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WO2024212157A1 - Procédé et appareil de transmission d'informations de liaison descendante, et support d'enregistrement lisible - Google Patents

Procédé et appareil de transmission d'informations de liaison descendante, et support d'enregistrement lisible Download PDF

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Publication number
WO2024212157A1
WO2024212157A1 PCT/CN2023/088022 CN2023088022W WO2024212157A1 WO 2024212157 A1 WO2024212157 A1 WO 2024212157A1 CN 2023088022 W CN2023088022 W CN 2023088022W WO 2024212157 A1 WO2024212157 A1 WO 2024212157A1
Authority
WO
WIPO (PCT)
Prior art keywords
network device
user equipment
carrier
period
downlink information
Prior art date
Application number
PCT/CN2023/088022
Other languages
English (en)
Chinese (zh)
Inventor
付婷
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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/CN2023/088022 priority Critical patent/WO2024212157A1/fr
Priority to CN202380009083.8A priority patent/CN116830678A/zh
Publication of WO2024212157A1 publication Critical patent/WO2024212157A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Definitions

  • the present disclosure relates to the field of wireless communication technology, and in particular to a method, device and readable storage medium for transmitting downlink information.
  • Network energy saving is one of the topics in Release 18 (R18) of the 3rd Generation Partnership Project (3GPP).
  • the network energy saving project aims to study technologies to reduce the energy consumption of network equipment.
  • One possible way to save energy is the discontinuous reception (DRX) mechanism of cell base stations.
  • DRX discontinuous reception
  • the base station does not receive part or all of the uplink information on the cell within a specific period of time to achieve network energy saving.
  • R15 defines the Connected Discontinuous Reception (C-DRX) mechanism in the connected state of User Equipment (UE).
  • C-DRX Connected Discontinuous Reception
  • the UE may not monitor the Physical Downlink Control Channel (PDCCH) during a specific period of time to achieve UE energy saving.
  • PDCCH Physical Downlink Control Channel
  • the present disclosure provides a method, an apparatus and a readable storage medium for transmitting downlink information.
  • the present disclosure provides a method for receiving downlink information, which is performed by a user equipment, and the method includes:
  • determining whether to monitor and/or receive downlink information sent by the network device according to a period of the DRX cycle of the first carrier in which the network device is located includes:
  • the network device During the period when the SR is in the SR pending state and the network device is in the first time period of the DRX cycle on the first carrier, it is determined not to monitor and/or not to receive the downlink information sent by the network device; wherein the first time period is a time period when the network device does not receive at least part of the uplink information.
  • the SR is one of the following:
  • determining whether to monitor and/or receive downlink information sent by the network device according to a period of the DRX cycle of the first carrier in which the network device is located includes:
  • the second time period is a time period during which the network device receives uplink information.
  • the SR is at least one of the following:
  • the SR of the first priority is at least one of the following:
  • the SR defined by the protocol or configured by the network device.
  • the user equipment when sending a scheduling request SR to a network device on the first carrier, the user equipment is in a third time period or a fourth time period of a C-DRX cycle;
  • the third time period is a time period during which the user equipment does not receive at least part of the downlink information
  • the fourth time period is a time period during which the user equipment receives downlink information.
  • the present disclosure provides a method for sending downlink information, which is performed by a network device, and the method includes:
  • determining whether to receive an SR sent by a user equipment on the first carrier according to a period of a DRX cycle on the first carrier includes:
  • the network device is in a first time period of the DRX cycle on the first carrier, and determines not to receive the SR sent by the user equipment on the first carrier; wherein the first time period is a time period during which the network device does not receive at least part of the uplink information.
  • determining whether to send downlink information to the user equipment during the period when the SR is in the SR pending state includes:
  • the SR is one of the following:
  • determining whether to receive an SR sent by a user equipment on the first carrier according to a period of a DRX cycle on the first carrier includes:
  • the network device is in the second time period of the DRX cycle on the first carrier, and determines to receive the SR sent by the user equipment on the first carrier; wherein the second time period is a time period for the network device to receive uplink information.
  • the determining whether to send downlink information to the user equipment during the period when the SR is in the SR pending state includes:
  • the SR is at least one of the following:
  • the SR of the first priority is at least one of the following:
  • the SR defined by the protocol or configured by the network device.
  • the user equipment is in a third period or a fourth period of a C-DRX cycle
  • the third time period is a time period during which the user equipment does not receive at least part of the downlink information
  • the fourth time period is a time period during which the user equipment receives downlink information.
  • the present disclosure provides an apparatus for receiving downlink information, which may be used to execute the steps performed by a user equipment in the first aspect or any possible design of the first aspect.
  • the user equipment may implement the functions of the above methods in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • the device may include a transceiver module and a processing module coupled to each other, wherein the transceiver module can be used to support the communication device to communicate, and the processing module can be used to support the communication device to perform processing operations, such as generating a signal/information to be sent.
  • the transceiver module is configured to send a scheduling request SR to the network device on the first carrier; wherein the user equipment is configured with a connected discontinuous reception C-DRX cycle, and the network device is configured with a DRX cycle on the first carrier;
  • the processing module is configured to determine whether to monitor and/or receive downlink information sent by the network device according to the time period of the DRX cycle of the network device in the first carrier during the period when the SR is in the SR pending state.
  • the present disclosure provides a device for sending downlink information, which can be used to execute the steps performed by a network device in the second aspect or any possible design of the second aspect.
  • the network device can implement each function in the above methods in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • the device may include a processing module, wherein the processing module can be used to support the communication device to perform processing operations, such as generating a signal/information to be sent.
  • the processing module is configured to determine whether to receive the SR sent by the user equipment on the first carrier according to the period of the DRX cycle on the first carrier; wherein the network device is configured with a DRX cycle on the first carrier, and the user equipment is configured with a connected discontinuous reception C-DRX cycle;
  • the processing module is also configured to determine whether to send downlink information to the user equipment while the SR is in the SR pending state.
  • the present disclosure provides a user equipment, comprising a processor and a memory; the memory is used to store a computer program; the processor is used to execute the computer program to implement the first aspect or any one of the first aspect. possible designs.
  • the present disclosure provides a network device, comprising a processor and a memory; the memory is used to store a computer program; the processor is used to execute the computer program to implement the second aspect or any possible design of the second aspect.
  • the present disclosure provides a computer-readable storage medium, which stores instructions (or computer programs, programs), which, when called and executed on a computer, enable the computer to execute the above-mentioned first aspect or any possible design of the first aspect.
  • the present disclosure provides a computer-readable storage medium, in which instructions (or computer programs, programs) are stored.
  • instructions or computer programs, programs
  • the computer executes the above-mentioned second aspect or any possible design of the second aspect.
  • FIG1 is a schematic diagram of a wireless communication system architecture provided by an embodiment of the present disclosure.
  • FIG2a is an interactive flow chart of a method for transmitting downlink information according to an exemplary embodiment
  • FIG2b is an interactive flow chart of a method for transmitting downlink information according to an exemplary embodiment
  • FIG3 is a schematic diagram showing a C-DRX time domain configuration according to an exemplary embodiment
  • FIG4a is a flow chart of a method for receiving downlink information according to an exemplary embodiment
  • FIG4b is a flow chart of a method for receiving downlink information according to an exemplary embodiment
  • FIG4c is a flow chart of a method for receiving downlink information according to an exemplary embodiment
  • FIG5a is a flow chart of a method for sending downlink information according to another exemplary embodiment
  • FIG5b is a flow chart of a method for sending downlink information according to another exemplary embodiment
  • FIG5c is a flow chart of a method for sending downlink information according to another exemplary embodiment
  • FIG6 is a block diagram of a device for receiving downlink information according to an exemplary embodiment
  • FIG7 is a block diagram of a user equipment according to an exemplary embodiment
  • FIG8 is a block diagram of a device for sending downlink information according to an exemplary embodiment
  • Fig. 9 is a block diagram of a network device according to an exemplary embodiment.
  • first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • 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 words "if” and “if” as used herein may be interpreted as “at” or "when” or "in response to determination".
  • a method for transmitting downlink information may be applied to a wireless communication system 100, which may include a user equipment 101 and a network device 102.
  • the user equipment 101 is configured to support carrier aggregation and may be connected to multiple carrier components of the network device 102, including a primary carrier component and one or more secondary carrier components.
  • wireless communication system 100 can be applied to both low-frequency scenarios and high-frequency scenarios.
  • Application scenarios of the wireless communication system 100 include, but are not limited to, long-term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, worldwide interoperability for microwave access (WiMAX) communication systems, cloud radio access network (CRAN) systems, future fifth-generation (5G) systems, new radio (NR) communication systems, or future evolved public land mobile network (PLMN) systems.
  • LTE long-term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • WiMAX worldwide interoperability for microwave access
  • CDRAN cloud radio access network
  • 5G fifth-generation
  • NR new radio
  • PLMN future evolved public land mobile network
  • the user equipment 101 shown above may be a terminal, an access terminal, a terminal unit, a terminal station, a mobile station (MS), a remote station, a remote terminal, a mobile terminal, a wireless communication device, a terminal agent or a terminal device, etc.
  • the user equipment 101 may have a wireless transceiver function, and it can communicate with one or more network devices of one or more communication systems (such as wireless communication) and receive network services provided by the network devices, where the network devices include but are not limited to the network device 102 shown in the figure.
  • the user equipment 101 may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network, or a future evolved PLMN. Terminal equipment in the network, etc.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • the network device 102 may be an access network device (or access network point).
  • the access network device refers to a device that provides network access functions, such as a radio access network (RAN) base station, etc.
  • the network device 102 may specifically include a base station (BS), or a base station and a wireless resource management device for controlling the base station, etc.
  • the network device 102 may also include a relay station (relay device), an access point, a base station in a future 5G network, a base station in a future evolved PLMN network, or an NR base station, etc.
  • the network device 102 may be a wearable device or a vehicle-mounted device.
  • the network device 102 may also be a communication chip with a communication module.
  • the network device 102 includes, but is not limited to, a next-generation base station (gnodeB, gNB) in 5G, an evolved node B (evolved node B, eNB) in an LTE system, a radio network controller (radio network controller, RNC), a node B (node B, NB) in a WCDMA system, a wireless controller under a CRAN system, a base station controller (basestation controller, BSC), a base transceiver station (base transceiver station, BTS) in a GSM system or a CDMA system, a home base station (for example, home evolved nodeB, or home node B, HNB), a baseband unit (baseband unit, BBU), a transmitting point (transmitting and receiving point, TRP), a transmitting point (transmitting point, TP) or a mobile switching center, etc.
  • a next-generation base station gNB
  • eNB evolved node B
  • RNC radio network controller
  • the user equipment 101 is configured with a C-DRX cycle and the network equipment 102 is configured with a cell DRX cycle, it is necessary to determine whether the user equipment 101 needs to be in an active time.
  • FIG. 2a shows a method for transmitting downlink information according to an exemplary embodiment. As shown in FIG. 2a, the method includes steps S2101 to S2104, specifically:
  • Step S2101 user equipment 101 sends a scheduling request (SR) to network equipment 102 on the first carrier.
  • SR scheduling request
  • the user equipment 101 is configured with a connected discontinuous reception C-DRX cycle.
  • a period when the user equipment 101 does not monitor some downlink information such as PDCCH is a non-active time of C-DRX; a period when the user equipment 101 normally monitors downlink information such as PDCCH is an active time of C-DRX.
  • the user equipment 101 may be configured with periodic C-DRX, where a C-DRX cycle includes a third period or sleep period (off duration), and a fourth period or working period (on duration).
  • the network device 102 may configure the time domain parameters of C-DRX, such as at least one of the parameters such as the C-DRX cycle, the duration of the C-DRX sleep period, and the duration of the C-DRX working period.
  • the user equipment 101 monitors downlink information such as PDCCH; after the working period ends or the sleep period starts, the user equipment 101 can enter the sleep state without monitoring some downlink information such as PDCCH, so as to achieve the effect of UE energy saving by controlling the user equipment 101 to reduce unnecessary PDCCH monitoring.
  • the C-DRX cycle is longer.
  • C-DRX also includes multiple short cycles appearing in the long cycle. The user equipment 101 monitors downlink information according to the configured C-DRX working period.
  • the short-cycle C- After DRX is started, after the short cycle timer (drx-ShortCycleTimer) times out, the user equipment 101 monitors downlink information according to the long cycle C-DRX.
  • the C-DRX working period of the user equipment 101 belongs to a scenario of the activation period.
  • the above downlink information may include but is not limited to a downlink channel or a downlink signal, such as PDCCH.
  • the user equipment 101 may be in an activation period in at least one of the following scenarios:
  • the retransmission timer (drx-RetransmissionTimerUL) corresponding to the uplink HARQ process is running.
  • the timer corresponding to the working period of C-DRX is drx-onDurationTimer. Every time the working period is reached, the timer will start, and when the timer ends, it indicates that the working period has ended.
  • the timer drx-InactivityTimer is started each time the user equipment 101 receives downlink control information (Downlink Control Information, DCI) for scheduling new uplink or downlink data, and is used to indicate the duration after receiving the new transmission data.
  • DCI Downlink Control Information
  • the timer drx-RetransmissionTimerDL is used for downlink HARQ processes other than broadcasting, and is used to indicate the maximum duration from receiving data of the process to receiving downlink retransmission of the process.
  • the timer drx-RetransmissionTimerU is used for the uplink HARQ process and is used to indicate the maximum duration from the receipt of data of the process to the receipt of uplink data for uplink retransmission of the process.
  • Each DL HARQ process has a corresponding drx-HARQ-RTT-TimerDL timer. If the drx-HARQ-RTT-TimerDL timer does not end, the corresponding HARQ process will not be used for retransmission.
  • the drx-HARQ-RTT-TimerDL timer corresponding to the DL HARQ process ends and the user equipment 101 feedbacks NACK, it indicates that the network device 102 needs to retransmit data.
  • the timer drx-RetransmissionTimerDL will be started.
  • the user equipment 101 needs to monitor the retransmission data DCI corresponding to the DL HARQ process and the new transmission data DCI of other DL HARQ processes.
  • the user equipment 101 will start the drx-RetransmissionTimerUL to monitor the PDCCH during the operation period of the drx-RetransmissionTimerUL to obtain possible uplink data retransmission scheduling.
  • the user equipment 101 monitors the PDCCH during the operation period of the drx-RetransmissionTimerUL, and receives the DCI of the data to be retransmitted, and the user equipment 101 will retransmit the data; if the DCI of the new data is received, the user equipment 101 does not need to retransmit the data.
  • the SR may be used to request uplink resources.
  • the user equipment 101 may send an SR on a physical uplink control channel (PUCCH).
  • PUCCH physical uplink control channel
  • Step S2102 When the network device 102 is in the second period of the DRX cycle on the first carrier, the network device 102 An SR sent by the user equipment 101 on the first carrier is received.
  • the network device 102 is configured with a DRX cycle on the first carrier.
  • the DRX cycle includes a first period and a second period.
  • the period during which the network device 102 does not monitor part or all of the uplink information is the first period of DRX, or the DRX-Off period; for example, the network device 102 does not monitor the SR during the DRX-Off period.
  • the period during which the network device 102 normally monitors and receives uplink information is the second period of DRX, or the DRX-On period.
  • the network device 102 configures whether to support the DRX function on any carrier in units of carriers (per CC), that is, cell DRX. For example, among the multiple carriers corresponding to the network device 102, a DRX cycle is configured on the first carrier among the multiple carriers.
  • the network device 102 monitors uplink information during the DRX-On period on the first carrier, and does not monitor part or all of the uplink information during the DRX-Off period on a carrier.
  • the uplink information may include but is not limited to an uplink channel or an uplink signal, such as PUCCH.
  • the network device 102 when the network device 102 is not in the first period of DRX on the first carrier, such as in the second period of DRX, the network device 102 receives the SR sent by the user equipment 101 on the first carrier.
  • the SR sent by the user equipment 101 may be a first priority SR and/or a SR for beam failure recovery (BFR).
  • the network device 102 when the SR is a first priority SR and/or a SR for BFR, the network device 102 receives the SR sent by the user equipment 101 on the first carrier regardless of whether it is in the first period of DRX. This example can be seen in the relevant implementation in Figure 2b.
  • the first priority may be a high priority.
  • SRs of different priorities may be configured by the network device 102 or defined by a protocol, for example, the network device 102 configures a SR of the first priority.
  • the SR of the first priority is: an SR corresponding to a preset service or a preset type of service.
  • the network device 102 may configure a preset service or a preset type of service according to the urgency of the service.
  • the preset service is a service with a high urgency
  • the preset type of service includes multiple services with a high urgency.
  • the SR corresponding to the preset service or the preset type of service is a first priority SR, and the first priority SR will be received or processed first compared to services with a normal or low urgency.
  • the network device 102 may determine whether the SR is a first-priority SR according to the time-frequency position, or determine whether the SR is a SR for BFR according to the time-frequency position.
  • the network device 102 can obtain the priority of the SR to be received according to the time-frequency resource position occupied by the SR.
  • Step S2103 while the SR is in the SR pending state, the network device 102 sends downlink information to the user device 101.
  • the SR is in the SR pending state. For example, when the uplink resources are sufficient for the UE to process the pending data, the user equipment 101 may cancel the pending SR.
  • the network device 102 when the first condition is met, the network device 102 will normally receive the SR, and normally schedule the user equipment 101 to send downlink information.
  • Step S2104 the user equipment 101 monitors and/or receives downlink information sent by the network equipment 102 .
  • the user equipment 101 monitors and receives downlink information, that is, the user equipment 101 is in an activation period.
  • the user equipment 101 even if the activation period is within the C-DRX sleep period of the user equipment 101 , the user equipment 101 still needs to monitor downlink information, such as monitoring the PDCCH.
  • the timing when the user equipment 101 is in an activation period in the embodiment of the present disclosure may be applicable to the cell group.
  • the user equipment 101 configured with the C-DRX cycle determines whether to monitor the downlink information according to the period of the DRX cycle in which the network device 102 is located.
  • the network device 102 is in the second period, it can enter the activation period at an appropriate time on the basis of using C-DRX to achieve energy saving, so as to monitor the downlink information in time to ensure the communication effect.
  • FIG. 2b shows a method for transmitting downlink information according to an exemplary embodiment. As shown in FIG. 2b , the method includes steps S2201 to S2204, specifically:
  • Step S2201 User equipment 101 sends an SR to network equipment 102 on a first carrier.
  • step S2201 may refer to the related implementation of step S2101 in FIG. 2a , which will not be described in detail here.
  • the user equipment 101 is configured with a connected discontinuous reception C-DRX cycle
  • the network device 102 is configured with a DRX cycle on the first carrier.
  • Step S2202 The network device 102 is in the first period of the DRX cycle on the first carrier, and the network device 102 does not receive the SR sent by the user equipment 101 on the first carrier.
  • step S2202 can refer to the related implementation of step S2102 in Figure 2a, which will not be repeated here.
  • the first time period is a time period during which the network device 102 does not receive at least part of the uplink information.
  • the SR not received is: a non-first priority SR.
  • the network device 102 in the first period may not receive the SR.
  • the network device 102 in the first time period still receives the SR of the first priority.
  • the SR not received is: an SR not for BFR.
  • the network device 102 in the first period may not receive the SR.
  • the network equipment 102 in the first period is still The SR for BFR is received.
  • the SR that is not received is: an SR that is not of the first priority and is not used for BFR. For example, if the SR sent by the user equipment 101 is neither an SR of the first priority nor an SR used for BFR, the network device 102 in the first period may not receive the SR.
  • the SR of the first priority may be configured by the network device 102 or defined by a protocol.
  • the first priority indicates a high priority.
  • the SR of the first priority is: an SR corresponding to a preset service or a preset type of service.
  • the network device 102 may configure a preset service or a preset type of service according to the urgency of the service.
  • the preset service is a service with a high urgency
  • the preset type of service includes multiple services with a high urgency.
  • the SR corresponding to the preset service or the preset type of service is a first priority SR, and the first priority SR will be received or processed first compared to services with a normal or low urgency.
  • Step S2203 while SR is in the SR pending state, the network device 102 does not send downlink information.
  • the network device 102 when the network device 102 is in the first period of DRX on the first carrier, it does not receive uplink information, such as not receiving SR; and does not perform uplink resource scheduling, such as not sending PDCCH.
  • Step S2204 the user equipment 101 does not monitor and/or does not receive the downlink information sent by the network equipment 102 .
  • the user equipment 101 does not monitor at least part of the downlink information, that is, the user equipment 101 does not need to enter the activation period, that is, it can remain in the sleep state.
  • the user equipment 101 may keep not monitoring the downlink information to achieve energy saving.
  • the user equipment 101 may not monitor the PDCCH, or not monitor all downlink information.
  • step S2204 none of the relevant timers described in step S2101 are in running state.
  • the user equipment 101 configured with the C-DRX cycle determines whether to monitor the downlink information according to the period of the DRX cycle in which the network device 102 is located.
  • the network device 102 is in the first period, the user equipment 101 will not enter the active period due to sending the SR, so that the energy saving effect of the UE can continue to be maintained.
  • FIG. 4a shows a method for receiving downlink information according to an exemplary embodiment. As shown in FIG. 4a, the method includes steps S4101 to S4102, specifically:
  • Step S4101 User equipment 101 sends a scheduling request SR to network equipment 102 on a first carrier.
  • the user equipment 101 is configured with a connected discontinuous reception C-DRX cycle.
  • a period when the user equipment 101 does not monitor some downlink information such as PDCCH is a C-DRX inactive period; a period when the user equipment 101 normally monitors downlink information such as PDCCH is a C-DRX active period.
  • a C-DRX cycle includes: a third period or sleep period (off duration), and a fourth period or working period (on duration).
  • the network device 102 can configure the time domain parameters of C-DRX, such as at least one of the parameters such as the C-DRX cycle, the duration of the C-DRX sleep period, and the duration of the C-DRX working period.
  • the user equipment 101 is in the activation period.
  • the network device 102 is configured with a DRX cycle on the first carrier.
  • the DRX cycle includes a first period and a second period.
  • the period during which the network device 102 does not monitor part or all of the uplink information is the first period of DRX, or the DRX-Off period; for example, the network device 102 does not monitor the SR during the DRX-Off period.
  • the period during which the network device 102 normally monitors and receives uplink information is the second period of DRX, or the DRX-On period.
  • the SR may be used to request uplink resources.
  • the user equipment 101 may send the SR on the PUCCH.
  • the user equipment 101 when the user equipment 101 sends a scheduling request SR to the network device 102 on the first carrier, the user equipment 101 is in the third time period or the fourth time period of the C-DRX cycle; wherein the third time period is a time period in which the user equipment 101 does not receive at least part of the downlink information, and the fourth time period is a time period in which the user equipment 101 receives downlink information.
  • step S4101 may also refer to the related implementations of steps S2101 to S2102 in FIG. 2a and steps S2201 to S2202 in FIG. 2b , which are not fully described here.
  • Step S4102 while the SR is in the SR pending state, the user equipment 101 determines whether to monitor and/or receive downlink information sent by the network device 102 according to the time period of the DRX cycle of the first carrier in which the network device 102 is located.
  • the SR is in the SR pending state.
  • the user equipment 101 determines that it needs to monitor downlink information.
  • the network device 102 is in a first period of DRX on the first carrier, and the user equipment 101 determines not to monitor downlink information.
  • the first time period is a time period during which the network device 102 does not receive at least part of the uplink information
  • the second time period is a time period during which the network device 102 normally receives the uplink information
  • the network device 102 when the network device 102 is in the second period of DRX, it can normally receive uplink information, such as SR.
  • the network device 102 may not receive the PUCCH or all uplink information in the first time period, for example, not receive the SR sent by the user equipment 101.
  • the user equipment 101 after sending SR, the user equipment 101 configured with the C-DRX cycle determines whether to monitor downlink information according to the DRX period of the network device 102. Thus, the user equipment 101 can monitor downlink information at an appropriate time or maintain an energy-saving state.
  • FIG. 4b shows a method for receiving downlink information according to an exemplary embodiment. As shown in FIG. 4b, the method includes The method includes steps S4201 to S4202, specifically:
  • Step S4201 User equipment 101 sends a scheduling request SR to network equipment 102 on a first carrier.
  • step S4201 may refer to related implementations of steps S2101 to S2102 in FIG. 2a , steps S2201 to S2202 in FIG. 2b , and step S4101 in FIG. 4a , which will not be described in detail here.
  • Step S4202 while the SR is in the SR pending state and the network device 102 is in the first period of the DRX cycle on the first carrier, the user equipment 101 determines not to monitor and/or receive downlink information sent by the network device 102.
  • the first time period is a time period during which the network device 102 does not receive at least part of the uplink information.
  • step S4202 may refer to the related implementations of steps S2202 to S2204 in FIG. 2b , which will not be described in detail here.
  • the network device 102 when the network device 102 is in the first time period on the first carrier, the network device 102 may not monitor the SR of the user equipment 101, and thus will not schedule uplink resources.
  • the user equipment 101 may not monitor part or all of the downlink information, such as not monitoring the PDCCH.
  • the user equipment 101 when the user equipment 101 sends a scheduling request SR to the network device 102 on the first carrier, the user equipment 101 is in the third time period or the fourth time period of the C-DRX cycle; wherein the third time period is a time period in which the user equipment 101 does not receive at least part of the downlink information, and the fourth time period is a time period in which the user equipment 101 receives downlink information.
  • the user equipment 101 may be in the third period of C-DRX, ie, the sleep period. At this time, the user equipment 101 will not be switched to the active period due to sending the SR, but may continue to maintain energy saving.
  • the SR sent by the user equipment 101 is one of the following:
  • the SR does not include the SR of the first priority and/or the SR for BFR.
  • the user equipment 101 needs to enter the activation period after sending the SR.
  • the network device 102 will receive the first priority SR and/or the SR for BFR. For example, if the network device 102 is in the first period, it will also receive the first priority SR and/or the SR for BFR and perform uplink resource scheduling. At this time, the user equipment 101 needs to monitor downlink information, such as PDCCH.
  • the SR of the first priority may be configured by the network device 102 or defined by a protocol.
  • the first priority indicates a high priority.
  • the SR of the first priority is: an SR corresponding to a preset service or a preset type of service.
  • the network device 102 may configure a preset service or a preset type of service according to the service urgency.
  • the preset service is a service with a high urgency
  • the preset type of service includes multiple services with a high urgency.
  • the SR corresponding to the preset service or the preset type of service is a first-priority SR. Compared with services with a normal or low urgency, the first SRs with higher priorities will be received or processed first.
  • the user equipment 101 configured with the C-DRX cycle determines whether to monitor the downlink information according to the period of the DRX cycle in which the network device 102 is located.
  • the network device 102 is in the first period, the user equipment 101 will not enter the active period due to sending the SR, so that the energy saving effect of the UE can continue to be maintained.
  • FIG. 4c shows a method for receiving downlink information according to an exemplary embodiment. As shown in FIG. 4c, the method includes steps S4301 to S4302, specifically:
  • Step S4301 User equipment 101 sends a scheduling request SR to network equipment 102 on a first carrier.
  • step S4301 may refer to the related implementations of steps S2101 to S2102 in FIG. 2a , steps S2201 to S2202 in FIG. 2b , and step S4101 in FIG. 4a , which will not be described in detail here.
  • Step S4302 while the SR is in the SR pending state and the network device 102 is in the second period of the DRX cycle on the first carrier, the user equipment 101 determines to monitor and/or receive downlink information sent by the network device 102.
  • the second time period is a time period during which the network device 102 receives uplink information.
  • step S4302 may refer to the related implementations of steps S2103 to S2104 in FIG. 2a , which will not be described in detail here.
  • SR is at least one of the following:
  • the user equipment 101 will enter the activation period after sending the SR on the first carrier, that is, monitor downlink information.
  • the network device 102 will receive the SR. For example, even if the network device 102 is in the first period on the first carrier, it will receive the SR and perform uplink resource scheduling.
  • the user equipment 101 monitors and/or receives downlink information sent by the network device 102 .
  • the user equipment 101 will enter the activation period after sending the SR on the first carrier, that is, monitor downlink information.
  • the network device 102 will receive the SR, for example, even if the network device 102 is in the first period on the first carrier, it will receive the SR and perform uplink resource scheduling.
  • the user equipment 101 monitors and/or receives downlink information sent by the network device 102 .
  • the SR of the first priority may be configured by the network device 102 or defined by a protocol.
  • the first priority indicates a high priority.
  • the SR of the first priority is: an SR corresponding to a preset service or a preset type of service.
  • the network device 102 may configure a preset service or a preset type of service according to the urgency of the service.
  • the preset service is a service with a higher urgency
  • the preset type of service includes multiple services with a higher urgency.
  • the SR corresponding to the preset type of service is a first-priority SR. Compared with services of ordinary or low urgency, the first-priority SR will be received or processed first.
  • the network device 102 may determine whether the SR is a first-priority SR according to the time-frequency position, or determine whether the SR is a SR for BFR according to the time-frequency position.
  • the network device 102 can obtain the priority of the SR to be received according to the time-frequency resource position occupied by the SR.
  • the network device 102 when the network device 102 is in the second time period, the network device 102 will normally receive the SR, and normally schedule the user equipment 101 to send downlink information.
  • the user equipment 101 can normally monitor and/or receive downlink information sent by the network device 102 during the SR pending state.
  • the user equipment 101 configured with the C-DRX cycle determines whether to monitor the downlink information according to the period of the DRX cycle in which the network device 102 is located.
  • the user equipment 101 can enter the activation period at an appropriate time on the basis of using C-DRX to achieve energy saving, so as to monitor the downlink information in time to ensure the communication effect.
  • FIG. 5a shows a method for sending downlink information according to an exemplary embodiment. As shown in FIG. 5a, the method includes steps S5101 to S5102, specifically:
  • Step S5101 According to the period of the DRX cycle on the first carrier, the network device 102 determines whether to receive the SR sent by the user equipment 101 on the first carrier.
  • step S5101 may refer to the related implementations of steps S2101 to S2102 in FIG. 2a and steps S2201 to S2202 in FIG. 2b , which will not be described in detail here.
  • the user equipment 101 is configured with a connected discontinuous reception C-DRX cycle.
  • the network device 102 is configured with a DRX cycle on the first carrier.
  • the network device 102 determines to receive the SR.
  • the network device 102 determines not to receive the SR.
  • the first time period is a time period during which the network device 102 does not receive at least part of the uplink information
  • the second time period is a time period during which the network device 102 normally receives the uplink information
  • the network device 102 when the network device 102 is in the second period of DRX, it can normally receive uplink information, such as SR.
  • the network device 102 may not receive the PUCCH or all uplink information in the first time period, for example, not receive the SR sent by the user equipment 101.
  • Step S5102 During the period when the SR is in the SR pending state, the network device 102 determines whether to send a request to the user device 101. Send downlink information.
  • the network device 102 determines to send downlink information.
  • the network device 102 determines not to send downlink information.
  • the network device 102 determines whether to receive SR and send downlink information according to the DRX period in which it is located, so that the user equipment 101 can monitor the downlink information at an appropriate time or maintain an energy-saving state.
  • FIG. 5b shows a method for sending downlink information according to an exemplary embodiment. As shown in FIG. 5b, the method includes steps S5201 to S5202, specifically:
  • Step S5201 the network device 102 is in the first period of the DRX cycle on the first carrier, and determines not to receive the SR sent by the user equipment 101 on the first carrier.
  • the first time period is a time period during which the network device 102 does not receive at least part of the uplink information.
  • step S5201 may refer to steps S2201 to S2202 in FIG. 2b and the related implementation of step S5101 in FIG. 5a , which will not be described in detail here.
  • the unreceived SR is one of the following:
  • the unreceived SR does not include the SR of the first priority and/or the SR for BFR.
  • the user equipment 101 needs to enter the activation period after sending the SR.
  • the network device 102 will receive the first priority SR and/or the SR for BFR. For example, if the network device 102 is in the first period, it will also receive the first priority SR and/or the SR for BFR and perform uplink resource scheduling. At this time, the user equipment 101 needs to monitor downlink information, such as PDCCH.
  • the SR of the first priority may be configured by the network device 102 or defined by a protocol.
  • the first priority indicates a high priority.
  • the SR of the first priority is: an SR corresponding to a preset service or a preset type of service.
  • the network device 102 may configure a preset service or a preset type of service according to the urgency of the service.
  • the preset service is a service with a high urgency
  • the preset type of service includes multiple services with a high urgency.
  • the SR corresponding to the preset service or the preset type of service is a first priority SR, and the first priority SR will be received or processed first compared to services with a normal or low urgency.
  • Step S5202 While the SR is in the SR pending state, the network device 102 determines not to send downlink information.
  • step S5202 may refer to the related implementations of steps S2202 to S2204 in FIG. 2b , which will not be described in detail here.
  • the network device 102 when the network device 102 is in the first time period on the first carrier, the network device 102 may not monitor the SR of the user equipment 101, and thus will not schedule uplink resources and will not send downlink information such as PDCCH.
  • the user equipment 101 may not monitor part or all of the downlink information, such as not monitoring the PDCCH.
  • the user equipment 101 when the user equipment 101 sends a scheduling request SR to the network device 102 on the first carrier, the user equipment 101 is in the third time period or the fourth time period of the C-DRX cycle; wherein the third time period is a time period in which the user equipment 101 does not receive at least part of the downlink information, and the fourth time period is a time period in which the user equipment 101 receives downlink information.
  • the user equipment 101 may be in the third period of C-DRX, ie, the sleep period. At this time, the user equipment 101 will not be switched to the active period due to sending the SR, but may continue to maintain energy saving.
  • the network device 102 does not receive the SR sent by the user equipment 101 during the first DRX period. Therefore, the user equipment 101 does not enter the active period due to sending the SR, so that the energy saving effect of the UE can continue to be maintained.
  • FIG. 5c shows a method for sending downlink information according to an exemplary embodiment. As shown in FIG. 5c, the method includes steps S5301 to S5302, specifically:
  • Step S5301 the network device 102 is in the second period of the DRX cycle on the first carrier, and determines to receive the SR sent by the user equipment 101 on the first carrier.
  • step S5301 may refer to steps S2201 to S2202 in FIG. 2b and the related implementation of step S5101 in FIG. 5a , which will not be described in detail here.
  • SR is at least one of:
  • the user equipment 101 will enter the activation period after sending the SR on the first carrier, that is, monitor downlink information.
  • the network device 102 will receive the SR. For example, even if the network device 102 is in the first period on the first carrier, it will receive the SR and perform uplink resource scheduling.
  • the user equipment 101 monitors and/or receives downlink information sent by the network device 102 .
  • the user equipment 101 will enter the activation period after sending the SR on the first carrier, that is, monitor downlink information.
  • the network device 102 will receive the SR, for example, even if the network device 102 is in the first period on the first carrier, it will receive the SR and perform uplink resource scheduling.
  • the user equipment 101 monitors and/or receives downlink information sent by the network device 102 .
  • the network device 102 when in or not in the first time period, the network device 102 receives the first priority and/or the SR for BFR sent by the user equipment 101 on the first carrier.
  • the SR of the first priority may be configured by the network device 102 or defined by a protocol.
  • the first priority indicates a high priority.
  • the SR of the first priority is: an SR corresponding to a preset service or a preset type of service.
  • the network device 102 may configure a preset service or a preset type of service according to the urgency of the service.
  • the preset service is a service with a higher urgency
  • the preset type of service includes multiple services with a higher urgency.
  • the SR corresponding to the preset service or the preset type of service is a first-priority SR, and the first-priority SR will be received or processed first compared to services with ordinary or low urgency.
  • the network device 102 may determine whether the SR is a first-priority SR according to the time-frequency position, or determine whether the SR is an SR for BFR according to the time-frequency position.
  • the network device 102 can obtain the priority of the SR to be received according to the time-frequency resource position occupied by the SR.
  • the user equipment 101 when the user equipment 101 sends a scheduling request SR to the network device 102 on the first carrier, the user equipment 101 is in the third time period or the fourth time period of the C-DRX cycle; wherein the third time period is a time period in which the user equipment 101 does not receive at least part of the downlink information, and the fourth time period is a time period in which the user equipment 101 receives downlink information.
  • the user equipment 101 may be in the third period of C-DRX, ie, the dormant period. At this time, the user equipment 101 switches to the active period after sending the SR.
  • step S5302 may refer to the related implementations of steps S2103 to S2104 in FIG. 2a , which will not be described in detail here.
  • the network device 102 can receive the SR sent by the user equipment 101 during the second period of DRX, and can perform uplink resource scheduling, so that the user equipment 101 can enter the activation period at an appropriate time on the basis of using C-DRX to achieve energy saving, and thus monitor the downlink information in time to ensure the communication effect.
  • the communication device 600 shown in FIG6 may be used as the user equipment 101 involved in the above method embodiment, and execute the steps performed by the user equipment 101 in the above method embodiment.
  • the communication device 600 may include a transceiver module 601 and a processing module 602 coupled to each other, wherein the transceiver module 601 may be used to support the communication device to communicate, and the processing module 602 may be used to support the communication device to perform processing operations, such as generating a signal/information to be sent.
  • the transceiver module 601 When executing the steps implemented by the user equipment 101, the transceiver module 601 is configured to send a scheduling request SR to the network device on the first carrier; wherein the user equipment is configured with a connected discontinuous reception C-DRX cycle, And the network device is configured with a DRX cycle on the first carrier;
  • the device 700 may include one or more of the following components: a processing component 702, a memory 704, a power component 706, a multimedia component 708, an audio component 710, an input/output (I/O) interface 712, a sensor component 714, and a communication component 716.
  • a processing component 702 a memory 704
  • a power component 706 a multimedia component 708, an audio component 710, an input/output (I/O) interface 712, a sensor component 714, and a communication component 716.
  • I/O input/output
  • the power supply component 706 provides power to the various components of the device 700.
  • the power supply component 706 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 700.
  • the audio component 710 is configured to output and/or input audio signals.
  • the audio component 710 includes a microphone (MIC), and when the device 1000 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal.
  • the received audio signal can be further stored in the memory 704 or sent via the communication component 716.
  • the audio component 710 also includes a speaker for outputting audio signals.
  • I/O interface 712 provides an interface between processing component 702 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.
  • the sensor assembly 714 includes one or more sensors for providing various aspects of status assessment for the device 700.
  • the sensor assembly 714 can detect the open/closed state of the device 700, the relative positioning of components, such as the display and keypad of the device 700, the sensor assembly 714 can also detect the position change of the device 700 or a component of the device 700, the presence or absence of user contact with the device 700, the orientation or acceleration/deceleration of the device 700, and the temperature change of the device 700.
  • the sensor assembly 714 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • the sensor assembly 714 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 714 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 716 is configured to facilitate wired or wireless communication between the device 700 and other devices.
  • the device 700 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 716 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel.
  • the communication component 716 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can 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
  • the apparatus 700 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 gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above methods.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays
  • controllers microcontrollers, microprocessors or other electronic components to perform the above methods.
  • a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 704 including instructions, and the instructions can be executed by the processor 720 of the device 700 to perform the above method.
  • the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.
  • the embodiment of the present disclosure also provides a device for sending downlink information, which can have the function of the network device 102 in the above method embodiment, and can be used to execute the steps performed by the network device 102 provided by the above method embodiment.
  • the function can be implemented by hardware, or by software or hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the apparatus 800 shown in FIG8 may be used as the network device 102 involved in the above method embodiment, and execute the steps performed by the network device 102 in the above method embodiment.
  • the apparatus 800 may include a processing module 801, wherein the processing module 801 may be used to support the communication device to perform processing operations, such as generating a signal/information to be sent.
  • the processing module 801 is configured to determine whether to receive the SR sent by the user equipment on the first carrier according to the period of the DRX cycle on the first carrier; wherein the network device is configured with a DRX cycle on the first carrier, and the user equipment is configured with a connected discontinuous reception C-DRX cycle;
  • the processing module 801 is further configured to determine whether to send downlink information to the user equipment during the period when the SR is in the SR pending state.
  • the communication device When the communication device is a network device 102, its structure can also be shown in Figure 9. Take the base station as an example to illustrate the structure of the communication device.
  • the device 900 includes a memory 901, a processor 902, a transceiver component 903, and a power supply component 906.
  • the memory 901 is coupled to the processor 902, and can be used to store the programs and data necessary for the communication device 900 to implement various functions.
  • the processor 902 is configured to support the communication device 900 to perform the corresponding functions in the above method, and the functions can be implemented by calling the program stored in the memory 901.
  • the transceiver component 903 can be a wireless transceiver, which can be used to support the communication device 900 to receive signaling and/or data through a wireless air interface, and send signaling and/or data.
  • the transceiver component 903 may also be referred to as a transceiver unit or a communication unit.
  • the transceiver component 903 may include a radio frequency component 904 and one or more antennas 905, wherein the radio frequency component 904 may be a remote radio unit (RRU), which may be specifically used for transmission of radio frequency signals and conversion of radio frequency signals into baseband signals, and the one or more antennas 905 may be specifically used for radiation and reception of radio frequency signals.
  • RRU remote radio unit
  • the processor 902 can perform baseband processing on the data to be sent, and then output the baseband signal to the RF unit.
  • the RF unit performs RF processing on the baseband signal and then sends the RF signal in the form of electromagnetic waves through the antenna.
  • the RF unit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor 902.
  • the processor 902 converts the baseband signal into data and processes the data.
  • the user equipment configured with the C-DRX cycle determines whether to monitor downlink information according to the period of the DRX cycle in which the network device 102 is located.
  • the user equipment 101 can monitor downlink information at an appropriate time or maintain an energy-saving state.

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Abstract

La présente invention propose un procédé et un appareil de transmission d'informations de liaison descendante, et un support d'enregistrement lisible. Le procédé consiste à : envoyer, sur une première porteuse, une requête de planification (SR) à un dispositif de réseau, un cycle de réception discontinue (C-DRX) connecté étant configuré pour un équipement utilisateur, et un cycle DRX étant configuré pour le dispositif de réseau sur la première porteuse ; et lorsque la SR est dans un état en attente SR, selon une durée du cycle DRX sur la première porteuse dans lequel se trouve le dispositif de réseau, déterminer s'il faut surveiller et/ou recevoir des informations de liaison descendante envoyées par le dispositif de réseau. Dans le procédé de la présente invention, après qu'un équipement utilisateur pour lequel un cycle C-DRX est configuré envoie une SR, selon une durée d'un cycle DRX dans lequel se trouve un dispositif de réseau 102, le besoin de surveiller ou non des informations de liaison descendante est déterminé. Par conséquent, un équipement utilisateur (101) peut surveiller des informations de liaison descendante à un moment approprié ou conserver un état d'économie d'énergie.
PCT/CN2023/088022 2023-04-13 2023-04-13 Procédé et appareil de transmission d'informations de liaison descendante, et support d'enregistrement lisible WO2024212157A1 (fr)

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PCT/CN2023/088022 WO2024212157A1 (fr) 2023-04-13 2023-04-13 Procédé et appareil de transmission d'informations de liaison descendante, et support d'enregistrement lisible
CN202380009083.8A CN116830678A (zh) 2023-04-13 2023-04-13 一种传输下行信息的方法、装置以及可读存储介质

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