WO2023115299A1 - 上行资源选择方法、装置、设备及存储介质 - Google Patents

上行资源选择方法、装置、设备及存储介质 Download PDF

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Publication number
WO2023115299A1
WO2023115299A1 PCT/CN2021/139909 CN2021139909W WO2023115299A1 WO 2023115299 A1 WO2023115299 A1 WO 2023115299A1 CN 2021139909 W CN2021139909 W CN 2021139909W WO 2023115299 A1 WO2023115299 A1 WO 2023115299A1
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Prior art keywords
resource
sdt
resources
paging message
random access
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PCT/CN2021/139909
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English (en)
French (fr)
Inventor
林雪
胡奕
李海涛
尤心
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Oppo广东移动通信有限公司
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Priority to PCT/CN2021/139909 priority Critical patent/WO2023115299A1/zh
Publication of WO2023115299A1 publication Critical patent/WO2023115299A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access

Definitions

  • the present application relates to the field of wireless communication, and in particular to an uplink resource selection method, device, equipment and storage medium.
  • the terminal device In the RRC_INACTIVE state (that is, the RRC inactive state), the terminal device supports data transmission through Small Data Transmission (SDT).
  • SDT Small Data Transmission
  • SDT may be an SDT process initiated by the network device side, that is, downlink small data transmission (Mobile Terminated Small Data Transmission, MT-SDT).
  • MT-SDT Mobile Terminated Small Data Transmission
  • Embodiments of the present application provide an uplink resource selection method, device, equipment, and storage medium. Described technical scheme is as follows:
  • a method for selecting uplink resources comprising:
  • the paging message includes first indication information, the first indication information is used to indicate that the network device side has triggered the MT-SDT process, or is used to indicate that downlink data is currently arriving, and the downlink
  • the radio bearer (Radio Bearer, RB) of the data is configured to support triggering SDT;
  • the resources of the first type include one of the following: CG-SDT resources, non-competition random access (Contention Free Random Access, CFRA) resources, and random access resources dedicated to responding to the MT-SDT.
  • CG-SDT resources include one of the following: CG-SDT resources, non-competition random access (Contention Free Random Access, CFRA) resources, and random access resources dedicated to responding to the MT-SDT.
  • CFRA Contention Free Random Access
  • a method for selecting uplink resources comprising:
  • the paging message includes first indication information, and the first indication information is used to indicate that the network device side has triggered the MT-SDT process, or is used to indicate that there is currently downlink data arriving, and the downlink
  • the RB of the data is configured to support triggering SDT;
  • the paging message is used to trigger the terminal device to initiate an uplink transmission process, and the terminal device preferentially selects a first type of resource to initiate the uplink transmission process;
  • the first type of resource includes one of the following: CG-SDT resources, CFRA resources and random access resources dedicated to responding to the MT-SDT.
  • an uplink resource selection device comprising:
  • the message receiving module is configured to receive a paging message, the paging message includes first indication information, and the first indication information is used to indicate that the network device side has triggered the MT-SDT process, or is used to indicate that there is currently Downlink data arrives, and the RB of the downlink data is configured to support triggering SDT;
  • the resource selection module is configured to, in response to the paging message, preferentially select resources of the first type, and initiate an uplink transmission process;
  • the resources of the first type include one of the following: CG-SDT resources, CFRA resources and random access resources dedicated to responding to the MT-SDT.
  • an uplink resource selection device comprising: a message sending module;
  • the message sending module is configured to send a paging message, the paging message includes first indication information, and the first indication information is used to indicate that the device side triggers the MT-SDT process, or is used to indicate that the current Downlink data arrives, and the RB of the downlink data is configured to support triggering SDT;
  • the paging message is used to trigger the terminal device to initiate an uplink transmission process, and the terminal device preferentially selects a first type of resource to initiate the uplink transmission process;
  • the first type of resource includes one of the following: CG-SDT resources, CFRA resources and random access resources dedicated to responding to the MT-SDT.
  • a terminal device includes: a transceiver and a processor; wherein,
  • the transceiver is configured to receive a paging message, the paging message includes first indication information, and the first indication information is used to indicate that the network device side has triggered the MT-SDT process, or is used to indicate that there is currently a downlink Data arrives, and the RB of the downlink data is configured to support triggering SDT;
  • the processor is configured to, in response to the paging message, preferentially select a resource of the first type, and initiate an uplink transmission process;
  • the resources of the first type include one of the following: CG-SDT resources, CFRA resources, and random access resources dedicated to responding to the MT-SDT.
  • a network device includes: a transceiver; wherein,
  • the transceiver is configured to send a paging message, where the paging message includes first indication information, and the first indication information is used to indicate that the network device side triggers the downlink small data transmission MT-SDT process, or is used to Indicate that there is currently downlink data arriving, and the RB of the downlink data is configured to support triggering SDT;
  • the paging message is used to trigger the terminal device to initiate an uplink transmission process, and the terminal device preferentially selects a first type of resource to initiate the uplink transmission process;
  • the first type of resource includes one of the following: CG-SDT resources, CFRA resources and random access resources dedicated to responding to the MT-SDT.
  • a computer-readable storage medium wherein executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by a processor to implement the uplink resources described in the above aspect. Method of choosing.
  • a chip is provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip is run on a computer device, it is used to implement the uplink resource described in the above aspect Method of choosing.
  • a computer program product is provided.
  • the computer program product runs on a processor of a computer device, the computer device executes the uplink resource selection method described in the above aspect.
  • the network device instructs the terminal device to prepare to start the MT-SDT related process through the paging message, it is clarified how the terminal device selects uplink resources to respond to the paging on the network device side after receiving the paging message.
  • FIG. 1 is a flowchart of data transmission in advance provided by an exemplary embodiment of the present application
  • FIG. 2 is a flowchart of data transmission in advance provided by an exemplary embodiment of the present application
  • Fig. 3 is a block diagram of a communication system provided by an exemplary embodiment of the present application.
  • Fig. 4 is a flowchart of an uplink resource selection method provided by an exemplary embodiment of the present application.
  • Fig. 5 is a flowchart of an uplink resource selection method provided by an exemplary embodiment of the present application.
  • Fig. 6 is a flowchart of an uplink resource selection method provided by an exemplary embodiment of the present application.
  • Fig. 7 is a flowchart of an uplink resource selection method provided by an exemplary embodiment of the present application.
  • Fig. 8 is a schematic diagram of an uplink resource selection method provided by an exemplary embodiment of the present application.
  • Fig. 9 is a structural block diagram of an uplink resource selection device provided by an exemplary embodiment of the present application.
  • Fig. 10 is a structural block diagram of an uplink resource selection device provided by an exemplary embodiment of the present application.
  • Fig. 11 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.
  • the EDT process is introduced, which can be understood as a small data transmission process.
  • the terminal device may always remain in an idle state (RRC_IDLE) or a suspended state (RRC_SUSPEND) or an inactive state (RRC_INACTIVE) to complete the transmission of uplink and/or downlink small data packets.
  • RRC_IDLE idle state
  • RRC_SUSPEND suspended state
  • RRC_INACTIVE inactive state
  • EDT is divided into uplink early data transmission (Mobile Originated Early Data Transmission, MO-EDT) and downlink early data transmission (Mobile Terminated Early Data Transmission, MT-EDT). The difference lies in whether the EDT is triggered by a terminal device or a network device.
  • MO-EDT Mobile Originated Early Data Transmission
  • MT-EDT Mobile Terminated Early Data Transmission
  • MO-EDT is an EDT process initiated by a terminal device.
  • the network device includes the maximum transmission block threshold (TB size) allowed by MO-EDT in the system broadcast message.
  • the terminal device determines the amount of data to be transmitted. If it is less than the maximum broadcast size TB size, the terminal device initiates the EDT process, otherwise, the terminal device initiates the normal connection establishment process and enters the connection state to transmit data.
  • MO-EDT is based on the random access process, and the terminal device uses the uplink grant (UL grant) obtained in the random access response (Radom Access Response, RAR) to transmit uplink data.
  • UL grant uplink grant
  • RAR Random Access Response
  • the network device allocates random access resources dedicated to MO-EDT to the terminal device, which is used to distinguish whether the current random access process is triggered by MO-EDT, so as to allocate a larger size UL grant for data transmission through RAR.
  • the MO-EDT air interface transmission process is shown in Figure 1.
  • MT-EDT is an EDT process initiated by a network device, specifically a Mobility Management Entity (MME).
  • MME Mobility Management Entity
  • S-GW Serving GateWay
  • the MME is notified of the data amount information, and the MME instructs the base station to initiate paging (paging) to find the target terminal.
  • the target terminal After receiving the paging message, the target terminal confirms whether it contains the corresponding terminal identifier and MT-EDT indication. If so, the target terminal initiates the MO-EDT process to respond to the paging on the network side.
  • the specific process is shown in Figure 2.
  • MO-EDT initiated during the MT-EDT process is different from the normal MO-EDT in the following ways:
  • the terminal device uses conventional random access channel (legacy RACH) resources to initiate random access, that is, does not use random access resources dedicated to MO-EDT;
  • legacy RACH conventional random access channel
  • the legacy RACH resources can also be understood as contention based random access (Contention Based Random Access, CBRA) resources.
  • CBRA Contention Based Random Access
  • -ResumeCause is mt-EDT, which is used to inform the network device of the current purpose of initiating connection establishment;
  • the base station side can further determine whether to instruct the terminal device to enter the connection state through the Pending Data Indication sent by the core network; wherein, the Pending Data Indication is used to inform the base station whether there is further downlink data transmission demand.
  • RRC_IDLE inactive state
  • RRC_INACTIVE active state
  • RRC_CONNECTED connected state
  • the RRC_INACTIVE state is a new state introduced by the 5G system from the perspective of energy saving.
  • the radio bearer and all radio resources will be released, but the UE access context is reserved on the terminal equipment side and the base station side to quickly restore RRC connection, the network usually keeps terminal devices with infrequent data transmission in the RRC_INACTIVE state.
  • R17 set up a project to carry out research on small data transmission under RRC_INACTIVE.
  • the project goals mainly have two directions: small data transmission based on random access (two-step/four-step) (ie RA-SDT) and based on pre-configured resources (such as CG type1) small data transmission (i.e. CG-SDT).
  • the CG-SDT resource is a terminal-specific (UE-specific) resource configured by a network device through dedicated signaling, for example, an RRCRelease message, that is, there is no resource competition.
  • CG-SDT resources are only valid in the cell where the resource is configured.
  • the terminal device moves to another cell and initiates an access process, the terminal device automatically releases the CG-SDT resource.
  • RA-SDT resources are configured through cell system broadcast messages. Similar to LTE EDT, network devices can configure random access resources dedicated to SDT for terminal devices, which facilitates network devices to distinguish between different terminal processes.
  • FIG. 3 shows a block diagram of a communication system provided by an exemplary embodiment of the present application.
  • the communication system may include: an access network 12 and a terminal device 14 .
  • the access network 12 includes several network devices 120 .
  • the network device 120 may be a base station, and the base station is a device deployed in an access network to provide a terminal device with a wireless communication function.
  • the base station may include various forms of macro base stations, micro base stations, relay stations, access points and so on.
  • the names of devices with base station functions may be different. For example, in LTE systems, they are called eNodeB or eNB; in 5G NR-U systems, they are called gNodeB or gNB. .
  • the description "base station" may change.
  • the above-mentioned devices that provide the wireless communication function for the terminal device 14 are collectively referred to as network devices.
  • the terminal device 14 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment, mobile stations (Mobile Station, MS) , terminal device (terminal device) and so on.
  • the network device 120 and the terminal device 14 communicate with each other through a certain air interface technology, such as a Uu interface.
  • the terminal device 14 supports performing a small data transmission process in an inactive state.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to Everything
  • Fig. 4 shows a flow chart of a method for selecting uplink resources provided by an exemplary embodiment of the present application.
  • the method can be applied to the communication system shown in Figure 3, and the method can include the following steps:
  • Step 410 the network device sends a paging message to the terminal device, the paging message includes first indication information, the first indication information is used to indicate that the network device side has triggered the MT-SDT process, or is used to indicate that there is currently downlink data arriving, And the RB of downlink data is configured to support triggering SDT.
  • the terminal device receives the paging message.
  • Small Data Transmission is a data transmission method configured for terminal equipment in an inactive state.
  • the SDT process does not require an RRC connection to be established between the terminal device and the network device.
  • RRC connection For terminal equipment with small data volume and low transmission frequency, if the data transmission can only be performed after restoring the RRC connection with the network equipment through the connection establishment recovery process, the data transmission needs to return to the inactive state , the power consumption of the terminal equipment is relatively large.
  • the terminal device can avoid switching the connection state, thereby reducing the power consumption of the terminal device.
  • the SDT process is triggered by the network device side, that is, MT-SDT.
  • the core network device sends the downlink data or the indication information of the downlink data to the access network device, and the access network device judges whether the MT-SDT process can be triggered, and if yes, the access network device initiates paging , carrying the first indication information in the paging message, and the embodiment of the present application does not limit the judgment criterion for the access network device to judge whether the MT-SDT process can be triggered.
  • the first indication information is used to indicate that the MT-SDT process is triggered on the network device side, therefore, the terminal device needs to prepare to start performing MT-SDT related procedures; in another possible implementation manner, The first indication information is used to indicate that there is currently downlink data arriving, and the RB of the downlink data is configured to support triggering SDT. Therefore, the terminal device needs to be ready to start an MT-SDT related process.
  • the paging message further includes: a UE identifier, so that the terminal device knows that it is paged.
  • the UE identity is an inactive radio network temporary identity (Inactive Radio Network Temporary Identity, I-RNTI)
  • Step 420 In response to the paging message, the terminal device preferentially selects the first type of resource, and initiates an uplink transmission process; wherein, the first type of resource includes one of the following: CG-SDT resources, CFRA resources, and resources dedicated to responding MT - Random access resources for SDT.
  • the first type of resource includes one of the following: CG-SDT resources, CFRA resources, and resources dedicated to responding MT - Random access resources for SDT.
  • the terminal device after receiving the paging message, in order to respond to the paging on the network device side, the terminal device has the following three options for uplink resource selection:
  • Solution 1 In response to the paging message, the terminal device preferentially selects CG-SDT resources and initiates an uplink transmission process.
  • the terminal device selects the CG-SDT resource and initiates the uplink transmission process; when there is no valid CG-SDT resource, the terminal device considers other types of resources to initiate the uplink transmission process. transfer process.
  • Solution 2 In response to the paging message, the terminal device preferentially selects CFRA resources and initiates an uplink transmission process.
  • the terminal device selects the CFRA resource and initiates an uplink transmission process; when there is no valid CFRA resource, the terminal device considers other types of resources to initiate an uplink transmission process.
  • Solution 3 In response to the paging message, the terminal device preferentially selects random access resources dedicated to responding to MT-SDT, and initiates an uplink transmission process.
  • the terminal device selects the random access resources dedicated to responding to MT-SDT and initiates an uplink transmission process; In the case of random access resources of MT-SDT, the terminal device considers other types of resources to initiate an uplink transmission process.
  • the transmitted uplink data includes second indication information, and the second indication information is used to indicate that the purpose of currently initiating the connection recovery request is MT-SDT.
  • the second indication information is recorded as a recovery cause (ResumeCause), and the ResumeCause is MT-SDT.
  • the second indication information is carried in an RRC recovery request (RRCResumeRequest).
  • the terminal device needs to include the second indication information in the transmitted uplink data.
  • the terminal device only when the terminal device initiates an uplink transmission process and the selected uplink resource is a CBRA resource, does it need to include the second indication information in the transmitted uplink data.
  • the embodiment of the present application does not exclude an implementation manner in which the second indication information does not need to be introduced into the MT-SDT.
  • the technical solution provided by this embodiment clarifies how the terminal device selects uplink after receiving the paging message when the network device instructs the terminal device to prepare to start the MT-SDT related process through the paging message. resources to respond to paging from the network device side.
  • Solution 1 In response to the paging message, the terminal device preferentially selects CG-SDT resources and initiates an uplink transmission process.
  • Fig. 5 shows a flowchart of a method for selecting uplink resources provided by an exemplary embodiment of the present application.
  • the method may be applied to a communication system as shown in FIG. 3 , and the method may include the following steps 510 to 560:
  • Step 510 the network device sends a paging message to the terminal device, the paging message includes first indication information, the first indication information is used to indicate that the network device side has triggered the MT-SDT process, or is used to indicate that there is currently downlink data arriving, And the RB of downlink data is configured to support triggering SDT.
  • the terminal device receives the paging message.
  • Step 520 The terminal device judges whether there is valid CG-SDT resource in response to the paging message.
  • Step 530 When the first condition is met, the terminal device confirms that there is a valid CG-SDT resource; selects a valid CG-SDT resource, and initiates an uplink transmission process.
  • Step 540 If the first condition is not met, the terminal device judges whether there is a valid RA-SDT resource.
  • the first condition is a condition for judging whether there is a valid CG-SDT resource.
  • the first condition includes at least one of the following:
  • the cell that receives the paging message is the cell configured with CG-SDT resources.
  • the first RSRP threshold is predefined in the protocol standard, or is configured by the network device.
  • the RSRP threshold is predefined in the protocol standard, or is configured by the network device.
  • the SSB receiving the paging message configures CG-SDT resources.
  • the terminal device further determines whether there is a valid RA-SDT resource.
  • the terminal device first further judges whether there is uplink data to be transmitted, and then judges whether there is valid RA-SDT resource.
  • judging whether there is a valid RA-SDT resource includes: if the terminal device does not meet the first condition, judging whether there is uplink data to be transmitted; In the case of uplink data to be transmitted, it is determined whether there is a valid RA-SDT resource. And, when there is no uplink data to be transmitted, the terminal device selects a CBRA resource and initiates an uplink transmission process.
  • the uplink data to be transmitted is user plane (User Plane, UP) data, control plane (Control Plane, CP) data, media access control (Medium Access Control, MAC) other than the RRC resume request (RRRCesumeRequest) Control Cell (Control Element, CE).
  • User Plane UP
  • Control Plane CP
  • media access control Medium Access Control, MAC
  • RRRCesumeRequest Control Cell
  • Step 550 When the second condition is met, the terminal device confirms the existence of valid RA-SDT resources; selects valid RA-SDT resources, and initiates an uplink transmission process.
  • Step 560 When the second condition is not satisfied, the terminal device selects a CBRA resource and initiates an uplink transmission process.
  • the second condition is a condition for judging whether there is a valid RA-SDT resource.
  • the second condition includes at least one of the following:
  • the cell that receives the paging message is the cell configured with RA-SDT resources.
  • the first RSRP threshold is predefined in the protocol standard, or is configured by the network device.
  • the network device instructs the terminal device to prepare to start the MT-SDT related process through the paging message
  • the terminal device will preferentially select the CG after receiving the paging message.
  • - SDT resources to respond to paging on the network device side.
  • Solution 2 In response to the paging message, the terminal device preferentially selects CFRA resources and initiates an uplink transmission process.
  • Fig. 6 shows a flowchart of a method for selecting uplink resources provided by an exemplary embodiment of the present application.
  • the method may be applied to a communication system as shown in FIG. 3, and the method may include the following steps 610 to 630:
  • Step 610 The network device sends a paging message to the terminal device, the paging message includes first indication information, the first indication information is used to indicate that the network device side has triggered the MT-SDT process, or is used to indicate that there is currently downlink data arriving, And the RB of downlink data is configured to support triggering SDT.
  • the terminal device receives the paging message.
  • Step 620 In response to the paging message, the terminal device searches the CFRA resource for a reference signal satisfying the RSRP threshold.
  • the CFRA resource includes at least one of the following: at least one candidate reference signal, a preamble (preamble) corresponding to at least one candidate reference signal, a message A payload (MsgA payload) corresponding to at least one candidate reference signal, transmission preamble
  • the random access opportunity (RACH Occasion, RO) resource of the code includes at least one of the following: at least one candidate reference signal, a preamble (preamble) corresponding to at least one candidate reference signal, a message A payload (MsgA payload) corresponding to at least one candidate reference signal, transmission preamble
  • the random access opportunity RACH Occasion, RO
  • the RSRP threshold is predefined in the protocol standard, or is configured by the network device.
  • CFRA resources are indicated by any of the following messages:
  • PDCCH Physical Downlink Control Channel
  • the CFRA resource may be indicated directly by the paging message, or may be indicated by the PDCCH that schedules the paging message or a message scheduled by the paging message, thereby reducing the overhead of the paging message.
  • Step 630 The terminal device uses the CFRA resource corresponding to the reference signal satisfying the RSRP threshold to initiate an uplink transmission process.
  • the terminal device selects a CFRA resource corresponding to a candidate reference signal satisfying the RSRP threshold, and initiates an uplink transmission process.
  • the terminal device performs the step of preferentially selecting the CG-SDT resource and initiating an uplink transmission process; or, there is no reference signal meeting the RSRP threshold in the CFRA resource In the case of a signal, the terminal device selects a CBRA resource and initiates an uplink transmission process.
  • the terminal device may further select uplink resources according to the method in Solution 1, or may select CBRA resources.
  • the reference signal includes at least one of the following: SSB and channel state information reference signal (Channel State Information Reference Signal, CSI-RS).
  • SSB Channel State Information Reference Signal
  • CSI-RS Channel State Information Reference Signal
  • the reference signal is SSB and/or CSI-RS.
  • the network device instructs the terminal device to prepare to start the MT-SDT related process through the paging message
  • the terminal device will preferentially select CFRA after receiving the paging message. resources to respond to paging from the network device side.
  • Solution 3 In response to the paging message, the terminal device preferentially selects random access resources dedicated to responding to MT-SDT, and initiates an uplink transmission process.
  • Fig. 7 shows a flowchart of a method for selecting uplink resources provided by an exemplary embodiment of the present application.
  • the method may be applied to a communication system as shown in FIG. 3, and the method may include the following steps 710 to 730:
  • Step 710 The network device sends a system broadcast message, and the system broadcast message carries random access resources dedicated to responding to the MT-SDT.
  • the terminal device receives the system broadcast message sent by the network device.
  • the random resources dedicated to responding to the MT-SDT are included in the system broadcast message and are cell-specific resources.
  • Step 720 The network device sends a paging message to the terminal device, the paging message includes first indication information, the first indication information is used to indicate that the network device side has triggered the MT-SDT process, or is used to indicate that there is currently downlink data arriving, And the RB of downlink data is configured to support triggering SDT.
  • the terminal device receives the paging message.
  • Step 730 In response to the paging message, the terminal device selects a random access resource dedicated to responding to the MT-SDT, and initiates an uplink transmission process.
  • the terminal device selects a CBRA resource and initiates an uplink transmission process.
  • the network device instructs the terminal device to prepare to start the MT-SDT related process through the paging message
  • the terminal device will preferentially select the dedicated MT-SDT after receiving the paging message.
  • the terminal device will preferentially select the dedicated MT-SDT after receiving the paging message.
  • the random access resources of the MT-SDT to respond to the paging at the network device side.
  • Step 810 The terminal equipment in the RRC_INACTIVE state receives the paging message sent by the cell where it currently camps.
  • the paging message at least includes: UE identity, for example, I-RNTI; first indication information, the first indication information is used to indicate that the current paging process is triggered by the MT-SDT process, or is used to indicate that there is currently downlink data Arrival, the RB to which the downlink data belongs is configured with SDT.
  • Step 820 The terminal device responds to the paging message sent by the network side, and initiates an uplink transmission process, and resource selection methods for uplink transmission include:
  • Option 1 Prioritize the selection of CG-SDT resources.
  • CG-SDT resources Prioritize the selection of CG-SDT resources. If there is no valid CG-SDT resource, determine whether the terminal device has uplink data to be transmitted. If yes, select RA-SDT resource; otherwise, select CBRA resource.
  • Option 2 Prioritize CFRA resources.
  • the network device configures CFRA resources for the terminal device through a paging message.
  • the terminal device judges whether there is an SSB satisfying the RSRP threshold in the CFRA resource, and if it exists, the terminal device uses the CFRA resource to initiate an uplink transmission process. If there is no SSB satisfying the RSRP threshold, the terminal device further selects uplink resources according to the method in solution 1, or the terminal device selects CBRA resources.
  • Scheme 3 Prioritize selection of random access resources dedicated to responding to MT-SDT.
  • the network device configures a random access resource dedicated to responding to MT-SDT for the terminal device through a system broadcast message, and uses the random access resource to initiate uplink transmission. If the random access resource is not configured, the terminal device selects the CBRA resource.
  • the steps performed by the terminal device can independently realize the uplink resource selection method on the terminal device side
  • the steps performed by the network device can independently realize the uplink resource selection method on the network device side
  • Fig. 9 shows a structural block diagram of an uplink resource selection device provided by an exemplary embodiment of the present application.
  • the device can be implemented as a terminal device, or can be implemented as a part of the terminal device.
  • the device includes: a message receiving module 902 and a resource selection module 904;
  • the message receiving module 902 is configured to receive a paging message, the paging message includes first indication information, the first indication information is used to indicate that the network device side has triggered the MT-SDT process, or is used to indicate that the current Downlink data arrives, and the RB of the downlink data is configured to support triggering SDT;
  • the resource selection module 904 is configured to, in response to the paging message, preferentially select resources of the first type, and initiate an uplink transmission process;
  • the resources of the first type include one of the following: CG-SDT resources, CFRA resources, and random access resources dedicated to responding to the MT-SDT.
  • the resource of the first type includes: the CG-SDT resource;
  • the resource selection module 904 is configured to, in response to the paging message, confirm that the valid CG-SDT resource exists based on satisfying the first condition; select the valid CG-SDT resource, and initiate the uplink transmission process .
  • the resource selection module 904 is configured to confirm that there is a valid RA-SDT resource based on satisfying the second condition if the first condition is not met; select a valid The RA-SDT resource initiates the uplink transmission process.
  • the resource selection module 904 is configured to select a CBRA resource and initiate the uplink transmission process when the first condition and the second condition are not met.
  • the resource selection module 904 is configured to determine whether the second condition is satisfied when the first condition is not satisfied and the uplink data to be transmitted exists, and there is The RA-SDT resource is valid; if the first condition is not met and there is no uplink data to be transmitted, select a CBRA resource and initiate the uplink transmission process.
  • the second condition includes at least one of the following:
  • the cell that receives the paging message is the cell configured with the RA-SDT resource
  • the RA-SDT resource is configured on the selected carrier
  • the RSRP measurement result meets the first RSRP threshold.
  • the first condition includes at least one of the following:
  • the cell that receives the paging message is the cell configured with the CG-SDT resource
  • the CG-SDT resource is configured on the selected carrier
  • the RSRP measurement result meets the first RSRP threshold
  • the SSB receiving the paging message configures the CG-SDT resource.
  • the resource of the first type includes: the CFRA resource;
  • the resource selection module 904 is configured to, in response to the paging message, search for a reference signal satisfying the RSRP threshold in the CFRA resource; use the CFRA resource corresponding to the reference signal satisfying the RSRP threshold to initiate the Uplink transmission process.
  • the resource selection module 904 is configured to preferentially select the CG-SDT resource when there is no reference signal satisfying the RSRP threshold in the CFRA resource, and initiate the The steps of the above-mentioned uplink transmission process;
  • the resource selection module 904 is configured to select a CBRA resource and initiate the uplink transmission process when there is no reference signal satisfying the RSRP threshold in the CFRA resource.
  • the CFRA resource is indicated by any of the following messages:
  • the CFRA resource includes at least one of the following: at least one candidate reference signal, a preamble corresponding to the at least one candidate reference signal, a message A payload corresponding to the at least one candidate reference signal, and transmitting the The RO resource for the preamble.
  • the reference signal includes at least one of the following:
  • the resources of the first type include: the random access resources dedicated to responding to the MT-SDT;
  • the message receiving module 902 is configured to receive a system broadcast message, where the system broadcast message carries the random access resources dedicated to responding to the MT-SDT.
  • the resource selection module 904 is configured to select a CBRA resource when there is no random access resource dedicated to responding to the MT-SDT, and initiate the uplink transmission process .
  • FIG. 10 shows a structural block diagram of an uplink resource selection device provided by an exemplary embodiment of the present application.
  • the device can be implemented as a network device, or can be implemented as a part of the network device.
  • the device includes: a message sending module 1002;
  • the message sending module 1002 is configured to send a paging message, the paging message includes first indication information, and the first indication information is used to indicate that the device side triggers the MT-SDT process, or is used to indicate There is currently downlink data arriving, and the RB of the downlink data is configured to support triggering SDT;
  • the paging message is used to trigger the terminal device to initiate an uplink transmission process, and the terminal device preferentially selects a first type of resource to initiate the uplink transmission process;
  • the first type of resource includes one of the following: CG-SDT resources, CFRA resources and random access resources dedicated to responding to the MT-SDT.
  • the resource of the first type includes: the CFRA resource; the CFRA resource is indicated by any one of the following messages:
  • the CFRA resource includes at least one of the following: at least one candidate reference signal, a preamble corresponding to the at least one candidate reference signal, a message A payload corresponding to the at least one candidate reference signal, and transmitting the The RO resource for the preamble.
  • the reference signal includes at least one of the following:
  • the resources of the first type include: the random access resources dedicated to responding to the MT-SDT;
  • the message sending module 1002 is configured to send a system broadcast message, where the system broadcast message carries the random access resources dedicated to responding to the MT-SDT.
  • FIG. 11 shows a schematic structural diagram of a communication device (terminal device or network device) provided by an exemplary embodiment of the present application.
  • the communication device 1100 includes: a processor 1101 , a transceiver 1102 and a memory 1103 .
  • the processor 1101 includes one or more processing cores, and the processor 1101 executes various functional applications by running software programs and modules.
  • the transceiver 1102 can be used for receiving and sending information, and the transceiver 1102 can be a communication chip.
  • the memory 1103 may be used to store a computer program, and the processor 1101 is used to execute the computer program, so as to implement various steps performed by the communication device in the foregoing method embodiments.
  • the memory 1103 can be implemented by any type of volatile or non-volatile storage device or their combination, and the volatile or non-volatile storage device includes but not limited to: random access memory (Random-Access Memory, RAM) And read-only memory (Read-Only Memory, ROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), flash memory or other solid-state storage technologies, compact disc read-only memory (CD-ROM), high-density digital video disc (Digital Video Disc, DVD) or other optical storage, tape cartridges, tapes, disks storage or other magnetic storage devices.
  • RAM Random-Access Memory
  • ROM read-only memory
  • EPROM erasable programmable Read-Only Memory
  • EPROM erasable programmable Read-Only Memory
  • EEPROM Electrically erasable programmable read-only memory
  • the processor 1101 and the transceiver 1102 involved in the embodiment of the present application may execute the steps performed by the terminal device in any of the methods shown in FIG. 4 to FIG. 7 above, I won't repeat them here.
  • the communication device when the communication device is implemented as a terminal device,
  • the transceiver 1102 is configured to receive a paging message, where the paging message includes first indication information, and the first indication information is used to indicate that the network device side has triggered the MT-SDT process, or is used to indicate that there is currently Downlink data arrives, and the RB of the downlink data is configured to support triggering SDT;
  • the processor 1101 is configured to, in response to the paging message, preferentially select resources of the first type, and initiate an uplink transmission process;
  • the resources of the first type include one of the following: CG-SDT resources, CFRA resources, and random access resources dedicated to responding to the MT-SDT.
  • the processor 1101 and the transceiver 1102 involved in the embodiment of the present application may execute the steps performed by the network device in any of the methods shown in FIG. 4 to FIG. 7 above, I won't repeat them here.
  • the communication device when the communication device is implemented as a network device,
  • the transceiver 1102 is configured to send a paging message, where the paging message includes first indication information, and the first indication information is used to indicate that the network device side has triggered the MT-SDT process, or is used to indicate that there is currently Downlink data arrives, and the RB of the downlink data is configured to support triggering SDT;
  • the paging message is used to trigger the terminal device to initiate an uplink transmission process, and the terminal device preferentially selects a first type of resource to initiate the uplink transmission process;
  • the first type of resource includes one of the following: CG-SDT resources, CFRA resources and random access resources dedicated to responding to the MT-SDT.
  • a computer-readable storage medium stores at least one instruction, at least one program, a code set or an instruction set, the at least one instruction, the At least one section of program, the code set or instruction set is loaded and executed by the processor to implement the uplink resource selection method provided by the above method embodiments.
  • a chip is also provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip is run on a communication device, it is used to realize the uplink resource selection described in the above aspect method.
  • a computer program product is also provided.
  • the communication device executes the uplink resource selection method described in the above aspect.
  • the program can be stored in a computer-readable storage medium.
  • the above-mentioned The storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk, and the like.

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Abstract

本申请公开了一种上行资源选择方法、装置、设备及存储介质,涉及无线通信领域。该方法应用于终端设备中,该方法包括:接收寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的RB配置为支持触发SDT;响应于所述寻呼消息,优先选择第一类型的资源,发起上行传输过程;其中,所述第一类型的资源包括如下中的一种:CG-SDT资源、CFRA资源和专用于响应所述MT-SDT的随机接入资源。

Description

上行资源选择方法、装置、设备及存储介质 技术领域
本申请涉及无线通信领域,特别涉及一种上行资源选择方法、装置、设备及存储介质。
背景技术
在RRC_INACTIVE态(即RRC非激活态)下,终端设备支持通过小数据传输(Small Data Transmission,SDT)进行数据传输。
SDT可以是由网络设备侧发起的SDT过程,即下行小数据传输(Mobile Terminated Small Data Transmission,MT-SDT)。在执行MT-SDT过程时,终端设备如何选择上行资源,相关技术尚未提供解决方案。
发明内容
本申请实施例提供了一种上行资源选择方法、装置、设备及存储介质。所述技术方案如下:
根据本申请的一个方面,提供了一种上行资源选择方法,所述方法包括:
接收寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的无线承载(Radio Bearer,RB)配置为支持触发SDT;
响应于所述寻呼消息,优先选择第一类型的资源,发起上行传输过程;
其中,所述第一类型的资源包括如下中的一种:CG-SDT资源、非竞争随机接入(Contention Free Random Access,CFRA)资源和专用于响应所述MT-SDT的随机接入资源。
根据本申请的一个方面,提供了一种上行资源选择方法,所述方法包括:
发送寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的RB配置为支持触发SDT;
其中,所述寻呼消息用于触发终端设备发起上行传输过程,所述终端设备优先选择第一类型的资源以发起所述上行传输过程;所述第一类型的资源包括如下中的一种:CG-SDT资源、CFRA资源和专用于响应所述MT-SDT的随机接入资源。
根据本申请的一个方面,提供了一种上行资源选择装置,所述装置包括:
消息接收模块和资源选择模块;
所述消息接收模块,用于接收寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的RB配置为支持触发SDT;
所述资源选择模块,用于响应于所述寻呼消息,优先选择第一类型的资源,发起上行传输过程;
其中,所述第一类型的资源包括如下中的一种:CG-SDT资源、CFRA资源和专用于响 应所述MT-SDT的随机接入资源。
根据本申请的一个方面,提供了一种上行资源选择装置,所述装置包括:消息发送模块;
所述消息发送模块,用于发送寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示所述装置侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的RB配置为支持触发SDT;
其中,所述寻呼消息用于触发终端设备发起上行传输过程,所述终端设备优先选择第一类型的资源以发起所述上行传输过程;所述第一类型的资源包括如下中的一种:CG-SDT资源、CFRA资源和专用于响应所述MT-SDT的随机接入资源。
根据本申请的一个方面,提供了一种终端设备,所述终端设备包括:收发器和处理器;其中,
所述收发器,用于接收寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的RB配置为支持触发SDT;
所述处理器,用于响应于所述寻呼消息,优先选择第一类型的资源,发起上行传输过程;
其中,所述第一类型的资源包括如下中的一种:CG-SDT资源、CFRA资源和专用于响应所述MT-SDT的随机接入资源。
根据本申请的一个方面,提供了一种网络设备,所述网络设备包括:收发器;其中,
所述收发器,用于发送寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了下行小数据传输MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的RB配置为支持触发SDT;
其中,所述寻呼消息用于触发终端设备发起上行传输过程,所述终端设备优先选择第一类型的资源以发起所述上行传输过程;所述第一类型的资源包括如下中的一种:CG-SDT资源、CFRA资源和专用于响应所述MT-SDT的随机接入资源。
根据本申请的一个方面,提供了一种计算机可读存储介质,所述可读存储介质中存储有可执行指令,所述可执行指令由处理器加载并执行以实现如上述方面所述上行资源选择方法。
根据本申请实施例的一个方面,提供了一种芯片,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片在计算机设备上运行时,用于实现上述方面所述的上行资源选择方法。
根据本申请的一个方面,提供了一种计算机程序产品,该计算机程序产品在计算机设备的处理器上运行时,使得计算机设备执行上述方面所述的上行资源选择方法。
本申请实施例提供的技术方案至少包括如下有益效果:
在网络设备通过寻呼消息指示终端设备准备开始执行MT-SDT相关过程的情况下,明确了终端设备在接收到寻呼消息后,如何选择上行资源以响应网络设备侧的寻呼。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本申请一个示例性实施例提供的提前数据传输的流程图;
图2是本申请一个示例性实施例提供的提前数据传输的流程图;
图3是本申请一个示例性实施例提供的通信系统的框图;
图4是本申请一个示例性实施例提供的上行资源选择方法的流程图;
图5是本申请一个示例性实施例提供的上行资源选择方法的流程图;
图6是本申请一个示例性实施例提供的上行资源选择方法的流程图;
图7是本申请一个示例性实施例提供的上行资源选择方法的流程图;
图8是本申请一个示例性实施例提供的上行资源选择方法的示意图;
图9是本申请一个示例性实施例提供的上行资源选择装置的结构框图;
图10是本申请一个示例性实施例提供的上行资源选择装置的结构框图;
图11是本申请一个示例性实施例提供的通信设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请实施方式作进一步地详细描述。
首先,对本申请实施例中涉及的名词进行简单介绍:
提前数据传输(Early Data Transmission,EDT):
在长期演进(Long Term Evolution,LTE)中,引入了EDT过程,该过程可以理解为一种小数据传输过程。在该过程中,终端设备可能始终保持在空闲态(RRC_IDLE)或者挂起态(RRC_SUSPEND)或者非激活态(RRC_INACTIVE),完成上行和/或下行小数据包的传输。
EDT分为上行提前数据传输(Mobile Originated Early Data Transmission,MO-EDT)和下行提前数据传输(Mobile Terminated Early Data Transmission,MT-EDT),区别在于触发EDT的是终端设备还是网络设备。
MO-EDT是由终端设备发起的EDT过程,网络设备在系统广播消息中包含MO-EDT允许传输的最大传输块阈值(TB size),终端设备判断自己待传输数据量,若小于这个广播的最大TB size,则终端设备发起EDT过程,反之,终端设备发起正常的连接建立过程,进入连接态传输数据。MO-EDT基于随机接入过程,终端设备利用随机接入响应(Radom Access Response,RAR)中获取的上行授权(UL grant)传输上行数据。网络设备为终端设备分配专用于MO-EDT的随机接入资源,用于区分当前随机接入过程是否由MO-EDT触发,从而通过RAR分配更大size的UL grant用于传输数据。MO-EDT空口传输流程如图1所示。
MT-EDT是由网络设备,具体为移动管理实体(Mobility Management Entity,MME),发起的EDT过程,当针对某个终端设备的下行数据到达服务网关(Serving GateWay,S-GW),S-GW将数据量信息告知MME,通过MME指示基站发起寻呼(paging)找到目标终端。目标终端在收到寻呼消息后,确认是否包含对应的终端标识和MT-EDT指示,若包含,则目标终端发起MO-EDT过程响应网络侧的寻呼。具体流程如图2所示。
MT-EDT过程中发起的MO-EDT与正常的MO-EDT存在以下不同:
-终端设备使用常规随机接入信道(legacy RACH)资源发起随机接入,即,不使用专用于MO-EDT的随机接入资源;
在本申请实施例中,legacy RACH资源也可以理解为竞争随机接入(Contention Based Random Access,CBRA)资源。
-恢复原因(ResumeCause)为mt-EDT,用于告知网络设备当前发起连接建立的目的;
-基站侧可以进一步通过核心网发送的待定数据指示(Pending Data Indication),确定是否指示终端设备进入连接态;其中,待定数据指示用于告知基站是否有进一步的下行数据传输需求。
其中,在EDT过程中,只支持一次的上行/下行数据传输。
小数据传输(Small Data Transmission,SDT):
在5G NR系统中,RRC状态分为3种,分别为:RRC_IDLE(空闲态)、RRC_INACTIVE(非激活态)、RRC_CONNECTED(连接态)。
其中,RRC_INACTIVE态是5G系统从节能角度考虑引入的新状态,对于RRC_INACTIVE态的终端设备,无线承载和全部无线资源都会被释放,但终端设备侧和基站侧保留UE接入上下文,以便快速恢复RRC连接,网络通常将数据传输不频繁的终端设备保持在RRC_INACTIVE态。
R16之前,处于RRC_INACTIVE态的终端设备不支持数据传输,当上行或下行数据到达时,终端设备需要恢复连接,待数据传输完成后再释放到非激活态。对于数据量小且传输频率低的终端设备,这样的传输机制会导致不必要的功耗和信令开销。因此,R17立项开展对RRC_INACTIVE下小数据传输的研究,项目目标主要有两个方向:基于随机接入(两步/四步)的小数据传输(即RA-SDT)以及基于预配置资源(如CG type1)的小数据传输(即CG-SDT)。
其中,CG-SDT资源为网络设备通过专用信令,例如,RRCRelease消息配置的终端专用(UE-specific)资源,即不存在资源竞争。CG-SDT资源只在配置资源的小区有效,当终端设备移动到其他小区,并发起接入过程时,终端设备自动释放CG-SDT资源。
RA-SDT资源通过小区系统广播消息配置,与LTE EDT类似,网络设备可以为终端设备配置专用于SDT的随机接入资源,便于网络设备区分不同的终端过程。
图3示出了本申请一个示例性实施例提供的通信系统的框图,该通信系统可以包括:接入网12和终端设备14。
接入网12中包括若干个网络设备120。网络设备120可以是基站,所述基站是一种部署在接入网中用以为终端设备提供无线通信功能的装置。基站可以包括各种形式的宏基站,微基站,中继站,接入点等等。在采用不同的无线接入技术的系统中,具备基站功能的设备的名称可能会有所不同,例如在LTE系统中,称为eNodeB或者eNB;在5G NR-U系统中,称为gNodeB或者gNB。随着通信技术的演进,“基站”这一描述可能会变化。为方便本申请实施例中,上述为终端设备14提供无线通信功能的装置统称为网络设备。
终端设备14可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备,以及各种形式的用户设备,移动台(Mobile Station,MS),终端设备(terminal device)等等。为方便描述,上面提到的设备统称为终端设备。网络设备120与终端设备14之间通过某种空口技术互相通信,例如Uu接口。可选的,终端设备14支持在非激活态执行小数据传输过程。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile Communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组 无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)系统、先进的长期演进(Advanced Long Term Evolution,LTE-A)系统、新无线(New Radio,NR)系统、NR系统的演进系统、非授权频段上的LTE(LTE-based access to Unlicensed spectrum,LTE-U)系统、NR-U系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信系统、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、下一代通信系统或其他通信系统等。
通常来说,传统的通信系统支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信系统将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),车辆间(Vehicle to Vehicle,V2V)通信以及车联网(Vehicle to Everything,V2X)系统等。本申请实施例也可以应用于这些通信系统。
图4示出了本申请一个示例性实施例提供的上行资源选择方法的流程图。该方法可以应用于如图3示出的通信系统中,该方法可以包括如下步骤:
步骤410:网络设备向终端设备发送寻呼消息,寻呼消息包括第一指示信息,第一指示信息用于指示网络设备侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且下行数据的RB配置为支持触发SDT。
相应的,终端设备接收寻呼消息。
小数据传输(SDT)是为处于非激活态的终端设备配置的一种数据传输方式。SDT过程不需要终端设备与网络设备之间建立RRC连接。对于数据量小且传输频率低的终端设备来说,若只能通过连接建立恢复过程,恢复与网络设备之间的RRC连接之后再进行数据传输,则数据传输完成后又需要回到非激活态,终端设备的功耗较大。通过进行SDT过程,终端设备能够避免进行连接状态的转换,从而减少终端设备的功耗。
在本申请实施例中,SDT过程是由网络设备侧触发的,即MT-SDT。
示例性的,核心网设备将下行数据或下行数据的指示信息发给接入网设备,由接入网设备判断是否可以触发MT-SDT过程,如果可以,接入网设备发起寻呼(paging),在寻呼消息中携带第一指示信息,本申请实施例对接入网设备判断是否可以触发MT-SDT过程的判断准则不加以限定。
在一种可能的实现方式中,第一指示信息用于指示网络设备侧触发了MT-SDT过程,因此,终端设备需要准备开始执行MT-SDT相关过程;在另一种可能的实现方式中,第一指示信息用于指示当前有下行数据到达,且下行数据的RB配置为支持触发SDT,因此,终端设备需要准备开始执行MT-SDT相关过程。
可选的,寻呼消息中还包括:UE标识,以使得终端设备明确自身被寻呼。示例性的,UE标识为非激活态无线网络临时标识(Inactive Radio Network Temporary Identity,I-RNTI)
步骤420:终端设备响应于寻呼消息,优先选择第一类型的资源,发起上行传输过程;其中,第一类型的资源包括如下中的一种:CG-SDT资源、CFRA资源和专用于响应MT-SDT的随机接入资源。
也即,在接收到寻呼消息后,为了响应网络设备侧的寻呼,终端设备存在如下三种方案进行上行资源选择:
方案一:终端设备响应于寻呼消息,优先选择CG-SDT资源,发起上行传输过程。
也即,在存在有效的CG-SDT资源的情况下,终端设备选择CG-SDT资源,发起上行传输过程;在不存在效的CG-SDT资源的情况下,终端设备考虑其他类型的资源发起上行传输过程。
方案二:终端设备响应于寻呼消息,优先选择CFRA资源,发起上行传输过程。
也即,在存在有效的CFRA资源的情况下,终端设备选择CFRA资源,发起上行传输过程;在不存在效的CFRA资源的情况下,终端设备考虑其他类型的资源发起上行传输过程。
方案三:终端设备响应于寻呼消息,优先选择专用于响应MT-SDT的随机接入资源,发起上行传输过程。
也即,在存在有效的专用于响应MT-SDT的随机接入资源的情况下,终端设备选择专用于响应MT-SDT的随机接入资源,发起上行传输过程;在不存在效的专用于响应MT-SDT的随机接入资源的情况下,终端设备考虑其他类型的资源发起上行传输过程。
可选的,在步骤420之后,终端设备在发起上行传输时,传输的上行数据中包含第二指示信息,第二指示信息用于指示当前发起连接恢复请求的目的为MT-SDT。示例性的,第二指示信息记为恢复原因(ResumeCause),且ResumeCause为MT-SDT。示例性的,第二指示信息携带在RRC恢复请求(RRCResumeRequest)中。
在一种可能的实现方式中,无论终端设备在发起上行传输过程时,选择的上行资源的类型是什么,终端设备都需要在传输的上行数据中包含第二指示信息。
在另一种可能的实现方式中,仅在终端设备发起上行传输过程时,选择的上行资源是CBRA资源时,才需要在传输的上行数据中包含第二指示信息。
可以理解的是,本申请实施例不排除无需为MT-SDT引入第二指示信息的实现方式。
综上所述,本实施例提供的技术方案,在网络设备通过寻呼消息指示终端设备准备开始执行MT-SDT相关过程的情况下,明确了终端设备在接收到寻呼消息后,如何选择上行资源以响应网络设备侧的寻呼。
在本申请实施例中,提供有三种不同的方案,以供终端设备选择上行资源,下面,对此进行进一步说明。
方案一:终端设备响应于寻呼消息,优先选择CG-SDT资源,发起上行传输过程。
图5示出了本申请一个示例性实施例提供的上行资源选择方法的流程图。该方法可以应用于如图3示出的通信系统中,该方法可以包括如下步骤510至步骤560:
步骤510:网络设备向终端设备发送寻呼消息,寻呼消息包括第一指示信息,第一指示信息用于指示网络设备侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且下行数据的RB配置为支持触发SDT。
相应的,终端设备接收寻呼消息。
步骤520:终端设备响应于寻呼消息,判断是否存在有效的CG-SDT资源。
步骤530:终端设备在满足第一条件的情况下,确认存在有效的CG-SDT资源;选择有 效的CG-SDT资源,发起上行传输过程。
步骤540:终端设备在不满足第一条件的情况下,判断是否存在有效的RA-SDT资源。
其中,第一条件是用于判断是否存在有效的CG-SDT资源的条件。
可选的,第一条件包括如下中的至少一种:
·接收到寻呼消息的小区为配置CG-SDT资源的小区。
·所选载波上配置了CG-SDT资源。
·RSRP测量结果满足第一RSRP门限。
其中,第一RSRP门限是协议标准中预定义的,或者,是网络设备配置的。
·存在满足RSRP阈值且配置了CG-SDT资源的SSB。
其中,RSRP阈值是协议标准中预定义的,或者,是网络设备配置的。
·接收寻呼消息的SSB配置了CG-SDT资源。
在一种可能的实现方式中,在不满足第一条件的情况下,终端设备进一步判断是否存在有效的RA-SDT资源。
在另一种可能的实现方式中,在不满足第一条件的情况下,终端设备先进一步判断是否存在待传输的上行数据,进而判断是否存在有效的RA-SDT资源。
也即,终端设备在不满足第一条件的情况下,判断是否存在有效的RA-SDT资源,包括:终端设备在不满足第一条件的情况下,判断是否存在待传输的上行数据;在存在待传输的上行数据的情况下,判断是否存在有效的RA-SDT资源。并且,在不存在待传输的上行数据的情况下,终端设备选择CBRA资源,发起上行传输过程。
示例性的,待传输的上行数据为RRC恢复请求(RRCResumeRequest)之外的用户面(User Plane,UP)数据、控制面(Control Plane,CP)数据、媒体接入控制(Medium Access Control,MAC)控制信元(Control Element,CE)。
步骤550:终端设备在满足第二条件的情况下,确认存在有效的RA-SDT资源;选择有效的RA-SDT资源,发起上行传输过程。
步骤560:终端设备在不满足第二条件的情况下,选择CBRA资源,发起上行传输过程。
其中,第二条件是用于判断是否存在有效的RA-SDT资源的条件。
可选的,第二条件包括如下中的至少一种:
·接收到寻呼消息的小区为配置RA-SDT资源的小区。
·所选载波上配置了RA-SDT资源。
·RSRP测量结果满足第一RSRP门限。
其中,第一RSRP门限是协议标准中预定义的,或者,是网络设备配置的。
综上所述,本实施例提供的技术方案,在网络设备通过寻呼消息指示终端设备准备开始执行MT-SDT相关过程的情况下,明确了终端设备在接收到寻呼消息后,优先选择CG-SDT资源以响应网络设备侧的寻呼。
方案二:终端设备响应于寻呼消息,优先选择CFRA资源,发起上行传输过程。
图6示出了本申请一个示例性实施例提供的上行资源选择方法的流程图。该方法可以应用于如图3示出的通信系统中,该方法可以包括如下步骤610至步骤630:
步骤610:网络设备向终端设备发送寻呼消息,寻呼消息包括第一指示信息,第一指示 信息用于指示网络设备侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且下行数据的RB配置为支持触发SDT。
相应的,终端设备接收寻呼消息。
步骤620:终端设备响应于寻呼消息,在CFRA资源中查找满足RSRP阈值的参考信号。
其中,CFRA资源包括如下中的至少一种:至少一个候选参考信号,至少一个候选参考信号分别对应的前导码(preamble),至少一个候选参考信号分别对应的消息A载荷(MsgA payload),传输前导码的随机接入时机(RACH Occasion,RO)资源。
其中,RSRP阈值是协议标准中预定义的,或者,是网络设备配置的。
可选的,CFRA资源由如下中的任何一种消息来指示:
·寻呼消息。
·调度寻呼消息的物理下行控制信道(Physical Downlink Control Channel,PDCCH)。
·寻呼消息所调度的消息。
也即,CFRA资源可以直接由寻呼消息进行指示,也可以由调度寻呼消息的PDCCH或者寻呼消息所调度的消息进行指示,从而减少寻呼消息的开销。
步骤630:终端设备利用满足RSRP阈值的参考信号对应的CFRA资源,发起上行传输过程。
示例性的,在存在一个或多个满足RSRP阈值的候选参考信号的情况下,终端设备选择一个满足RSRP阈值的候选参考信号对应的CFRA资源,发起上行传输过程。
可选的,在CFRA资源中不存在满足RSRP阈值的参考信号的情况下,终端设备执行优先选择CG-SDT资源,发起上行传输过程的步骤;或,在CFRA资源中不存在满足RSRP阈值的参考信号的情况下,终端设备选择CBRA资源,发起上行传输过程。
也即,若终端设备不满足选择CFRA资源的条件,终端设备可以进一步根据方案一中的方法选择上行资源,也可以选择CBRA资源。
可选的,参考信号包括如下中的至少一种:SSB和信道状态信息参考信号(Channel State Information Reference Signal,CSI-RS)。
也即,参考信号为SSB和/或CSI-RS。
综上所述,本实施例提供的技术方案,在网络设备通过寻呼消息指示终端设备准备开始执行MT-SDT相关过程的情况下,明确了终端设备在接收到寻呼消息后,优先选择CFRA资源以响应网络设备侧的寻呼。
方案三:终端设备响应于寻呼消息,优先选择专用于响应MT-SDT的随机接入资源,发起上行传输过程。
图7示出了本申请一个示例性实施例提供的上行资源选择方法的流程图。该方法可以应用于如图3示出的通信系统中,该方法可以包括如下步骤710至步骤730:
步骤710:网络设备发送系统广播消息,系统广播消息中携带专用于响应MT-SDT的随机接入资源。
相应的,终端设备接收网络设备发送的系统广播消息。
也即,专用于响应MT-SDT的随机资源包含在系统广播消息中,为小区专用资源。
步骤720:网络设备向终端设备发送寻呼消息,寻呼消息包括第一指示信息,第一指示 信息用于指示网络设备侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且下行数据的RB配置为支持触发SDT。
相应的,终端设备接收寻呼消息。
步骤730:终端设备响应于寻呼消息,选择专用于响应MT-SDT的随机接入资源,发起上行传输过程。
可选的,在不存在专用于响应MT-SDT的随机接入资源的情况下,终端设备选择CBRA资源,发起上行传输过程。
综上所述,本实施例提供的技术方案,在网络设备通过寻呼消息指示终端设备准备开始执行MT-SDT相关过程的情况下,明确了终端设备在接收到寻呼消息后,优先选择专用于响应MT-SDT的随机接入资源以响应网络设备侧的寻呼。
下面,结合图8对本申请所提供的技术方案进行示例性的说明。
步骤810:处于RRC_INACTIVE态的终端设备接收当前驻留小区发送的寻呼消息。
其中,寻呼消息中至少包括:UE标识,例如,I-RNTI;第一指示信息,第一指示信息用于指示当前寻呼过程由MT-SDT过程触发,或者,用于指示当前有下行数据到达,所述下行数据所属的RB配置了SDT。
步骤820:终端设备响应网络侧发送的寻呼消息,发起上行传输过程,用于上行传输的资源选择方法包括:
方案一:优先选择CG-SDT资源。
1.1优先选择CG-SDT资源,若不存在有效的CG-SDT资源,选择RA-SDT资源,若也不存在有效的RA-SDT资源,则选择CBRA资源。
1.2优先选择CG-SDT资源,若不存在有效的CG-SDT资源,判断终端设备是否有待传输的上行数据,若存在,选择RA-SDT资源,否则,选择CBRA资源。
方案二:优先选择CFRA资源。
示例性的,网络设备通过寻呼消息为终端设备配置CFRA资源。
终端设备在CFRA资源中判断是否有满足RSRP阈值的SSB,若存在,则终端设备利用CFRA资源发起上行传输过程。若不存在满足RSRP阈值的SSB,终端设备进一步根据方案一中的方法选择上行资源,或者,终端设备选择CBRA资源。
方案三:优先选择专用于响应MT-SDT的随机接入资源。
网络设备通过系统广播消息为终端设备配置专用于响应MT-SDT的随机接入资源,并利用该随机接入资源发起上行传输。若未配置该随机接入资源,终端设备选择CBRA资源。
需要说明的是,上述方法实施例可以分别单独实施,也可以组合实施,本申请对此不进行限制。
在上述各个实施例中,由终端设备执行的步骤可以单独实现成为终端设备一侧的上行资源选择方法,由网络设备执行的步骤可以单独实现成为网络设备一侧的上行资源选择方法。
图9示出了本申请一个示例性实施例提供的上行资源选择装置的结构框图,该装置可以实现成为终端设备,或者,实现成为终端设备中的一部分,该装置包括:消息接收模块902 和资源选择模块904;
所述消息接收模块902,用于接收寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的RB配置为支持触发SDT;
所述资源选择模块904,用于响应于所述寻呼消息,优先选择第一类型的资源,发起上行传输过程;
其中,所述第一类型的资源包括如下中的一种:CG-SDT资源、CFRA资源和专用于响应所述MT-SDT的随机接入资源。
在一个可选的实施例中,所述第一类型的资源包括:所述CG-SDT资源;
所述资源选择模块904,用于响应于所述寻呼消息,基于满足第一条件,确认存在有效的所述CG-SDT资源;选择有效的所述CG-SDT资源,发起所述上行传输过程。
在一个可选的实施例中,所述资源选择模块904,用于在不满足所述第一条件的情况下,基于满足第二条件,确认存在有效的所述RA-SDT资源;选择有效的所述RA-SDT资源,发起所述上行传输过程。
在一个可选的实施例中,所述资源选择模块904,用于在不满足所述第一条件和所述第二条件的情况下,选择CBRA资源,发起所述上行传输过程。
在一个可选的实施例中,所述资源选择模块904,用于在不满足所述第一条件,且存在所述待传输的上行数据的情况下,判断是否满足所述第二条件,存在有效的所述RA-SDT资源;在不满足所述第一条件,且不存在所述待传输的上行数据的情况下,选择CBRA资源,发起所述上行传输过程。
在一个可选的实施例中,所述第二条件包括如下中的至少一种:
接收到所述寻呼消息的小区为配置所述RA-SDT资源的小区;
所选载波上配置了所述RA-SDT资源;
RSRP测量结果满足第一RSRP门限。
在一个可选的实施例中,所述第一条件包括如下中的至少一种:
接收到所述寻呼消息的小区为配置所述CG-SDT资源的小区;
所选载波上配置了所述CG-SDT资源;
RSRP测量结果满足第一RSRP门限;
存在满足RSRP阈值且配置了所述CG-SDT资源的SSB;
接收所述寻呼消息的SSB配置了所述CG-SDT资源。
在一个可选的实施例中,所述第一类型的资源包括:所述CFRA资源;
所述资源选择模块904,用于响应于所述寻呼消息,在所述CFRA资源中查找满足RSRP阈值的参考信号;利用所述满足RSRP阈值的参考信号对应的所述CFRA资源,发起所述上行传输过程。
在一个可选的实施例中,所述资源选择模块904,用于在所述CFRA资源中不存在满足所述RSRP阈值的参考信号的情况下,执行优先选择所述CG-SDT资源,发起所述上行传输过程的步骤;
或,
所述资源选择模块904,用于在所述CFRA资源中不存在满足所述RSRP阈值的参考信 号的情况下,选择CBRA资源,发起所述上行传输过程。
在一个可选的实施例中,所述CFRA资源由如下中的任何一种消息来指示:
所述寻呼消息;
调度所述寻呼消息的PDCCH;
所述寻呼消息所调度的消息;
其中,所述CFRA资源包括如下中的至少一种:至少一个候选参考信号,所述至少一个候选参考信号分别对应的前导码,所述至少一个候选参考信号分别对应的消息A载荷,传输所述前导码的RO资源。
在一个可选的实施例中,所述参考信号包括如下中的至少一种:
SSB和CSI-RS。
在一个可选的实施例中,所述第一类型的资源包括:所述专用于响应所述MT-SDT的随机接入资源;
所述消息接收模块902,用于接收系统广播消息,所述系统广播消息中携带所述专用于响应所述MT-SDT的随机接入资源。
在一个可选的实施例中,所述资源选择模块904,用于在不存在所述专用于响应所述MT-SDT的随机接入资源的情况下,选择CBRA资源,发起所述上行传输过程。
图10示出了本申请一个示例性实施例提供的上行资源选择装置的结构框图,该装置可以实现成为网络设备,或者,实现成为网络设备中的一部分,该装置包括:消息发送模块1002;
所述消息发送模块1002,用于发送寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示所述装置侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的RB配置为支持触发SDT;
其中,所述寻呼消息用于触发终端设备发起上行传输过程,所述终端设备优先选择第一类型的资源以发起所述上行传输过程;所述第一类型的资源包括如下中的一种:CG-SDT资源、CFRA资源和专用于响应所述MT-SDT的随机接入资源。
在一个可选的实施例中,所述第一类型的资源包括:所述CFRA资源;所述CFRA资源由如下中的任何一种消息来指示:
所述寻呼消息;
调度所述寻呼消息的PDCCH;
所述寻呼消息所调度的消息;
其中,所述CFRA资源包括如下中的至少一种:至少一个候选参考信号,所述至少一个候选参考信号分别对应的前导码,所述至少一个候选参考信号分别对应的消息A载荷,传输所述前导码的RO资源。
在一个可选的实施例中,所述参考信号包括如下中的至少一种:
SSB和CSI-RS。
在一个可选的实施例中,所述第一类型的资源包括:所述专用于响应所述MT-SDT的随机接入资源;
所述消息发送模块1002,用于发送系统广播消息,所述系统广播消息中携带所述专用于响应所述MT-SDT的随机接入资源。
图11示出了本申请一个示例性实施例提供的通信设备(终端设备或网络设备)的结构示意图,该通信设备1100包括:处理器1101、收发器1102和存储器1103。
处理器1101包括一个或者一个以上处理核心,处理器1101通过运行软件程序以及模块,从而执行各种功能应用。
收发器1102可以用于进行信息的接收和发送,收发器1102可以是一块通信芯片。
存储器1103可用于存储计算机程序,处理器1101用于执行该计算机程序,以实现上述方法实施例中通信设备执行的各个步骤。
此外,存储器1103可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:随机存储器(Random-Access Memory,RAM)和只读存储器(Read-Only Memory,ROM)、可擦写可编程只读存储器(Erasable Programmable Read-Only Memory,EPROM)、电可擦写可编程只读存储器(Electrically Erasable Programmable Read-Only Memory,EEPROM)、闪存或其他固态存储其技术,只读光盘(Compact Disc Read-Only Memory,CD-ROM)、高密度数字视频光盘(Digital Video Disc,DVD)或其他光学存储、磁带盒、磁带、磁盘存储或其他磁性存储设备。
其中,当通信设备实现为终端设备时,本申请实施例涉及的中的处理器1101和收发器1102,可以执行上述图4至图7任一所示的方法中,由终端设备执行的步骤,此处不再赘述。
在一种可能的实现方式中,当通信设备实现为终端设备时,
所述收发器1102,用于接收寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的RB配置为支持触发SDT;
所述处理器1101,用于响应于所述寻呼消息,优先选择第一类型的资源,发起上行传输过程;
其中,所述第一类型的资源包括如下中的一种:CG-SDT资源、CFRA资源和专用于响应所述MT-SDT的随机接入资源。
其中,当通信设备实现为网络设备时,本申请实施例涉及的中的处理器1101和收发器1102,可以执行上述图4至图7任一所示的方法中,由网络设备执行的步骤,此处不再赘述。
在一种可能的实现方式中,当通信设备实现为网络设备时,
所述收发器1102,用于发送寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的RB配置为支持触发SDT;
其中,所述寻呼消息用于触发终端设备发起上行传输过程,所述终端设备优先选择第一类型的资源以发起所述上行传输过程;所述第一类型的资源包括如下中的一种:CG-SDT资源、CFRA资源和专用于响应所述MT-SDT的随机接入资源。
在示例性实施例中,还提供了一种计算机可读存储介质,所述计算机可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集,所述至少一条指令、所述至少一段程序、所述代码集或指令集由处理器加载并执行以实现上述各个方法实施例提供的上行资源选择方法。
在示例性实施例中,还提供了一种芯片,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片在通信设备上运行时,用于实现上述方面所述的上行资源选择方法。
在示例性实施例中,还提供了一种计算机程序产品,该计算机程序产品在计算机设备的处理器上运行时,使得通信设备执行上述方面所述的上行资源选择方法。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
以上所述仅为本申请的可选实施例,并不用以限制本申请,凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (39)

  1. 一种上行资源选择方法,其特征在于,所述方法包括:
    接收寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了下行小数据传输MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的无线承载RB配置为支持触发SDT;
    响应于所述寻呼消息,优先选择第一类型的资源,发起上行传输过程;
    其中,所述第一类型的资源包括如下中的一种:基于预配置资源的小数据传输CG-SDT资源、非竞争随机接入CFRA资源和专用于响应所述MT-SDT的随机接入资源。
  2. 根据权利要求1所述的方法,其特征在于,所述第一类型的资源包括:所述CG-SDT资源;
    所述响应于所述寻呼消息,优先选择第一类型的资源,发起上行传输过程,包括:
    响应于所述寻呼消息,在基于满足第一条件,确认存在有效的所述CG-SDT资源;
    选择有效的所述CG-SDT资源,发起所述上行传输过程。
  3. 根据权利要求2所述的方法,其特征在于,所述方法还包括:
    在不满足所述第一条件的情况下,基于满足第二条件,确认存在有效的基于随机接入的小数据传输RA-SDT资源;
    选择有效的所述RA-SDT资源,发起所述上行传输过程。
  4. 根据权利要求3所述的方法,其特征在于,所述方法还包括:
    在不满足所述第一条件和所述第二条件的情况下,选择竞争随机接入CBRA资源,发起所述上行传输过程。
  5. 根据权利要求3所述的方法,其特征在于,所述方法还包括:
    在不满足所述第一条件,且存在所述待传输的上行数据的情况下,判断是否满足所述第二条件,存在有效的所述RA-SDT资源;
    在不满足所述第一条件,且不存在所述待传输的上行数据的情况下,选择CBRA资源,发起所述上行传输过程。
  6. 根据权利要求3至5任一所述的方法,其特征在于,所述第二条件包括如下中的至少一种:
    接收到所述寻呼消息的小区为配置所述RA-SDT资源的小区;
    所选载波上配置了所述RA-SDT资源;
    参考信号接收功率RSRP测量结果满足第一RSRP门限。
  7. 根据权利要求2至6任一所述的方法,其特征在于,所述第一条件包括如下中的至少一种:
    接收到所述寻呼消息的小区为配置所述CG-SDT资源的小区;
    所选载波上配置了所述CG-SDT资源;
    RSRP测量结果满足第一RSRP门限;
    存在满足RSRP阈值且配置了所述CG-SDT资源的同步信号块SSB;
    接收所述寻呼消息的SSB配置了所述CG-SDT资源。
  8. 根据权利要求1所述的方法,其特征在于,所述第一类型的资源包括:所述CFRA资 源;
    所述响应于所述寻呼消息,优先选择第一类型的资源,发起所述上行传输过程,包括:
    响应于所述寻呼消息,在所述CFRA资源中查找满足RSRP阈值的参考信号;
    利用所述满足RSRP阈值的参考信号对应的所述CFRA资源,发起所述上行传输过程。
  9. 根据权利要求8所述的方法,其特征在于,所述方法还包括:
    在所述CFRA资源中不存在满足所述RSRP阈值的参考信号的情况下,执行优先选择所述CG-SDT资源,发起所述上行传输过程的步骤;
    或,
    在所述CFRA资源中不存在满足所述RSRP阈值的参考信号的情况下,选择CBRA资源,发起所述上行传输过程。
  10. 根据权利要求8或9所述的方法,其特征在于,所述CFRA资源由如下中的任何一种消息来指示:
    所述寻呼消息;
    调度所述寻呼消息的物理下行控制信道PDCCH;
    所述寻呼消息所调度的消息;
    其中,所述CFRA资源包括如下中的至少一种:至少一个候选参考信号,所述至少一个候选参考信号分别对应的前导码,所述至少一个候选参考信号分别对应的消息A载荷,传输所述前导码的随机接入时机RO资源。
  11. 根据权利要求8至10任一所述的方法,其特征在于,所述参考信号包括如下中的至少一种:
    SSB和信道状态信息参考信号CSI-RS。
  12. 根据权利要求1所述的方法,其特征在于,所述第一类型的资源包括:所述专用于响应所述MT-SDT的随机接入资源,在响应于所述寻呼消息,优先选择第一类型的资源,发起所述上行传输过程之前,所述方法还包括:
    接收系统广播消息,所述系统广播消息中携带所述专用于响应所述MT-SDT的随机接入资源。
  13. 根据权利要求12所述的方法,其特征在于,所述方法还包括:
    在不存在所述专用于响应所述MT-SDT的随机接入资源的情况下,选择CBRA资源,发起所述上行传输过程。
  14. 一种上行资源选择方法,其特征在于,所述方法包括:
    发送寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了下行小数据传输MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的无线承载RB配置为支持触发SDT;
    其中,所述寻呼消息用于触发终端设备发起上行传输过程,所述终端设备优先选择第一类型的资源以发起所述上行传输过程;所述第一类型的资源包括如下中的一种:基于预配置资源的小数据传输CG-SDT资源、非竞争随机接入CFRA资源和专用于响应所述MT-SDT的随机接入资源。
  15. 根据权利要求14所述的方法,其特征在于,所述第一类型的资源包括:所述CFRA资源;所述CFRA资源由如下中的任何一种消息来指示:
    所述寻呼消息;
    调度所述寻呼消息的物理下行控制信道PDCCH;
    所述寻呼消息所调度的消息;
    其中,所述CFRA资源包括如下中的至少一种:至少一个候选参考信号,所述至少一个候选参考信号分别对应的前导码,所述至少一个候选参考信号分别对应的消息A载荷,传输所述前导码的随机接入时机RO资源。
  16. 根据权利要求15所述的方法,其特征在于,所述参考信号包括如下中的至少一种:
    同步信号块SSB和信道状态信息参考信号CSI-RS。
  17. 根据权利要求14所述的方法,其特征在于,所述第一类型的资源包括:所述专用于响应所述MT-SDT的随机接入资源,所述方法还包括:
    发送系统广播消息,所述系统广播消息中携带所述专用于响应所述MT-SDT的随机接入资源。
  18. 一种上行资源选择装置,其特征在于,所述装置包括:消息接收模块和资源选择模块;
    所述消息接收模块,用于接收寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了下行小数据传输MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的无线承载RB配置为支持触发SDT;
    所述资源选择模块,用于响应于所述寻呼消息,优先选择第一类型的资源,发起上行传输过程;
    其中,所述第一类型的资源包括如下中的一种:基于预配置资源的小数据传输CG-SDT资源、非竞争随机接入CFRA资源和专用于响应所述MT-SDT的随机接入资源。
  19. 根据权利要求18所述的装置,其特征在于,所述第一类型的资源包括:所述CG-SDT资源;
    所述资源选择模块,用于响应于所述寻呼消息,基于满足第一条件,确认存在有效的所述CG-SDT资源;选择有效的所述CG-SDT资源,发起所述上行传输过程。
  20. 根据权利要求19所述的装置,其特征在于,
    所述资源选择模块,用于在不满足所述第一条件的情况下,基于满足第二条件,确认存在有效的基于随机接入的小数据传输RA-SDT资源;选择有效的所述RA-SDT资源,发起所述上行传输过程。
  21. 根据权利要求20所述的装置,其特征在于,
    所述资源选择模块,用于在不满足所述第一条件和所述第二条件的情况下,选择竞争随机接入CBRA资源,发起所述上行传输过程。
  22. 根据权利要求20所述的装置,其特征在于,
    所述资源选择模块,用于在不满足所述第一条件,且存在所述待传输的上行数据的情况下,判断是否满足所述第二条件,存在有效的所述RA-SDT资源;在不满足所述第一条件,且不存在所述待传输的上行数据的情况下,选择CBRA资源,发起所述上行传输过程。
  23. 根据权利要求20至22任一所述的装置,其特征在于,所述第二条件包括如下中的至少一种:
    接收到所述寻呼消息的小区为配置所述RA-SDT资源的小区;
    所选载波上配置了所述RA-SDT资源;
    参考信号接收功率RSRP测量结果满足第一RSRP门限。
  24. 根据权利要求19至23任一所述的装置,其特征在于,所述第一条件包括如下中的至少一种:
    接收到所述寻呼消息的小区为配置所述CG-SDT资源的小区;
    所选载波上配置了所述CG-SDT资源;
    RSRP测量结果满足第一RSRP门限;
    存在满足RSRP阈值且配置了所述CG-SDT资源的同步信号块SSB;
    接收所述寻呼消息的SSB配置了所述CG-SDT资源。
  25. 根据权利要求18所述的装置,其特征在于,所述第一类型的资源包括:所述CFRA资源;
    所述资源选择模块,用于响应于所述寻呼消息,在所述CFRA资源中查找满足RSRP阈值的参考信号;利用所述满足RSRP阈值的参考信号对应的所述CFRA资源,发起所述上行传输过程。
  26. 根据权利要求25所述的装置,其特征在于,
    所述资源选择模块,用于在所述CFRA资源中不存在满足所述RSRP阈值的参考信号的情况下,执行优先选择所述CG-SDT资源,发起所述上行传输过程的步骤;
    或,
    所述资源选择模块,用于在所述CFRA资源中不存在满足所述RSRP阈值的参考信号的情况下,选择CBRA资源,发起所述上行传输过程。
  27. 根据权利要求25或26所述的装置,其特征在于,所述CFRA资源由如下中的任何一种消息来指示:
    所述寻呼消息;
    调度所述寻呼消息的物理下行控制信道PDCCH;
    所述寻呼消息所调度的消息;
    其中,所述CFRA资源包括如下中的至少一种:至少一个候选参考信号,所述至少一个候选参考信号分别对应的前导码,所述至少一个候选参考信号分别对应的消息A载荷,传输所述前导码的随机接入时机RO资源。
  28. 根据权利要求25至27任一所述的装置,其特征在于,所述参考信号包括如下中的至少一种:
    SSB和信道状态信息参考信号CSI-RS。
  29. 根据权利要求18所述的装置,其特征在于,所述第一类型的资源包括:所述专用于响应所述MT-SDT的随机接入资源;
    所述消息接收模块,用于接收系统广播消息,所述系统广播消息中携带所述专用于响应所述MT-SDT的随机接入资源。
  30. 根据权利要求29所述的装置,其特征在于,
    所述资源选择模块,用于在不存在所述专用于响应所述MT-SDT的随机接入资源的情况下,选择CBRA资源,发起所述上行传输过程。
  31. 一种上行资源选择装置,其特征在于,所述装置包括:消息发送模块;
    所述消息发送模块,用于发送寻呼消息,所述寻呼消息包括第一指示信息,所述第一指 示信息用于指示所述装置侧触发了下行小数据传输MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的无线承载RB配置为支持触发SDT;
    其中,所述寻呼消息用于触发终端设备发起上行传输过程,所述终端设备优先选择第一类型的资源以发起所述上行传输过程;所述第一类型的资源包括如下中的一种:基于预配置资源的小数据传输CG-SDT资源、非竞争随机接入CFRA资源和专用于响应所述MT-SDT的随机接入资源。
  32. 根据权利要求31所述的装置,其特征在于,所述第一类型的资源包括:所述CFRA资源;所述CFRA资源由如下中的任何一种消息来指示:
    所述寻呼消息;
    调度所述寻呼消息的物理下行控制信道PDCCH;
    所述寻呼消息所调度的消息;
    其中,所述CFRA资源包括如下中的至少一种:至少一个候选参考信号,所述至少一个候选参考信号分别对应的前导码,所述至少一个候选参考信号分别对应的消息A载荷,传输所述前导码的随机接入时机RO资源。
  33. 根据权利要求32所述的装置,其特征在于,所述参考信号包括如下中的至少一种:
    同步信号块SSB和信道状态信息参考信号CSI-RS。
  34. 根据权利要求31所述的装置,其特征在于,所述第一类型的资源包括:所述专用于响应所述MT-SDT的随机接入资源;
    所述消息发送模块,用于发送系统广播消息,所述系统广播消息中携带所述专用于响应所述MT-SDT的随机接入资源。
  35. 一种终端设备,其特征在于,所述终端设备包括:收发器和处理器;其中,
    所述收发器,用于接收寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了下行小数据传输MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的无线承载RB配置为支持触发SDT;
    所述处理器,用于响应于所述寻呼消息,优先选择第一类型的资源,发起上行传输过程;
    其中,所述第一类型的资源包括如下中的一种:基于预配置资源的小数据传输CG-SDT资源、非竞争随机接入CFRA资源和专用于响应所述MT-SDT的随机接入资源。
  36. 一种网络设备,其特征在于,所述网络设备包括:收发器;其中,
    所述收发器,用于发送寻呼消息,所述寻呼消息包括第一指示信息,所述第一指示信息用于指示网络设备侧触发了下行小数据传输MT-SDT过程,或者,用于指示当前有下行数据到达,且所述下行数据的无线承载RB配置为支持触发SDT;
    其中,所述寻呼消息用于触发终端设备发起上行传输过程,所述终端设备优先选择第一类型的资源以发起所述上行传输过程;所述第一类型的资源包括如下中的一种:基于预配置资源的小数据传输CG-SDT资源、非竞争随机接入CFRA资源和专用于响应所述MT-SDT的随机接入资源。
  37. 一种计算机可读存储介质,其特征在于,所述可读存储介质中存储有可执行指令,所述可执行指令由处理器加载并执行以实现如权利要求1至17任一所述的上行资源选择方法。
  38. 一种芯片,其特征在于,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片运行时,用于实现如权利要求1至17任一所述的上行资源选择方法。
  39. 一种计算机程序产品或计算机程序,其特征在于,所述计算机程序产品或计算机程序包括计算机指令,所述计算机指令存储在计算机可读存储介质中,处理器从所述计算机可读存储介质读取并执行所述计算机指令,以实现如权利要求1至17任一所述的上行资源选择方法。
PCT/CN2021/139909 2021-12-21 2021-12-21 上行资源选择方法、装置、设备及存储介质 WO2023115299A1 (zh)

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