WO2021088034A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2021088034A1
WO2021088034A1 PCT/CN2019/116821 CN2019116821W WO2021088034A1 WO 2021088034 A1 WO2021088034 A1 WO 2021088034A1 CN 2019116821 W CN2019116821 W CN 2019116821W WO 2021088034 A1 WO2021088034 A1 WO 2021088034A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
pusch resource
random access
paging message
configuration
Prior art date
Application number
PCT/CN2019/116821
Other languages
English (en)
French (fr)
Inventor
徐小英
曾清海
黄曲芳
酉春华
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201980101487.3A priority Critical patent/CN114557107A/zh
Priority to EP19951806.9A priority patent/EP4040903A4/en
Priority to PCT/CN2019/116821 priority patent/WO2021088034A1/zh
Publication of WO2021088034A1 publication Critical patent/WO2021088034A1/zh
Priority to US17/738,973 priority patent/US20220264520A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a communication method and device.
  • terminal equipment has three radio resource control (radio resource control, RRC) states, namely RRC connected (RRC-connected) state, RRC idle (RRC-idle) state and inactive state ( inactive state).
  • RRC radio resource control
  • RRC connected RRC-connected
  • RRC idle RRC idle
  • inactive state inactive state
  • the embodiments of the present application provide a communication method and device to improve data transmission efficiency.
  • a communication method includes: when a terminal device receives a paging message from the terminal device, determining a first PUSCH resource for transmitting a paging response according to a pre-configuration and/or a paging message , And send a paging response to the access network device on the first PUSCH resource.
  • the terminal device determines the first PUSCH resource according to the pre-configuration and/or paging message.
  • the access network device sends the first PUSCH resource indication information to the terminal device after sending the paging message, so that the paging response can be transmitted as soon as possible.
  • the paging response carries the identity verification information of the terminal device, so that the identity verification of the terminal device can be performed as soon as possible, and the transmission delay of the downlink data is reduced.
  • the above-mentioned first PUSCH resource is pre-configured, and the first PUSCH resource can be pre-configured in the following manner. Specifically: the terminal device receives the first configuration information from the access network device, and the first configuration The information is used to configure the first PUSCH resource; the terminal device determines the first PUSCH resource according to the first configuration information.
  • the first configuration information may be a broadcast message, and when the first configuration information is a broadcast message, the first PUSCH resource is shared by all terminal devices. When the terminal device changes cells, the first PUSCH resource is still available, and there is no need to frequently configure the first PUSCH resource for the terminal device.
  • the first PUSCH resource is determined according to the paging message, and the terminal device may determine the first PUSCH resource according to the configuration information of the first PUSCH resource carried in the paging message.
  • the terminal device can be notified to use the first PUSCH resource to transmit the paging response without additional signaling overhead, thereby reducing signaling overhead.
  • the first PUSCH resource is determined according to pre-configuration and paging messages.
  • the terminal device receives second configuration information from the access network device, the second configuration information is used to configure at least one PUSCH resource; the terminal device determines the first PUSCH resource according to the paging message.
  • the paging message may only carry part of the configuration information of the first PUSCH resource, or may not carry the configuration information of the first PUSCH resource at all. Compared with carrying all the configuration information of the first PUSCH resource in the paging message, the overhead of the paging message can be reduced.
  • each PUSCH resource in at least one PUSCH resource corresponds to an index
  • the paging message carries the first index
  • the terminal device determines the first PUSCH resource according to the paging message, including: the terminal device according to The first index, among at least one PUSCH resource, select the first PUSCH resource, and the first PUSCH resource corresponds to the first index.
  • each PUSCH resource in at least one PUSCH resource corresponds to a terminal device identifier
  • the paging message carries the identifier of the paged terminal device
  • the terminal device determines the first PUSCH resource according to the paging message , Including: the terminal device selects the first PUSCH resource from the at least one PUSCH resource according to the identity of the paged terminal device carried in the paging message, and the first PUSCH resource corresponds to the identity of the paged terminal device.
  • the above method since the paging message carries the identification of the paged terminal device in the existing random access procedure, the above method does not increase the overhead of the paging message at all.
  • each PUSCH in at least one PUSCH resource corresponds to a random access preamble identifier
  • the paging message carries the first random access preamble identifier
  • the terminal device determines the first random access preamble identifier according to the paging message.
  • the PUSCH resource includes: the terminal device selects the first PUSCH resource from at least one PUSCH resource according to the first random access preamble identifier, and the first PUSCH resource corresponds to the first random access preamble identifier.
  • the first PUSCH resource is determined according to pre-configuration and paging messages, and further includes: the terminal device receives third configuration information from the access network device, and the third configuration information is used to configure the first PUSCH The part of the time-frequency domain resource in the resource; the paging message carries the remaining part of the time-frequency domain resource in the first PUSCH resource, and the terminal device determines the remaining part of the time-frequency domain resource in the first PUSCH resource according to the paging message; the terminal; The device determines the first PUSCH resource according to the part of the time-frequency domain resource in the first PUSCH resource and the remaining part of the time-frequency domain resource in the first PUSCH resource.
  • the first PUSCH resource is pre-configured.
  • the first PUSCH resource can be pre-configured in the following manner.
  • the specific terminal device receives the fourth configuration information from the access network device, and the fourth configuration information is used for The random access preamble, the time-frequency domain resources of the random access preamble, and the first PUSCH resource are configured; the terminal device determines the first PUSCH resource according to the fourth configuration information.
  • the fourth configuration information can also be referred to as random access configuration, or 2-step RACH configuration, or message A configuration. Because the above configuration is in the existing random access configuration. Therefore, in the embodiment of the present application, the PUSCH resource in the existing random access configuration can be used for transmitting the paging response and reduce the signaling overhead.
  • the first PUSCH resource is determined according to the paging message, the paging message carries fifth configuration information, and the fifth configuration information is used to configure the random access preamble and random access preamble.
  • the terminal device determines the first PUSCH resource according to the fifth configuration information carried in the paging message.
  • the first PUSCH resource is determined based on pre-configuration and paging messages, which can be implemented in the following manner: the terminal device receives the sixth configuration information from the access network device, and the sixth configuration information is used for configuration The random access preamble, the time-frequency domain resources of the random access preamble, and the part of the time-frequency domain resources in the first PUSCH resource; the paging message carries the remaining part of the time-frequency domain resources in the first PUSCH resource, and the terminal The device determines the remaining part of the time-frequency resource in the first PUSCH resource according to the paging message; the terminal device determines the first PUSCH resource according to the part of the time-frequency domain resource in the first PUSCH resource and the remaining part of the time-frequency domain resource in the first PUSCH resource.
  • a PUSCH resource is determined based on pre-configuration and paging messages, which can be implemented in the following manner: the terminal device receives the sixth configuration information from the access network device, and the sixth configuration information is used for configuration The random
  • the first PUSCH resource is determined according to pre-configuration and paging messages, which can be implemented in the following manner: the terminal device receives the seventh configuration information from the access network device, and the seventh configuration information is used for configuration At least one random access configuration, each random access configuration includes: random access preamble, time-frequency domain resources of the random access preamble, and time-frequency domain resources of PUSCH; terminal equipment from at least one random access preamble according to the paging message In the access configuration, the first random access configuration is determined, and the first random access configuration includes the first PUSCH resource; the terminal device determines the first PUSCH resource according to the first random access configuration.
  • each random access configuration in at least one random access configuration corresponds to an index
  • the paging message carries the first index
  • the terminal device selects from the at least one random access configuration according to the paging message.
  • Determining the first random access configuration includes: the terminal device selects the first random access configuration from at least one random access configuration according to the first index, and the first random access configuration corresponds to the first index.
  • each random access configuration in at least one random access configuration corresponds to a terminal device identification
  • the paging message carries the identification of the paged terminal device
  • the terminal device starts at least
  • determining the first random access configuration includes: the terminal device selects the first random access configuration from at least one random access configuration according to the identification of the paged terminal device, and the first random access The configuration corresponds to the identification of the paged terminal device.
  • each random access configuration in at least one random access configuration corresponds to a random access preamble identifier
  • the paging message carries the first random access preamble identifier
  • the terminal equipment The message, determining the first random access configuration from at least one random access configuration, includes: the terminal device selects the first random access configuration from the at least one random access configuration according to the first random access preamble identifier, The first random access configuration corresponds to the first random access preamble identifier.
  • the terminal device uses the time-frequency domain resources of the random access preamble to send the random access preamble to the access network device; or, when the timing advance TA is invalid, the terminal device uses the random access The time-frequency domain resource of the preamble sends a random access preamble to the access network device.
  • the terminal device since the TA time is effective, the synchronization of the terminal equipment and the network equipment can be maintained.
  • the terminal device will send the random access preamble to the access network device. That is, when the TA is valid, the terminal device will not send the random access preamble to the access network device, which can reduce the signaling overhead.
  • the terminal device receives a random access preamble response message from the access network device, and the random access preamble response message includes downlink data.
  • the way of carrying the downlink data in the response of the random access preamble can realize the early transmission of the downlink data and reduce the time delay of the downlink data.
  • the paging message includes the downlink data early transmission indication or the random access preamble identifier
  • the terminal device uses the first PUSCH resource to send a paging response to the access network device, including: the terminal device sends a paging response to the access network device according to the downlink data
  • the early data transmission indication or the random access preamble identifier sends a paging response to the access network device in the first PUSCH resource.
  • the paging response is a non-access stratum NAS message
  • the identity verification information of the terminal device is generated based on the NAS security key of the terminal device.
  • the access network device can perform identity verification on the terminal device, avoiding sending downlink data to the fraudulent terminal device.
  • the paging response is a radio resource control RRC message
  • the identity verification information of the terminal device is generated according to one or more of the following parameters: the access layer key of the terminal device, the source cell of the terminal device The physical cell identifier of the terminal device, the physical cell identifier of the target cell of the terminal device, and the source cell radio network temporary identifier C-RNTI.
  • the core network device can perform identity verification on the terminal device and avoid sending downlink data to the fraudulent terminal device.
  • a communication method including: an access network device sends a paging message to a terminal device; the access network device receives a paging response from the terminal device on the first physical uplink shared channel PUSCH resource; wherein, The first PUSCH resource is determined according to the pre-configuration and/or paging message.
  • the access network device can indicate the first PUSCH resource to the terminal device according to the pre-configuration and/or paging message.
  • the access network device sends the configuration information of the first PUSCH resource to the terminal device after sending the paging message to the terminal device, which can reduce signaling overhead.
  • the identity verification of the terminal device can be performed as soon as possible, and the downlink data transmission can be performed faster, and the downlink data transmission delay can be reduced.
  • the first PUSCH resource is pre-configured, and the access network device can be pre-configured in the following manner: the access network device sends first configuration information to the terminal device, and the first configuration information is used to configure the first PUSCH resources.
  • the first configuration information can be a broadcast message, and when the first PUSCH resource is configured through the broadcast message, the first PUSCH resource is shared by all terminal devices, and there is no need to separately configure the first PUSCH resource for different terminal devices to reduce the information. Order overhead.
  • the first PUSCH resource is determined according to the paging message, and the access network device can indicate the first PUSCH resource to the terminal device by carrying the first PUSCH resource configuration information in the paging message .
  • the access network device side can indicate the first PUSCH resource to the terminal device without additional signaling overhead, which reduces the signaling Overhead.
  • the first PUSCH resource is determined based on pre-configuration and paging messages, and the access network device can indicate the first PUSCH resource to the terminal device in the following manner: the access network device sends the first PUSCH resource to the terminal device Two configuration information, the second configuration information is used to configure at least one PUSCH resource.
  • each PUSCH resource in at least one PUSCH resource corresponds to an index
  • the paging message carries a first index
  • the first index corresponds to the first PUSCH resource
  • each PUSCH resource in at least one PUSCH resource corresponds to a terminal device identifier
  • the paging message carries the identifier of the paged terminal device
  • the identifier of the paged terminal device corresponds to the first PUSCH Resources.
  • each PUSCH in at least one PUSCH resource corresponds to a random access preamble identifier
  • the paging message carries the first random access preamble identifier
  • the first random access preamble identifier corresponds to For the first PUSCH resource.
  • the first PUSCH resource is determined based on pre-configuration and paging messages, and the access network device can indicate the first PUSCH resource to the terminal device in the following manner: the access network device sends the first PUSCH resource to the terminal device Three configuration information, where the third configuration information is used to configure the time-frequency domain resource part of the first PUSCH resource;
  • the paging message carries the remaining part of the time-frequency domain resource in the first PUSCH resource
  • the first PUSCH resource includes the part of the time-frequency domain resource in the first PUSCH resource and the remaining part of the time-frequency domain resource in the first PUSCH resource. section.
  • the first PUSCH resource is pre-configured, and the access network device sends fourth configuration information to the terminal device.
  • the fourth configuration information is used to configure the random access preamble and random access preamble. Frequency domain resources and the first PUSCH resource.
  • the first PUSCH resource is determined according to the paging message, the paging message carries fifth configuration information, and the fifth configuration information is used to configure the random access preamble and random access preamble.
  • the paging message carries fifth configuration information
  • the fifth configuration information is used to configure the random access preamble and random access preamble.
  • Time-frequency domain resources and the first PUSCH resource are determined according to the paging message, the paging message carries fifth configuration information, and the fifth configuration information is used to configure the random access preamble and random access preamble.
  • the first PUSCH resource is determined based on pre-configuration and paging messages, and the access network device strives to send the sixth configuration information to the terminal device.
  • the sixth configuration information is used to configure the random access preamble, The time-frequency domain resource of the random access preamble and the part of the time-frequency domain resource in the first PUSCH resource;
  • the paging message carries the remaining part of the time-frequency domain resource in the first PUSCH resource, and the first PUSCH resource includes the part of the time-frequency domain resource in the first PUSCH resource and the remaining part of the time-frequency domain resource in the first PUSCH resource.
  • the first PUSCH resource is determined according to pre-configuration and paging messages
  • the access network device sends seventh configuration information to the terminal device
  • the seventh configuration information is used to configure at least one random access configuration
  • Each random access configuration includes: random access preamble, random access preamble time-frequency domain resources, and PUSCH time-frequency domain resources.
  • each random access configuration in at least one random access configuration corresponds to an index
  • the paging message carries a first index
  • the first index corresponds to the first random access configuration
  • the first random access configuration The access configuration includes the first PUSCH resource.
  • each random access configuration in at least one random access configuration corresponds to a terminal device identification
  • the paging message carries the identification of the paged terminal device
  • the identification of the paged terminal device corresponds to The first random access configuration
  • the first random access configuration includes the first PUSCH resource.
  • each random access configuration in at least one random access configuration corresponds to a random access preamble identifier
  • the paging message carries the first random access preamble identifier
  • the first random access The incoming preamble identifier corresponds to the first random access configuration
  • the first random access configuration includes the first PUSCH resource.
  • the access network device uses the time-frequency domain resources of the random access preamble to receive the random access preamble from the terminal device.
  • the access network device sends a random access preamble response message to the terminal device, and the random access preamble response message includes downlink data.
  • the access network equipment can transmit the downlink data in the response message of the random access preamble, which can realize the early transmission of the downlink data and reduce the transmission delay.
  • the paging message includes the downlink data early transmission indicator or the random access preamble identifier
  • the access network device uses the first PUSCH resource to access the paging response from the terminal device, including:
  • the access network device receives the paging response from the terminal device on the first PUSCH resource according to the downlink data early transmission indication or the random access preamble identifier.
  • the paging response is a non-access stratum NAS message
  • the identity verification information of the terminal device is generated based on the NAS security key of the terminal device.
  • the core network device can perform identity verification on the terminal device, avoid sending downlink data to the fraudulent terminal device, and improve data security.
  • the paging response is a radio resource control RRC message
  • the identity verification information of the terminal device is generated according to one or more of the following parameters: the access layer key of the terminal device, the source cell of the terminal device The physical cell identifier of the terminal device, the physical cell identifier of the target cell of the terminal device, and the source cell radio network temporary identifier C-RNTI.
  • the access network device can perform identity verification on the terminal device, avoid sending downlink data to the fraudulent terminal device, and improve data security.
  • a method for accessing an unlicensed channel including: a terminal device receives a paging message from an access network device, and the paging message includes indication information; the terminal device performs an unlicensed channel access according to the indication information. Into.
  • the terminal device can perform the unlicensed access of the first channel access type and can also perform the unlicensed access of the second channel access type. Compared with the manner in which the terminal device can only perform the unlicensed access of the first channel access type, the flexibility of the unlicensed access of the terminal device can be improved. At the same time, since the time delay of the second channel access type is smaller than that of the first channel access type, the access speed of the terminal device can also be increased indirectly.
  • the indication information is used to indicate the access type of the unlicensed channel, and the terminal device performs access to the unlicensed channel according to the indication information, including: when the indication information is used to indicate the access type of the first channel , The terminal device executes the unlicensed channel access according to the first channel access type; or, when the indication information is used to indicate the second channel access type, the terminal device executes the unlicensed channel access according to the second channel access type Access.
  • the indication information is used to indicate the available duration of the unlicensed channel, and the terminal device performs access to the unlicensed channel according to the instruction information, including: when the available duration of the unlicensed channel is greater than or equal to the first When the duration is long, the terminal device performs unlicensed channel access according to the second channel access type; or, when the available time of the unlicensed channel is less than the first duration, the terminal device performs unlicensed channel access according to the first channel access type Access.
  • a method for accessing an unlicensed channel including: an access network device determines the available time of the unlicensed channel; the access network device determines the indication information according to the available time of the unlicensed channel; The device sends a paging message to the terminal device, and the paging message carries indication information.
  • the access network equipment can instruct the terminal equipment to perform different types of channel access according to the difference in the available time, thereby reducing the channel access time of the terminal equipment.
  • the access network device determines the indication information according to the available time of the unlicensed channel, including: when the available time of the unlicensed channel is greater than or equal to the second time, the access network device determines the indication information It is the second channel access type; or, when the available duration of the unlicensed channel is less than the second duration, the access network device determines that the indication information is the first channel access type.
  • the indication information is used to indicate the available time length of the unlicensed channel.
  • a communication method including: a terminal device uses a first physical uplink shared channel PUSCH resource to send uplink data to an access network device; the terminal device determines the first physical uplink shared channel PUSCH resource according to the corresponding relationship between the PUSCH resource and the synchronization signal block SSB. The first SSB corresponding to the PUSCH resource; the terminal device monitors the physical downlink control channel PDCCH on the first SSB.
  • the terminal device receives configuration information from the access network device, and the configuration information is used to configure the correspondence between the PUSCH resource and the SSB.
  • a communication method including: an access network device uses a first physical uplink shared channel PUSCH resource to receive uplink data from a terminal device; the access network device uses the corresponding relationship between the PUSCH resource and the synchronization signal block SSB, Determine the first SSB corresponding to the first PUSCH resource; the access network device sends the physical downlink control channel PDCCH on the first SSB.
  • the access network device sends configuration information to the terminal device, and the configuration information is used to configure the correspondence between the PUSCH resource and the SSB.
  • a communication method including: a terminal device determines a first synchronization signal block SSB; the terminal device uses a first physical uplink shared channel PUSCH resource to send uplink data and an identifier of the first SSB to an access network device;
  • the terminal equipment monitors the physical downlink control channel PDCCH on the first SSB.
  • the terminal device receives instruction information from the access network device, and the instruction information is used to indicate that the terminal device needs to report the SSB identifier.
  • a communication method including: the access network device uses the first physical uplink shared channel PUSCH to receive uplink data from the terminal device and the identification of the first synchronization signal block SSB; the access network device is in the first SSB Above, send the physical downlink control channel PDCCH to the terminal equipment.
  • the access network device sends instruction information to the terminal device, and the instruction information is used to indicate that the terminal device needs to report the identification of the SSB.
  • an embodiment of the present application provides a device that includes units or means for executing each step included in any one of the designs from the first aspect to the eighth aspect.
  • an embodiment of the present application provides a device including at least one processor and a memory, and the at least one processor is configured to execute the method provided in any one of the designs from the first aspect to the eighth aspect above.
  • an embodiment of the present application provides a device including at least one processor and an interface circuit, and the at least one processor is configured to execute the method provided in any one of the designs from the first aspect to the eighth aspect above.
  • an embodiment of the present application provides a program, which is used to execute the method provided in any one of the designs of the first aspect to the eighth aspect when the program is executed by a processor.
  • the embodiments of the present application provide a program product, such as a computer-readable storage medium.
  • a program product such as a computer-readable storage medium.
  • the computer reads and executes the program product, the computer executes any design of the first aspect to the eighth aspect. Method provided in.
  • the above device may be a chip, and the processor may be realized by hardware or software.
  • the processor may be a logic circuit, an integrated circuit, etc.; when realized by software, the processor may be It is a general-purpose processor, realized by reading the software code stored in the memory, the memory can be integrated in the processor, can be located outside the processor, and exist independently.
  • processors There are one or more processors and one or more memories.
  • the memory can be integrated with the processor, or the memory and the processor can be provided separately.
  • the memory and the processor may be integrated on the same chip, or may be separately arranged on different chips.
  • the embodiment of the present application does not limit the type of the memory and the way of setting the memory and the processor.
  • FIG. 1 is a schematic diagram of a communication system to which an embodiment of this application is applicable;
  • FIG. 2 is a schematic diagram of a network architecture to which an embodiment of the application is applicable;
  • FIG. 3 is another schematic diagram of a network architecture to which an embodiment of the application is applicable
  • FIG. 4 is a schematic diagram of downlink data transmission provided by an embodiment of this application.
  • FIG. 5 is a schematic diagram of early transmission of downlink data provided by an embodiment of this application.
  • FIG. 6 is another schematic diagram of early transmission of downlink data provided by an embodiment of this application.
  • FIG. 7 is another schematic diagram of early downlink data transmission provided by an embodiment of this application.
  • FIG. 8 is a schematic diagram of a communication method provided by an embodiment of this application.
  • FIG. 9 is a schematic diagram of using a control plane to carry early downlink data according to an embodiment of the application.
  • FIG. 10 is a schematic diagram of using a user plane to carry early downlink data transmission according to an embodiment of this application.
  • FIG. 11 is a schematic diagram of using a control plane to carry early downlink data according to an embodiment of this application.
  • FIG. 12 is a schematic diagram of using a user plane to carry early downlink data transmission according to an embodiment of the application.
  • FIG. 13 is a schematic diagram of using a user plane to carry early downlink data transmission according to an embodiment of the application.
  • FIG. 14 is a schematic diagram of a MAC subPDU provided by an embodiment of the application.
  • FIG. 15 is another schematic diagram of a MAC sub-PDU provided by an embodiment of the application.
  • 16a, 16b, and 16c are schematic diagrams of MAC sub-header formats provided by an embodiment of this application.
  • FIG. 17 is a schematic diagram of an unlicensed channel access method provided by an embodiment of this application.
  • FIG. 18 is another schematic diagram of an unlicensed channel access method provided by an embodiment of this application.
  • FIG. 19 is a schematic diagram of a communication method provided by an embodiment of this application.
  • FIG. 20 is a schematic diagram of a communication method provided by an embodiment of this application.
  • FIG. 21 is a schematic diagram of a communication method provided by an embodiment of this application.
  • FIG. 22 is a schematic diagram of a communication method provided by an embodiment of this application.
  • FIG. 23 is a schematic diagram of using a user plane to carry early downlink data according to an embodiment of the application.
  • FIG. 24 is a schematic structural diagram of a device provided by an embodiment of the application.
  • FIG. 25 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • FIG. 26 is a schematic diagram of another structure of a network device provided by an embodiment of this application.
  • FIG. 27 is a schematic structural diagram of a terminal device provided by an embodiment of this application.
  • FIG. 1 shows one of the communication systems 100 to which the embodiment of the present application is applicable, including a radio access network (RAN) device 110, a core network (CN) device 120, and a terminal device 130.
  • RAN radio access network
  • CN core network
  • the terminal device 130 can access a wireless network, and the wireless network includes the RAN device 110 and the CN device 120.
  • the RAN device 110 is used to connect the terminal device 130 to the wireless network
  • the CN device 120 is used to manage the terminal device 130 and provide a gateway for communication with the external network.
  • the terminal device 130 also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device that provides voice/data connectivity to users.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • some examples of terminals are: mobile phones, tablet computers, notebook computers, handheld computers, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, and augmented reality.
  • augmented reality, AR equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart grids
  • a network device is a device in a wireless network, for example, a radio access network (RAN) node that connects a terminal device to the wireless network.
  • RAN nodes are: gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B) B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit) , BBU), or wireless fidelity (Wifi) access point (AP), etc.
  • the network device may include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node.
  • the RAN device 110 and the terminal device 130 may perform data transmission through air interface resources, and the air interface resources may include at least one of time domain resources, frequency domain resources, or code domain resources.
  • the RAN device 110 may send control information to the terminal device 130 through a control channel, such as a physical downlink control channel (PDCCH), so as to allocate the terminal device Data channels, such as physical downlink shared channel (PDSCH) or physical uplink shared channel (physical uplink shared channel, PUSCH) resources.
  • a control channel such as a physical downlink control channel (PDCCH)
  • PDSCH physical downlink shared channel
  • PUSCH physical uplink shared channel
  • the control information may indicate the symbol and/or subcarrier to which the data channel is mapped.
  • the RAN device 110 and the terminal device 130 perform data transmission through the data channel on the allocated time-frequency resources.
  • the above-mentioned data transmission may include uplink data transmission and/or downlink data transmission.
  • the aforementioned downlink data transmission (such as data carried by the PDSCH) may refer to the RAN device 110 sending data to the terminal device 130
  • uplink data (such as the data carried by the PUSCH) may refer to the terminal device 130 sending data to the RAN device 110.
  • the data can be data in a broad sense, for example, it can be user data, system information, broadcast information, or other information, etc., without limitation.
  • FIG. 1 exemplarily shows two RAN devices 110, one terminal device 130, and one core network device 120.
  • the communication system 100 may include other numbers of RAN devices except two, and may include other numbers of terminal devices except one in the coverage of each RAN, which is not discussed in this embodiment of the application. limited.
  • Fig. 2 shows a network equipment architecture to which the embodiments of the present application are applicable, including: CN equipment and RAN equipment.
  • the RAN equipment includes a baseband device and a radio frequency device.
  • the baseband device can be implemented by one node or multiple nodes.
  • the radio frequency device can be remotely and independently implemented from the baseband device, can also be integrated into the baseband device, or partly remotely and partly integrated into the baseband device.
  • the RAN includes a baseband device and a radio frequency device.
  • the radio frequency device can be arranged remotely from the baseband device.
  • a remote radio unit (RRU) is arranged remotely with respect to the BBU.
  • the control plane protocol layer structure can include radio resource control (RRC) layer and packet data convergence protocol (PDCP)
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the user plane protocol layer structure can include the PDCP layer, the RLC layer, and the MAC layer.
  • the functions of the protocol layer such as the layer and the physical layer; in a possible implementation, the PDCP layer may also include a service data adaptation protocol (SDAP) layer.
  • SDAP service data adaptation protocol
  • the RAN equipment can be implemented by one node to implement the functions of the RRC, SDAP, PDCP, RLC, and MAC protocol layers, or multiple nodes can implement the functions of these protocol layers.
  • RAN equipment may include CUs and DUs, and multiple DUs may be centrally controlled by one CU.
  • the interface between CU and DU may be referred to as an F1-U interface.
  • CU and DU can be divided according to the protocol layer of the wireless network. For example, the functions of the PDCP layer and above protocol layers are set in the CU, and the protocol layers below the PDCP, such as the RLC layer and MAC layer, are set in the DU.
  • This type of protocol layer division is just an example, it can also be divided in other protocol layers, for example, in the RLC layer, the functions of the RLC layer and above protocol layers are set in the CU, and the functions of the protocol layers below the RLC layer are set in the DU; Or, in a certain protocol layer, for example, part of the functions of the RLC layer and the functions of the protocol layer above the RLC layer are set in the CU, and the remaining functions of the RLC layer and the functions of the protocol layer below the RLC layer are set in the DU. In addition, it can also be divided in other ways, for example, by time delay. The functions that need to meet the delay requirement for processing time are set in the DU, and the functions that do not need to meet the delay requirement are set in the CU.
  • the radio frequency device can be remote, not placed in the DU, can also be integrated in the DU, or part of the remote part is integrated in the DU, and there is no restriction here.
  • FIG 3 shows another network architecture to which the embodiments of the present application are applicable.
  • the control panel (CP) and the user panel (UP) of the CU can also be separated and divided into different entities for implementation, which are respectively the control plane CU entity (CU-CP entity).
  • the signaling generated by the CU can be sent to the terminal device through the DU, or the signaling generated by the terminal device can be sent to the CU through the DU.
  • the DU may directly pass the protocol layer encapsulation without analyzing the signaling and transparently transmit it to the terminal device or the CU.
  • the sending or receiving of the signaling by the DU includes this scenario.
  • RRC or PDCP layer signaling will eventually be processed as PHY layer signaling and sent to the terminal, or converted from received PHY layer signaling.
  • the RRC or PDCP layer signaling can also be considered to be sent by the DU, or sent by the DU and radio frequency.
  • the CU divides the network equipment on the RAN side.
  • the CU may also be divided into the network equipment on the CN side, which is not limited here.
  • the device in the following embodiments of the present application may be located in a terminal device or a network device according to the function it implements.
  • the network device may be a CU node, or a DU node, or include a CU node or DU The RAN equipment of the node.
  • an embodiment of the present application provides a scenario as follows. It should be noted that in the following embodiments, the use of the access network equipment and the network equipment is not particularly distinguished. If there is no additional description, the network equipment in the following embodiments is specifically an access network equipment.
  • RRC radio resource control
  • the inactive state is the same as the idle state.
  • the terminal device disconnects the RRC connection and does not need to receive downlink data, thereby achieving the same power saving effect as the idle state.
  • the difference from the idle state is that in the inactive state, the dedicated channel for the terminal device between the access network device and the core network device (for example, AMF and UPF, etc.) is maintained; the terminal device and the access network device are reserved terminals Device context: After the terminal device receives the paging of the access network device, the terminal device initiates the RRC connection recovery process, and enters the connected state based on the saved terminal device context.
  • RRC connected state and terminal equipment can perform data transmission with network equipment.
  • data can be transmitted with the network equipment only after the RRC connection is established or the RRC connection is restored.
  • a flow of a method for downlink data transmission is provided.
  • the principle of the method is: for terminal equipment in the RRC idle state or in the inactive state, the RRC connection is first established or restored, and the RRC connection is established or restored. After that, data transmission will be carried out with the network device.
  • the specific process is:
  • S500 The core network device sends downlink data to the access network device.
  • the access network device sends a paging message to the terminal device, where the paging message includes the identification of the terminal device.
  • the paged terminal device After the paged terminal device finds that the paging message carries its own terminal device identifier, it sends a random access preamble to the access network device. Specifically, the terminal device can obtain and randomly select a random access preamble from the broadcast message.
  • the access network device sends a random access response to the terminal device, where the random access response carries a PUSCH resource, and the PUSCH resource is specifically a PUSCH resource for the terminal device to send a paging response.
  • the terminal device sends a paging response to the access network device, where the paging response includes the identification of the terminal device.
  • the access network device After receiving the paging response, the access network device learns the identity of the terminal device, and then executes S505 to notify the terminal device to resume the RRC connection.
  • S505 The access network device sends an RRC connection recovery message to the terminal device.
  • S505 and S506 are for the paged terminal device in an inactive state. If the paged terminal device is in an idle state, the above S505 may be replaced by: the access network device sends an RRC connection establishment request message to the terminal device. The foregoing S506 may be replaced by: the terminal device sends an RRC connection establishment complete message to the access network device.
  • the access network device After receiving the RRC connection recovery complete message, the access network device sends downlink data to the terminal device.
  • the access network device may further send an RRC connection release message to the terminal device to notify the terminal device to remain in the inactive state.
  • the RRC connection can be established or restored after the above-mentioned process of S500 to S506, and then the downlink data can be transmitted in S507.
  • using the above method will make most of the resources used to establish or restore the RRC connection, and the data transmission efficiency is low.
  • the early transmission of downlink data refers to the access network before the RRC connection is established or restored, or before the terminal device receives the RRC connection establishment response or the RRC connection recovery response.
  • the device sends downlink data to the terminal device.
  • Early transmission of downlink data can improve data transmission efficiency.
  • solution 1 is to use non-access stratum (NAS) messages in the signaling bearer of the control plane to carry downlink data packets.
  • solution 2 is to use the data bearer of the user plane to send downlink data.
  • NAS non-access stratum
  • the access network equipment is used as a base station, and the core network equipment includes a mobility management entity (MME) or a mobility management function (access and mobility management function, AMF) as an example for description.
  • MME mobility management entity
  • AMF access and mobility management function
  • the AMF/MME receives the downlink data of the terminal equipment in the idle state.
  • the downlink data may include a downlink data early transmission indication.
  • S602 The AMF/MME buffers downlink data.
  • the AMF/MME sends a paging message to the base station, where the paging message includes a downlink data early transmission indication and a temporary mobile subscriber identity (Serving-Temporary Mobile Subscriber Identity, S-TMSI) of the paged terminal device.
  • S-TMSI Server-Temporary Mobile Subscriber Identity
  • the base station After receiving the paging message, the base station allocates a dedicated random access preamble Preamble to the terminal device, and records the correspondence between the Preamble ID and the S-TMSI.
  • the base station sends a paging message to the terminal device, where the paging message includes the downlink data early transmission indication, the S-TMSI of the paged terminal device, and the dedicated Preamble ID.
  • the paged terminal device After receiving the paging message, the paged terminal device obtains the dedicated Preamble from the paging message, and sends the dedicated Preamble to the base station.
  • the base station After receiving the dedicated Preamble, the base station searches for the S-TMSI corresponding to the dedicated Preamble from the established correspondence, and sends the S-TMSI to the AMF/MME.
  • the AMF/MME puts the downlink data in the NAS message, and sends the NAS message to the base station.
  • the base station After receiving the NAS message, the base station sends the NAS message to the terminal device.
  • the terminal device If the terminal device correctly receives the downlink data, it generates and sends a NAS message to the base station, where the NAS message carries the S-MTSI.
  • the base station sends a NAS message to the AMF/MME.
  • the AMF/MME performs identity verification on the NAS message, and if the verification is passed, it is considered that the above-mentioned downlink data is sent to the paged terminal device.
  • the paging message is transmitted in plain text, and the dedicated Preamble is also in plain text, which can also be received by other non-paging terminal devices. If other terminal devices use the paged terminal device to send the dedicated preamble, the base station considers that the preamble is sent by the paged terminal device, and sends the S-TMSI corresponding to this preamble to the MME/AMF.
  • the MME/AMF regards the received S-TMSI as a response to paging the terminal device, that is, without verifying the identity of the terminal device, that is, sending the downlink data to the terminal device in the above S608 may cause the downlink data to be sent Sent to the wrong terminal device.
  • a process of a method for early transmission of downlink data is provided.
  • the method may correspond to the above scheme 2.
  • the access network equipment is used as the base station, and the core network equipment includes a mobility management entity.
  • MME serving gateway
  • S-GW serving gateway
  • PDN gateway PDN gateway
  • the description is made by taking the early transmission of downlink data of idle state terminal equipment as an example.
  • the process includes:
  • the P-GW receives downlink data from a terminal device in an idle state.
  • the P-GW sends the downlink data of the idle state terminal device to the S-GW through the dedicated link for the terminal device.
  • the S-GW sends the downlink data notification of the idle state terminal device to the MME through the dedicated link of the terminal device.
  • the downlink data notification includes the downlink data early transmission indication and the downlink data.
  • S702b The MME sends a downlink data notification confirmation response to the S-GW.
  • the MME sends a paging message to the base station, where the paging message carries the S-TMSI and the downlink data early transmission indication.
  • the base station determines a dedicated preamble, and sends a paging message to the terminal device.
  • the paging message carries the ID of the S-TMSI and the above-mentioned dedicated preamble, and records the corresponding relationship between the preamble and the S-TMSI.
  • the terminal device receives a paging message from the base station.
  • S706 The terminal device matching the S-TMSI sends a dedicated preamble to the base station.
  • the base station After receiving the preamble, the base station finds the S-TMSI corresponding to this preamble from the record, and sends the context recovery request of the terminal device to the MME.
  • the context recovery request may indicate that the suspended RRC connection of the terminal device has been recovered or that the terminal device wants to access for early data transmission.
  • the MME sends a bearer modification request to the S-GW, and the bearer modification request includes the tunnel address information of the base station;
  • the S-GW sends a bearer modification response to the MEE, and the bearer modification response includes the address information of the SGW .
  • S709 The MME sends a context recovery response to the base station.
  • the S-GW can send downlink data to the base station through the dedicated channel established above.
  • the base station sends a random access response message to the terminal device, where the random access response carries downlink data.
  • the dedicated preamble ID in the paging message is in plain text, unless the terminal device is paged, other terminal devices can also receive it. If other terminal equipment fraudulently uses the paged terminal equipment to send the dedicated preamble, the base station considers it as the preamble sent by the paged terminal equipment and informs the MME to restore the dedicated channel between the base station and the SGW. In the absence of security verification of the terminal equipment's identity information S-TMSI, the dedicated channel is restored for downlink data transmission. Therefore, data may be sent to the wrong terminal device.
  • the base station does not verify the identity of the terminal device, that is, the downlink data is transmitted to the terminal device, and the paging terminal device may be fraudulently used, thereby transferring the downlink data. Data transmission to the wrong terminal device.
  • the embodiment of the present application also provides a method for early transmission of downlink data.
  • the principle of the method is: after the terminal device is authenticated, the downlink data is sent to the terminal device, so as to solve the problem that the paged terminal device is blocked. Fraudulent use, the problem of transmitting downlink data to the wrong terminal device.
  • the access network device is used as a base station as an example for description.
  • the description is made by taking the example of early transmission of downlink data to the inactive terminal device.
  • the process includes:
  • the base station receives the downlink data of the inactive terminal device.
  • the base station sends a paging message to the terminal device, and the paging message carries the downlink data early transmission indication and the identifier of the terminal device.
  • the identifier of the terminal device may specifically be an inactive radio network temporary identity (I-RNTI).
  • the paged terminal device finds that the paging message carries its own terminal identifier.
  • the terminal device obtains and selects a random access preamble from the broadcast message, and sends a preamble request.
  • the random access response may include PUSCH resources, and may also include a timing adjustment TA command.
  • the terminal device sends a paging response, and the paging response contains the identity verification information and I-RNTI of the terminal device.
  • the paging response may be an RRC message and is sent through the PUSCH resource carried in the random access response.
  • S805 The base station performs identity verification on the terminal device, and after the identity of the terminal device is successfully verified, the following S806 is executed.
  • the base station sends downlink data to the terminal device.
  • the base station may also send an RRC connection release message to the terminal device to notify the terminal device to remain in the INACTIVE state.
  • the downlink data transmission is carried out after the terminal device’s identity verification is realized, which solves the problem of data transmission security.
  • the terminal device sends a 4-step random access after receiving the paging message After the process (specifically the above S802, S803, S804 and S806), the downlink data transmission can be carried out.
  • the delay of the downlink data is relatively large, and the efficiency needs to be further improved.
  • the embodiments of the present application provide a communication method and device.
  • the principle of the method is to pre-configure a PUSCH resource for sending a paging response to a terminal device, and/or configure it to send a paging through a paging message The corresponding PUSCH resource.
  • the access network device can send a paging response to the terminal device earlier, and perform identity verification earlier, so as to perform downlink data transmission as soon as possible, reduce the delay of downlink data, and solve the security problem of data transmission.
  • the access network device in the flow may be the RAN device 110 in FIG. 1 described above.
  • the access network device may adopt the network architecture shown in FIG. 2 or FIG. 3 above.
  • the terminal device may be the terminal device 130 in FIG. 1 described above.
  • the process includes:
  • the access network device sends a paging message to the terminal device.
  • the terminal device receives the paging message from the access network device.
  • the paging message includes at least one of the identification of the paged terminal device, the random access preamble, or the downlink data early transmission indication.
  • the paged UE determines the first PUSCH resource from the pre-configured PUSCH resource.
  • the paged UE determines the first PUSCH resource corresponding to the random access preamble identifier according to the random access preamble identifier.
  • the paged UE When the paging message carries the identification of the paging terminal device and the downlink data early transmission indicator, the paged UE preferably determines the first PUSCH resource from the pre-configured PUSCH resource. S902.
  • the terminal device uses the first PUSCH resource to send a paging response to the access network device.
  • the access network device uses the first PUSCH resource to receive a paging response from the access network device, the paging response carries the identification and identity verification information of the terminal device, and the identification and identity verification of the terminal device The information is used for identity verification of the terminal device.
  • the foregoing S902 can also be described as: the terminal device uses the downlink data early transmission indication or the random access preamble to send a paging response to the access network device on the first PUSCH resource.
  • the random access preamble may be a dedicated random access preamble, and the dedicated random access preamble may indicate early transmission of downlink data.
  • the access network device may verify the identity of the terminal device. And after the identity verification of the terminal device is successful, the downlink data is sent to the terminal device.
  • the verification process may include: the access network device may obtain parameters for identity verification according to the identification of the terminal device, and generate identity verification information based on the foregoing parameters. And the access network device compares the identity verification information generated by itself with the identity verification information carried in the above S902, if the two match, the identity verification of the terminal device is considered successful, otherwise the identity verification of the terminal device is considered unsuccessful .
  • the access network device may send the paging response to the core network device, and the core network device will authenticate the terminal device.
  • the core network device identity verification process is related to the access network device. The identity verification process of the networked device is similar, so I won’t repeat it here.
  • the first PUSCH resource used to send the paging response in S902 may be pre-configured, or may be determined according to the paging message in S901, or may be pre-configured and determined according to the paging message in S901.
  • the paging message in S901 above is determined.
  • the network device can configure the first PUSCH resource for the terminal device alone, or it can be described as the terminal device separately determining the first PUSCH resource.
  • the network equipment in addition to configuring the first PUSCH resource, can also configure the random access preamble and the time-frequency domain resources of the random access preamble for the terminal equipment. That is, the network equipment also configures the random access for the terminal equipment. Enter the preamble, the time-frequency domain resources of the random access preamble, and the first PUSCH resource.
  • the second scheme can also be referred to as a 2-step random access (random access channel, RACH) configuration. Or, it can be described as the terminal device simultaneously determining the random access preamble, the time-frequency domain resources of the random access preamble, and the first PUSCH, etc.
  • the realization of the first scheme includes but is not limited to the following ways:
  • the access network device may send first configuration information to the terminal device, where the first configuration information is used to configure the first PUSCH resource.
  • the terminal device receives the first configuration information from the access network device, and determines the first PUSCH resource according to the first configuration information.
  • the configuration information of the first PUSCH resource may include at least one of a time domain resource, a frequency domain resource, and a demodulation reference signal (DMRS) of the PUSCH.
  • DMRS demodulation reference signal
  • the configuration information of the first PUSCH resource includes time domain resources and frequency domain resources of the PUSCH, and the DMRS is agreed upon by a protocol or preset by the UE.
  • the configuration information of the first PUSCH resource includes the frequency domain resource of the PUSCH, and the DMRS and the time domain resource are agreed upon by the protocol or preset by the UE.
  • the configuration information of the first PUSCH resource includes the time domain resources of the PUSCH, and the DMRS and frequency domain resources are agreed upon by the protocol or preset by the UE.
  • the above-mentioned first configuration information may be broadcast messages, dedicated messages (for example, RRC reconfiguration messages, or RRC release messages, etc.), or physical layer signaling (for example, PDCCH commands, PDCCH scheduling signaling, etc.).
  • the first configuration information is a broadcast message
  • the first PUSCH resource is pre-configured for the terminal device in the manner of the broadcast message. Multiple terminal devices share the first PUSCH resource, and there may be conflicts between different terminal devices. However, this method is simple and easy to implement, and the terminal device does not need to redistribute the first PUSCH resource after changing the cell.
  • the paging message in S901 may carry configuration information of the first PUSCH resource.
  • the terminal device can determine the first PUSCH resource according to the paging message in S901. In this way, the UE can directly obtain the first PUSC swap resource through the paging message, avoiding the process of the UE requesting the network to allocate PUSCH resources and saving time delay.
  • the access network device may send second configuration information to the terminal device, where the second configuration information is used to configure at least one PUSCH resource.
  • the terminal device can receive the second configuration information from the access network device, and the terminal device can determine at least one PUSCH resource according to the second configuration information. Further, the terminal device can determine at least one PUSCH resource according to the paging message.
  • the second configuration information may be a broadcast message, a dedicated message, or physical layer signaling, etc., which is not limited.
  • each PUSCH resource corresponds to an index.
  • the paging message in S901 may carry the index of the first PUSCH resource, and the terminal device may determine the first PUSCH resource according to the index of the PUSCH resource carried in the paging message. For example, if the index corresponding to the first PUSCH resource is the first index, the first index may be carried in S901, and the terminal device may determine the first index among at least one PUSCH resource configured in the second configuration information according to the first index.
  • a PUSCH resource may be carried in S901 if the index corresponding to the first PUSCH resource is the first index, the first index may be carried in S901, and the terminal device may determine the first index among at least one PUSCH resource configured in the second configuration information according to the first index.
  • index PUSCH resource list configured by the second configuration information Index 1 First PUSCH resource Index 2 Second PUSCH resource Index 3 Third PUSCH resource
  • each PUSCH resource corresponds to an identifier of a terminal device.
  • the paging message in the above S901 carries the identification of the paged terminal device, and the terminal device can determine the first PUSCH resource according to the identification of the paged terminal device.
  • the identity of the paged terminal device is called the identity of the first terminal device, and there is a corresponding relationship between the identity of the first terminal device and the first PUSCH resource, then the terminal device according to the identity of the first terminal device carried in the paging message,
  • the first PUSCH resource can be determined. Since the paging message originally needs to carry the terminal device identifier, in this way, the paging message has no additional overhead.
  • Terminal equipment identification PUSCH resource list configured by the second configuration information First terminal device identification First PUSCH resource Second terminal device identification Second PUSCH resource Third terminal equipment identification Third PUSCH resource
  • each PUSCH resource corresponds to a random access preamble identifier.
  • the paging message in the above S901 carries a random access preamble identifier.
  • the terminal device can determine the first PUSCH resource according to the random access preamble identifier carried in the paging message.
  • the paging message in the above S901 carries the first random access preamble in the following Table 3, then the terminal equipment determines according to the correspondence between the random access preamble and the PUSCH resource shown in the following Table 3 The first PUSCH resource.
  • the first PUSCH resource is used to perform the above-mentioned step S902. Since the paging message originally needs to carry the random access preamble identifier, in this way, there is no additional overhead in the paging message.
  • the paging message in S901 may carry multiple identities of the paged terminal devices.
  • Each terminal device can determine its corresponding PUSCH resource according to its own sequence in the paging message.
  • three PUSCH resources are configured through the above second configuration information, namely PUSCH resource 1, PUSCH resource 2, and PUSCH resource 3.
  • the paging message carries the identities of the three terminal devices, that is, the current paging message is used to page three terminal devices, and the paging message is used to carry the identification positions of the three terminal devices. In the order of time domain, they are respectively position 1. , Position 2 and position 3.
  • the identity of the current terminal device occupies position 1 in the paging message in S901, it can be determined that the first PUSCH resource used by the current terminal device to send a paging response in S902 is PUSCH resource 1, and when the current terminal device When the identifier of occupies position 2 in the paging message in S901, it can be determined that the first PUSCH resource used by the current terminal device to send a paging response in S902 is PUSCH resource 2. Similarly, when the identifier of the current terminal device occupies position 3 in the paging message in S901, it can be determined that the first PUSCH resource used by the current terminal device to send a paging response in S902 is PUSCH resource 3. Since the identification of the paged terminal device is originally carried in the paging message, there is no additional overhead for the paging message.
  • PUSCH resource list configured by the second configuration information PUSCH resource 1 PUSCH resource 2 PUSCH resource 3
  • the terminal device may determine the PUSCH resource used to send each paging response according to the sequence of receiving paging messages. Still using the example of Table 3 above, through the second configuration information, the network device configures three PUSCH resources for the terminal device, namely PUSCH resource 1, PUSCH resource 2, and PUSCH resource 3.
  • the terminal device receives the paging message for the first time, it can use PUSCH resource 1 to send the paging response in S902, that is, the PUSCH resource 1 is the first PUSCH resource in S902.
  • the PUSCH resource 2 can be used to send the paging response in S902, that is, the PUSCH resource 2 is the first PUSCH resource in S902.
  • the terminal device when the terminal device receives the paging message for the third time, it can use PUSCH resource 3 to send the paging response in S902, that is, the PUSCH resource 3 is the first PUSCH resource in S902.
  • the configured PUSCH resources When the configured PUSCH resources are used in sequence, they will be used in sequence again. For example, when the terminal device receives a paging message for the fifth time, it will use PUSCH resource 1 to send the paging response in S902 above, and so on . In this manner, there is no indication information of any PUSCH resource in the paging message, and there is no additional overhead for the paging message.
  • the access network device may send third configuration information to the terminal device, where the third configuration information is used to configure the time-frequency domain resource portion of the first PUSCH resource.
  • the terminal device can receive the third configuration information from the access network device, and the terminal device determines the part of the time-frequency resource of the first PUSCH resource according to the third configuration information.
  • the paging message in S901 carries the remaining part of the time-frequency domain resource in the first PUSCH resource, and the terminal device can determine the remaining part of the time-frequency domain resource in the first PUSCH resource according to the paging message in the foregoing S901.
  • the third configuration information indicates time domain resource information.
  • the time domain resource information can be the period and the starting position.
  • the paging message carries frequency domain resource information.
  • the third configuration information indicates frequency domain resource information, and the paging message carries time domain resource information.
  • the terminal device can also use the time-frequency domain resources of the random access preamble to send the random access preamble to the access network device. Alternatively, the terminal device first judges whether the timing advance (TA) is valid, and if it is valid, the random access preamble is no longer sent to the access network device. If the TA fails, the random access preamble is sent again.
  • TA timing advance
  • the terminal device determines the random access preamble according to the random access preamble identifier in the paging message. This random access preamble identifier is allocated to the terminal device.
  • the NAS message in the signaling bearer in the control plane can be used to transmit the paging response in S902.
  • the identity verification information carried in the paging response is generated according to the NAS security key of the terminal device.
  • a flow of a communication method is provided, and the flow is specifically an example of using the NAS message to transmit a paging response in the above scheme 1.
  • the procedure is described by taking the early downlink data transmission to the idle state terminal device as an example.
  • the terminal equipment in this process can correspond to the terminal equipment in Figure 8 above
  • the base station can correspond to the access network equipment in Figure 8 above
  • the AMF is the network element in the core network equipment
  • the PUSCH resource can correspond to the terminal equipment in Figure 8 above.
  • the process includes:
  • the base station allocates PUSCH resources to the terminal equipment.
  • the base station can allocate PUSCH resources to the terminal device through dedicated RRC signaling or PDCCH signaling.
  • the RRC signaling can be an RRC reconfiguration message or an RRC connection release message.
  • the PUSCH resource can be dedicated to the terminal device. PUSCH resources.
  • the PUSCH resource may be a PUSCH resource shared by multiple terminal devices, and the shared PUSCH resource means that this PUSCH resource can be shared by multiple terminal devices.
  • the base station may configure the PUSCH resource for the terminal device through the broadcast message, and the terminal device may obtain the PUSCH resource from the broadcast message.
  • the AMF receives downlink data.
  • the AMF sends a paging message to the base station.
  • the paging message carries the downlink data early transmission indication and the identification of the paged terminal device.
  • the identification of the terminal device may be S-TMSI or NG-5G- TMSI etc.
  • S1003 The base station sends a paging message to the terminal device, where the paging message carries the preamble information and the identification of the paged terminal device.
  • the identification of the terminal device included in the paging message in S1003 may be S-TMSI, or NG-5G-TMSI, and so on.
  • the terminal device sends a preamble to the base station.
  • the terminal device sends a preamble to the base station. If the TA is valid, the terminal device may not send the preamble to the base station.
  • the terminal device uses the PUSCH resource to send a NAS message to the base station, where the NAS message carries a paging response, and the paging response carries the identity of the terminal device and the identity verification information of the terminal device.
  • the base station sends a NAS message to the AMF, and the NAS message carries a paging response, that is, carries the identification of the terminal device and the identity verification information of the terminal device.
  • S1007 The AMF verifies the identity of the terminal device according to the identity verification information carried in the paging response. And after the identity verification of the terminal device is successful, S1008 is executed.
  • the AMF can obtain the NAS security key of the terminal device according to the identification of the terminal device, and perform integrity and security verification on the NAS message according to the NAS security key.
  • the AMF sends a NAS message to the base station, where the NAS message carries downlink data.
  • the base station sends a NAS message to the terminal device, where the NAS message carries downlink data.
  • the network device pre-configures PUSCH resources for the terminal device.
  • the terminal device is allocated with PUSCH resources for transmitting paging responses. It can simplify the random access process of terminal equipment and reduce the transmission delay of downlink data.
  • the access layer RRC signaling may be used to transmit the paging response in S902.
  • the identity verification information carried in the paging response is generated according to one or more of the following parameters:
  • the access layer key of the terminal device the physical cell identity of the source cell of the terminal device, the physical cell identity of the target cell of the terminal device, and the source cell radio network temporary identifier (C-RNTI) .
  • the physical cell of the source cell refers to the cell when the terminal device enters the inactive or idle state
  • the target cell refers to the cell when the terminal device sends an RRC connection recovery request or an RRC connection establishment request
  • the source C-RNTI refers to the cell when the terminal device enters The identifier assigned to the cell in the de-active or idle state.
  • the physical cell identity of the source cell of the terminal device For example, using the access layer key of the terminal device, the physical cell identity of the source cell of the terminal device, the physical cell identity of the target cell of the terminal device, and the source cell radio network temporary identifier (cell radio network temporary identifier, C) -RNTI) generated identity verification information.
  • the source cell radio network temporary identifier (cell radio network temporary identifier, C) -RNTI) generated identity verification information.
  • a flow of a communication method is provided, and the flow is specifically an example of using the access layer RRC signaling to carry a paging response in the foregoing solution 1.
  • the process is described by taking the early downlink data transmission to the inactive terminal device as an example.
  • the terminal equipment in this process may be the terminal equipment in FIG. 8, the base station may correspond to the access network equipment in FIG. 8, and the PUSCH resource may correspond to the first PUSCH resource in FIG. 8.
  • the process includes:
  • S1100 The base station allocates PUSCH resources to the terminal device. For details, please refer to the record in S1000 in FIG. 10, which will not be described here.
  • the base station receives downlink data and sends a paging message to the terminal device.
  • the paging message includes the Preamble identifier and the terminal device identifier.
  • the terminal device identifier may include an identifier assigned by the base station to the terminal device, for example, Resume ID or I-RNTI, etc.
  • the terminal device obtains the Preamble from the paging message, and sends the Preamble to the base station. For example, the terminal device can send the Preamble through the PDCCH command. Optionally, if the TA is invalid, the terminal device can send a Preamble to the base station. If the TA is valid, the terminal device may not send the Preamble to the base station.
  • the terminal device uses the PUSCH resource to send an RRC message to the base station.
  • the RRC message (also known as RRC signaling) may be an RRC connection recovery request message or an RRC connection establishment request, etc.
  • the RRC message includes a paging response, The paging response may include the identification of the terminal device and the identity verification information of the terminal device.
  • S1104 The base station performs identity verification on the terminal device, and after the identity verification is passed, S1105 is executed.
  • the base station sends an RRC message to the terminal device.
  • the RRC message may be a connection recovery response, etc., and the RRC message carries downlink data.
  • the paging response can be sent to the base station through the pre-configured PUSCH resource.
  • the terminal device is allocated PUSCH resources for transmitting the paging response, which can simplify the random access process of the terminal device and reduce the transmission delay of downlink data.
  • the terminal equipment is configured with random access preamble, random access preamble time-frequency domain resources and PUSCH resources, which can be called It is the process of configuring 2-step RACH resources.
  • the access network device may send fourth configuration information to the terminal device, where the fourth configuration information is used to configure the random access preamble, the time-frequency domain resources of the random access preamble, and the second A PUSCH resource; correspondingly, the terminal device receives the fourth configuration information from the access network device, and the terminal device determines the first PUSCH resource according to the fourth configuration information. After that, the first PUSCH resource is used to send a paging message in S902.
  • the terminal device can also use the time-frequency domain resources of the random access preamble to send the random access preamble to the access network device.
  • the access network device uses the time-frequency domain resources of the random access preamble to receive the random access preamble from the terminal device.
  • the fourth configuration information can be a broadcast message, a dedicated message, or physical layer signaling.
  • the paging message in S901 may carry fifth configuration information, and the fifth configuration information is used to configure the random access preamble and the time-frequency domain of the random access preamble.
  • Resources and the first PUSCH resource The terminal device can determine the first PUSCH resource according to the fifth configuration information.
  • the terminal device may also determine the random access preamble and the time-frequency domain resources of the random access preamble according to the fifth configuration information, and use the time-frequency domain resources of the random access preamble to send the random access preamble to the access network device. Access the preamble.
  • the access network device may send sixth configuration information to the terminal device, where the sixth configuration information is used to configure the random access preamble, the time-frequency domain resources of the random access preamble, and The part of the time-frequency domain resources in the first PUSCH resource.
  • the paging message in the foregoing S901 carries the remaining part of the time-frequency domain resources in the first PUSCH resource, and the terminal device may determine the remaining part of the time-frequency domain resources in the first PUSCH resource according to the paging message.
  • the part of the time-frequency domain resources in the first PUSCH resource and the remaining part of the time-frequency domain resources in the first PUSCH resource may form a complete first PUSCH resource.
  • the terminal device may perform the steps in S902, and send a paging response to the access network device on the first PUSCH resource.
  • the terminal device can also use the time-frequency domain resources of the random access preamble to send the random access preamble to the access network device.
  • the access network device uses the time-frequency domain resources of the random access preamble to receive the random access preamble from the terminal device.
  • the access network device may send seventh configuration information to the terminal device, where the seventh configuration information is used to configure at least one random access configuration, and each random access configuration includes: random access Incoming preamble, random access preamble time-frequency domain resources, and PUSCH time-frequency domain resources.
  • the terminal device determines a first random access configuration from at least one random access configuration according to the paging message, where the first random access configuration includes the first PUSCH resource.
  • the terminal device may determine the first PUSCH resource according to the first random access configuration.
  • each random access configuration in the at least one random access configuration corresponds to an index
  • the paging message includes a first index
  • the terminal device can determine the first random access configuration according to the first index, so There is a corresponding relationship between the first index and the first random access configuration.
  • each random access configuration in the at least one random access configuration corresponds to a terminal device identification
  • the paging message includes the identification of the paged terminal device
  • the terminal device may, according to the identification of the paged terminal device, From at least one random access configuration, the first random access configuration is selected. There is a corresponding relationship between the identifier of the paged terminal device and the first random access configuration.
  • each random access configuration in at least one random access configuration corresponds to a random access preamble (or random access preamble identifier), and the paging message carries the first random access preamble identifier, and the terminal The device may determine the first random access configuration according to the first random access preamble identifier, and the first random access preamble has a corresponding relationship with the first random access configuration.
  • the access network device may send seventh configuration information to the terminal device, where the seventh configuration information is used to configure at least one random access configuration, and each random access configuration includes: random access Incoming preamble, random access preamble time-frequency domain resources, and PUSCH time-frequency domain resources.
  • the terminal device determines a first random access configuration from at least one random access configuration according to PDCCH signaling scrambled by a dedicated RNTI (such as C-RNTI), and the first random access configuration includes the first PUSCH resource.
  • the terminal device may determine the first PUSCH resource according to the first random access configuration.
  • the terminal device can also use the time-frequency domain resources of the random access preamble to send the random access preamble to the access network device.
  • the terminal device first judges whether the timing advance (TA) is valid, and if it is valid, the random access preamble is no longer sent to the access network device. If the TA fails, the random access preamble is sent again.
  • TA timing advance
  • the NAS message in the signaling bearer in the control plane may be used to transmit the paging response in S902.
  • the identity verification information carried in the paging response is generated according to the NAS security key of the terminal device.
  • N is a positive integer greater than 1.
  • a flow of a communication method is provided, and the flow is specifically an example of using the NAS message to transmit a paging response in the above scheme 2.
  • the procedure is described by taking the early downlink data transmission to the idle state terminal device as an example.
  • the terminal equipment in this process can be the same as the terminal equipment in Figure 8.
  • the base station can correspond to the access network equipment in Figure 8.
  • AMF/MME is the network element in the core network equipment, and the 2-step random access channel (random access channel)
  • the access channel (RACH) resource may correspond to the random access configuration of the above-mentioned scheme 2.
  • the process includes:
  • S1200 AMF/MME buffers downlink data.
  • the AMF/MME sends a paging message to the base station, where the paging message includes an indication of early downlink data transmission and an identifier of the paged terminal device.
  • the base station sends a paging message to the terminal device, where the paging message includes the downlink data early transmission indication and the identification of the paged terminal device.
  • the paged terminal device finds that the paging message carries its own terminal device identifier and includes an indication of early transmission of downlink data.
  • the terminal device generates a paging response, the paging response is integrity protected with a NAS key, and the paging response includes the terminal device identifier assigned by the core network.
  • S1204 The terminal device sends a Preamble to the base station.
  • the terminal device uses the 2-step RACH resource to send a NAS message to the base station, and the NAS message carries a paging response.
  • the configuration information of the 2-step RACH resource includes Preamble and Preamble time-frequency domain resources, PUSCH time-frequency domain resources, demodulation reference signal (DMRS) and so on.
  • DMRS demodulation reference signal
  • the terminal device can specifically use the PUSCH time-frequency domain resources in the 2-step RACH resource to send a NAS message to the base station.
  • the configuration method of the 2-step RACH resource please refer to the record in the above-mentioned scheme 2 for details, which is not described here.
  • the base station may send the paging response to the core network element, such as AMF/MME.
  • the core network element uses the security key of the terminal device to verify the NAS message of the terminal device. After the core network element passes the verification, it puts the downlink data in the NAS message and sends it to the base station, and the base station sends the downlink data to the terminal device. Or the above process can also be described as the following.
  • the base station sends a NAS message to the AMF/MME, and the NAS message carries a paging response.
  • S1207 The AMF/MME verifies the identity of the terminal device, and after the identity verification succeeds, executes S1208.
  • the AMF/MME sends a NAS message to the base station, where the NAS message includes downlink data.
  • S1209 The base station sends a NAS message to the terminal device.
  • the terminal device sends a NAS message to the base station, and the NAS message includes a downlink data response.
  • the downlink data response carries a positive acknowledgement (acknowledge, ACK), otherwise, the downlink data response carries a negative acknowledgement (NACK).
  • ACK positive acknowledgement
  • NACK negative acknowledgement
  • the access layer RRC signaling may be used to transmit the paging response in S902.
  • the identity verification information carried in the paging response is generated according to at least one or more of the following parameters:
  • the access layer key of the terminal device the physical cell identity of the source cell of the terminal device, the physical cell identity of the target cell of the terminal device, and the C-RNTI.
  • a flow of a communication method is provided.
  • the flow is specifically an example of using access layer RRC signaling to transmit a paging response in the foregoing solution 2.
  • AMF/MME is the network element in the core network equipment, and the 2-step random access channel ( The random access channel (RACH) resource may correspond to the random access configuration of the above scheme 2.
  • the process includes:
  • the AMF/MME sends a paging message to the base station.
  • the paging message includes the downlink data early transmission indication and the identification of the paged terminal device.
  • the identification of the paged terminal device may be allocated by the core network to the terminal device. , For example, S-TMSI, NG-5G-S-TMSI, etc.
  • the base station sends a paging message to the terminal device, where the paging message includes an indication of early downlink data transmission and an identifier of the paged terminal device.
  • the paged terminal device finds that the paging message carries its own terminal device identifier and includes an indication of early downlink data transmission.
  • the terminal device generates a paging response.
  • the paging response is an access stratum RRC message including terminal device identity verification information.
  • the RRC message may be an RRC connection recovery request message.
  • S1304 The terminal device sends a Preamble to the base station.
  • the terminal device uses the 2-step RACH resource to send a paging response to the base station. Or, it can be described as: the terminal device uses the 2-step RACH resource to send an RRC message to the base station, the RRC message carries a paging response, and the RRC message may specifically be an RRC recovery request. Specifically, the terminal device uses the PUSCH resource in the 2-step RACH resource to send the above-mentioned paging response or the above-mentioned RRC recovery request to the base station.
  • the base station may parse the paging response, obtain identity verification information, and use the security key of the terminal device to verify the identity information of the terminal device. And after the base station successfully authenticates the terminal device, the following S1307 is executed.
  • the base station sends a context recovery request of the terminal device to the core network element (for example, AMF/MME).
  • the context recovery request of the terminal device is used to indicate that the suspended RRC connection of the terminal device has been restored or the terminal device wants to access for early data transmission.
  • the core network element for example, AMF/MME
  • AMF/MME sends a context recovery response message to the base station.
  • the dedicated channel between the base station and the core network user plane node such as SMF or S-GW
  • the base station receives the downlink data, and sends an RRC connection release message to the terminal device, where the RRC connection release message carries the downlink data.
  • the terminal device sends downlink data feedback to the base station. For example, if the terminal device correctly receives the downlink data, the downlink data feedback is ACK, otherwise, the downlink data feedback is NACK.
  • the terminal device can use the PUSCH resource in the pre-configured 2-step RACH resource to send a paging response.
  • the base station allocates PUSCH resources for sending the paging response to the terminal device, which can reduce the random access procedure and reduce the downlink data delay.
  • a flow of a communication method is provided.
  • the flow is specifically an example of using a user plane bearer to transmit a paging response in the above-mentioned scheme 2.
  • an example of early transmission of downlink data to a terminal device in an inactive state is taken as an example for description.
  • the terminal equipment in this process can correspond to the terminal equipment in Figure 8 above
  • the base station can correspond to the access network equipment in Figure 8 above
  • the UPF can be a network element in the core network equipment
  • the 2-step RACH resource can correspond to the above Random access configuration in scheme 2.
  • the process includes:
  • S1400 The UPF sends downlink data to the base station.
  • the base station sends a paging message to the terminal device.
  • the paging message carries the downlink data early transmission indication and the identity of the paged terminal device.
  • the identity of the paged terminal device may be allocated by the base station to the terminal device. Identification, for example, Resume ID, or I-RNTI, etc.
  • the paged terminal device finds that the paging message carries its own terminal device identifier and includes the downlink data early transmission indication, and the terminal device generates a response message, and the response message includes the identity verification information of the terminal device.
  • the identity verification information of the device is generated according to one or more of the following parameters: one or more of the access layer key of the terminal device, the physical cell identity of the source cell, the cell identity of the target cell, the source C-RNIT, or Multiple.
  • the terminal device sends a Preamble to the base station. Specifically, the terminal device can obtain the Preamble and the time-frequency domain resources of the Preamble from the 2-step RACH resource, and then use the time-frequency domain resources of the Preamble to send the Preamble to the base station.
  • the terminal device uses the 2-step RACH resource to send an RRC message to the base station.
  • the RRC message may be an RRC recovery request message, and the RRC message carries a paging response.
  • the terminal device can use the PUSCH resource in the 2-step RACH configuration to send a paging response or an RRC message carrying the paging response to the terminal device.
  • S1405 The base station performs identity verification on the terminal device, and after the verification is passed, S1405 is executed.
  • the base station sends an RRC message to the terminal device, where the RRC message carries downlink data, and the RRC message may be an RRC connection release message.
  • the terminal device sends an RRC message to the base station, where the RRC message includes feedback of downlink data. For example, if the terminal device correctly receives the downlink data, the feedback of the downlink data is ACK, otherwise the feedback of the downlink data is NACK.
  • the terminal device can use the PUSCH resource in the pre-configured 2-step RACH resource to send a paging response.
  • the base station allocates PUSCH resources for sending the paging response to the terminal device, which can reduce the random access procedure and reduce the downlink data delay.
  • a flow of a communication method is provided, and the flow is specifically an example of using PUSCH to transmit a response in the above-mentioned scheme 2.
  • the terminal equipment in this process can correspond to the terminal equipment in Figure 8 above
  • the base station can correspond to the access network equipment in Figure 8 above
  • the UPF can be a network element in the core network equipment
  • the 2-step RACH resource can correspond to the above Random access configuration in scheme 2.
  • the process includes:
  • UPF sends downlink data to the base station.
  • the base station sends PDCCH signaling to the terminal equipment, indicating a 2-step random access resource information.
  • the PDCCH is scrambled with a terminal device identifier, and the terminal device identifier may be an identifier allocated by the base station to the terminal device, for example, Resume ID, or I-RNTI, C-RNTI, X-RNTI, and the like.
  • the indication information of a 2-step random access resource may be the configuration ID or preamble identifier of the 2-step random access resource.
  • the X-RNTI can be a C-RNTI or a newly defined RNTI.
  • X-RNTI can be similar to the terminal identifier of C-RNTI, used for scrambling PDCCH in the INACTVE state, and the length can be the same as the length of C-RNTI.
  • X-RNTI may be a dedicated identifier of the UE.
  • the scheduled terminal device generates a response message, the response message includes the identity verification information of the terminal device, and the identity verification information of the terminal device is generated according to one or more of the following parameters: One or more of the access layer key, the physical cell identity of the source cell, the cell identity of the target cell, and the source C-RNIT.
  • the terminal device sends a Preamble to the base station. Specifically, the terminal device can obtain the Preamble and the time-frequency domain resources of the Preamble from the 2-step RACH resource, and then use the time-frequency domain resources of the Preamble to send the Preamble to the base station.
  • the terminal device uses the 2-step RACH resource to send an RRC message to the base station.
  • the RRC message may be an RRC recovery request message, and the RRC message carries a paging response.
  • the terminal device can use the PUSCH resource in the 2-step RACH configuration to send a paging response or an RRC message carrying the paging response to the terminal device.
  • S2405 The base station performs identity verification on the terminal device, and after the verification is passed, S2406 is executed.
  • the base station sends an RRC message to the terminal device, where the RRC message carries downlink data, and the RRC message may be an RRC connection release message.
  • the terminal device sends an RRC message to the base station, where the RRC message includes feedback of downlink data. For example, if the terminal device correctly receives the downlink data, the feedback of the downlink data is ACK, otherwise the feedback of the downlink data is NACK.
  • the terminal device can use the PUSCH resource in the pre-configured 2-step RACH resource to send the response of the terminal device.
  • the base station in FIG. 8 above allocates PUSCH resources for sending a response to the terminal device after the terminal device sends the Preamble, which can reduce the random access procedure and reduce the downlink data delay.
  • the terminal device can use the PUSCH resource in the pre-configured 2-step RACH resource to send a response.
  • the base station in FIG. 8 above allocates PUSCH resources for sending a response to the terminal device after the terminal device sends the Preamble, which can reduce the random access procedure and reduce the downlink data delay.
  • the access network device sends downlink data to the terminal device.
  • the access network device sends a random access preamble response to the terminal device, and the random access preamble response carries downlink data.
  • the terminal device receives the downlink data from the access network device.
  • the terminal device receives the random access preamble response from the access network device.
  • the downlink data may be transmitted in the form of a media access control protocol data unit (MAC PDU).
  • the MAC PDU includes one or more MAC sub-PDUs. Some MAC sub-PDUs include two parts: MAC sub-header and payload. Some MAC sub-PDUs may only include the MAC sub-header.
  • the load part of the first type of MAC subPDU includes TA command (TA command), C-RNTI, and terminal equipment contention resolution (CR) information.
  • TA command TA command
  • C-RNTI C-RNTI
  • CR terminal equipment contention resolution
  • the load part of the second type of MAC subPDU includes RRC connection release messages or data (data), etc. Further, referring to 14, the MAC subheader part of the MAC subPDU of the first type may indicate that the load part of the MAC subPDCH of the second type carries RRC or Data.
  • the load part of the first type of MAC subPDU may include TA, C-RNTI, and CR information.
  • the load part of the second type of MAC sub-PDU may include a MAC service data unit (SDU).
  • the load part of the third type of MAC sub-PDU may include a MAC control element (CE).
  • CE MAC control element
  • the load part of the fourth type of MAC subPDU may include padding.
  • the MAC subheader part of the first type of MAC subPDU may include at least one of the following indication information.
  • the MAC subheader part of the first type of MAC sub-PDCU please refer to the oblique in FIG. 15 Line fill part.
  • the MAC SDU of the next MAC subPDU adjacent to the first type of MAC subPDU carries data or RRC signaling.
  • the MAC sub-header part of the MAC sub-PDU of the first type may also indicate that the MAC sub-PDU of the first type is followed by several MAC sub-PDUs. Sent to the terminal device 1. It can indicate 0.
  • each MAC subheader format As shown in Figures 16a to 16c, three MAC subheader formats of the second type of MAC subPDU are provided.
  • the R field is a reserved field with a value of 0.
  • the F field is used to indicate whether the L field exists, and the L field can be used to indicate the length of the load.
  • the logical channel ID (logical channel ID, LC ID) can determine whether the load of the MAC sub-PDU is MAC SDU, MAC CE, or padding.
  • the embodiment of the present application also provides a method for accessing an unlicensed channel.
  • the current unlicensed channel access is introduced.
  • each communication device such as a terminal device or a network device
  • LBT listen before talk
  • LBT is performed at the granularity of channels (for example, 20 MHz).
  • a signal for example, a data signal
  • a certain channel for example, the first channel
  • this detection process can be called a clear channel assessment (CCA) or a channel access process.
  • CCA clear channel assessment
  • the first channel access type may also be referred to as the first channel access process or the back-off-based channel access process.
  • the communication device may perform the above-mentioned LBT on the unlicensed channel, and only after detecting that the unlicensed channel is idle, can the unlicensed channel be used for a period of time. This time is called channel occupancy time (COT).
  • COT channel occupancy time
  • This process is also called LBT Type 4.
  • the communication device may execute the aforementioned LTB on an unlicensed channel, and randomly select a value A from a contention window, and only after detecting at least A free time slots, can it be determined that the channel access process is completed.
  • the idle time slot means that in a time slot, the energy of the energy detection capability is lower than a certain threshold.
  • the second channel access type can also be referred to as the second channel access process.
  • the terminal can only use the COT when the network device shares the COT with the terminal device. This process is also called LBT Type 2.
  • the second channel access process detecting a fixed duration, if the energy is lower than the threshold, it is considered idle.
  • the first channel access process is performed, and the paging is sent after the channel access process is completed.
  • the terminal device After receiving the paging message, the terminal device performs the first channel access process, and sends the random access preamble after the channel access process is completed.
  • an unlicensed channel access method and device are provided.
  • the principle of the method is that when a base station sends a paging message to a terminal device, the paging message may indicate the access of unlicensed channel access. For example, if the paging message instructs the terminal device to use the first channel access type to perform unlicensed channel access, or when the paging message instructs the terminal device to use the second channel access type to perform unlicensed channel access.
  • the terminal device after receiving the paging message, the terminal device can only use the first channel access type to perform unlicensed channel access, and the terminal device can perform unlicensed channel execution flexibly.
  • the method of this application can reduce the channel access duration of the terminal device.
  • the access network device in the process may be the RAN110 in FIG. 1 above, and the access network device may use the method described in FIG. 2 or FIG. 3 above.
  • the terminal device may be the terminal device 130 in FIG. 1 described above.
  • the process includes:
  • the access network device sends a paging message to the terminal device, where the paging message carries indication information.
  • the access network device receives the paging message from the terminal device.
  • the paging message can also be replaced with PDCCH signaling.
  • X-RNTI scrambled PDCCH can be C-RNTI or newly defined RNTI.
  • X-RNTI can be similar to the terminal identifier of C-RNTI, used for scrambling PDCCH in the INACTVE state, and the length can be the same as the length of C-RNTI.
  • X-RNTI may be a dedicated identifier of the UE.
  • S1801 The terminal device performs access to the unlicensed channel according to the instruction information.
  • the indication information may indicate the access type of the unlicensed channel.
  • the terminal device may perform unlicensed channel access according to the first channel access type.
  • the indication information indicates the second channel access type, the terminal device may perform unlicensed channel access according to the second channel access type.
  • the indication information may indicate the available time of the unlicensed channel. When the available time of the unlicensed channel is greater than or equal to the first time, the terminal device performs unlicensed channel access according to the second channel access type; when the available time of the unlicensed channel is less than all For the first duration, the terminal device performs unlicensed channel access according to the first channel access type.
  • the terminal device when the available time length of the unlicensed channel is equal to the first time length, the terminal device performs the unlicensed channel access according to the second channel access type. In other embodiments, when the available duration of the unlicensed channel is equal to the first duration, the terminal device performs unlicensed channel access according to the first channel access type.
  • the terminal device in the above flow chart in FIG. 17 can be in the RRC idle state, or in the inactive state, or even in the RRC connected state, etc., which is not limited.
  • the access network device determines the available duration of the unlicensed channel, and at the same time, the access network device may determine the paging message according to the available duration of the unlicensed channel Instructions in. For example, when the available duration of the unlicensed channel is greater than or equal to the second duration, the access network device may determine that the indication information is used to indicate the second channel access type. Otherwise, the access network device may determine that the indication information is used to indicate the first channel access type. Alternatively, the indication information may directly indicate the available time length of the unlicensed channel.
  • the indication information when the available duration of the unlicensed channel is equal to the second duration, the indication information is used to indicate the second channel access type. In other embodiments, when the available duration of the unlicensed channel is equal to the second duration, the indication information is used to indicate the access type of the first channel.
  • first and second in the first duration and the second duration are only for the convenience of distinguishing the description and do not limit the duration.
  • the specific first duration may be equal to the second duration or different.
  • both can be referred to as duration.
  • a flow of a method for accessing an unlicensed channel is provided.
  • the flow may be a specific example of the flow in FIG. 17, and the base station of the flow may correspond to the access network in the flow shown in FIG.
  • the device, the terminal device may correspond to the terminal device in the process shown in FIG. 17 above.
  • the process includes:
  • S1900 The base station performs unlicensed channel access.
  • the base station sends a paging message to the terminal device, where the paging message carries indication information of the channel access type or the used channel occupancy time.
  • the paging message may be replaced by PDCCH signaling.
  • the terminal device executes the channel access process according to the instruction.
  • the terminal device may be in an idle state or an inactive state, etc., which is not limited.
  • the base station may perform the channel access process first, and after the channel access process is completed. And if the remaining effective channel takes a long time, the base station can instruct the terminal device to use the second channel access process type for access. If the remaining effective channel occupancy time is short or not much, the base station can instruct the terminal device to use the first channel access process type for access. Or, after the channel access process performed by the base station is completed, the terminal device can be directly notified of the remaining effective channel occupation time. Correspondingly, the terminal device can determine whether to use the first or second channel access process to perform the access process according to this duration. For example, if the duration is lower than a predefined threshold, the first channel access process is performed.
  • the terminal device may directly perform the uplink transmission operation without performing channel access during the above-mentioned remaining effective channel occupation time. For example, sending a paging response to the network device. It can be understood that, in addition to sending the above-mentioned indication by using a paging message, the terminal device also carries the above-mentioned indication in the paging message.
  • the PDCCH can also be used to send the above-mentioned indication, that is, the above-mentioned indication is carried in the PDCCH.
  • the base station indicates the channel access type of the terminal device through the indication information
  • the following two expression modes can be used: a bit value is used to indicate the first channel access process type or the second channel access process type. For example, use 0 to represent the first channel access process type, and use 1 to represent the second channel access process type.
  • an enumerated type value is used to indicate the first channel access process type or the second channel access process type.
  • the first value is used to represent the first channel access process type
  • the second value is used to represent the second channel access process type. It should be noted that if the type of the second channel access process is indicated above, the terminal device can perform the channel access of the second channel access process. At this time, the channel detection of the terminal device is for a fixed duration, and if the energy is lower than the threshold, it is considered idle.
  • the base station instructs the terminal device to use which channel access process in the paging message or the downlink PDCCH, so that the terminal device has the opportunity to use the second channel access process and reduces the delay of the channel access process.
  • the embodiment of the present application also provides an application scenario: for an inactive terminal device, when using a pre-configured PUSCH resource to send uplink data (such as a paging response), if the terminal device has not previously established a downlink beam configuration with the access network device
  • uplink data such as a paging response
  • the terminal device has no way to determine on which SSB the PDCCH sent in response to the uplink data (ie, downlink data) is received.
  • SSBs synchronization signal blocks
  • Solution 1 Configure the PUSCH resource and SSB correspondence relationship as many-to-one or one-to-one.
  • the terminal device determines that the uplink data is sent on the PUSCH resource through this mapping relationship, and then the PUSCH resource corresponds to this PUSCH resource Monitor the PDCCH on the SSB.
  • Solution 2 There is no correspondence between PUSCH resources and SSB. After the terminal device selects a downlink SSB, it indicates the selected SSB identifier when sending data on the PUSCH resource, and then monitors the PDCCH on this SSB.
  • the access network device in this process can be the RAN110 in Figure 1 above, and the access network device can use Figure 2 or Figure 2 above. 3 shows the network architecture.
  • the terminal device may be the terminal device 130 in FIG. 1 described above.
  • the process includes:
  • the terminal device uses the first PUSCH resource to send uplink data to the access network device.
  • the access network device uses the first PUSCH resource to receive uplink data from the terminal device.
  • the terminal device determines the first SSB corresponding to the first PUSCH resource according to the correspondence between the PUSCH resource and the SSB.
  • the correspondence between PUSCH resources and SSB may be pre-configured.
  • the access network device can send configuration information to the terminal device.
  • the configuration information may configure the correspondence between PUSCH resources and SSB.
  • the terminal device can receive configuration information from the access network device.
  • the pre-configured PUSCH resources may include PUSCH time domain resources, frequency domain resources, or DMRS information, etc., which are not limited.
  • the terminal device can configure the correspondence between the first PUSCH resource and the SSB ID through an RRC dedicated message or a broadcast message.
  • S2002 The terminal device monitors the PDCCH on the first SSB.
  • the terminal device in the above-mentioned flow in FIG. 20 may be in an RRC idle state, an inactive state, or even an RRC connected state, etc., which is not limited.
  • the terminal device can pre-configure the corresponding relationship between the PUSCH resource and the SSB, monitor the PDCCH, and receive downlink data.
  • a flow of a communication method is provided, and the flow may be an example of the flow shown in FIG. 19.
  • the terminal device in this process may be the terminal device in FIG. 19, and the base station may be the access network device in FIG. 19, and the process includes:
  • the terminal device receives the mapping relationship between the pre-configured PUSCH resource and the SSB from the broadcast information.
  • the pre-configured PUSCH resources may include PUSCH time domain resources, frequency domain resources, or DMRS information, etc., which are not limited.
  • the terminal device can select an SSB with a pre-configured PUSCH resource from the SSB set that meets the first threshold. Or, the terminal device selects an SSB that has a pre-configured PUSCH resource in the SSB set that meets the second threshold ⁇ the first threshold. Or, the terminal device selects the SSB with the highest RSRP and the pre-configured PUSCH resource in the SSB set that meets the first threshold.
  • the terminal device sends data through the selected pre-configured PUSCH resource.
  • the base station determines the SSB selected by the terminal device according to the time domain resource, frequency domain resource or DMRS information of the pre-configured PUSCH.
  • the terminal device After the terminal device sends the data, it starts a Timer, and monitors the PDCCH of the SSB corresponding to the PUSCH resource in this timer.
  • the base station detects that the terminal device sends data on the PUSCH resource, and determines the corresponding SSB index according to the correspondence between the PUSCH resource and the SSB, or according to the correspondence between the RRC dedicated message and the SSB.
  • the base station sends the PDCCH on the PDCCH search space corresponding to the SSB.
  • the base station may indicate PDSCH resources on the PDCCH, and send response information on the PDSCH resources.
  • the base station can indicate ACK or NACK information on the PDCCH.
  • the access network device in this process can be the RAN110 in Figure 1 above, and the access network device can use Figure 2 or Figure 2 above. 3 shows the network architecture.
  • the terminal device may be the terminal device 130 in FIG. 1 described above.
  • the process includes:
  • the terminal device uses the first PUSCH resource to send uplink data and the first SSB identifier to the access network device.
  • the access network device receives the uplink data and the first SSB identifier from the terminal device.
  • S2201 The terminal device monitors the PDCCH on the first SSB.
  • the access network device sends instruction information to the terminal device, where the instruction information is used to indicate that the terminal device needs to report the SSB ID.
  • the terminal device executes the above-mentioned S2200.
  • a flow of a communication method is provided, and the flow may be an example of the flow shown in FIG. 21.
  • the terminal device in this process may be the terminal device in FIG. 21, and the base station may be the access network device in FIG. 21, and the process includes:
  • the terminal device receives an indication message from the broadcast information, the information instructs the inactive terminal device to report the SSB ID when using the pre-configured PUSCH resource for data transmission. After sending data on the PUSCH resource, the terminal device determines to monitor the SSB where the PDCCH is located. If the network does not instruct the terminal device to report the SSB ID, the terminal device uses the SSB predefined by the protocol (for example, SSB1) to receive the feedback.
  • the protocol for example, SSB1
  • the terminal device selects an SSB that has a pre-configured PUSCH resource from the SSB set that meets the first threshold. Or, select an SSB with a pre-configured PUSCH resource in the SSB set that meets the second threshold (the first threshold). Or, select the SSB with the highest RSRP and the pre-configured PUSCH resource in the SSB set that meets the first threshold.
  • the first threshold and the second threshold may be configured by the network to the terminal device, or may be agreed upon by agreement.
  • the terminal device sends the data and the SSB ID through the selected PUSCH resource.
  • the UCI part/PUCCH indicates the SSB ID.
  • the terminal device After the terminal device sends the data, it starts a Timer and monitors the PDCCH of the SSB within this timer.
  • S2303 The base station reads the SSB ID.
  • the base station detects that the terminal device sends data on the PUSCH resource, determines the corresponding SSB, and sends the PDCCH on the PDCCH search space corresponding to the SSB.
  • the base station may indicate PDSCH resources on the PDCCH, and send response information on the PDSCH resources.
  • the base station can indicate ACK or NACK information on the PDCCH.
  • the terminal device maps or explicitly indicates an SSB ID when sending data on the pre-configured PUSCH, and monitors the PDCCH of the SSB to help the network determine which PDCCH of the appropriate SSB to send the scheduling response to the terminal device.
  • the communication device may include corresponding hardware structures and/or software modules for performing various functions.
  • the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • an apparatus for implementing any of the above-mentioned methods.
  • an apparatus includes units (or means) for implementing each step performed by the terminal device in any of the above methods.
  • a device is also provided, including units (or means) for implementing each step performed by the access network device in any of the above methods.
  • FIG. 24 is a schematic block diagram of an apparatus 2500 provided by an embodiment of the application, which is used to implement the functions of the access network device or the terminal device in the foregoing method.
  • the device may be a software module or a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the device 2500 includes a communication unit 2501 and may also include a processing unit 2502.
  • the communication unit 2501 can communicate with the outside.
  • the processing unit 2502 is used for processing, for example, controlling the communication unit 2501 to receive a paging message, or to send a paging response.
  • the communication unit 2501 may also be called a communication interface, a transceiver unit, an input/output interface, and so on.
  • the communication unit 2501 may include a sending unit and/or a receiving unit, etc., which are respectively configured to perform the sending or receiving steps of the terminal device or the access network device in the flow of FIG. 5 to FIG. 24 above.
  • the apparatus 2500 can implement the steps corresponding to the terminal device execution in the process shown in FIG. 8 above, and the apparatus 2500 can be a terminal device, or a chip or circuit configured in the terminal device.
  • the communication unit 2501 is used to perform the transceiving-related operations on the terminal device side in the above method embodiment
  • the processing unit 2502 is used to perform the processing related operations on the terminal device side in the above method embodiment.
  • the communication unit 2501 is configured to receive a paging message from an access network device, and use the first PUSCH resource to send a paging response to the access network device.
  • the processing unit 2502 is configured to process paging messages, or generate paging responses, and so on.
  • the first PUSCH resource is pre-configured, or the first PUSCH resource is determined according to a paging message, or the first PUSCH resource is determined according to pre-configuration and the paging message
  • the paging response carries the identity and identity verification information of the terminal device, and the identity and identity verification information of the terminal device are used for identity verification of the terminal device.
  • the optional first PUSCH resource is pre-configured.
  • the communication unit 2501 is further configured to receive first configuration information from the access network device, where the first configuration information is used to configure the first PUSCH resource; the processing unit 2502 is further configured to Information to determine the first PUSCH resource.
  • the first PUSCH resource is determined according to the paging message, and the paging message carries configuration information of the first PUSCH resource.
  • the processing unit 2502 is further configured to The configuration information of the first PUSCH resource carried in the message determines the first PUSCH resource.
  • the first PUSCH resource is determined according to pre-configuration and the paging message
  • the communication unit 2501 is further configured to receive second configuration information from the access network device, and the second configuration information Used to configure at least one PUSCH resource.
  • the processing unit 2502 is further configured to determine the first PUSCH resource according to the paging message.
  • each PUSCH resource in the at least one PUSCH resource corresponds to an index
  • the paging message carries a first index
  • the processing unit 2502 is determining the first PUSCH resource according to the paging message When, it is specifically configured to: select the first PUSCH resource from the at least one PUSCH resource according to the first index, and the first PUSCH resource corresponds to the first index.
  • each PUSCH resource in the at least one PUSCH resource corresponds to a terminal device identifier
  • the paging message carries the identifier of the paged terminal device
  • the processing unit 2502 is determining according to the paging message
  • the first PUSCH resource is specifically used to select the first PUSCH resource from the at least one PUSCH resource according to the identification of the paged terminal device carried in the paging message, and the first PUSCH resource The resource corresponds to the identification of the paged terminal device.
  • each PUSCH in the at least one PUSCH resource corresponds to a random access preamble identifier
  • the paging message carries the first random access preamble identifier
  • the processing unit 2502 is When determining the first PUSCH resource, the paging message is specifically used to: select the first PUSCH resource from the at least one PUSCH resource according to the first random access preamble identifier, and the first PUSCH resource
  • the PUSCH resource corresponds to the first random access preamble identifier.
  • the first PUSCH resource is determined according to pre-configuration and the paging message.
  • the communication unit 2501 is further configured to receive third configuration information from the access network device, where the third configuration information is used to configure the time-frequency domain resource part of the first PUSCH resource, and the paging message Carrying the remaining part of the time-frequency domain resource in the first PUSCH resource;
  • the processing unit 2502 is further configured to determine the remaining part of the time-frequency domain resource in the first PUSCH resource according to the paging message, and, according to The part of the time-frequency domain resource in the first PUSCH resource and the remaining part of the time-frequency domain resource in the first PUSCH resource determine the first PUSCH resource.
  • the first PUSCH resource is determined according to the paging message, the paging message carries fifth configuration information, and the fifth configuration information is used to configure a random access preamble, the The time-frequency domain resources of the random access preamble and the first PUSCH resource; the processing unit 2502 is further configured to determine the first PUSCH resource according to the fifth configuration information carried in the paging message.
  • the first PUSCH resource is determined according to pre-configuration and the paging message; the communication unit 2501 is further configured to receive sixth configuration information from the access network device, and the sixth configuration information Used to configure a random access preamble, the time-frequency domain resources of the random access preamble, and a part of the time-frequency domain resources in the first PUSCH resource, and the paging message carries the first PUSCH The remaining part of the time-frequency domain resource in the resource; the processing unit 2502 is further configured to determine the remaining part of the time-frequency resource in the first PUSCH resource according to the paging message, and according to the time-frequency resource in the first PUSCH resource The part in the frequency domain resource and the remaining part of the time-frequency domain resource in the first PUSCH resource determine the first PUSCH resource.
  • the first PUSCH resource is determined according to pre-configuration and the paging message
  • the communication unit 2501 is further configured to receive seventh configuration information from the access network device, and the seventh configuration information Used to configure at least one random access configuration, each random access configuration includes: a random access preamble, time-frequency domain resources of the random access preamble, and time-frequency domain resources of the PUSCH; a processing unit 2502, It is also used to determine a first random access configuration from the at least one random access configuration according to the paging message, where the first random access configuration includes the first PUSCH resource, and according to all The first random access configuration determines the first PUSCH resource.
  • each random access configuration in the at least one random access configuration corresponds to an index
  • the paging message carries the first index
  • the processing unit 2502 is configured to obtain information from the at least one index according to the paging message.
  • the first random access configuration when the first random access configuration is determined, it is specifically used to: select the first random access configuration from the at least one random access configuration according to the first index, and the first random access configuration The random access configuration corresponds to the first index.
  • each random access configuration in the at least one random access configuration corresponds to a terminal device identifier
  • the paging message carries the identifier of the paged terminal device
  • the processing unit 2502 is The message, when determining the first random access configuration from the at least one random access configuration, is specifically used to: select from the at least one random access configuration according to the identification of the paged terminal device In the first random access configuration, the first random access configuration corresponds to the identity of the paged terminal device.
  • each random access configuration in the at least one random access configuration corresponds to a random access preamble identifier
  • the paging message carries a first random access preamble identifier
  • the processing unit 2502 is in accordance with The paging message, when determining the first random access configuration from the at least one random access configuration, is specifically used to: according to the first random access preamble identifier, from the at least one random access configuration In the configuration, the first random access configuration is selected, and the first random access configuration corresponds to the first random access preamble identifier.
  • the communication unit 2501 is further configured to use the time-frequency domain resources of the random access preamble to send the random access preamble to the access network device; or, when the timing advance TA is invalid , Using the time-frequency domain resources of the random access preamble to send the random access preamble to the access network device.
  • the communication unit 2501 is further configured to receive a random access preamble response message from the access network device, where the random access preamble response message includes downlink data.
  • the paging message includes a downlink data early transmission indication or a random access preamble identifier
  • the communication unit 2501 when using the first PUSCH resource to send a paging response to the access network device, Specifically, it is used to send a paging response to the access network device in the first PUSCH resource according to the downlink data early transmission indication or the random access preamble identifier.
  • the paging response is a non-access stratum NAS message
  • the identity verification information of the terminal device is generated according to the NAS security key of the terminal device.
  • the paging response is a radio resource control RRC message
  • the identity verification information of the terminal device is generated according to one or more of the following parameters:
  • the access layer key of the terminal device the physical cell identity of the source cell of the terminal device, the physical cell identity of the target cell of the terminal device, and the source cell radio network temporary identity C-RNTI.
  • the apparatus 2500 may implement the steps corresponding to the access network device execution steps in the process shown in FIG. 8 above, and the apparatus 2500 may be an access network device, or a chip or circuit configured in the access network device.
  • the communication unit 2501 is used to perform the transceiving-related operations on the access network device side in the above method
  • the processing unit 2502 is used to perform the processing related operations on the access network device side in the above method embodiment.
  • the communication unit 2501 is configured to send a paging message to a terminal device, and use the first PUSCH resource to receive a paging response from the terminal device.
  • the processing unit 2502 is used to process paging messages and generate paging responses.
  • the first PUSCH resource is pre-configured, or the first PUSCH resource is determined according to a paging message, or the first PUSCH resource is determined according to the pre-configuration and the paging message, the The paging response carries the identity and identity verification information of the terminal device, and the identity and identity verification information of the terminal device are used for identity verification of the terminal device.
  • the first PUSCH resource is pre-configured, and the communication unit 2501 is further configured to send first configuration information to the terminal device, where the first configuration information is used to configure the first PUSCH resource.
  • the first PUSCH resource is determined according to the paging message, and the paging message carries configuration information of the first PUSCH resource.
  • the first PUSCH resource is determined according to pre-configuration and the paging message, and the communication unit 2501 is further configured to send second configuration information to the terminal device, where the second configuration information is used for configuration At least 1 PUSCH resource.
  • each PUSCH resource in the at least one PUSCH resource corresponds to an index
  • the paging message carries a first index
  • the first index corresponds to the first PUSCH resource
  • each PUSCH resource in the at least one PUSCH resource corresponds to a terminal device identifier
  • the paging message carries an identifier of the paged terminal device
  • the identifier of the paged terminal device corresponds to all The first PUSCH resource.
  • each PUSCH in the at least one PUSCH resource corresponds to a random access preamble identifier
  • the paging message carries the first random access preamble identifier
  • the first random access The preamble identifier corresponds to the first PUSCH resource.
  • the first PUSCH resource is determined according to pre-configuration and the paging message, and the communication unit 2501 is further configured to send third configuration information to the terminal device, where the third configuration information is used for configuration The part of time-frequency domain resources in the first PUSCH resource;
  • the paging message carries the remaining part of the time-frequency domain resource in the first PUSCH resource
  • the first PUSCH resource includes the part of the time-frequency domain resource in the first PUSCH resource and the first PUSCH resource.
  • the remaining part of the time-frequency domain resources in the PUSCH resource is not limited to the remaining part of the time-frequency domain resources in the PUSCH resource.
  • the first PUSCH resource is pre-configured, and the communication unit 2501 is further configured to send fourth configuration information to the terminal device, where the fourth configuration information is used to configure a random access preamble, the Random access to the time-frequency domain resources of the preamble and the first PUSCH resource.
  • the first PUSCH resource is determined according to the paging message, the paging message carries fifth configuration information, and the fifth configuration information is used to configure a random access preamble, the Random access to the time-frequency domain resources of the preamble and the first PUSCH resource.
  • the first PUSCH resource is determined according to pre-configuration and the paging message
  • the communication unit 2501 is further configured to send sixth configuration information to the terminal device, where the sixth configuration information is used Configuring a random access preamble, a time-frequency domain resource of the random access preamble, and a part of the time-frequency domain resource in the first PUSCH resource;
  • the paging message carries the remaining part of the time-frequency domain resource in the first PUSCH resource
  • the first PUSCH resource includes the part of the time-frequency domain resource in the first PUSCH resource and the first PUSCH resource.
  • the first PUSCH resource is determined according to pre-configuration and the paging message
  • the communication unit 2501 is further configured to send seventh configuration information to the terminal device, where the seventh configuration information is used for configuration At least one random access configuration, where each random access configuration includes: a random access preamble, a time-frequency domain resource of the random access preamble, and a time-frequency domain resource of the PUSCH.
  • each random access configuration in the at least one random access configuration corresponds to an index
  • the paging message carries a first index
  • the first index corresponds to the first random access configuration
  • the first random access configuration includes the first PUSCH resource.
  • each random access configuration in the at least one random access configuration corresponds to a terminal device identification
  • the paging message carries the identification of the paged terminal device
  • the identification of the paged terminal device
  • the first random access configuration includes the first PUSCH resource.
  • each random access configuration in the at least one random access configuration corresponds to a random access preamble identifier
  • the paging message carries a first random access preamble identifier
  • the first random access preamble identifier corresponds to the first random access configuration
  • the first random access configuration includes the first PUSCH resource.
  • the communication unit 2501 is further configured to use the time-frequency domain resources of the random access preamble to receive the random access preamble from the terminal device.
  • the communication unit 2501 is further configured to send a random access preamble response message to the terminal device, where the random access preamble response message includes downlink data.
  • the paging message includes a downlink data early transmission indicator or a random access preamble identifier, and when the communication unit 2501 uses the first PUSCH resource to access the paging response from the terminal device, it is specifically used to:
  • a paging response from the terminal device is received on the first PUSCH resource.
  • the paging response is a non-access stratum NAS message, and the identity verification information of the terminal device is generated according to the NAS security key of the terminal device.
  • the paging response is a radio resource control RRC message, and the identity verification information of the terminal device is generated according to one or more of the following parameters:
  • the access layer key of the terminal device the physical cell identity of the source cell of the terminal device, the physical cell identity of the target cell of the terminal device, and the source cell radio network temporary identity C-RNTI.
  • the apparatus 2500 can implement the step corresponding to the terminal device in the process shown in FIG. 17 above.
  • the apparatus 2500 may be a terminal device, or a chip or circuit configured in the terminal device.
  • the communication unit 2501 is used to perform the transceiving-related operations on the terminal device side in the above method
  • the processing unit 2502 is used to perform the processing related operations on the terminal device side in the above method embodiment.
  • the communication unit 2501 is configured to receive a paging message from an access network device, and the paging message includes indication information.
  • the processing unit 2502 is configured to perform unlicensed channel access according to the instruction information.
  • the indication information is used to indicate the access type of the unlicensed channel
  • the processing unit 2502 is specifically used to: when performing access to the unlicensed channel according to the indication information:
  • the indication information is used to indicate the first channel access type, perform the unlicensed channel access according to the first channel access type; or, when the indication information is used to indicate the second channel access In the case of the access type, the access of the unlicensed channel is performed according to the second channel access type.
  • the indication information is used to indicate the available duration of the unlicensed channel
  • the processing unit 2502 is specifically used to: when performing access to the unlicensed channel according to the indication information:
  • the unlicensed channel access is performed according to the second channel access type; or, when the available time of the unlicensed channel is less than the first When the duration is long, the unlicensed channel access is performed according to the first channel access type.
  • the terminal device is in a radio resource control RRC idle state, or the terminal device is in an inactive state.
  • the apparatus 2500 can implement the steps corresponding to the access network equipment in the process shown in FIG. 17 above.
  • the apparatus 2500 may be an access network device, or a chip or circuit configured in the access network device.
  • the communication unit 2501 is used to perform the transceiving-related operations on the access network device side in the above method
  • the processing unit 2502 is used to perform the processing related operations on the access network device side in the above method embodiment.
  • the processing unit 2502 is configured to determine the available duration of an unlicensed channel, and determine the indication information according to the available duration of the unlicensed channel.
  • the communication unit 2502 is configured to send a paging message to the terminal device, and the paging message carries indication information and the like.
  • the processing unit 2502 determines the indication information according to the available time of the unlicensed channel, it is specifically configured to determine the indication when the available time of the unlicensed channel is greater than or equal to the second duration
  • the information is the second channel access type; or, when the available time length of the unlicensed channel is less than the second time length, it is determined that the indication information is the first channel access type.
  • the indication information is used to indicate the available time length of the unlicensed channel.
  • the apparatus 2500 can implement the steps corresponding to the terminal device execution in the process shown in FIG. 19 above, and the apparatus 2500 can be a terminal device, or a chip or circuit configured in the terminal device.
  • the communication unit 2501 is used to perform the transceiving-related operations on the terminal device side in the above method embodiment
  • the processing unit 2502 is used to perform the processing related operations on the terminal device side in the above method embodiment.
  • the communication unit 2501 is configured to use the first PUSCH resource to send uplink data to the access network device.
  • the processing unit 2502 is configured to determine the first SSB corresponding to the first PUSCH resource according to the correspondence between the PUSCH resource and the synchronization signal block SSB.
  • the processing unit 2502 is also configured to monitor the PDCCH on the first SSB.
  • the communication unit 2501 is further configured to receive configuration information from the access network device, where the configuration information is used to configure the correspondence between the PUSCH resource and the SSB.
  • the apparatus 2500 may implement the steps corresponding to the access network device execution steps in the flow shown in FIG. 19 above, and the apparatus 2500 may be an access network device, or a chip or circuit configured in the access network device.
  • the communication unit 2501 is used to perform the transceiving-related operations on the access network device side in the above method
  • the processing unit 2502 is used to perform the processing related operations on the access network device side in the above method embodiment.
  • the communication unit 2501 is configured to use the first PUSCH resource to receive uplink data from the terminal device; the processing unit 2502 is configured to determine the first SSB corresponding to the first PUSCH resource according to the correspondence between the PUSCH resource and the synchronization signal block SSB . The communication unit 2501 is further configured to send a PDCCH on the first SSB.
  • the communication unit 2501 is further configured to send configuration information to a terminal device, where the configuration information is used to configure the correspondence between the PUSCH resource and the SSB.
  • the apparatus 2500 can implement the steps corresponding to the terminal device execution in the process shown in FIG. 21 above, and the apparatus 2500 can be a terminal device, or a chip or circuit configured in the terminal device.
  • the communication unit 2501 is used to perform the transceiving-related operations on the terminal device side in the above method embodiment
  • the processing unit 2502 is used to perform the processing related operations on the terminal device side in the above method embodiment.
  • the processing unit 2502 determines the first SSB; the communication unit 2501 is configured to use the first PUSCH resource to send uplink data and the identification of the first SSB to the access network device; the processing unit 2502 is configured to use the first SSB, Monitor PDCCH.
  • the communication unit 2501 is further configured to receive instruction information from the access network device, where the instruction information is used to indicate that the terminal device needs to report the SSB identifier.
  • the apparatus 2500 may implement the steps corresponding to the access network device execution steps in the flow shown in FIG. 21 above, and the apparatus 2500 may be an access network device, or a chip or circuit configured in the access network device.
  • the communication unit 2501 is used to perform the transceiving-related operations on the access network device side in the above method
  • the processing unit 2502 is used to perform the processing related operations on the access network device side in the above method embodiment.
  • the communication unit 2501 is configured to use the first PUSCH to receive uplink data from the terminal equipment and the identification of the first synchronization signal block SSB, and to send the physical downlink control channel PDCCH to the terminal equipment on the first SSB.
  • the processing unit 2502 is used for processing uplink data and so on.
  • the communication unit 2501 is further configured to send instruction information to the terminal device, where the instruction information is used to indicate that the terminal device needs to report the identification of the SSB.
  • each unit in the device can be all implemented in the form of software called by processing elements; they can also be all implemented in the form of hardware; part of the units can also be implemented in the form of software called by the processing elements, and some of the units can be implemented in the form of hardware.
  • each unit can be a separate processing element, or it can be integrated in a certain chip of the device for implementation.
  • it can also be stored in the memory in the form of a program, which is called and executed by a certain processing element of the device.
  • each step of the above method or each of the above units may be implemented by an integrated logic circuit of hardware in a processor element or implemented in a form of being called by software through a processing element.
  • the unit in any of the above devices may be one or more integrated circuits configured to implement the above methods, for example: one or more application specific integrated circuits (ASICs), or, one or Multiple microprocessors (digital singnal processors, DSPs), or, one or more field programmable gate arrays (Field Programmable Gate Arrays, FPGAs), or a combination of at least two of these integrated circuits.
  • ASICs application specific integrated circuits
  • DSPs digital singnal processors
  • FPGAs Field Programmable Gate Arrays
  • the unit in the device can be implemented in the form of a processing element scheduler
  • the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call programs.
  • CPU central processing unit
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • the above receiving unit is an interface circuit of the device for receiving signals from other devices.
  • the receiving unit is an interface circuit used by the chip to receive signals from other chips or devices.
  • the above unit for sending is an interface circuit of the device for sending signals to other devices.
  • the sending unit is an interface circuit used by the chip to send signals to other chips or devices.
  • the network equipment includes: an antenna 2601, a radio frequency device 2602, and a baseband device 2603.
  • the antenna 2601 is connected to the radio frequency device 2602.
  • the radio frequency device 2602 receives the information sent by the terminal device through the antenna 2601, and sends the information sent by the terminal device to the baseband device 2603 for processing.
  • the baseband device 2603 processes the information of the terminal device and sends it to the radio frequency device 2602.
  • the radio frequency device 2602 processes the information of the terminal device and sends it to the terminal device via the antenna 2601.
  • the baseband device 2603 may include one or more processing elements 26031, for example, including a main control CPU and other integrated circuits.
  • the baseband device 2603 may also include a storage element 260326 and an interface 26033.
  • the storage element 260326 is used to store programs and data; the interface 26033 is used to exchange information with the radio frequency device 2602.
  • the interface is, for example, a common public radio interface. , CPRI).
  • the above apparatus for network equipment may be located in the baseband device 2603.
  • the above apparatus for network equipment may be a chip on the baseband device 2603.
  • the chip includes at least one processing element and an interface circuit, wherein the processing element is used to execute the above diagram. For each step of any method executed by the access network equipment in the flow shown in FIG.
  • the interface circuit is used to communicate with other devices.
  • the unit for the network device to implement each step in the method shown in Figures 4 to 23 can be implemented in the form of a processing element scheduler.
  • the device for the network device includes a processing element and a storage element.
  • the processing element The program stored in the storage element is called to execute the method executed by the access network device in the method embodiments of FIGS. 4 to 23 above.
  • the storage element may be a storage element with the processing element on the same chip, that is, an on-chip storage element, or a storage element on a different chip from the processing element, that is, an off-chip storage element.
  • the unit of the network device that implements the steps in the above methods of FIGS. 4 to 23 may be configured as one or more processing elements, and these processing elements are provided on the baseband device, where the processing elements may be integrated Circuits, for example: one or more ASICs, or, one or more DSPs, or, one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form a chip.
  • the network equipment that implements the various steps in the above method can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • the baseband device includes the SOC chip for implementing the above Figures 4 to 4 The method shown in 23.
  • At least one processing element and storage element can be integrated in the chip, and the processing element can call the stored program of the storage element to implement the method executed by the above access network device; or, at least one integrated circuit can be integrated in the chip to implement The method executed by the above access network device; or, it can be combined with the above implementation.
  • the functions of some units are implemented in the form of calling programs by processing elements, and the functions of some units are implemented in the form of integrated circuits.
  • the above apparatus for network equipment may include at least one processing element and an interface circuit, wherein at least one processing element is used to execute any of the methods performed by the access network equipment provided in the embodiments shown in FIGS. 4 to 23.
  • the processing element can execute part or all of the steps executed by the access network device in the first way: calling the program stored in the storage element; or in the second way: through the integrated logic circuit of the hardware in the processor element Part or all of the steps executed by the access network device are executed in a manner of combining instructions; of course, part or all of the steps executed by the above network device may also be executed in combination with the first manner and the second manner.
  • the processing element here is the same as the above description, and it may be a general-purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above method, such as: one or more ASICs, or, one or more micro-processing DSP, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.
  • the storage element can be a memory or a collective term for multiple storage elements.
  • the second structural diagram of the network device includes a processor 2710, a memory 2720, and an interface 2730, and the processor 2710, a memory 2720 and the interface 2730 are signal-connected.
  • the network device may be the access network device in the process shown in Figs. 4 to 23 above, and is used to implement the operations shown in Fig. 4 to Fig. 23 in the above method embodiment.
  • the apparatus 2500 shown in FIG. 24 may be located in the network device, and the functions of each unit may be implemented by the processor 2710 calling a program stored in the memory 2720. That is, the device 2500 shown in FIG. 24 may include a memory and a processor, and the memory is used to store a program, and the program is called by the processor to execute the method in the above method embodiments in FIGS. 4 to 23.
  • the processor here may be an integrated circuit with signal processing capability, such as a CPU.
  • the functions of each unit shown in FIG. 25 may be implemented by one or more integrated circuits configured to implement the methods of FIGS. 4 to 23 above. For example: one or more ASICs, or, one or more microprocessors DSP, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms. Or, the above implementations can be combined.
  • the terminal equipment includes: an antenna 2810, a radio frequency device 2820, and a signal processing part 2830.
  • the antenna 2810 is connected to the radio frequency device 2820.
  • the radio frequency device 2820 receives the information sent by the network device through the antenna 2810, and sends the information sent by the network device to the signal processing part 2830 for processing.
  • the signal processing part 2830 processes the information of the terminal equipment and sends it to the radio frequency device 2820.
  • the radio frequency device 2820 processes the information of the terminal equipment and sends it to the network equipment via the antenna 2810.
  • the signal processing part 2830 may include a modem subsystem, which is used to process data at various communication protocol layers; it may also include a central processing subsystem, which is used to process terminal equipment operating systems and application layers; in addition, it may also Including other subsystems, such as multimedia subsystems, peripheral subsystems, etc., where the multimedia subsystem is used to control the terminal device camera, screen display, etc., and the peripheral subsystem is used to realize the connection with other devices.
  • the modem subsystem can be a separate chip.
  • the above apparatus for terminal equipment may be located in the modem subsystem.
  • the modem subsystem may include one or more processing elements 2831, for example, including a main control CPU and other integrated circuits.
  • the modem subsystem may also include a storage element 2832 and an interface circuit 2833.
  • the storage element 2832 is used to store data and programs, but the program used to execute the method executed by the terminal device in the methods shown in FIGS. 4 to 23 may not be stored in the storage element 2832, but stored in the modem.
  • the modem subsystem is loaded and used when in use.
  • the interface circuit 2833 is used to communicate with other subsystems.
  • the above apparatus for terminal equipment may be located in a modem subsystem, which may be implemented by a chip.
  • the chip includes at least one processing element and an interface circuit, wherein the processing element is used to perform the above-mentioned FIGS. 4 to 23. Shows the steps of any method executed by the terminal equipment, and the interface circuit is used to communicate with other devices.
  • the unit for the terminal device to implement each step in the above method can be implemented in the form of a processing element scheduler.
  • the device for the terminal device includes a processing element and a storage element, and the processing element calls the program stored by the storage element to The method executed by the terminal device in the method embodiments shown in FIG. 4 to FIG. 23 is executed.
  • the storage element may be a storage element whose processing element is on the same chip, that is, an on-chip storage element.
  • the program used to execute the method executed by the terminal device in the methods shown in FIGS. 4 to 23 above may be in a storage element on a different chip from the processing element, that is, an off-chip storage element.
  • the processing element calls or loads a program from the off-chip storage element on the on-chip storage element to call and execute the method executed by the terminal device in the method embodiments shown in FIGS. 4 to 23 above.
  • the unit of the terminal device that implements the steps in the methods shown in Figures 4 to 23 above may be configured as one or more processing elements, which are arranged on the modem subsystem, here
  • the processing element may be an integrated circuit, for example: one or more ASICs, or, one or more DSPs, or, one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form a chip.
  • the terminal equipment that implements the various steps in the methods shown in Figures 4 to 23 above can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • the SOC chip is used to implement the above Figure 4 To the method shown in Figure 23.
  • the chip can integrate at least one processing element and a storage element, and the processing element can call the stored program of the storage element to implement the method executed by the above terminal device; or, the chip can integrate at least one integrated circuit to implement the above figure. 4 to the method executed by the terminal device in the process shown in FIG. 23; or, it can be combined with the above implementations.
  • the functions of some units are implemented in the form of calling programs by processing elements, and the functions of some units are implemented in the form of integrated circuits.
  • the above apparatus for terminal equipment may include at least one processing element and an interface circuit, wherein at least one processing element is used to execute any of the methods performed by the terminal equipment provided in the method embodiments shown in FIGS. 4 to 23 above.
  • the processing element can execute part or all of the steps executed by the terminal device in the first way: calling the program stored in the storage element; or in the second way: combining instructions through the integrated logic circuit of the hardware in the processor element Part or all of the steps executed by the terminal device are executed in a manner; of course, part or all of the steps executed by the terminal device may also be executed in combination with the first manner and the second manner.
  • the processing element here is the same as the above description, and it may be a general-purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above method, such as: one or more ASICs, or, one or more micro-processing DSP, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.
  • the storage element can be a memory or a collective term for multiple storage elements.
  • an embodiment of the present application also provides a device, including a unit for implementing each step in the process described in FIG. 8, FIG. 17, FIG. 19, or FIG. 21.
  • the device includes at least one processor and an interface circuit, and the at least one processor is used to communicate with other devices through the interface, and perform the steps in the process shown in FIG. 8, FIG. 17, FIG. 19, or FIG. 21. method.
  • the device includes a processor for calling a program stored in the memory to execute the method of each step in the flow shown in FIG. 8, FIG. 17, FIG. 19, or FIG. 21.
  • the embodiment of the present application also provides a computer-readable storage medium including a program. When the program is run by a processor, the method of each step in the process shown in FIG. 8, FIG. 17, FIG. 19, or FIG. 21 is executed.
  • the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which may implement or Perform the methods, steps, and logical block diagrams disclosed in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), for example Random-access memory (random-access memory, RAM).
  • the memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this.
  • the memory in the embodiments of the present application may also be a circuit or any other device capable of realizing a storage function for storing program instructions and/or data.
  • the methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented by software, it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, network equipment, user equipment, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD for short)), or a semiconductor medium (for example, SSD).
  • At least one refers to one or more, and “multiple” refers to two or more.
  • And/or describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • At least one of a, b, or c can mean: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or multiple.

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Abstract

一种通信方法及装置，用于解决数据传输效率低下的问题，该方法包括：终端设备在接收到来自接入网设备的寻呼消息时，根据预配置和/或寻呼消息，确定用于传输寻呼响应的第一PUSCH资源，且在第一PUSCH资源上，向接入网设备发送寻呼响应，所述寻呼响应中携带有终端设备的身份验证信息。接入网设备或核心网对终端设备进行身份验证成功后，即可进行下行数据传输。相对于，必须先建立或恢复RRC连接，才可进行下行数据传输的方式，可提高数据传输效率。

Description

一种通信方法及装置 技术领域
本申请实施例涉及通信技术领域，尤其涉及一种通信方法及装置。
背景技术
在第五代移动通信系统中，终端设备存在三种无线资源控制(radio resource control，RRC)状态，分别为RRC连接(RRC-connected)态、RRC空闲(RRC-idle)态和去活动态(inactive state)。其中，只有RRC连接态的终端设备才能和网设备进行数据传输。对于RRC空闲态的终端设备，或去活动态的终端设备，只有在建立RRC连接，或恢复RRC连接后，才能和网络设备进行数据传输。
对于数据量较小的应用而言，采用这种方式，将使得大部分资源用于建立或恢复RRC连接，数据传输效率低下。
发明内容
本申请实施例提供一种通信方法及装置，以提高数据传输效率。
第一方面，提供一种通信方法，该方法包括：终端设备在接收到来自终端设备的寻呼消息时，根据预配置和/或寻呼消息，确定用于传输寻呼响应的第一PUSCH资源，且在第一PUSCH资源上，向接入网设备发送寻呼响应。
通过上述方法，终端设备根据预配置和/或寻呼消息，确定第一PUSCH资源。相对于，接入网设备在发送寻呼消息之后，再向终端设备发送第一PUSCH资源的指示信息，可尽快传输寻呼响应。同时，所述寻呼响应中携带有终端设备的身份验证信息，进而可尽快对终端设备进行身份验证，降低下行数据的传输时延。
在一种可能的设计中，上述第一PUSCH资源是预配置的，可采用以下方式实现预配置第一PUSCH资源，具体的：终端设备接收来自接入网设备的第一配置信息，第一配置信息用于配置第一PUSCH资源；终端设备根据第一配置信息，确定第一PUSCH资源。
通过上述方法，所述第一配置信息可以为广播消息，且当第一配置信息为广播消息时，第一PUSCH资源对于所有终端设备是共享的。当终端设备更换小区时，第一PUSCH资源仍然可用，无需频繁为终端设备配置第一PUSCH资源。
在一种可能的设计中，第一PUSCH资源是根据寻呼消息确定的，终端设备可根据寻呼消息中携带的第一PUSCH资源的配置信息，确定第一PUSCH资源。
通过上述方法，由于寻呼消息是现有的随机接入流程即存在的信令，因此无需额外的信令开销，即可通知终端设备利用第一PUSCH资源传输寻呼响应，减少信令开销。
在一种可能的设计中，第一PUSCH资源是根据预配置和寻呼消息确定的。比如，终端设备接收来自接入网设备的第二配置信息，第二配置信息用于配置至少1个PUSCH资源；终端设备根据寻呼消息，确定第一PUSCH资源。
通过上述方法，寻呼消息可仅携带部分第一PUSCH资源的配置信息，或者完全不携带第一PUSCH资源的配置信息。相对于在寻呼消息中携带第一PUSCH资源的全部配置信息，可减少寻呼消息的开销。
在一种可能的设计中，至少1个PUSCH资源中每个PUSCH资源对应一个索引，寻呼消息中携带有第一索引，终端设备根据寻呼消息，确定第一PUSCH资源，包括：终端设备根据第一索引，在至少一个PUSCH资源中，选择第一PUSCH资源，第一PUSCH资源对应于第一索引。
在一种可能的设计中，至少1个PUSCH资源中每个PUSCH资源对应一终端设备标识，寻呼消息中携带有被寻呼终端设备的标识，终端设备根据寻呼消息，确定第一PUSCH资源，包括：终端设备根据寻呼消息中携带的被寻呼终端设备的标识，在至少一个PUSCH资源中，选择第一PUSCH资源，第一PUSCH资源对应于被寻呼终端设备的标识。
通过上述方法，由于在现有随机接入流程中，寻呼消息中即携带被寻呼终端设备的标识，因此，采用上述方法完全没有增加寻呼消息的开销。
在一种可能的设计中至少1个PUSCH资源中每个PUSCH对应一随机接入前导码标识，寻呼消息中携带有第一随机接入前导码标识，终端设备根据寻呼消息，确定第一PUSCH资源，包括：终端设备根据第一随机接入前导码标识，在至少一个PUSCH资源中，选择第一PUSCH资源，第一PUSCH资源所对应于第一随机接入前导码标识。
在一种可能的设计中，第一PUSCH资源是根据预配置和寻呼消息确定的，还包括：终端设备接收来自接入网设备的第三配置信息，第三配置信息用于配置第一PUSCH资源中时频域资源的部分；寻呼消息中携带有第一PUSCH资源中时频域资源的剩余部分，终端设备根据寻呼消息，确定第一PUSCH资源中时频域资源的剩余部分；终端设备根据第一PUSCH资源中时频域资源的部分和第一PUSCH资源中时频域资源的剩余部分，确定第一PUSCH资源。
通过上述方法，仅在寻呼消息中携带第一PUSCH资源时频域资源的部分，相对于在寻呼消息中携带第一PUSCH资源的全部的方式，可降低寻呼消息的开销。
在一种可能的设计中，第一PUSCH资源是预配置的，可采用以下方式预配置第一PUSCH资源，具体的终端设备接收来自接入网设备的第四配置信息，第四配置信息用于配置随机接入前导码、随机接入前导码的时频域资源和第一PUSCH资源；终端设备根据第四配置信息，确定第一PUSCH资源。
通过上述方法，第四配置信息还可称为随机接入配置，或2步RACH配置，或消息A配置。由于上述配置在现有随机接入的配置。因此，在本申请实施例可借鉴现有的随机接入配置中的PUSCH资源，用于传输寻呼响应，减少信令开销。
在一种可能的设计中，第一PUSCH资源是根据寻呼消息确定的，寻呼消息中携带有第五配置信息，第五配置信息用于配置随机接入前导码、随机接入前导码的时频域资源和第一PUSCH资源，终端设备根据寻呼消息中携带的第五配置信息，确定第一PUSCH资源。
在一种可能的设计中，第一PUSCH资源是根据预配置和寻呼消息确定的，可通过以下方式实现：终端设备接收来自接入网设备的第六配置信息，第六配置信息用于配置随机接入前导码、随机接入前导码的时频域资源和第一PUSCH资源中时频域资源中的部分；寻呼消息中携带有第一PUSCH资源中时频域资源的剩余部分，终端设备根据寻呼消息，确定第一PUSCH资源中时频资源的剩余部分；终端设备根据第一PUSCH资源中时频域资源中的部分和第一PUSCH资源中时频域资源的剩余部分，确定第一PUSCH资源。
在一种可能的设计中，第一PUSCH资源是根据预配置和寻呼消息确定的，可通过以下方式实现：终端设备接收来自接入网设备的第七配置信息，第七配置信息用于配置 至少一个随机接入配置，每个随机接入配置包括：随机接入前导码、随机接入前导码的时频域资源和PUSCH的时频域资源；终端设备根据寻呼消息，从至少一个随机接入配置中，确定第一随机接入配置，第一随机接入配置中包括第一PUSCH资源；终端设备根据第一随机接入配置，确定第一PUSCH资源。
在一种可能的设计中，至少一个随机接入配置中每个随机接入配置对应一索引，寻呼消息中携带有第一索引，终端设备根据寻呼消息，从至少一个随机接入配置中，确定第一随机接入配置，包括：终端设备根据第一索引，从至少一个随机接入配置中，选择第一随机接入配置，第一随机接入配置对应于第一索引。
在一种可能的设计中，至少一个随机接入配置中每个随机接入配置对应一终端设备标识，寻呼消息中携带有被寻呼终端设备的标识，终端设备根据寻呼消息，从至少一个随机接入配置中，确定第一随机接入配置，包括：终端设备根据被寻呼终端设备的标识，从至少一个随机接入配置中，选择第一随机接入配置，第一随机接入配置对应于被寻呼终端设备的标识。
在一种可能的设计中，至少一个随机接入配置中每个随机接入配置对应一随机接入前导码标识，寻呼消息中携带有第一随机接入前导码标识，终端设备根据寻呼消息，从至少一个随机接入配置中，确定第一随机接入配置，包括：终端设备根据第一随机接入前导码标识，从至少一个随机接入配置中，选择第一随机接入配置，第一随机接入配置所对应于第一随机接入前导码标识。
在一种可能的设计中，终端设备利用随机接入前导码的时频域资源，向接入网设备发送随机接入前导码；或者，在定时提前量TA无效时，终端设备利用随机接入前导码的时频域资源，向接入网设备发送随机接入前导码。
通过上述方法，由于TA时间有效，可保持终端设备与网络设备的同步。而在本申请例中，只有在TA无效时，终端设备才会向接入网设备发送随机接入前导码。即在TA有效时，终端设备并不会向接入网设备发送随机接入前导码，可减少信令开销。
在一种可能的设计中，终端设备接收来自接入网设备的随机接入前导码的响应消息，随机接入前导码的响应消息中包括下行数据。
通过上述方法，在随机接入前导码的响应中携带下行数据的方式，可实现下行数据的早传，减少下行数据的时延。
在一种可能的设计中，寻呼消息中包括下行数据早传指示或随机接入前导码标识，终端设备利用第一PUSCH资源，向接入网设备发送寻呼响应，包括：终端设备根据下行数据早传指示或随机接入前导码标识，在第一PUSCH资源向接入网设备发送寻呼响应。
在一种可能的设计中，寻呼响应为非接入层NAS消息，终端设备的身份验证信息是根据终端设备的NAS安全密钥所生成的。
通过上述方法，接入网设备可对终端设备进行身份验证，避免将下行数据发送给冒用的终端设备。
在一种可能的设计中，寻呼响应为无线资源控制RRC消息，终端设备的身份验证信息是根据以下参数中一项或多项生成的：终端设备的接入层密钥、终端设备源小区的物理小区标识、终端设备目标小区的物理小区标识、源小区无线网络临时标识C-RNTI。
通过上述方法，核心网设备可对终端设备进行身份验证，避免将下行数据发送给冒用的终端设备。
第二方面，提供一种通信方法，包括：接入网设备向终端设备发送寻呼消息；接入网设备在第一物理上行共享信道PUSCH资源上，接收来自终端设备的寻呼响应；其中，第一PUSCH资源是根据预配置和/或寻呼消息确定的。
通过上述方法，接入网设备可根据预配置和/或寻呼消息向终端设备指示第一PUSCH资源。相对于，接入网设备在向终端设备发送寻呼消息之后，再向终端设备发送第一PUSCH资源的配置信息，可减少信令开销。同时，由于寻呼消息中携带有终端设备的身份验证信息，可尽快对终端设备进行身份验证，进而更快的进行下行数据传输，降低下行数据传输时延。
在一种可能的设计中，第一PUSCH资源是预配置的，接入网设备可通过以下方式预配置：接入网设备向终端设备发送第一配置信息，第一配置信息用于配置第一PUSCH资源。
通过上述方法，第一配置信息可为广播消息，且当通过广播消息配置第一PUSCH资源时，第一PUSCH资源是所有终端设备共享的，无需为不同终端设备单独配置第一PUSCH资源，降低信令开销。
在一种可能的设计中，第一PUSCH资源是根据寻呼消息确定的，接入网设备可通过在寻呼消息中携带第一PUSCH资源配置信息的方式，将第一PUSCH资源指示给终端设备。
通过上述方法，由于寻呼消息是现有随机接入过程中的信令，因此，接入网设备侧无需额外的信令开销，即可将第一PUSCH资源指示给终端设备，降低了信令开销。
在一种可能的设计中，第一PUSCH资源是根据预配置和寻呼消息确定的，接入网设备可通过以下方式将第一PUSCH资源指示给终端设备：接入网设备向终端设备发送第二配置信息，第二配置信息用于配置至少1个PUSCH资源。
在一种可能的设计中，至少1个PUSCH资源中每个PUSCH资源对应一个索引，寻呼消息中携带有第一索引，第一索引对应于第一PUSCH资源。
在一种可能的设计中，至少1个PUSCH资源中每个PUSCH资源对应一终端设备标识，寻呼消息中携带有被寻呼终端设备的标识，被寻呼终端设备的标识对应于第一PUSCH资源。
在一种可能的设计中，至少1个PUSCH资源中每个PUSCH对应一随机接入前导码标识，寻呼消息中携带有第一随机接入前导码标识，第一随机接入前导码标识对应于第一PUSCH资源。
在一种可能的设计中，第一PUSCH资源是根据预配置和寻呼消息确定的，接入网设备可通过以下方式将第一PUSCH资源指示给终端设备：接入网设备向终端设备发送第三配置信息，第三配置信息用于配置第一PUSCH资源中时频域资源的部分；
其中，寻呼消息中携带有第一PUSCH资源中时频域资源的剩余部分，第一PUSCH资源包括第一PUSCH资源中时频域资源的部分和第一PUSCH资源中时频域资源的剩余的部分。
在一种可能的设计中，第一PUSCH资源是预配置的，接入网设备向终端设备发送第四配置信息，第四配置信息用于配置随机接入前导码、随机接入前导码的时频域资源和第一PUSCH资源。
在一种可能的设计中，第一PUSCH资源是根据寻呼消息确定的，寻呼消息中携带有第五配置信息，第五配置信息用于配置随机接入前导码、随机接入前导码的时频域资源和 第一PUSCH资源。
在一种可能的设计中，第一PUSCH资源是根据预配置和寻呼消息确定的，接入网设备向终端设力求发送第六配置信息，第六配置信息用于配置随机接入前导码、随机接入前导码的时频域资源和第一PUSCH资源中时频域资源的部分；
其中，寻呼消息中携带有第一PUSCH资源中时频域资源的剩余部分，第一PUSCH资源包括第一PUSCH资源中时频域资源的部分和第一PUSCH资源中时频域资源的剩余部分。
在一种可能的设计中，第一PUSCH资源是根据预配置和寻呼消息确定的，接入网设备向终端设备发送第七配置信息，第七配置信息用于配置至少一个随机接入配置，每个随机接入配置包括：随机接入前导码、随机接入前导码的时频域资源和PUSCH的时频域资源。
在一种可能的设计中，至少一个随机接入配置中每个随机接入配置对应一索引，寻呼消息中携带有第一索引，第一索引对应于第一随机接入配置，第一随机接入配置中包括第一PUSCH资源。
在一种可能的设计中，至少一个随机接入配置中每个随机接入配置对应一终端设备标识，寻呼消息中携带有被寻呼终端设备的标识，被寻呼终端设备的标识对应于第一随机接入配置，第一随机接入配置中包括第一PUSCH资源。
在一种可能的设计中，至少一个随机接入配置中每个随机接入配置对应于一随机接入前导码标识，寻呼消息中携带有第一随机接入前导码标识，第一随机接入前导码标识对应于第一随机接入配置，第一随机接入配置中包括第一PUSCH资源。
在一种可能的设计中，接入网设备利用随机接入前导码的时频域资源，接收来自终端设备的随机接入前导码。
在一种可能的设计中，接入网设备向终端设备发送随机接入前导码的响应消息，随机接入前导码的响应消息中包括下行数据。
通过上述方法，接入网设备可在随机接入前导码的响应消息中传输下行数据，可实现下行数据早传，降低传输时延。
在一种可能的设计中，寻呼消息中包括下行数据早传指示或随机接入前导码标识，接入网设备利用第一PUSCH资源，接入来自终端设备的寻呼响应，包括：
接入网设备根据下行数据早传指示或随机接入前导码标识，在第一PUSCH资源上接收来自终端设备的寻呼响应。
在一种可能的设计中，寻呼响应为非接入层NAS消息，终端设备的身份验证信息是根据终端设备的NAS安全密钥所生成的。
通过上述方法，核心网设备可对终端设备进行身份验证，避免将下行数据发送给冒用的终端设备，提高数据安全性。
在一种可能的设计中，寻呼响应为无线资源控制RRC消息，终端设备的身份验证信息是根据以下参数中一项或多项生成的：终端设备的接入层密钥、终端设备源小区的物理小区标识、终端设备目标小区的物理小区标识、源小区无线网络临时标识C-RNTI。
通过上述方法，接入网设备可对终端设备进行身份验证，避免将下行数据发送给冒用的终端设备，提高数据安全性。
第三方面，提供一种非授权信道的接入方法，包括：终端设备接收来自接入网设备的寻呼消息，寻呼消息中包括指示信息；终端设备根据指示信息，执行非授权信道的接入。
通过上述方法，终端设备可执行第一信道接入类型的非授权接入，也可执行第二信道接入类型的非授权接入。相对于终端设备仅可执行第一信道接入类型的非授权接入的方式相比，可提高终端设备非授权接入的灵活性。同时，由于第二信道接入类型的时延要小于第一信道接入类型，因此间接的也可提高终端设备的接入速度。
在一种可行的设计中，指示信息用于指示非授权信道的接入类型，终端设备根据指示信息，执行非授权信道的接入，包括：当指示信息用于指示第一信道接入类型时，终端设备按照第一信道接入类型，执行非授权信道的接入；或者，当指示信息用于指示第二信道接入类型时，终端设备按照第二信道接入类型，执行非授权信道的接入。
在一种可行的设计中，指示信息用于指示非授权信道的可占用时长，终端设备根据指示信息，执行非授权信道的接入，包括：当非授权信道的可占用时长大于或等于第一时长时，终端设备按照第二信道接入类型，执行非授权信道接入；或者，当非授权信道的可占用时长小于第一时长时，终端设备按照第一信道接入类型，执行非授权信道接入。
第四方面，提供一种非授权信道的接入方法，包括：接入网设备确定非授权信道的可占用时长；接入网设备根据非授权信道的可占用时长，确定指示信息；接入网设备向终端设备发送寻呼消息，寻呼消息中携带有指示信息。
通过上述方法，接入网设备可根据可占用时长的不同，指示终端设备执行不同类型的信道接入，降低终端设备的信道接入时长。
在一种可行的设计中，接入网设备根据非授权信道的可占用时长，确定指示信息，包括：当非授权信道的可占用时长大于或等于第二时长时，接入网设备确定指示信息为第二信道接入类型；或者，当非授权信道的可占用时长小于第二时长时，接入网设备确定指示信息为第一信道接入类型。
在一种可行的设计中，指示信息用于指示非授权信道的可占用时长。
第五方面，提供一种通信方法，包括：终端设备利用第一物理上行共享信道PUSCH资源，向接入网设备发送上行数据；终端设备根据PUSCH资源与同步信号块SSB的对应关系，确定第一PUSCH资源所对应的第一SSB；终端设备在第一SSB上，监听物理下行控制信道PDCCH。
在一种可行的设计中，还包括：终端设备接收来自接入网设备的配置信息，配置信息用于配置PUSCH资源和SSB的对应关系。
第六方面，提供一种通信方法，包括：接入网设备利用第一物理上行共享信道PUSCH资源，接收来自终端设备的上行数据；接入网设备根据PUSCH资源与同步信号块SSB的对应关系，确定第一PUSCH资源所对应的第一SSB；接入网设备在第一SSB上，发送物理下行控制信道PDCCH。
在一种可行的设计中，还包括：接入网设备向终端设备发送配置信息，配置信息用于配置PUSCH资源和SSB的对应关系。
第七方面，提供一种通信方法，包括：终端设备确定第一同步信号块SSB；终端设备利用第一物理上行共享信道PUSCH资源，向接入网设备发送上行数据和第一SSB的标识；
终端设备在第一SSB上，监听物理下行控制信道PDCCH。
在一种可行的设计中，终端设备接收来自接入网设备的指示信息，指示信息用于指示终端设备需要上报SSB的标识。
第八方面，提供一种通信方法，包括：接入网设备利用第一物理上行共享信道PUSCH， 接收来自终端设备的上行数据和第一同步信号块SSB的标识；接入网设备在第一SSB上，向终端设备发送物理下行控制信道PDCCH。
在一种可行的设计中，接入网设备向终端设备发送指示信息，指示信息用于指示终端设备需要上报SSB的标识。
第九方面，本申请实施例提供一种装置，包括用于执行以上第一方面至第八方面的任一种设计中所包括的各个步骤的单元或手段(means)。
第十方面，本申请实施例提供一种装置，包括至少一个处理器和存储器，至少一个处理器用于执行以上第一方面至第八方面的任一种设计中提供的方法。
第十一方面，本申请实施例提供一种装置，包括至少一个处理器和接口电路，至少一个处理器用于执行以上第一方面至第八方面的任一种设计中提供的方法。
第十二方面，本申请实施例提供一种程序，该程序在被处理器执行时用于执行以上第一方面至第八方面的任一种设计中提供的方法。
第十三方面，本申请实施例提供一种程序产品，例如计算机可读存储介质，当计算机读取并执行所述程序产品时，使得计算机执行上述第一方面至第八方面的任一种设计中提供的方法。
以上装置可以是一个芯片，处理器可以通过硬件来实现也可以通过软件来实现，当通过硬件实现时，该处理器可以是逻辑电路、集成电路等；当通过软件来实现时，该处理器可以是一个通用处理器，通过读取存储器中存储的软件代码来实现，该存储器可以集成在处理器中，可以位于该处理器之外，独立存在。
以上处理器为一个或多个，存储器为一个或多个。
存储器可以与处理器集成在一起，或者存储器与处理器分离设置。在具体实现过程中，存储器可以与处理器集成在同一块芯片上，也可以分别设置在不同的芯片上，本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
附图说明
图1为本申请实施例适用的通信系统的一示意图；
图2为本申请实施例适用的网络架构的一示意图；
图3为本申请实施例适用的网络架构的另一示意图；
图4为本申请实施例提供的下行数据传输的一示意图；
图5为本申请实施例提供的下行数据早传的一示意图；
图6为本申请实施例提供的下行数据早传的另一示意图；
图7为本申请实施例提供的下行数据早传的又一示意图；
图8为本申请实施例提供的通信方法的一示意图；
图9为本申请实施例提供的利用控制面承载早传下行数据的一示意图；
图10为本申请实施例提供的利用用户面承载早传下行数据的一示意图；
图11为本申请实施例提供的利用控制面承载早传下行数据的一示意图；
图12为本申请实施例提供的利用用户面承载早传下行数据的一示意图；
图13为本申请实施例提供的利用用户面承载早传下行数据的一示意图；
图14为本申请实施例提供的MAC子PDU的一示意图；
图15为本申请实施例提供的MAC子PDU的另一示意图；
图16a、图16b和图16c为本申请实施例提供的MAC子头格式的示意图；
图17为本申请实施例提供的非授权信道接入方法的一示意图；
图18为本申请实施例提供的非授权信道接入方法的另一示意图；
图19为本申请实施例提供的通信方法的一示意图；
图20为本申请实施例提供的通信方法的一示意图；
图21为本申请实施例提供的通信方法的一示意图；
图22为本申请实施例提供的通信方法的一示意图；
图23为本申请实施例提供的利用用户面承载早传下行数据的示意图；
图24为本申请实施例提供的装置的结构示意图；
图25为本申请实施例提供的网络设备的一结构示意图；
图26为本申请实施例提供的网络设备的另一结构示意图；
图27为本申请实施例提供的终端设备的一结构示意图。
具体实施方式
图1示出了本申请实施例适用的通信系统100之一，包括无线接入网(radio access network，RAN)设备110、核心网(core network，CN)设备120和终端设备130。
其中，终端设备130可以接入到无线网络，该无线网络包括RAN设备110和CN设备120。RAN设备110用于将终端设备130接入到无线网络，CN设备120用于对终端设备130进行管理并提供与外网通信的网关。
终端设备130，又称之为用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等，是一种向用户提供语音/数据连通性的设备，例如，具有无线连接功能的手持式设备、或车载设备等。目前，一些终端的举例为：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、或智慧家庭(smart home)中的无线终端等。
网络设备是无线网络中的设备，例如将终端设备接入到无线网络的无线接入网(radio access network，RAN)节点。目前，一些RAN节点的举例为：gNB、传输接收点(transmission reception point，TRP)、演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(base band unit，BBU)，或无线保真(wireless fidelity，Wifi)接入点(access point，AP)等。在一种网络结构中，网络设备可以包括集中单元(centralized unit，CU)节点、或分布单元(distributed unit，DU)节点、或包括CU节点和DU节点的RAN设备。
在图1所示的通信系统100中，RAN设备110和终端设备130可以通过空口资源进行数据传输，空口资源可以包括时域资源、频域资源或码域资源的至少一种。具体来说，RAN设备110和终端设备130进行数据传输时，RAN设备110可以通过控制信道、如物理下行 控制信道(physical downlink control channel，PDCCH)向终端设备130发送控制信息，从而为终端设备分配数据信道，如物理下行共享信道(physical downlink shared channel，PDSCH)或物理上行共享信道(physical uplink shared channel，PUSCH)的资源。比如，该控制信息可以指示数据信道所映射至的符号和/或子载波。RAN设备110和终端设备130在该分配的时频资源通过数据信道进行数据传输。其中，上述数据传输可以包括上行数据传输和/或下行数据传输。其中，上述下行数据传输(如PDSCH携带的数据)可以指RAN设备110向终端设备130发送数据，上行数据(如PUSCH携带的数据)可以指终端设备130向RAN设备110发送数据。数据可以是广义的数据，比如，可以是用户数据，也可以是系统信息，广播信息，或其他的信息等，不作限定。
图1示例性示出了2个RAN设备110、一个终端设备130和一个核心网设备120。可选的，该通信系统100可以包括除2个外，其它数量的RAN设备，并且在每个RAN的覆盖范围内可包括除1个外，其它数量的终端设备，本申请实施例对此不作限定。
图2示出了本申请实施例适用的一种网络设备架构，包括：CN设备和RAN设备。
其中，RAN设备包括基带装置和射频装置，基带装置可以由一个节点实现，也可以由多个节点实现。射频装置可以从基带装置拉远独立实现，也可以集成在基带装置中，或者部分拉远部分集成在基带装置中。例如，在LTE系统中，RAN包括基带装置和射频装置。射频装置可以相对基带装置拉远布置。例如，射频拉远单元(remote radio unit，RRU)相对于BBU拉远布置。
RAN设备和终端设备之间的通信遵循一定的协议层结构，例如，控制面协议层结构可以包括无线资源控制(radio resource control，RRC)层、分组数据汇聚层协议(packet data convergence protocol，PDCP)层、无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理层等协议层的功能；用户面协议层结构可以包括PDCP层、RLC层、MAC层和物理层等协议层的功能；在一种可能的实现中，PDCP层之上还可以包括业务数据适配(service data adaptation protocol，SDAP)层。
RAN设备可以由一个节点实现RRC、SDAP、PDCP、RLC和MAC等协议层的功能，或者可以由多个节点实现这些协议层的功能。例如，在一种演进结构中，RAN设备可以包括CU和DU，多个DU可以由一个CU集中控制。作为示例，CU和DU之间的接口可以称为F1-U接口。如图2所示，CU和DU可以根据无线网络的协议层划分，例如PDCP层及以上协议层的功能设置在CU，PDCP以下的协议层，例如RLC层和MAC层等的功能设置在DU。
这种协议层的划分仅仅是一种举例，还可以在其它协议层划分，例如在RLC层划分，将RLC层及以上协议层的功能设置在CU，RLC层以下协议层的功能设置在DU；或者，在某个协议层中划分，例如将RLC层的部分功能和RLC层以上的协议层的功能设置在CU，将RLC层的剩余功能和RLC层以下的协议层的功能设置在DU。此外，也可以按其它方式划分，例如按时延划分，将处理时间需要满足时延要求的功能设置在DU，不需要满足该时延要求的功能设置在CU。
此外，射频装置可以拉远，不放在DU中，也可以集成在DU中，或者部分拉远部分集成在DU中，在此不作任何限制。
图3示出了本申请实施例适用的另一种网络架构。相对于图2所示的架构，还可以将CU的控制面(control panel，CP)和用户面(user panel，UP)分离，分成不同实体来实现，分别为控制面CU实体(CU-CP实体)和用户面CU实体(CU-UP实体)。
在图3所示的网络架构中，CU产生的信令可以通过DU发送给终端设备，或者，终端设备产生的信令可以通过DU发送给CU。DU可以不对该信令进行解析而直接通过协议层封装而透传给终端设备或CU。在以下实施例中，如果涉及这种信令在DCU和终端设备之间的传输，此时，DU对信令的发送或接收包括这种场景。例如，RRC或PDCP层的信令最终会处理为PHY层的信令发送给终端，或者，由接收到的PHY层的信令转变而来。在这种架构下，该RRC或PDCP层的信令，即也可以认为是由DU发送的，或者，由DU和射频发送的。
在以上实施例中，CU划分RAN侧的网络设备，此外，也可以将CU划分为CN侧的网络设备，在此不作限定。本申请以下实施例中的装置，根据其实现的功能，可以位于终端设备或网络设备，当采用以上CU-DU的架构时，网络设备可以为CU节点，或DU节点，或包括CU节点或DU节点的RAN设备。
基于图1所示的通信系统，以及，图2或图3所示的网络架构，本申请实施例提供一种场景，如下。需要说明的是，在以下实施例中，接入网设备与网络设备的使用不作特别区分，如无额外说明，以下实施例中的网络设备具体为接入网设备。
终端设备可存在三种无线资源控制(radio resource control，RRC)状态，分别为RRC连接(RRC-connected)态、RRC空闲(RRC-idle)态和去活动态(inactive state)。
其中，去活动态与空闲态一样，终端设备断开了RRC连接，不需要接收下行数据，从而达到与空闲态一样的省电效果。不同于空闲态的是：在去活动态下，接入网设备和核心网设备(例如，AMF和UPF等)之间的终端设备专用通道是保持的；终端设备和接入网设备是保存终端设备上下文的；终端设备收到接入网设备的寻呼后，终端设备发起RRC连接恢复过程，基于保存的终端设备上下文进入到连接态。
目前，只有RRC连接态和终端设备才能和网络设备进行数据传输。对于RRC空闲态的终端设备，或者去活动态的终端设备，只有在建立RRC连接，或恢复RRC连接后，才能和网络设备进行数据传输。
如图4所示，提供一种下行数据传输方法的流程，该方法的原理为：针对RRC空闲态的终端设备或去活动态的终端设备，首先建立或恢复RRC连接，在建立或恢复RRC连接后，再与网络设进行数据传输。该流程具体为：
S500：核心网设备向接入网设备发送下行数据。
S501：接入网设备向终端设备发送寻呼消息，所述寻呼消息中包括终端设备的标识。
S502：被寻呼的终端设备发现寻呼消息中携带自己的终端设备标识后，向接入网设备发送随机接入前导码(preamble)。具体的，终端设备可从广播消息中获取并随机选择一个随机接入前导码preamble。
S503：接入网设备向终端设备发送随机接入响应，所述随机接入响应中携带有PUSCH资源，所述PUSCH资源具体为终端设备发送寻呼响应的PUSCH资源。
S504：终端设备向接入网设备发送寻呼响应，所述寻呼响应中包括终端设备的标识。
接入网设备接收到寻呼响应后，获知该终端设备的标识，进而执行S505，以通知终端 设备恢复RRC连接。
S505：接入网设备向终端设备发送RRC连接恢复消息。
S506：终端设备在接收到RRC连接恢复消息后，终端设备进行RRC连接态，向接入网设备发送RRC连接恢复完成消息。
需要说明的是，上述S505和S506的描述是针对被寻呼终端设备为去活动态的。如果被寻呼终端设备为空闲态，上述S505可替代为：接入网设备向终端设备发送RRC连接建立请求消息。上述S506可替代为：终端设备向接入网设备发送RRC连接建立完成消息。
S507：接入网设备收到RRC连接恢复完成消息后，向终端设备发送下行数据。
可选的，针对去活动态的终端设备，接入网设备可还向终端设备发送RRC连接释放消息，以通知终端设备保持在去活动态。
通过上述图的描述可以看出，针对空闲态终端设备和去活动态终端设备，在经过上述S500至S506的过程，才能建立或恢复RRC连接，之后，在S507中才可传输下行数据。对于数据量较小的应用而言，采用上述方法，将使得大部分资源用于建立或恢复RRC连接，数据传输效率低下。
基于上述，提供一种下行数据早传的方案，所述下行数据早传是指在建立或恢复RRC连接之前，或者指在终端设备收到RRC连接建立响应或RRC连接恢复响应前，接入网设备向终端设备发送下行数据。采用下行数据早传，可提高数据传输效率。在本申请实施例中，提供以下两种解决方案，分别为方案1和方案2。其中，方案1为利用控制面的信令承载中的非接入层(non-access stratum，NAS)消息来携带下行数据包。方案2为利用用户面的数据承载来发送下行数据。
如图5所示，提供一种下行数据早传方法的流程，该方法可应用于上述方案1。在该流程中以接入网设备为基站，核心网设备包括移动性管理实体(mobility management entity，MME)或移动性管理功能(access and mobility management function，AMF)为例进行说明。在该流程中，是以空闲态终端设备的下行数据早传为例进行说明的。该流程包括：
S601：AMF/MME接收空闲态终端设备的下行数据。可选的，所述下行数据中可包括下行数据早传指示。
S602：AMF/MME缓存下行数据。
S603：AMF/MME向基站发送寻呼消息，所述寻呼消息中包括下行数据早传指示和被寻呼终端设备的临时移动用户标识(Serving-Temporary Mobile Subscriber Identity，S-TMSI)。
S604：基站接收到所述寻呼消息后，为终端设备分配专用随机接入前导码Preamble，且记录Preamble ID与S-TMSI的对应关系。
S605：基站向终端设备发送寻呼消息，所述寻呼消息中包括下行数据早传指示、被寻呼终端设备的S-TMSI和专用Preamble ID。
S606：被寻呼终端设备接收到所述寻呼消息后，从寻呼消息中获取专用Preamble，且向基站发送专用Preamble。
S607：基站在接收到所述专用Preamble后，从上述建立的对应关系中，查找专用Preamble所对应的S-TMSI，且向AMF/MME发送所述S-TMSI。
S608：AMF/MME将下行数据放在NAS消息中，向基站发送该NAS消息。
S609：基站收到该NAS消息后，向终端设备发送该NAS消息。
S610：若终端设备正确接收到该下行数据，则生成且向基站发送NAS消息，所述NAS消息中携带S-MTSI。
S611：基站发送NAS消息至AMF/MME。
S612：AMF/MME对该NAS消息进行身份验证，且验证通过，则认为上述下行数据被发送到了被寻呼的终端设备。
通过以上过程，实现了下行数据早传，提高了数据传输效率，但是以上过程中，寻呼消息是明文传输的，其中的专用Preamble也是明文的，非寻呼的其他终端设备也可接收到。若其他终端设备冒用被寻呼的终端设备发送该专用preamble，基站认为上述Preamble是被寻呼的终端设备发送的，并发送这个Preamble对应的S-TMSI给MME/AMF。MME/AMF把收到S-TMSI作为寻呼终端设备的响应，即在没有对终端设备的身份进行验证的情况下，即在上述S608中将下行数据发送给终端设备，可能会导致将下行数据发送给错误的终端设备。
如图6所示，提供一种下行数据早传方法的流程，该方法可对应于上述方案2，在该流程中以接入网设备为基站，核心网设备包括移动性管理实体(mobility management entity，MME)、服务网关(serving gate way，S-GW)、PDN网关(PDN gateway，P-GW)为例进行说明。在该流程中，是以空闲态终端设备的下行数据早传为例进行说明的。该流程包括：
S700：P-GW收到空闲态终端设备的下行数据。
S701：P-GW通过终端设备专用链路，将空闲态终端设备的下行数据发送给S-GW。
S702a：S-GW通过终端设备的专用链路，将空闲态终端设备的下行数据通知发送到MME，所述下行数据通知中包括下行数据早传指示和下行数据。
S702b：MME向S-GW发送下行数据通知确认响应。
S703：MME向基站发送寻呼消息，所述寻呼消息中携带有S-TMSI和下行数据早传指示。
S704：基站确定一个专用preamble，向终端设备发送寻呼消息，所述寻呼消息中携带S-TMSI和上述专用preamble的ID，并记录该preamble和S-TMSI的对应关系。
S705：终端设备接收来自基站的寻呼消息。
S706：和S-TMSI匹配的终端设备向基站发送专用preamble。
S707：基站收到preamble后，从记录中找到这个preamble对应的S-TMSI，发送终端设备的上下文恢复请求到MME。所述上下文恢复请求可指示终端设备挂起的RRC连接已经被恢复或者终端设备要接入进行数据早传。
可选的，S708：MME向S-GW发送修改承载请求，所述修改承载请求中包括基站的隧道地址信息；S-GW向MEE发送修改承载响应，所述修改承载响应中包括SGW的地址信息。
S709：MME向基站发送上下文恢复响应。
经过上述过程，已经完成恢复基站和SGW间的专用通道。S-GW可通过上述建立的专用通道发送下行数据到基站。
S7010：基站向终端设备发送随机接入响应消息，所述随机接入响应中携带有下行数据。
通过以上过程，实现了下行数据早传，提高了数据传输效率，但是以上过程中，寻呼 消息中的专用preamble ID是明文的，除非寻呼终端设备外，其他终端设备也可接收到。若其他终端设备冒用被寻呼的终端设备发送该专用preamble，基站认为是被寻呼的终端设备发送的preamble，并通知MME恢复基站和SGW间的专用通道。在没有对终端设备的身份信息S-TMSI进行安全验证的情况下，就恢复这个专用通道进行下行数传。因此，可能导致发送数据给错误的终端设备。
通过上述图5和图6的方案描述可知，在上述方案中，基站并没有对终端设备的身份进行验证，即将下行数据传输给终端设备，可能存在被寻呼终端设备被冒用，从而将下行数据传输给错误终端设备的情况。
基于上述，本申请实施例还提供一种下行数据早传的方法，该方法的原理为：在对终端设备进行身份验证后，再向终端设备发送下行数据，从而可解决被寻呼终端设备被冒用，将下行数据传输给错误终端设备的问题。
如图7所示提供上述下行数据早传方法的流程，在该流程中，以接入网设备为基站为例进行说明。同时，在图7所示的流程中，是以向去活动态终端设备早传下行数据为例进行说明的。如图8所示，该流程包括：
S800：基站接收去活动态终端设备的下行数据。
S801：基站向终端设备发送寻呼消息，寻呼消息中携带下行数据早传指示和终端设备的标识。比如，终端设备的标识可具体为去活动态无线网络临时标识(inactive radio network tempory identity，I-RNTI)。
S802：被寻呼的终端设备发现寻呼消息中携带自己的终端标识。
可选的，终端设备从广播消息获取并选择一个随机接入preamble，发送preamble请求。
S803：基站向终端设备发送的随机接入响应，该随机接入响应可以包含PUSCH资源，还可以包括定时调整TA命令等。
S804：终端设备发送寻呼响应，所述寻呼响应中包含终端设备的身份验证信息和I-RNTI等。该寻呼响应可以为RRC消息，且通过随机接入响应中携带的PUSCH资源发送。
S805：基站对终端设备进行身份验证，且在验证终端设备的身份成功后，执行下述S806。
S806：基站向终端设备发送下行数据。可选的，基站在发下行数据的同时，还可向终端设备发送RRC连接释放消息，以通知终端设备保持在INACTIVE态。
在以上方案中，实现了对终端设备身份验证之后，才进行下行数据传输，解决了数据传输安全的问题，但是通过上述描述可知，终端设备在收到寻呼消息后，发送4步随机接入过程(具体为上述S802、S803、S804和S806)，之后，才能进行下行数据传输，下行数据的时延较大，效率有待进一步提升。
基于上述，本申请实施例提供一种通信方法及装置，该方法的原理为：为终端设备预配置用于发送寻呼响应的PUSCH资源，和/或，通过寻呼消息配置用于发送寻呼响应的PUSCH资源。如此，接入网设备可以更早的向终端设备发送寻呼响应，更早的进行身份验证，从而尽快进行下行数据传输，降低下行数据的时延，并解决数据传输的安全问题。
参见图8所示，提供一种通信方法的流程，该流程中的接入网设备可为上述图1中的RAN设备110。所述接入网设备可采用上述图2或图3所示的网络架构。终端设备可为上述图1中的终端设备130。该流程包括：
S901.接入网设备向终端设备发送寻呼消息。相应的，终端设备接收来自接入网设备的寻呼消息。所述寻呼消息中包括被寻呼终端设备的标识、随机接入前导码或下行数据早传指示中的至少一个。当寻呼消息携带被寻呼终端的标识，被寻呼的UE从预配置的PUSCH资源确定第一PUSCH资源。当寻呼消息携带寻呼终端设备的标识和随机接入前导码标识，被寻呼的UE根据随机接入前导码标识确定所述随机接入前导码标识对应的第一PUSCH资源。当呼消息携带寻呼终端设备的标识和下行数据早传指示，被寻呼的UE优选从预配置的PUSCH资源确定第一PUSCH资源。S902.终端设备利用第一PUSCH资源，向接入网设备发送寻呼响应。相应的，接入网设备利用第一PUSCH资源，接收来自接入网设备的寻呼响应，所述寻呼响应中携带有终端设备的标识和身份验证信息，所述终端设备的标识和身份验证信息用于所述终端设备的身份验证。可选的，上述S902还可描述为：终端设备利用下行数据早传指示或随机接入前导码，在第一PUSCH资源上向接入网设备发送寻呼响应。此时，所述随机接入前导码可为专用随机接入前导码，所述专用随机接入前导码可指示下行数据早传。
可选的，接入网设备在接收到所述寻呼响应后，可对终端设备的身份进行验证。且对终端设备的身份验证成功后，向终端设备发送下行数据。比如，验证的过程可包括：接入网设备可根据终端设备的标识，获取用于身份验证的参数，且根据上述参数，生成身份验证信息。且接入网设备将自己生成的身份验证信息，与上述S902中携带的身份验证信息进行比较，若两者相匹配，则认为对终端设备的身份验证成功，否则认为终端设备的身份验证不成功。或者，接入网设备在接收到所述寻呼响应后，可将所述寻呼响应发送至核心网设备，由核心网设备对终端设备进行身份验证，核心网设备身份验证的过程，与接入网设备身份验证的过程相似，在此不再赘述。
在本申请实施例中，上述S902中用于发送寻呼响应的第一PUSCH资源可以是预配置的，或者，可以是根据上述S901中的寻呼消息确定的，或者，可以是根据预配置和上述S901中的寻呼消息确定的。在以下，将详细论述终端设备如何确定第一PUSCH。具体的，可为两种方案进行论述，在第一种方案中，网络设备可单独为终端设备配置第一PUSCH资源，或者可描述为终端设备单独确定第一PUSCH资源。在第二方案中，网络设备除配置第一PUSCH资源外，还可为终端设备配置随机接入前导码Preamble、随机接入前导码的时频域资源，即网络设备同时为终端设备配置随机接入前导码、随机接入前导码的时频域资源，以及第一PUSCH资源，所述第二种方案还可称为2步随机接入(random access channel，RACH)配置。或者，可描述为终端设备同时确定随机接入前导码、随机接入前导码的时频域资源和第一PUSCH等。
其中，第一种方案的实现包括但不限于以下几中方式：
在一种可行的实施方式中，接入网设备可向终端设备发送第一配置信息，所述第一配置信息用于配置第一PUSCH资源。相应的，终端设备接收来自接入网设备的第一配置信息，且根据第一配置信息，确定第一PUSCH资源。其中，第一PUSCH资源的配置信息可以包括PUSCH的时域资源、频域资源、解调参考信号(demodulation reference signal，DMRS)中的至少一个。比如，第一PUSCH资源的配置信息包括PUSCH的时域资源、频域资源，DMRS是协议约定的或UE预设的。比如，第一PUSCH资源的配置信息包括PUSCH的频域资源，DMRS和时域资源是协议约定的或UE预设的。比如，第一PUSCH资源的配置信息包括PUSCH的时域资源，DMRS和频域资源是协议约定的或UE预设的。其中，上 述第一配置信息可以是广播消息、专用消息(例如，RRC重配消息，或RRC释放消息等)或物理层信令(例如，PDCCH命令、PDCCH调度信令等)等。当第一配置信息为广播消息时，即采用广播消息的方式为终端设备预配置第一PUSCH资源。多个终端设备共享第一PUSCH资源，不同终端设备之间可能存在冲突的问题。但这种方式简单易行，且终端设备更换小区后，不用进行第一PUSCH资源的再分配。
在另一种可行的实施方式中，上述S901中的寻呼消息中可携带有第一PUSCH资源的配置信息。终端设备根据上述S901中的寻呼消息，即可确定第一PUSCH资源。采用这种方式，UE可通过寻呼消息直接获取到第一PUSC换资源，避免UE请求网络分配PUSCH资源的过程，节省时延。
在又一种可行的实施方式中，接入网设备可向终端设备发送第二配置信息，所述第二配置信息用于配置至少一个PUSCH资源。相应的，终端设备可接收来自接入网设备的第二配置信息，终端设备根据第二配置信息，可确定至少一个PUSCH资源。进一步，终端设备根据寻呼消息，可确定至少一个PUSCH资源。关于第二配置信息可以为广播消息、专用消息或物理层信令等，不作限定。
示例的，如表1所示，在上述第二配置信息所配置的至少一个PUSCH资源中，每个PUSCH资源对应一个索引。上述S901中的寻呼消息可携带第一PUSCH资源的索引，终端设备根据寻呼消息中携带的PUSCH资源的索引，可确定第一PUSCH资源。比如，第一PUSCH资源所对应的索引为第一索引，那么上述S901中可携带第一索引，终端设备根据上述第一索引，可在第二配置信息所配置的至少一个PUSCH资源中，确定第一PUSCH资源。
表1
索引 第二配置信息所配置的PUSCH资源列表
索引1 第一PUSCH资源
索引2 第二PUSCH资源
索引3 第三PUSCH资源
或者，示例的，如表2所示，在上述第二配置信息所配置的至少一个PUSCH资源中，每个PUSCH资源对应一个终端设备的标识。上述S901中的寻呼消息中携带被寻呼终端设备的标识，终端设备根据被寻呼终端设备的标识，可确定第一PUSCH资源。比如，被寻呼终端设备的标识称为第一终端设备的标识，第一终端设备的标识与第一PUSCH资源存在对应关系，那么终端设备根据寻呼消息中携带的第一终端设备的标识，可确定第一PUSCH资源。由于寻呼消息中原来即要携带终端设备标识，因此，在该种方式中，寻呼消息没有额外开销。
表2
终端设备标识 第二配置信息所配置的PUSCH资源列表
第一终端设备标识 第一PUSCH资源
第二终端设备标识 第二PUSCH资源
第三终端设备标识 第三PUSCH资源
或者，示例的，如表3所示，在上述第二配置信息中所配置的至少一个PUSCH资源中，每个PUSCH资源对应一随机接入前导码标识。上述S901中的寻呼消息中携带有一个随机接入前导码标识。终端设备根据所述寻呼消息中携带的随机接入前导码标识，可确定 所述第一PUSCH资源。比如，上述S901中的寻呼消息中携带有下述表3中的第一随机接入前导码，那么终端设备根据下述表3所示的随机接入前导码与PUSCH资源的对应关系，确定第一PUSCH资源。之后利用第一PUSCH资源执行上述S902的步骤。由于寻呼消息中原来即要携带随机接入前导码标识，因此，在该种方式，寻呼消息中没有额外开销。
表3
Figure PCTCN2019116821-appb-000001
或者，上述S901中的寻呼消息中可携带多个被寻呼终端设备的标识。每个终端设备可根据自己在寻呼消息中的顺序，确定自己所对应的PUSCH资源。例如，如表4所示，通过上述第二配置信息配置3个PUSCH资源，分别为PUSCH资源1、PUSCH资源2和PUSCH资源3。寻呼消息中携带三个终端设备的标识，即当前寻呼消息用于寻呼3个终端设备，寻呼消息用于承载3个终端设备的标识位置，按照时域先后顺序，分别为位置1、位置2和位置3。当当前终端设备的标识在上述S901中的寻呼消息中占据位置1时，可确定当前终端设备在上述S902中用于发送寻呼响应的第一PUSCH资源为PUSCH资源1，而当当前终端设备的标识在上述S901中的寻呼消息中占据位置2时，可确定当前终端设备在上述S902中用于发送寻呼响应的第一PUSCH资源为PUSCH资源2。同理，当当前终端设备的标识在上述S901中的寻呼消息中占据位置3时，可确定当前终端设备在上述S902中用于发送寻呼响应的第一PUSCH资源为PUSCH资源3。由于寻呼消息中原本即要携带被寻呼终端设备的标识，因此，寻呼消息没有额外开销。
表4
第二配置信息所配置的PUSCH资源列表
PUSCH资源1
PUSCH资源2
PUSCH资源3
或者，终端设备可根据接收寻呼消息的先后顺序，确定用于发送每个寻呼响应的PUSCH资源。仍沿用上述表3的举例，通过第二配置信息，网络设备为终端设备配置3个PUSCH资源，分别为PUSCH资源1、PUSCH资源2和PUSCH资源3。当终端设备第一次接收到寻呼消息时，则可用PUSCH资源1发送上述S902中的寻呼响应，即上述PUSCH资源1即为上述S902中的第一PUSCH资源。而在终端设备第二次接收到寻呼消息时，可用PUSCH资源2发送上述S902中的寻呼响应，即上述PUSCH资源2即为上述S902中的第一PUSCH资源。同理，当终端设备第三次接收到寻呼消息时，可用PUSCH资源3发送上述S902中的寻呼响应，即上述PUSCH资源3为上述S902中的第一PUSCH资源。当配置的PUSCH资源按序使用完毕之后，重新开始按序使用，例如，当终端设备第五次接收到寻呼消息时，则再用PUSCH资源1发送上述S902中的寻呼响应，依次推类。在该 方式中，寻呼消息中没有任何PUSCH资源的指示信息，寻呼消息没有额外开销。
或者，接入网设备可向终端设备发送第三配置信息，所述第三配置信息用于配置第一PUSCH资源时频域资源的部分。相应的，终端设备可接收来自接入网设备的第三配置信息，终端设备根据第三配置信息，确定第一PUSCH资源时频资源中的部分。而上述S901中的寻呼消息中携带有第一PUSCH资源中时频域资源的剩余部分，终端设备根据上述S901中的寻呼消息，可确定第一PUSCH资源中时频域资源的剩余部分。相对于在寻呼消息中携带第一PUSCH资源时频域资源的全部的方式，可降低寻呼消息的开销。比如，第三配置信息指示了时域资源信息。时域资源信息可以是周期和起始位置。寻呼消息携带频域资源信息。比如，第三配置信息指示了频域资源信息，寻呼消息携带时域资源信息。其中，在上述方案1中，终端设备还可利用随机接入前导码的时频域资源，向接入网设备发送随机接入前导码。或者，终端设备首先判断时间提前量(timing advance，TA)是否有效，如果有效，则不再向接入网设备发送随机接入前导码。如果TA失效，则再发送随机接入前导码。
可选的，终端设备根据所述寻呼消息中的随机接入前导码标识确定随机接入前导码。这个随机接入前导码标识是分配给该终端设备的。
针对上述方案1，可利用控制面中信令承载中的NAS消息来传输上述S902中的寻呼响应。此时，所述寻呼响应中所携带的身份验证信息是根据终端设备的NAS安全密钥所生成的。
如图9所示，提供一种通信方法的流程，该流程具体为上述方案1中利用NAS消息传输寻呼响应的一种示例。该流程以对空闲态终端设备进行下行数据早传为例进行说明。该流程中的终端设备可对应于上述图8中的终端设备，基站可对应于上述图8中的接入网设备，AMF为核心网设备中的网元,PUSCH资源可对应于上述图8中的第一PUSCH资源。该流程包括：
S1000.基站为终端设备分配PUSCH资源。
比如，基站可通过专用的RRC信令或PDCCH信令为终端设备分配PUSCH资源，所述RRC信令可以是RRC重配置消息，或者RRC连接释放消息，该PUSCH资源可以为专用于该终端设备的PUSCH资源。或者，所述PUSCH资源可以是多个终端设备共享的PUSCH资源，所述共享的PUSCH资源是指这个PUSCH资源可供多个终端设备共用的。或者，基站可通过广播消息为终端设备配置PUSCH资源，而终端设备可从广播消息中获取PUSCH资源。
S1001：AMF接收下行数据。
S1002：AMF向基站发送寻呼消息，所述寻呼消息中携带有下行数据早传指示和被寻呼终端设备的标识等，所述终端设备的标识可以是S-TMSI、或NG-5G-TMSI等。
S1003：基站向终端设备发送寻呼消息，所述寻呼消息中携带有preamble信息和被寻呼终端设备的标识。同样，S1003中的寻呼消息中包括的终端设备的标识可以是S-TMSI，或NG-5G-TMSI等。
S1004：终端设备向基站发送preamble。
可选的，若TA无效，则终端设备向基站发送preamble。若TA有效，则终端设备可不向基站发送preamble。
S1005：终端设备利用PUSCH资源，向基站发送NAS消息，所述NAS消息中携带有寻呼响应，所述寻呼响应中携带有终端设备的标识和终端设备的身份验证信息。
S1006：基站向AMF发送NAS消息，所述NAS消息中携带有寻呼响应，即携带有终端设备的标识和终端设备的身份验证信息。
S1007：AMF根据寻呼响应中携带有身份验证信息，对终端设备进行身份验证。且在对终端设备的身份验证成功后，执行S1008。
比如，AMF可根据终端设备的标识，获取终端设备的NAS安全密钥，根据NAS安全密钥对NAS消息进行完整性以及安全验证等。
S1008：AMF向基站发送NAS消息，所述NAS消息中携带有下行数据。
S1009：基站向终端设备发送NAS消息，所述NAS消息中携带有下行数据。
由上可见，在本申请实施例中，网络设备预先为终端设备配置PUSCH资源，相对于上述图7中的方案，在发送Preamble后，再为终端设备分配用于传输寻呼响应的PUSCH资源，可简化终端设备的随机接入过程，减少下行数据的传输时延。
在图9所示的流程中，虚线代表可选的步骤。且在图9所示的流程中，并不限定上述步骤S1000至S10010的先后执行顺序。
或者，针对上述方案1，可利用接入层RRC信令来传输上述S902中的寻呼响应。此时，所述寻呼响应中所携带的身份验证信息是根据以下参数中的一项或多项所生成的：
所述终端设备的接入层密钥、所述终端设备源小区的物理小区标识、所述终端设备目标小区的物理小区标识、源小区无线网络临时标识(cell radio network temporary identifier，C-RNTI)。其中，源小区的物理小区是指终端设备进入去活动态或空闲态时的小区，目标小区是指终端设备发送RRC连接恢复请求或RRC连接建立请求时的小区，源C-RNTI是终端设备进入去活动态或空闲态时的小区所分配的标识。
比如，采用所述终端设备的接入层密钥、所述终端设备源小区的物理小区标识、所述终端设备目标小区的物理小区标识、源小区无线网络临时标识(cell radio network temporary identifier，C-RNTI)生成的身份验证信息。
如图10所示，提供一种通信方法的流程，该流程具体为上述方案1中利用接入层RRC信令承载传输寻呼响应的一种示例。该流程以对去活动态终端设备进行下行数据早传为例进行说明。该流程中的终端设备可对于上述图8中的终端设备，基站可对应于上述图8中的接入网设备，PUSCH资源可对应于上述图8中的第一PUSCH资源。该流程包括：
S1100：基站为终端设备分配PUSCH资源。可具体参见上述图10中S1000中的记载，在此不再说明。
S1101：基站接收下行数据，且向终端设备发送寻呼消息，所述寻呼消息中包括Preamble标识和终端设备的标识，所述终端设备的标识可以包括是基站为终端设备分配的标识，例如可以是恢复标识Resume ID或I-RNTI等。
S1102：终端设备从寻呼消息中获取Preamble，且向基站发送Preamble。例如，终端设备可通过PDCCH命令发送Preamble。可选的，若TA无效，终端设备可向基站发送Preamble。若TA有效，则终端设备可不向基站发送Preamble。
S1103：终端设备利用PUSCH资源，向基站发送RRC消息，所述RRC消息(又称为RRC信令)可以为RRC连接恢复请求消息或RRC连接建立请求等，所述RRC消息中包 括寻呼响应，所述寻呼响应中可包括终端设备的标识和终端设备的身份验证信息。
S1104：基站对终端设备进行身份验证，且在身份验证通过后，执行S1105。
S1105：基站向终端设备发送RRC消息，所述RRC消息可以为连接恢复响应等，所述RRC消息中携带有下行数据。
在本申请实施例中，可通过预配置的PUSCH资源，向基站发送寻呼响应。相对于上述图8中的方案，在发送Preamble后，再为终端设备分配用于传输寻呼响应的PUSCH资源，可简化终端设备的随机接入过程，减少下行数据的传输时延。
第二种方案的实现包括但不限于以下几种方式，在以下几种方式中，为终端设备配置随机接入前导码、随机接入前导码的时频域资源和PUSCH资源的方式，可称为配置2步RACH资源的过程。
在一种可行的实施方式中，接入网设备可向终端设备发送第四配置信息，所述第四配置信息用于配置随机接入前导码、随机接入前导码的时频域资源和第一PUSCH资源；相应的，终端设备接收来自接入网设备的第四配置信息，终端设备根据第四配置信息，确定第一PUSCH资源。之后，在上述S902中利用第一PUSCH资源发送寻呼消息。可选的，终端设备还可利用随机接入前导码的时频域资源，向接入网设备发送随机接入前导码。相应的，接入网设备利用随机接入前导码的时频域资源，接收来自终端设备的随机接入前导码。关于第四配置信息可以为广播消息、专用消息或物理层信令等。
在另一种可行的实施方式中，上述S901中的寻呼消息中可携带有第五配置信息，所述第五配置信息用于配置随机接入前导码、随机接入前导码的时频域资源和第一PUSCH资源。终端设备根据第五配置信息，可确定第一PUSCH资源。可选的，终端设备还可根据第五配置信息，确定随机接入前导码和随机接入前导码的时频域资源，利用随机接入前导码的时频域资源，接入网设备发送随机接入前导码。
在又一种可行的实施方式中，接入网设备可向终端设备发送第六配置信息，所述第六配置信息用于配置随机接入前导码、随机接入前导码的时频域资源和第一PUSCH资源中时频域资源中的部分。上述S901中的寻呼消息中携带有第一PUSCH资源中时频域资源中的剩余部分，终端设备可根据寻呼消息，确定第一PUSCH资源中时频域资源中的剩余部分。最终，第一PUSCH资源中时频域资源中的部分和第一PUSCH资源中时频域资源中的剩余部分，可组成完整的第一PUSCH资源。之后，终端设备可执行上述S902中的步骤，在上述第一PUSCH资源上向接入网设备发送寻呼响应。可选的，终端设备还可利用随机接入前导码的时频域资源，向接入网设备发送随机接入前导码。相应的，接入网设备利用随机接入前导码的时频域资源，接收来自终端设备的随机接入前导码。
在另一种可行的实现方式中，接入网设备可向终端设备发送第七配置信息，所述第七配置信息用于配置至少一个随机接入配置，每个随机接入配置包括：随机接入前导码、随机接入前导码的时频域资源和PUSCH的时频域资源。终端设备根据寻呼消息，从至少一个随机接入配置中，确定第一随机接入配置，所述第一随机接入配置中包括第一PUSCH资源。终端设备根据第一随机接入配置，可确定第一PUSCH资源。
示例的，所述至少一个随机接入配置中每个随机接入配置对应一索引，所述寻呼消息中包括第一索引，终端设备根据第一索引，可确定第一随机接入配置，所述第一索引与第一随机接入配置存在对应关系。或者，所述至少一个随机接入配置中每个随机接入配置对 应一终端设备标识，所述寻呼消息中包括被寻呼终端设备的标识，终端设备根据被寻呼终端设备的标识，可从至少一个随机接入配置中，选择第一随机接入配置。其中，被寻呼终端设备的标识与第一随机接入配置存在对应关系。或者，至少一个随机接入配置中每个随机接入配置对应一随机接入前导码(或随机接入前导码标识)，所述寻呼消息中携带有第一随机接入前导码标识，终端设备可根据第一随机接入前导码标识，确定第一随机接入配置，所述第一随机接入前导码与第一随机接入配置存在对应关系。
在另一种可行的实现方式中，接入网设备可向终端设备发送第七配置信息，所述第七配置信息用于配置至少一个随机接入配置，每个随机接入配置包括：随机接入前导码、随机接入前导码的时频域资源和PUSCH的时频域资源。终端设备根据专用RNTI(如C-RNTI)加扰的PDCCH信令，从至少一个随机接入配置中，确定第一随机接入配置，所述第一随机接入配置中包括第一PUSCH资源。终端设备根据第一随机接入配置，可确定第一PUSCH资源。
其中，在上述方案2中，终端设备还可利用随机接入前导码的时频域资源，向接入网设备发送随机接入前导码。或者，终端设备首先判断时间提前量(timing advance，TA)是否有效，如果有效，则不再向接入网设备发送随机接入前导码。如果TA失效，则再发送随机接入前导码。
具体的，针对上述方案2，可利用控制面中信令承载中的NAS消息来传输上述S902中的寻呼响应。此时，所述寻呼响应中所携带的身份验证信息是根据终端设备的NAS安全密钥所生成的。
以上第一配置信息至第N配置信息中的“第一”、“第二”、和“第N”等不具有限制作用，仅仅为了方便区分不同实现方式中的配置信息，且在各自的实施例中，可以称为配置信息。N为大于1的正整数。
如图11所示，提供一种通信方法的流程，该流程具体为上述方案2中利用NAS消息传输寻呼响应的一种示例。该流程以对空闲态终端设备进行下行数据早传为例进行说明。该流程中的终端设备可对于上述图8中的终端设备，基站可对应于上述图8中的接入网设备，AMF/MME为核心网设备中的网元，2步随机接入信道(random access channel，RACH)资源可对应于上述方案2的随机接入配置。该流程包括：
S1200：AMF/MME缓存下行数据。
S1201：AMF/MME向基站发送寻呼消息，所述寻呼消息中包括下行数据早传指示以及被寻呼终端设备的标识。
S1202：基站向终端设备发送寻呼消息，所述寻呼消息中包括下行数据早传指示以及被寻呼终端设备的标识。
S1203：被寻呼的终端设备发现寻呼消息中携带有自己的终端设备标识，且包括下行数据早传指示。终端设备生成寻呼响应，所述寻呼响应是用NAS密钥进行完整性保护的，且所述寻呼响应中包括核心网分配的终端设备标识。
S1204：终端设备向基站发送Preamble。
S1205：终端设备使用2步RACH资源向基站发送NAS消息，所述NAS消息中携带有寻呼响应。所述2步RACH资源的配置信息包括Preamble、Preamble的时频域资源，以及PUSCH时频域资源和解调参考信号(demodulation reference signal，DMRS)等。在所 述S1205中，终端设备具体可使用2步RACH资源中的PUSCH时频域资源向基站发送NAS消息。关于2步RACH资源的配置方式，可具体参见上述方案二中的记载，在此不再说明。
基站在的收到寻呼响应后，可将寻呼响应发送到核心网网元，例如AMF/MME等。核心网网元用终端设备的安全密钥验证终端设备的NAS消息，核心网网元验证通过后，将下行数据放到NAS消息中，发送至基站，基站将下行数据发送给终端设备。或者上述过程，还可描述为以下。
S1206：基站向AMF/MME发送NAS消息，所述NAS消息中携带有寻呼响应。
S1207：AMF/MME对终端设备进行身份验证，且在身份验证成功后，执行S1208。
S1208：AMF/MME向基站发送NAS消息，所述NAS消息中包括下行数据。
S1209：基站向终端设备发送NAS消息。
S12010：终端设备向基站发送NAS消息，所述NAS消息中包括下行数据响应。比如，若终端设备正确接收下行数据，则下行数据响应中携带肯定确认(acknowledge，ACK)，否则下行数据响应中携带否定确认(negative acknowledge，NACK)。
或者，针对上述方案2，可利用接入层RRC信令来传输上述S902中的寻呼响应。此时，所述寻呼响应中所携带的身份验证信息是根据至少以下参数中的一项或多项所生成的：
所述终端设备的接入层密钥、所述终端设备源小区的物理小区标识、所述终端设备目标小区的物理小区标识、C-RNTI。
如图12所示，提供一种通信方法的流程，该流程具体为上述方案2中利用接入层RRC信令传输寻呼响应的一种示例。该流程中以对空闲态终端设备进行下行数据早传为例进行说明。该流程中的终端设备可对应于上述图8中的终端设备，基站可对应于上述图8中的接入网设备，AMF/MME为核心网设备中的网元，2步随机接入信道(random access channel，RACH)资源可对应于上述方案2的随机接入配置。该流程包括：
S1300：AMF/MME缓存下行数据。
S1301：AMF/MME向基站发送寻呼消息，所述寻呼消息中包括下行数据早传指示以及被寻呼终端设备的标识，所述被寻呼终端设备的标识可以是核心网为终端设备分配的标识，例如，S-TMSI，NG-5G-S-TMSI等。
S1302：基站向终端设备发送寻呼消息，所述寻呼消息中包括下行数据早传指示以及被寻呼终端设备的标识。
S1303：被寻呼的终端设备发现寻呼消息中携带有自己的终端设备标识，且包括下行数据早传指示。终端设备生成寻呼响应。所述寻呼响应是包括终端设备身份验证信息的接入层RRC消息。比如，所述RRC消息可以是RRC连接恢复请求消息等。
S1304：终端设备向基站发送Preamble。
S1305：终端设备使用2步RACH资源向基站发送寻呼响应。或者，可描述为：终端设备使用2步RACH资源向基站发送RRC消息，所述RRC消息中携带有寻呼响应，所述RRC消息具体可为RRC恢复请求等。具体的，终端设备使用2步RACH资源中的PUSCH资源向基站发送上述寻呼响应或上述RRC恢复请求等。
S1306：基站在接收到寻呼响应后，可解析寻呼响应，获取身份验证信息，使用终端设备的安全密钥验证终端设备的身份信息。且在基站对终端设备的身份验证成功后，执行 下述S1307。
S1307：基站向核心网网元(例如，AMF/MME)发送终端设备的上下文恢复请求。所述终端设备的上下文恢复请求用于指示终端设备挂起的RRC连接已经被恢复或者终端设备要接入进行数据早传。
S1308：核心网网元(例如，AMF/MME)向基站发送上下文恢复响应消息。此时，已经恢复基站和核心网网户面节点(例如SMF，或S-GW)的专用通道。
S1309:基站接收下行数据，且向终端设备发送RRC连接释放消息，所述RRC连接释放消息中携带有下行数据。
S1310：终端设备向基站发送下行数据反馈。例如，如果终端设备正确接收到下行数据，则所述下行数据反馈为ACK，否则下行数据反馈为NACK。
由上可见，在本申请实施例中，终端设备可利用预配置的2步RACH资源中的PUSCH资源，发送寻呼响应。相对于，上述图7中基站在终端设备发送Preamble后，再为终端设备分配用于发送寻呼响应的PUSCH资源，可减化随机接入的流程，减少下行数据时延。
如图13所示，提供一种通信方法的流程，该流程具体为上述方案2中利用用户面承载传输寻呼响应的一种示例。该流程中以对去活动态终端设备进行下行数据早传为例进行说明。该流程中的终端设备可对应于上述图8中的终端设备，基站可对应于上述图8中的接入网设备，UPF可为核心网设备中的网元，2步RACH资源可对应于上述方案2中的随机接入配置。该流程包括：
S1400：UPF向基站发送下行数据。
S1401：基站向终端设备发送寻呼消息，所述寻呼消息中携带有下行数据早传指示以及被寻呼终端设备的标识，所述被寻呼终端设备的标识可以是基站为终端设备分配的标识，例如，Resume ID，或I-RNTI等。
S1402：被寻呼的终端设备发现寻呼消息中携带自己的终端设备标识，且包括下行数据早传指示，终端设备生成响应消息，所述响应消息中包括终端设备的身份验证信息，所述终端设备的身份验证信息是根据以下参数中的一项或多项所生成的：终端设备的接入层密钥、源小区的物理小区标识、目标小区的小区标识、源C-RNIT中的一个或多个。
S1403：终端设备向基站发送Preamble。具体的，终端设备可从2步RACH资源中获取Preamble以及Preamble的时频域资源，之后利用Preamble的时频域资源向基站发送Preamble。
S1404：终端设备利用2步RACH资源向基站发送RRC消息，所述RRC消息可为RRC恢复请求消息，所述RRC消息中携带有寻呼响应。具体的，终端设备可利用2步RACH配置中的PUSCH资源，向终端设备发送寻呼响应，或携带有寻呼响应的RRC消息。
S1405：基站对终端设备进行身份验证，且验证通过后，执行S1405。
S1406：基站向终端设备发送RRC消息，所述RRC消息中携带有下行数据，所述RRC消息可为RRC连接释放消息。
S1407：终端设备向基站发送RRC消息，所述RRC消息中包括下行数据的反馈。比如，若终端设备正确接收下行数据，则下行数据的反馈为ACK，否则下行数据的反馈为NACK。
由上可见，在本申请实施例中，终端设备可利用预配置的2步RACH资源中的PUSCH 资源，发送寻呼响应。相对于，上述图7中基站在终端设备发送Preamble后，再为终端设备分配用于发送寻呼响应的PUSCH资源，可减化随机接入的流程，减少下行数据时延。
如图23所示，提供一种通信方法的流程，该流程具体为上述方案2中利用PUSCH传输响应的一种示例。该流程中以对去活动态终端设备进行下行数据早传为例进行说明。该流程中的终端设备可对应于上述图8中的终端设备，基站可对应于上述图8中的接入网设备，UPF可为核心网设备中的网元，2步RACH资源可对应于上述方案2中的随机接入配置。该流程包括：
S2400：UPF向基站发送下行数据。
S2401：基站向终端设备发送PDCCH信令，指示一个2步随机接入资源的信息。所述PDCCH用终端设备标识加扰，所述终端设备标识可以是基站为终端设备分配的标识，例如，Resume ID，或I-RNTI、C-RNTI、X-RNTI等。其中，一个2步随机接入资源的指示信息可以是2步随机接入资源的配置ID或preamble标识。其X-RNTI可以是C-RNTI，也可以是新定义的RNTI。X-RNTI可类似C-RNTI的终端标识，用于INACTVE态下用于加扰PDCCH的，长度可以和C-RNTI长度一样。X-RNTI可以是UE的专用标识。
S2402：被调度的终端设备生成响应消息，所述响应消息中包括终端设备的身份验证信息，所述终端设备的身份验证信息是根据以下参数中的一项或多项所生成的：终端设备的接入层密钥、源小区的物理小区标识、目标小区的小区标识、源C-RNIT中的一个或多个。
S2403：终端设备向基站发送Preamble。具体的，终端设备可从2步RACH资源中获取Preamble以及Preamble的时频域资源，之后利用Preamble的时频域资源向基站发送Preamble。
S2404：终端设备利用2步RACH资源向基站发送RRC消息，所述RRC消息可为RRC恢复请求消息，所述RRC消息中携带有寻呼响应。具体的，终端设备可利用2步RACH配置中的PUSCH资源，向终端设备发送寻呼响应，或携带有寻呼响应的RRC消息。
S2405：基站对终端设备进行身份验证，且验证通过后，执行S2406。
S2406：基站向终端设备发送RRC消息，所述RRC消息中携带有下行数据，所述RRC消息可为RRC连接释放消息。
S2407：终端设备向基站发送RRC消息，所述RRC消息中包括下行数据的反馈。比如，若终端设备正确接收下行数据，则下行数据的反馈为ACK，否则下行数据的反馈为NACK。
由上可见，在本申请实施例中，终端设备可利用预配置的2步RACH资源中的PUSCH资源，发送终端设备的响应。相对于，上述图8中基站在终端设备发送Preamble后，再为终端设备分配用于发送响应的PUSCH资源，可减化随机接入的流程，减少下行数据时延。
由上可见，在本申请实施例中，终端设备可利用预配置的2步RACH资源中的PUSCH资源，发送响应。相对于，上述图8中基站在终端设备发送Preamble后，再为终端设备分配用于发送响应的PUSCH资源，可减化随机接入的流程，减少下行数据时延。
可选的，针对上述图8所示的流程，还可包括：接入网设备向终端设备发送下行数据。或者，还可描述为：接入网设备向终端设备发送随机接入前导码的响应，所述随机接入前 导码的响应中携带有下行数据。相应的，终端设备接收来自接入网设备的下行数据。或者，还可描述为：终端设备接收来自接入网设备的随机接入前导码响应。具体的，下行数据可为媒体接入控制协议数据单元(media access control protocol data unit，MAC PDU)的方式传输。所述MAC PDU中包括一个或多个MAC子PDU。有的MAC子PDU包括MAC子头和负载(payload)两部分。有的MAC子PDU可只包括MAC子头。
在一种示例中，根据负载中携带的内部不同，可分为两种类型的MAC子PDU。如图14所示，第一种类型的MAC子PDU的负载部分包括TA命令(TA command)、C-RNTI，和终端设备竞争解决(contention resolution，CR)信息。
第二种类型的MAC子PDU的负载部分包括RRC连接释放消息或数据(data)等。进一步，仍可参照14所示，上述第一种类型的MAC子PDU的MAC子头部分可指示上述第二种类型的MAC子PDCH的负载部分携带的是RRC或Data等。
在另一种示例中，根据负载中携带的内部不同，可分为四种类型的MAC子PDU。如图15所示，第一种类型的MAC子PDU的负载部分可包括TA、C-RNTI以及CR信息。第二种类型的MAC子PDU的负载部分可包括MAC服务数据单元(service data unit，SDU)。第三种类型的MAC子PDU的负载部分可包括MAC控制元素(control element，CE)。第四种类型的MAC子PDU的负载部分可包括填充。仍可参照图15所示，第一类型的MAC子PDU的MAC子头部分可包括以下指示信息中至少一项，关于第一类型的MAC子PDCU的MAC子头部分可参见图15中的斜线填充部分。
指示与第一类型的MAC子PDU相邻的下一个MAC子PDU的负载部分所包括的是MAC SDU、MAC CE或填充。
指示与第一类型的MAC子PDU相邻的下一个MAC子PDU的MAC SDU中携带的是data或者RRC信令。
假设第一类型的MAC子PDU是发送给终端设备1的，所述第一类型的MAC子PDU的MAC子头部分还可指示该第一类型的MAC子PDU后面还有几个MAC子PDU是发送给终端设备1的。其可以指示0个。
如图16a至16c所示，提供第二种类型的MAC子PDU的三种MAC子头的格式，在每个MAC子头的格式中，R字段，是预留字段，值为0。F字段用于指示L字段是否存在，L字段可用于表示负荷的长度。逻辑信道标识(logical channel ID，LC ID)可确定MAC子PDU的负荷是MAC SDU、MAC CE或填充等。
本申请实施例还提供一种非授权信道的接入方法，为了便于理解，首先对目前的非授权信道的接入进行介绍。
在非授权(Unlicensed)场景，各通信设备(例如终端设备或者网络设备)可以采用先听后说(listen before talk，LBT)(或者称，先检测后发送)机制竞争使用非授权频段的资源。
一般地，LBT是以信道(例如20MHz)的粒度进行的。通信设备在某个信道(例如记作第一信道)上发送信号(例如，数据信号)之前，可以先检测该第一信道是否空闲，例如，是否检测到附近的通信设备正在占用该第一信道发送信号，这一检测过程可以称为空闲信道评估(clear channel assessment，CCA)或者称为信道接入过程。目前支持2种检测过程：
第一信道接入类型，也可称为第一信道接入过程，或者称为基于回退的信道接入过程。 具体的，通信设备可以在非授权信道上执行上述LBT，检测到非授权信道空闲后，才可以使用非授权信道一段时间，这个时间叫信道占用时间(channel occupancy time，COT)。这个过程也称为LBT类型4。或者，通信设备可以在非授权信道上执行上述LTB，且从一个竞争窗口中，随机选择一个数值A，当检测到至少A个空闲的时隙之后，才可以确定信道接入过程完成。空闲的时隙是指在一个时隙内，能量检测的能力能量低于一定门限。
第二信道接入类型，也可称为第二信道接入过程，只有当网络设备把COT分享给终端设备，终端才可以使用。这个过程也称为LBT类型2。第二信道接入过程：检测固定时长，如果能量低于门限，则认为空闲。
对于基站来说，进行第一信道接入过程，在信道接入过程完成后才发送寻呼。终端设备在收到寻呼消息后，进行第一信道接入过程，在信道接入过程完成后，才发送随机接入前导。
基于上述，提供一种非授权信道的接入方法及装置，该方法的原理为：基站在向终端设备发送寻呼消息时，所述寻呼消息可指示非授权信道接入的接入。比如，若所述寻呼消息指示终端设备利用第一信道接入类型执行非授权信道接入，或者当所述寻呼消息指示终端设备利用第二信道接入类型非授权信道接入。相对于上述方案，终端设备在接收到寻呼消息后，只有采用第一信道接入类型执行非授权信道的接入，终端设备可灵活的进行非授权信道的执行。同时，由于第二信道接入类型的信道接入时长，通常要小于第一信道接入类型的信道接入时长，因此，采用本申请的方法，可减少终端设备的信道接入时长。
如图17所示，提供一种非授权信道的接入方法流程，该流程中的接入网设备可为上述图1中的RAN110，所述接入网设备可采用上述图2或图3所示的网络架构。终端设备可为上述图1中的终端设备130。该流程包括：
S1800：接入网设备向终端设备发送寻呼消息，所述寻呼消息中携带有指示信息。相应的，接入网设备接收来自终端设备的寻呼消息。可选的，所述寻呼消息也可替换为PDCCH信令。比如，X-RNTI加扰的PDCCH。X-RNTI可以是C-RNTI，也可以是新定义的RNTI。X-RNTI可类似C-RNTI的终端标识，用于INACTVE态下用于加扰PDCCH的，长度可以和C-RNTI长度一样。X-RNTI可以是UE的专用标识。
S1801：终端设备根据所述指示信息，执行非授权信道的接入。
示例的，所述指示信息，可指示非授权信道的接入类型。比如，当所述指示信息指示第一信道接入类型时，终端设备可按照第一信道接入类型执行非授权信道的接入。而当所述指示信息指示第二信道接入类型时，终端设备可按照第二信道接入类型执行非授权信道的接入。或者，所述指示信息可指示非授权信道的可占用时间。而当所述非授权信道的可占用时长大于或等于第一时长时，所述终端设备按照第二信道接入类型，执行非授权信道接入；当所述非授权信道的可占用时长小于所述第一时长时，所述终端设备按照第一信道接入类型，执行非授权信道接入。
以上实施例中,当非授权信道的可占用时长等于第一时长时，终端设备按照第二信道接入类型，执行非授权信道接入。在其他实施例中，当非授权信道的可占用时长等于第一时长时，终端设备按照第一信道接入类型，执行非授权信道接入。
上述图17流程中的终端设备可位于RRC空闲态，或去活动态，甚至RRC连接态等，不作限定。
可选的，在上述图17中的流程中，还可包括：接入网设备确定非授权信道的可占用时长，同时，接入网设备可根据非授权信道的可占用时长，确定寻呼消息中的指示信息。例如，当非授权信道的可占用时长大于或等于第二时长时，所述接入网络设备可确定所述指示信息用于指示第二信道接入类型。否则，所述接入网设备可确定所述指示信息用于指示第一信道接入类型。或者，所述指示信息可直接指示非授权信道的可占用时长。
以上实施例中,当非授权信道的可占用时长等于第二时长时，指示信息用于指示第二信道接入类型。在其他实施例中，当非授权信道的可占用时长等于第二时长时，指示信息用于指示第一信道接入类型。
此外，第一时长和第二时长中的“第一”和“第二”仅仅为了方便区分描述，并不对时长进行限制，具体第一时长可以等于第二时长，也可以不同。此外，在接入网设备和终端设备侧单独描述时，都可以称为时长。
如图18所示，提供一种非授权信道的接入方法流程，该流程可为上述图17流程的一种具体示例，该流程的基站可对应于上述图17所示流程中的接入网设备，终端设备可对应于上述图17所示流程中的终端设备。该流程包括：
S1900：基站执行非授权信道接入。
S1901：基站向终端设备发送寻呼消息，所述寻呼消息中携带信道接入类型或用的信道占用时长的指示信息。可选的，所述寻呼消息可替代为PDCCH信令。
S1903：终端设备根据所述指示，执行信道接入过程。可选的，所述终端设备可处于空闲态或去活动态等，不作限定。
具体的，在Unlicensed场景下，基站可先执行信道接入过程，在信道接入过程完成后。且剩余的有效信道占用时间较长，则基站可指示终端设备采用第二信道接入过程类型进行接入。若剩余的有效信道占用时间较短或不多，则基站可指示终端设备采用第一信道接入过程类型进行接入。或者，在基站执行信道接入过程完成后，可直接把剩余的有效信道占用时间通知终端设备。而相应的，终端设备可根据这个时长确定用第一还是第二信道接入过程进行接入过程。比如，若这个时长低于预定义门限进行第一信道接入过程。或者，若这个时长低于预定义门限进行第二信道接入过程。或者，终端设备可在上述剩余的有效信道占用时间内不必进行信道接入，直接进行上行发送操作。比如，向网络设备发送寻呼响应等。可以理解的是，终端设备除了采用寻呼消息发送上述指示外，即在寻呼消息中携带上述指示。还可利用PDCCH发送上述指示，即在PDCCH中携带上述指示。
进一步的，若基站通过指示信息指示终端设备的信道接入类型，可采用以下2种表示方式:用比特值，表示第一信道接入过程类型或第二信道接入过程类型。比如，用0表示第一信道接入过程类型，用1表示第二信道接入过程类型。或者，用枚举类型的值，表示第一信道接入过程类型或第二信道接入过程类型。比如，用第一值表示第一信道接入过程类型，用第二值表示第二信道接入过程类型。需要说明的是，若上述指示第二信道接入过程类型，那么终端设备可进行第二信道接入过程的信道接入。此时，终端设备的信道检测是固定时长，如果能量低于门限，则认为空闲。
在本申请实施例中，基站在寻呼消息或下行的PDCCH中指示终端设备使用哪种信道接入过程，使得终端设备有机会使用第二信道接入过程，降低信道接入过程的时延，提早发送寻呼响应，进而实现下行数据早传。
本申请实施例还提供一种应用场景：对于去活动态终端设备，用预配置的PUSCH资源发送上行数据(例如寻呼响应)时，若终端设备没有预先和接入网设备建立下行波束的配置对关系时，当小区有多个同步信号块(synchronization signal block，SSB)，则终端设备没有办法确定上行数据的响应(即下行数据)发送的PDCCH在哪个SSB上接收。
基于上述提供两种解决方案，方案1：配置PUSCH资源和SSB对应关系为多对一，或一对一，终端设备通过这个映射关系，确定在PUSCH资源上发送上行数据后，在这个PUSCH资源对应的SSB上监听PDCCH。方案2：PUSCH资源和SSB没有对应关系。当终端设备选择一个下行SSB后，在PUSCH资源上发送数据时指示选择的SSB标识，然后在这个SSB上监听PDCCH。
针对上述方案1，如图19所示，提供一种通信方法的流程图，该流程中的接入网设备可为上述图1中的RAN110，所述接入网设备可采用上述图2或图3所示的网络架构。终端设备可为上述图1中的终端设备130。该流程包括：
S2000：终端设备利用第一PUSCH资源，向接入网设备发送上行数据。相应的，接入网设备利用第一PUSCH资源，接收来自终端设备的上行数据。
S2001：终端设备根据PUSCH资源与SSB的对应关系，确定第一PUSCH资源所对应的第一SSB。
比如，PUSCH资源与SSB的对应关系可以是预配置的。接入网设备可向终端设备发送配置信息。所述配置信息可配置PUSCH资源和SSB的对应关系。相应的，终端设备可接收来自接入网设备的配置信息。
其中，和SSB有映射关系的，可以是预配置的PUSCH资源包括PUSCH的时域资源、频域资源或DMRS信息等，不作限定。
终端设备可通过RRC专用消息或广播消息配置第一PUSCH资源和SSB ID的对应关系。
S2002：终端设备在第一SSB上，监听PDCCH。
可选的，上述图20流程中的终端设备可处于RRC空闲态、去活动态，甚至RRC连接态等，不作限定。
在本申请实施例中，终端设备可预配置的PUSCH资源和SSB的对应关系，监听PDCCH，接收下行数据。
如图20所示，提供一种通信方法的流程，该流程可为上述图19所示流程的一示例。该流程中的终端设备可为上述图19中的终端设备，基站可为上述图19中的接入网设备，该流程包括：
S2100：终端设备从广播信息接收预配置的PUSCH资源和SSB的映射关系。
其中，和SSB有映射关系的，可以是预配置的PUSCH资源包括PUSCH的时域资源、频域资源或DMRS信息等，不作限定。
S2101：终端设备的上行数据到达，从广播消息中的PUSCH资源列表中选择一个资源。
比如，终端设备可选择满足第一门限的SSB集合中且有预配置的PUSCH资源的SSB。或者，终端设备选择满足第二门限《第一门限的SSB集合中有预配置的PUSCH资源的SSB。或者，终端设备选择满足第一门限的SSB集合中RSRP最高的且有预配置的PUSCH资源的SSB。
S2102：终端设备通过选择的预配置的PUSCH资源发送数据。基站根据预配置PUSCH 的时域资源、频域资源或DMRS信息确定终端设备选择的SSB。
终端设备发送数据后，启动一个Timer，在这个timer内监听该PUSCH资源对应的SSB的PDCCH。
S2103：基站检测到终端设备在PUSCH资源上发送数据，根据PUSCH资源和SSB的对应关系，或根据或RRC专用消息和SSB的对应关系，确定对应的SSB索引。
S2104：基站在该SSB对应的PDCCH搜索空间上发送PDCCH。可选的，基站可以PDCCH指示PDSCH资源，在PDSCH资源发送响应信息。基站可以在PDCCH指示ACK或NACK信息。
针对上述方案1，如图21所示，提供一种通信方法的流程图，该流程中的接入网设备可为上述图1中的RAN110，所述接入网设备可采用上述图2或图3所示的网络架构。终端设备可为上述图1中的终端设备130。该流程包括：
S2200：终端设备利用第一PUSCH资源，向接入网设备发送上行数据和第一SSB标识。相应的，接入网设备接收来自终端设备的上行数据和第一SSB标识。
S2201：终端设备在第一SSB上，监听PDCCH。
可选的，在上述S2200之前，还可包括：接入网设备向终端设备发送指示信息，所述指示信息用于指示终端设备需要上报SSB ID。而终端设备在接收到上述指示信息后，再执行上述S2200。
如图22所示，提供一种通信方法的流程，该流程可为上述图21所示流程的一示例。该流程中的终端设备可为上述图21中的终端设备，基站可为上述图21中的接入网设备，该流程包括：
S2300：终端设备从广播信息接收一个指示信息，该信息指示去活动态终端设备用预配置PUSCH资源进行数据传输时上报SSB ID。终端设备在PUSCH资源上发送数据后，确定要监听PDCCH所在的SSB。如果网络没有指示终端设备上报SSB ID，终端设备用协议预定义的SSB(如，SSB1)来接收反馈。
S2301：终端设备的上行数据到达，选择一个PUSCH资源。
具体的，终端设备选择满足第一门限的SSB集合中且有预配置的PUSCH资源的SSB。或者，选择满足第二门限(第一门限)的SSB集合中有预配置的PUSCH资源的SSB。或者，选择满足第一门限的SSB集合中RSRP最高的且有预配置的PUSCH资源的SSB。
其中，第一门限和第二门限可以是网络配置给终端设备，也可以协议约定的。
S2302：终端设备通过选择的PUSCH资源发送数据和SSB ID。
例如在RRC resume Req st/MAC CE/PUSCH数据中UCI部分/PUCCH指示SSB ID。终端设备发送数据后，启动一个Timer，在这个timer内监听该SSB的PDCCH。
S2303：基站读取SSB ID。
S2304：基站检测到终端设备在PUSCH资源上发送数据，确定对应的SSB，在该SSB对应的PDCCH搜索空间上发送PDCCH。可选的，基站可以PDCCH指示PDSCH资源，在PDSCH资源发送响应信息。基站可以在PDCCH指示ACK或NACK信息。
由上可见，终端设备在预配置PUSCH上发送数据时通过映射或显式指示一个SSB ID，并监听该SSB的PDCCH，帮助网络确定在哪个合适的SSB的PDCCH发送调度响应给终端设备。
上述主要从通信装置的角度对本申请实施例提供的方案进行了介绍。可以理解的是，为了实现上述功能，通信装置可以包括执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请的实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例还提供用于实现上述任一种方法的装置。例如，提供一种装置包括用以实现以上任一种方法中终端设备所执行的各个步骤的单元(或手段)。再如，还提供一种装置，包括用以实现以上任一种方法中接入网设备所执行的各个步骤的单元(或手段)。
以上结合图4至图23详细说明了本申请实施例提供的方法。以下，结合图24至图27详细说明本申请实施例提供的装置。应理解，装置实现施的描述与方法实施例的描述相互对应。因此，未详细描述的内容可参见上文方法实施例中的描述。
图24为本申请实施例提供的装置2500的示意性框图，用于实现上述方法中接入网设备或终端设备的功能。例如，该装置可以为软件模块或芯片系统。所述芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。该装置2500包括通信单元2501，还可包括处理单元2502。通信单元2501，可以与外部进行通信。处理单元2502，用于进行处理，例如，控制通信单元2501接收寻呼消息，或者发送寻呼响应等。通信单元2501，还可以称为通信接口、收发单元、输入\输出接口等。例如，通信单元2501可以包括发送单元和/或接收单元等，分别用于执行上文图5至图24流程中终端设备或接入网设备的发送或者接收步骤。
在一种示例中，装置2500可实现对应于上文图8所示流程中终端设备执行步骤，所述装置2500可以是终端设备，或者配置于终端设备中的芯片或电路。通信单元2501用于执行上文方法实施例中终端设备侧的收发相关操作，处理单元2502用于执行上文方法实施例中终端设备侧的处理相关操作。
比如，通信单元2501，用于接收来自接入网设备的寻呼消息，以及利用第一PUSCH资源，向接入网设备发送寻呼响应等。处理单元2502，用于对寻呼消息进行处理，或生成寻呼响应等。其中，所述第一PUSCH资源是预配置的，或者，所述第一PUSCH资源是根据寻呼消息确定的，或者，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，所述寻呼响应中携带有所述终端设备的标识和身份验证信息，所述终端设备的标识和身份验证信息用于所述终端设备的身份验证。
可选的所述第一PUSCH资源是预配置的。通信单元2501，还用于接收来自所述接入网设备的第一配置信息，所述第一配置信息用于配置所述第一PUSCH资源；处理单元2502，还用于根据所述第一配置信息，确定所述第一PUSCH资源。
可选的，所述第一PUSCH资源是根据所述寻呼消息确定的，所述寻呼消息中携带有所述第一PUSCH资源的配置信息，处理单元2502，还用于根据所述寻呼消息中携带的所述第一PUSCH资源的配置信息，确定所述第一PUSCH资源。
可选的，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，通信单元2501，还用于接收来自所述接入网设备的第二配置信息，所述第二配置信息用于配置至少1个 PUSCH资源。处理单元2502，还用于根据所述寻呼消息，确定所述第一PUSCH资源。
可选的，所述至少1个PUSCH资源中每个PUSCH资源对应一个索引，所述寻呼消息中携带有第一索引，处理单元2502在根据所述寻呼消息，确定所述第一PUSCH资源时，具体用于：根据所述第一索引，在所述至少一个PUSCH资源中，选择所述第一PUSCH资源，所述第一PUSCH资源对应于第一索引。
可选的，所述至少1个PUSCH资源中每个PUSCH资源对应一终端设备标识，所述寻呼消息中携带有被寻呼终端设备的标识，处理单元2502在根据所述寻呼消息，确定所述第一PUSCH资源时，具体用于根据所述寻呼消息中携带的被寻呼终端设备的标识，在所述至少一个PUSCH资源中，选择所述第一PUSCH资源，所述第一PUSCH资源对应于所述被寻呼终端设备的标识。
可选的，所述至少1个PUSCH资源中每个PUSCH对应一随机接入前导码标识，所述寻呼消息中携带有所述第一随机接入前导码标识，处理单元2502在根据所述寻呼消息，确定所述第一PUSCH资源时，具体用于：根据所述第一随机接入前导码标识，在所述至少一个PUSCH资源中，选择所述第一PUSCH资源，所述第一PUSCH资源所对应于所述第一随机接入前导码标识。
可选的，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的。通信单元2501，还用于接收来自所述接入网设备的第三配置信息，所述第三配置信息用于配置所述第一PUSCH资源中时频域资源的部分，所述寻呼消息中携带有所述第一PUSCH资源中时频域资源的剩余部分；处理单元2502，还用于根据所述寻呼消息，确定所述第一PUSCH资源中时频域资源的剩余部分，以及，根据所述第一PUSCH资源中时频域资源的部分和所述第一PUSCH资源中时频域资源的剩余部分，确定所述第一PUSCH资源。
可选的，所述第一PUSCH资源是预配置的；通信单元2501，还用于接收来自所述接入网设备的第四配置信息，所述第四配置信息用于配置随机接入前导码、所述随机接入前导码的时频域资源和所述第一PUSCH资源；处理单元2502，还用于根据所述第四配置信息，确定所述第一PUSCH资源。
可选的，所述第一PUSCH资源是根据所述寻呼消息确定的，所述寻呼消息中携带有第五配置信息，所述第五配置信息用于配置随机接入前导码、所述随机接入前导码的时频域资源和所述第一PUSCH资源；处理单元2502，还用于根据所述寻呼消息中携带的第五配置信息，确定所述第一PUSCH资源。
可选的，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的；通信单元2501，还用于接收来自所述接入网设备的第六配置信息，所述第六配置信息用于配置随机接入前导码、所述随机接入前导码的时频域资源和所述第一PUSCH资源中时频域资源中的部分，所述寻呼消息中携带有所述第一PUSCH资源中时频域资源的剩余部分；处理单元2502，还用于根据所述寻呼消息，确定所述第一PUSCH资源中时频资源的剩余部分，以及，根据所述第一PUSCH资源中时频域资源中的部分和所述第一PUSCH资源中时频域资源的剩余部分，确定所述第一PUSCH资源。
可选的，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，通信单元2501，还用于接收来自所述接入网设备的第七配置信息，所述第七配置信息用于配置至少一个随机接入配置，每个随机接入配置包括：随机接入前导码、所述随机接入前导码的时频域资源和所述PUSCH的时频域资源；处理单元2502，还用于根据所述寻呼消息，从所述至少 一个随机接入配置中，确定第一随机接入配置，所述第一随机接入配置中包括所述第一PUSCH资源，以及，根据所述第一随机接入配置，确定所述第一PUSCH资源。
可选的，所述至少一个随机接入配置中每个随机接入配置对应一索引，所述寻呼消息中携带有第一索引，处理单元2502在根据所述寻呼消息，从所述至少一个随机接入配置中，确定第一随机接入配置时，具体用于：根据所述第一索引，从所述至少一个随机接入配置中，选择第一随机接入配置，所述第一随机接入配置对应于所述第一索引。
可选的，所述至少一个随机接入配置中每个随机接入配置对应一终端设备标识，所述寻呼消息中携带有被寻呼终端设备的标识，处理单元2502在根据所述寻呼消息，从所述至少一个随机接入配置中，确定第一随机接入配置时，具体用于：根据所述被寻呼终端设备的标识，从所述至少一个随机接入配置中，选择所述第一随机接入配置，所述第一随机接入配置对应于所述被寻呼终端设备的标识。
可选的，所述至少一个随机接入配置中每个随机接入配置对应一随机接入前导码标识，所述寻呼消息中携带有第一随机接入前导码标识，处理单元2502在根据所述寻呼消息，从所述至少一个随机接入配置中，确定第一随机接入配置时，具体用于：根据所述第一随机接入前导码标识，从所述至少一个随机接入配置中，选择所述第一随机接入配置，所述第一随机接入配置所对应于所述第一随机接入前导码标识。
可选的，通信单元2501，还用于利用所述随机接入前导码的时频域资源，向所述接入网设备发送所述随机接入前导码；或者，在定时提前量TA无效时，利用随机接入前导码的时频域资源，向所述接入网设备发送所述随机接入前导码。
可选的，通信单元2501，还用于接收来自所述接入网设备的随机接入前导码的响应消息，所述随机接入前导码的响应消息中包括下行数据。
可选的，所述寻呼消息中包括下行数据早传指示或随机接入前导码标识，通信单元2501，在利用所述第一PUSCH资源，向所述接入网设备发送寻呼响应时，具体用于：根据所述下行数据早传指示或所述随机接入前导码标识，在所述第一PUSCH资源向所述接入网设备发送寻呼响应。
可选的，所述寻呼响应为非接入层NAS消息，所述终端设备的身份验证信息是根据所述终端设备的NAS安全密钥所生成的。
可选的，所述寻呼响应为无线资源控制RRC消息，所述终端设备的身份验证信息是根据以下参数中一项或多项生成的：
所述终端设备的接入层密钥、所述终端设备源小区的物理小区标识、所述终端设备目标小区的物理小区标识、源小区无线网络临时标识C-RNTI。
在一种示例中，装置2500可实现对应于上文图8所示流程中接入网设备执行步骤，装置2500可以是接入网设备，或者配置于接入网设备中的芯片或电路。通信单元2501用于执行上文方法中接入网设备侧的收发相关操作，处理单元2502用于执行上文方法实施例中接入网设备侧的处理相关操作。
比如，通信单元2501，用于向终端设备发送寻呼消息，以及利用第一PUSCH资源，接收来自终端设备的寻呼响应。处理单元2502，用于对寻呼消息进行处理，以及生成寻呼响应等。所述第一PUSCH资源是预配置的，或者，所述第一PUSCH资源是根据寻呼消息确定的，或者，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，所述寻呼响应中携带有所述终端设备的标识和身份验证信息，所述终端设备的标识和身份验证信息用 于所述终端设备的身份验证。
可选的，所述第一PUSCH资源是预配置的，通信单元2501，还用于向所述终端设备发送第一配置信息，所述第一配置信息用于配置所述第一PUSCH资源。
可选的，所述第一PUSCH资源是根据所述寻呼消息确定的，所述寻呼消息中携带有所述第一PUSCH资源的配置信息。
可选的，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，通信单元2501，还用于向所述终端设备发送第二配置信息，所述第二配置信息用于配置至少1个PUSCH资源。
可选的，所述至少1个PUSCH资源中每个PUSCH资源对应一个索引，所述寻呼消息中携带有第一索引，所述第一索引对应于所述第一PUSCH资源。
可选的，所述至少1个PUSCH资源中每个PUSCH资源对应一终端设备标识，所述寻呼消息中携带有被寻呼终端设备的标识，所述被寻呼终端设备的标识对应于所述第一PUSCH资源。
可选的，所述至少1个PUSCH资源中每个PUSCH对应一随机接入前导码标识，所述寻呼消息中携带有所述第一随机接入前导码标识，所述第一随机接入前导码标识对应于所述第一PUSCH资源。
可选的，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，通信单元2501，还用于向所述终端设备发送第三配置信息，所述第三配置信息用于配置所述第一PUSCH资源中时频域资源的部分；
其中，所述寻呼消息中携带有所述第一PUSCH资源中时频域资源的剩余部分，所述第一PUSCH资源包括所述第一PUSCH资源中时频域资源的部分和所述第一PUSCH资源中时频域资源的剩余的部分。
可选的，所述第一PUSCH资源是预配置的，通信单元2501，还用于向所述终端设备发送第四配置信息，所述第四配置信息用于配置随机接入前导码、所述随机接入前导码的时频域资源和所述第一PUSCH资源。
可选的，所述第一PUSCH资源是根据所述寻呼消息确定的，所述寻呼消息中携带有第五配置信息，所述第五配置信息用于配置随机接入前导码、所述随机接入前导码的时频域资源和所述第一PUSCH资源。
可选的，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，通信单元2501，还用于向所述终端设力求发送第六配置信息，所述第六配置信息用于配置随机接入前导码、所述随机接入前导码的时频域资源和所述第一PUSCH资源中时频域资源的部分；
其中，所述寻呼消息中携带有所述第一PUSCH资源中时频域资源的剩余部分，所述第一PUSCH资源包括所述第一PUSCH资源中时频域资源的部分和所述第一PUSCH资源中时频域资源的剩余部分。
可选的，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，通信单元2501，还用于向所述终端设备发送第七配置信息，所述第七配置信息用于配置至少一个随机接入配置，所述每个随机接入配置包括：随机接入前导码、所述随机接入前导码的时频域资源和所述PUSCH的时频域资源。
可选的，所述至少一个随机接入配置中每个随机接入配置对应一索引，所述寻呼消息中携带有第一索引，所述第一索引对应于所述第一随机接入配置，所述第一随机接入配置 中包括所述第一PUSCH资源。
可选的，所述至少一个随机接入配置中每个随机接入配置对应一终端设备标识，所述寻呼消息中携带有被寻呼终端设备的标识，所述被寻呼终端设备的标识对应于所述第一随机接入配置，所述第一随机接入配置中包括所述第一PUSCH资源。
可选的，所述至少一个随机接入配置中每个随机接入配置对应于一随机接入前导码标识，所述寻呼消息中携带有第一随机接入前导码标识，所述第一随机接入前导码标识对应于所述第一随机接入配置，所述第一随机接入配置中包括所述第一PUSCH资源。
可选的，通信单元2501，还用于利用所述随机接入前导码的时频域资源，接收来自终端设备的随机接入前导码。
可选的，通信单元2501，还用于向所述终端设备发送随机接入前导码的响应消息，所述随机接入前导码的响应消息中包括下行数据。
可选的，所述寻呼消息中包括下行数据早传指示或随机接入前导码标识，通信单元2501在利用第一PUSCH资源，接入来自终端设备的寻呼响应时，具体用于：
根据所述下行数据早传指示或所述随机接入前导码标识，在所述第一PUSCH资源上接收来自所述终端设备的寻呼响应。
可选的，所述寻呼响应为非接入层NAS消息，所述终端设备的身份验证信息是根据所述终端设备的NAS安全密钥所生成的。或者，所述寻呼响应为无线资源控制RRC消息，所述终端设备的身份验证信息是根据以下参数中一项或多项生成的：
所述终端设备的接入层密钥、所述终端设备源小区的物理小区标识、所述终端设备目标小区的物理小区标识、源小区无线网络临时标识C-RNTI。
在一种示例中，装置2500可实现对应于上文图17所示流程中终端设备步骤。装置2500可以是终端设备，或者配置于终端设备中的芯片或电路。通信单元2501用于执行上文方法中终端设备侧的收发相关操作，处理单元2502用于执行上文方法实施例中终端设备侧的处理相关操作。
比如，通信单元2501，用于接收来自接入网设备的寻呼消息，所述寻呼消息中包括指示信息。处理单元2502，用于根据所述指示信息，执行非授权信道的接入。
可选的，所述指示信息用于指示所述非授权信道的接入类型，处理单元2502在根据所述指示信息，执行非授权信道的接入时，具体用于：
当所述指示信息用于指示第一信道接入类型时，按照所述第一信道接入类型，执行所述非授权信道的接入；或者，当所述指示信息用于指示第二信道接入类型时，按照所述第二信道接入类型，执行所述非授权信道的接入。
可选的，所述指示信息用于指示所述非授权信道的可占用时长，处理单元2502在根据所述指示信息，执行非授权信道的接入时，具体用于：
当所述非授权信道的可占用时长大于或等于第一时长时，按照第二信道接入类型，执行非授权信道接入；或者，当所述非授权信道的可占用时长小于所述第一时长时，按照第一信道接入类型，执行非授权信道接入。
可选的，所述终端设备处于无线资源控制RRC空闲态，或者，所述终端设备处于去活动态。
在一种示例中，装置2500可实现对应于上文图17所示流程中接入网设备步骤。装置2500可以是接入网设备，或者配置于接入网设备中的芯片或电路。通信单元2501用于执 行上文方法中接入网设备侧的收发相关操作，处理单元2502用于执行上文方法实施例中接入网设备侧的处理相关操作。
比如，处理单元2502，用于确定非授权信道的可占用时长，根据所述非授权信道的可占用时长，确定指示信息。通信单元2502，用于向终端设备发送寻呼消息，所述寻呼消息中携带有指示信息等。
可选的，处理单元2502在根据所述非授权信道的可占用时长，确定指示信息时，具体用于：当所述非授权信道的可占用时长大于或等于第二时长时，确定所述指示信息为第二信道接入类型；或者，当所述非授权信道的可占用时长小于所述第二时长时，确定所述指示信息为第一信道接入类型。或者，所述指示信息用于指示所述非授权信道的可占用时长。
在一种示例中，装置2500可实现对应于上文图19所示流程中终端设备执行步骤，所述装置2500可以是终端设备，或者配置于终端设备中的芯片或电路。通信单元2501用于执行上文方法实施例中终端设备侧的收发相关操作，处理单元2502用于执行上文方法实施例中终端设备侧的处理相关操作。
比如，通信单元2501，用于利用第一PUSCH资源，向接入网设备发送上行数据。处理单元2502，用于根据PUSCH资源和同步信号块SSB的对应关系，确定第一PUSCH资源对应的第一SSB。处理单元2502，还用于在第一SSB上，监听PDCCH。
可选的，通信单元2501，还用于接收来自所述接入网设备的配置信息，所述配置信息用于配置所述PUSCH资源和SSB的对应关系。
在一种示例中，装置2500可实现对应于上文图19所示流程中接入网设备执行步骤，装置2500可以是接入网设备，或者配置于接入网设备中的芯片或电路。通信单元2501用于执行上文方法中接入网设备侧的收发相关操作，处理单元2502用于执行上文方法实施例中接入网设备侧的处理相关操作。
比如，通信单元2501，用于利用第一PUSCH资源，接收来自终端设备的上行数据；处理单元2502，用于根据PUSCH资源和同步信号块SSB的对应关系，确定第一PUSCH资源对应的第一SSB。通信单元2501，还用于在所述第一SSB上，发送PDCCH。
可选的，通信单元2501，还用于向终端设备发送配置信息，所述配置信息用于配置所述PUSCH资源和SSB的对应关系。
在一种示例中，装置2500可实现对应于上文图21所示流程中终端设备执行步骤，所述装置2500可以是终端设备，或者配置于终端设备中的芯片或电路。通信单元2501用于执行上文方法实施例中终端设备侧的收发相关操作，处理单元2502用于执行上文方法实施例中终端设备侧的处理相关操作。
比如，处理单元2502，确定第一SSB；通信单元2501，用于利用第一PUSCH资源，向接入网设备发送上行数据和第一SSB的标识；处理单元2502，用于在第一SSB上，监听PDCCH。
可选的，通信单元2501，还用于接收来自所述接入网设备的指示信息，所述指示信息用于指示所述终端设备需要上报SSB的标识。
在一种示例中，装置2500可实现对应于上文图21所示流程中接入网设备执行步骤，装置2500可以是接入网设备，或者配置于接入网设备中的芯片或电路。通信单元2501用于执行上文方法中接入网设备侧的收发相关操作，处理单元2502用于执行上文方法实施 例中接入网设备侧的处理相关操作。
比如，通信单元2501，用于利用第一PUSCH，接收来自终端设备的上行数据和第一同步信号块SSB的标识，以及在所述第一SSB上，向终端设备发送物理下行控制信道PDCCH。处理单元2502，用于对上行数据进行处理等。
可选的，通信单元2501，还用于向所述终端设备发送指示信息，所述指示信息用于指示所述终端设备需要上报SSB的标识。
应理解以上装置中单元的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且装置中的单元可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分单元以软件通过处理元件调用的形式实现，部分单元以硬件的形式实现。例如，各个单元可以为单独设立的处理元件，也可以集成在装置的某一个芯片中实现，此外，也可以以程序的形式存储于存储器中，由装置的某一个处理元件调用并执行该单元的功能。此外这些单元全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件又可以成为处理器，可以是一种具有信号的处理能力的集成电路。在实现过程中，上述方法的各步骤或以上各个单元可以通过处理器元件中的硬件的集成逻辑电路实现或者以软件通过处理元件调用的形式实现。
在一个例子中，以上任一装置中的单元可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital singnal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)，或这些集成电路形式中至少两种的组合。再如，当装置中的单元可以通过处理元件调度程序的形式实现时，该处理元件可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)或其它可以调用程序的处理器。再如，这些单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
以上用于接收的单元是一种该装置的接口电路，用于从其它装置接收信号。例如，当该装置以芯片的方式实现时，该接收单元是该芯片用于从其它芯片或装置接收信号的接口电路。以上用于发送的单元是一种该装置的接口电路，用于向其它装置发送信号。例如，当该装置以芯片的方式实现时，该发送单元是该芯片用于向其它芯片或装置发送信号的接口电路。
如图25所示，为本申请实施例提供的网络设备的结构示意图之一，用于实现以上实施例中接入网设备的相关操作。如图25所示，该网络设备包括：天线2601、射频装置2602、基带装置2603。天线2601与射频装置2602连接。在上行方向上，射频装置2602通过天线2601接收终端设备发送的信息，将终端设备发送的信息发送给基带装置2603进行处理。在下行方向上，基带装置2603对终端设备的信息进行处理，并发送给射频装置2602，射频装置2602对终端设备的信息进行处理后经过天线2601发送给终端设备。
基带装置2603可以包括一个或多个处理元件26031，例如，包括一个主控CPU和其它集成电路。此外，该基带装置2603还可以包括存储元件260326和接口26033，存储元件260326用于存储程序和数据；接口26033用于与射频装置2602交互信息，该接口例如为通用公共无线接口(common public radio interface，CPRI)。以上用于网络设备的装置可以位于基带装置2603，例如，以上用于网络设备的装置可以为基带装置2603上的芯片，该芯片包括至少一个处理元件和接口电路，其中处理元件用于执行以上图4至图23所示 流程中接入网设备执行的任一种方法的各个步骤，接口电路用于与其它装置通信。在一种实现中，网络设备实现以上图4至图23所示的方法中各个步骤的单元可以通过处理元件调度程序的形式实现，例如用于网络设备的装置包括处理元件和存储元件，处理元件调用存储元件存储的程序，以执行以上图4至图23方法实施例中由接入网络设备执行的方法。存储元件可以为处理元件处于同一芯片上的存储元件，即片内存储元件，也可以为与处理元件处于不同芯片上的存储元件，即片外存储元件。
在另一种实现中，网络设备实现以上图4至图23方法中各个步骤的单元可以是被配置成一个或多个处理元件，这些处理元件设置于基带装置上，这里的处理元件可以为集成电路，例如：一个或多个ASIC，或，一个或多个DSP，或，一个或者多个FPGA，或者这些类集成电路的组合。这些集成电路可以集成在一起，构成芯片。
网络设备实现以上方法中各个步骤的单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现，例如，基带装置包括该SOC芯片，用于实现以上图4至图23所示的方法。该芯片内可以集成至少一个处理元件和存储元件，由处理元件调用存储元件的存储的程序的形式实现以上接入网设备执行的方法；或者，该芯片内可以集成至少一个集成电路，用于实现以上接入网设备执行的方法；或者，可以结合以上实现方式，部分单元的功能通过处理元件调用程序的形式实现，部分单元的功能通过集成电路的形式实现。
可见，以上用于网络设备的装置可以包括至少一个处理元件和接口电路，其中至少一个处理元件用于执行以上图4至图23所示实施例所提供的任一种接入网设备执行的方法。处理元件可以以第一种方式：即调用存储元件存储的程序的方式执行接入网设备执行的部分或全部步骤；也可以以第二种方式：即通过处理器元件中的硬件的集成逻辑电路结合指令的方式执行接入网设备执行的部分或全部步骤；当然，也可以结合第一种方式和第二种方式执行以上网络设备执行的部分或全部步骤。
这里的处理元件同以上描述，可以是通用处理器，例如CPU，还可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个ASIC，或，一个或多个微处理器DSP，或，一个或者多个FPGA等，或这些集成电路形式中至少两种的组合。存储元件可以是一个存储器，也可以是多个存储元件的统称。
如图26所示，本申请实施例提供的网络设备的结构示意图之二，包括处理器2710，存储器2720，和接口2730，处理器2710、存储器2720和接口2730信号连接。所述网络设备可以为以上图4至图23所示流程中的接入网设备，用于实现以上方法实施例中图4至图23所示的操作。
图24所示的装置2500可位于该网络设备中，且各个单元的功能可以通过处理器2710调用存储器2720中存储的程序来实现。即，图24所示的装置2500可以包括存储器和处理器，存储器用于存储程序，该程序被处理器调用，以执行以上图4至图23方法实施例中的方法。这里的处理器可以是一种具有信号的处理能力的集成电路，例如CPU。或者图25所示的各个单元的功能可以通过配置成实施以上图4至图23方法的一个或多个集成电路来实现。例如：一个或多个ASIC，或，一个或多个微处理器DSP，或，一个或者多个FPGA等，或这些集成电路形式中至少两种的组合。或者，可以结合以上实现方式。
如图27所示，为本申请实施例提供的终端设备的结构示意图，其可以为以上图4至图23所示实施例中的终端设备，用于实现以上图4至图23所示实施例中终端设备的操作。如图27所示，该终端设备包括：天线2810、射频装置2820、信号处理部分2830。天线2810与射频装置2820连接。在下行方向上，射频装置2820通过天线2810接收网络设备发送的信息，将网络设备发送的信息发送给信号处理部分2830进行处理。在上行方向上，信号处理部分2830对终端设备的信息进行处理，并发送给射频装置2820，射频装置2820对终端设备的信息进行处理后经过天线2810发送给网络设备。
信号处理部分2830可以包括调制解调子系统，用于实现对数据各通信协议层的处理；还可以包括中央处理子系统，用于实现对终端设备操作系统以及应用层的处理；此外，还可以包括其它子系统，例如多媒体子系统，周边子系统等，其中多媒体子系统用于实现对终端设备相机，屏幕显示等的控制，周边子系统用于实现与其它设备的连接。调制解调子系统可以为单独设置的芯片。可选的，以上用于终端设备的装置可以位于该调制解调子系统。
调制解调子系统可以包括一个或多个处理元件2831，例如，包括一个主控CPU和其它集成电路。此外，该调制解调子系统还可以包括存储元件2832和接口电路2833。存储元件2832用于存储数据和程序，但用于执行以上图4至图23所示方法中终端设备所执行的方法的程序可能不存储于该存储元件2832中，而是存储于调制解调子系统之外的存储器中，使用时调制解调子系统加载使用。接口电路2833用于与其它子系统通信。以上用于终端设备的装置可以位于调制解调子系统，该调制解调子系统可以通过芯片实现，该芯片包括至少一个处理元件和接口电路，其中处理元件用于执行以上图4至图23所示方法终端设备执行的任一种方法的各个步骤，接口电路用于与其它装置通信。在一种实现中，终端设备实现以上方法中各个步骤的单元可以通过处理元件调度程序的形式实现，例如用于终端设备的装置包括处理元件和存储元件，处理元件调用存储元件存储的程序，以执行以上图4至图23所示方法实施例中终端设备执行的方法。存储元件可以为处理元件处于同一芯片上的存储元件，即片内存储元件。
在另一种实现中，用于执行以上图4至图23所示方法中终端设备所执行的方法的程序可以在与处理元件处于不同芯片上的存储元件，即片外存储元件。此时，处理元件从片外存储元件调用或加载程序于片内存储元件上，以调用并执行以上图4至图23所示方法实施例中终端设备执行的方法。
在又一种实现中，终端设备实现以上图4至图23所示方法中各个步骤的单元可以是被配置成一个或多个处理元件，这些处理元件设置于调制解调子系统上，这里的处理元件可以为集成电路，例如：一个或多个ASIC，或，一个或多个DSP，或，一个或者多个FPGA，或者这些类集成电路的组合。这些集成电路可以集成在一起，构成芯片。
终端设备实现以上图4至图23所示方法中各个步骤的单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现，该SOC芯片，用于实现以上图4至图23所示方法。该芯片内可以集成至少一个处理元件和存储元件，由处理元件调用存储元件的存储的程序的形式实现以上终端设备执行的方法；或者，该芯片内可以集成至少一个集成电路，用于实现以上图4至图23所示流程中终端设备执行的方法；或者，可以结合以上实现方式，部分单元的功能通过处理元件调用程序的形式实现，部分单元的功能通过集成电路的形式实现。
可见，以上用于终端设备的装置可以包括至少一个处理元件和接口电路，其中至少一个处理元件用于执行以上图4至图23所示方法实施例所提供的任一种终端设备执行的方法。处理元件可以以第一种方式：即调用存储元件存储的程序的方式执行终端设备执行的部分或全部步骤；也可以以第二种方式：即通过处理器元件中的硬件的集成逻辑电路结合指令的方式执行终端设备执行的部分或全部步骤；当然，也可以结合第一种方式和第二种方式执行终端设备执行的部分或全部步骤。
这里的处理元件同以上描述，可以是通用处理器，例如CPU，还可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个ASIC，或，一个或多个微处理器DSP，或，一个或者多个FPGA等，或这些集成电路形式中至少两种的组合。存储元件可以是一个存储器，也可以是多个存储元件的统称。
进一步，本申请实施例还提供一种装置，包括用于实现上述图8、图17、图19或图21所述流程中各步骤的单元。或者，该装置包括至少一个处理器和接口电路，所述至少一个处理器用于通过所述接口与其它装置通信，并执上述图8、图17、图19或图21所示流程中各步骤的方法。或者，该装置包括处理器，用于调用存储器存储的程序，以执行上述图8、图17、图19或图21所示流程中各步骤的方法。本申请实施例还提供一种计算机可读存储介质，包括程序，当所述程序被处理器运行时，图8、图17、图19或图21所示流程中各步骤的方法被执行。
在本申请实施例中，处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
在本申请实施例中，存储器可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)。存储器是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。
本申请实施例提供的方法中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、用户设备或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，简称DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机可以存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(digital video disc，简称DVD))、或者 半导体介质(例如,SSD)等。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。
本申请实施例中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，可以表示：a,b,c,a和b,a和c,b和c,或a和b和c，其中a,b,c可以是单个，也可以是多个。

Claims (44)

  1. 一种通信方法，其特征在于，包括：
    终端设备接收来自接入网设备的寻呼消息；
    所述终端设备利用第一物理上行共享信道PUSCH资源，向所述接入网设备发送寻呼响应；
    其中，所述第一PUSCH资源是预配置的，或者，所述第一PUSCH资源是根据寻呼消息确定的，或者，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，所述寻呼响应中携带有所述终端设备的标识和身份验证信息，所述终端设备的标识和身份验证信息用于所述终端设备的身份验证。
  2. 如权利要求1所述的方法，其特征在于，所述第一PUSCH资源是预配置的，所述方法还包括：
    所述终端设备接收来自所述接入网设备的第一配置信息，所述第一配置信息用于配置所述第一PUSCH资源；
    所述终端设备根据所述第一配置信息，确定所述第一PUSCH资源。
  3. 如权利要求1所述的方法，其特征在于，所述第一PUSCH资源是根据所述寻呼消息确定的，所述寻呼消息中携带有所述第一PUSCH资源的配置信息，所述方法还包括：
    所述终端设备根据所述寻呼消息中携带的所述第一PUSCH资源的配置信息，确定所述第一PUSCH资源。
  4. 如权利要求1所述的方法，其特征在于，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，所述方法还包括：
    所述终端设备接收来自所述接入网设备的第二配置信息，所述第二配置信息用于配置至少1个PUSCH资源；
    所述终端设备根据所述寻呼消息，确定所述第一PUSCH资源。
  5. 如权利要求4所述的方法，其特征在于，所述至少1个PUSCH资源中每个PUSCH资源对应一个索引，所述寻呼消息中携带有第一索引，所述终端设备根据所述寻呼消息，确定所述第一PUSCH资源，包括：
    所述终端设备根据所述第一索引，在所述至少一个PUSCH资源中，选择所述第一PUSCH资源，所述第一PUSCH资源对应于第一索引。
  6. 如权利要求4所述的方法，其特征在于，所述至少1个PUSCH资源中每个PUSCH资源对应一终端设备标识，所述寻呼消息中携带有被寻呼终端设备的标识，所述终端设备根据所述寻呼消息，确定所述第一PUSCH资源，包括
    所述终端设备根据所述寻呼消息中携带的被寻呼终端设备的标识，在所述至少一个PUSCH资源中，选择所述第一PUSCH资源，所述第一PUSCH资源对应于所述被寻呼终端设备的标识。
  7. 如权利要求4所述的方法，其特征在于，所述至少1个PUSCH资源中每个PUSCH对应一随机接入前导码标识，所述寻呼消息中携带有所述第一随机接入前导码标识，所述终端设备根据所述寻呼消息，确定所述第一PUSCH资源，包括：
    所述终端设备根据所述第一随机接入前导码标识，在所述至少一个PUSCH资源中，选择所述第一PUSCH资源，所述第一PUSCH资源所对应于所述第一随机接入前导码标识。
  8. 如权利要求1所述的方法，其特征在于，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，所述方法还包括：
    所述终端设备接收来自所述接入网设备的第三配置信息，所述第三配置信息用于配置所述第一PUSCH资源中时频域资源的部分；
    所述寻呼消息中携带有所述第一PUSCH资源中时频域资源的剩余部分，所述终端设备根据所述寻呼消息，确定所述第一PUSCH资源中时频域资源的剩余部分；
    所述终端设备根据所述第一PUSCH资源中时频域资源的部分和所述第一PUSCH资源中时频域资源的剩余部分，确定所述第一PUSCH资源。
  9. 如权利要求1所述的方法，其特征在于，所述第一PUSCH资源是预配置的，所述方法还包括：
    所述终端设备接收来自所述接入网设备的第四配置信息，所述第四配置信息用于配置随机接入前导码、所述随机接入前导码的时频域资源和所述第一PUSCH资源；
    所述终端设备根据所述第四配置信息，确定所述第一PUSCH资源。
  10. 如权利要求1所述的方法，其特征在于，所述第一PUSCH资源是根据所述寻呼消息确定的，所述寻呼消息中携带有第五配置信息，所述第五配置信息用于配置随机接入前导码、所述随机接入前导码的时频域资源和所述第一PUSCH资源，所述方法还包括：
    所述终端设备根据所述寻呼消息中携带的第五配置信息，确定所述第一PUSCH资源。
  11. 如权利要求1所述的方法，其特征在于，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，所述方法还包括：
    所述终端设备接收来自所述接入网设备的第六配置信息，所述第六配置信息用于配置随机接入前导码、所述随机接入前导码的时频域资源和所述第一PUSCH资源中时频域资源中的部分；
    所述寻呼消息中携带有所述第一PUSCH资源中时频域资源的剩余部分，所述终端设备根据所述寻呼消息，确定所述第一PUSCH资源中时频资源的剩余部分；
    所述终端设备根据所述第一PUSCH资源中时频域资源中的部分和所述第一PUSCH资源中时频域资源的剩余部分，确定所述第一PUSCH资源。
  12. 如权利要求1所述的方法，其特征在于，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，所述方法还包括：
    所述终端设备接收来自所述接入网设备的第七配置信息，所述第七配置信息用于配置至少一个随机接入配置，每个随机接入配置包括：随机接入前导码、所述随机接入前导码的时频域资源和所述PUSCH的时频域资源；
    所述终端设备根据所述寻呼消息，从所述至少一个随机接入配置中，确定第一随机接入配置，所述第一随机接入配置中包括所述第一PUSCH资源；
    所述终端设备根据所述第一随机接入配置，确定所述第一PUSCH资源。
  13. 如权利要求12所述的方法，其特征在于，所述至少一个随机接入配置中每个随机接入配置对应一索引，所述寻呼消息中携带有第一索引，所述终端设备根据所述寻呼消息，从所述至少一个随机接入配置中，确定第一随机接入配置，包括：
    所述终端设备根据所述第一索引，从所述至少一个随机接入配置中，选择第一随机接入配置，所述第一随机接入配置对应于所述第一索引。
  14. 如权利要求12所述的方法，其特征在于，所述至少一个随机接入配置中每个随 机接入配置对应一终端设备标识，所述寻呼消息中携带有被寻呼终端设备的标识，所述终端设备根据所述寻呼消息，从所述至少一个随机接入配置中，确定第一随机接入配置，包括：
    所述终端设备根据所述被寻呼终端设备的标识，从所述至少一个随机接入配置中，选择所述第一随机接入配置，所述第一随机接入配置对应于所述被寻呼终端设备的标识。
  15. 如权利要求12所述的方法，其特征在于，所述至少一个随机接入配置中每个随机接入配置对应一随机接入前导码标识，所述寻呼消息中携带有第一随机接入前导码标识，所述终端设备根据所述寻呼消息，从所述至少一个随机接入配置中，确定第一随机接入配置，包括：
    所述终端设备根据所述第一随机接入前导码标识，从所述至少一个随机接入配置中，选择所述第一随机接入配置，所述第一随机接入配置所对应于所述第一随机接入前导码标识。
  16. 如权利要求1至15任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备利用所述随机接入前导码的时频域资源，向所述接入网设备发送所述随机接入前导码；或者，
    在定时提前量TA无效时，所述终端设备利用随机接入前导码的时频域资源，向所述接入网设备发送所述随机接入前导码。
  17. 如权利要求16所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收来自所述接入网设备的随机接入前导码的响应消息，所述随机接入前导码的响应消息中包括下行数据。
  18. 如权利要求1至17任一项所述的方法，其特征在于，所述寻呼消息中包括下行数据早传指示或随机接入前导码标识，所述终端设备利用所述第一PUSCH资源，向所述接入网设备发送寻呼响应，包括：
    所述终端设备根据所述下行数据早传指示或所述随机接入前导码标识，在所述第一PUSCH资源向所述接入网设备发送寻呼响应。
  19. 如权利要求1至18任一项所述的方法，其特征在于，所述寻呼响应为非接入层NAS消息，所述终端设备的身份验证信息是根据所述终端设备的NAS安全密钥所生成的。
  20. 如权利要求1至18任一项所述的方法，其特征在于，所述寻呼响应为无线资源控制RRC消息，所述终端设备的身份验证信息是根据以下参数中一项或多项生成的：
    所述终端设备的接入层密钥、所述终端设备源小区的物理小区标识、所述终端设备目标小区的物理小区标识、源小区无线网络临时标识C-RNTI。
  21. 一种通信方法，其特征在于，包括：
    接入网设备向终端设备发送寻呼消息；
    所述接入网设备在第一物理上行共享信道PUSCH资源上，接收来自所述终端设备的寻呼响应；
    其中，所述第一PUSCH资源是预配置的，或者，所述第一PUSCH资源是根据寻呼消息确定的，或者，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，所述寻呼响应中携带有所述终端设备的标识和身份验证信息，所述终端设备的标识和身份验证信息用于所述终端设备的身份验证。
  22. 如权利要求21所述的方法，其特征在于，所述第一PUSCH资源是预配置的，所 述方法还包括：
    所述接入网设备向所述终端设备发送第一配置信息，所述第一配置信息用于配置所述第一PUSCH资源。
  23. 如权利要求21所述的方法，其特征在于，所述第一PUSCH资源是根据所述寻呼消息确定的，所述寻呼消息中携带有所述第一PUSCH资源的配置信息。
  24. 如权利要求21所述的方法，其特征在于，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，所述方法还包括：
    所述接入网设备向所述终端设备发送第二配置信息，所述第二配置信息用于配置至少1个PUSCH资源。
  25. 如权利要求24所述的方法，其特征在于，所述至少1个PUSCH资源中每个PUSCH资源对应一个索引，所述寻呼消息中携带有第一索引，所述第一索引对应于所述第一PUSCH资源。
  26. 如权利要求24所述的方法，其特征在于，所述至少1个PUSCH资源中每个PUSCH资源对应一终端设备标识，所述寻呼消息中携带有被寻呼终端设备的标识，所述被寻呼终端设备的标识对应于所述第一PUSCH资源。
  27. 如权利要求24所述的方法，其特征在于，所述至少1个PUSCH资源中每个PUSCH对应一随机接入前导码标识，所述寻呼消息中携带有所述第一随机接入前导码标识，所述第一随机接入前导码标识对应于所述第一PUSCH资源。
  28. 如权利要求21所述的方法，其特征在于，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，所述方法还包括：
    所述接入网设备向所述终端设备发送第三配置信息，所述第三配置信息用于配置所述第一PUSCH资源中时频域资源的部分；
    其中，所述寻呼消息中携带有所述第一PUSCH资源中时频域资源的剩余部分，所述第一PUSCH资源包括所述第一PUSCH资源中时频域资源的部分和所述第一PUSCH资源中时频域资源的剩余的部分。
  29. 如权利要求21所述的方法，其特征在于，所述第一PUSCH资源是预配置的，所述方法还包括：
    所述接入网设备向所述终端设备发送第四配置信息，所述第四配置信息用于配置随机接入前导码、所述随机接入前导码的时频域资源和所述第一PUSCH资源。
  30. 如权利要求21所述的方法，其特征在于，所述第一PUSCH资源是根据所述寻呼消息确定的，所述寻呼消息中携带有第五配置信息，所述第五配置信息用于配置随机接入前导码、所述随机接入前导码的时频域资源和所述第一PUSCH资源。
  31. 如权利要求21所述的方法，其特征在于，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，所述方法还包括：
    所述接入网设备向所述终端设力求发送第六配置信息，所述第六配置信息用于配置随机接入前导码、所述随机接入前导码的时频域资源和所述第一PUSCH资源中时频域资源的部分；
    其中，所述寻呼消息中携带有所述第一PUSCH资源中时频域资源的剩余部分，所述第一PUSCH资源包括所述第一PUSCH资源中时频域资源的部分和所述第一PUSCH资源中时频域资源的剩余部分。
  32. 如权利要求21所述的方法，其特征在于，所述第一PUSCH资源是根据预配置和所述寻呼消息确定的，所述方法还包括：
    所述接入网设备向所述终端设备发送第七配置信息，所述第七配置信息用于配置至少一个随机接入配置，所述每个随机接入配置包括：随机接入前导码、所述随机接入前导码的时频域资源和所述PUSCH的时频域资源。
  33. 如权利要求32所述的方法，其特征在于，所述至少一个随机接入配置中每个随机接入配置对应一索引，所述寻呼消息中携带有第一索引，所述第一索引对应于所述第一随机接入配置，所述第一随机接入配置中包括所述第一PUSCH资源。
  34. 如权利要求32所述的方法，其特征在于，所述至少一个随机接入配置中每个随机接入配置对应一终端设备标识，所述寻呼消息中携带有被寻呼终端设备的标识，所述被寻呼终端设备的标识对应于所述第一随机接入配置，所述第一随机接入配置中包括所述第一PUSCH资源。
  35. 如权利要求32所述的方法，其特征在于，所述至少一个随机接入配置中每个随机接入配置对应于一随机接入前导码标识，所述寻呼消息中携带有第一随机接入前导码标识，所述第一随机接入前导码标识对应于所述第一随机接入配置，所述第一随机接入配置中包括所述第一PUSCH资源。
  36. 如权利要求21至35任一项所述的方法，其特征在于，所述方法还包括：
    所述接入网设备利用所述随机接入前导码的时频域资源，接收来自终端设备的随机接入前导码。
  37. 如权利要求36所述的方法，其特征在于，所述方法还包括：
    所述接入网设备向所述终端设备发送随机接入前导码的响应消息，所述随机接入前导码的响应消息中包括下行数据。
  38. 如权利要求21至37任一项所述的方法，其特征在于，所述寻呼消息中包括下行数据早传指示或随机接入前导码标识，所述接入网设备利用第一PUSCH资源，接入来自终端设备的寻呼响应，包括：
    所述接入网设备根据所述下行数据早传指示或所述随机接入前导码标识，在所述第一PUSCH资源上接收来自所述终端设备的寻呼响应。
  39. 如权利要求21至38任一项所述的方法，其特征在于，所述寻呼响应为非接入层NAS消息，所述终端设备的身份验证信息是根据所述终端设备的NAS安全密钥所生成的。
  40. 如权利要求21至38任一项所述的方法，其特征在于，所述寻呼响应为无线资源控制RRC消息，所述终端设备的身份验证信息是根据以下参数中一项或多项生成的：
    所述终端设备的接入层密钥、所述终端设备源小区的物理小区标识、所述终端设备目标小区的物理小区标识、源小区无线网络临时标识C-RNTI。
  41. 一种装置，其特征在于，包括用于执行如权利要求1至40任一项所述的方法的各步骤的单元。
  42. 一种装置，其特征在于，包括至少一个处理器和接口电路，其中，所述至少一个处理器用于通过所述接口电路与其它装置通信，并执行如权利要求1至40任一项所述的方法。
  43. 一种装置，其特征在于，包括处理器，用于调用存储器中存储的程序，以执行如权利要求1至40任一项所述的方法。
  44. 一种计算机可读存储介质，其特征在于，包括程序，当所述程序被处理器运行时，如权利要求1至40任一项所述的方法被执行。
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