WO2023077313A1 - 基于增强上行覆盖的传输方法、门限的配置方法以及装置 - Google Patents

基于增强上行覆盖的传输方法、门限的配置方法以及装置 Download PDF

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Publication number
WO2023077313A1
WO2023077313A1 PCT/CN2021/128471 CN2021128471W WO2023077313A1 WO 2023077313 A1 WO2023077313 A1 WO 2023077313A1 CN 2021128471 W CN2021128471 W CN 2021128471W WO 2023077313 A1 WO2023077313 A1 WO 2023077313A1
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Prior art keywords
target
threshold
selection threshold
sul
uplink carrier
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PCT/CN2021/128471
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English (en)
French (fr)
Inventor
李海涛
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2021/128471 priority Critical patent/WO2023077313A1/zh
Priority to CN202180100661.XA priority patent/CN117643154A/zh
Publication of WO2023077313A1 publication Critical patent/WO2023077313A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present application relates to the field of mobile communication, in particular to a transmission method based on enhanced uplink coverage, a threshold configuration method and a device.
  • the frequency band used by the fifth generation mobile communication technology (5th Generation Mobile Communication Technology, 5G) system is relatively high, such as millimeter wave.
  • the higher the frequency band the greater the signal transmission loss. Since the transmit power of the terminal equipment is limited, this will lead to the limitation of the uplink coverage of the terminal equipment. Therefore, the 5G system introduces a supplementary uplink carrier (Supplementary Uplink, SUL).
  • SUL is generally in a lower frequency band, such as the frequency band of Long Term Evolution (LTE).
  • LTE Long Term Evolution
  • the terminal device can select an uplink carrier explicitly indicated by the network device for uplink transmission.
  • the terminal device can also select the uplink carrier used by the terminal device according to the magnitude relationship between the signal quality of the serving cell and the selection threshold broadcast by the network device. For different terminal devices, the network device will broadcast the same selection threshold, so that the terminal devices can select the uplink carrier they use.
  • Embodiments of the present application provide a transmission method based on enhanced uplink coverage, a threshold configuration method and a device. Described technical scheme is as follows:
  • a transmission method based on enhanced uplink coverage is provided, which is applied to a terminal device, and the method includes:
  • the target selection threshold is configured for the terminal equipment supporting the SUL and the enhanced uplink coverage.
  • a method for configuring a threshold is provided, which is applied to a core network device, and the method includes:
  • the target selection threshold is configured for a terminal device supporting the SUL and enhanced uplink coverage, and the target selection threshold is used for the terminal device to select an uplink carrier among NUL and SUL as an uplink carrier based on the enhanced uplink coverage.
  • the target uplink carrier for the covered transmission is configured for a terminal device supporting the SUL and enhanced uplink coverage, and the target selection threshold is used for the terminal device to select an uplink carrier among NUL and SUL as an uplink carrier based on the enhanced uplink coverage.
  • the target uplink carrier for the covered transmission is configured for a terminal device supporting the SUL and enhanced uplink coverage.
  • a transmission device based on enhanced uplink coverage includes:
  • a selection module configured to use at least one target selection threshold to select an uplink carrier in NUL and SUL as a target uplink carrier for transmission based on the enhanced uplink coverage;
  • the target selection threshold is configured for the terminal equipment supporting the SUL and the enhanced uplink coverage.
  • a device for configuring a threshold includes:
  • a sending module configured to configure at least one target selection threshold to the terminal device
  • the target selection threshold is configured for a terminal device supporting the SUL and enhanced uplink coverage, and the target selection threshold is used for the terminal device to select an uplink carrier among NUL and SUL as an uplink carrier based on the enhanced uplink coverage.
  • the target uplink carrier for the covered transmission is configured for a terminal device supporting the SUL and enhanced uplink coverage, and the target selection threshold is used for the terminal device to select an uplink carrier among NUL and SUL as an uplink carrier based on the enhanced uplink coverage.
  • the target uplink carrier for the covered transmission is configured for a terminal device supporting the SUL and enhanced uplink coverage.
  • a terminal includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein, the The processor is configured to load and execute the executable instructions to implement the transmission method based on enhanced uplink coverage as described in the above aspects.
  • a network device includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein, The processor is configured to load and execute the executable instructions to implement the method for configuring the threshold as described in the above aspects.
  • a computer-readable storage medium wherein executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by the processor to implement the above-mentioned aspects.
  • the above-mentioned enhanced uplink coverage-based transmission method or threshold configuration method is provided, wherein executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by the processor to implement the above-mentioned aspects.
  • 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 enhanced uplink-based The transmission method of the override or the configuration method of the threshold.
  • a computer program product or computer program comprising computer instructions stored in a computer-readable storage
  • the readable storage medium reads and executes the computer instructions, so that the computer device executes the transmission method based on enhanced uplink coverage or the threshold configuration method described in the above aspect.
  • the target selection threshold for the terminal device By configuring the target selection threshold for the terminal device, it is possible to configure a separate request threshold for the terminal device supporting enhanced uplink coverage, so that the terminal device selects an uplink carrier. In this way, it can be ensured that the terminal equipment supporting the enhanced uplink coverage can select the NUL for transmission based on the enhanced uplink coverage, so as to achieve the purpose of load balancing.
  • FIG. 1 is a schematic diagram of a system architecture of a communication system provided by an exemplary embodiment of the present application
  • Fig. 2 is a schematic diagram of a process of requesting enhanced uplink coverage provided by an exemplary embodiment of the present application
  • FIG. 3 is a flowchart of a transmission method based on enhanced uplink coverage provided by an exemplary embodiment of the present application
  • FIG. 4 is a flowchart of a threshold configuration method provided in an exemplary embodiment of the present application.
  • FIG. 5 is a flowchart of a transmission method based on enhanced uplink coverage provided by an exemplary embodiment of the present application
  • Fig. 6 is a schematic diagram of coverage provided by an exemplary embodiment of the present application.
  • FIG. 7 is a flowchart of a transmission method based on enhanced uplink coverage provided by an exemplary embodiment of the present application.
  • FIG. 8 is a flowchart of a transmission method based on enhanced uplink coverage provided by an exemplary embodiment of the present application.
  • Fig. 9 is a block diagram of a transmission device based on enhanced uplink coverage provided by an exemplary embodiment of the present application.
  • FIG. 10 is a block diagram of a threshold configuration device provided in 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.
  • first, second, third, etc. may be used in the present disclosure to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information. Depending on the context, the word “if” as used herein may be interpreted as “at” or “when” or “in response to a determination.”
  • 5G 5th Generation Partnership Project
  • eMBB Enhanced Mobile Broadband
  • URLLC Ultra Reliable Low Latency Communications
  • mMTC massive Machine Type of Communication
  • New air interface (New Radio, NR) can be deployed independently.
  • a new Radio Resource Control (RRC) state is defined, specifically RRC_INACTIVE state, which is different from the RRC idle (RRC_IDLE) state and the RRC active (RRC_ACTIVE) state.
  • RRC_INACTIVE RRC_INACTIVE
  • RRC_ACTIVE RRC active
  • each RRC state can reflect a network connection state, and describes how the network device and the terminal handle terminal movement, paging message and system information broadcast.
  • RRC_IDLE Mobility in the RRC_IDLE state refers to terminal-based cell selection reselection.
  • the paging is initiated by the core network (Core Network, CN) device, and the paging area is configured by the CN device.
  • the base station does not have a terminal access stratum (Access Stratum, AS) context. There is no RRC connection.
  • RRC_CONNECTED There is an RRC connection in the RRC_IDLE state, and the base station and the terminal have a terminal AS context. The location of the terminal determined by the network device is at the cell level. Mobility refers to mobility controlled by network devices. Unicast data can be transmitted between the terminal and the base station.
  • Mobility in the RRC_IDLE state refers to cell selection and reselection based on the terminal, there is a connection between CN and NR, the terminal AS context exists on a base station, and paging is triggered by the radio access network (Random Access Network, RAN) , the RAN-based paging area is managed by the RAN, and the location of the terminal determined by the network device is based on the paging area level of the RAN.
  • Radio access network Random Access Network
  • Supplementary uplink carriers may also be referred to as supplementary uplinks.
  • a cell generally includes an uplink carrier (Uplink Carrier) and a downlink carrier (Downlink Carrier), and the uplink carrier and the downlink carrier are in the same frequency band (Frequency Band).
  • Uplink Carrier Uplink Carrier
  • Downlink Carrier Downlink Carrier
  • the uplink carrier and the downlink carrier are in the same frequency band (Frequency Band).
  • Frequency Band Frequency Band
  • terminal devices have limited transmission power, and the frequency of spectrum used by NR is higher (the higher the frequency, the higher the loss in the propagation process), so the uplink coverage of terminal devices will be limited.
  • SUL is introduced into the NR system.
  • the implementation of SUL can use LTE spectrum (relatively low frequency) as uplink for NR system, so it can improve the uplink coverage of terminal equipment.
  • the selection threshold is configured through the system broadcast of the network device. The selection threshold does not take into account the fact that the terminal device supports enhanced uplink coverage.
  • the terminal device can dynamically switch between two uplink carriers, and the network device indicates through the downlink control information (Downlink Control Information, DCI).
  • DCI Downlink Control Information
  • Terminal equipment in idle (IDLE) state and inactive (INACTIVE) state can select NUL (also called uplink carrier, NL) or SUL for initial connection according to the relationship between the signal quality of the serving cell and the above selection threshold. enter. Specifically, the terminal device can obtain the configured selection gate according to the System Information Block (SIB), and the selection threshold is rsrp-ThresholdSSB-SUL configured in the SIB. If the signal quality measurement result of the serving cell is smaller than the selected value, the terminal device will select SUL, otherwise the terminal device will select NUL.
  • SIB System Information Block
  • the coverage of the mobile communication network is one of the main network performances concerned by operators.
  • 5G works in a higher frequency band.
  • the working frequency band is 3.5GHz
  • the working frequency band may be as high as 28GHz or 39GHz.
  • the higher the operating frequency band the greater the path loss experienced by the signal, resulting in reduced network coverage.
  • the transmission power of the network equipment is much greater than that of the terminal equipment, so the uplink coverage of the network faces a more serious coverage limitation problem.
  • Uplink coverage enhancement is currently being standardized in NR.
  • One aspect is to introduce a repetition (repetition) transmission mechanism for the Physical Uplink Shared Channel (PUSCH) transmission of Message 3 (Msg3) in the random access process.
  • the terminal device can judge whether to perform repeated transmission according to the downlink coverage situation. For example, when the measured value of Reference Signal Receiving Power (RSRP) is lower than a pre-configured threshold, the terminal device can pass Message 1 (Message 1, Msg1) requests the repeated transmission of PUSCH of Msg3.
  • RSRP Reference Signal Receiving Power
  • the network device After the network device receives the specific Msg1, it can allocate an uplink grant (UL grant) to the terminal device through the uplink grant (UL grant) in the Random Access Response (Random Access Response, RAR) in Message 2 (Message 2, Msg2).
  • UL grant uplink grant
  • RAR Random Access Response
  • Message 2 Message 2, Msg2
  • a terminal device in an NR network selects SUL or NUL, it does not consider the enhanced uplink coverage.
  • the terminal device supports enhanced uplink coverage, since the repeated transmission of Msg3 can use NUL or SUL, the coverage of NUL and SUL can be further expanded.
  • the terminal device may not select an enhanced uplink coverage area that cannot reach NUL.
  • the terminal equipment chooses to connect to the SUL, which may cause congestion on the SUL.
  • Fig. 1 shows a schematic diagram of a system architecture of a communication system provided by an embodiment of the present application.
  • the system architecture may include: a terminal device 10 , an access network device 20 and a core network device 30 .
  • the terminal device 10 may refer to a UE (User Equipment, user equipment), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent or a user device.
  • UE User Equipment
  • an access terminal a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent or a user device.
  • the terminal device can also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol, session initiation protocol) phone, a WLL (Wireless Local Loop, wireless local loop) station, a PDA (Personal Digital Assistant, personal digital processing) , handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5GS (5th Generation System, fifth-generation mobile communication system) or future evolution of PLMN (Public Land Mobile Network, public land mobile communication network) terminal equipment, etc., this embodiment of the present application is not limited to this.
  • the devices mentioned above are collectively referred to as terminal devices.
  • the number of terminal devices 10 is generally multiple, and one or more terminal devices 10 may be distributed in a cell managed by each access network device 20 .
  • the access network device 20 is a device deployed in an access network to provide a wireless communication function for the terminal device 10 .
  • the access network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with access network device functions may be different.
  • they are called gNodeB or gNB.
  • the name "access network equipment” may change.
  • access network devices For the convenience of description, in the embodiment of the present application, the above-mentioned devices that provide the wireless communication function for the terminal device 10 are collectively referred to as access network devices.
  • a communication relationship may be established between the terminal device 10 and the core network device 30 through the access network device 20 .
  • the access network device 20 may be EUTRAN (Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Network) or one or more eNodeBs in EUTRAN; in the 5G NR system, the access The network device 20 may be the RAN or one or more gNBs in the RAN.
  • EUTRAN Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Network
  • eNodeBs in EUTRAN
  • the access The network device 20 may be the RAN or one or more gNBs in the RAN.
  • the functions of the core network device 30 are mainly to provide user connections, manage users, and carry out services, and provide an interface to external networks as a bearer network.
  • the core network equipment in the 5G NR system can include AMF (Access and Mobility Management Function, access and mobility management function) entity, UPF (User Plane Function, user plane function) entity and SMF (Session Management Function, session management function) entity and other equipment.
  • AMF Access and Mobility Management Function, access and mobility management function
  • UPF User Plane Function, user plane function
  • SMF Session Management Function, session management function
  • the access network device 20 and the core network device 30 may be collectively referred to as network devices.
  • the access network device 20 and the core network device 30 communicate with each other through some air technology, such as the NG interface in the 5G NR system.
  • the access network device 20 and the terminal device 10 communicate with each other through a certain air technology, such as a Uu interface.
  • Fig. 2 is a schematic diagram of a process of requesting enhanced uplink coverage provided by an exemplary embodiment of the present application.
  • the terminal device receives the system message broadcast by the network device, and obtains the selection threshold configured by the network device by reading the system message.
  • the core network device configures the selection threshold and broadcasts it to the terminal device through the access network device.
  • the selection threshold includes at least one target selection threshold and a second selection threshold. Wherein, the target selection threshold is configured for terminal equipment supporting SUL and enhanced uplink coverage.
  • the second selection threshold is configured for terminal devices that support SUL but do not support enhanced uplink coverage.
  • Enhanced uplink coverage refers to repeated transmission of message 3.
  • the terminal device can also receive multiple selection thresholds, and select at least one target selection threshold from the multiple selection thresholds.
  • the terminal device triggers a random access process.
  • the terminal device judges the specific process of performing random access based on the device capabilities supported by itself.
  • the device capability includes whether to support SUL and whether to support enhanced uplink coverage.
  • the terminal device can first select an uplink carrier, and then determine whether to request transmission based on enhanced uplink coverage. Specifically, in step S4, the terminal device judges whether the signal quality of the serving cell is smaller than the target selection threshold. In step S41, if the signal quality of the serving cell is lower than the target selection threshold, the terminal device will select SUL. In step S42, the terminal device judges whether to use the SUL to request transmission based on enhanced uplink coverage based on the relationship between the first request threshold configured on the SUL and the signal quality of the serving cell. In step S43, if the signal quality of the serving cell is not less than the target selection threshold, the terminal device will select NUL. In step S44, the terminal device determines whether to use the NUL to request transmission based on enhanced uplink coverage based on the magnitude relationship between the second request threshold configured on the NUL and the signal quality of the serving cell.
  • step S5 the terminal device judges whether the signal quality of the serving cell is smaller than the second selection threshold.
  • step S51 when the signal quality of the serving cell is lower than the second selection threshold, the terminal device will select the SUL, and then use the SUL to perform transmission based on normal uplink coverage.
  • step S52 when the signal quality of the serving cell is not less than the second selection threshold, the terminal device will select NUL, and then use NUL to perform transmission based on normal uplink coverage.
  • the terminal device can also first determine whether to request transmission based on enhanced uplink coverage, and then select an uplink carrier. Specifically, in step S61, the terminal device judges whether to request transmission based on enhanced uplink coverage based on the magnitude relationship between the second request threshold and the signal quality of the serving cell. In step S62, after selecting an uplink carrier, the terminal device will select an uplink carrier from NUL and SUL based on the relationship between the target selection threshold and the signal quality of the serving cell, and use the selected uplink carrier to request an enhanced uplink coverage based transmission.
  • the above-mentioned transmission based on enhanced uplink coverage refers to at least one of the repeated transmission of message 3 in the random access process and the repeated transmission of message 3 based on the message 1 request in the random access process.
  • the network device will indicate the result of the terminal device's request through message 2.
  • the core network device also configures the first request threshold and the second request threshold for the terminal device, and broadcasts them to the terminal device through the access network device.
  • the first request threshold is configured for SUL
  • the second request threshold is configured for NUL.
  • the at least one target selection threshold can include one or more selection thresholds. For example, for different parameters reflecting signal quality, the core network device will configure a target selection threshold for it.
  • the terminal device may find that the signal quality of one serving cell is lower than its corresponding selection threshold in at least one target selection threshold, or the signal quality of each serving cell is lower than the other In the case of a corresponding selection threshold in at least one target selection threshold, the terminal device will determine that the signal quality of the serving cell is smaller than the target selection threshold.
  • the signal quality of the serving cell includes the RSRP of the serving cell, the Reference Signal Receiving Quality (RSRQ) of the serving cell, the Signal to Interference plus Noise Ratio (SINR) of the serving cell, the service At least one of the received signal code power (Received Signal Code Power, RSCP) of the cell and the ratio (Ec/No) of the chip energy of the serving cell to the total interference energy density.
  • RSRQ Reference Signal Receiving Quality
  • SINR Signal to Interference plus Noise Ratio
  • a separate request threshold can be configured for a terminal device supporting enhanced uplink coverage, so that the terminal device selects an uplink carrier.
  • the terminal equipment supporting the enhanced uplink coverage can select the NUL for transmission based on the enhanced uplink coverage, so as to achieve the purpose of load balancing.
  • prioritizing whether to perform transmission based on enhanced uplink coverage, and then selecting an uplink carrier is beneficial to maximize the use of enhanced uplink coverage to compensate for NUL coverage, reduce the use of SUL, and avoid SUL congestion.
  • FIG. 3 shows a flowchart of a transmission method based on enhanced uplink coverage provided by an embodiment of the present application.
  • FIG. 3 illustrates an example in which the method is applied to a terminal device in the communication system shown in FIG. 1 .
  • the method includes:
  • Step 302 Use at least one target selection threshold to select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on enhanced uplink coverage.
  • the at least one target selection threshold is configured by the core network equipment for the terminal equipment supporting SUL and enhanced uplink coverage through the access network equipment based on broadcasted system messages.
  • the core network device can also configure at least one target selection threshold for the terminal device based on the multiple access channel control element (Multiple Access Channel Control Element, MAC CE) message and the RRC message through the access network device.
  • Multiple Access Channel Control Element Multiple Access Channel Control Element, MAC CE
  • the core network device can also configure multiple selection thresholds for the terminal device, and the multiple selection thresholds are configured for the terminal device supporting SUL and enhanced uplink coverage.
  • the terminal device will select the at least one target selection threshold from the multiple selection thresholds.
  • the multiple selection thresholds include: a selection threshold corresponding to RSRP, a selection threshold corresponding to RSRQ, a selection threshold corresponding to SINR, a selection threshold corresponding to RSCP, and a selection threshold corresponding to Ec/No .
  • the terminal device can select at least one target selection threshold indicated by the network device from multiple selection thresholds according to the instruction of the network device.
  • the terminal device selects at least one target selection threshold from multiple selection thresholds according to the type of the measured parameter reflecting the signal quality of the serving cell.
  • the terminal device measures the RSRP and RSRQ of the serving cell to measure the signal quality of the serving cell, and the terminal device selects a selection threshold corresponding to RSRP and a selection threshold corresponding to RSRQ among multiple selection thresholds.
  • the signal quality of the serving cell includes at least one of the RSRP of the serving cell, the RSRQ of the serving cell, the SINR of the serving cell, the RSCP of the serving cell, and the Ec/No of the serving cell.
  • the core network device will also be configured with a second selection threshold, and the second selection threshold is configured for terminal devices that support SUL but do not support enhanced uplink coverage.
  • Supporting enhanced uplink coverage refers to supporting repeated transmission of message 3.
  • the at least one target selection threshold can include one or more selection thresholds, for example, the at least one target selection threshold includes at least one of the following:
  • the selection threshold corresponding to RSRP The selection threshold corresponding to RSRP
  • the selection threshold corresponding to RSCP The selection threshold corresponding to RSCP
  • the terminal device selects SUL. If the signal quality of the serving cell of the terminal device is not less than the target selection threshold, the terminal device will select NUL.
  • the terminal equipment supports SUL and enhanced uplink coverage.
  • the at least one target selection threshold includes one selection threshold
  • the at least one target selection threshold is rsrp-ThresholdSSB-SUL-CE, which is configured for the case of using RSRP to measure the signal quality of a cell.
  • the above second selection threshold can be rsrp-ThresholdSSB-SUL.
  • the terminal device performs the above process of selecting the uplink carrier according to the size relationship between rsrp-ThresholdSSB-SUL-CE and the RSRP of the serving cell.
  • the terminal device will determine that the signal quality of the serving cell is less than the target selection threshold:
  • the RSRP of the serving cell is smaller than the selection threshold corresponding to the RSRP in at least one target selection threshold;
  • the RSRQ of the serving cell is smaller than the selection threshold corresponding to the RSRQ in at least one target selection threshold;
  • the SINR of the serving cell is smaller than the selection threshold corresponding to the SINR in at least one target selection threshold;
  • the RSCP of the serving cell is smaller than the selection threshold corresponding to the RSCP in at least one target selection threshold;
  • the Ec/No of the serving cell is smaller than the selection threshold corresponding to Ec/No in at least one target selection threshold.
  • the transmission based on the enhanced uplink coverage includes repeated transmission of message 3 during the random access process. And, during the random access procedure, at least one of repeated transmissions of the message 3 is requested based on the message 1 .
  • the terminal device selects the uplink carrier, it can also use the uplink carrier to perform transmission based on normal uplink coverage.
  • the terminal device can determine whether to perform transmission based on enhanced uplink coverage before selecting NUL and SUL, or determine whether to perform transmission based on enhanced uplink coverage after selecting NUL and SUL.
  • the terminal device determines whether to perform transmission based on enhanced uplink coverage before selecting NUL and SUL, after selecting the target uplink carrier in NUL and SUL.
  • the terminal device will judge whether to use the target uplink carrier for transmission based on enhanced uplink coverage according to the magnitude relationship between the request threshold corresponding to the target uplink carrier and the signal quality of the serving cell.
  • SUL corresponds to the first request threshold
  • NUL corresponds to the second request threshold
  • the first request threshold is different from the second request threshold.
  • the first request threshold is different from the target selection threshold
  • the second request threshold is different from the target selection threshold. For example, the first request threshold is greater than the target selection threshold, and the second request threshold is smaller than the target selection threshold.
  • the first request threshold and the second request threshold can respectively include multiple request thresholds, for example, the first request threshold and the second request threshold also include request thresholds corresponding to different types of parameters for measuring service quality.
  • the first request threshold includes at least one of a request threshold corresponding to RSRP, a request threshold corresponding to RSRQ, a request threshold corresponding to SINR, a request threshold corresponding to RSCP, and a request threshold corresponding to Ec/No.
  • the first request threshold is greater than the target selection threshold, which means that the request threshold corresponding to the same type of service quality measurement parameter as the target selection threshold in the first request threshold is greater than the target selection threshold.
  • the request threshold corresponding to RSRP in the first request threshold is greater than rsrp-ThresholdSSB-SUL-CE.
  • the second request threshold is the same as the first request threshold.
  • the type of signal quality of the serving cell used by the terminal device in the process of selecting the uplink carrier is the same as or different from the type of signal quality of the serving cell used in the process of judging whether to use the target uplink carrier for transmission based on enhanced uplink coverage.
  • the first request threshold is rsrp-Threshold-SUL-CE
  • the second request threshold is rsrp-Threshold-CE.
  • the first request threshold and the second request threshold are configured by the core network device for the terminal device.
  • the core network device broadcasts a system message to the terminal device through the access network device to configure the request threshold for the terminal device.
  • the system message includes the first request threshold and the second request threshold.
  • the terminal device When the terminal device determines whether to perform transmission based on enhanced uplink coverage before selecting NUL and SUL, the terminal device will judge whether to perform transmission based on enhanced uplink coverage according to the magnitude relationship between the second request threshold and the signal of the serving cell , and then select a carrier in NUL and SUL as a target uplink carrier for transmission based on enhanced uplink coverage.
  • the terminal device when the terminal device supports SUL but does not support enhanced uplink coverage, the terminal device will use the second selection threshold to select an uplink carrier from SUL and NUL, and use the selected uplink carrier to perform transmission based on normal uplink coverage.
  • a separate request threshold can be configured for the terminal device supporting enhanced uplink coverage, so that the terminal device can select an uplink carrier. In this way, it can be ensured that the terminal equipment supporting the enhanced uplink coverage can select the NUL for transmission based on the enhanced uplink coverage, so as to achieve the purpose of load balancing.
  • FIG. 4 shows a flow chart of a threshold configuration method provided by an embodiment of the present application.
  • FIG. 4 uses an example in which the method is applied to a core network device in the communication system shown in FIG. 1 .
  • the method includes:
  • Step 402 Configure at least one target selection threshold for the terminal device.
  • the target selection threshold is configured for a terminal device supporting SUL and enhanced uplink coverage, and the target selection threshold is used for the terminal device to select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on enhanced uplink coverage.
  • Supporting enhanced uplink coverage refers to supporting repeated transmission of message 3.
  • the core network device configures at least one target selection threshold for the terminal device through a system message broadcast by the access network device to the terminal device.
  • the core network device can also configure at least one target selection threshold for the terminal device based on the MAC CE message and the RRC message through the access network device.
  • the core network device also configures multiple selection thresholds for the terminal device.
  • the multiple selection thresholds are configured for terminal equipment supporting SUL and enhanced uplink coverage, and the multiple selection thresholds are used for the terminal equipment to select at least one target selection threshold.
  • the core network device also configures the second selection threshold for the terminal device.
  • the second selection threshold is used for terminal equipment that supports SUL but does not support enhanced uplink coverage, selects one of the uplink carriers of NUL and SUL as the target uplink carrier for transmission based on normal uplink coverage, the target selection threshold and the second selection threshold different.
  • a terminal device that does not support enhanced uplink coverage may be called a legacy (legacy) terminal device.
  • the at least one target selection threshold includes a selection threshold or a plurality of selection thresholds.
  • the at least one target selection threshold includes at least one of the following:
  • the selection threshold corresponding to RSRP The selection threshold corresponding to RSRP
  • the selection threshold corresponding to RSCP The selection threshold corresponding to RSCP
  • the at least one target selection threshold includes one selection threshold
  • the at least one target selection threshold is rsrp-ThresholdSSB-SUL-CE
  • the second selection threshold can be rsrp-ThresholdSSB-SUL.
  • the transmission based on the enhanced uplink coverage includes repeated transmission of message 3 during the random access process. And, during the random access procedure, at least one of repeated transmissions of the message 3 is requested based on the message 1 .
  • the terminal device selects SUL. If the signal quality of the serving cell of the terminal device is not less than the target selection threshold, the terminal device will select NUL.
  • the terminal equipment supports SUL and enhanced uplink coverage.
  • a separate request threshold can be configured for the terminal device supporting enhanced uplink coverage, so that the terminal device can select an uplink carrier. In this way, it can be ensured that the terminal equipment supporting the enhanced uplink coverage can select the NUL for transmission based on the enhanced uplink coverage, so as to achieve the purpose of load balancing.
  • the core network device can configure at least one target selection threshold for the terminal device supporting SUL and enhanced uplink coverage. According to the at least one target selection threshold, the terminal device can select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on enhanced uplink coverage. And it can also determine whether to perform transmission based on enhanced uplink coverage. It can be divided into that the terminal equipment first selects the uplink carrier, and then determines whether to perform transmission based on enhanced uplink coverage. And, the terminal device first determines whether to perform transmission based on enhanced uplink coverage, and then selects the two cases of the uplink carrier. In addition, the core network device can also configure the second selection threshold for a terminal device that supports SUL but does not support enhanced uplink coverage. According to the second selection threshold, the terminal device can select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on normal uplink coverage.
  • the above three situations are described below through three embodiments:
  • the first type for the case where the terminal device supports SUL and enhanced uplink coverage, and first selects an uplink carrier, and then determines whether to perform transmission based on enhanced uplink coverage.
  • FIG. 5 shows a flowchart of a transmission method based on enhanced uplink coverage provided by an embodiment of the present application.
  • FIG. 5 exemplifies that the method is applied to the communication system shown in FIG. 1 .
  • the method includes:
  • Step 502 The core network device configures at least one target selection threshold and request threshold for the terminal device.
  • At least one target selection threshold is configured for a terminal device supporting SUL and enhanced uplink coverage, and at least one target selection threshold is used for the terminal device to select an uplink carrier among NUL and SUL as a target uplink for transmission based on enhanced uplink coverage carrier.
  • the core network device can also configure multiple selection thresholds for the terminal device, and the multiple selection thresholds are configured for the terminal device supporting SUL and enhanced uplink coverage.
  • the terminal device will select the at least one target selection threshold from the multiple selection thresholds.
  • the multiple selection thresholds include: a selection threshold corresponding to RSRP, a selection threshold corresponding to RSRQ, a selection threshold corresponding to SINR, a selection threshold corresponding to RSCP, and a selection threshold corresponding to Ec/No.
  • the core network device also configures the second selection threshold for the terminal device.
  • the second selection threshold is used for terminal equipment that supports SUL but does not support enhanced uplink coverage, selects one of the uplink carriers of NUL and SUL as the target uplink carrier for transmission based on normal uplink coverage, the target selection threshold and the second selection threshold different.
  • the request threshold is used by the terminal device to determine whether to perform transmission based on enhanced uplink coverage on the target uplink carrier in the selected NUL and SUL.
  • the core network device configures the request threshold for the terminal device, and configures the first request threshold and the second request threshold for the terminal device.
  • the first request threshold is configured for SUL
  • the second request threshold is configured for NUL
  • the first request threshold is different from the second request threshold.
  • the first request threshold is different from the target selection threshold
  • the second request threshold is different from the target selection threshold.
  • the first request threshold is greater than the target selection threshold, and the second request threshold is smaller than the target selection threshold.
  • the first request threshold and the second request threshold can respectively include multiple request thresholds.
  • the first request threshold includes at least one of a request threshold corresponding to RSRP, a request threshold corresponding to RSRQ, a request threshold corresponding to SINR, a request threshold corresponding to RSCP, and a request threshold corresponding to Ec/No.
  • the first request threshold is greater than the target selection threshold, which means that the request threshold corresponding to the same type of service quality measurement parameter as the target selection threshold in the first request threshold is greater than the target selection threshold.
  • the second request threshold is the same as the first request threshold.
  • the core network device configures at least one target selection threshold and request threshold for the terminal device through a system message broadcast by the access network device.
  • the core network device can also configure at least one target selection threshold for the terminal device based on the MAC CE message and the RRC message through the access network device.
  • the core network device configures at least one target selection threshold and the request threshold for the terminal device at the same time, or configures the at least one target selection threshold and the request threshold separately.
  • Step 504 The terminal device uses at least one target selection threshold to select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on enhanced uplink coverage.
  • the terminal device receives at least one target selection threshold in the system message broadcast by the access network device, and optionally, the terminal device also receives a second selection threshold in the system message broadcast by the access network device.
  • the terminal device selects the selection threshold it uses according to the device capabilities it supports. In the case that the terminal device supports SUL and enhanced uplink coverage, at least one target selection threshold is used to select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on enhanced uplink coverage.
  • At least one target selection threshold includes at least one of the following:
  • the selection threshold corresponding to RSRP The selection threshold corresponding to RSRP
  • the selection threshold corresponding to RSCP The selection threshold corresponding to RSCP
  • the at least one target selection threshold includes one selection threshold
  • the at least one target selection threshold is rsrp-ThresholdSSB-SUL-CE
  • the second selection threshold is rsrp-ThresholdSSB-SUL.
  • the terminal device When the signal quality of the serving cell is not less than the target selection threshold, the terminal device will select NUL as the target uplink carrier. When the signal quality of the serving cell is lower than the target selection threshold, the terminal device will select the SUL as the target uplink carrier.
  • the signal quality of the serving cell refers to a measured value of RSRP of the serving cell.
  • the terminal device will determine that the signal quality of the serving cell is less than at least one target selection threshold:
  • the RSRP of the serving cell is smaller than the selection threshold corresponding to the RSRP in at least one target selection threshold;
  • the RSRQ of the serving cell is smaller than the selection threshold corresponding to the RSRQ in at least one target selection threshold;
  • the SINR of the serving cell is smaller than the selection threshold corresponding to the SINR in at least one target selection threshold;
  • the RSCP of the serving cell is smaller than the selection threshold corresponding to the RSCP in at least one target selection threshold;
  • the Ec/No of the serving cell is smaller than the selection threshold corresponding to Ec/No in at least one target selection threshold.
  • Step 506 The terminal device determines whether to perform transmission based on enhanced uplink coverage on the target uplink carrier based on the request threshold.
  • the terminal device will receive the first request threshold and the second request threshold in the system message broadcast by the access network device. Based on the signal quality of the serving cell and the first request threshold or the second request threshold, the terminal device can determine whether to perform transmission based on enhanced uplink coverage on the selected target uplink carrier. Exemplarily, when at least one target selection threshold is rsrp-ThresholdSSB-SUL-CE, the first request threshold is rsrp-Threshold-SUL-CE, and the second request threshold is rsrp-Threshold-CE.
  • the transmission based on enhanced uplink coverage includes at least one of the following:
  • the target uplink carrier is SUL:
  • the terminal device determines whether to perform transmission based on enhanced uplink coverage on the target uplink carrier based on whether the signal quality of the serving cell is lower than the first request threshold.
  • the target uplink carrier is SUL and the signal quality of the serving cell is not less than the first request threshold, it is determined not to perform transmission based on enhanced uplink coverage on the target uplink carrier.
  • the target uplink carrier is SUL and the signal quality of the serving cell is lower than the first request threshold, it is determined to perform transmission based on enhanced uplink coverage on the target uplink carrier.
  • the terminal device will determine that the signal quality of the serving cell is less than the first request threshold:
  • the RSRP of the serving cell is smaller than the selection threshold corresponding to the RSRP in the first request threshold;
  • the RSRQ of the serving cell is smaller than the selection threshold corresponding to the RSRQ in the first request threshold;
  • the SINR of the serving cell is smaller than the selection threshold corresponding to the SINR in the first request threshold;
  • the RSCP of the serving cell is smaller than the selection threshold corresponding to the RSCP in the first request threshold;
  • the Ec/No of the serving cell is smaller than the selection threshold corresponding to Ec/No in the first request threshold.
  • the terminal device selects the SUL for transmission based on the enhanced uplink coverage, the terminal device will use the random access resource and/or preamble specific to the enhanced uplink coverage on the SUL to initiate random access. If the terminal device selects SUL but does not perform transmission based on enhanced uplink coverage, the terminal device will use traditional (legacy) random access resources and/or preambles to initiate random access. Traditional random access resources and/or preambles belong to normal uplink coverage.
  • the target uplink carrier is NUL:
  • the terminal device determines whether to perform transmission based on enhanced uplink coverage on the target uplink carrier based on whether the signal quality of the serving cell is smaller than the second request threshold.
  • the target uplink carrier is NUL and the signal quality of the serving cell is not less than the second request threshold, it is determined not to perform transmission based on enhanced uplink coverage on the target uplink carrier.
  • the target uplink carrier is NUL and the signal quality of the serving cell is less than the second request threshold, it is determined to perform transmission based on enhanced uplink coverage on the target uplink carrier.
  • the method for the terminal device to determine whether the signal quality of the serving cell is smaller than the second request threshold is the same as that of the first request threshold.
  • the number and types of request thresholds included in the first request threshold are the same as or different from the second request threshold.
  • the terminal device will use the random access resource and/or preamble specific to the enhanced uplink coverage on the NUL to initiate random access. If the terminal device selects NUL but does not perform transmission based on enhanced uplink coverage, the terminal device will use traditional random access resources and/or preambles to initiate random access. Traditional random access resources and/or preambles belong to normal uplink coverage.
  • FIG. 6 is a schematic diagram of coverage provided by an exemplary embodiment of the present application.
  • the coverage 601 determined according to the second request threshold is smaller than the coverage 602 determined according to the target selection threshold.
  • the coverage 602 determined according to the target selection threshold is smaller than the coverage 603 determined according to the first request threshold.
  • a terminal device supporting SUL and enhanced uplink coverage when it is within the coverage range 602 determined according to the target selection threshold, it will select NUL, and when it is outside the coverage range 602 determined according to the target selection threshold, it will select SUL.
  • NUL when it is within the coverage range 601 determined according to the second request threshold, it will not perform transmission based on enhanced uplink coverage; when it is outside the coverage range 601 determined according to the second request threshold, It will perform transmission based on enhanced uplink coverage.
  • SUL when it is within the coverage range 603 determined according to the first request threshold, it will not perform transmission based on enhanced uplink coverage; when it is outside the coverage range 603 determined according to the first request threshold, It will perform transmission based on enhanced uplink coverage.
  • a separate request threshold can be configured for the terminal device supporting enhanced uplink coverage, so that the terminal device can select an uplink carrier. In this way, it can be ensured that the terminal equipment supporting the enhanced uplink coverage can select the NUL for transmission based on the enhanced uplink coverage, so as to achieve the purpose of load balancing.
  • the terminal device can select the target selection threshold it uses to select the uplink carrier according to the actual situation, and the flexibility of the terminal device to select the uplink carrier can be improved.
  • the second type for the case where the terminal equipment supports SUL but does not support enhanced uplink coverage.
  • FIG. 7 shows a flowchart of a transmission method based on enhanced uplink coverage provided by an embodiment of the present application.
  • FIG. 7 illustrates an example in which the method is applied to the communication system shown in FIG. 1 .
  • the method includes:
  • Step 702 The core network device configures the second selection threshold for the terminal device.
  • the second selection threshold is used for a terminal device that supports SUL but does not support enhanced uplink coverage, and selects an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on normal uplink coverage.
  • the core network device also configures at least one target selection threshold or multiple selection thresholds for the terminal device.
  • the target selection threshold and multiple selection thresholds are configured for terminal devices that support SUL and enhanced uplink coverage.
  • the target selection threshold and multiple selection thresholds are used for terminal devices to select one of the uplink carriers in NUL and SUL, as an uplink carrier based on enhanced uplink coverage.
  • the target uplink carrier for transmission. At least one target selection threshold is different from the second selection threshold.
  • the core network device configures the second selection threshold for the terminal device through a system message broadcast by the access network device.
  • the core network device can also configure the second selection threshold for the terminal device based on the MAC CE message and the RRC message through the access network device.
  • Step 704 The terminal device uses the second selection threshold to select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on normal uplink coverage.
  • the terminal device receives the second selection threshold in the system message broadcast by the access network device.
  • the terminal device also receives at least one target selection threshold or multiple selection thresholds in the system message broadcast by the access network device.
  • the terminal device selects the selection threshold it uses according to the device capabilities it supports. Exemplarily, when the at least one target selection threshold includes one selection threshold, the at least one target selection threshold is rsrp-ThresholdSSB-SUL-CE, and the second selection threshold is rsrp-ThresholdSSB-SUL.
  • the terminal device uses the second selection threshold to select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on normal uplink coverage. If the signal quality of the serving cell is not less than the second selection threshold, the terminal device will select NUL as the target uplink carrier. When the signal quality of the serving cell is lower than the second selection threshold, the terminal device will select the SUL as the target uplink carrier.
  • the signal quality of the serving cell refers to the measured value of the RSRP of the serving cell.
  • the terminal device that does not support enhanced uplink coverage can be configured with a request threshold for its use, so that the terminal device selects an uplink carrier. Therefore, it can be ensured that the terminal equipment that does not support the enhanced uplink coverage can select the uplink carrier it uses.
  • the third type for the case where the terminal device supports SUL and enhanced uplink coverage, and first determines whether to perform transmission based on enhanced uplink coverage, and then selects an uplink carrier.
  • FIG. 8 shows a flowchart of a transmission method based on enhanced uplink coverage provided by an embodiment of the present application.
  • FIG. 8 exemplifies that the method is applied to the communication system shown in FIG. 1 .
  • the method includes:
  • Step 802 The core network device configures the second request threshold and at least one target selection threshold for the terminal device.
  • At least one target selection threshold is configured for a terminal device supporting SUL and enhanced uplink coverage, and at least one target selection threshold is used for the terminal device to select an uplink carrier among NUL and SUL as a target uplink for transmission based on enhanced uplink coverage carrier.
  • the core network device can also configure multiple selection thresholds for the terminal device, and the multiple selection thresholds are configured for the terminal device supporting SUL and enhanced uplink coverage.
  • the terminal device will select the at least one target selection threshold from the multiple selection thresholds.
  • the multiple selection thresholds include: a selection threshold corresponding to RSRP, a selection threshold corresponding to RSRQ, a selection threshold corresponding to SINR, a selection threshold corresponding to RSCP, and a selection threshold corresponding to Ec/No.
  • the core network device also configures the second selection threshold for the terminal device.
  • the second selection threshold is used for terminal equipment that supports SUL but does not support enhanced uplink coverage, selects one of the uplink carriers of NUL and SUL as the target uplink carrier for transmission based on normal uplink coverage, the target selection threshold and the second selection threshold different.
  • the second request threshold is used for a terminal device supporting SUL and enhanced uplink coverage to determine whether to perform transmission based on enhanced uplink coverage.
  • the second request threshold is different from the target selection threshold.
  • the second request threshold is smaller than the target selection threshold.
  • the second request threshold can also include multiple request thresholds.
  • the second request threshold includes at least one of a request threshold corresponding to RSRP, a request threshold corresponding to RSRQ, a request threshold corresponding to SINR, a request threshold corresponding to RSCP, and a request threshold corresponding to Ec/No.
  • the second request threshold is smaller than the target selection threshold, which means that the request thresholds in the second request threshold corresponding to the same type of QoS parameters as the target selection threshold are smaller than the target selection threshold.
  • the target selection threshold is rsrp-ThresholdSSB-SUL-CE
  • the second request threshold is rsrp-Threshold-CE.
  • the core network device configures at least one target selection threshold and the second request threshold for the terminal device through a system message broadcast by the access network device.
  • the core network device can also configure at least one target selection threshold for the terminal device based on the MAC CE message and the RRC message through the access network device.
  • the core network device configures at least one target selection threshold and the second request threshold for the terminal device at the same time, or configures the at least one target selection threshold and the second request threshold separately.
  • Step 804 The terminal device determines whether to perform transmission based on enhanced uplink coverage on the target uplink carrier based on the second request threshold.
  • the terminal device receives the second request threshold in the system message broadcast by the access network device. Based on the signal quality of the serving cell, the terminal device can determine whether to perform transmission based on enhanced uplink coverage.
  • the terminal device when the signal quality of the serving cell is not less than the second request threshold, the terminal device does not perform transmission based on enhanced uplink coverage. When the signal quality of the serving cell is less than the second request threshold, the terminal device performs transmission based on enhanced uplink coverage.
  • the signal quality of the serving cell refers to the measured value of the RSRP of the serving cell.
  • the terminal device when the second request threshold includes multiple request thresholds, if at least one or all of the following conditions are met, the terminal device will determine that the signal quality of the serving cell is less than the second request threshold:
  • the RSRP of the serving cell is smaller than the selection threshold corresponding to the RSRP in the second request threshold;
  • the RSRQ of the serving cell is smaller than the selection threshold corresponding to RSRQ in the second request threshold;
  • the SINR of the serving cell is smaller than the selection threshold corresponding to the SINR in the second request threshold;
  • the RSCP of the serving cell is smaller than the selection threshold corresponding to the RSCP in the second request threshold;
  • the Ec/No of the serving cell is smaller than the selection threshold corresponding to Ec/No in the second request threshold.
  • the transmission based on enhanced uplink coverage includes at least one of the following:
  • Step 806 The terminal device uses at least one target selection threshold to select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on enhanced uplink coverage.
  • the terminal device receives at least one target selection threshold in the system message broadcast by the access network device, and optionally, the terminal device also receives a second selection threshold in the system message broadcast by the access network device.
  • the terminal device selects the selection threshold it uses according to the device capabilities it supports. In the case that the terminal device supports SUL and enhanced uplink coverage, at least one target selection threshold is used to select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on enhanced uplink coverage.
  • At least one target selection threshold includes at least one of the following:
  • the selection threshold corresponding to RSRP The selection threshold corresponding to RSRP
  • the selection threshold corresponding to RSCP The selection threshold corresponding to RSCP
  • the at least one target selection threshold includes one selection threshold
  • the at least one target selection threshold is rsrp-ThresholdSSB-SUL-CE
  • the second selection threshold is rsrp-ThresholdSSB-SUL.
  • the terminal device When the signal quality of the serving cell is not less than the target selection threshold, the terminal device will select NUL as the target uplink carrier. When the signal quality of the serving cell is lower than the target selection threshold, the terminal device will select the SUL as the target uplink carrier.
  • the signal quality of the serving cell refers to a measured value of RSRP of the serving cell.
  • the terminal device will determine that the signal quality of the serving cell is less than at least one target selection threshold:
  • the RSRP of the serving cell is smaller than the selection threshold corresponding to the RSRP in at least one target selection threshold;
  • the RSRQ of the serving cell is smaller than the selection threshold corresponding to the RSRQ in at least one target selection threshold;
  • the SINR of the serving cell is smaller than the selection threshold corresponding to the SINR in at least one target selection threshold;
  • the RSCP of the serving cell is smaller than the selection threshold corresponding to the RSCP in at least one target selection threshold;
  • the Ec/No of the serving cell is smaller than the selection threshold corresponding to Ec/No in at least one target selection threshold.
  • the terminal device selects the SUL for transmission based on the enhanced uplink coverage, the terminal device will use the random access resource and/or preamble specific to the enhanced uplink coverage on the SUL to initiate random access. If the terminal device selects SUL but does not perform transmission based on enhanced uplink coverage, the terminal device will use traditional random access resources and/or preambles to initiate random access. Traditional random access resources and/or preambles belong to normal uplink coverage.
  • the terminal device will use the random access resources and/or preamble specific to enhanced uplink coverage on NUL to initiate random access. If the terminal device selects NUL but does not perform transmission based on enhanced uplink coverage, the terminal device will use traditional random access resources and/or preambles to initiate random access. Traditional random access resources and/or preambles belong to normal uplink coverage.
  • the target selection threshold for the terminal device by configuring the target selection threshold for the terminal device, it is possible to configure an individual request threshold for the terminal device supporting enhanced uplink coverage, so that the terminal device selects an uplink carrier. Prioritize whether to perform transmission based on enhanced uplink coverage, and then select the uplink carrier, which is beneficial to maximize the use of enhanced uplink coverage to compensate for NUL coverage, reduce the use of SUL, and avoid SUL congestion.
  • the terminal device can select the target selection threshold it uses to select the uplink carrier according to the actual situation, and the flexibility of the terminal device to select the uplink carrier can be improved.
  • Fig. 9 shows a block diagram of a transmission device based on enhanced uplink coverage provided by an embodiment of the present application. As shown in Figure 9, the device includes:
  • the selection module 901 is configured to use at least one target selection threshold to select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on enhanced uplink coverage.
  • the target selection threshold is configured for terminal equipment supporting SUL and enhanced uplink coverage.
  • module 901 is selected for:
  • NUL is selected as the target uplink carrier.
  • the signal quality of the serving cell is lower than the target selection threshold, select the SUL as the target uplink carrier.
  • At least one target selection threshold includes at least one of the following:
  • the selection threshold corresponding to RSRP The selection threshold corresponding to RSRP
  • the selection threshold corresponding to RSCP The selection threshold corresponding to RSCP
  • the signal quality of the serving cell is less than the target selection threshold includes: satisfying at least one or all of the following conditions:
  • the RSRP of the serving cell is smaller than the selection threshold corresponding to the RSRP in at least one target selection threshold;
  • the RSRQ of the serving cell is less than a selection threshold corresponding to RSRQ in at least one target selection threshold;
  • the SINR of the serving cell is less than a selection threshold corresponding to the SINR in at least one target selection threshold;
  • the RSCP of the serving cell is smaller than the selection threshold corresponding to the RSCP in at least one target selection threshold;
  • the Ec/No of the serving cell is smaller than a selection threshold corresponding to Ec/No in at least one target selection threshold.
  • module 901 is selected for:
  • At least one target selection threshold is used to select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on enhanced uplink coverage.
  • module 901 is selected for:
  • At least one target selection threshold is selected from the plurality of selection thresholds.
  • multiple selection thresholds are configured for terminal devices supporting SUL and enhanced uplink coverage.
  • the device also includes:
  • the determining module 902 is configured to determine whether to perform transmission based on enhanced uplink coverage on the target uplink carrier based on the signal quality of the serving cell.
  • the determining module 902 is used for:
  • the target uplink carrier is SUL
  • the target uplink carrier is NUL
  • the target uplink carrier is NUL
  • the first request threshold is different from the second request threshold
  • the first request threshold is different from the target selection threshold
  • the second request threshold is different from the target selection threshold.
  • the first request threshold is greater than the target selection threshold, and the second request threshold is smaller than the target selection threshold.
  • the determining module 902 is used for:
  • the target uplink carrier is SUL and the signal quality of the serving cell is not less than the first request threshold, it is determined not to perform transmission based on enhanced uplink coverage on the target uplink carrier.
  • the target uplink carrier is SUL and the signal quality of the serving cell is lower than the first request threshold, it is determined to perform transmission based on enhanced uplink coverage on the target uplink carrier.
  • the determining module 902 is used for:
  • the target uplink carrier is NUL and the signal quality of the serving cell is not less than the second request threshold, it is determined not to perform transmission based on enhanced uplink coverage on the target uplink carrier.
  • the target uplink carrier is NUL and the signal quality of the serving cell is less than the second request threshold, it is determined to perform transmission based on enhanced uplink coverage on the target uplink carrier.
  • module 901 is selected for:
  • the terminal device supports SUL but does not support enhanced uplink coverage
  • use the second selection threshold to select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on normal uplink coverage.
  • the target selection threshold is different from the second selection threshold.
  • the device also includes:
  • the determining module 902 is configured to determine whether to perform transmission based on enhanced uplink coverage based on the signal quality of the serving cell.
  • the determining module 902 is used for:
  • the signal quality of the serving cell is not less than the second request threshold, no transmission based on enhanced uplink coverage is performed.
  • the transmission based on the enhanced uplink coverage is performed.
  • the enhanced uplink coverage-based transmission includes at least one of the following:
  • FIG. 10 shows a block diagram of an apparatus for configuring a threshold provided by an embodiment of the present application. As shown in Figure 10, the device includes:
  • the sending module 1001 is configured to configure at least one target selection threshold for the terminal device.
  • the target selection threshold is configured for a terminal device supporting SUL and enhanced uplink coverage, and the target selection threshold is used for the terminal device to select an uplink carrier among NUL and SUL as a target uplink carrier for transmission based on enhanced uplink coverage.
  • At least one target selection threshold includes at least one of the following:
  • the selection threshold corresponding to RSRP The selection threshold corresponding to RSRP
  • the selection threshold corresponding to RSCP The selection threshold corresponding to RSCP
  • the sending module 1001 is used for:
  • the multiple selection thresholds are configured for terminal equipment supporting SUL and enhanced uplink coverage, and the multiple selection thresholds are used for the terminal equipment to select at least one target selection threshold.
  • the enhanced uplink coverage-based transmission includes at least one of the following:
  • the device provided by the above embodiment realizes its functions, it only uses the division of the above-mentioned functional modules as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • 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 110 includes: a processor 1101, a receiver 1102, a transmitter 1103, a memory 1104 and a bus 1105 .
  • the processor 1101 includes one or more processing cores, and the processor 1101 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1102 and the transmitter 1103 can be implemented as a communication component, which can be a communication chip.
  • the memory 1104 is connected to the processor 1101 through the bus 1105 .
  • the memory 1104 may be used to store at least one instruction, and the processor 1101 is used to execute the at least one instruction, so as to implement various steps in the foregoing method embodiments.
  • volatile or non-volatile storage devices include but not limited to: magnetic disk or optical disk, electrically erasable and programmable Read Only Memory (Erasable Programmable Read Only Memory, EEPROM), Erasable Programmable Read Only Memory (Erasable Programmable Read Only Memory, EPROM), Static Random Access Memory (SRAM), Read Only Memory (Read -Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).
  • the processor and the transceiver in the communication device involved in the embodiment of the present application may perform the steps performed by the terminal device in the method shown in any of the above method embodiments, where No longer.
  • the processor and the transceiver in the communication device involved in the embodiment of the present application may perform the steps performed by the core network device in any of the methods shown above. Let me repeat.
  • 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 program, the code set or instruction set is loaded and executed by the processor to implement the enhanced uplink coverage-based transmission method performed by the terminal device provided by the above method embodiments, or the threshold configuration performed by the core network device method.
  • 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 implement the above-mentioned terminal device based on A transmission method for enhancing uplink coverage, or a threshold configuration method performed by core network equipment.
  • a computer program product is also provided.
  • the computer program product runs on a processor of a computer device, the computer device executes the above transmission method based on enhanced uplink coverage, or the above threshold configuration method .
  • the functions described in the embodiments of the present application may be implemented by hardware, software, firmware or any combination thereof.
  • the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
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Abstract

本申请公开了一种基于增强上行覆盖的传输方法、门限的配置方法以及装置，涉及移动通信领域。该方法包括：使用至少一个目标选择门限选择正常上行载波NUL和补充上行载波SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波（302）；其中，目标选择门限是为支持SUL和增强上行覆盖的终端设备配置的。通过为终端设备配置目标选择门限，可以实现为支持增强上行覆盖的终端设备配置单独的请求门限，来使终端设备选择上行载波。从而能够保证支持增强上行覆盖的终端设备可以选择到NUL上进行基于增强上行覆盖的传输，达到负载均衡的目的。

Description

基于增强上行覆盖的传输方法、门限的配置方法以及装置 技术领域
本申请涉及移动通信领域，特别涉及一种基于增强上行覆盖的传输方法、门限的配置方法以及装置。
背景技术
第五代移动通信技术(5th Generation Mobile Communication Technology，5G)系统所用的频段的频点都比较高，比如毫米波等。频段越高，信号传输损耗越大。由于终端设备的发射功率是受限的，这就会导致终端设备的上行覆盖受限制。因此，5G系统引入了补充上行载波(Supplementary Uplink，SUL)。SUL相较于正常上行载波(Normal Uplink，NUL)，一般处于更低的频段，例如长期演进(Long Term Evolution，LTE)的频段。通过SUL能够避免终端设备的上行覆盖受限。
相关技术中，终端设备根据网络设备的指示，能够选择网络设备明确指示的上行载波进行上行传输。终端设备也能够根据服务小区的信号质量与网络设备广播的选择门限之间的大小关系，来选择终端设备使用的上行载波。针对不同的终端设备，网络设备会广播相同的选择门限，以使终端设备选择其使用的上行载波。
对于不同的终端设备，其支持的上行覆盖的能力存在差异。针对上述选择门限的设置，还需要进一步讨论研究。
发明内容
本申请实施例提供了一种基于增强上行覆盖的传输方法、门限的配置方法以及装置。所述技术方案如下：
根据本申请的一方面，提供了一种基于增强上行覆盖的传输方法，应用于终端设备，所述方法包括：
使用至少一个目标选择门限选择NUL和SUL中的一个上行载波，作为基于所述增强上行覆盖的传输的目标上行载波；
其中，所述目标选择门限是为支持所述SUL和所述增强上行覆盖的终端设备配置的。
根据本申请的另一方面，提供了一种门限的配置方法，应用于核心网设备，所述方法包括：
向终端设备配置至少一个目标选择门限；
其中，所述目标选择门限是为支持所述SUL和增强上行覆盖的终端设备配置的，所述目标选择门限用于所述终端设备选择NUL和SUL中的一个上行载波，作为基于所述增强上行覆盖的传输的目标上行载波。
根据本申请的另一方面，提供了一种基于增强上行覆盖的传输装置，所述装置包括：
选择模块，用于使用至少一个目标选择门限选择NUL和SUL中的一个上行载波，作为基于所述增强上行覆盖的传输的目标上行载波；
其中，所述目标选择门限是为支持所述SUL和所述增强上行覆盖的终端设备配置的。
根据本申请的另一方面，提供了一种门限的配置装置，所述装置包括：
发送模块，用于向终端设备配置至少一个目标选择门限；
其中，所述目标选择门限是为支持所述SUL和增强上行覆盖的终端设备配置的，所述目标选择门限用于所述终端设备选择NUL和SUL中的一个上行载波，作为基于所述增强上行覆盖的传输的目标上行载波。
根据本申请的另一方面，提供了一种终端，所述终端包括：处理器；与所述处理器相连的收发器；用于存储所述处理器的可执行指令的存储器；其中，所述处理器被配置为加载并执行所述可执行指令以实现如上述方面所述的基于增强上行覆盖的传输方法。
根据本申请的另一方面，提供了一种网络设备，所述网络设备包括：处理器；与所述处理器相连的收发器；用于存储所述处理器的可执行指令的存储器；其中，所述处理器被配置为加载并执行所述可执行指令以实现如上述方面所述的门限的配置方法。
根据本申请的另一方面，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，所述可执行指令由所述处理器加载并执行以实现如上述方面所述的基于增强上行覆盖的传输方法或门限的配置方法。
根据本申请的另一方面，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基于增强上行覆盖的传输方法或门限的配置方法。
根据本申请的另一方面，提供了一种计算机程序产品或计算机程序，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，使得计算机设备执行上述方面所述的基于增强上行覆盖的传输方法或门限的配置方法。
本申请提供的技术方案至少包括如下有益效果：
通过为终端设备配置目标选择门限，可以实现为支持增强上行覆盖的终端设备配置单独的请求门限，来使终端设备选择上行载波。从而能够保证支持增强上行覆盖的终端设备可以选择到NUL上进行基于增强上行覆盖的传输，达到负载均衡的目的。
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通信系统的系统架构的示意图；
图2是本申请一个示例性实施例提供的请求增强上行覆盖的过程的示意图；
图3是本申请一个示例性实施例提供的基于增强上行覆盖的传输方法的流程图；
图4是本申请一个示例性实施例提供的门限的配置方法的流程图；
图5是本申请一个示例性实施例提供的基于增强上行覆盖的传输方法的流程图；
图6是本申请一个示例性实施例提供的覆盖范围的示意图；
图7是本申请一个示例性实施例提供的基于增强上行覆盖的传输方法的流程图；
图8是本申请一个示例性实施例提供的基于增强上行覆盖的传输方法的流程图；
图9是本申请一个示例性实施例提供的基于增强上行覆盖的传输装置的框图；
图10是本申请一个示例性实施例提供的门限的配置装置的框图；
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。
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
在本公开使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开。在本公开和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
首先，对本申请实施例涉及的相关技术背景进行介绍：
对无线资源控制状态进行介绍：
随着对移动通信网络的速率、延迟、高速移动性、能效的追求不断提升，以及未来生活中业务的多样性、复杂性，第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)国际标准组织开启了对5G的研发。5G的主要应用场景包括：增强移动宽带(Enhanced Mobile Broadband，eMBB)、低时延高可靠通信(Ultra Reliable Low Latency Communications，URLLC)以及大规模机器通信(massive Machine Type of Communication，mMTC)。
新空口(New Radio，NR)可以独立部署。在5G网络环境中，为了实现降低空口信令，快速恢复无线连接，以及快速恢复数据业务的目的，定义一个新的无线资源控制(Radio Resource Control，RRC)状态，具体为RRC非活跃(RRC_INACTIVE)状态，这种状态有别于RRC空闲(RRC_IDLE)状态和RRC活跃(RRC_ACTIVE)状态。其中，每种RRC状态能够反映一种网络连接状态，并且描述了网络设备和终端如何处理终端移动、寻呼消息和系统信息广播。
RRC_IDLE：RRC_IDLE状态中的移动性指基于终端的小区选择重选。寻呼由核心网(Core Network， CN)设备发起，寻呼区域由CN设备配置。基站不存在终端接入层(Access Stratum，AS)上下文。不存在RRC连接。
RRC_CONNECTED：RRC_IDLE状态中存在RRC连接，基站和终端存在终端AS上下文。网络设备确定的终端的位置是小区级别的。移动性指网络设备控制的移动性。终端和基站之间可以传输单播数据。
RRC_INACTIVE：RRC_IDLE状态中的移动性指基于终端的小区选择重选，存在CN和NR之间的连接，终端AS上下文存在某个基站上，寻呼由无线接入网(Random Access Network，RAN)触发，基于RAN的寻呼区域由RAN管理，网络设备确定的终端的位置是基于RAN的寻呼区域级别的。
对补充上行载波进行介绍：
补充上行载波也可称为补充上行链路。通常，一个小区(Cell)一般包含上行载波(Uplink Carrier)和下行载波(Downlink Carrier)，上行载波和下行载波在同一个频段(Frequency Band)内。由于终端设备相较于网络设备，其发射功率有限，并且NR使用的频谱的频率又较高(频率越高，传播过程中的损失越高)，所以终端设备的上行覆盖会受限。为了提高NR高频带的上行覆盖，NR系统中引入了SUL。SUL的实现能够为NR系统利用LTE频谱(频率相对较低)作为上行，因此可以提高终端设备的上行覆盖。
两个上行载波和一个下行载波属于同一个小区，在同一时刻最多只存在基于一个上行载波的物理上行共享信道(Physical Uplink Shared Channel，PUSCH)进行传输。除非网络设备明确指示终端设备使用哪个上行载波，否则终端设备会根据选择门限与服务小区的信号质量的大小关系来选择其使用的上行载波。该选择门限通过网络设备的系统广播配置。该选择门限未考虑终端设备支持增强上行覆盖的情况。终端设备能够在两个上行载波之间动态切换，网络设备通过下行控制信息(Downlink Control Information，DCI)进行指示。
处于空闲(IDLE)状态和非活跃(INACTIVE)状态的终端设备，根据服务小区的信号质量与上述选择门限之间大小关系，能够选择NUL(也称为上行载波，NL)或SUL来进行初始接入。具体地，终端设备根据系统信息块(System Information Block，SIB)能够获取配置的选择门选，该选择门限为SIB中配置的rsrp-ThresholdSSB-SUL。如果服务小区信号质量测量结果小于该选择值，终端设备会选择SUL，否则终端设备会选择NUL。
对NR的增强上行覆盖进行介绍：
移动通信网络的覆盖是运营商关注的主要网络性能之一。与LTE相比，5G工作在更高的频段。例如：对于频率范围1(Frequency Rang 1，FR1)，工作频段为3.5GHz；对于频率范围2(Frequency Rang 2，FR2)，工作频段可能高达28GHz或者39GHz。工作频段越高，信号经历的路径损耗越大，导致网络覆盖范围变小。通常网络设备的发射功率远大于终端设备的发射功率，因此网络的上行覆盖面临更严重的覆盖受限的问题。当前NR中正在标准化上行覆盖增强，其中一个方面是针对随机接入过程中消息3(Message 3，Msg3)的物理上行共享信道(Physical Uplink Shared Channel，PUSCH)传输引入重复(repetition)传输的机制，以达到增强Msg3覆盖的目的。终端设备根据下行覆盖的情况能够判断是否进行重复传输，例如在参考信号接收功率(Reference Signal Receiving Power，RSRP)的测量值低于预配置的一个门限时，终端设备可以通过消息1(Message 1，Msg1)请求Msg3的PUSCH重复传输。网络设备在接收到该特定的Msg1后，即可以在消息2(Message 2，Msg2)中通过随机接入响应(Random Access Response，RAR)中的上行调度(Uplink grant，UL grant)为终端设备分配增强的用于重复传输的Msg3资源。
相关技术中，处于NR网络中的终端设备在选择SUL或NUL时并没有考虑增强上行覆盖的情况。在终端设备支持增强上行覆盖的情况下，由于Msg3的重复传输可以使用NUL或SUL，因此能够使NUL和SUL的覆盖进一步扩大。对于支持增强上行覆盖的终端设备来说，如果仍然沿用传统的上述选择门限，则终端设备可能选择不到NUL的增强上行覆盖区域。而终端设备选择到SUL上，这样可能会造成SUL上的拥塞。
图1示出了本申请一个实施例提供的通信系统的系统架构的示意图。该系统架构可以包括：终端设备10、接入网设备20和核心网设备30。
终端设备10可以指UE(User Equipment，用户设备)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、无线通信设备、用户代理或用户装置。可选地，终端设备还可以是蜂窝电话、无绳电话、SIP(Session Initiation Protocol，会话启动协议)电话、WLL(Wireless Local Loop，无线本地环路)站、PDA(Personal Digita1 Assistant，个人数字处理)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5GS(5th Generation System，第五代移动通信系统)中的终端设备或者未来演进的PLMN(Pub1ic Land Mobi1e Network，公用陆地移动通信网络)中的终端设备等，本申请实施例对此并不限定。为方便描述，上面提到的设备统称为终端设备。终端设备10的数量通常为多个，每一个接入网设备20所管理的小区内可以分布一个或多个终端设备10。
接入网设备20是一种部署在接入网中用以为终端设备10提供无线通信功能的设备。接入网设备20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，具备接入网设备功能的设备的名称可能会有所不同，例如在5G NR系统中，称为gNodeB或者gNB。随着通信技术的演进，“接入网设备”这一名称可能会变化。为方便描述，本申请实施例中，上述为终端设备10提供无线通信功能的装置统称为接入网设备。可选地，通过接入网设备20，终端设备10和核心网设备30之间可以建立通信关系。示例性地，在LTE系统中，接入网设备20可以是EUTRAN(Evolved Universal Terrestrial Radio Access Network，演进的通用陆地无线网)或者EUTRAN中的一个或者多个eNodeB；在5G NR系统中，接入网设备20可以是RAN或者RAN中的一个或者多个gNB。
核心网设备30的功能主要是提供用户连接、对用户的管理以及对业务完成承载，作为承载网络提供到外部网络的接口。例如，5G NR系统中的核心网设备可以包括AMF(Access and Mobility Management Function，接入和移动性管理功能)实体、UPF(User Plane Function，用户平面功能)实体和SMF(Session Management Function，会话管理功能)实体等设备。接入网设备20和核心网设备30可统称为网络设备。
在一个示例中，接入网设备20与核心网设备30之间通过某种空中技术相互通信，例如5G NR系统中的NG接口。接入网设备20与终端设备10之间通过某种空中技术互相通信，例如Uu接口。
以本申请实施例提供的方法用于如图1所示的通信系统为例，对本申请实施例提供的方法进行整体介绍。图2是本申请一个示例性实施例提供的请求增强上行覆盖的过程的示意图。如图2所示，在步骤S1中，终端设备接收网络设备广播的系统消息，并通过读取系统消息获取到网络设备配置的选择门限。可选地，核心网设备配置该选择门限，并通过接入网设备广播至终端设备。选择门限包括至少一个目标选择门限以及第二选择门限。其中，目标选择门限是为支持SUL和增强上行覆盖的终端设备配置的。第二选择门限是为支持SUL但不支持增强上行覆盖的终端设备配置的。增强上行覆盖指消息3的重复传输。可选地，终端设备还能够接收到多个选择门限，并在多个选择门限中选择出至少一个目标选择门限。在步骤S2中，终端设备触发随机接入的过程。在步骤S3中，终端设备基于自身支持的设备能力，判断其进行随机接入的具体过程。该设备能力包括是否支持SUL以及是否支持增强上行覆盖。
在终端设备支持SUL并且支持增强上行覆盖的情况下，终端设备能够先选择上行载波，再判断是否请求基于增强上行覆盖的传输。具体地，在步骤S4中，终端设备判断服务小区的信号质量是否小于目标选择门限。在步骤S41中，在服务小区的信号质量小于目标选择门限的情况下，终端设备会选择SUL。在步骤S42中，终端设备基于SUL上配置的第一请求门限与服务小区的信号质量的大小关系，判断是否使用SUL请求基于增强上行覆盖的传输。在步骤S43中，在服务小区的信号质量不小于目标选择门限的情况下，终端设备会选择NUL。在步骤S44中，终端设备基于NUL上配置的第二请求门限与服务小区的信号质量的大小关系，判断是否使用NUL请求基于增强上行覆盖的传输。
在终端设备支持SUL但不支持增强上行覆盖的情况下，在步骤S5中，终端设备判断服务小区的信号质量是否小于第二选择门限。在步骤S51中，在服务小区的信号质量小于第二选择门限的情况下，终端设备会选择SUL，之后使用SUL进行基于正常上行覆盖的传输。在步骤S52中，在服务小区的信号质量不小于第二选择门限的情况下，终端设备会选择NUL，之后使用NUL进行基于正常上行覆盖的传输。
在终端设备支持SUL并且支持增强上行覆盖的情况下，终端设备还能够先判断是否请求基于增强上行覆盖的传输，再选择上行载波。具体地，在步骤S61中，终端设备基于第二请求门限与服务小区的信号质量的大小关系判断是否请求基于增强上行覆盖的传输。在步骤S62中，终端设备在选择上行载波后，会基于目标选择门限与服务小区的信号质量的大小关系，从NUL和SUL中选择上行载波，并使用选择的上行载波来请求基于增强上行覆盖的传输。
需要说明的是，上述基于增强上行覆盖的传输指随机接入过程中消息3的重复传输，以及随机接入过程中基于消息1请求消息3的重复传输中的至少一种。网络设备会通过消息2指示终端设备请求的结果。核心网设备还会为终端设备配置第一请求门限以及第二请求门限，并通过接入网设备广播至终端设备。其中，第一请求门限是针对SUL配置的，第二请求门限是针对NUL配置的。至少一个目标选择门限能够包括一个或多个选择门限，例如针对不同的反映信号质量的参数，核心网设备会针对其配置一个目标选择门限。终端设备在判断服务小区的信号质量是否小于目标选择门限过程中，在一种服务小区的信号质量小于其在至少一个目标选择门限中对应的选择门限，或每种服务小区的信号质量均小于其在至少一个目标选择门限中对应的选择门限的情况下，终端设备会确定服务小区的信号质量小于目标选择门限。可选地，服务小区的信号质量包括服务小区的RSRP、服务小区的参考信号接收质量(Reference Signal Receiving Quality，RSRQ)、服务小区的信干噪比(Signal to Interference plus Noise Ratio，SINR)、服务小区的接收信号码功率(Received Signal Code Power，RSCP)以及服务小区的码片能量和总干扰能量密度的比值(Ec/No)中的至少一种。
在引入增强上行覆盖的情况下，通过为终端设备配置目标选择门限，可以实现为支持增强上行覆盖的终端设备配置单独的请求门限，来使终端设备选择上行载波。从而能够保证支持增强上行覆盖的终端设备可以选择到NUL上进行基于增强上行覆盖的传输，达到负载均衡的目的。另外，优先判断是否进行基于增强上行覆盖的传输，再选择上行载波，有利于最大限度的利用增强上行覆盖来补偿NUL的覆盖，减少对SUL的使用，避免SUL出现拥塞的情况。
图3示出了本申请一个实施例提供的基于增强上行覆盖的传输方法的流程图。图3以该方法应用于图1所示的通信系统中的终端设备来举例说明。该方法包括：
步骤302：使用至少一个目标选择门限选择NUL和SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波。
该至少一个目标选择门限是核心网设备通过接入网设备基于广播的系统消息，为支持SUL和增强上行覆盖的终端设备配置的。可选地，核心网设备还能够通过接入网设备基于多址接入信道控制元素(Multiple Access Channel Control Element，MAC CE)消息，以及RRC消息等实现为终端设备配置至少一个目标选择门限。
可选地，核心网设备还能够为终端设备配置多个选择门限，该多个选择门限是为支持SUL和增强上行覆盖的终端设备配置的。终端设备会在多个选择门限中选择出该至少一个目标选择门限。可选地，多个选择门限包括：与RSRP对应的选择门限、与RSRQ对应的选择门限、与SINR对应的选择门限、与RSCP对应的选择门限以及与Ec/No对应的选择门限中的多个。
示例性地，终端设备根据网络设备的指示，能够从多个选择门限中选择网络设备指示的至少一个目标选择门限。或者，终端设备根据其测量的反映服务小区的信号质量的参数的类型，从多个选择门限中选择出至少一个目标选择门限。例如终端设备测量服务小区的RSRP以及RSRQ，用以衡量服务小区的信号质量，则终端设备会在多个选择门限中选择与RSRP对应的选择门限以及与RSRQ对应的选择门限。可选地，服务小区的信号质量包括服务小区的RSRP、服务小区的RSRQ、服务小区的SINR、服务小区的RSCP以及服务小区的Ec/No中的至少一种。
核心网设备还会配置第二选择门限，第二选择门限为支持SUL但不支持增强上行覆盖的终端设备配置的。支持增强上行覆盖指支持消息3的重复传输。
至少一个目标选择门限能够包括一个或多个选择门限，例如至少一个目标选择门限包括如下至少之一：
·与RSRP对应的选择门限；
·与RSRQ对应的选择门限；
·与SINR对应的选择门限；
·与RSCP对应的选择门限；
·与Ec/No对应的选择门限。
可选地，在终端设备的服务小区的信号质量小于目标选择门限的情况下，终端设备会选择SUL。在终端设备的服务小区的信号质量不小于目标选择门限的情况下，终端设备会选择NUL。该终端设备支持SUL以及增强上行覆盖。
示例性地，在上述至少一个目标选择门限包括一个选择门限的情况下，至少一个目标选择门限为rsrp-ThresholdSSB-SUL-CE，其是针对使用RSRP衡量小区的信号质量的情况配置的。上述第二选择门限能够为rsrp-ThresholdSSB-SUL。终端设备根据rsrp-ThresholdSSB-SUL-CE与服务小区的RSRP之间的大小关系，进行上述上行载波的选择的过程。
在至少一个目标选择门限包括多个选择门限的情况下，若满足如下至少一个条件或所有条件，终端设备会确定服务小区的信号质量小于目标选择门限：
·服务小区的RSRP小于至少一个目标选择门限中与RSRP对应的选择门限；
·服务小区的RSRQ小于至少一个目标选择门限中与RSRQ对应的选择门限；
·服务小区的SINR小于至少一个目标选择门限中与SINR对应的选择门限；
·服务小区的RSCP小于至少一个目标选择门限中与RSCP对应的选择门限；
·服务小区的Ec/No小于至少一个目标选择门限中与Ec/No对应的选择门限。
基于增强上行覆盖的传输包括在随机接入过程中，对消息3的重复传输。以及，在随机接入过程中，基于消息1请求消息3的重复传输中的至少一种。可选地，终端设备在选择上行载波后，还能够使用上行载波进行基于正常上行覆盖的传输。
终端设备能够在选择NUL和SUL之前确定是否进行基于增强上行覆盖的传输，或者，在选择NUL和SUL之后确定是否进行基于增强上行覆盖的传输。
在终端设备在选择NUL和SUL之前确定是否进行基于增强上行覆盖的传输的情况下，在选择NUL和SUL中的目标上行载波后。终端设备会根据目标上行载波对应的请求门限与服务小区的信号质量之间的大小关系，判断是否使用目标上行载波进行基于增强上行覆盖的传输。其中，SUL对应第一请求门限，NUL对应第二请求门限，第一请求门限与第二请求门限不同。第一请求门限和目标选择门限不同，第二请求门限和目标选择门限不同。例如，第一请求门限大于目标选择门限，第二请求门限小于目标选择门限。
可选地，第一请求门限与第二请求门限也分别能够包括多个请求门限，例如第一请求门限和第二请求门限也包括对应不同类型的衡量服务质量的参数的请求门限。示例地，第一请求门限包括与RSRP对应的请求门限、与RSRQ对应的请求门限、与SINR对应的请求门限、与RSCP对应的请求门限以及与Ec/No对应的请求门限中的至少一种。第一请求门限大于目标选择门限，指第一请求门限中与目标选择门限对应相同类型的衡量服务质量的参数的请求门限，大于目标选择门限。例如第一请求门限中对应RSRP的请求门限大于rsrp-ThresholdSSB-SUL-CE。第二请求门限与第一请求门限同理。终端设备在选择上行载波过程中使用的服务小区的信号质量的类型，与判断是否使用目标上行载波进行基于增强上行覆盖的传输的过程中使用的服务小区的信号质量的类型相同或不同。
示例性地，在至少一个目标选择门限为rsrp-ThresholdSSB-SUL-CE的情况下，第一请求门限为rsrp-Threshold-SUL-CE，第二请求门限为rsrp-Threshold-CE。第一请求门限以及第二请求门限是核心网设备为终端设备配置的。核心网设备通过接入网设备向终端设备广播系统消息从而实现为终端设备配置上述请求门限，系统消息包括第一请求门限以及第二请求门限。
在终端设备在选择NUL和SUL之前确定是否进行基于增强上行覆盖的传输的情况下，终端设备会根据第二请求门限与服务小区的信号之间的大小关系，判断是否进行基于增强上行覆盖的传输，之后再在NUL和SUL中选择载波，作为基于增强上行覆盖的传输的目标上行载波。
另外，在终端设备支持SUL但不支持增强上行覆盖的情况下，终端设备会使用第二选择门限来在SUL和NUL中选择上行载波，并使用选择的上行载波进行基于正常上行覆盖的传输。
综上所述，本实施例提供的方法，通过为终端设备配置目标选择门限，可以实现为支持增强上行覆盖的终端设备配置单独的请求门限，来使终端设备选择上行载波。从而能够保证支持增强上行覆盖的终端设备可以选择到NUL上进行基于增强上行覆盖的传输，达到负载均衡的目的。
图4示出了本申请一个实施例提供的门限的配置方法的流程图。图4以该方法应用于图1所示的通信系统中的核心网设备来举例说明。该方法包括：
步骤402：向终端设备配置至少一个目标选择门限。
其中，目标选择门限是为支持SUL和增强上行覆盖的终端设备配置的，目标选择门限用于终端设备选择NUL和SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波。支持增强上行覆盖指支持消息3的重复传输。可选地，核心网设备通过接入网设备向终端设备广播的系统消息，实现向终端设备配置至少一个目标选择门限。核心网设备还能够通过接入网设备基于MAC CE消息，以及RRC消息等实现为终端设备配置至少一个目标选择门限。
可选地，核心网设备还会向终端设备配置多个选择门限。其中，多个选择门限是为支持SUL和增强上行覆盖的终端设备配置的，多个选择门限用于终端设备选择出至少一个目标选择门限。
可选地，核心网设备还会向终端设备配置第二选择门限。其中，第二选择门限用于支持SUL但不支持增强上行覆盖的终端设备，选择NUL和SUL中的一个上行载波，作为基于正常上行覆盖的传输的目标上行载波，目标选择门限和第二选择门限不同。不支持增强上行覆盖的终端设备，可称为传统(legacy)的终端设备。
至少一个目标选择门限包括一个选择门限或多个选择门限。至少一个目标选择门限包括如下至少之一：
·与RSRP对应的选择门限；
·与RSRQ对应的选择门限；
·与SINR对应的选择门限；
·与RSCP对应的选择门限；
·与Ec/No对应的选择门限。
可选地，在上述至少一个目标选择门限包括一个选择门限的情况下，至少一个目标选择门限为rsrp-ThresholdSSB-SUL-CE，上述第二选择门限能够为rsrp-ThresholdSSB-SUL。
基于增强上行覆盖的传输包括在随机接入过程中，对消息3的重复传输。以及，在随机接入过程中，基于消息1请求消息3的重复传输中的至少一种。可选地，在终端设备的服务小区的信号质量小于目标选择门限的情况下，终端设备会选择SUL。在终端设备的服务小区的信号质量不小于目标选择门限的情况下， 终端设备会选择NUL。该终端设备支持SUL以及增强上行覆盖。
综上所述，本实施例提供的方法，通过为终端设备配置目标选择门限，可以实现为支持增强上行覆盖的终端设备配置单独的请求门限，来使终端设备选择上行载波。从而能够保证支持增强上行覆盖的终端设备可以选择到NUL上进行基于增强上行覆盖的传输，达到负载均衡的目的。
核心网设备能够向支持SUL以及增强上行覆盖的终端设备，配置至少一个目标选择门限。终端设备根据该至少一个目标选择门限能够选择NUL和SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波。并且还能够确定是否进行基于增强上行覆盖的传输。可分为终端设备先选择上行载波，再确定是否进行基于增强上行覆盖的传输。以及，终端设备先确定是否进行基于增强上行覆盖的传输，再选择上行载波这两种情况。另外，核心网设备还能够向支持SUL但不支持增强上行覆盖的终端设备，配置第二选择门限。终端设备根据该第二选择门限能够选择NUL和SUL中的一个上行载波，作为基于正常上行覆盖的传输的目标上行载波。以下通过三个实施例对上述三种情况进行说明：
第一种：针对终端设备支持SUL以及增强上行覆盖，并先选择上行载波，再确定是否进行基于增强上行覆盖的传输的情况。
图5示出了本申请一个实施例提供的基于增强上行覆盖的传输方法的流程图。图5以该方法应用于图1所示的通信系统来举例说明。该方法包括：
步骤502：核心网设备向终端设备配置至少一个目标选择门限以及请求门限。
其中，至少一个目标选择门限是为支持SUL和增强上行覆盖的终端设备配置的，至少一个目标选择门限用于终端设备选择NUL和SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波。
可选地，核心网设备还能够为终端设备配置多个选择门限，该多个选择门限是为支持SUL和增强上行覆盖的终端设备配置的。终端设备会在多个选择门限中选择出该至少一个目标选择门限。多个选择门限包括：与RSRP对应的选择门限、与RSRQ对应的选择门限、与SINR对应的选择门限、与RSCP对应的选择门限以及与Ec/No对应的选择门限中的多个。可选地，核心网设备还会向终端设备配置第二选择门限。其中，第二选择门限用于支持SUL但不支持增强上行覆盖的终端设备，选择NUL和SUL中的一个上行载波，作为基于正常上行覆盖的传输的目标上行载波，目标选择门限和第二选择门限不同。
该请求门限用于终端设备确定是否在选择的NUL和SUL中的目标上行载波进行基于增强上行覆盖的传输。可选地，核心网设备向终端设备配置请求门限，指向终端设备配置第一请求门限以及第二请求门限。第一请求门限是针对SUL配置的，第二请求门限是针对NUL配置的，第一请求门限与第二请求门限不同。第一请求门限和目标选择门限不同，第二请求门限和目标选择门限不同。例如，第一请求门限大于目标选择门限，第二请求门限小于目标选择门限。可选地，第一请求门限与第二请求门限也分别能够包括多个请求门限。示例地，第一请求门限包括与RSRP对应的请求门限、与RSRQ对应的请求门限、与SINR对应的请求门限、与RSCP对应的请求门限以及与Ec/No对应的请求门限中的至少一种。第一请求门限大于目标选择门限，指第一请求门限中与目标选择门限对应相同类型的衡量服务质量的参数的请求门限，大于目标选择门限。第二请求门限与第一请求门限同理。
可选地，核心网设备通过接入网设备广播的系统消息，实现向终端设备配置至少一个目标选择门限以及请求门限。核心网设备还能够通过接入网设备基于MAC CE消息，以及RRC消息等实现为终端设备配置至少一个目标选择门限。可选地，核心网设备同时向终端设备配置至少一个目标选择门限以及请求门限，或者，分开配置至少一个目标选择门限以及请求门限。
步骤504：终端设备使用至少一个目标选择门限选择NUL和SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波。
终端设备接收接入网设备广播的系统消息中的至少一个目标选择门限，可选地，终端设备还会接收到接入网设备广播的系统消息中的第二选择门限。终端设备根据自身支持的设备能力，选择其使用的选择门限。在终端设备支持SUL和增强上行覆盖的情况下，使用至少一个目标选择门限选择NUL和SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波。
可选地，至少一个目标选择门限包括如下至少之一：
·与RSRP对应的选择门限；
·与RSRQ对应的选择门限；
·与SINR对应的选择门限；
·与RSCP对应的选择门限；
·与Ec/No对应的选择门限。
示例性地，在至少一个目标选择门限包括一个选择门限的情况下，至少一个目标选择门限为rsrp-ThresholdSSB-SUL-CE，第二选择门限为rsrp-ThresholdSSB-SUL。
在服务小区的信号质量不小于目标选择门限的情况下，终端设备会选择NUL作为目标上行载波。在服务小区的信号质量小于目标选择门限的情况下，终端设备会选择SUL作为目标上行载波。
可选地，在至少一个目标选择门限包括一个选择门限的情况下，服务小区的信号质量指服务小区的RSRP的测量值。在至少一个目标选择门限包括多个选择门限的情况下，若满足如下至少一个条件或所有条件，终端设备会确定服务小区的信号质量小于至少一个目标选择门限：
·服务小区的RSRP小于至少一个目标选择门限中与RSRP对应的选择门限；
·服务小区的RSRQ小于至少一个目标选择门限中与RSRQ对应的选择门限；
·服务小区的SINR小于至少一个目标选择门限中与SINR对应的选择门限；
·服务小区的RSCP小于至少一个目标选择门限中与RSCP对应的选择门限；
·服务小区的Ec/No小于至少一个目标选择门限中与Ec/No对应的选择门限。
步骤506：终端设备基于请求门限确定是否在目标上行载波进行基于增强上行覆盖的传输。
终端设备会接收接入网设备广播的系统消息中的第一请求门限以及第二请求门限。基于服务小区的信号质量以及该第一请求门限或第二请求门限，终端设备能够确定是否在选择的目标上行载波进行基于增强上行覆盖的传输。示例性地，在至少一个目标选择门限为rsrp-ThresholdSSB-SUL-CE的情况下，第一请求门限为rsrp-Threshold-SUL-CE，第二请求门限为rsrp-Threshold-CE。
基于增强上行覆盖的传输包括以下至少之一：
在随机接入过程中，对消息3的重复传输；
在随机接入过程中，基于消息1请求消息3的重复传输。
针对目标上行载波为SUL的情况：
在目标上行载波为SUL的情况下，终端设备基于服务小区的信号质量是否小于第一请求门限，确定是否在目标上行载波进行基于增强上行覆盖的传输。
具体地，在目标上行载波为SUL，以及服务小区的信号质量不小于第一请求门限的情况下，确定不在目标上行载波进行基于增强上行覆盖的传输。在目标上行载波为SUL，以及服务小区的信号质量小于第一请求门限的情况下，确定在目标上行载波进行基于增强上行覆盖的传输。
在第一请求门限包括多个请求门限的情况下，若满足如下至少一个条件或所有条件，终端设备会确定服务小区的信号质量小于第一请求门限：
·服务小区的RSRP小于第一请求门限中与RSRP对应的选择门限；
·服务小区的RSRQ小于第一请求门限中与RSRQ对应的选择门限；
·服务小区的SINR小于第一请求门限中与SINR对应的选择门限；
·服务小区的RSCP小于第一请求门限中与RSCP对应的选择门限；
·服务小区的Ec/No小于第一请求门限中与Ec/No对应的选择门限。
若终端设备选择SUL进行基于增强上行覆盖的传输，终端设备会使用SUL上增强上行覆盖特有的随机接入资源和/或前导码发起随机接入。若终端设备选择SUL但不进行基于增强上行覆盖的传输，终端设备会使用传统(legacy)的随机接入资源和/或前导码发起随机接入。传统的随机接入资源和/或前导码属于正常上行覆盖。
针对目标上行载波为NUL的情况：
在目标上行载波为NUL的情况下，终端设备基于服务小区的信号质量是否小于第二请求门限，确定是否在目标上行载波进行基于增强上行覆盖的传输。
具体地，在目标上行载波为NUL，以及服务小区的信号质量不小于第二请求门限的情况下，确定不在目标上行载波进行基于增强上行覆盖的传输。在目标上行载波为NUL，以及服务小区的信号质量小于第二请求门限的情况下，确定在目标上行载波进行基于增强上行覆盖的传输。
在第二请求门限包括多个请求门限的情况下，终端设备判断服务小区的信号质量是否小于第二请求门限的方式与第一请求门限相同。第一请求门限包括的请求门限的数量和类型与第二请求门限相同或不同。
若终端设备选择NUL进行基于增强上行覆盖的传输，终端设备会使用NUL上增强上行覆盖特有的随机接入资源和/或前导码发起随机接入。若终端设备选择NUL但不进行基于增强上行覆盖的传输，终端设备会使用传统的随机接入资源和/或前导码发起随机接入。传统的随机接入资源和/或前导码属于正常上行覆盖。
示例地，图6是本申请一个示例性实施例提供的覆盖范围的示意图。如图6所示，以目标选择门限与请求门限均为与RSRP对应的门限为例，对于同一个基站，根据第二请求门限确定的覆盖范围601，小于根据目标选择门限确定的覆盖范围602。根据目标选择门限确定的覆盖范围602，小于根据第一请求门限确定的覆盖范围603。对于支持SUL以及增强上行覆盖的终端设备，当其处于根据目标选择门限确定的覆盖范围602内时，会选择NUL，当其处于根据目标选择门限确定的覆盖范围602外时，会选择SUL。对 于选择NUL的终端设备，当其处于根据第二请求门限确定的覆盖范围601内时，其不会进行基于增强上行覆盖的传输，当其处于根据第二请求门限确定的覆盖范围601外时，其会进行基于增强上行覆盖的传输。对于选择SUL的终端设备，当其处于根据第一请求门限确定的覆盖范围603内时，其不会进行基于增强上行覆盖的传输，当其处于根据第一请求门限确定的覆盖范围603外时，其会进行基于增强上行覆盖的传输。
综上所述，本实施例提供的方法，通过为终端设备配置目标选择门限，可以实现为支持增强上行覆盖的终端设备配置单独的请求门限，来使终端设备选择上行载波。从而能够保证支持增强上行覆盖的终端设备可以选择到NUL上进行基于增强上行覆盖的传输，达到负载均衡的目的。
另外，通过为终端设备配置多个选择门限，能够使终端设备根据实际情况选择其使用的目标选择门限来进行上行载波的选择，能够提升终端设备进行上行载波的选择的灵活性。
第二种：针对终端设备支持SUL但不支持增强上行覆盖的情况。
图7示出了本申请一个实施例提供的基于增强上行覆盖的传输方法的流程图。图7以该方法应用于图1所示的通信系统来举例说明。该方法包括：
步骤702：核心网设备向终端设备配置第二选择门限。
其中，第二选择门限用于支持SUL但不支持增强上行覆盖的终端设备，选择NUL和SUL中的一个上行载波，作为基于正常上行覆盖的传输的目标上行载波。可选地，核心网设备还会向终端设备配置至少一个目标选择门限或多个选择门限。目标选择门限以及多个选择门限是为支持SUL和增强上行覆盖的终端设备配置的，目标选择门限以及多个选择门限用于终端设备选择NUL和SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波。至少一个目标选择门限和第二选择门限不同。
可选地，核心网设备通过接入网设备广播的系统消息，实现向终端设备配置第二选择门限。核心网设备还能够通过接入网设备基于MAC CE消息，以及RRC消息等实现为终端设备配置第二选择门限。
步骤704：终端设备使用第二选择门限选择NUL和SUL中的一个上行载波，作为基于正常上行覆盖的传输的目标上行载波。
终端设备接收接入网设备广播的系统消息中的第二选择门限，可选地，终端设备还会接收到接入网设备广播的系统消息中的至少一个目标选择门限或多个选择门限。终端设备根据自身支持的设备能力，选择其使用的选择门限。示例性地，在至少一个目标选择门限包括一个选择门限的情况下，至少一个目标选择门限为rsrp-ThresholdSSB-SUL-CE，第二选择门限为rsrp-ThresholdSSB-SUL。
在终端设备支持SUL但不支持增强上行覆盖的情况下，终端设备使用第二选择门限选择NUL和SUL中的一个上行载波，作为基于正常上行覆盖的传输的目标上行载波。在服务小区的信号质量不小于第二选择门限的情况下，终端设备会选择NUL作为目标上行载波。在服务小区的信号质量小于第二选择门限的情况下，终端设备会选择SUL作为目标上行载波。服务小区的信号质量指服务小区的RSRP的测量值。
综上所述，本实施例提供的方法，通过为终端设备配置第二选择门限，可以实现为不支持增强上行覆盖的终端设备配置其使用的请求门限，来使终端设备选择上行载波。从而能够保证不支持增强上行覆盖的终端设备能够选择到其使用的上行载波。
第三种：针对终端设备支持SUL以及增强上行覆盖，并先确定是否进行基于增强上行覆盖的传输，再选择上行载波的情况。
图8示出了本申请一个实施例提供的基于增强上行覆盖的传输方法的流程图。图8以该方法应用于图1所示的通信系统来举例说明。该方法包括：
步骤802：核心网设备向终端设备配置第二请求门限以及至少一个目标选择门限。
其中，至少一个目标选择门限是为支持SUL和增强上行覆盖的终端设备配置的，至少一个目标选择门限用于终端设备选择NUL和SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波。
可选地，核心网设备还能够为终端设备配置多个选择门限，该多个选择门限是为支持SUL和增强上行覆盖的终端设备配置的。终端设备会在多个选择门限中选择出该至少一个目标选择门限。多个选择门限包括：与RSRP对应的选择门限、与RSRQ对应的选择门限、与SINR对应的选择门限、与RSCP对应的选择门限以及与Ec/No对应的选择门限中的多个。可选地，核心网设备还会向终端设备配置第二选择门限。其中，第二选择门限用于支持SUL但不支持增强上行覆盖的终端设备，选择NUL和SUL中的一个上行载波，作为基于正常上行覆盖的传输的目标上行载波，目标选择门限和第二选择门限不同。
第二请求门限，用于支持SUL和增强上行覆盖的终端设备确定是否进行基于增强上行覆盖的传输。第二请求门限和目标选择门限不同。例如，第二请求门限小于目标选择门限。可选地，第二请求门限也能够包括多个请求门限。示例地，第二请求门限包括与RSRP对应的请求门限、与RSRQ对应的请求门限、与SINR对应的请求门限、与RSCP对应的请求门限以及与Ec/No对应的请求门限中的至少一种。第二请求 门限小于目标选择门限，指第二请求门限中与目标选择门限对应相同类型的衡量服务质量的参数的请求门限，小于目标选择门限。例如目标选择门限为rsrp-ThresholdSSB-SUL-CE，第二请求门限为rsrp-Threshold-CE。
可选地，核心网设备通过接入网设备广播的系统消息，实现向终端设备配置至少一个目标选择门限以及第二请求门限。核心网设备还能够通过接入网设备基于MAC CE消息，以及RRC消息等实现为终端设备配置至少一个目标选择门限。可选地，核心网设备同时向终端设备配置至少一个目标选择门限以及第二请求门限，或者，分开配置至少一个目标选择门限以及第二请求门限。
步骤804：终端设备基于第二请求门限确定是否在目标上行载波进行基于增强上行覆盖的传输。
终端设备接收接入网设备广播的系统消息中的第二请求门限。基于服务小区的信号质量，终端设备能够确定是否进行基于增强上行覆盖的传输。
具体地，在服务小区的信号质量不小于第二请求门限的情况下，终端设备不进行基于增强上行覆盖的传输。在服务小区的信号质量小于第二请求门限的情况下，终端设备进行基于增强上行覆盖的传输。服务小区的信号质量指服务小区的RSRP的测量值。
可选地，在第二请求门限包括多个请求门限的情况下，若满足如下至少一个条件或所有条件，终端设备会确定服务小区的信号质量小于第二请求门限：
·服务小区的RSRP小于第二请求门限中与RSRP对应的选择门限；
·服务小区的RSRQ小于第二请求门限中与RSRQ对应的选择门限；
·服务小区的SINR小于第二请求门限中与SINR对应的选择门限；
·服务小区的RSCP小于第二请求门限中与RSCP对应的选择门限；
·服务小区的Ec/No小于第二请求门限中与Ec/No对应的选择门限。
基于增强上行覆盖的传输包括以下至少之一：
在随机接入过程中，对消息3的重复传输；
在随机接入过程中，基于消息1请求消息3的重复传输。
步骤806：终端设备使用至少一个目标选择门限选择NUL和SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波。
终端设备接收接入网设备广播的系统消息中的至少一个目标选择门限，可选地，终端设备还会接收到接入网设备广播的系统消息中的第二选择门限。终端设备根据自身支持的设备能力，选择其使用的选择门限。在终端设备支持SUL和增强上行覆盖的情况下，使用至少一个目标选择门限选择NUL和SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波。
可选地，至少一个目标选择门限包括如下至少之一：
·与RSRP对应的选择门限；
·与RSRQ对应的选择门限；
·与SINR对应的选择门限；
·与RSCP对应的选择门限；
·与Ec/No对应的选择门限。
在至少一个目标选择门限包括一个选择门限的情况下，至少一个目标选择门限为rsrp-ThresholdSSB-SUL-CE，第二选择门限为rsrp-ThresholdSSB-SUL。
在服务小区的信号质量不小于目标选择门限的情况下，终端设备会选择NUL作为目标上行载波。在服务小区的信号质量小于目标选择门限的情况下，终端设备会选择SUL作为目标上行载波。
可选地，在至少一个目标选择门限包括一个选择门限的情况下，服务小区的信号质量指服务小区的RSRP的测量值。在至少一个目标选择门限包括多个选择门限的情况下，若满足如下至少一个条件或所有条件，终端设备会确定服务小区的信号质量小于至少一个目标选择门限：
·服务小区的RSRP小于至少一个目标选择门限中与RSRP对应的选择门限；
·服务小区的RSRQ小于至少一个目标选择门限中与RSRQ对应的选择门限；
·服务小区的SINR小于至少一个目标选择门限中与SINR对应的选择门限；
·服务小区的RSCP小于至少一个目标选择门限中与RSCP对应的选择门限；
·服务小区的Ec/No小于至少一个目标选择门限中与Ec/No对应的选择门限。
若终端设备选择SUL进行基于增强上行覆盖的传输，终端设备会使用SUL上增强上行覆盖特有的随机接入资源和/或前导码发起随机接入。若终端设备选择SUL但不进行基于增强上行覆盖的传输，终端设备会使用传统的随机接入资源和/或前导码发起随机接入。传统的随机接入资源和/或前导码属于正常上行覆盖。
若终端设备选择NUL进行基于增强上行覆盖的传输，终端设备会使用NUL上增强上行覆盖特有的随 机接入资源和/或前导码发起随机接入。若终端设备选择NUL但不进行基于增强上行覆盖的传输，终端设备会使用传统的随机接入资源和/或前导码发起随机接入。传统的随机接入资源和/或前导码属于正常上行覆盖。
综上所述，本实施例提供的方法，通过为终端设备配置目标选择门限，可以实现为支持增强上行覆盖的终端设备配置单独请求门限，来使终端设备选择上行载波。优先判断是否进行基于增强上行覆盖的传输，再选择上行载波，有利于最大限度的利用增强上行覆盖来补偿NUL的覆盖，减少对SUL的使用，避免SUL出现拥塞的情况。
另外，通过为终端设备配置多个选择门限，能够使终端设备根据实际情况选择其使用的目标选择门限来进行上行载波的选择，能够提升终端设备进行上行载波的选择的灵活性。
上述各个实施例可以单独实施，也可以自由组合实施。
图9示出了本申请一个实施例提供的基于增强上行覆盖的传输装置的框图。如图9所示，该装置包括：
选择模块901，用于使用至少一个目标选择门限选择NUL和SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波。其中，目标选择门限是为支持SUL和增强上行覆盖的终端设备配置的。
在一个可选的设计中，选择模块901，用于：
在服务小区的信号质量不小于目标选择门限的情况下，选择NUL作为目标上行载波。在服务小区的信号质量小于目标选择门限的情况下，选择SUL作为目标上行载波。
在一个可选的设计中，至少一个目标选择门限包括如下至少之一：
与RSRP对应的选择门限；
与RSRQ对应的选择门限；
与SINR对应的选择门限；
与RSCP对应的选择门限；
与Ec/No对应的选择门限。
在一个可选的设计中，服务小区的信号质量小于目标选择门限包括：满足如下至少一个条件或所有条件：
服务小区的RSRP小于至少一个目标选择门限中与RSRP对应的选择门限；
服务小区的RSRQ小于至少一个目标选择门限中与RSRQ对应的选择门限；
服务小区的SINR小于至少一个目标选择门限中与SINR对应的选择门限；
服务小区的RSCP小于至少一个目标选择门限中与RSCP对应的选择门限；
服务小区的Ec/No小于至少一个目标选择门限中与Ec/No对应的选择门限。
在一个可选的设计中，选择模块901，用于：
在终端设备支持SUL和增强上行覆盖的情况下，使用至少一个目标选择门限选择NUL和SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波。
在一个可选的设计中，选择模块901，用于：
从多个选择门限中选择出至少一个目标选择门限。其中，多个选择门限是为支持SUL和增强上行覆盖的终端设备配置的。
在一个可选的设计中，装置还包括：
确定模块902，用于基于服务小区的信号质量，确定是否在目标上行载波进行基于增强上行覆盖的传输。
在一个可选的设计中，确定模块902，用于：
在目标上行载波为SUL的情况下，基于服务小区的信号质量是否小于第一请求门限，确定是否在目标上行载波进行基于增强上行覆盖的传输。在目标上行载波为NUL的情况下，基于服务小区的信号质量是否小于第二请求门限，确定是否在目标上行载波进行基于增强上行覆盖的传输。其中，第一请求门限和第二请求门限不同，第一请求门限和目标选择门限不同，第二请求门限和目标选择门限不同。
在一个可选的设计中，第一请求门限大于目标选择门限，第二请求门限小于目标选择门限。
在一个可选的设计中，确定模块902，用于：
在目标上行载波为SUL，以及服务小区的信号质量不小于第一请求门限的情况下，确定不在目标上行载波进行基于增强上行覆盖的传输。在目标上行载波为SUL，以及服务小区的信号质量小于第一请求门限的情况下，确定在目标上行载波进行基于增强上行覆盖的传输。
在一个可选的设计中，确定模块902，用于：
在目标上行载波为NUL，以及服务小区的信号质量不小于第二请求门限的情况下，确定不在目标上行载波进行基于增强上行覆盖的传输。在目标上行载波为NUL，以及服务小区的信号质量小于第二请求门限 的情况下，确定在目标上行载波进行基于增强上行覆盖的传输。
在一个可选的设计中，选择模块901，用于：
在终端设备支持SUL但不支持增强上行覆盖的情况下，使用第二选择门限选择NUL和SUL中的一个上行载波，作为基于正常上行覆盖的传输的目标上行载波。其中，目标选择门限和第二选择门限不同。
在一个可选的设计中，装置还包括：
确定模块902，用于基于服务小区的信号质量，确定是否进行基于增强上行覆盖的传输。
在一个可选的设计中，确定模块902，用于：
在服务小区的信号质量不小于第二请求门限的情况下，不进行基于增强上行覆盖的传输。在服务小区的信号质量小于第二请求门限的情况下，进行基于增强上行覆盖的传输。
在一个可选的设计中，基于增强上行覆盖的传输包括以下至少之一：
在随机接入过程中，对消息3的重复传输；
在随机接入过程中，基于消息1请求消息3的重复传输。
图10示出了本申请一个实施例提供的门限的配置装置的框图。如图10所示，该装置包括：
发送模块1001，用于向终端设备配置至少一个目标选择门限。其中，目标选择门限是为支持SUL和增强上行覆盖的终端设备配置的，目标选择门限用于终端设备选择NUL和SUL中的一个上行载波，作为基于增强上行覆盖的传输的目标上行载波。
在一个可选的设计中，至少一个目标选择门限包括如下至少之一：
与RSRP对应的选择门限；
与RSRQ对应的选择门限；
与SINR对应的选择门限；
与RSCP对应的选择门限；
与Ec/No对应的选择门限。
在一个可选的设计中，发送模块1001，用于：
向终端设备配置多个选择门限。其中，多个选择门限是为支持SUL和增强上行覆盖的终端设备配置的，多个选择门限用于终端设备选择出至少一个目标选择门限。
在一个可选的设计中，基于增强上行覆盖的传输包括以下至少之一：
在随机接入过程中，对消息3的重复传输；
在随机接入过程中，基于消息1请求消息3的重复传输。
需要说明的一点是，上述实施例提供的装置在实现其功能时，仅以上述各个功能模块的划分进行举例说明，实际应用中，可以根据实际需要而将上述功能分配由不同的功能模块完成，即将设备的内容结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
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110包括：处理器1101、接收器1102、发射器1103、存储器1104和总线1105。
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以及信息处理。
接收器1102和发射器1103可以实现为一个通信组件，该通信组件可以是一块通信芯片。
存储器1104通过总线1105与处理器1101相连。
存储器1104可用于存储至少一个指令，处理器1101用于执行该至少一个指令，以实现上述方法实施例中的各个步骤。
此外，存储器1104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：磁盘或光盘，电可擦除可编程只读存储器(Erasable Programmable Read Only Memory，EEPROM)，可擦除可编程只读存储器(Erasable Programmable Read Only Memory，EPROM)，静态随时存取存储器(Static Random Access Memory，SRAM)，只读存储器(Read-Only Memory，ROM)，磁存储器，快闪存储器，可编程只读存储器(Programmable Read-Only Memory，PROM)。
其中，当通信设备实现为终端设备时，本申请实施例涉及的通信设备中的处理器和收发器，可以执行上述任一方法实施例所示的方法中，由终端设备执行的步骤，此处不再赘述。
其中，当通信设备实现为核心网设备时，本申请实施例涉及的通信设备中的处理器和收发器，可以执行上述任一所示的方法中，由核心网设备执行的步骤，此处不再赘述。
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所述处理器加载并执行以实现上述各个方法实施例提供的由终端设备执行的基于增强上行覆盖的传输方法，或核心网设备执行的门限的配置方法。
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，用于实现如上述由终端设备执行的基于增强上行覆盖的传输方法，或核心网设备执行的门限的配置方法。
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，使得计算机设备执行上述基于增强上行覆盖的传输方法，或者，上述门限的配置方法。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述仅为本申请的示例性实施例，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 (43)

  1. 一种基于增强上行覆盖的传输方法，其特征在于，应用于终端设备，所述方法包括：
    使用至少一个目标选择门限选择正常上行载波NUL和补充上行载波SUL中的一个上行载波，作为基于所述增强上行覆盖的传输的目标上行载波；
    其中，所述目标选择门限是为支持所述SUL和所述增强上行覆盖的终端设备配置的。
  2. 根据权利要求1所述的方法，其特征在于，所述使用至少一个目标选择门限选择NUL和SUL中的一个上行载波，作为基于所述增强上行覆盖的传输的目标上行载波，包括：
    在服务小区的信号质量不小于所述目标选择门限的情况下，选择所述NUL作为所述目标上行载波；
    在所述服务小区的信号质量小于所述目标选择门限的情况下，选择所述SUL作为所述目标上行载波。
  3. 根据权利要求2所述的方法，其特征在于，所述至少一个目标选择门限包括如下至少之一：
    与参考信号接收功率RSRP对应的选择门限；
    与参考信号接收质量RSRQ对应的选择门限；
    与信干噪比SINR对应的选择门限；
    与接收信号码功率RSCP对应的选择门限；
    与码片能量和总干扰能量密度的比值Ec/No对应的选择门限。
  4. 根据权利要求3所述的方法，其特征在于，所述服务小区的信号质量小于所述目标选择门限包括：满足如下至少一个条件或所有条件：
    所述服务小区的RSRP小于所述至少一个目标选择门限中与所述RSRP对应的选择门限；
    所述服务小区的RSRQ小于所述至少一个目标选择门限中与所述RSRQ对应的选择门限；
    所述服务小区的SINR小于所述至少一个目标选择门限中与所述SINR对应的选择门限；
    所述服务小区的RSCP小于所述至少一个目标选择门限中与所述RSCP对应的选择门限；
    所述服务小区的Ec/No小于所述至少一个目标选择门限中与所述Ec/No对应的选择门限。
  5. 根据权利要求1所述的方法，其特征在于，所述使用至少一个目标选择门限选择NUL和SUL中的一个上行载波，作为基于所述增强上行覆盖的传输的目标上行载波，包括：
    在所述终端设备支持所述SUL和所述增强上行覆盖的情况下，使用所述至少一个目标选择门限选择所述NUL和所述SUL中的一个上行载波，作为所述基于增强上行覆盖的传输的目标上行载波。
  6. 根据权利要求1至5任一所述的方法，其特征在于，所述使用至少一个目标选择门限选择NUL和SUL中的一个上行载波之前，还包括：
    从多个选择门限中选择出所述至少一个目标选择门限；
    其中，所述多个选择门限是为支持所述SUL和所述增强上行覆盖的终端设备配置的。
  7. 根据权利要求1至5任一所述的方法，其特征在于，所述使用至少一个目标选择门限选择NUL和SUL中的一个上行载波之后，还包括：
    基于服务小区的信号质量，确定是否在所述目标上行载波进行基于所述增强上行覆盖的传输。
  8. 根据权利要求7所述的方法，其特征在于，所述基于服务小区的信号质量，确定是否在所述目标上行载波进行基于所述增强上行覆盖的传输，包括：
    在所述目标上行载波为所述SUL的情况下，基于所述服务小区的信号质量是否小于第一请求门限，确定是否在所述目标上行载波进行基于所述增强上行覆盖的传输；
    在所述目标上行载波为所述NUL的情况下，基于所述服务小区的信号质量是否小于第二请求门限，确定是否在所述目标上行载波进行基于所述增强上行覆盖的传输；
    其中，所述第一请求门限和所述第二请求门限不同，所述第一请求门限和所述目标选择门限不同，所述第二请求门限和所述目标选择门限不同。
  9. 根据权利要求8所述的方法，其特征在于，所述第一请求门限大于所述目标选择门限，所述第二请求门限小于所述目标选择门限。
  10. 根据权利要求8所述的方法，其特征在于，所述在所述目标上行载波为所述SUL的情况下，基于所述服务小区的信号质量是否小于第一请求门限，确定是否在所述目标上行载波进行基于所述增强上行覆盖的传输，包括：
    在所述目标上行载波为所述SUL，以及所述服务小区的信号质量不小于所述第一请求门限的情况下，确定不在所述目标上行载波进行基于所述增强上行覆盖的传输；
    在所述目标上行载波为所述SUL，以及所述服务小区的信号质量小于所述第一请求门限的情况下，确定在所述目标上行载波进行基于所述增强上行覆盖的传输。
  11. 根据权利要求8所述的方法，其特征在于，所述在所述目标上行载波为所述NUL的情况下，基于所述服务小区的信号质量是否小于第二请求门限，确定是否在所述目标上行载波进行基于所述增强上行覆盖的传输，包括：
    在所述目标上行载波为所述NUL，以及所述服务小区的信号质量不小于所述第二请求门限的情况下，确定不在所述目标上行载波进行基于所述增强上行覆盖的传输；
    在所述目标上行载波为所述NUL，以及所述服务小区的信号质量小于所述第二请求门限的情况下，确定在所述目标上行载波进行基于所述增强上行覆盖的传输。
  12. 根据权利要求1至5任一所述的方法，其特征在于，所述方法还包括：
    在所述终端设备支持所述SUL但不支持所述增强上行覆盖的情况下，使用第二选择门限选择所述NUL和所述SUL中的一个上行载波，作为基于正常上行覆盖的传输的目标上行载波；
    其中，所述目标选择门限和所述第二选择门限不同。
  13. 根据权利要求1至5任一所述的方法，其特征在于，所述使用至少一个目标选择门限选择NUL和SUL中的一个上行载波之前，还包括：
    基于服务小区的信号质量，确定是否进行基于所述增强上行覆盖的传输。
  14. 根据权利要求13所述的方法，其特征在于，所述基于服务小区的信号质量，确定是否进行基于所述增强上行覆盖的传输，包括：
    在所述服务小区的信号质量不小于第二请求门限的情况下，不进行基于所述增强上行覆盖的传输；
    在所述服务小区的信号质量小于所述第二请求门限的情况下，进行基于所述增强上行覆盖的传输。
  15. 根据权利要求1至14任一所述的方法，其特征在于，所述基于增强上行覆盖的传输包括以下至少之一：
    在随机接入过程中，对消息3的重复传输；
    在所述随机接入过程中，基于消息1请求所述消息3的重复传输。
  16. 一种门限的配置方法，其特征在于，应用于核心网设备，所述方法包括：
    向终端设备配置至少一个目标选择门限；
    其中，所述目标选择门限是为支持SUL和增强上行覆盖的终端设备配置的，所述目标选择门限用于所述终端设备选择NUL和所述SUL中的一个上行载波，作为基于所述增强上行覆盖的传输的目标上行载波。
  17. 根据权利要求16所述的方法，其特征在于，所述至少一个目标选择门限包括如下至少之一：
    与RSRP对应的选择门限；
    与RSRQ对应的选择门限；
    与SINR对应的选择门限；
    与RSCP对应的选择门限；
    与Ec/No对应的选择门限。
  18. 根据权利要求16所述的方法，其特征在于，所述方法还包括：
    向所述终端设备配置多个选择门限；
    其中，所述多个选择门限是为支持所述SUL和所述增强上行覆盖的终端设备配置的，所述多个选择门限用于所述终端设备选择出所述至少一个目标选择门限。
  19. 根据权利要求16至18任一所述的方法，其特征在于，所述基于增强上行覆盖的传输包括以下至少 之一：
    在随机接入过程中，对消息3的重复传输；
    在所述随机接入过程中，基于消息1请求所述消息3的重复传输。
  20. 一种基于增强上行覆盖的传输装置，其特征在于，所述装置包括：
    选择模块，用于使用至少一个目标选择门限选择NUL和SUL中的一个上行载波，作为基于所述增强上行覆盖的传输的目标上行载波；
    其中，所述目标选择门限是为支持所述SUL和所述增强上行覆盖的终端设备配置的。
  21. 根据权利要求20所述的装置，其特征在于，所述选择模块，用于：
    在服务小区的信号质量不小于所述目标选择门限的情况下，选择所述NUL作为所述目标上行载波；
    在所述服务小区的信号质量小于所述目标选择门限的情况下，选择所述SUL作为所述目标上行载波。
  22. 根据权利要求21所述的装置，其特征在于，所述至少一个目标选择门限包括如下至少之一：
    与RSRP对应的选择门限；
    与RSRQ对应的选择门限；
    与SINR对应的选择门限；
    与RSCP对应的选择门限；
    与Ec/No对应的选择门限。
  23. 根据权利要求22所述的装置，其特征在于，所述服务小区的信号质量小于所述目标选择门限包括：满足如下至少一个条件或所有条件：
    所述服务小区的RSRP小于所述至少一个目标选择门限中与所述RSRP对应的选择门限；
    所述服务小区的RSRQ小于所述至少一个目标选择门限中与所述RSRQ对应的选择门限；
    所述服务小区的SINR小于所述至少一个目标选择门限中与所述SINR对应的选择门限；
    所述服务小区的RSCP小于所述至少一个目标选择门限中与所述RSCP对应的选择门限；
    所述服务小区的Ec/No小于所述至少一个目标选择门限中与所述Ec/No对应的选择门限。
  24. 根据权利要求20所述的装置，其特征在于，所述选择模块，用于：
    在所述终端设备支持所述SUL和所述增强上行覆盖的情况下，使用所述至少一个目标选择门限选择所述NUL和所述SUL中的一个上行载波，作为所述基于增强上行覆盖的传输的目标上行载波。
  25. 根据权利要求20至24任一所述的装置，其特征在于，所述选择模块，用于：
    从多个选择门限中选择出所述至少一个目标选择门限；
    其中，所述多个选择门限是为支持所述SUL和所述增强上行覆盖的终端设备配置的。
  26. 根据权利要求20至24任一所述的装置，其特征在于，所述装置还包括：
    确定模块，用于基于服务小区的信号质量，确定是否在所述目标上行载波进行基于所述增强上行覆盖的传输。
  27. 根据权利要求26所述的装置，其特征在于，所述确定模块，用于：
    在所述目标上行载波为所述SUL的情况下，基于所述服务小区的信号质量是否小于第一请求门限，确定是否在所述目标上行载波进行基于所述增强上行覆盖的传输；
    在所述目标上行载波为所述NUL的情况下，基于所述服务小区的信号质量是否小于第二请求门限，确定是否在所述目标上行载波进行基于所述增强上行覆盖的传输；
    其中，所述第一请求门限和所述第二请求门限不同，所述第一请求门限和所述目标选择门限不同，所述第二请求门限和所述目标选择门限不同。
  28. 根据权利要求27所述的装置，其特征在于，所述第一请求门限大于所述目标选择门限，所述第二请求门限小于所述目标选择门限。
  29. 根据权利要求27所述的装置，其特征在于，所述确定模块，用于：
    在所述目标上行载波为所述SUL，以及所述服务小区的信号质量不小于所述第一请求门限的情况下， 确定不在所述目标上行载波进行基于所述增强上行覆盖的传输；
    在所述目标上行载波为所述SUL，以及所述服务小区的信号质量小于所述第一请求门限的情况下，确定在所述目标上行载波进行基于所述增强上行覆盖的传输。
  30. 根据权利要求27所述的装置，其特征在于，所述确定模块，用于：
    在所述目标上行载波为所述NUL，以及所述服务小区的信号质量不小于所述第二请求门限的情况下，确定不在所述目标上行载波进行基于所述增强上行覆盖的传输；
    在所述目标上行载波为所述NUL，以及所述服务小区的信号质量小于所述第二请求门限的情况下，确定在所述目标上行载波进行基于所述增强上行覆盖的传输。
  31. 根据权利要求20至24任一所述的装置，其特征在于，所述选择模块，用于：
    在所述终端设备支持所述SUL但不支持所述增强上行覆盖的情况下，使用第二选择门限选择所述NUL和所述SUL中的一个上行载波，作为基于正常上行覆盖的传输的目标上行载波；
    其中，所述目标选择门限和所述第二选择门限不同。
  32. 根据权利要求20至24任一所述的装置，其特征在于，所述装置还包括：
    确定模块，用于基于服务小区的信号质量，确定是否进行基于所述增强上行覆盖的传输。
  33. 根据权利要求32所述的装置，其特征在于，所述确定模块，用于：
    在所述服务小区的信号质量不小于第二请求门限的情况下，不进行基于所述增强上行覆盖的传输；
    在所述服务小区的信号质量小于所述第二请求门限的情况下，进行基于所述增强上行覆盖的传输。
  34. 根据权利要求20至33任一所述的装置，其特征在于，所述基于增强上行覆盖的传输包括以下至少之一：
    在随机接入过程中，对消息3的重复传输；
    在所述随机接入过程中，基于消息1请求所述消息3的重复传输。
  35. 一种门限的配置装置，其特征在于，所述装置包括：
    发送模块，用于向终端设备配置至少一个目标选择门限；
    其中，所述目标选择门限是为支持所述SUL和增强上行覆盖的终端设备配置的，所述目标选择门限用于所述终端设备选择NUL和SUL中的一个上行载波，作为基于所述增强上行覆盖的传输的目标上行载波。
  36. 根据权利要求35所述的装置，其特征在于，所述至少一个目标选择门限包括如下至少之一：
    与RSRP对应的选择门限；
    与RSRQ对应的选择门限；
    与SINR对应的选择门限；
    与RSCP对应的选择门限；
    与Ec/No对应的选择门限。
  37. 根据权利要求35所述的装置，其特征在于，所述发送模块，用于：
    向所述终端设备配置多个选择门限；
    其中，所述多个选择门限是为支持所述SUL和所述增强上行覆盖的终端设备配置的，所述多个选择门限用于所述终端设备选择出所述至少一个目标选择门限。
  38. 根据权利要求35至37任一所述的装置，其特征在于，所述基于增强上行覆盖的传输包括以下至少之一：
    在随机接入过程中，对消息3的重复传输；
    在所述随机接入过程中，基于消息1请求所述消息3的重复传输。
  39. 一种终端，其特征在于，所述终端包括：
    处理器；
    与所述处理器相连的收发器；
    用于存储所述处理器的可执行指令的存储器；
    其中，所述处理器被配置为加载并执行所述可执行指令以实现如权利要求1至15中任一所述的基于增强上行覆盖的传输方法。
  40. 一种网络设备，其特征在于，所述网络设备包括：
    处理器；
    与所述处理器相连的收发器；
    用于存储所述处理器的可执行指令的存储器；
    其中，所述处理器被配置为加载并执行所述可执行指令以实现如权利要求16至19中任一所述的门限的配置方法。
  41. 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15中任一所述的基于增强上行覆盖的传输方法，或权利要求16至19中任一所述的门限的配置方法。
  42. 一种芯片，其特征在于，所述芯片包括可编程逻辑电路或程序，所述芯片用于实现如权利要求1至15中任一所述的基于增强上行覆盖的传输方法，或权利要求16至19中任一所述的门限的配置方法。
  43. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机指令，所述计算机指令存储在计算机可读存储介质中，计算机设备的处理器从所述计算机可读存储介质读取所述计算机指令，所述处理器执行所述计算机指令，使得所述计算机设备执行如权利要求1至15中任一所述的基于增强上行覆盖的传输方法，或权利要求16至19中任一所述的门限的配置方法。
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