CN113260081B

CN113260081B - Data transmission processing method, device and storage medium

Info

Publication number: CN113260081B
Application number: CN202010091071.2A
Authority: CN
Inventors: 赵亚利; 曾二林; 梁靖
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2023-05-30
Anticipated expiration: 2040-02-13
Also published as: CN113260081A; WO2021159957A1

Abstract

The embodiment of the invention provides a data transmission processing method, a data transmission processing device and a storage medium. The method comprises the steps of receiving first indication information sent by a network, and entering an RRC inactive state according to the first indication information; the first indication information carries non-contention random access special configuration information; and when the data transmission requirement exists in the RRC inactive state, initiating a random access process based on the non-contention random access special configuration information, and transmitting data through the random access process. According to the data transmission processing method, the device and the storage medium provided by the embodiment of the invention, the terminal can enter the RRC inactive state after receiving the indication information sent by the network, and the data transmission is performed through the random access process initiated by the non-contention random access special configuration information in the RRC inactive state, so that the terminal is prevented from entering the RRC connected state due to small data transmission, the signaling overhead can be reduced, and the time delay requirement of the service can be better met.

Description

Data transmission processing method, device and storage medium

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a data transmission processing method, apparatus, and storage medium.

Background

The 5G random access procedure includes two types: four-step random access with Msg1 and two-step random access with MsgA, respectively. Both types of random access support Contention random access (CBRA) and non-Contention random access (Contention-free Random Access, CFRA).

For small data transmission in the INACTIVE state, the contention random access is used in the prior art to implement small data transmission in the radio resource control (Radio Resource Control, RRC) INACTIVE (INACTIVE) state, but the contention may fail, which is detrimental to the quality of service (Quality of Service, qoS) satisfaction. It is therefore necessary to consider how to implement small data transmission using a non-contention random access procedure in an RRC inactive state.

Disclosure of Invention

Aiming at the problems existing in the prior art, the embodiment of the invention provides a data transmission processing method, a data transmission processing device and a storage medium.

In a first aspect, an embodiment of the present invention provides a data transmission processing method, including:

receiving first indication information sent by a network, and entering an RRC inactive state according to the first indication information; wherein, the first indication information carries non-contention random access dedicated configuration information;

And when the data transmission requirement exists in the RRC inactive state, initiating a random access process based on the non-contention random access special configuration information, and transmitting data through the random access process.

Optionally, the initiating a random access procedure based on the non-contention-based random access dedicated configuration information includes:

if the non-contention based random access dedicated configuration information only includes two steps of non-contention based random access dedicated configuration information, initiating a two steps of non-contention based random access procedure based on the two steps of non-contention based random access dedicated configuration information;

if the non-contention based random access dedicated configuration information only includes four steps of non-contention based random access dedicated configuration information, initiating a four steps of non-contention based random access procedure based on the four steps of non-contention based random access dedicated configuration information;

if the non-contention based random access dedicated configuration information includes two-step non-contention based random access dedicated configuration information and four-step non-contention based random access dedicated configuration information, selecting a random access procedure from the two-step non-contention based random access dedicated configuration information and the four-step non-contention based random access dedicated configuration information according to a preset rule.

Optionally, the preset rules include, but are not limited to, one or a combination of the following principles:

if the RSRP measurement result is larger than or equal to the RSRP threshold, initiating a two-step non-contention random access process based on the two-step non-contention random access dedicated configuration information; otherwise, initiating a four-step non-contention random access procedure based on the four-step non-contention random access dedicated configuration information; wherein the RSRP threshold is pre-configured or protocol agreed or network configured;

if a certain QoS parameter requirement of the data is greater than or equal to the QoS parameter threshold, initiating a two-step non-contention random access process based on the two-step non-contention random access dedicated configuration information; otherwise, initiating a four-step non-contention random access procedure based on the four-step non-contention random access dedicated configuration information; wherein the QoS parameter threshold is preconfigured or protocol agreed or network configured;

if the data amount corresponding to the data is larger than the data amount which can be borne by the two-step non-contention random access PUSCH, initiating a four-step non-contention random access process based on the four-step non-contention random access dedicated configuration information; otherwise, initiating a two-step non-contention random access procedure based on the two-step non-contention random access dedicated configuration information.

Optionally, the transmitting data through the random access procedure includes:

for a two-step non-contention random access process initiated based on the two-step non-contention random access dedicated configuration information, transmitting data by using an uplink physical layer shared channel (PUSCH) corresponding to the MsgA;

and for a four-step non-contention random access process initiated based on the four-step non-contention random access dedicated configuration information, transmitting data by using an uplink physical layer shared channel (PUSCH) allocated in a random access response message.

Optionally, the method further comprises:

if the random access process is a two-step non-contention random access process, the terminal receives a random access response message MsgB sent by a network, wherein the MsgB carries second indication information, and the second indication information is used for indicating the terminal to release RRC connection; or (b)

If the random access process is a two-step non-contention random access process, the terminal continues to receive second indication information after receiving a random access response message MsgB sent by the network, where the second indication information is used to instruct the terminal to release RRC connection; or (b)

If the random access process is a four-step non-contention random access process, the terminal continues to receive the RRC connection release message sent by the network after performing data transmission by using the PUSCH resource allocated by the random access response message.

Optionally, if the random access procedure is a two-step non-contention random access procedure, the terminal receives a random access response message MsgB sent by the network, where the MsgB carries the second indication information in the step of:

the second indication information is carried in a MAC sub-header corresponding to the random access response message MsgB or the random access response message MsgB.

Optionally, the method further comprises:

for two-step non-contention random access, the configuration information of the two-step non-contention random access special purpose at least comprises a random access special preamble and PRACH related configuration information or at least comprises a random access special purpose preamble, PRACH and Msg A PUSCH related configuration information;

for the four-step non-contention random access, the configuration information of the four-step non-contention random access special purpose at least comprises a random access special preamble and PRACH related configuration information.

Optionally, the first indication information Wie carries an RRC release message of a supendconfig.

In a second aspect, an embodiment of the present invention provides a data transmission processing method, including:

sending first indication information to a terminal to indicate the terminal to enter an RRC inactive state; the first indication information carries non-contention random access special configuration information, so that when the terminal has data transmission requirements in the RRC inactive state, a random access process is initiated based on the non-contention random access special configuration information, and data is transmitted through the random access process.

Optionally, the non-contention-based random access dedicated configuration information includes two-step non-contention-based random access dedicated configuration information and/or four-step non-contention-based random access dedicated configuration information; accordingly, the transmitting data through the random access procedure includes:

Optionally, the method further comprises:

if the random access process is a two-step non-contention random access process, a random access response message MsgB is sent to the terminal, wherein the MsgB carries second indication information, and the second indication information is used for indicating the terminal to release RRC connection; or (b)

If the random access process is a two-step non-contention random access process, continuing to send second indication information after sending a random access response message MsgB to the terminal, wherein the second indication information is used for indicating the terminal to release RRC connection; or (b)

If the random access process is a four-step non-contention random access process, the terminal continues to send an RRC connection release message to the terminal after performing data transmission by using the PUSCH resource allocated by the random access response message.

Optionally, the random access procedure is a two-step non-contention random access procedure, and the random access response message MsgB is sent to the terminal, where the MsgB carries the second indication information in the step of:

Optionally, the method further comprises:

Optionally, the first indication information is an RRC release message carrying a suspend config.

In a third aspect, an embodiment of the present invention provides a terminal, including:

the receiving module is used for receiving first indication information sent by a network and entering an RRC inactive state according to the first indication information; wherein, the first indication information carries non-contention random access dedicated configuration information;

and the processing module is used for initiating a random access process based on the non-contention random access special configuration information when the data transmission requirement exists in the RRC inactive state, and transmitting data through the random access process.

In a fourth aspect, an embodiment of the present invention provides another terminal, including a memory, a processor, and a program stored in the memory and executable on the processor, where the processor implements the following steps when executing the program:

Optionally, the transmitting data through the random access procedure includes:

Optionally, the steps further include:

In a fifth aspect, an embodiment of the present invention provides a network device, including:

the indication module is used for sending first indication information to the terminal so as to indicate the terminal to enter an RRC inactive state; the first indication information carries non-contention random access special configuration information, so that when the terminal has data transmission requirements in the RRC inactive state, a random access process is initiated based on the non-contention random access special configuration information, and data is transmitted through the random access process.

In a sixth aspect, an embodiment of the present invention provides another network device, including a memory, a processor, and a program stored on the memory and executable on the processor, where the processor implements the following steps when executing the program:

Optionally, the steps further include:

In a seventh aspect, embodiments of the present invention provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to the first aspect.

In an eighth aspect, embodiments of the present invention provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to the second aspect.

According to the data transmission processing method, the device and the storage medium provided by the embodiment of the invention, the terminal can enter the RRC inactive state after receiving the indication information sent by the network, and the data transmission is performed through the random access process initiated by the non-contention random access special configuration information in the RRC inactive state, so that the terminal is prevented from entering the RRC connected state due to small data transmission, the signaling overhead can be reduced, and the time delay requirement of a service can be better met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic flow chart of a data transmission processing method according to an embodiment of the invention;

fig. 2 is a flow chart of a data transmission processing method according to another embodiment of the present invention;

fig. 3 is a flowchart of a data transmission processing method according to another embodiment of the present invention;

fig. 4 is a flow chart of a data transmission processing method according to another embodiment of the present invention;

fig. 5 is a schematic diagram of a terminal according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a terminal according to another embodiment of the present invention;

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

fig. 8 is a schematic diagram of a network device according to another embodiment of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

A New RRC state is defined in the New Radio (NR) network: RRCINACTIVE (RRC inactive state). The network device in the radio access network may send an RRCRelease message carrying a suspend IE to a user terminal (UE) in an RRC Connected state to indicate that it enters an RRC inactive state. If small data transmission is allowed when the UE is in the RRC inactive state, frequent entry of the UE into the RRC connected state will be avoided, and signaling overhead may be reduced. However, in the prior art, contention random access is used to realize the small data transmission in the RRC inactive state for the small data transmission in the inactive state, but since contention may fail and QoS requirements may not be satisfied, embodiments of the present invention provide a solution for the small data transmission in the RRC inactive state, through which the UE may perform the small data transmission in the RRC inactive state using the non-contention random access procedure.

The core idea of each embodiment of the invention is that the network sends indication information to the terminal to indicate the terminal to enter an RRC inactive state, wherein the indication information carries non-contention random access special configuration information. When the terminal has small data transmission requirement in the inactive state, random access can be initiated based on the non-contention random access dedicated configuration information, and small data can be transmitted through a non-contention random access process. The present invention will be described in detail with reference to a plurality of examples.

Fig. 1 is a flow chart of a data transmission processing method according to an embodiment of the present invention, as shown in fig. 1, the method includes the following steps:

step 100, receiving first indication information sent by a network, and entering an RRC inactive state according to the first indication information; wherein, the first indication information carries non-contention random access dedicated configuration information;

specifically, in the embodiment of the present invention, when the terminal has no data transmission requirement on the Uu interface, the network equipment in the radio access network may send an indication message to the UE in the RRC connected state to indicate that the UE enters the RRC inactive state.

In the embodiment of the present invention, the network device may send the first indication information to the UE, and after receiving the first indication information sent by the network device, the UE may enter an RRC inactive state according to the first indication information, for example, the RRC connection state of the UE may be converted from the previous RRC connection state into the RRC inactive state. Meanwhile, the first indication information carries non-contention random access dedicated configuration information, so as to avoid entering an RRC connection state when the UE in an RRC inactive state has small data transmission requirements, and increase signaling overhead.

Step 101, when there is a data transmission requirement in the RRC inactive state, initiating a random access procedure based on the non-contention-based random access dedicated configuration information, and transmitting data through the random access procedure.

After the UE enters the RRC inactive state according to the first indication information sent by the network equipment, if the UE has data to be sent, namely, the UE has data transmission requirement in the RRC inactive state, the UE can initiate a random access process to the network according to the non-contention random access special configuration information carried in the first indication information, and the data to be sent is sent to the network in the random access process.

The embodiments of the present invention are described by taking the case that the UE needs to send small data as an example, and those skilled in the art can understand that the technical solutions of the embodiments of the present invention are not limited to the scenario of sending small data, and other data types may be also applicable. For convenience of the following discussion, embodiments of the present invention will be described with reference to small data only. The term "small data" is used as a meaning of data having a relatively small data volume, such as data corresponding to only one IP packet, and the IP packet size is only a few bytes or tens of bytes.

According to the data transmission processing method provided by the embodiment of the invention, the terminal can enter the RRC inactive state after receiving the indication information sent by the network, and the data transmission is performed through the random access process initiated by the non-contention random access special configuration information in the RRC inactive state, so that the terminal is prevented from entering the RRC connected state due to small data transmission, the signaling overhead can be reduced, and the time delay requirement of a service can be better met.

On the basis of the above embodiment, the UE initiating the random access procedure based on the non-contention random access dedicated configuration information may specifically include:

if the non-contention based random access dedicated configuration information includes only two steps of non-contention based random access dedicated configuration information, the UE may initiate a two steps of non-contention based random access procedure based on the two steps of non-contention based random access dedicated configuration information;

if the non-contention based random access dedicated configuration information includes only four steps of non-contention based random access dedicated configuration information, the UE may initiate a four steps of non-contention based random access procedure based on the four steps of non-contention based random access dedicated configuration information;

if the configuration information for non-contention random access includes two-step non-contention random access dedicated configuration information and four-step non-contention random access dedicated configuration information, the UE may select a random access procedure from the two-step non-contention random access dedicated configuration information and the four-step non-contention random access dedicated configuration information according to a preset rule.

Specifically, the resources used by the non-contention random access may be two-step non-contention random access resources and/or four-step non-contention random access resources, and specifically, the non-contention random access resources may be determined according to non-contention random access dedicated configuration information, and the UE may acquire the two-step non-contention random access resources and/or the four-step non-contention random access resources according to the non-contention random access dedicated configuration information. The non-contention-based random access dedicated configuration information carried in the first indication information specifically indicates non-contention-based random access resources, such as PRACH (physical layer random access channel, physical Random Access Channel) resources, used by the UE for non-contention based random access. When the non-contention random access dedicated configuration information includes only two steps of non-contention random access dedicated configuration information, the UE may initiate a two steps of non-contention random access procedure; when the non-contention random access dedicated configuration information includes only four steps of non-contention random access dedicated configuration information, the UE may initiate a four steps of non-contention random access procedure; when the configuration information for non-contention random access includes two-step non-contention random access dedicated configuration information and four-step non-contention random access dedicated configuration information, the UE may initiate both the two-step non-contention random access procedure and the four-step non-contention random access procedure, but needs to select one of the two-step non-contention random access procedures, and specifically selects which random access procedure, and the UE may determine according to a preset rule.

principle one: if the RSRP measurement result is larger than or equal to the RSRP threshold, initiating a two-step non-contention random access process based on the two-step non-contention random access dedicated configuration information; otherwise, initiating a four-step non-contention random access procedure based on the four-step non-contention random access dedicated configuration information; wherein the RSRP threshold is preconfigured or protocol agreed or network configured;

principle two: if a certain QoS parameter requirement of the data is greater than or equal to the QoS parameter threshold, initiating a two-step non-contention random access process based on the two-step non-contention random access dedicated configuration information; otherwise, initiating a four-step non-contention random access procedure based on the four-step non-contention random access dedicated configuration information; wherein the QoS parameter threshold is preconfigured or protocol agreed or network configured; the QoS parameters may be delay parameters or other QoS parameters.

Principle three: if the data amount corresponding to the data is larger than the data amount which can be borne by the two-step non-contention random access PUSCH, initiating a four-step non-contention random access process based on the four-step non-contention random access dedicated configuration information; otherwise, initiating a two-step non-contention random access procedure based on the two-step non-contention random access dedicated configuration information.

On the basis of the above embodiments, the UE transmitting data through the random access procedure may include the steps of:

specifically, if the UE initiates the two-step non-contention random access procedure based on the two-step non-contention random access dedicated configuration information, the UE may utilize the small data that needs to be transmitted for transmission of the PUSCH of the uplink physical layer corresponding to the MsgA message in the two-step non-contention random access procedure.

Specifically, if the UE initiates the four-step non-contention random access procedure based on the four-step non-contention random access dedicated configuration information, the UE may transmit the small data to be transmitted in the four-step non-contention random access procedure by using the uplink physical layer shared channel PUSCH allocated in the random access response message, that is, the uplink scheduling grant UL grant carried in the random access response message.

On the basis of the above embodiments, after the UE transmits the small data to be transmitted in the non-contention random access procedure, the method may further include:

if the random access process is a two-step non-contention random access process, the terminal receives a random access response message MsgB sent by the network, where the MsgB carries second indication information, where the second indication information is used to instruct the terminal to release RRC connection.

Specifically, for two-step non-contention random access, the network device may send, to the UE, second indication information carried in the random access response message MsgB to instruct the UE to release the RRC connection. Further, the second indication information may be carried in a MAC sub-header corresponding to the random access response message MsgB or the random access response message MsgB, that is, the second indication information may be carried by using the MAC sub-header of the random access response message MsgB, or the second indication information may be carried in the random access response message. The UE may acquire the second indication information through the MAC subheader of the random access response message or the random access response message and complete release of the RRC connection.

If the random access process is a two-step non-contention random access process, the terminal continues to receive second indication information after receiving a random access response message MsgB sent by the network, where the second indication information is used to instruct the terminal to release RRC connection.

Specifically, for two-step non-contention random access, the network device may send second indication information after the random access response message MsgB, instructing the UE to release the RRC connection. The UE may continue to receive the second indication information sent by the network after receiving the random access response message, and complete release of the RRC connection.

Specifically, for the four-step non-contention random access, the network device may continue to transmit the RRC connection release message to the UE after the UE performs data transmission using PUSCH resources allocated by the random access response message. Correspondingly, after the UE performs small data transmission by using the uplink resources allocated by the random access response message, the UE continues to receive the RRC connection release message sent by the network, and releases the RRC connection of the terminal.

On the basis of the above embodiments, for the two-step non-contention random access, the two-step non-contention random access dedicated configuration information may include at least a random access dedicated preamble and PRACH related configuration information, or may include at least a random access dedicated preamble, PRACH and Msg a PUSCH related configuration information.

Based on the above embodiments, for the four-step non-contention random access, the configuration information dedicated for the four-step non-contention random access may include at least a preamble dedicated for the random access and configuration information related to the PRACH.

Further, on the basis of the above embodiments, the first indication information may include, but is not limited to, an RRC release message carrying a susposdconfig.

Fig. 2 is a flow chart of a data transmission processing method according to another embodiment of the present invention, as shown in fig. 2, the method includes the following steps:

step 200, sending first indication information to a terminal to indicate the terminal to enter an RRC inactive state; the first indication information carries non-contention random access special configuration information, so that when the terminal has data transmission requirements in the RRC inactive state, a random access process is initiated based on the non-contention random access special configuration information, and data is transmitted through the random access process.

Specifically, in the embodiment of the present invention, when the terminal has no data transmission requirement on the Uu interface, the network equipment in the radio access network may send an indication message to, for example, a UE in an RRC connected state, so as to indicate that the UE enters an RRC inactive state.

According to the data transmission processing method provided by the embodiment of the invention, the network sends the indication information to the terminal to indicate the random access process initiated by the non-contention random access special configuration information to perform data transmission in the RRC inactive state, so that the terminal is prevented from entering the RRC connected state due to small data transmission, the signaling overhead can be reduced, and the time delay requirement of a service can be better met.

On the basis of the above embodiments, the non-contention based random access dedicated configuration information includes two-step non-contention based random access dedicated configuration information and/or four-step non-contention based random access dedicated configuration information; accordingly, the UE may initiate a two-step non-contention random access procedure based on the two-step non-contention random access dedicated configuration information, or may initiate a two-step non-contention random access procedure based on the four-step non-contention random access dedicated configuration information. Accordingly, the UE transmitting data through the random access procedure may include the steps of:

Specifically, if the UE initiates the two-step non-contention random access procedure based on the four-step non-contention random access dedicated configuration information, the UE may transmit the small data to be transmitted using the uplink physical layer shared channel PUSCH allocated in the random access response message in the four-step non-contention random access procedure.

Specifically, for two-step non-contention random access, the network device may send second indication information after the random access response message, instructing the UE to release the RRC connection. The UE may continue to receive the second indication information sent by the network after receiving the random access response message, and complete release of the RRC connection.

Fig. 3 is a flow chart of a data transmission processing method according to another embodiment of the present invention, in which only two steps of non-contention random access resources are indicated in first indication information, as shown in fig. 3, the method includes:

step 300, the network equipment sends first indication information to the terminal to indicate the terminal to enter an RRC inactive state;

the first indication information may be, but is not limited to, an RRC release message carrying a supendconfig. The network may carry two-step non-contention-based random access specific configuration information in the first indication information, where the random access specific configuration information includes, but is not limited to, a random access specific preamble and PRACH related configuration information or at least may include a random access specific preamble, PRACH and Msg a PUSCH related configuration information. .

Step 301, random access preamble+pusch transmission;

because the network only configures two-step non-contention random access resources in step 300, the terminal initiates random access by using the two-step non-contention random access resources, and in this step, the PUSCH resources corresponding to the message MsgA carry small data to be transmitted by the terminal.

Step 302, random access response.

The network device sends a random access response message to the terminal.

For two-step non-contention random access, further comprising:

the network device may carry second indication information in the random access response message, instruct the UE to release RRC connection, specifically may use the MAC subheader of the random access response message to carry the indication information, or may carry the second indication information in the random access response message;

alternatively, the network device may send second indication information after the random access response message, instructing the UE to release the RRC connection.

Fig. 4 is a flow chart of a data transmission processing method according to another embodiment of the present invention, where only four steps of non-contention random access resources are indicated in first indication information, as shown in fig. 4, and the method includes:

step 400, the network device sends first indication information to the terminal to indicate the terminal to enter an RRC inactive state

The first indication information may be, but is not limited to, an RRC release message carrying a supendconfig. The network may carry four-step non-contention-based random access specific configuration information in the first indication information, where the random access specific configuration information includes, but is not limited to, a random access specific preamble and PRACH related configuration information.

Step 401, random access Msg1 transmission;

since the network in step 400 is configured with only four-step non-contention random access resources, the terminal initiates random access using the four-step non-contention random access resources.

Step 402, random access response;

the network device sends a random access response message to the terminal.

Step 403, small data transmission;

for four-step non-contention random access, the terminal may transmit the small data using uplink resources allocated by the Msg2 message.

Step 404, RRC connection release.

For four-step non-contention random access, further comprising: after the terminal performs small data transmission by using the uplink resources allocated by the random access response message, the network sends an RRC connection release message to the terminal, and releases the RRC connection of the terminal.

The present invention also provides an embodiment, in which the first indication information indicates two-step and four-step non-contention random access resources in the indication information, and the method includes the following steps:

Step A, the network equipment sends first indication information to the terminal to indicate the terminal to enter an RRC inactive state

The first indication information may be, but is not limited to, an RRC release message carrying a supendconfig. The network may carry two-step and four-step non-contention-based random access specific configuration information in the first indication information, where the four-step non-contention-based random access specific configuration information includes, but is not limited to, a random access specific preamble and PRACH related configuration information; the two-step non-contention based random access dedicated configuration information includes, but is not limited to, a random access dedicated preamble and PRACH related configuration information or at least may include a random access dedicated preamble, PRACH and Msg a PUSCH related configuration information.

Step B, the terminal selects whether the small data transmission uses two-step non-competitive random access or four-step non-competitive random access;

because the two-step non-contention random access resource and the four-step non-contention random access resource are configured at the same time, the specific selection of the random access by the terminal can be one or a combination of the following principles, but is not limited to:

determining according to an RSRP threshold, if the RSRP measurement result is larger than or equal to the RSRP threshold, using two-step non-contention random access; otherwise, using four-step non-contention random access.

Selecting two-step non-competitive random access according to QoS requirements of small data service, for example, if the time delay requirements of the small data service are higher; otherwise, using four-step non-contention random access.

According to the data volume of the small data service, if the data volume is larger than the data volume which can be borne by the PUSCH of the two-step non-contention random access, selecting the four-step non-contention random access; otherwise, selecting two-step non-competitive random access.

Step C, if the terminal selects two-step non-contention random access, the subsequent steps are the same as steps 301-302 in the embodiment shown in FIG. 3; if the terminal selects a four-step non-contention random access, the subsequent steps are identical to steps 401-404 in the embodiment shown in fig. 4.

Fig. 5 is a schematic diagram of a terminal according to an embodiment of the present invention, as shown in fig. 5, the terminal includes a receiving module 501 and a processing module 502, where:

the receiving module 501 is configured to receive first indication information sent by a network, and enter an RRC inactive state according to the first indication information; wherein, the first indication information carries non-contention random access dedicated configuration information; the processing module 502 is configured to initiate a random access procedure based on the non-contention-based random access dedicated configuration information when there is a data transmission requirement in the RRC inactive state, and transmit data through the random access procedure.

Specifically, the terminal receives the first indication information sent by the network device through 501, and may enter an RRC inactive state according to the first indication information, for example, the RRC connection state of the UE may be transitioned from the previous RRC connection state to the RRC inactive state. If the UE has data to send, that is, if the UE has data transmission requirement in the RRC inactive state, the processing module 502 may initiate a random access procedure to the network according to the non-contention-free random access dedicated configuration information carried in the first indication information, and send the data to be sent to the network in the random access procedure.

The terminal provided by the embodiment of the invention can enter the RRC inactive state after receiving the indication information sent by the network, and performs data transmission through the random access process initiated by the non-contention random access special configuration information in the RRC inactive state, so that the terminal is prevented from entering the RRC connected state due to small data transmission, signaling overhead can be reduced, and the time delay requirement of a service can be better met.

Fig. 6 is a schematic diagram of a terminal according to another embodiment of the present invention, as shown in fig. 6, the terminal includes a memory 601, a processor (processor) 602, and a program stored in the memory 601 and capable of running on the processor 602, where the memory 601 and the processor 602 complete communication with each other through a communication bus 603, and when the processor 602 executes the program, the following steps are implemented: receiving first indication information sent by a network, and entering an RRC inactive state according to the first indication information; wherein, the first indication information carries non-contention random access dedicated configuration information; and when the data transmission requirement exists in the RRC inactive state, initiating a random access process based on the non-contention random access special configuration information, and transmitting data through the random access process.

Further, in an embodiment of the present invention, the initiating a random access procedure based on the non-contention-based random access dedicated configuration information includes:

Further, in the embodiment of the present invention, the preset rule includes, but is not limited to, one or a combination of the following principles:

Further, in an embodiment of the present invention, the transmitting data through the random access procedure includes:

Further, in an embodiment of the present invention, the steps further include:

Further, in the embodiment of the present invention, if the random access procedure is a two-step non-contention random access procedure, the terminal receives a random access response message MsgB sent by the network, where the MsgB carries the second indication information in the step of:

Further, in an embodiment of the present invention, the steps further include:

Further, in the embodiment of the present invention, the first indication information includes, but is not limited to, an RRC release message carrying a suspartrconfig.

Furthermore, the computer program in the memory 601 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a separate product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The method flow involved in executing the program by the processor 602 may be referred to in the above method embodiment, and will not be described herein.

Fig. 7 is a schematic diagram of a network device according to an embodiment of the present invention, as shown in fig. 7, where the network device includes an indication module 701 configured to send first indication information to a terminal, so as to indicate the terminal to enter an RRC inactive state; the first indication information carries non-contention random access special configuration information, so that when the terminal has data transmission requirements in the RRC inactive state, a random access process is initiated based on the non-contention random access special configuration information, and data is transmitted through the random access process.

The network equipment provided by the embodiment of the invention sends the indication information to the terminal to indicate the random access process initiated by the non-contention random access special configuration information to carry out data transmission in the RRC inactive state, so that the terminal is prevented from entering the RRC connected state due to small data transmission, the signaling overhead can be reduced, and the time delay requirement of the service can be better met.

Fig. 8 is a schematic diagram of a network device according to another embodiment of the present invention, as shown in fig. 8, the terminal includes a memory 801, a processor (processor) 802, and a program stored in the memory 801 and capable of running on the processor 802, where the memory 801 and the processor 802 complete communication with each other through a communication bus 803, and when the processor 802 executes the program, the following steps are implemented: sending first indication information to a terminal to indicate the terminal to enter an RRC inactive state; the first indication information carries non-contention random access special configuration information, so that when the terminal has data transmission requirements in the RRC inactive state, a random access process is initiated based on the non-contention random access special configuration information, and data is transmitted through the random access process.

Further, in the embodiment of the present invention, the configuration information for non-contention random access includes two-step configuration information for non-contention random access and/or four-step configuration information for non-contention random access; accordingly, the UE may initiate a two-step non-contention random access procedure based on the two-step non-contention random access dedicated configuration information, or may initiate a two-step non-contention random access procedure based on the four-step non-contention random access dedicated configuration information. Accordingly, the UE transmitting data through the random access procedure may include the steps of:

Further, in an embodiment of the present invention, the steps further include:

Further, in the embodiment of the present invention, the random access procedure is a two-step non-contention random access procedure, and then a random access response message MsgB is sent to the terminal, where the MsgB carries the second indication information in the steps of:

Further, in an embodiment of the present invention, the steps further include:

Further, the computer program in the memory 801 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a separate product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The method flow involved in executing the program by the processor 802 may be referred to in the above method embodiment, and will not be described herein.

The non-transitory computer readable storage medium provided by the embodiments of the present invention is specifically configured to execute the flow of the data transmission processing method provided by the embodiments of the above methods, and specific functions and flows of the flow of the data transmission processing method may be detailed in the embodiments of the above methods, which are not described herein again.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A data transmission processing method, characterized by comprising:

when data transmission is required in the RRC inactive state, initiating a random access process based on the non-contention random access dedicated configuration information, and transmitting data through the random access process;

the method further comprises the steps of:

If the random access process is a four-step non-contention random access process, the terminal continues to receive the RRC connection release message sent by the network after carrying out data transmission by using the PUSCH resource allocated by the random access response message;

the first indication information is an RRC release message carrying a supendconfig.

2. The data transmission processing method according to claim 1, wherein the initiating a random access procedure based on the non-contention-based random access dedicated configuration information includes:

3. The data transmission processing method according to claim 2, wherein the preset rules include, but are not limited to, one or a combination of the following principles:

if a certain QoS parameter requirement of the data is greater than or equal to a QoS parameter threshold, initiating a two-step non-contention random access process based on the two-step non-contention random access dedicated configuration information; otherwise, initiating a four-step non-contention random access procedure based on the four-step non-contention random access dedicated configuration information; wherein the QoS parameter threshold is preconfigured or protocol agreed or network configured;

4. The data transmission processing method according to claim 2, wherein the transmitting data through the random access procedure comprises:

5. The method of claim 1, wherein if the random access procedure is a two-step non-contention random access procedure, the terminal receives a random access response message MsgB sent by the network, and the MsgB carries the second indication information in the step of:

6. The data transmission processing method according to claim 2 or 3 or 4, characterized in that the method further comprises:

7. A data transmission processing method, characterized by comprising:

sending first indication information to a terminal to indicate the terminal to enter an RRC inactive state; the first indication information carries non-contention random access special configuration information, so that when the terminal has data transmission requirements in the RRC inactive state, a random access process is initiated based on the non-contention random access special configuration information, and data is transmitted through the random access process;

The method further comprises the steps of:

If the random access process is a four-step non-contention random access process, the terminal continues to send an RRC connection release message to the terminal after carrying out data transmission by using PUSCH resources allocated by the random access response message;

8. The data transmission processing method according to claim 7, wherein the non-contention-based random access dedicated configuration information includes two-step non-contention-based random access dedicated configuration information and/or four-step non-contention-based random access dedicated configuration information; accordingly, the transmitting data through the random access procedure includes:

9. The data transmission processing method according to claim 7, wherein the random access procedure is a two-step non-contention random access procedure, and the random access response message MsgB is sent to the terminal, and the MsgB carries the second indication information in the step of:

10. The data transmission processing method according to claim 7 or 8, characterized in that the method further comprises:

for two-step non-contention random access, the two-step non-contention random access dedicated configuration information includes at least a random access dedicated preamble and PRACH related configuration information or includes at least a random access dedicated preamble, PRACH and Msg a PUSCH related configuration information;

For the four-step non-contention random access, the four-step non-contention random access dedicated configuration information at least includes a random access dedicated preamble and PRACH related configuration information.

11. A terminal, comprising:

the processing module is used for initiating a random access process based on the non-contention random access special configuration information when the data transmission requirement exists in the RRC inactive state, and transmitting data through the random access process;

the receiving module is further configured to:

12. A terminal comprising a memory, a processor and a program stored on the memory and executable on the processor, characterized in that the processor implements the following steps when executing the program:

the steps further include:

13. The terminal of claim 12, wherein the initiating a random access procedure based on the non-contention-based random access dedicated configuration information comprises:

14. The terminal according to claim 13, wherein the preset rules include, but are not limited to, one or a combination of the following principles:

15. The terminal of claim 13, wherein the transmitting data through the random access procedure comprises:

16. The terminal according to claim 12, wherein if the random access procedure is a two-step non-contention random access procedure, the terminal receives a random access response message MsgB sent by the network, and the MsgB carries the second indication information in the step of:

17. The terminal according to claim 13 or 14 or 15, characterized in that the steps further comprise:

18. A network device, comprising:

the indication module is used for sending first indication information to the terminal so as to indicate the terminal to enter an RRC inactive state; the first indication information carries non-contention random access special configuration information, so that when the terminal has data transmission requirements in the RRC inactive state, a random access process is initiated based on the non-contention random access special configuration information, and data is transmitted through the random access process;

The indication module is further configured to:

19. A network device comprising a memory, a processor, and a program stored on the memory and executable on the processor, wherein the program when executed by the processor performs the steps of:

The steps further include:

If the random access process is a four-step non-contention random access process, the terminal continues to send an RRC connection release message to the terminal after carrying out data transmission by using PUSCH resources allocated by the random access response message; the first indication information is an RRC release message carrying a supendconfig.

20. The network device according to claim 19, wherein the non-contention-based random access specific configuration information includes two-step non-contention-based random access specific configuration information and/or four-step non-contention-based random access specific configuration information; accordingly, the transmitting data through the random access procedure includes:

21. The network device according to claim 19, wherein the random access procedure is a two-step non-contention random access procedure, and the random access response message MsgB is sent to the terminal, and the MsgB carries the second indication information in the step of:

22. The network device according to claim 19 or 20, wherein the steps further comprise:

23. A non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor implements the steps of the data transmission processing method according to any of claims 1 to 6.

24. A non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor implements the steps of the data transmission processing method according to any of claims 7 to 10.