CN111246590B

CN111246590B - Data transmission method and related product

Info

Publication number: CN111246590B
Application number: CN202010026661.7A
Authority: CN
Inventors: 高兴航
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2022-02-22
Anticipated expiration: 2040-01-10
Also published as: CN111246590A

Abstract

The embodiment of the application discloses a data transmission method and a related product, wherein the method comprises the following steps: the terminal equipment sends a terminal identification to the network equipment through a random access process; the terminal equipment receives a response message which is sent by the network equipment and comprises a terminal identification; the terminal equipment acquires indication information which is carried by the response message and used for receiving or sending data by the terminal equipment in an inactive state, and indication information of target resources used for sending or receiving the data; and the terminal equipment uses the target resource to perform data interaction with the network equipment in the non-active state. In the application, the terminal equipment acquires the target resource indicated by the base station through the random access process, and performs data interaction with the base station by using the target resource in the non-active state, so that data transmission collision is avoided, and the success rate of data transmission is increased.

Description

Data transmission method and related product

Technical Field

The present application relates to the field of communications, and in particular, to a data transmission method and a related product.

Background

In a fifth generation (5th generation, 5G) communication system, a Radio Resource Control (RRC) inactive (inactive) state is introduced on the terminal device side. When the terminal equipment is in an inactive state, the terminal equipment and the network equipment both store the access layer context of the terminal equipment, so that the terminal equipment can perform data transmission with the network equipment.

At present, terminal equipment can transmit a small amount of data with network equipment through a random access process in an inactive state, but the terminal equipment frequently transmits the data through common resources in the random access process, so that the probability of data transmission collision is increased, and the success rate of data transmission is reduced.

Disclosure of Invention

The embodiment of the application provides a data transmission method and a related product, wherein terminal equipment acquires target resources indicated by a base station through a random access process, and performs data interaction with the base station by using the target resources in an inactive state, so that data transmission collision is avoided, and the success rate of data transmission is increased.

In a first aspect, an embodiment of the present application provides a data transmission method, where the method may include: the terminal equipment sends a terminal identification to the network equipment through a random access process; the terminal equipment receives a response message which is sent by the network equipment and comprises the terminal identification; the terminal equipment acquires the response message carrying indication information of data receiving or data sending of the terminal equipment in an inactive state and indication information of target resources used for sending or receiving data; and the terminal equipment uses the target resource to perform data interaction with the network equipment in the non-active state.

In an alternative implementation, the target resource includes: the terminal equipment acquires a group of time-frequency resources from the time-frequency resource set; the time frequency resource set is at least one group of time frequency resources acquired by the terminal equipment from system information or Signaling Radio Bearer (SRB) information; the time frequency resource is an uplink time frequency resource or a downlink time frequency resource; the time frequency resource is the uplink time frequency resource and the downlink time frequency resource.

In an alternative implementation, the target resource includes: the terminal equipment monitors a search space in a search space set where a Physical Downlink Control Channel (PDCCH) is located; the search space set is at least one search space acquired by the terminal device from system information or SRB messages.

In an optional implementation manner, the indication information of the target resource is an index identifier of the target resource, where the index identifier is used for the terminal device to determine the target resource from at least two groups of the time-frequency resources or from at least two search spaces.

In an optional implementation manner, the indication information of the target resource is an activation identifier of the target resource; the activation flag is used to instruct the terminal device to confirm that a group of the time-frequency resources is activated, or the terminal device confirms that one of the search spaces is activated.

In an optional implementation manner, before the terminal device sends the terminal identifier to the network device through the random access procedure, the method further includes: and the terminal equipment receives the system information or the SRB message sent by the network equipment.

In an optional implementation manner, the SRB message is carried by the response message received by the terminal device.

In an optional implementation manner, the indication information of the target resource and the indication information of data reception or data transmission in the inactive state indicate through a successful random access response service data unit in the response message, or a random access control MAC subheader of the response message or an SRB message carried by the response message.

In an optional implementation manner, after the terminal device performs data interaction with the network device using the target resource in the inactive state, the method further includes: when the terminal equipment completes the transmission of uplink data, sending an uplink data transmission ending identifier to the network equipment, and indicating the network equipment that the terminal equipment stops using the target resource to send data; and after receiving the downlink data transmission ending identifier sent by the network equipment, the terminal equipment stops using the target resource to receive data.

In an optional implementation manner, the downlink data transmission end identifier is a downlink data bearer received through the PDCCH or the terminal device; and the uplink data transmission ending identifier is carried by uplink data sent by the terminal equipment.

In an optional implementation manner, after the terminal device performs data interaction with the network device by using the target uplink and downlink resource in the inactive state, the method further includes: and under the condition that the terminal equipment does not receive the data sent by the network equipment in the first period, the terminal stops receiving the data by using the target resource.

In a second aspect, an embodiment of the present application provides a data transmission method, where the method may include: the network equipment receives a terminal identification sent by the terminal equipment through a random access process; the network equipment sends a response message including the terminal identification to the terminal equipment; the response message comprises indication information of data receiving or data sending of the terminal equipment in an inactive state and indication information of target resources used for sending or receiving data; and the network equipment uses the target resource to perform data interaction with the terminal equipment in the inactive state.

In an alternative implementation, the target resource includes: the network equipment indicates a group of time frequency resources acquired by the terminal equipment from a time frequency resource set; the time frequency resource set is at least one group of time frequency resources borne by the network equipment through system information or Signaling Radio Bearer (SRB) information; the time frequency resource is an uplink time frequency resource or a downlink time frequency resource; the time frequency resource can be uplink time frequency resource and downlink time frequency resource.

In an alternative implementation, the target resource includes: the network equipment indicates the terminal equipment to monitor a search space in a search space set in which a Physical Downlink Control Channel (PDCCH) is located; the search space set is at least one search space carried by the network device through the system information or the SRB message.

In an optional implementation manner, the indication information of the target resource is an index identifier of the target resource; the index identification is used for the network equipment to instruct the terminal equipment to determine the target resource from at least two groups of the time frequency resources; the index identification or for the network device instructs the terminal device to determine the target resource from at least two of the search spaces.

In an optional implementation manner, the indication information of the target resource is an activation identifier of the target resource; the activation identifier is used for the network equipment to indicate that a group of the time-frequency resources of the terminal equipment is activated; the activation identifier or the indication for the network device indicates to the terminal device that one of the search spaces is activated.

In an optional implementation manner, before the network device receives the terminal identifier sent by the terminal device through the random access procedure, the method further includes: and the network equipment sends the system information or the SRB message to the terminal equipment.

In an optional implementation manner, the SRB message is carried by the response information sent by the network device.

In an optional implementation manner, the indication information of the target resource and the indication information of data reception or data transmission in the inactive state are indicated by a successful random access response service data unit in the response message, or an MAC subheader of the response message or an SRB message carried by the response message.

In an optional implementation manner, after the network device performs data interaction with the terminal device in the inactive state using the target resource, the method further includes: after the network equipment completes the transmission of the downlink data, sending a downlink data transmission ending identifier to the terminal equipment, and indicating the terminal equipment to stop using the target resource to receive the data; and after receiving the uplink data transmission ending identifier sent by the terminal equipment, the network equipment determines that the terminal equipment stops using the target resource to send data.

In an optional implementation manner, the downlink data transmission end identifier is a downlink data bearer sent through a PDCCH or the network device; the uplink data transmission identifier is carried by the uplink data received by the network equipment.

In an optional implementation manner, after the network device performs data interaction with the terminal device in the inactive state using the target resource, the method further includes: and under the condition that the network equipment does not send data to the terminal equipment within the first period, the network equipment determines that the terminal equipment stops using the target resource to receive the data.

In a third aspect, an embodiment of the present application provides a terminal device, where the terminal device includes: a sending unit, configured to send a terminal identifier to a network device through a random access procedure; a receiving unit, configured to receive a response message including the terminal identifier sent by the network device; an obtaining unit, configured to obtain indication information that the response message carries data reception or data transmission performed by the terminal device in an inactive state, and indication information of a target resource used for transmitting or receiving data; and the data interaction unit is used for performing data interaction with the network equipment by using the target resource in the inactive state.

In a fourth aspect, an embodiment of the present application provides a network device, where the network device includes:

a receiving unit, configured to receive a terminal identifier sent by a terminal device through a random access process; a sending unit, configured to send a response message including the terminal identifier to the terminal device; the response message comprises indication information of data receiving or data sending of the terminal equipment in an inactive state and indication information of target resources used for sending or receiving data; and the data interaction unit is used for performing data interaction with the terminal equipment in the inactive state by using the target resource.

In a fifth aspect, an embodiment of the present application provides a terminal device, where the terminal device includes a receiver and a transmitter, and further includes: a processor adapted to implement one or more instructions; and a computer storage medium storing one or more instructions adapted to be loaded by the processor and to perform the method according to the first aspect as well as the optional implementations of the first aspect.

In a sixth aspect, an embodiment of the present application provides a network device, where the network device includes a receiver and a transmitter, and further includes: a processor adapted to implement one or more instructions; and a computer storage medium storing one or more instructions adapted to be loaded by the processor and to perform the method of the second aspect as described above and the optional implementation in the second aspect described above.

In a seventh aspect, an embodiment of the present application provides a computer storage medium, where one or more instructions are stored, and the one or more instructions are adapted to be loaded by a processor and to execute the method according to the first aspect and the implementation manners in the first aspect.

In an eighth aspect, embodiments of the present application provide a computer storage medium storing one or more instructions adapted to be loaded by a processor and to execute a method according to the second aspect and the optional implementation manner in the second aspect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present application, the drawings required to be used in the embodiments or the background art of the present application will be described below.

Fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present application;

fig. 2 is a schematic diagram of a random access procedure according to an embodiment of the present application;

fig. 3 is a flowchart of a data transmission method according to an embodiment of the present application;

fig. 4 is a flowchart of another data transmission method according to an embodiment of the present application;

fig. 5 is a flowchart of another data transmission method provided in the embodiment of the present application;

fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of another network device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of another terminal device provided in the embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

In order to make the embodiments of the present application better understood, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments.

The terms "first," "second," and "third," etc. in the description and claims of the present application and the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises" and "comprising," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such as a list of steps or modules. The methods, systems, articles of manufacture, or apparatus need not be limited to the steps or modules explicitly listed, but may include other steps or modules not explicitly listed or inherent to such processes, methods, articles of manufacture, or apparatus. "and/or" is used to indicate the selection of one or both between two objects to which it is connected.

The embodiment of the application provides a data transmission method and a related product, wherein terminal equipment acquires target uplink and downlink resources through a random access process, and performs data transmission with a base station by using the target uplink and downlink resources in an inactive state, so that data transmission collision is avoided, and the success rate of data transmission is increased.

A terminal equipment (UE) in the embodiments of the present application may refer to a user equipment, an access terminal equipment, a subscriber unit, a subscriber station, a mobile station, a remote terminal equipment, a mobile device, a user terminal equipment, a wireless communication equipment, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which are not limited in this embodiment.

In addition, in the embodiment of the present application, the terminal device may also be a terminal device in an internet of things (IoT) system, where IoT is an important component of future information technology development, and a main technical feature of the present application is to connect an article with a network through a communication technology, so as to implement an intelligent network with interconnected human-computer and interconnected objects.

The network device in this embodiment may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) system or a Code Division Multiple Access (CDMA) system, may also be a base station (node b, NB) in a Wideband Code Division Multiple Access (WCDMA) system, may also be an evolved node b (eNB or eNodeB) in an LTE system, may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or may be a relay station, an Access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, and the like, and the present embodiment is not limited.

Fig. 1 is a schematic architecture diagram of a communication system to which embodiments of the present application are applicable. The architecture diagram includes: network device 102, network device 102 may include 1 antenna or multiple antennas, e.g.,

antennas

104, 106, 108, 110, 112, and 114. Additionally, network device 102 can additionally include a transmitter chain and a receiver chain, each of which can comprise a plurality of components associated with signal transmission and reception (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, antennas, etc.), as will be appreciated by one skilled in the art.

Network device 102 may communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it is understood that network device 102 may communicate with any number of terminal devices similar to terminal device 116 or terminal device 122.

End devices

116 and 122 may be, for example, cellular phones, smart phones, laptops, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable device for communicating over wireless communication system 100.

As shown in fig. 1, terminal device 116 is in communication with

antennas

112 and 114, where

antennas

112 and 114 transmit information to terminal device 116 over a forward link (also called a downlink) 118 and receive information from terminal device 116 over a reverse link (also called an uplink) 120. In addition, terminal device 122 is in communication with

antennas

104 and 106, where

antennas

104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.

In addition, the communication system 100 may be a 5G network or other networks, fig. 1 is a simplified schematic diagram of an example, and other network devices may be included in the network, which is not limited in this application and is not shown in fig. 1.

First, a brief description will be made of the basic concept related to the embodiments of the present application.

In a 5G New Radio (NR), a new Radio Resource Control (RRC) state, in addition to a RRC connected (connected) state and an RRC idle (idle) state, is added to a terminal device, which is called an inactive RRC inactive (inactive) state. In the inactive state, the behavior of the terminal device is the same as that of the idle state, and the Physical Downlink Control Channel (PDCCH) is not monitored, measurement is not performed, only the detection of the reference signal is performed, cell reselection is performed, paging (paging) messages and System Information (SI) are monitored, and the like. The difference between the inactive state and the idle state is that both the base station and the terminal device maintain an access stratum context (AS context) of the terminal device. When the terminal equipment receives and transmits data again, the rapid recovery (resume) can be carried out through the random access process, and the processes of security mode activation, capability reporting, information configuration and the like do not need to be carried out again, so that the signaling interaction process is reduced, the signaling overhead is reduced, and the power consumption of the terminal equipment is reduced.

The access stratum context of the terminal device in the inactive state includes radio bearers, logical channels and security configurations. The terminal device maintains the same Packet Data Convergence Protocol (PDCP) entity, PDCP count, and Sequence Number (SN) in the similar connection state. Meanwhile, the AS context of the terminal device in the inactive state may also be considered to include other information if it is determined necessary.

It should be understood that the above content of the access stratum context of the terminal device in the inactive state is only an example, and information specifically included in the access stratum context in this embodiment is not limited.

The random access process is originally applicable to LTE (Long term evolution) systems and 5G communication systems, and the random access process is used for obtaining uplink synchronization and applying for uplink resources by terminal equipment. As shown in fig. 2, the random access procedure includes 4 steps: 201. the method comprises the steps that terminal equipment sends a random access preamble (random access preamble) to network equipment, wherein the random access preamble is a message 1 (message 1, Msg1) in a 4-step random access process; 202. the network device sends a Random Access Response (RAR) message to the terminal device, wherein the RAR message is a message 2 (Msg 2) in a 4-step RAR process; 203. the terminal equipment sends a scheduled transmission message to the network equipment, wherein the scheduled transmission message is a message 3 (message 3, Msg3) in a 4-step random access process; 204. the network device sends a contention resolution message to the terminal device, where the contention resolution message is message 4 (message 3, Msg4) in a 4-step random access process.

In step 201, the random access preamble of the message 1 is mainly used to notify the network device that there is a random access request, and at the same time, the network device can measure the transmission delay between the network device and the terminal device, calibrate the uplink timing with the transmission delay, and indicate the uplink timing information to the terminal device through the message 2. It should be noted that, the terminal device needs to select a random access preamble (preamble) and a Physical Random Access Channel (PRACH) resource for performing the random access request, but since the random access preamble and the PRACH belong to a common resource in the random access procedure, there are cases where multiple terminal devices select one PRACH resource and one random access preamble, thereby causing a collision.

In step 202, the random access response message is transmitted through a resource location indicated by a PDCCH scrambled by a random access radio network temporary identity (RA-RNTI). The time-frequency position of the preamble determines the value of the RA-RNTI. After sending the random access preamble, the terminal device monitors the PDCCH according to the RA-RNTI value in the RAR time window to receive the random access response message indicated by the RA-RNTI. And if the random access response message returned by the network equipment is not received in the RAR time window, the random access process is considered to fail. The random access response message comprises a time adjustment amount required by uplink synchronization of the appointed terminal equipment; the terminal equipment sends the uplink resource of the scheduling transmission information; a temporary radio cellular network temporary identity (TC-RNTI) for subsequent transmissions by the UE and the base station. After the conflict is resolved, the TC-RNTI is set to the C-RNTI of the terminal device.

In step 203, the message 3 is transmitted on an uplink shared channel (UL-SCH), and the message 3 includes a unique identifier of the terminal device. This identification will be used for conflict resolution at step 104. For the terminal equipment in the connected state, the identifier is C-RNTI; for a terminal device that is not connected, the identifier is a serving-temporary mobile subscriber identity (S-TMSI), a resume identity (resume ID), or a random number.

In step 204, the network device carries the identifier of the terminal device in the message 4 in the conflict resolution mechanism to designate the terminal device that succeeds in random access, and other terminal devices that do not succeed in random access in conflict resolution will re-initiate random access. If the PDCCH received by the terminal device in the message 4 is scrambled by the TC-RNTI specified in the RAR, when a media access control layer protocol data unit (UE content Resolution Identity MAC control element) of the terminal device collision Resolution identifier included in a successfully decoded media access control layer protocol data unit (MAC PDU) matches a common control channel service data unit (CCCH SDU) transmitted by the message 3, the terminal device determines that random access is successful and sets the TC-RNTI to the C-RNTI.

In the 5G communication standard release R16, in order to reduce the access delay of the terminal device, a two-step random access procedure is introduced. In the two-step random access process, the first step is that the terminal device transmits a message 1 and a message 3 to the network device, the message 1 and the message 3 are used as a message a (MsgA), the second step is that the network device transmits a message B (MsgB) to the terminal device, and the message B is obtained by combining a message 2 and a message 4.

The message B sent by the base station may carry response indications of multiple terminal devices. The response indication is carried by a sub protocol data unit (subPDU) of the MAC. Each MAC sub-protocol data unit includes a Media Access Control (MAC) sub-header (subheader) and a Service Data Unit (SDU). The message B may include a backward indication information (BI indicator) sub-protocol data unit, a fallback random access response sub-protocol data unit (fallback rar sub-pdu), a successful random access response sub-protocol data unit (success rar sub-pdu), or a media access control layer sub-protocol data unit (SRB MAC sub-pdu) of a signaling radio bearer of the UE. Each sub-protocol data unit is distinguished by a MAC subheader. A successful random access response sub-protocol data unit (success rar subPDU) includes a MAC subheader and a successful random access response service data unit (success rar SDU). If the message B carries the SRB MAC subpPDU, the message B is only used for indicating one terminal device. The network device indicates, through the MAC subheader of the successful random access response service data unit (successful rar sub pdu), whether the message B includes a Signaling Radio Bearer (SRB) message of the corresponding terminal device. The terminal device's SRB MAC subPDU includes the SRB messages sent by the network device to the terminal device.

In the random access procedure, the message 3 in the 4-step random access procedure or the message a in the 2-step random access procedure may transmit a radio resource control connection resume (RRC connection resume) message. The RRC connection resume message is used for the terminal device to request the network device to resume the RRC link. The network device carries response information of the RRC connection recovery message in the message 4 or the message B, where the response information is one of RRC connection recovery complete information (RRCResumeComplete), RRC reestablishment information (RRCsetup), RRC connection release information (RRCrelease) or RRC connection reject (rrcrereject) message, or a redefined RRC message. The rrc connection restoration information, rrc reestablishment information, rrc connection release information, and rrc connection reject information are all SRB messages. After the terminal device sends a rrc connection resume message to the network device, the network device determines a message from rrc connection resume information, rrc reestablishment information, rrc connection release information, and rrc connection reject message, among newly defined SRB messages, and sends the determined message to the terminal device.

In an inactive state, the terminal device may send a small data packet to the network device through the message 3 or the message a in the random access process, where the small data packet refers to a data packet whose data amount is smaller than a preset threshold, and the preset threshold may be adjusted according to an actual situation, which is not limited here. The network device may send a small data packet to the terminal device in the inactive state through message 4 or message B in the random access process. When the terminal equipment and the network equipment need to transmit a plurality of small data packets, the terminal equipment needs to initiate a plurality of random access processes, and the random access is performed by adopting periodic public resources, so that the transmission of the small data packets through the random access processes not only increases the time delay of data transmission, but also increases the probability of data transmission collision, and reduces the success rate of the data transmission.

In order to solve the above problem, an embodiment of the present application provides a data transmission method, where a terminal device obtains a target resource indicated by a base station through a random access process, and performs data interaction with the base station using the target resource in an inactive state, so as to avoid data transmission collision and increase a success rate of data transmission.

Fig. 3 is a flowchart of a data transmission method according to an embodiment of the present application, and as shown in fig. 3, the method is a method for data transmission by a terminal device. The method can comprise the following steps:

301. the terminal equipment sends the terminal identification to the network equipment through the random access process.

The terminal equipment sends a terminal identification to the network equipment through a random access process in an inactive state, and the terminal identification is carried through a message 3 or a message A in the random access process.

302. And the terminal equipment receives a response message which is sent by the network equipment and comprises a terminal identification.

The response message carries indication information of data receiving or data sending of the terminal device in the inactive state and indication information of target resources used for sending or receiving data. The response message is message 4 or message B in the random access process. The terminal equipment acquires the response message including the terminal identification from the plurality of response messages through the terminal identification.

303. The terminal equipment acquires the response message and carries indication information of data receiving or data sending of the terminal equipment in the non-active state and indication information of target resources used for sending or receiving the data.

The indication information for data receiving or data sending of the terminal device in the inactive state is used for indicating the terminal device to perform data transmission with the network device in the inactive state. The indication information of the target resource is used for indicating the target resource used by the terminal device for data interaction with the network device in the inactive state.

In an optional implementation manner, the SRB message of the response message carries the target resource. And the terminal equipment acquires the SRB message from the response message. Further, the terminal equipment confirms that the target resource carried by the SRB message is activated according to the indication information of the target resource.

In an optional implementation manner, the indication information that the terminal device performs data transmission in the connected state is first indication information, and the indication information of the target resource is second indication information. In some embodiments, the first indication information and the second indication information are indicated by a MAC subheader of the response message, for example, by bits of a preset position in the MAC subheader for transmitting the first indication information and the second indication information. The number of bits of the preset position can be adjusted according to the actual situation, for example, the first indication information is transmitted by 1 bit, and the second indication information is transmitted by 2 bits. Further, the MAC subheader may be a MAC subheader of a successful random access response sub-protocol data unit (success rar sub-pdu). In other embodiments, in a case that the response message is the message B, the first indication information and the second indication information or a successful random access response service data unit (success rar SDU) carried by the response message indicates; in case that the response message is message 4, the first indication information and the second indication information are indicated by the MAC SDU included in the message 4. In still other embodiments, the first indication information and the second indication information are indicated by an SRB message carried in the response message, and the SRB message may be a radio resource management connection release (rrcreate) message or a radio resource control reject connection (RRCReject) message, or another RRC message newly defined, which is not limited herein.

304. And the terminal equipment uses the target resource to perform data interaction with the network equipment in the non-active state.

The target resource is a resource that the network device instructs the terminal device to perform data transmission, and may be one or more resources allocated to the terminal device exclusively or one or more resources allocated to a plurality of terminal devices in common. And the network equipment indicates the terminal equipment to carry out data interaction on the resources of the specific application. The target resource is used for data transmission between the network device and the terminal device before the network device determines that the terminal device stops using the target resource.

Fig. 4 is a flowchart of a data transmission method according to an embodiment of the present application, and as shown in fig. 4, the method is a method for data transmission by a network device. The method can comprise the following steps:

401. and the network equipment receives the terminal identification sent by the terminal equipment through the random access process.

And the network equipment receives the terminal identification sent by the terminal equipment through a random access process in the non-active state. The terminal identity is carried by message 3 or message a in the random access procedure.

402. The network device sends a response message including the terminal identification to the terminal device.

The response message is message 4 or message B in the random access process. The response message comprises indication information of data receiving or data sending of the terminal equipment in the inactive state and indication information of target resources used for sending or receiving data.

403. And the network equipment uses the target resource to perform data interaction with the terminal equipment in the inactive state.

Fig. 5 is a flowchart of a data transmission method provided in an embodiment of the present application, and as shown in fig. 5, the method illustrates an interaction process between a network device and a terminal device, and further refines and refines the methods illustrated in fig. 3 and fig. 4. The method can comprise the following steps:

501. and the terminal equipment receives the system information or the SRB message sent by the network equipment.

The system information or the SRB message carries resource allocation required for data reception or data transmission by the terminal device in an inactive state. In some embodiments, the resource configuration is a configuration required for dynamic scheduling (dynamic scheduling) monitoring of the PDCCH, and the configuration includes a search space configuration in which the PDCCH is monitored. In some embodiments, the resource configuration is a configuration of a dedicated resource (CG), or is a configuration of a semi-persistent scheduling (SPS) resource for downlink transmission, or is a configuration of a CG resource and an SPS resource indicator.

502. And the terminal equipment sends the terminal identification to the network equipment.

503. The network device sends a response message including the terminal identification to the terminal device.

The response message is message 4 or message B in the random access process. The response message comprises indication information of data receiving or data sending of the terminal equipment in the inactive state and indication information of target resources used for sending or receiving data. The response message includes a terminal identifier indicating that the response message includes information sent by the network device to the terminal device. The information sent by the network device to the terminal device may be indication information for the terminal device to perform data reception or data transmission in an inactive state, indication information for a target resource used for transmitting or receiving data, or an SRB message of the terminal device.

504. The terminal equipment acquires the response message and carries indication information of data receiving or data sending of the terminal equipment in the non-active state and indication information of target resources used for sending or receiving the data.

In one implementation, the target resource includes one of a set of search spaces in which a terminal device listens to a Physical Uplink Control Channel (PUCCH). The search space set is at least one search space acquired by the terminal device from the system information or the SRB message.

It should be noted that, the network device may configure dedicated uplink configuration information for the terminal device through the system information or the SRB message, where the dedicated uplink configuration information includes a physical uplink control channel configuration (pucch-Config) and a physical uplink shared channel configuration (pusch-Config); the dedicated downlink configuration information includes a physical downlink control channel configuration (pdcch-Config) and a physical downlink shared channel configuration (pdcch-Config).

The network device may configure the common uplink configuration information and/or the common downlink configuration information to the terminal device through the system information or the SRB message. Wherein, the common uplink configuration information includes a physical uplink control channel common configuration (pucch-ConfigCommon) and a physical uplink shared channel common configuration (pusch-ConfigCommon); the common downlink configuration information includes a physical downlink control channel common configuration (pdcch-ConfigCommon) and a physical downlink shared channel common configuration (pdcch-ConfigCommon).

Wherein the search space set is contained in pdcch-Config or pdcch-ConfigCommon.

In this implementation manner, in a case that the search space set includes one search space, the target resource is the search space, and the indication information of the target resource is an activation identifier of the search space, and is used to indicate the terminal device to confirm that the search space is activated; and under the condition that the search space set comprises at least two search spaces, the indication information of the target resource is an index identifier of the target resource and is used for indicating the terminal equipment to determine the target resource in the at least two search spaces.

In another implementation, the target resource terminal device obtains a group of time-frequency resources from the time-frequency resource set; the time frequency resource set is at least one group of time frequency resources acquired by the terminal equipment from system information or Signaling Radio Bearer (SRB) information; the time frequency resource is an uplink time frequency resource or a downlink time frequency resource; the time frequency resource can be uplink time frequency resource and downlink time frequency resource.

In some embodiments, the set of uplink time-frequency resources is a set of uplink grant free (CG) resources, and is carried by configuration grant information (config grant configuration). The uplink unlicensed resource includes all parameters required for uplink transmission, such as time domain resources, frequency domain resources, periodicity (periodicity), hybrid automatic repeat request (HARQ) processes, repetition times, and coding and modulation scheme (MCS) parameters. The multiple groups of uplink time-frequency resources can be distinguished by configuring different values for the same parameter.

In some embodiments, the set of downlink time-frequency resources is a set of semi-persistent scheduling (SPS) resource indications. The SPS resource indication is carried by SPS configuration information. The SPS resource indication includes parameters such as periodicity, HARQ process, and MCS. The multiple groups of downlink time-frequency resources can be distinguished by configuring different values for the same parameter. The terminal device obtains a group of SPS resource indications from the SPS configuration information carried by the system information or the SRB information, and the SPS resource used for receiving the data of the terminal device is further determined by the resource receiving the response message.

In this implementation, in a case that the time-frequency resource set includes one time-frequency resource, the target resource is the time-frequency resource. The indication information of the target resource is an activation identifier of the target resource, and is used for indicating the terminal device to confirm that the time-frequency resource is activated, for example, a group of SPS resources is activated, or a group of CG resources is activated, or a group of SPS resources and a group of CG resources are activated. And under the condition that the time-frequency resource set comprises at least two time-frequency resources, the indication information of the target resource is an index identifier of the target information, and is used for indicating the terminal equipment to determine the target resource from the at least two time-frequency resources and indicate that the target resource is activated.

505. And the terminal equipment uses the target resource to perform data interaction with the network equipment in the non-active state.

The target resource is an exclusive resource allocated by the network device to the terminal device for data transmission, and the target resource is only used for data transmission between the network device and the terminal device before the network device determines that the terminal device stops using the target resource.

And under the condition that the target resource comprises one search space, the terminal equipment monitors the PDCCH through the indicated search space to receive the indication information of the PDSCH scheduling resource and/or the indication information of the PUSCH scheduling resource carried by the network equipment through the PDCCH. The indication information of the PDSCH scheduling resources is used for indicating the terminal equipment to determine the PDSCH resources, and the terminal receives data on the corresponding PDSCH resources. And the indication information of the PUSCH scheduling resources is used for indicating the terminal equipment to determine the PUSCH resources, and the terminal sends uplink data on the corresponding PUSCH resources.

And under the condition that the target resource comprises a group of time-frequency resources, the terminal equipment uses the time-frequency resources to carry out data interaction with the network equipment. The time frequency resource is an uplink time frequency resource or a downlink time frequency resource, and the time frequency resource is an uplink time frequency resource or a downlink time frequency resource. And under the condition that the uplink time-frequency resource is the uplink authorization-free resource, the terminal equipment acquires a group of uplink authorization-free resources from the system information or the configuration authorization information carried by the SRB message, and transmits uplink data by using the uplink authorization-free resources. Under the condition that the downlink time-frequency resource is indicated by the SPS resource, the terminal equipment can receive the downlink data by taking the frequency domain resource position used for receiving the response message as the frequency domain resource position of the SPS resource. The terminal device receives the downlink data either by using the frequency domain resource position used for receiving the response message as the frequency domain resource position of the SPS resource offset by an offset amount (offset).

506. And when finishing the transmission of the uplink data, the terminal equipment sends an uplink data transmission ending identifier to the network equipment.

The uplink data transmission ending identifier is used for indicating that the network equipment terminal equipment stops using the target resource to transmit data. After finishing the transmission of the uplink data, the terminal equipment stops using the target resource to send the data, does not need to apply for resources for many times, and can reduce the time delay of data transmission. In some embodiments, the uplink data transmission end identifier is an uplink data bearer sent by the terminal device, and may be indicated by an end marker (end marker) of a data header in the uplink data, or by other position indications of the uplink data, which is not limited herein.

In another optional implementation manner, the terminal device does not send uplink data to the network device within the second period, so as to indicate that the network device has stopped sending data using the target resource. In the implementation manner, the network device sets a timer (timer), and when the network device receives the uplink data sent by the terminal device within the second period, the timer restarts timing; and if the timing duration of the timer of the network equipment exceeds the duration of the second period and the network equipment does not receive the uplink data within the timing duration, the network equipment determines that the terminal equipment stops using the target resource to send the data. The duration and the measurement unit of the second period may be set according to specific situations, and are not limited herein.

507. After receiving the uplink data transmission ending identifier sent by the terminal equipment, the network equipment determines that the terminal equipment stops using the target resource to send data.

After the network device determines that the terminal device stops using the target resource to send data, the resource indicated by the target resource and used for uplink transmission is released. The network device can allocate the target resource to other terminal devices to transmit data.

508. And after the network equipment completes the transmission of the downlink data, sending a downlink data transmission ending identifier to the terminal equipment. The downlink data transmission ending identifier is used for indicating the terminal equipment to stop using the target resource to receive data.

In some embodiments, the network device may further indicate a downlink data transmission end identifier through Downlink Control Information (DCI) transmitted through the PDCCH. In other embodiments, the network device indicates the end of downlink data transmission identifier by sending downlink data to the terminal device, for example, by indicating an end marker (end marker) of a data packet header in the downlink data.

509. And after receiving the downlink data transmission ending identifier sent by the network equipment, the terminal equipment stops using the target resource to receive data.

In another optional implementation manner, if the terminal device does not receive the downlink data sent by the network device within the first period, the terminal device stops receiving data using the target resource. In the implementation mode, the terminal equipment sets a timer, and when the terminal equipment receives downlink data sent by the network equipment in a first period, the timer of the terminal equipment restarts timing; and when the timing duration of the timer of the terminal equipment exceeds the duration of the first period and the terminal equipment does not receive the downlink data within the timing duration, the terminal equipment stops using the target resource to receive the data. The duration and the measurement unit of the first period can be set according to specific situations, and are not limited herein.

Fig. 6 is a terminal device according to an embodiment of the present application, and as shown in fig. 6, the terminal device may include:

a sending unit 601, configured to send a terminal identifier to a network device through a random access procedure.

A receiving unit 602, configured to receive a response message that includes a terminal identifier and is sent by a network device.

An obtaining unit 603, configured to obtain an indication information that the response message carries data reception or data transmission by the terminal device in an inactive state, and an indication information of a target resource used for transmitting or receiving data.

And a data interaction unit 604, configured to perform data interaction with the network device using the target resource in the inactive state.

In an alternative implementation, the target resource includes: the terminal equipment acquires a group of time-frequency resources from the time-frequency resource set; the time-frequency resource set is at least one group of time-frequency resources acquired by the terminal equipment from system information or SRB information; the time frequency resource is an uplink time frequency resource or a downlink time frequency resource; the time frequency resource can be uplink time frequency resource and downlink time frequency resource.

In an alternative implementation, the target resource includes: the method comprises the steps that terminal equipment monitors a search space in a search space set where a PDCCH is located; the search space set is at least one search space acquired by the terminal device from the system information or the SRB message.

In an optional implementation manner, the indication information of the target resource is an index identifier of the target resource, and the index identifier is used for the terminal device to determine the target resource from at least two groups of time-frequency resources or from at least two search spaces.

In an optional implementation manner, the indication information of the target resource is an activation identifier of the target resource; the activation flag is used to instruct the terminal device to confirm that a group of time-frequency resources is activated, or to confirm that a search space is activated.

In an optional implementation manner, the receiving unit 602 is further configured to receive system information or an SRB message sent by the network device.

In an alternative implementation, the SRB message is carried by a response message received by the terminal device.

In an optional implementation manner, the indication information of the target resource and the indication information for data reception or data transmission in the inactive state are indicated by a successful random access response service data unit in the response message, or an MAC subheader of the response message or an SRB message carried in the response message.

In an optional implementation manner, the sending unit 601 is further configured to send an uplink data transmission end identifier to the network device when the transmission of the uplink data is completed, and instruct the network device terminal device to stop sending data using the target resource. The receiving unit 602 is further configured to stop receiving data using the target resource after receiving the downlink data transmission end identifier sent by the network device.

In an optional implementation manner, the downlink data transmission end identifier is a downlink data bearer received through the PDCCH or the terminal device; the uplink data transmission end identifier is carried by uplink data sent by the terminal equipment.

In an optional implementation manner, the receiving unit 602 is further configured to stop receiving data using the target resource if the data sent by the network device is not received within the first period.

Fig. 7 is a network device according to an embodiment of the present application, and as shown in fig. 7, the network device may include:

a receiving unit 701, configured to receive a terminal identifier sent by a terminal device through a random access procedure.

A sending unit 702, configured to send a response message including a terminal identifier to a terminal device; the response message comprises indication information of data receiving or data sending of the terminal equipment in the inactive state and indication information of target resources used for sending or receiving data.

A data interaction unit 703, configured to perform data interaction with the terminal device in the inactive state by using the target resource.

In an alternative implementation, the target resource includes: the network equipment indicates a group of time frequency resources acquired by the terminal equipment from the time frequency resource set; the time frequency resource set is at least one group of time frequency resources borne by the network equipment through system information or SRB information; the time frequency resource is an uplink time frequency resource or a downlink time frequency resource; the time frequency resource can be uplink time frequency resource and downlink time frequency resource.

In an alternative implementation, the target resource includes: the network equipment indicates the terminal equipment to monitor one search space in the search space set where the PDCCH is located; the search space set is at least one search space carried by the network device through system information or an SRB message.

In an optional implementation manner, the indication information of the target resource is an index identifier of the target resource; the index mark is used for the network equipment to indicate the terminal equipment to determine a target resource from at least two groups of time frequency resources; the index identifies or is used by the network device to instruct the terminal device to determine the target resource from at least two search spaces.

In an optional implementation manner, the indication information of the target resource is an activation identifier of the target resource; the activation identifier is used for indicating the terminal equipment to activate a group of time-frequency resources by the network equipment; the activation flag or the indication for the network device indicates to the terminal device that a search space is activated.

In an optional implementation manner, the sending unit 702 is further configured to send system information or an SRB message to the terminal device.

In an alternative implementation, the SRB message is carried by response information sent by the network device.

In an optional implementation manner, the sending unit 702 is further configured to send, after the transmission of the downlink data, a downlink data transmission end identifier to the terminal device, and instruct the terminal device to stop receiving the data by using the target resource. The network device further includes a determining unit 704, configured to determine that the terminal device stops sending data using the target resource after receiving the uplink data transmission end identifier sent by the terminal device.

In an optional implementation manner, the downlink data transmission end identifier is a downlink data bearer sent through the PDCCH or the network device; the uplink data transmission identifies an uplink data bearer received through the network device.

In an alternative implementation, the determining unit 704 is further configured to determine that the terminal device stops receiving data using the target resource if the network device does not send data to the terminal device within the first period.

It should be understood that the above division of the modules of the terminal device and the network device is only a division of logical functions, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. For example, the above modules may be processing elements which are set up separately, or may be implemented by integrating the same chip, or may be stored in a storage element of the controller in the form of program codes, and a certain processing element of the processor calls and executes the functions of the above modules. In addition, the modules can be integrated together or can be independently realized. The processing element may be an integrated circuit chip having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software. The processing element may be a general-purpose processor, such as a Central Processing Unit (CPU), or may be one or more integrated circuits configured to implement the above method, such as: one or more application-specific integrated circuits (ASICs), one or more microprocessors (DSPs), one or more field-programmable gate arrays (FPGAs), etc.

Referring next to another network device provided in an embodiment of the present application, referring to fig. 8, a network device 800 includes:

a receiver 801, a transmitter 802, a processor 803, and a memory 804 (wherein the number of processors 803 in the network device 800 may be one or more, one processor is taken as an example in fig. 8). In some embodiments of the present application, the receiver 801, the transmitter 802, the processor 803 and the memory 804 may be connected by a bus or other means, wherein fig. 8 illustrates the connection by a bus.

The memory 804 may include a read-only memory and a random access memory, and provides instructions and data to the processor 803. A portion of the memory 804 may also include non-volatile random access memory (NVRAM). The memory 804 stores an operating system and operating instructions, executable modules or data structures, or a subset or an expanded set thereof, wherein the operating instructions may include various operating instructions for performing various operations. The operating system may include various system programs for implementing various basic services and for handling hardware-based tasks.

The processor 803 controls the operation of the network device, and the processor 803 may also be referred to as a Central Processing Unit (CPU). In a particular application, the various components of the network device are coupled together by a bus system that may include a power bus, a control bus, a status signal bus, etc., in addition to a data bus. For clarity of illustration, the various buses are referred to in the figures as a bus system.

The method disclosed in the embodiments of the present application can be applied to the processor 803 or implemented by the processor 803. The processor 803 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 803. The processor 803 may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 804, and the processor 803 reads the information in the memory 804 to complete the steps of the method in combination with the hardware thereof.

The receiver 801 may be configured to receive input numeric or character information and generate signal inputs related to related settings and function control of the network device, the transmitter 802 may include a display device such as a display screen, and the transmitter 802 may be configured to output numeric or character information through an external interface.

In this embodiment of the present application, the processor 803 is configured to execute the data transmission method executed by the network device side.

Referring to another terminal device provided in the embodiment of the present application, referring to fig. 9, a terminal device 900 includes:

a receiver 901, a transmitter 902, a processor 903 and a memory 904 (wherein the number of processors 903 in the terminal device 900 may be one or more, one processor is taken as an example in fig. 9). In some embodiments of the present application, the receiver 901, the transmitter 902, the processor 903 and the memory 904 may be connected by a bus or other means, wherein fig. 9 exemplifies connection by a bus.

The memory 904 may include both read-only memory and random-access memory, and provides instructions and data to the processor 903. A portion of the memory 904 may also include NVRAM. The memory 904 stores an operating system and operating instructions, executable modules or data structures, or a subset or an expanded set thereof, wherein the operating instructions may include various operating instructions for performing various operations. The operating system may include various system programs for implementing various basic services and for handling hardware-based tasks.

The processor 903 controls the operation of the terminal device, and the processor 903 may also be referred to as a CPU. In a specific application, the various components of the terminal device are coupled together by a bus system, wherein the bus system may include a power bus, a control bus, a status signal bus, etc., in addition to a data bus. For clarity of illustration, the various buses are referred to in the figures as a bus system.

The method disclosed in the embodiments of the present application may be applied to the processor 903, or implemented by the processor 903. The processor 903 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 903. The processor 903 may be a general purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 904, and the processor 903 reads information in the memory 904 and performs the steps of the above method in combination with hardware thereof.

In this embodiment, the processor 903 is configured to execute the data transmission method executed by the terminal device side.

In an embodiment of the present application, there is provided a computer-readable storage medium having one or more instructions stored thereon, which when executed by a processor, implement: sending a terminal identification to the network equipment through a random access process; receiving a response message which is sent by the network equipment and comprises the terminal identification; acquiring the response message carrying indication information of data receiving or data sending of the terminal equipment in an inactive state and indication information of a target resource used for sending or receiving data; and performing data interaction with the network equipment by using the target resource in the inactive state.

There is also provided, in an embodiment of the present application, another computer-readable storage medium, having one or more instructions stored thereon, which when executed by a processor, implement: receiving a terminal identification sent by a terminal device through a random access process; sending a response message including the terminal identification to the terminal equipment; the response message comprises indication information of data receiving or data sending of the terminal equipment in an inactive state and indication information of target resources used for sending or receiving data; and performing data interaction with the terminal equipment in the inactive state by using the target resource.

The above is only a specific embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of data transmission, comprising:

the terminal equipment sends a terminal identification to the network equipment through a random access process;

the terminal equipment receives a response message which is sent by the network equipment and comprises the terminal identification;

the terminal equipment acquires indication information carried by the response message, which indicates that the terminal equipment receives or sends data in an inactive state, and indication information of target resources used for sending or receiving the data;

the terminal equipment uses the target resource to perform data interaction with the network equipment in the non-active state;

when the terminal equipment completes the transmission of uplink data, sending an uplink data transmission ending identifier to the network equipment, and indicating the network equipment that the terminal equipment stops using the target resource to send data;

and after receiving the downlink data transmission ending identifier sent by the network equipment, the terminal equipment stops using the target resource to receive data.

2. The method of claim 1, wherein the target resource comprises:

the terminal equipment acquires a group of time-frequency resources from the time-frequency resource set;

the time frequency resource set is at least one group of time frequency resources acquired by the terminal equipment from system information or Signaling Radio Bearer (SRB) information;

the time frequency resource is an uplink time frequency resource or a downlink time frequency resource; the time frequency resource is the uplink time frequency resource and the downlink time frequency resource.

3. The method of claim 1, wherein the target resource comprises:

the terminal equipment monitors a search space in a search space set where a Physical Downlink Control Channel (PDCCH) is located;

the search space set is at least one search space acquired by the terminal device from system information or SRB messages.

4. The method according to claim 2, wherein the indication information of the target resource is an index identifier of the target resource, and the index identifier is used for the terminal device to determine the target resource from at least two groups of the time-frequency resources.

5. The method according to claim 3, wherein the indication information of the target resource is an index identifier of the target resource, and the index identifier is used for the terminal device to determine the target resource from at least two of the search spaces.

6. The method according to claim 2, wherein the indication information of the target resource is an activation identifier of the target resource;

the activation identifier is used for indicating the terminal equipment to confirm that a group of time-frequency resources are activated.

7. The method according to claim 3, wherein the indication information of the target resource is an activation identifier of the target resource;

the activation identifier is used for indicating the terminal equipment to confirm that one search space is activated.

8. The method according to claim 2 or 3, wherein before the terminal device sends the terminal identity to the network device through the random access procedure, the method further comprises:

and the terminal equipment receives the system information or the SRB message sent by the network equipment.

9. A method according to claim 2 or 3, wherein the SRB message is carried by the response message received by the terminal device.

10. The method of claim 1, wherein the indication information of the target resource and the indication information of the terminal device for data reception or data transmission in an inactive state indicate through a successful random access response service data unit in the response message, or a random access control MAC subheader of the response message or an SRB message carried by the response message.

11. The method of claim 1, wherein the downlink data transmission end identifier identifies a downlink data bearer received through the PDCCH or the terminal device;

and the uplink data transmission ending identifier is carried by uplink data sent by the terminal equipment.

12. The method of claim 1, wherein after the terminal device performs data interaction with the network device using the target uplink and downlink resource in the inactive state, the method further comprises:

and under the condition that the terminal equipment does not receive the data sent by the network equipment in the first period, the terminal stops receiving the data by using the target resource.

13. A method of data transmission, comprising:

the network equipment receives a terminal identification sent by the terminal equipment through a random access process;

the network equipment sends a response message including the terminal identification to the terminal equipment; the response message comprises indication information of subsequent data receiving or data sending of the terminal equipment in an inactive state and indication information of target resources used for sending or receiving data;

the network equipment uses the target resource to perform data interaction with the terminal equipment in the inactive state;

after the network equipment completes the transmission of the downlink data, sending a downlink data transmission ending identifier to the terminal equipment, and indicating the terminal equipment to stop using the target resource to receive the data;

and after receiving the uplink data transmission ending identifier sent by the terminal equipment, the network equipment determines that the terminal equipment stops using the target resource to send data.

14. The method of claim 13, wherein the target resource comprises:

the network equipment indicates a group of time frequency resources acquired by the terminal equipment from a time frequency resource set;

the time frequency resource set is at least one group of time frequency resources borne by the network equipment through system information or Signaling Radio Bearer (SRB) information;

the time frequency resource is an uplink time frequency resource or a downlink time frequency resource; the time frequency resource can be uplink time frequency resource and downlink time frequency resource.

15. The method of claim 13, wherein the target resource comprises:

the network equipment indicates the terminal equipment to monitor a search space in a search space set in which a Physical Downlink Control Channel (PDCCH) is located;

the search space set is at least one search space carried by the network device through system information or an SRB message.

16. The method according to claim 14, wherein the indication information of the target resource is an index identifier of the target resource;

the index identifier is used for the network equipment to instruct the terminal equipment to determine the target resource from at least two groups of the time frequency resources.

17. The method according to claim 15, wherein the indication information of the target resource is an index identifier of the target resource;

the index identifier is used for the network device to instruct the terminal device to determine the target resource from at least two search spaces.

18. The method according to claim 14, wherein the indication information of the target resource is an activation identifier of the target resource;

the activation identifier is used for the network device to indicate that a group of the time-frequency resources of the terminal device is activated.

19. The method according to claim 15, wherein the indication information of the target resource is an activation identifier of the target resource;

the activation identifier is used for the network device to indicate the terminal device that one search space is activated.

20. The method according to claim 14 or 15, wherein before the network device receives the terminal identifier sent by the terminal device through the random access procedure, the method further comprises:

and the network equipment sends the system information or the SRB message to the terminal equipment.

21. The method according to claim 14 or 15, wherein the SRB message is carried by response information sent by the network device.

22. The method of claim 13, wherein the indication information of the target resource and the indication information of data reception or data transmission in the inactive state are indicated by a successful random access response service data unit in the response message, or a MAC subheader of the response message or an SRB message carried by the response message.

23. The method of claim 13, wherein the end of downlink data transmission identifies a downlink data bearer sent through the PDCCH or the network device;

and the uplink data transmission ending identifier is carried by uplink data received by the network equipment.

24. The method of claim 13, wherein after the network device uses the target resource for data interaction with the terminal device in the inactive state, the method further comprises:

and under the condition that the network equipment does not send data to the terminal equipment within the first period, the network equipment determines that the terminal equipment stops using the target resource to receive the data.

25. A terminal device, comprising:

a sending unit, configured to send a terminal identifier to a network device through a random access procedure;

a receiving unit, configured to receive a response message including the terminal identifier sent by the network device;

an obtaining unit, configured to obtain indication information that the response message carries data reception or data transmission performed by the terminal device in an inactive state, and indication information of a target resource used for transmitting or receiving data;

the data interaction unit is used for performing data interaction with the network equipment by using the target resource in the inactive state;

the sending unit is further configured to send an uplink data transmission end identifier to the network device when transmission of uplink data is completed, and instruct the network device terminal device to stop sending data using the target resource;

the receiving unit is further configured to stop receiving data using the target resource after receiving the downlink data transmission end identifier sent by the network device.

26. A network device, comprising:

a receiving unit, configured to receive a terminal identifier sent by a terminal device through a random access process;

a sending unit, configured to send a response message including the terminal identifier to the terminal device; the response message comprises indication information of data receiving or data sending of the terminal equipment in an inactive state and indication information of target resources used for sending or receiving data;

the data interaction unit is used for performing data interaction with the terminal equipment in the inactive state by using the target resource;

the sending unit is further configured to send a downlink data transmission end identifier to the terminal device after transmission of the downlink data, and instruct the terminal device to stop receiving data using the target resource;

and the determining unit is used for determining that the terminal equipment stops using the target resource to send the data after receiving the uplink data transmission ending identifier sent by the terminal equipment.

27. A terminal device comprising a receiver and a transmitter, characterized by further comprising:

a processor adapted to implement one or more instructions; and the number of the first and second groups,

a computer storage medium having stored thereon one or more instructions adapted to be loaded by the processor and to execute the data transfer method of any of claims 1 to 12.

28. A network device comprising a receiver and a transmitter, further comprising:

a computer storage medium having stored thereon one or more instructions adapted to be loaded by the processor and to carry out a data transfer method according to any of claims 13 to 24.

29. A computer storage medium having stored thereon one or more instructions adapted to be loaded by a processor and to perform a data transfer method according to any of claims 1 to 12.

30. A computer storage medium having stored thereon one or more instructions adapted to be loaded by a processor and to carry out a data transfer method according to any one of claims 13 to 24.