelles au dispositif de réseau lors de l'opportunité de rapport. Selon le procédé, le dispositif terminal a rapporté la direction de faisceau de liaison descendante du message de radiomessagerie au dispositif de réseau, et par conséquent, le dispositif de réseau doit simplement envoyer le message de radiomessagerie dans la direction de faisceau de liaison descendante rapportée, de telle sorte que des surcharges de ressources peuvent être réduites.
PCT/CN2020/109249 2019-08-16 2020-08-14 Procédé d'indication de faisceau de liaison descendante, dispositif et support de stockage Ceased WO2021032006A1 (fr)

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