Data transmission method and apparatus, information determination method and apparatus, and storage medium

Abstract

To provide a data transmission method and device, an information determination method and device, and a storage medium.SOLUTION: There are provided a data transmission method and device, an information determination method and device, and a storage medium. The data transmission method includes sending a paging message carrying first indication information to a second communication node, the first indication information is used to indicate whether the second communication node is triggered to perform a mobile terminal-early data transmission (MT-EDT) procedure, and receiving a radio resource control (RRC) message carrying second indication information and sent by the second communication node.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This application claims the priority of Chinese Patent Application No. 201910936293.7, filed with the China National Intellectual Property Administration (CNIPA) on September 29, 2019, which is incorporated herein by reference in its entirety.

[0002] (Technical Field) This application relates to communications, for example, data transmission methods and apparatuses, information determination methods and apparatuses, and storage media.

Background Art

[0003] Mobile Incoming call - In the physical random access channel (PRACH) process of mobile-terminated early data transmission (MT-EDT), after the base station completes downlink data transmission using the fourth radio resource control (RRC) signaling, the terminal can be released to the idle state. If the terminal has uplink data to transmit, the terminal needs to maintain / enter the connected state and complete the transmission of the uplink data.

[0004] In the non-EDT PRACH process, when only a small number of small data packets need to be transmitted, such small data packets can be transmitted through one medium access control (MAC) control element (CE). After the transmission is completed, it is only necessary for the core network to immediately release the context information of the terminal. Therefore, after the data transmission is completed, the connection state of the network cannot be automatically switched according to the service requirements.

Summary of the Invention

Problems to be Solved by the Invention

[0005] Embodiments of the present application provide a data transmission method and apparatus, an information determination method and apparatus, and a storage medium, and the connection state of the network can be automatically switched according to service requirements after data transmission is completed.

Means for Solving the Problem

[0006] Embodiments of the present application provide a data transmission method. The method is applied to a first communication node and includes the following.

[0007] A paging message carrying first indication information is sent to a second communication node. The first indication information is used to indicate whether the second communication node is triggered to perform a Mobile Incoming call - Early Data Transmission (MT-EDT) procedure.

[0008] A Radio Resource Control (RRC) message carrying second indication information and sent by the second communication node is received.

[0009] Embodiments of the present application provide a data transmission method. The method is applied to a first communication node and includes the following.

[0010] A paging message carrying third indication information and sent by a third communication node is received. The third indication information includes an access network type indication and a core network type indication.

[0011] Embodiments of the present application provide a data transmission method. The method is applied to a second communication node and includes the following.

[0012] A paging message carrying first indication information and sent by a first communication node is received. The first indication information is used to indicate whether the second communication node is triggered to perform the MT-EDT procedure.

[0013] An RRC message carrying the second indication information is transmitted to the first communication node.

[0014] Embodiments of the present application provide a data transmission method. The method is applied to a second communication node and includes the following.

[0015] A paging message carrying third indication information and transmitted by a first communication node is received. The third indication information includes an access network type indication and a core network type indication.

[0016] Embodiments of the present application provide an information determination method. The method includes the following.

[0017] A corresponding WUS group resource index is determined for a WUS group index based on a preset rule and according to the number of radio frames, the radio frame index, the superframe index, and the number of WUS group resources.

[0018] Embodiments of the present application provide a data transmission device. The device is applied to a first communication node and includes a first transmission module and a first reception module.

[0019] The first transmission module is configured to transmit a paging message carrying first indication information to a second communication node. The first indication information is used to indicate whether the second communication node is triggered to perform an MT-EDT procedure.

[0020] The first reception module is configured to receive an RRC message carrying second indication information and transmitted by a second communication node. The RRC message includes at least one of the following: the second indication information or a new resume cause value.

[0021] Embodiments of the present application provide a data transmission device. The device is applied to a first communication node and includes a second transmission module.

[0022] The second transmission module is configured to transmit a paging message carrying third indication information to a second communication node. The third indication information includes an access network type indication and a core network type indication.

[0023] Embodiments of the present application provide a data transmission device. The device is applied to a second communication node and includes a second receiving module and a third transmission module.

[0024] The second receiving module is configured to receive a paging message carrying first indication information and transmitted by a first communication node. The first indication information is used to indicate whether the second communication node is triggered to perform an MT-EDT procedure.

[0025] The third transmission module is configured to transmit an RRC message carrying second indication information to the first communication node.

[0026] Embodiments of the present application provide a data transmission device. The device is applied to a second communication node and includes a third receiving module.

[0027] The third receiving module is configured to receive a paging message carrying third indication information and transmitted by a first communication node. The third indication information includes an access network type indication and a core network type indication.

[0028] Embodiments of the present application provide an information determination device. The device includes a processor.

[0029] Based on a preset rule and according to the number of radio frames, radio frame index, superframe index, and the number of wake-up signal (WUS) group resources, the processor is configured to determine a corresponding WUS group resource index for the WUS group index.

[0030] Embodiments of the present application provide a storage medium. The storage medium stores a computer program which, when executed by a processor, causes the processor to implement the method in any one of the foregoing embodiments. The present invention provides, for example, the following. (Item 1) A data transmission method applied to a first communication node, the method comprising: transmitting a paging message carrying first indication information to a second communication node, the first indication information being used to indicate whether the second communication node is triggered to perform a Mobile Incoming call - Early Data Transmission (MT-EDT) procedure; and receiving a Radio Resource Control (RRC) message carrying second indication information and transmitted by the second communication node. A method comprising the above. (Item 2) The method according to item 1, wherein the indication method of the second indication information includes one of indication through a cell extension or indication through a cause value extension. (Item 3) Receiving the RRC message transmitted by the second communication node while carrying the second indication information includes: When the second communication node is triggered to perform the MT-EDT procedure, the method according to item 1, further comprising receiving a third message transmitted by the second communication node while carrying the second indication information. (Item 4) The second indication information is used to indicate one of the following: requesting the second communication node to enter a connected state; whether the second communication node needs to transmit uplink data; whether the MT-EDT procedure has ended; whether the second communication node requests the MT-EDT procedure; confirmation response information of the MT-EDT procedure; or the second communication node performs uplink data transmission and does not perform the MT-EDT procedure, according to the method described in item 1, 2, or 3. (Item 5) The second indication information is determined through one of a media access control (MAC) control element (CE) message or an extended RRC message, according to the method described in item 1. (Item 6) When the second indication information is determined through the MAC CE message, the second indication is determined through one of reserved bits of an existing MAC CE message, a new logical channel identifier (LCID) in the MAC sub-header, or indication information of a MAC service data unit (SDU) in the MAC CE, according to the method described in item 5. (Item 7) When the second indication information is determined through the extended RRC message, the second indication information is determined through newly added cell indication information in the extended RRC message, according to the method described in item 5. (Item 8) The third message includes a third message in a conventional physical random access channel (PRACH) process, according to the method described in item 3. (Item 9) A data transmission method applied to a first communication node, the method including transmitting a paging message carrying third indication information to a second communication node, wherein the third indication information includes an access network type indication and a core network type indication. (Item 10) The method according to item 9, wherein the core network type indication includes one of an evolved packet core (EPC) indication or a fifth generation core (5GC) indication. (Item 11) The method according to item 9, wherein the access network type indication includes one of an indication regarding the radio access technology (RAT) in which the paging message is currently being transmitted, a long term evolution (LTE) indication, a narrowband Internet of Things (NB-IoT) indication, an enhanced machine type communication (eMTC) indication, a new radio (NR) indication, a global system for mobile communications (GSM (registered trademark)) indication, or a wireless fidelity (WIFI) indication. (Item 12) When the second communication node is triggered to perform a conventional physical random access channel (PRACH) process, receiving downlink data transmitted by a third communication node, When the transmission method of the downlink data is early data transmission (EDT), further including transmitting an S1 interface message carrying fourth indication information to the third communication node, wherein the fourth indication information includes an EDT indication, the method according to item 9. (Item 13) A data transmission method applied to a second communication node, the method comprising: Receiving a paging message transmitted by a first communication node and carrying first indication information, wherein the first indication information is used to indicate whether the second communication node is triggered to perform a mobile Incoming call - early data transmission (MT-EDT) procedure, and Transmitting a radio resource control (RRC) message carrying second indication information to the first communication node and including. (Item 14) Transmitting the RRC message carrying the second indication information to the first communication node is The method according to item 13, comprising transmitting, to the first communication node, a third message carrying the second instruction information when the second communication node is triggered to perform the MT-EDT procedure. (Item 15) The method according to item 13, further comprising transmitting, to the first communication node, an RRC message carrying fourth instruction information when the second communication node is triggered to perform a conventional physical random access channel (PRACH) process, wherein the fourth instruction information includes an EDT instruction. (Item 16) A data transmission method applied to a second communication node, the method comprising receiving a paging message transmitted by a first communication node and carrying third instruction information. The method, wherein the third instruction information includes an access network type instruction and a core network type instruction. (Item 17) The method according to item 16, wherein the second communication node includes a second communication node of a multi-mode. (Item 18) An information determination method, the method comprising: determining, based on a preset rule and according to the number of radio frames, a radio frame index, a superframe index, and the number of wake-up signal (WUS) group resources, a current resource index of each WUS group corresponding to an original resource index of each WUS group. (Item 19) The calculation formula of the current resource index of each WUS group is: M = mod((A + (SFN_Index + 1024 × H_SFN) / T), K), M represents the current resource index of each of the WUS groups, A represents the original resource index of each of the WUS groups, T represents the number of radio frames included within one discontinuous reception cycle, SFN_Index represents the radio frame index corresponding to the second communication node in the current paging occasion, H_SFN represents the superframe index corresponding to the second communication node in the current paging occasion, K represents the number of the WUS group resources, and mod represents a function regarding the remainder, the method according to item 18. (Item 20) A data transmission device applied to a first communication node, the data transmission device comprising: A first transmission module configured to transmit a paging message carrying first indication information to a second communication node, wherein the first indication information is used to indicate whether the second communication node is triggered to perform a mobile Incoming call - Early data transmission (MT-EDT) procedure, the first transmission module; A first reception module configured to receive a radio resource control (RRC) message that carries second indication information and is transmitted by the second communication node and the data transmission device. (Item 21) A data transmission device applied to a first communication node, the data transmission device comprising a second transmission module configured to transmit a paging message carrying third indication information to a second communication node, wherein the third indication information includes an access network type indication and a core network type indication, the data transmission device. (Item 22) A data transmission device applied to a second communication node, the data transmission device comprising: A second reception module configured to receive a paging message that carries first indication information and is transmitted by a first communication node, wherein the first indication information is used to indicate whether the second communication node is mobileIncoming call A second receiving module used to indicate whether it is triggered to perform an early data transmission (MT-EDT) procedure, and a third transmitting module configured to transmit a radio resource control (RRC) message carrying second indication information to the first communication node A data transmission device comprising: (Item 23) A data transmission device applied to a second communication node, the data transmission device comprising a third receiving module configured to receive a paging message transmitted by a first communication node and carrying third indication information, The third indication information includes an access network type indication and a core network type indication. A data transmission device (Item 24) An information determination device, the information determination device comprising a processor configured to determine a corresponding wake-up signal (WUS) group resource index for a WUS group index based on a preset rule and according to the number of radio frames, a radio frame index, a superframe index, and the number of WUS group resources. An information determination device (Item 25) A storage medium for storing a computer program, the computer program, when executed by a processor, causes the processor to perform the data transmission method according to any one of Items 1-17, or perform the information determination method according to any one of Items 18-19. A storage medium

Brief Description of the Drawings

[0031]

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DETAILED DESCRIPTION OF THE INVENTION

[0032] Embodiments of the present application will be described hereinafter in conjunction with the drawings. If there is no contradiction, the embodiments and their features described in this specification can be combined with each other.

[0033] In the Release 15 (R15) phase, NarrowBand Internet of Things (NB-IoT) / Enhanced Machine Type Communication (eMTC) supports efficient transmission of uplink small data. That is, the transmission is implemented through the Mobile Original - Early Data Transmission (MO-EDT) procedure. The terminal completes the transmission of uplink data in the random access procedure of Early Data Transmission (EDT). For example, the uplink data packet is carried within the third signaling message. In this random access process, the contention ends, and the acknowledgment of the uplink data transmission is completed. In this case, the terminal can terminate the random access procedure.

[0034] In the R16 phase, a method for supporting efficient transmission of downlink small data is being considered. That is, the transmission of downlink data in the random access procedure is implemented through the Mobile Incoming call - Early Data Transmission (MT-EDT) procedure. After receiving the paging message issued by the core network, the base station determines whether to trigger the MT-EDT procedure. When the procedure needs to be triggered, the base station carries non-competitive random access resources in the paging message. After receiving the first random access signaling message transmitted by the terminal, the base station first completes the identification of the terminal, and then may carry the downlink data packet in the second signaling message. Then, the terminal transmits the third signaling message to complete the acknowledgment of the downlink data packet.

[0035] After the transmission and acknowledgment of a single data packet are completed through either MO-EDT or MT-EDT, the random access procedure ends, and the terminal is released to the idle state. However, in order to further perform data transmission, after the EDT procedure is carried out, it may be necessary to enter the connected state for data transmission and reception.

[0036] FIG. 1 is a flowchart of a data transmission method according to an embodiment of the present application. This embodiment is implemented by a first communication node. In the embodiment, the first communication node is a base station.

[0037] As shown in FIG. 1, the data transmission method provided in this embodiment includes S110-S120.

[0038] In S110, a paging message carrying first indication information is transmitted to a second communication node.

[0039] In the embodiment, the first indication information is used to indicate whether the second communication node is triggered to perform the MT-EDT procedure. In the embodiment, the second communication node may be a user equipment (UE).

[0040] In S120, a radio resource control (RRC) message carrying second indication information and transmitted by the second communication node is received.

[0041] In one embodiment, the indication method of the second indication information includes one of the following: indication through a cell extension, or indication through a cause value extension. In one embodiment, after receiving downlink data issued by a third communication node, the first communication node transmits a paging message carrying the first indication information to the second communication node, indicating whether the second communication node is triggered to perform the MT-EDT procedure. When the second communication node performs the MT-EDT procedure, the first communication node receives an RRC message transmitted by the second communication node and indicating whether to enter the connected state through the second indication information in the RRC message.

[0042] In one embodiment, the reception of an RRC message that carries the second indication information and is transmitted by the second communication node includes the reception of a third message that carries the second indication information and is transmitted by the second communication node when the second communication node is triggered to perform the MT-EDT procedure.

[0043] In an embodiment, the RRC message includes an original resume cause value. After receiving the RRC message transmitted by the UE, the base station cannot determine whether the UE can completely transmit the uplink service data within a preset time based on the original resume cause value in the RRC. The preset time refers to the time when the UE transmits the RRC message to the core network. In one embodiment, a new resume cause value is introduced into the RRC message. The new resume cause value determines whether the base station sends an instruction to release the UE's context information to the core network. When the size of the uplink service data transmitted by the UE to the base station is not large (i.e., it is a small data packet), or when the uplink service data is not uploaded, the RRC message carries the original resume cause value. When the size of the uplink service data transmitted by the UE to the base station is large, the RRC message carries the new resume cause value. That is, after receiving the uplink service data transmitted by the base station, the core network does not release the UE's context information. In one embodiment, the second instruction information is used to indicate one of the following: requesting that the second communication node enters the connected state, whether the second communication node needs to transmit uplink data, whether the MT-EDT procedure is completed, whether the second communication node requests the MT-EDT procedure, the confirmation response information of the MT-EDT procedure, or the second communication node performs uplink data transmission and does not perform the MT-EDT procedure. A small data packet refers to uplink data whose data size can be reused within one RRC message for transmission.

[0044] In one embodiment, the base station broadcasts 1-bit indication signaling within a System Information Block (SIB) message. The indication signaling is used to indicate whether the UE is allowed to perform an operation. The operations that are allowed include UE requested operations or UE directed operations. As an example, UE requested operations include, but are not limited to, the UE's request to enter the connected state, the operation of whether the UE performs uplink data transmission, the operation of whether the UE terminates the MT-EDT procedure, the UE's request for the MT-EDT procedure, the acknowledgement response information for the MT-EDT procedure, or the operation where the UE performs uplink data transmission and does not perform the MT-EDT procedure.

[0045] In one embodiment, in the process of performing the MT-EDT procedure, it indicates entering the connected state. In the embodiment, the data transmission method is described by way of example where the first communication node is a base station and the second communication node is a user equipment. After receiving a paging message that carries first indication information and is transmitted by the core network, the base station determines whether to trigger the MT-EDT procedure. If it is determined that the MT-EDT procedure needs to be triggered, the base station issues MT-EDT service indication information through the paging message.

[0046] In the process of the user equipment performing the MT-EDT procedure, the user equipment uses the third message to carry the second indication information in the PRACH procedure. The second indication information is used to indicate that the UE requests to enter the connected state. Alternatively, the second indication information is used to indicate whether the UE performs uplink data transmission. Alternatively, the second indication information is used to indicate whether the MT-EDT procedure is terminated. Alternatively, the second indication information is used to indicate that the UE requests the MT-EDT procedure. Alternatively, the second indication information is used to indicate the acknowledgement response information of the MT-EDT procedure. Alternatively, the second indication information is used to indicate that uplink data transmission is performed and the MT-EDT procedure is not performed.

[0047] When the UE prepares to start the third message and there is a need for an uplink data packet to be transmitted, the UE uses the third message to carry the acknowledgement information of the second indication information. That is, the second indication information is used to indicate that the UE requests to enter the connected state; alternatively, the second indication information is used to indicate that the UE performs uplink data transmission; alternatively, the second indication information is used to indicate that the MT-EDT procedure is terminated; alternatively, the second indication information is used to indicate that uplink data transmission is performed and the MT-EDT procedure is not performed.

[0048] According to the indication conditions of the second indication information of the UE, after the base station transmits the fourth message, it determines whether to end the procedure. That is, when the UE transmits the confirmation information of the second indication information, the base station continues to maintain the connection state with the UE after transmitting the fourth message. Further, it is determined whether the EDT information is indicated on the S1 interface. That is, when the UE transmits the confirmation information of the second indication information, the information on the S1 interface does not include the EDT indication information; otherwise, the information on the S1 interface includes the EDT indication information.

[0049] In one embodiment, FIG. 2 is a schematic diagram illustrating the interaction of one type of data transmission according to the embodiment of the present application. As shown in FIG. 2, the data transmission interaction procedure in this embodiment includes S210 - S280.

[0050] In S210, a paging message is issued.

[0051] In S220, a paging message carrying the first indication information is transmitted.

[0052] In S230, the first message (Msg1) is fed back.

[0053] In S240, the second message (Msg2) is transmitted.

[0054] In S250, a third message (Msg3) that carries the second indication information and indicates entering the connection state is transmitted.

[0055] In S260, a UE initialization message is uploaded.

[0056] In S270, a fourth message (Msg4) that carries downlink data is transmitted.

[0057] In S280, uplink service data is transmitted.

[0058] In an embodiment, the UE transmits confirmation information for carrying the second indication information to the base station. That is, the confirmation information of the second indication information is carried in the third message and indicates entering the connected state. After the base station completes the transmission of Msg4, the uplink service data is transmitted between the UE and the base station.

[0059] In one embodiment, FIG. 3 is a schematic diagram illustrating the interaction of another type of data transmission according to the embodiment of the present application. As shown in FIG. 3, the interaction procedure of data transmission in this embodiment includes S310-S370.

[0060] In S310, a paging message is issued.

[0061] In S320, a paging message for carrying the first indication information is transmitted.

[0062] In S330, the first message is fed back.

[0063] In S340, the second message is transmitted.

[0064] In S350, the third message is transmitted.

[0065] In S360, a UE initialization message for carrying EDT indication information is uploaded.

[0066] In S370, a fourth message for carrying downlink data is transmitted.

[0067] In an embodiment, the second indication information is not carried in the third message transmitted by the UE to the base station. Then, the EDT indication information is carried in the UE initialization message transmitted by the base station to the core network and indicates releasing the context of the UE. That is, after the base station completes the transmission of the fourth message, the connection state is released and enters the idle state.

[0068] In one embodiment, the method for determining the second indication information includes one of the following methods: a Media Access Control (MAC) control element (CE) message, or an extended RRC message.

[0069] In one embodiment, when the second indication information is determined through a MAC CE message, the method for determining the second indication information includes one of the following methods: reserved bits of an existing MAC CE message, a new logical channel identifier (LCID) in the MAC subheader, or indication information of a MAC service data unit (SDU) in the MAC CE.

[0070] In an embodiment, in the process of performing the MT-EDT procedure, the second indication information includes two methods. One method is through a MAC CE. The other method is through extended RRC signaling. That is, 1-bit indication information is directly carried in the RRC message.

[0071] In one embodiment, a MAC CE including one idle bit in an existing MAC CE message is used to indicate whether to enter the connected state. As an example, when the idle bit is 0, it indicates not to enter the connected state, and when the idle bit is 1, it indicates to enter the connected state. In one embodiment, the method of introducing a new MAC CE through a MAC CE message includes using the subheader of the MAC CE for reporting (for example, using one idle bit in the subheader for reporting) to introduce a new logical channel identifier (LCID) (that is, selecting one LCID from the reserved LCIDs for use). In one embodiment, the indication is performed through a service data unit (SDU) in the MAC CE. The idle bit in the MAC CE header can be an R bit, that is, a reserved bit.

[0072] FIG. 4 is a schematic diagram illustrating the structure of a MAC CE according to an embodiment of the present application. As shown in FIG. 4, the indication of the connection state can be implemented through the MAC SDU in the MAC CE message.

[0073] Table 1 is a table illustrating the format of the sub-header in the MAC CE message. As shown in Table 1, the sub-header in the MAC CE message includes 8 bits. The logical channel identifier (LCID) occupies 5 bits. The reserved LCID can be one of 01110, 01111, or 10001.

Table 1

[0074] The sub-header in the MAC CE is an 8-bit message including two 1-bit reserved bits (R), one 1-bit extension bit, and 5-bit LCID. In one embodiment, the second indication information is determined through the LCID.

[0075] In one embodiment, when the second indication information is determined through the extended RRC message, the determination method of the second indication information includes the newly added cell indication information in the extended RRC message. In an embodiment, the cell indication information is added into the RRC message through the extended RRC message so as to indicate whether to enter the connected state. As an example, when the cell indication information is 1, it indicates entering the connected state, and when the cell indication information is 0, it indicates not entering the connected state.

[0076] In one embodiment, the third message includes the third message in the conventional physical random access channel (PRACH) process.

[0077] FIG. 5 is a flowchart of another data transmission method according to an embodiment of the present application. As shown in FIG. 5, the data transmission method provided in this embodiment includes S410.

[0078] In S410, a paging message that carries third indication information is transmitted to a second communication node.

[0079] The third indication information includes an access network type indication and a core network type indication.

[0080] In one embodiment, the data transmission method applied to the first communication node further includes that when downlink service data transmitted by a third communication node is received, a paging message that carries third indication information is transmitted to a second communication node. The third indication information includes an access network type indication and a core network type indication.

[0081] In one embodiment, the core network type indication includes one of the following: an evolved packet core (EPC) indication, or a fifth generation core (5GC) indication.

[0082] In one embodiment, the access network type indication includes one of the following: an indication regarding the radio access technology (RAT) through which the paging message is currently being transmitted, a long term evolution (LTE) indication, a narrowband Internet of Things (NB-IoT) indication, an enhanced machine type communication (eMTC) indication, a new radio (NR) indication, a global system for mobile communications (GSM (registered trademark)) indication for mobile communication, or a WIFI indication. The RAT indication through which the paging message is currently being transmitted is used to indicate to the UE to access the cell that is transmitting the paging message. In the embodiment, the UE is a multi-mode terminal. That is, the UE supports at least two of the foregoing access network type indications.

[0083] In one embodiment, in the process of performing the MT-EDT procedure, it indicates accessing the core network type. In the embodiment, the core network transmits a paging message carrying the third indication information to the base station through the S1 interface. The third indication information includes an access network type indication and a core network type indication. After receiving the paging message carrying the third indication information, the base station transmits the paging message carrying the third indication to the UE.

[0084] In one embodiment, FIG. 6 is a schematic diagram illustrating the interaction of another type of data transmission according to the embodiment of the present application. As shown in FIG. 6, the interaction procedure of data transmission in this embodiment includes S510 - S520.

[0085] In S510, a paging message carrying the third indication information is issued.

[0086] In S520, a paging message carrying the third indication information is transmitted.

[0087] In the embodiment, the core network transmits a paging message carrying the third indication information to the base station, and the base station transmits the paging message carrying the third indication information to the UE. In the embodiment, when the downlink data issued by the core network reaches the base station, the base station indicates the accessed core network type and / or the network type accessed by the UE.

[0088] In one embodiment, the data transmission method applied to the first communication node includes: when the second communication node is triggered to perform a conventional PRACH process, the downlink data transmitted by the third communication node is received; and when the transmission method of the downlink data is EDT, an S1 interface message carrying the fourth indication information is further transmitted to the third communication node. The fourth indication information includes an EDT indication.

[0089] In the EDT procedure, an EDT service indicating random access is carried within an RRC message of the S1 interface. In one embodiment, in a non-EDT PRACH process, when a downlink service reaches the base station, the base station determines that the service is within the service type of EDT. That is, only a small number of small data packets need to be transmitted. Such small data packets can be transmitted through one MAC PDU. Then, it is necessary to indicate in the signaling message of the S1 interface that the service type is an EDT service. After completing the transmission of the data packet, the core network can immediately release the context information of the terminal. FIG. 7 is a schematic diagram illustrating the interaction of another type of data transmission according to an embodiment of the present application. As shown in FIG. 7, the interaction procedure of the data transmission in this embodiment includes S610-S690.

[0090] In S610, a paging message is issued to the base station.

[0091] In S620, the paging message is transmitted to the UE.

[0092] In S630, a first message is fed back.

[0093] In S640, a second message is transmitted.

[0094] In S650, a third message is transmitted.

[0095] In S660, a fourth message is transmitted.

[0096] In S670, a fifth message (Msg5) is transmitted.

[0097] In S680, the base station determines that the downlink service is an EDT service.

[0098] In S690, a UE initialization message carrying an EDT service indication is transmitted.

[0099] When the downlink service reaches the base station, the base station determines whether the downlink service is an EDT service. If the downlink service is an EDT service, the UE initialization message transmitted by the base station to the core network carries EDT indication information and indicates to the core network to release the UE context.

[0100] In one embodiment, when a second communication node is triggered to perform a conventional PRACH process, the RRC message transmitted by the second communication node that carries fourth indication information is received. The fourth indication information includes an EDT indication.

[0101] In one embodiment, the RRC message carrying the fourth indication information is one of the following, namely, the third message or the fifth message.

[0102] FIG. 8 is a schematic diagram illustrating the interaction of another type of data transmission according to an embodiment of the present application. As shown in FIG. 8, the interaction procedure of data transmission in this embodiment includes S710 - S790.

[0103] In S710, uplink data arrives.

[0104] In S720, the first message is fed back.

[0105] In S730, the second message is transmitted.

[0106] In S740, the third message carrying the EDT service indication is transmitted.

[0107] In S750, the fourth message is transmitted.

[0108] In S760, the fifth message carrying the EDT service indication is transmitted.

[0109] In S770, the UE initialization message carrying the EDT service indication is transmitted.

[0110] In one embodiment, the EDT service indication is carried within Msg3 or Msg5 transmitted by the UE to the base station, whereby the base station transmits the EDT service indication to the core network. After receiving the EDT service indication, the core network releases the UE's context information. In an embodiment, in the process of a non-EDT UE triggering PRACH, the core network is indicated to release the connection. In an embodiment, in a non-EDT PRACH process, in the process of the UE triggering the PRACH procedure, one small data packet can be transmitted through one MAC PDU. Therefore, only a small number of small data packets need to be transmitted. The indication information carried within the third signaling message or the fifth signaling message of the UE in the PRACH process indicates that the downlink service is an EDT service. After receiving the service indicated by the UE, it is necessary to indicate in the signaling message of the S1 interface that the downlink service is an EDT service. After completing the transmission of the data packet, the core network can immediately release the terminal's context information.

[0111] In one embodiment, the base station broadcasts 1-bit indication signaling within the SIB message. The indication signaling is used to indicate whether the UE is allowed to perform an operation. The operations that are allowed include the UE's requested operations or the UE's indicated operations. In one embodiment, when the operation that is allowed is the UE's indicated operation, the UE's indicated operation includes that when the second communication node is triggered to perform a conventional PRACH process, it carries fourth indication information and receives an RRC message transmitted by the second communication node. The fourth indication information includes an EDT indication. In an embodiment, the UE can carry the fourth indication information and receive an RRC message transmitted by the second communication node only when the operation is allowed within the indication broadcast by the base station.

[0112] FIG. 9 is a flowchart of another data transmission method according to an embodiment of the present application. This embodiment is implemented by a second communication node. The second communication node can be a user equipment. As shown in FIG. 9, the data transmission method provided in this embodiment includes S810-S820.

[0113] In S810, a paging message that carries first indication information and is transmitted by a first communication node is received.

[0114] The first indication information is used to indicate whether the second communication node is triggered to perform an MT-EDT procedure.

[0115] In S820, an RRC message that carries second indication information is transmitted to the first communication node.

[0116] In an embodiment, after receiving a paging message that carries first indication information, the second communication node determines whether the second communication node is triggered to perform the MT-EDT procedure. If the second communication node is triggered to perform the MT-EDT procedure, the second communication node sends an RRC message of confirmation information corresponding to the first communication node that carries the second indication information.

[0117] In one embodiment, that an RRC message carrying second indication information is sent to the first communication node includes that when the second communication node is triggered to perform the MT-EDT procedure, a third message carrying the second indication information is sent to the first communication node.

[0118] In one embodiment, when the second communication node is triggered to perform a conventional PRACH process, an RRC message carrying fourth indication information is sent to the first communication node. The fourth indication information includes an EDT indication.

[0119] FIG. 10 is a flowchart of another data transmission method according to an embodiment of the present application. This embodiment is performed by a second communication node. The second communication node may be a UE. As shown in FIG. 10, the data transmission method provided in this embodiment includes S910.

[0120] In S910, a paging message that carries third indication information and is sent by the first communication node is received.

[0121] The third indication information includes an access network type indication and a core network type indication.

[0122] In an embodiment, the core network issues a paging message carrying third indication information to a base station, and the base station transmits the paging message carrying the third indication information to a UE. Therefore, based on the paging message carrying the third indication information, the UE determines the type of network to be accessed.

[0123] In one embodiment, the second communication node includes a multi-mode second communication node.

[0124] FIG. 11 is a flowchart of an information determination method according to an embodiment of the present application. This embodiment can be implemented by a second communication node. The second communication node can be a base station. As shown in FIG. 11, the data transmission method provided in this embodiment includes S1010.

[0125] In S1010, the current resource index of each WUS group is determined with respect to the corresponding original resource index of each WUS group based on a preset rule and according to the number of radio frames, radio frame index, superframe index, and the number of wake-up signal (WUS) group resources.

[0126] In one embodiment, the calculation formula for the current resource index of each WUS group is M = mod((A+(SFN_Index + 1024×H_SFN) / T),K).

[0127] M represents the current resource index of each WUS group, A represents the original resource index of each WUS group, T represents the number of radio frames included in one discontinuous reception cycle, SFN_Index represents the radio frame index corresponding to the second communication node in the current paging occasion, H_SFN represents the superframe index corresponding to the second communication node in the current paging occasion, K represents the number of WUS group resources, and mod represents a function regarding the remainder.

[0128] In an embodiment, to achieve the fairness of each WUS group (which indicates that the resource index corresponding to each WUS group is dynamic), the relationship between the current resource index of each WUS group and the original resource index of each WUS group can be used to dynamically change the WUS group resources.

[0129] The UE determines a position for monitoring WUS based on the current resource index of the UE's WUS group. The base station determines the transmission resources of each WUS group sequence based on the current resource index of each WUS group.

[0130] FIG. 12 is a block diagram illustrating the structure of a data transmission device according to an embodiment of the present application. This embodiment is implemented by a first communication node. As shown in FIG. 12, the data transmission device in this embodiment includes a first transmission module 1110 and a first reception module 1120.

[0131] The first transmission module 1110 is configured to transmit a paging message carrying first indication information to a second communication node. The first indication information is used to indicate whether the second communication node is triggered to perform the MT-EDT procedure.

[0132] The first reception module 1120 is configured to receive an RRC message transmitted by the second communication node and carrying second indication information.

[0133] The data transmission device provided in this embodiment is configured to implement the data transmission method of the embodiment shown in FIG. 1. The implementation principle and technical effects of the data transmission device provided in this embodiment are similar and will not be repeated here.

[0134] In one embodiment, the indication method of the second indication information includes one of the following: indication through a cell extension, or indication through a cause value extension.

[0135] In one embodiment, the first receiving module includes receiving a third message transmitted by a second communication node, which carries the second indication information when the second communication node is triggered to perform an MT-EDT procedure.

[0136] In one embodiment, the second indication information is used to indicate one of the following: requesting the second communication node to enter a connected state, whether the second communication node needs to transmit uplink data, whether the MT-EDT procedure is to be terminated, the second communication node requesting the MT-EDT procedure, confirmation response information of the MT-EDT procedure, or the second communication node performing uplink data transmission and not performing the MT-EDT procedure.

[0137] In one embodiment, the determination method of the second indication information includes one of the following methods: a MAC CE message, or an extended RRC message.

[0138] In one embodiment, when the second indication information is determined through a MAC CE message, the determination method of the second indication information includes one of the following methods: reserved bits of an existing MAC CE message, a new logical channel identifier (LCID) in the MAC sub-header, or indication information of a MAC service data unit (SDU) in the MAC CE.

[0139] In one embodiment, when the second indication information is determined through an extended RRC message, the determination method of the second indication information includes newly added cell indication information in the extended RRC message.

[0140] In one embodiment, the third message includes the third message in a conventional physical random access channel (PRACH) process.

[0141] FIG. 13 is a block diagram illustrating the structure of another data transmission device according to an embodiment of the present application. This embodiment is implemented by a first communication node. As shown in FIG. 13, the data transmission device in this embodiment includes a second transmission module 1210.

[0142] The second transmission module 1210 is configured to transmit a paging message carrying third indication information to a second communication node. The third indication information includes an access network type indication and a core network type indication.

[0143] The data transmission device provided in this embodiment is configured to implement the data transmission method of the embodiment shown in FIG. 5. The implementation principle and technical effects of the data transmission device provided in this embodiment are the same and will not be repeated here.

[0144] In one embodiment, the data transmission device applied to the first communication node further includes a fourth transmission module. The fourth transmission module is configured to transmit a paging message carrying third indication information to the second communication node when downlink service data transmitted by a third communication node is received. The third indication information includes an access network type indication and a core network type indication.

[0145] In one embodiment, the core network type indication includes one of the following: an evolved packet core (EPC) indication, or a 5GC indication.

[0146] In one embodiment, the access network type indication includes one of the following: an indication regarding a radio access technology (RAT) through which a paging message is currently being transmitted, a Long-Term Evolution (LTE) indication, a Narrowband Internet of Things (NB-IoT) indication, an Extended Machine-Type Communication (eMTC) indication, a New Radio (NR) indication, a Global System for Mobile Communications (GSM (registered trademark)) indication for mobile communication, or a Wireless Fidelity (WIFI) indication.

[0147] In one embodiment, the data transmission device applied to the first communication node further includes a fourth receiving module and a fifth transmitting module.

[0148] The fourth receiving module is configured to receive downlink data transmitted by the third communication node when the second communication node is triggered to perform a conventional PRACH process.

[0149] The fifth transmitting module is configured to transmit an S1 interface message carrying fourth indication information to the third communication node when the downlink data transmission method is EDT. The fourth indication information includes an EDT indication.

[0150] FIG. 14 is a block diagram illustrating the structure of another data transmission device according to an embodiment of the present application. This embodiment is implemented by a second communication node. As shown in FIG. 14, the data transmission device in this embodiment includes a second receiving module 1310 and a third transmitting module 1320.

[0151] The second receiving module 1310 is configured to receive a paging message carrying first indication information and transmitted by the first communication node. The first indication information is used to indicate whether the second communication node is triggered to perform an MT-EDT procedure.

[0152] The third transmission module 1320 is configured to transmit an RRC message carrying the second instruction information to the first communication node.

[0153] The data transmission device provided in this embodiment is configured to implement the data transmission method of the embodiment shown in FIG. 9. The implementation principle and technical effects of the data transmission device provided in this embodiment are similar and will not be repeated here.

[0154] In one embodiment, with respect to the third transmission module 1320, when the second communication node is triggered to perform the MT-EDT procedure, it includes that a third message carrying the second instruction information is transmitted to the first communication node.

[0155] In one embodiment, the data transmission device applied to the second communication node further includes a sixth transmission module.

[0156] The sixth transmission module is configured to transmit an RRC message carrying the fourth instruction information to the first communication node when the second communication node is triggered to perform the conventional PRACH process. The fourth instruction information includes an EDT instruction.

[0157] FIG. 15 is a block diagram illustrating the structure of another data transmission device according to an embodiment of the present application. As shown in FIG. 15, the data transmission device in this embodiment includes a third reception module 1410.

[0158] The third reception module 1410 is configured to receive a paging message transmitted by the first communication node and carrying the third instruction information. The third instruction information includes an access network type instruction and a core network type instruction.

[0159] The data transmission device provided in this embodiment is configured to implement the data transmission method of the embodiment shown in FIG. 10. The implementation principle and technical effects of the data transmission device provided in this embodiment are similar and will not be repeated here.

[0160] In one embodiment, the second communication node includes a second communication node of multi-mode. In one embodiment, the data transmission device applied to the second communication node further includes the following.

[0161] FIG. 16 is a block diagram illustrating the structure of an information determination device according to an embodiment of the present application. As shown in FIG. 16, the information determination method provided in this embodiment includes a processor 1510.

[0162] The processor 1510 is configured to determine a corresponding WUS group resource index regarding the WUS group index based on a preset rule and according to the number of radio frames, radio frame index, superframe index, and the number of wake-up signal (WUS) group resources.

[0163] The information determination device provided in this embodiment is configured to implement the information determination method of the embodiment shown in FIG. 11. The implementation principle and technical effects of the information determination device provided in this embodiment are similar and will not be repeated here.

[0164] In one embodiment, the calculation formula for the current resource index of each WUS group is M = mod((A + (SFN_Index + 1024×H_SFN) / T), K).

[0165] M represents the current resource index of each WUS group, A represents the original resource index of each WUS group, T represents the number of radio frames included in one discontinuous reception cycle, SFN_Index represents the radio frame index corresponding to the second communication node in the current paging occasion, H_SFN represents the superframe index corresponding to the second communication node in the current paging occasion, K represents the number of WUS group resources, and mod represents a function related to the remainder.

[0166] FIG. 17 is a schematic diagram illustrating the structure of a device according to an embodiment of the present application. As shown in FIG. 17, the device provided in the present application includes a processor 1610 and a memory 1620. The number of processors 1610 in the device can be one or more, and one processor 1610 is used as an example in FIG. 17. The number of memories 1620 in the device can be one or more, and one memory 1620 is used as an example in FIG. 17. The processor 1610 of the device and the memory 1620 of the device are connected by a bus or in other ways, and the connection by a bus is given as an example in FIG. 17. In this embodiment, the device is the first communication node.

[0167] As a computer-readable storage medium, memory 1620 can be configured to store software programs, computer-executable programs, and modules such as program instructions / modules corresponding to the devices according to any embodiment of the present application (e.g., the first transmission module and the first reception module in the data transmission device). Memory 1620 can include a program storage area and a data storage area. The program storage area can store an operating system and an application program required by at least one function, while the data storage area can store data created according to the use of the device. In addition, memory 1620 can include high-speed random access memory and can further include non-volatile memory, such as at least one magnetic disk memory element, flash memory element, or another non-volatile solid memory element. In some examples, memory 1620 can further include a memory located remotely from processor 1610, and these remote memories can be connected to the device via a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranet, local area network, mobile communication network, and combinations thereof.

[0168] The aforementioned device can be configured to implement the data transmission method applied to the first communication node provided in any of the aforementioned embodiments, and has corresponding functions and effects.

[0169] When the device is the second communication node, the program stored in the memory 1620 can be program instructions / modules corresponding to the data transmission method applicable to the second communication node provided in the embodiments of the present application. The processor 1610 executes the software programs, instructions, and modules stored in the memory 1620 so as to implement one or more functional applications and data processing, that is, to implement the data transmission method applicable to the second communication node in the foregoing method embodiments. It should be understood that when the foregoing device is the second communication node, the device can implement the data transmission method applicable to the second communication node provided in any embodiment of the present application and has corresponding functions and effects.

[0170] When the device is the second communication node, the program stored in the memory 1620 can be program instructions / modules corresponding to the information determination method applicable to the second communication node provided in the embodiments of the present application. The processor 1610 executes the software programs, instructions, and modules stored in the memory 1620 so as to implement one or more functional applications and data processing, that is, to implement the information determination method applicable to the second communication node in the foregoing method embodiments. It should be understood that when the foregoing device is the second communication node, the device can implement the information determination method applicable to the second communication node provided in any embodiment of the present application and has corresponding functions and effects.

[0171] Embodiments of the present application further provide a storage medium including computer-executable instructions. When executed by a computer processor, the computer-executable instructions cause the processor to implement a data transmission method. The data transmission method is applied to a first communication node. The method includes transmitting a paging message carrying first indication information to a second communication node, where the first indication information is used to indicate whether the second communication node is triggered to perform an MT-EDT procedure, and receiving an RRC message carrying second indication information and transmitted by the second communication node.

[0172] Embodiments of the present application further provide a storage medium including computer-executable instructions. When executed by a computer processor, the computer-executable instructions cause the processor to implement a data transmission method. The data transmission method is applied to a first communication node. The method includes receiving a paging message carrying third indication information and transmitted by a third communication node. The third indication information includes an access network type indication and a core network type indication.

[0173] Embodiments of the present application further provide a storage medium including computer-executable instructions. When executed by a computer processor, the computer-executable instructions cause the processor to implement a data transmission method. The data transmission method is applied to a second communication node. The method includes receiving a paging message carrying first indication information and transmitted by a first communication node, where the first indication information is used to indicate whether the second communication node is triggered to perform an MT-EDT procedure, and transmitting an RRC message carrying second indication information to the first communication node.

[0174] Embodiments of the present application further provide a storage medium including computer-executable instructions. When executed by a computer processor, the computer-executable instructions cause the processor to implement a data transmission method. The data transmission method is applied to a second communication node. The method includes receiving a paging message sent by a first communication node and carrying third instruction information. The third instruction information includes an access network type instruction and a core network type instruction.

[0175] Embodiments of the present application further provide a storage medium including computer-executable instructions. When executed by a computer processor, the computer-executable instructions cause the processor to implement an information determination method. The method includes determining a corresponding WUS group resource index regarding a WUS group index based on a preset rule and according to the number of wireless frames, a wireless frame index, a superframe index, and the number of WUS group resources.

[0176] Those skilled in the art should understand that the term "user device" encompasses any suitable type of wireless user device such as a mobile phone, a portable data processing device, a portable web browser, or a vehicle-mounted mobile station.

[0177] In general, the various embodiments of the present application can be implemented in hardware, dedicated circuits, software, logic, or any combination thereof. For example, some aspects can be implemented within hardware, while other aspects can be implemented within firmware or software that can be executed by a controller, a microprocessor, or other computing devices, but the present application is not limited thereto.

[0178] Embodiments of the present application can be implemented by hardware that can be implemented by, for example, computer program instructions executed by a data processor of a mobile device within a processor entity, or can be implemented by a combination of software and hardware. The computer program instructions can be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, status setting data, or source or object code written in any combination of one or more programming languages.

[0179] Any block diagram of an arbitrary logical flow among the drawings of the present application can represent program steps, interconnected logical circuits, modules, and functions, or a combination of program steps and logical circuits, modules, and functions. The computer program can be stored in a memory. The memory can be of any type suitable for a local technical environment and can be implemented using, but not limited to, any suitable data storage device technology such as read-only memory (ROM), random access memory (RAM), and optical memory devices and systems (digital video disk (DVD) or compact disk (CD)). The computer-readable medium can include a non-transitory storage medium. The data processor can be of any type suitable for a local technical environment, including but not limited to, a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), and a processor based on a multi-core processor architecture.

Claims

A data transmission method applied to a radio access network node, the data transmission method comprising: Transmitting a paging message carrying first indication information to a wireless terminal, the first indication information being used to indicate whether to trigger the wireless terminal to execute a Mobile Terminated - Early Data Transmission (MT - EDT) procedure; Receiving a Radio Resource Control (RRC) message carrying second indication information, the RRC message being received from the wireless terminal, the second indication information being indicated through two resume cause values, one resume cause value being used to indicate that the wireless terminal is required to enter a connected state to transmit uplink service data having a large size, and the other resume cause value being used to trigger the execution of the MT - EDT procedure; A data transmission method comprising the above. A data transmission method applied to a wireless terminal, the data transmission method comprising: Receiving, from a radio access network node, a paging message carrying first indication information, the first indication information being used to indicate whether the wireless terminal is triggered to execute a Mobile Terminated - Early Data Transmission (MT - EDT) procedure; Transmitting a Radio Resource Control (RRC) message carrying second indication information to the radio access network node, the second indication information being indicated through two resume cause values, one resume cause value being used to indicate that the wireless terminal is required to enter a connected state to transmit uplink service data having a large size, and the other resume cause value being used to trigger the execution of the MT - EDT procedure; A data transmission method comprising the above. A data transmission device configured as a radio access network node, the data transmission device comprising: The data transmission device includes: One or more processors; A memory configured to store a computer - executable program; And is provided with; When the computer - executable program is executed by the one or more processors, To transmit a paging message carrying first indication information to a wireless terminal, wherein the first indication information is used to indicate whether to trigger the wireless terminal to execute a Mobile Terminated - Early Data Transmission (MT - EDT) procedure To receive a Radio Resource Control (RRC) message carrying second indication information, wherein the RRC message is received from the wireless terminal, the second indication information is indicated through two resume cause values, one resume cause value is used to indicate a request for the wireless terminal to enter a connected state to transmit uplink service data having a large size, and the other resume cause value is used to trigger the execution of the MT - EDT procedure A data transmission device that causes the above to be performed on the data transmission device

4. A data transmission device configured as a wireless terminal, wherein the data transmission device comprises one or more processors, and a memory configured to store a computer - executable program and is provided with, when the computer - executable program is executed by the one or more processors, to receive, from a radio access network node, a paging message carrying first indication information, wherein the first indication information is used to indicate whether the wireless terminal is triggered to execute a Mobile Terminated - Early Data Transmission (MT - EDT) procedure to transmit a Radio Resource Control (RRC) message carrying second indication information to the radio access network node, wherein the second indication information is indicated through two resume cause values, one resume cause value is used to indicate a request for the wireless terminal to enter a connected state to transmit uplink service data having a large size, and the other resume cause value is used to trigger the execution of the MT - EDT procedure A data transmission device that causes the above to be performed on the data transmission device **Claim 5** A non-transitory computer-readable medium storing a computer-executable program, wherein when the computer-executable program is executed by a processor, the wireless access network node is caused to execute the data transmission method according to claim 1. A non-transitory computer-readable medium. **Claim 6** A non-transitory computer-readable medium storing a computer-executable program, wherein when the computer-executable program is executed by a processor, the wireless terminal is caused to execute the data transmission method according to claim 2. A non-transitory computer-readable medium.

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