WO2018184476A1

WO2018184476A1 - Uplink data transmission method, device, base station, user equipment and storage medium

Info

Publication number: WO2018184476A1
Application number: PCT/CN2018/080317
Authority: WO
Inventors: 艾建勋
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-04-07
Filing date: 2018-03-23
Publication date: 2018-10-11
Also published as: CN108696893A; CN108696893B

Abstract

Disclosed in the embodiment of the invention are a uplink data transmission method, device, a base station, user equipment and a storage medium, relating to the technical field of communication, for solving the problem that the congestion happened when an inactive UE initiates uplink data transmission cannot be effectively solved in the prior art. The method comprises: sending congestion control information to the inactive UE by means of a random access signaling or a system message, wherein the congestion control information is used to indicate the UE to perform congestion control when sending uplink data; and randomly accessing the UE according to a congestion control result of the UE.

Description

Uplink data transmission method, device, base station, user equipment and storage medium

Cross-reference to related applications

The present application is filed on the basis of a Chinese patent application filed on Jan.

Technical field

The present invention relates to the field of communications technologies, and in particular, to an uplink data sending method and apparatus, a base station, a user equipment (UE, User Equipment), and a storage medium.

Background technique

In the 3rd Generation Partnership Project Long Term Evolution (3GPP), a new Radio Resource Control (RRC) state is introduced, hereinafter referred to as RRC Inactive state (hereinafter). RRC inactive state). For the UE in this state, the access network element and the UE maintain the context information of the access layer (AS, Access Stratum) of the UE, and the AS context information includes the configuration information of the SRB and the DRB of the UE, and the user. Configuration information and (possible) status information of a layer protocol layer (Packet Data Convergence Protocol (PDCP) layer, Radio Link Control Protocol (RLC) layer). At the same time, the behavior of the UE is similar to that of the RRC IDLE state, that is, the radio interface does not allocate dedicated radio resources for the UE in this state.

At present, the industry has proposed a requirement for an inactive UE to send uplink data, that is, a requirement that an inactive UE sends uplink data without entering an RRC connected state. However, in this process, when the inactive UE initiates uplink data transmission but encounters congestion, there is no effective solution in the related field.

Summary of the invention

In view of the above, the embodiment of the present invention is to provide an uplink data sending method, an apparatus, a base station, a user equipment, and a storage medium, which are used to solve the problem that the UE in the inactive state in the prior art initiates uplink data transmission and encounters congestion. solved problem.

In one aspect, the embodiment of the present invention provides an uplink data sending method, including: sending, by using a random access signaling or a system message, congestion control information to an inactive user equipment, where the congestion control information is used to indicate that the user equipment is Congestion control is performed when the uplink data is sent; the user equipment is randomly accessed according to the congestion control result of the user equipment.

In the above solution, the congestion control information includes at least one of a congestion control indication parameter, a congestion control probability factor, and a congestion control duration.

In the above solution, the congestion control information is the congestion control indication parameter, and the corresponding congestion control is to indicate that the user equipment stops the random data for transmitting the uplink data when the uplink data needs to be subjected to congestion control. An access process; the congestion control information is the congestion control probability factor, and the corresponding congestion control is a probability of controlling the user equipment to perform congestion control, and the user equipment is transmitting uplink data according to the congestion control probability factor. If the congestion control is required, the random access procedure for transmitting the uplink data in the inactive state is stopped; the congestion control information is the congestion control duration, and the corresponding congestion control is to control the user equipment to stop for the non-authentication. The duration of the random access procedure in which the active state sends uplink data.

In the above solution, the congestion control probability factor has a value range of (a, b), and the user equipment randomly selects a random number c between a and b when performing congestion control check, and the random number is c is compared with the congestion control factor, and it is determined whether congestion control is performed according to the comparison result, wherein a, b, and c are arbitrary real numbers.

In the foregoing solution, the sending, by the random access signaling, the congestion control information to the user equipment, by using the random access signaling, to specify all user equipments in an inactive state or in an inactive state. The user equipment sends the congestion control information.

In the above solution, the sending, by using the random access signaling, the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state, including: in a time window of a random access response The message 2 MSG2 is sent once or repeatedly, or the message 2MSG2 is scheduled to be sent once in each available downlink radio subframe within the time window of the random access response.

In the above solution, the sending, by using the random access signaling, the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state, including: in the random access signaling Message 2: The media access layer sub-header MAC subheader of the MSG2 carries the congestion control information, and sends the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state; and/or The random access response message of the random access signaling message 2MSG2 carries the congestion control information, and sends the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state.

In the foregoing solution, the specified user equipment is determined by a preset preamble sequence identifier or a preset spreading code in the random access signaling.

In the above solution, the sending, by using the random access signaling, the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state, including: using the preamble sequence to identify a corresponding wireless RN (Radio Network Tempory Identity) or RNTI scrambled physical downlink control channel (PDCCH, Downlink Control Information) scheduling MSG 2 The MSG 2 includes a response message for one preamble sequence or a spreading code; or the MSG 2 is scheduled using a common RNTI scrambled PDCCH DCI, the MSG 2 containing response messages for multiple preamble sequences or spreading codes, Each of the response messages is identified by a corresponding preamble sequence or a spreading code.

In the foregoing solution, if the number of times of the contention failure of the random access procedure initiated by the user equipment exceeds the threshold of the preset number of times, the random access procedure for sending the uplink data in the inactive state is stopped.

In the foregoing solution, the preamble sequence used in the random access signaling is from a preamble resource pool dedicated to the inactive state, or a preamble resource pool common to the active state and the inactive state.

On the other hand, the embodiment of the present invention further provides an uplink data sending method, including: receiving, by using a random access signaling or a system message, congestion control information sent by a base station; and performing congestion control on uplink data transmission according to the congestion control information.

In the foregoing solution, the performing congestion control on the uplink data transmission according to the congestion control information includes: determining, according to the congestion control indication parameter, whether congestion data needs to be sent for uplink data; and stopping congestion for controlling congestion control a random access procedure for transmitting uplink data in an inactive state; and/or randomly selecting a random number c between a and b, and comparing the random number c with the congestion control factor, and determining whether to perform congestion according to the comparison result Control, wherein the congestion control probability factor has a value range of (a, b), a, b, and c are any real numbers; and/or suspends the congestion control duration and continues to initiate uplink data for inactive transmission. Random access process.

On the other hand, the embodiment of the present invention further provides an uplink data sending apparatus, including: a sending unit, configured to send congestion control information to an inactive user equipment by using random access signaling or a system message, where the congestion control information is used. The user equipment is instructed to perform congestion control when transmitting uplink data; and the access unit is configured to perform random access on the user equipment according to the congestion control result of the user equipment.

In the above solution, the sending unit includes a first sending module, configured to send the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state by using the random access signaling.

In the above solution, the first sending module is further configured to: send the message 2 MSG2 once or repeatedly in the time window of the random access response, or each time in the time window of the random access response. The message 2 MSG2 can be sent once in the downlink radio subframe.

In the above solution, the first sending module is further configured to: carry the congestion control information in the media access layer sub-header MAC subheader of the message 2 MSG2 of the random access signaling, and move to the inactive state. All the user equipments or the specified user equipments in the inactive state send the congestion control information; and/or carry the congestion control information in the random access response message of the message 2 MSG2 of the random access signaling, All user equipments in an inactive state or designated user equipments in an inactive state send the congestion control information.

In the foregoing solution, the first sending module is further configured to: schedule, by using the preamble sequence, a corresponding RNTI or an RNTI scrambled PDCCH DCI corresponding to the spreading code, the MSG 2, where the MSG 2 includes a preamble a sequence or a spreading code response message; or scheduling a MSG 2 using a common RNTI scrambled PDCCH DCI, the MSG 2 containing response messages for a plurality of preamble sequences or spreading codes, each of the response messages corresponding The preamble sequence or the spreading code identifier.

In the above solution, the access unit is further configured to stop initiating the random connection of sending the uplink data in the inactive state if the number of times of the contention failure of the random access procedure initiated by the user equipment exceeds a preset number of times. Into the process.

In another aspect, the present invention further provides an uplink data sending apparatus, including: a receiving unit configured to receive congestion control information sent by a base station by using random access signaling or a system message; and a control unit configured to be configured according to the congestion control information Congestion control for uplink data transmission.

In the above solution, the control unit is further configured to: determine, according to the congestion control indication parameter, whether to send uplink data, whether congestion control is required; and if congestion control is required, stop random use for sending uplink data in an inactive state. An access procedure; and/or randomly selecting a random number c between a and b, and comparing the random number c with the congestion control factor, and determining whether to perform congestion control according to a comparison result, wherein the congestion control The probability factor ranges from (a, b), a, b, and c are any real numbers; and/or the pause of the congestion control duration continues to initiate a random access procedure for transmitting the uplink data in an inactive state.

In another aspect, an embodiment of the present invention further provides a base station, including a processor for performing data processing, a memory configured as data storage, and a data transceiver configured to transmit and/or receive data, wherein the memory is configured to be stored. An instruction for implementing an uplink data transmission method for an inactive user device, the processor being configured to execute the memory stored instruction, and when the processor executes the memory stored instruction, the performing step comprises: passing The random access signaling or the system message sends the congestion control information to the inactive user equipment, where the congestion control information is used to indicate that the user equipment performs congestion control when transmitting the uplink data; and according to the congestion control result of the user equipment, The user equipment performs random access.

In the above solution, the congestion control information is the congestion control indication parameter, and the corresponding congestion control is to indicate that the user equipment stops the random data for transmitting the uplink data when the uplink data needs to be subjected to congestion control. An access process; the congestion control information is the congestion control probability factor, and the corresponding congestion control is a probability of controlling the user equipment to perform congestion control, and the user equipment is transmitting uplink data according to the congestion control probability factor. If the congestion control is required, the random access procedure for sending the uplink data in the inactive state is stopped; the congestion control information is the duration of the congestion control, and the corresponding congestion control is to control the user equipment to stop for the non-live The duration of the random access process that dynamically sends upstream data.

In the above solution, the sending, by using the random access signaling, the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state, including: in the random access signaling The media access layer sub-header media access control (MAC) of the MSG2 carries the congestion control information, and sends the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state. Congestion control information; and/or carrying the congestion control information in the random access response message of message 2 MSG2 of the random access signaling, to all user equipments in an inactive state or in an inactive state The user equipment sends the congestion control information.

In another aspect, an embodiment of the present invention further provides a user equipment, including a processor for performing data processing, a memory configured as data storage, and a data transceiver configured for data transmission and/or reception, where the memory is configured to be implemented by using a memory. An instruction for an uplink data transmission method of an inactive user equipment, the processor being configured to execute the memory stored instruction, and when the processor executes the memory stored instruction, performing the step of: performing random The access signaling or system message receives congestion control information sent by the base station; and performs congestion control on the uplink data transmission according to the congestion control information.

The embodiment of the present invention further provides a storage medium, where the storage medium includes a stored program, where the program runs to execute the uplink data sending method.

The uplink data sending method, the device, the base station, the user equipment, and the storage medium provided by the embodiment of the present invention can send the congestion control information to the inactive user equipment by using the random access signaling or the system message, and instruct the user equipment to send the uplink. The data is subjected to congestion control, and then the user equipment is randomly accessed according to the congestion control result of the user equipment. In this way, when the network is congested, the inactive UE can be controlled to perform corresponding control on the sending behavior of the uplink data, thereby avoiding congestion and effectively improving the transmission efficiency.

DRAWINGS

FIG. 1 is a flowchart of an uplink data sending method according to an embodiment of the present invention;

2 is another flowchart of an uplink data sending method according to an embodiment of the present invention;

3 is a signaling exchange diagram in an uplink data sending method according to an embodiment of the present invention;

4 is another signaling exchange diagram in an uplink data sending method according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an uplink data sending apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an uplink data sending apparatus according to an embodiment of the present invention.

detailed description

The embodiments of the present invention are further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in FIG. 1 , an embodiment of the present invention provides an uplink data sending method, which is based on a base station, and includes:

S11, sending, by using a random access signaling or a system message, congestion control information to the inactive user equipment, where the congestion control information is used to indicate that the user equipment performs congestion control when sending uplink data.

S12: Perform random access on the user equipment according to the congestion control result of the user equipment.

The uplink data sending method provided by the embodiment of the present invention can send the congestion control information to the inactive user equipment by using the random access signaling or the system message, and instruct the user equipment to perform congestion control when transmitting the uplink data, and then according to the The congestion control result of the user equipment performs random access to the user equipment. In this way, when the network is congested, the inactive UE can be controlled to perform corresponding control on the sending behavior of the uplink data, thereby avoiding congestion and effectively improving the transmission efficiency.

In an embodiment, the congestion control information in step S11 may include one or more of a congestion control indication parameter, a congestion control probability factor, and a congestion control duration.

In an embodiment, the congestion control information is a congestion control indication parameter, and the corresponding congestion control is to indicate that the user equipment stops the random access for sending the uplink data in the inactive state when the uplink data needs to be used for congestion control. In an embodiment, when the congestion control indication parameter is in the first state, the user equipment may be instructed to perform congestion control when transmitting the uplink data, and when the congestion control indication parameter is in the second state, the user equipment may be instructed to send the uplink. Congestion control is not performed when data is available.

In another embodiment of the present invention, the congestion control information is a congestion control probability factor, and the corresponding congestion control is a probability of controlling the user equipment to perform congestion control. The user equipment stops the random access procedure for transmitting the uplink data in an inactive state according to the congestion control probability factor; for example, in an embodiment of the present invention, in a case where congestion control is required to transmit uplink data; The value of the congestion control probability factor is (a, b), and the user equipment may randomly select a random number c between a and b when performing the congestion control check, and the random number c is The congestion control factors are compared, and whether congestion control is performed is determined according to the comparison result, wherein a, b, and c are arbitrary real numbers. In an embodiment, how to determine whether to perform congestion control according to a comparison result between the random number c and the congestion control factor may be set according to requirements, and may be configured to perform congestion control when the random number c is greater than the congestion control factor, or The congestion control is performed in a case where the random number c is smaller than the congestion control factor, and the congestion control may be performed according to a certain probability, which is not limited in the embodiment of the present invention. For example, in one embodiment of the present invention, the congestion control probability factor is 40, and the user equipment randomly selects a random number c from 1 to 100 natural numbers each time, and if c is greater than 40, performs congestion control if c is less than or equal to 40. Then, congestion control is not performed, and the probability of performing congestion control is 60%.

In another embodiment of the present invention, the congestion control information is a congestion control duration, and the corresponding congestion control is a duration for controlling the user equipment to stop the random access procedure for transmitting the uplink data in an inactive state. That is, when the congestion control information includes the congestion control duration, the UE starts to receive the congestion control information, and continues the congestion control time length without using the inactive state to send the uplink data, that is, the duration of the congestion control duration is not A random access channel (RACH, Random Access Channel) process for transmitting data in an inactive state is initiated.

It should be noted that, in the foregoing process of performing congestion control, although the UE temporarily cannot receive the RACH procedure for transmitting data in an inactive state, it does not affect the process of initiating the RRC connection recovery or the RRC connection establishment process, that is, the UE can still initiate the RRC. Connection recovery or RRC connection establishment process.

In step S11, in the case that the congestion control information is sent to the user equipment by using the random access signaling, in an embodiment, all users in an inactive state may be sent through random access signaling. The device or the specified user equipment in an inactive state sends the congestion control information.

In an embodiment, the manner in which the congestion control information is carried and sent may be various. The embodiment of the present invention does not limit this. For example, in an embodiment of the present invention, the congestion control information may be carried in the MAC subheader of the random access signaling MSG2, and the congestion may be sent to all user equipments in an inactive state or a specified user equipment in an inactive state. Control information.

When the congestion control information is sent to the specified user equipment, the different user equipments have different preamble identifiers or different spreading codes, and the designated user equipment may be identified by a preset preamble sequence in the random access signaling or The preset spreading code determines that only the user equipment corresponding to the preamble sequence identifier or the spreading code performs corresponding congestion control.

In an embodiment, when the congestion control information is sent to all the user equipments, the corresponding preamble identifier or the spreading code may not be configured, or the preamble sequence identifier or the spreading code common to all user equipments may be configured, and all the The UEs with congestion control information can perform corresponding congestion control accordingly. For example, in a MAC subheader for a random access response, the parameter T may be configured as a backoff or other value of a non-random access preamble ID for indicating congestion to all inactive user equipments. Control control indicator.

In an embodiment, in addition to carrying the congestion control information in the MAC subheader of the random access signaling MSG2, the congestion control information may be carried in the random access response message of the MSG2 to all in the inactive state. The user equipment or the specified user equipment in an inactive state transmits the congestion control information.

In a MAC subheader for a random access response, one bit indicates that there is one medium access layer random access response message MAC RAR, and indicates congestion control information, such as congestion control indication, congestion, in the MAC RAR. Control factor and/or congestion control duration, etc.

In an embodiment, the sending, by using the random access signaling, the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state may include:

Using the preamble sequence to identify the corresponding RNTI or the RNTI scrambled PDCCH DCI corresponding to the spreading code to schedule the MSG 2, where the MSG 2 includes a response message for one preamble sequence or a spreading code;

Or, the MSG 2 is scheduled by using a common RNTI scrambled PDCCH DCI, where the MSG 2 includes response messages for multiple preamble sequences or spreading codes, and each of the response messages is identified by a corresponding preamble sequence or a spreading code. .

In an embodiment, in the process of transmitting the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state by using the random access signaling, the random access response may be The message 2 MSG2 may be sent once in the time window or may be sent multiple times in the time window of the random access response.

In an embodiment, the preamble sequence used in the random access signaling may be from a preamble resource pool dedicated to the inactive state, or may be a preamble resource pool common to the active state and the inactive state.

In order to prevent the inactive user equipment from reducing the communication efficiency due to frequent failures in the random process of initiating the inactive transmission of the uplink data, in an embodiment, the number of times the contention failure of the random access procedure initiated by the user equipment fails If the preset number of times threshold is exceeded, the random access procedure for initiating the sending of the uplink data in the inactive state may be stopped. In particular, when the network sends an uplink data to an inactive state and an independent resource pool is configured, and the resource pool is congested, the network can control the behavior of the UE transmitting the uplink data in an inactive state through the message 2 or the system message. . For example, after the contention failure fails, the inactive state may not be used to send the uplink data, but the RRC connection establishment is initiated by using the resources in different random access resource pools, or the RRC recovery process is performed to enter the RRC connected state to continue to send. Upstream data.

When the congestion control information is sent to the inactive user equipment by using the cell system message, one or more of the congestion control indication parameter, the congestion control probability factor, and the congestion control duration may be carried in the system message.

In an embodiment, the number of transmissions may be indicated by a system message indication, a protocol agreement, or in the congestion control information. Before the UE initiates the RACH to send the uplink data in an inactive state, the UE may read the system message to obtain the congestion control information described above.

Correspondingly, as shown in FIG. 2, an embodiment of the present invention further provides an uplink data sending method, based on a user equipment, including:

S21. Receive congestion control information sent by the base station by using random access signaling or a system message.

S22. Perform congestion control on uplink data transmission according to the congestion control information.

The method for transmitting uplink data provided by the embodiment of the present invention can receive congestion control information sent by a base station by using random access signaling or a system message, and perform congestion control on uplink data transmission according to the congestion control information. In this way, when the network is congested, the inactive UE can perform corresponding control on the sending behavior of the uplink data, thereby avoiding congestion and effectively improving the transmission efficiency.

In an embodiment, the congestion control information includes one or more of a congestion control indication parameter, a congestion control probability factor, and a congestion control duration.

In an embodiment, the performing congestion control on the uplink data transmission according to the congestion control information may include:

Determining, according to the congestion control indication parameter, whether congestion control is required to send uplink data;

In the case that congestion control is required, the random access procedure for transmitting the uplink data in an inactive state is stopped;

and / or,

Randomly selecting a random number c between a and b, and comparing the random number c with the congestion control factor, and determining whether to perform congestion control according to the comparison result, wherein the congestion control probability factor has a value range of (a, b), a, b, c are any real numbers;

and / or,

After suspending the congestion control duration, the random access procedure for transmitting the uplink data in the inactive state is continued.

The uplink data sending method provided by the embodiment of the present invention is described in detail below.

Example 1

As shown in FIG. 3, in a technique in which an inactive state UE transmits uplink data based on a 4-step RACH procedure, an access network configures a part of a random access channel resource for an inactive state UE to transmit uplink data. A portion of the preamble code of the physical random access channel is configured as a preamable code for transmitting an uplink data transmission, referred to herein as a preamble set S2, which will be used for the UE to initiate an RRC connection setup procedure or initiate an RRC resume procedure from the active state. The premable used by other RACH procedures such as the RRC connected state is called a premable set S1. The access network indicates configuration information of the preamble set S1 and the set S2 through a system message.

It should be noted that, in the actual configuration, the premable set S1 and the set S2 may respectively include multiple premable groups, that is, the premable set S1 and the set S2 mentioned herein may be based on the grant size of the message 3 and the path loss of the UE. Or the wireless signal quality is divided into groups. For example, the preamble set S1 of the present invention may include two premable groups called group A and group B.

When the inactive state UE initiates the inactive state to send the uplink data, the premble P1 is selected from the premable set S2 for transmitting the uplink data in the inactive state, and the premable P1 is sent in the physical random access channel (PRACH). In the step of RACH, the premable is called message 1 (message 1).

After detecting the premable P1, the access network element sends message 2 in the RAR response window. The MAC PDU of Message 2 includes one or more MAC subheaders for random access response, and zero and multiple random access response messages (MAC RAR).

In an embodiment, each MAC subheader for a random access response contains a combination of E/R/BI/RAPID information, where:

E: The Extension Bit is used to indicate whether there is more E/T/RAPID combination information in the MAC header.

T: Name information, used to indicate whether the MAC subsubheader contains a backoff indicator or a Random access ID (RAPID).

BI: The backoff indication is a Backoff Indicator, which is used to indicate the range of the backoff time of the UE when a contention resolution failure occurs.

RAPID: This information is used to identify the premable code for random access.

In an embodiment, indicating congestion control information in message 2 includes one or more of the following:

Congestion control indicator: indicates whether the UE receiving the indication performs congestion control.

Congestion control factor: A probability used to indicate the UE to perform congestion control. In an embodiment, the probability factor is a value, and the value ranges from (a, b), when the UE performs a congestion control check, randomly selects a random number c between a and b, and The congestion control factor is compared, and if the random number c is greater than or less than the probability factor, the UE performs the congestion control.

Congestion control time length: The length of time used to indicate the UE's congestion control.

In an embodiment, the congestion control information is indicated in message 2 in one of the following ways:

Indicated in the public part of message 2;

At this time, part or all of the congestion control information is indicated in one MAC RAR in message 2, and is applicable to all UEs that receive the congestion control information.

In an embodiment, it is a MAC subheader for a random access response, and its value T indicates other values of backoff or non-preamble ID, and the congestion control indication is indicated in the MAC subheader for the random access response. (congestion control indicator).

In one embodiment, it is in a MAC subheader for a random access response, and its value T is indicated as a backoff or other value of a non-Premable ID, and a bit is also used in the MAC subheader to indicate the presence of a MAC RAR. The congestion control information is indicated in the MAC RAR, including a congestion control indicator, and a congestion control factor.

Indicated in the MAC RAR of a preamble in message 2;

At this time, part or all of the congestion control information is included in the MAC RAR for one preamble in message 2. The congestion control information is applied to the UE using the preamble in message 1.

The partial or all indication of the congestion control information in the message 2 refers to one or a combination of one of the congestion control indication information, the congestion control probability factor information, and the congestion control time length information in the message 2.

The UE that needs to perform congestion control may perform corresponding congestion control processing according to the received congestion control information, and mainly includes the following:

If the congestion control information only includes the congestion control probability factor, and the UE needs to perform congestion control according to the requirement of the probability factor, the UE stops the current RACH process. In an embodiment, an RRC connection recovery procedure or an RRC connection setup procedure is initiated thereafter to transmit uplink data.

If the congestion control information includes only the congestion control indication, and the value of the congestion control indication is set to require congestion control, the UE stops the current RACH procedure. In an embodiment, an RRC connection recovery procedure or an RRC connection setup procedure is initiated thereafter to transmit uplink data.

If the congestion control information includes only the congestion control time length information, the UE starts to receive the congestion control information, and does not use the inactive state to send the uplink data, that is, does not initiate the data transmission for the non-active state. RACH process. However, in an embodiment, the UE may initiate an RRC Connection Recovery or RRC Connection Setup procedure.

If the congestion control information includes only the congestion control indication and the congestion control time length information, and the value of the congestion control indication is set to require congestion control, the UE stops the current RACH process, and continues the congestion control time length without using the inactive state. Uplink data, that is, does not initiate a RACH procedure for transmitting data in an active state. In an embodiment, the UE may initiate an RRC connection recovery or RRC connection setup procedure.

If the congestion control information includes only the congestion control indication and the congestion control probability factor, and the value of the congestion control indication is set to require congestion control, and the UE needs to perform congestion control according to the congestion control price probability factor, the UE stops the current RACH process. . In an embodiment, an RRC connection recovery procedure or an RRC connection setup procedure is initiated thereafter to transmit uplink data.

If the congestion control information includes only the congestion control probability control factor and the congestion control time length information, and the UE needs to perform congestion control according to the congestion control probability factor, the UE starts from receiving the congestion control information, and does not continue the congestion control time length. The uplink data is sent using an inactive state, that is, the RACH procedure for transmitting data in an active state is not initiated. However, in an embodiment, the UE may initiate an RRC Connection Recovery or RRC Connection Setup procedure.

If the congestion control information includes a congestion control indication, a congestion control probability factor, and a congestion control time length, and the value of the congestion control indication is set to require congestion control, and the UE needs congestion control according to the congestion control probability factor, the congestion control is received from the receiver. The information starts, and the time of the continuous congestion control time length does not use the inactive state to transmit the uplink data, that is, does not initiate the RACH procedure for transmitting the data in the active state. However, in an embodiment, the UE may initiate an RRC Connection Recovery or RRC Connection Setup procedure.

If the congestion control information does not include the congestion control length information, but the UE needs to perform congestion control according to the congestion control indication and/or the congestion control probability factor, the UE stops the current RACH process, and after the time indicated by the backoff is rolled back, the UE may continue. Initiate a RACH procedure for transmitting data in an inactive state.

In an embodiment, the UE does not continue to send uplink data in an inactive state after the number of failures of initiating the RACH procedure reaches a predetermined number of times. The predetermined number of times is indicated by a system message indication, a protocol agreement, or in the congestion control information. In practical applications, the following situations can be included:

If the congestion control information only includes the congestion control probability factor, and the UE needs to perform congestion control according to the requirement of the probability factor, the UE stops initiating the RACH process for sending the data in the active state after the number of RACH contention resolution failures reaches a predetermined number of times. . And in an embodiment, an RRC connection recovery procedure or an RRC connection setup procedure is initiated later to transmit uplink data.

If the congestion control information includes only the congestion control indication, and the value of the congestion control indication is set to require congestion control, the UE stops initiating the RACH procedure for the active state transmission data after the number of RACH contention resolution failures reaches a predetermined number of times. And in an embodiment, an RRC connection recovery procedure or an RRC connection setup procedure is initiated later to transmit uplink data.

If the congestion control information includes only the congestion control time length information, the UE does not initiate the RACH procedure for transmitting data in the inactive state within the duration of the congestion control time after the number of failures of the RACH competition resolution reaches a predetermined number of times. In an embodiment, the UE may initiate an RRC connection recovery or RRC connection setup procedure.

If the congestion control information includes only the congestion control indication and the congestion control time length information, and the value of the congestion control indication is set to require congestion control, the UE does not continue the congestion control time length after the RACH contention resolution failure times reaches a predetermined number of times. Initiate a RACH procedure for transmitting data in an inactive state. In an embodiment, the UE may initiate an RRC connection recovery or RRC connection setup procedure.

If the congestion control information includes only the congestion control indication and the congestion control probability factor, and the value of the congestion control indication is set to require congestion control, and the UE needs to perform congestion control according to the congestion control price probability factor, the UE fails to resolve in the RACH competition. After the number of times reaches the predetermined number of times, the RACH process for transmitting data for the inactive state is stopped. And in an embodiment, an RRC connection recovery procedure or an RRC connection setup procedure is initiated later to transmit uplink data.

If the congestion control information includes only the congestion control probability control factor and the congestion control time length information, and the UE needs to perform congestion control according to the congestion control probability factor, the UE continues the congestion control time length after the RACH contention resolution failure times reaches a predetermined number of times. The time does not initiate a RACH procedure for transmitting data in an inactive state. In an embodiment, the UE may initiate an RRC connection recovery or RRC connection setup procedure.

If the congestion control information includes a congestion control indication, a congestion control probability factor, and a congestion control time length, and the value of the congestion control indication is set to require congestion control, and the UE needs to perform congestion control according to the congestion control probability factor, the UE resolves in the RACH competition. After the number of failures reaches a predetermined number of times, the duration of the duration of the congestion control time does not initiate a RACH procedure for transmitting data in an inactive state. In an embodiment, the UE may initiate an RRC connection recovery or RRC connection setup procedure.

If the UE initiates an RRC connection setup or an RRC connection recovery procedure, the UE selects the premable in the premable set S1 and carries the RRC connection setup request or the RRC connection resume request in the message 3. Request) message.

Example 2

The difference between the embodiment and the embodiment 1 is that the access network does not allocate a dedicated premable set S2 for the RACH process that sends the uplink data in an inactive state, that is, when the UE initiates the RACH that sends the uplink data in an inactive state, the use and other The RACH process is the same as the random access resource.

In this case, the UE initiates a RACH procedure for transmitting uplink data in an inactive state, and a RACH procedure in which the UE initiates an RRC connection setup or RRC recovery procedure, using the same random access resource configuration.

Example 3

The difference between the method of this embodiment and the method provided by Embodiment 1 of the present invention is:

In the 2-step RACH procedure as shown in FIG. 4, the access network is configured for contention based UL resources.

When the UE initiates the RACH, the UE selects the contention-based uplink resource and sends the message 1, including but not limited to one of the following:

1. Send a preambel code and send the upstream message 1 in the corresponding resource.

2. Use a spreading code to spread the message to message1 and send it.

The way the access network sends message 2 includes:

1. Send message 2 in a specific response window, and schedule message 2 with the PDCCH DCI scrambled by the RNTI corresponding to the preamble code or the spreading code, and message 2 contains a response message for a premable code or a spreading code. .

2. Send message 2 in a specific response window, and use a common RNTI scrambled PDCCH DCI to schedule message2. At this time, the content of message 2 contains response messages for multiple preamble codes or spreading codes, and the response message at this time The response message is identified by the identifier of the preamble code or the spreading code.

In the foregoing response message for a specific preamble or a spreading code, a UE contention resolution identity is carried. When the UE receives the response message corresponding to the premable or spreading code used by the UE, it compares whether the UE contention resolution identification information is its own contention resolution identifier. If so, the competition for the RACH process is resolved successfully. Otherwise, the competition resolution of the RACH process failed.

In the above process, if the message 2 is scheduled by a common RNTI scrambled PDCCH DCI, the message 2 contains a response message for multiple premable or spreading codes, in the message 2, or in scheduling the message Part or all of the following information is indicated in the PDCCH DCI of 2:

1. Backoff information, used to indicate the backoff time information of the UE when the contention failure fails.

2. The congestion control information defined in Embodiment 1 of the present invention is used to control congestion control in which the UE transmits uplink data in an inactive state.

If the message 2 is scheduled by the PDCCH DCI scrambled for a specific preamble or spreading code, the message 2 contains a response message for a premable or spreading code. Then choose one of the following methods:

1. In each of the transmitted message 2 or PDCCH DCIs scheduling each message 2, indicating Backoff information, and/or one or more combinations of congestion control information defined in Embodiment 1 of the present invention.

2. Define a common RNTI that the RNTI scrambled PDCCH DCI needs to be received by the UE receiving the message 2 in the response window. In the public RNTI scrambled DCI, or the public message 2 sent in the downlink resource indicated by the RNTI scrambled DCI, indicating Backoff information, and/or one of the congestion control information defined in Embodiment 1 of the present invention One or more combinations.

In an embodiment, the common RNTI scrambled PDCCH DCI, or the common message 2 sent in the downlink resource indicated by the common RNTI scrambled DCI, is repeatedly sent multiple times in the response window, or The transmission is scheduled to be sent once in each available downlink radio subframe in the response window.

Example 4

This embodiment is different from Embodiment 1 in that congestion control information for transmitting uplink data is indicated by an inactive state in a system message of a cell.

The congestion control information includes:

1. A congestion control indicator for transmitting uplink data in an inactive state: for indicating whether to allow the UE to transmit uplink data in an inactive state.

The predetermined number of times that the initiating state is allowed to be transmitted is indicated by a system message indication, a protocol agreement, or in the congestion control information.

In an embodiment, congestion control information used by different QoS or service types may also be indicated in the system message. The UE determines whether to perform congestion control according to the QoS and service type of the transmitted uplink data and the corresponding congestion control information.

Before the UE initiates the RACH to send the uplink data in an inactive state, the UE reads the system message to obtain the congestion control information described above.

If the congestion control indication is defined as not allowing initiation of a RACH procedure for transmitting uplink data in an inactive state, the UE enters a connected state to initiate uplink data by initiating an RRC connection setup or an RRC connection recovery procedure.

The uplink data sending method provided by the embodiment of the present invention provides a network for the network by indicating the inactive state congestion control information in the random access response message (message 2 in the 4-step RACH and the message 2 in the 2-step RACH). When the network is congested, the mechanism for the UE to send uplink data through the inactive state can be controlled in time. In particular, when the network is configured to send uplink data to an inactive state, an independent resource pool is configured. When the resource pool is congested, the network can control the behavior of the UE transmitting the uplink data through the inactive state through the message 2 or the system message. For example, after the contention failure fails, the inactive state is no longer used to send the uplink data, but the RRC connection establishment is initiated by using different random access resources, or the RRC recovery process is performed to enter the RRC connected state to continue to send the uplink data.

Correspondingly, as shown in FIG. 5, an embodiment of the present invention further provides an uplink data sending apparatus 5, based on a base station, including:

The sending unit 51 is configured to send, by using a random access signaling or a system message, congestion control information to the inactive user equipment, where the congestion control information is used to indicate that the user equipment performs congestion control when transmitting uplink data.

The access unit 52 is configured to perform random access on the user equipment according to the congestion control result of the user equipment.

The uplink data sending apparatus 5 of the embodiment of the present invention can send congestion control information to an inactive user equipment by using random access signaling or a system message, and instruct the user equipment to perform congestion control when transmitting uplink data, and then according to the The congestion control result of the user equipment performs random access to the user equipment. In this way, when the network is congested, the inactive UE can be controlled to perform corresponding control on the sending behavior of the uplink data, thereby avoiding congestion and effectively improving the transmission efficiency.

In an embodiment, the congestion control information includes at least one of a congestion control indication parameter, a congestion control probability factor, and a congestion control duration.

In an embodiment, the congestion control information is the congestion control indication parameter, and the corresponding congestion control is to indicate that the user equipment stops using the inactive state to send uplink data if the uplink data needs to be used for congestion control. Random access procedure;

The congestion control information is the congestion control probability factor, and the corresponding congestion control is a probability of controlling the user equipment to perform congestion control. According to the congestion control probability factor, the user equipment needs to perform congestion control when transmitting uplink data. In the case of stopping the random access procedure for transmitting the uplink data in an inactive state;

The congestion control information is the duration of the congestion control, and the corresponding congestion control is a duration for controlling the user equipment to stop the random access procedure for sending uplink data in an inactive state.

In an embodiment, the congestion control probability factor has a value range of (a, b), and the user equipment randomly selects a random number c between a and b when performing a congestion control check, and The random number c is compared with the congestion control factor, and it is determined whether congestion control is performed according to the comparison result, wherein a, b, and c are arbitrary real numbers.

In an embodiment, the sending unit 51 includes a first sending module, configured to send, by using the random access signaling, the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state. .

In an embodiment, the first sending module is further configured to:

The message 2 MSG2 is sent once or repeatedly in the time window of the random access response, or the message 2 MSG2 is scheduled to be sent once in each available downlink radio subframe within the time window of the random access response.

In an embodiment, the first sending module is further configured to:

Transmitting the congestion control information in the media access layer sub-header MAC subheader of the message 2 MSG2 of the random access signaling, and transmitting the information to all user equipments in an inactive state or a specified user equipment in an inactive state. Congestion control information; and/or

Transmitting the congestion control information in the random access response message of the message 2 MSG2 of the random access signaling, and sending the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state. .

In an embodiment, the designated user equipment is determined by a preset preamble sequence identifier or a preset spreading code in the random access signaling.

In an embodiment, the first sending module is further configured to:

or,

The MSG 2 is scheduled using a common RNTI scrambled PDCCH DCI, the MSG 2 containing response messages for a plurality of preamble sequences or spreading codes, each of the response messages being identified by a corresponding preamble sequence or spreading code.

In an embodiment, the access unit 52 is further configured to stop, when the number of times of contention failure of the random access procedure initiated by the user equipment exceeds a preset number of thresholds, stop sending the inactive state to send uplink data. Access process.

Correspondingly, as shown in FIG. 6, the embodiment of the present invention further provides an uplink data sending apparatus 6, which is based on user equipment, and includes:

The receiving unit 61 is configured to receive, by using a random access signaling or a system message, congestion control information sent by the base station;

The control unit 62 is configured to perform congestion control on the uplink data transmission according to the congestion control information.

The uplink data transmitting apparatus 6 provided by the embodiment of the present invention can receive the congestion control information sent by the base station by using random access signaling or the system message, and perform congestion control on the uplink data transmission according to the congestion control information. In this way, when the network is congested, the inactive UE can perform corresponding control on the sending behavior of the uplink data, thereby avoiding congestion and effectively improving the transmission efficiency.

In an embodiment, the control unit 62 is further configured to:

and / or,

Correspondingly, embodiments of the present invention also provide a base station, including a processor for performing data processing, a memory configured as data storage, and a data transceiver configured for data transmission and/or reception, the memory being configured for storage implementation. And an instruction of the uplink data sending method of the inactive user equipment, the processor is configured to execute the memory stored instruction, and when the processor executes the memory stored instruction, the performing step comprises:

Sending congestion control information to the inactive user equipment by using the random access signaling or the system message, where the congestion control information is used to indicate that the user equipment performs congestion control when transmitting uplink data;

And randomly performing access to the user equipment according to a congestion control result of the user equipment.

In an embodiment, the congestion control information is the congestion control indication parameter, and the corresponding congestion control is to indicate that the user equipment stops using the inactive state to send uplink data if the uplink data needs to be used for congestion control. a random access procedure; the congestion control information is the congestion control probability factor, and the corresponding congestion control is a probability of controlling the user equipment to perform congestion control, where the user equipment is transmitting according to the congestion control probability factor When the uplink data needs to be subjected to congestion control, the random access procedure for transmitting the uplink data in the inactive state is stopped; the congestion control information is the congestion control duration, and the corresponding congestion control is used to stop the user equipment from being stopped. The duration of the random access procedure for transmitting uplink data in an inactive state.

In an embodiment, the sending, by the random access signaling, the congestion control information to the user equipment, by using the random access signaling, to all user equipments in an inactive state or in an inactive state The designated user equipment sends the congestion control information.

In an embodiment, the sending, by using the random access signaling, the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state, including: at a time of random access response The message 2 MSG2 is sent once or repeatedly in the window, or the message 2 MSG2 is scheduled to be sent once in each available downlink radio subframe in the time window of the random access response.

In an embodiment, the sending, by using the random access signaling, the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state, including: in the random access signal Message 2: The media access layer sub-header MAC subheader of the MSG2 carries the congestion control information, and sends the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state; and/ Or carrying the congestion control information in the random access response message of the message 2 MSG2 of the random access signaling, and sending the congestion control to all user equipments in an inactive state or a specified user equipment in an inactive state. information.

Correspondingly, embodiments of the present invention also provide a user equipment, including a processor for performing data processing, a memory configured as data storage, and a data transceiver configured for data transmission and/or reception, the memory being configured as a storage implementation. An instruction for an uplink data transmission method of an inactive user equipment, the processor being configured to execute the memory stored instruction, and when the processor executes the memory stored instruction, the performing step comprises:

Receiving congestion control information sent by the base station by using random access signaling or system message;

Congestion control is performed on the uplink data transmission according to the congestion control information.

In an embodiment, the performing congestion control on the uplink data transmission according to the congestion control information includes: determining, according to the congestion control indication parameter, whether to send uplink data, whether congestion control is required; if congestion control is required, stopping a random access procedure for transmitting uplink data in an inactive state; and/or randomly selecting a random number c between a and b, and comparing the random number c with the congestion control factor, and determining whether the comparison result is based on the comparison result Performing congestion control, wherein the congestion control probability factor has a value range of (a, b), a, b, and c are arbitrary real numbers; and/or suspending the congestion control duration and continuing to initiate transmission for inactive state Random access procedure for uplink data.

Correspondingly, an embodiment of the present invention further provides a storage medium, where the storage medium includes a stored program, where the program is executed when executed:

An embodiment of the present invention further provides a storage medium, where the storage medium includes a stored program, where the program is executed when executed:

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element defined by the phrase "comprising a ..." does not exclude the presence of additional elements in the process, method, article, or device that comprises the element.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, can be embodied in the form of a software product stored in a storage medium (such as a read only memory (ROM, Read). -Only Memory)/Random Access Memory (RAM), including several instructions to make a terminal device (can be a mobile phone, computer, server, air conditioner, or network device, etc.) The method described in various embodiments of the present invention is performed.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Industrial applicability

In the embodiment of the present invention, the congestion control information is sent to the inactive user equipment by using the random access signaling or the system message, where the congestion control information is used to indicate that the user equipment performs congestion control when sending uplink data; The congestion control result of the device randomly accesses the user equipment. In this manner, the congestion control information can be sent to the inactive user equipment by means of the random access signaling or the system message, and the user equipment is instructed to perform congestion control when transmitting the uplink data, and then according to the congestion control result of the user equipment. The user equipment performs random access. In this way, when the network is congested, the inactive UE can be controlled to perform corresponding control on the sending behavior of the uplink data, thereby avoiding congestion and effectively improving the transmission efficiency.

Claims

An uplink data sending method includes:

Sending congestion control information to the inactive user equipment by using the random access signaling or the system message, where the congestion control information is used to indicate that the user equipment performs congestion control when transmitting uplink data;

And randomly performing access to the user equipment according to a congestion control result of the user equipment.
The method of claim 1, wherein the congestion control information comprises at least one of a congestion control indication parameter, a congestion control probability factor, and a congestion control duration.
The method according to claim 2, wherein the congestion control information is the congestion control indication parameter, and the corresponding congestion control is to indicate that the user equipment stops using for non-transmission if the uplink data needs to be subjected to congestion control. a random access procedure in which an active state transmits uplink data;

The congestion control information is the congestion control probability factor, and the corresponding congestion control is a probability of controlling the user equipment to perform congestion control. According to the congestion control probability factor, the user equipment needs to perform congestion control when transmitting uplink data. In the case of stopping the random access procedure for transmitting the uplink data in an inactive state;

The congestion control information is the duration of the congestion control, and the corresponding congestion control is a duration for controlling the user equipment to stop the random access procedure for sending uplink data in an inactive state.
The method according to claim 3, wherein the congestion control probability factor has a value range of (a, b), and the user equipment randomly selects a random number c between a and b when performing a congestion control check. And comparing the random number c with the congestion control factor, and determining whether to perform congestion control according to the comparison result, wherein a, b, and c are arbitrary real numbers.
The method according to any one of claims 1 to 4, wherein the transmitting the congestion control information to the user equipment by using the random access signaling comprises:

The congestion control information is sent to all user equipments in an inactive state or a specified user equipment in an inactive state by using the random access signaling.
The method of claim 5, wherein the sending, by the random access signaling, the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state comprises:

The message 2 MSG2 is sent once or repeatedly in the time window of the random access response, or the message 2 MSG2 is scheduled to be sent once in each available downlink radio subframe within the time window of the random access response.
The method of claim 5, wherein the sending, by the random access signaling, the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state comprises:

Transmitting the congestion control information in the media access layer sub-header MAC subheader of the message 2 MSG2 of the random access signaling, and transmitting the information to all user equipments in an inactive state or a specified user equipment in an inactive state. Congestion control information; and/or

Transmitting the congestion control information in the random access response message of the message 2 MSG2 of the random access signaling, and sending the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state. .
The method according to claim 7, wherein the designated user equipment is determined by a preset preamble sequence identifier or a preset spreading code in the random access signaling.
The method according to claim 8, wherein the sending, by the random access signaling, the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state comprises:

Using the preamble sequence to identify a corresponding radio network temporary identifier RNTI or an RNTI scrambled physical downlink control channel downlink control information PDCCH DCI corresponding to the spreading code to schedule MSG 2, the MSG 2 includes a preamble sequence or a spread spectrum Code response message;

or,

The MSG 2 is scheduled using a common RNTI scrambled PDCCH DCI, the MSG 2 containing response messages for a plurality of preamble sequences or spreading codes, each of the response messages being identified by a corresponding preamble sequence or spreading code.
The method according to any one of claims 1 to 4, wherein, in the case that the number of times of contention failure of the random access procedure initiated by the user equipment exceeds a preset number of times threshold, the initiating inactive transmission is stopped. The random access process of data.
The method according to any one of claims 1 to 4, wherein the preamble sequence used in the random access signaling is from a pool of preamble resources dedicated to inactivity, or a preamble common to active and inactive states. Resource pool.
An uplink data sending method includes:

Receiving congestion control information sent by the base station by using random access signaling or system message;

Congestion control is performed on the uplink data transmission according to the congestion control information.
The method of claim 12, wherein the congestion control information comprises at least one of a congestion control indication parameter, a congestion control probability factor, and a congestion control duration.
The method according to claim 13, wherein said performing congestion control on uplink data transmission according to said congestion control information comprises:

Determining, according to the congestion control indication parameter, whether congestion control is required to send uplink data;

In the case that congestion control is required, the random access procedure for transmitting the uplink data in an inactive state is stopped;

and / or,

Randomly selecting a random number c between a and b, and comparing the random number c with the congestion control factor, and determining whether to perform congestion control according to the comparison result, wherein the congestion control probability factor has a value range of (a, b), a, b, c are any real numbers;

and / or,

After suspending the congestion control duration, the random access procedure for transmitting the uplink data in the inactive state is continued.
An uplink data sending device includes:

a sending unit, configured to send, by using a random access signaling or a system message, congestion control information to the inactive user equipment, where the congestion control information is used to indicate that the user equipment performs congestion control when sending uplink data;

The access unit is configured to perform random access on the user equipment according to the congestion control result of the user equipment.
The apparatus of claim 15, wherein the congestion control information comprises at least one of a congestion control indication parameter, a congestion control probability factor, and a congestion control duration.
The device according to claim 16, wherein the congestion control information is the congestion control indication parameter, and the corresponding congestion control is to indicate that the user equipment stops using for non-transmission if congestion control is required to send uplink data. a random access procedure in which an active state transmits uplink data;

The congestion control information is the congestion control probability factor, and the corresponding congestion control is a probability of controlling the user equipment to perform congestion control. According to the congestion control probability factor, the user equipment needs to perform congestion control when transmitting uplink data. In the case of stopping the random access procedure for transmitting the uplink data in an inactive state;

The congestion control information is the duration of the congestion control, and the corresponding congestion control is a duration for controlling the user equipment to stop the random access procedure for sending uplink data in an inactive state.
The apparatus according to claim 17, wherein the congestion control probability factor has a value range of (a, b), and the user equipment randomly selects a random number c between a and b when performing a congestion control check. And comparing the random number c with the congestion control factor, and determining whether to perform congestion control according to the comparison result, wherein a, b, and c are arbitrary real numbers.
The apparatus according to any one of claims 15 to 18, wherein the transmitting unit comprises a first transmitting module configured to pass all random access signaling to all user equipments in an inactive state or in a non-active state The specified user equipment in the active state sends the congestion control information.
The device according to claim 19, wherein the first sending module is further configured to:

The message 2 MSG2 is sent once or repeatedly in the time window of the random access response, or the message 2 MSG2 is scheduled to be sent once in each available downlink radio subframe within the time window of the random access response.
The device according to claim 19, wherein the first sending module is further configured to:

Transmitting the congestion control information in the media access layer sub-header MAC subheader of the message 2 MSG2 of the random access signaling, and transmitting the information to all user equipments in an inactive state or a specified user equipment in an inactive state. Congestion control information; and/or

Transmitting the congestion control information in the random access response message of the message 2 MSG2 of the random access signaling, and sending the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state. .
The apparatus according to claim 21, wherein the designated user equipment is determined by a preset preamble sequence identifier or a preset spreading code in the random access signaling.
The device according to claim 22, wherein the first sending module is further configured to:

Using the preamble sequence to identify the corresponding RNTI or the RNTI scrambled PDCCH DCI corresponding to the spreading code to schedule the MSG 2, where the MSG 2 includes a response message for one preamble sequence or a spreading code;

or,

The MSG 2 is scheduled using a common RNTI scrambled PDCCH DCI, the MSG 2 containing response messages for a plurality of preamble sequences or spreading codes, each of the response messages being identified by a corresponding preamble sequence or spreading code.
The device according to any one of claims 15 to 18, wherein the access unit is further configured to: if the number of times of contention failure of the random access procedure initiated by the user equipment exceeds a preset number of thresholds Stop the random access process of initiating the sending of uplink data in an inactive state.
An uplink data sending device includes:

a receiving unit, configured to receive, by using a random access signaling or a system message, congestion control information sent by the base station;

The control unit is configured to perform congestion control on the uplink data transmission according to the congestion control information.
The apparatus of claim 25, wherein the congestion control information comprises at least one of a congestion control indication parameter, a congestion control probability factor, and a congestion control duration.
The device according to claim 26, wherein the control unit is further configured to:

Determining, according to the congestion control indication parameter, whether congestion control is required to send uplink data;

In the case that congestion control is required, the random access procedure for transmitting the uplink data in an inactive state is stopped;

and / or,

Randomly selecting a random number c between a and b, and comparing the random number c with the congestion control factor, and determining whether to perform congestion control according to the comparison result, wherein the congestion control probability factor has a value range of (a, b), a, b, c are any real numbers;

and / or,

After suspending the congestion control duration, the random access procedure for transmitting the uplink data in the inactive state is continued.
A base station includes a processor for performing data processing, a memory configured for data storage, and a data transceiver configured for data transmission and/or reception, wherein the memory is configured to store an uplink implemented for an inactive user equipment An instruction of a data transmission method, the processor being configured to execute the memory stored instruction, and when the processor executes the memory stored instruction, the performing step comprises:

Sending congestion control information to the inactive user equipment by using the random access signaling or the system message, where the congestion control information is used to indicate that the user equipment performs congestion control when transmitting uplink data;

And randomly performing access to the user equipment according to a congestion control result of the user equipment.
The base station according to claim 28, wherein the congestion control information includes at least one of a congestion control indication parameter, a congestion control probability factor, and a congestion control duration.
The base station according to claim 29, wherein the congestion control information is the congestion control indication parameter, and the corresponding congestion control is to indicate that the user equipment stops using for non-transmission if congestion control is required to send uplink data. a random access procedure in which an active state transmits uplink data;

The congestion control information is the congestion control probability factor, and the corresponding congestion control is a probability of controlling the user equipment to perform congestion control. According to the congestion control probability factor, the user equipment needs to perform congestion control when transmitting uplink data. In the case of stopping the random access procedure for transmitting the uplink data in an inactive state;

The congestion control information is the duration of the congestion control, and the corresponding congestion control is a duration for controlling the user equipment to stop the random access procedure for sending uplink data in an inactive state.
The base station according to any one of claims 28 to 30, wherein when the processor transmits the congestion control information to the user equipment by using the random access signaling, the steps implemented include:

The congestion control information is sent to all user equipments in an inactive state or a specified user equipment in an inactive state by using the random access signaling.
The base station according to claim 31, wherein the processor is configured to send, by using the random access signaling, the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state. The steps to achieve include:

The message 2 MSG2 is sent once or repeatedly in the time window of the random access response, or the message 2 MSG2 is scheduled to be sent once in each available downlink radio subframe within the time window of the random access response.
The base station according to claim 31, wherein said processor transmits said congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state by said random access signaling The steps to achieve include:

Transmitting the congestion control information in the media access layer sub-header MAC subheader of the message 2 MSG2 of the random access signaling, and transmitting the information to all user equipments in an inactive state or a specified user equipment in an inactive state. Congestion control information; and/or,

Transmitting the congestion control information in the random access response message of the message 2 MSG2 of the random access signaling, and sending the congestion control information to all user equipments in an inactive state or a specified user equipment in an inactive state. .
A user equipment comprising a processor for performing data processing, a memory configured for data storage, and a data transceiver configured for data transmission and/or reception, wherein the memory is configured to be stored for implementation by an inactive user equipment An instruction of an uplink data transmission method, the processor being configured to execute an instruction stored by the memory, and when the processor executes the instruction stored by the memory, the performing step comprises:

Receiving congestion control information sent by the base station by using random access signaling or system message;

Congestion control is performed on the uplink data transmission according to the congestion control information.
The user equipment according to claim 34, wherein the congestion control information comprises at least one of a congestion control indication parameter, a congestion control probability factor, and a congestion control duration.
The user equipment according to claim 35, wherein when the processor implements congestion control for uplink data transmission according to the congestion control information, the implemented steps include:

Determining, according to the congestion control indication parameter, whether uplink control is required to perform congestion control;

In the case that congestion control is required, the random access procedure for transmitting the uplink data in an inactive state is stopped;

and / or,

Randomly selecting a random number c between a and b, and comparing the random number c with the congestion control factor, and determining whether to perform congestion control according to the comparison result, wherein the congestion control probability factor has a value range of (a, b), a, b, c are any real numbers;

and / or,

After suspending the congestion control duration, the random access procedure for transmitting the uplink data in the inactive state is continued.
A storage medium, the storage medium comprising a stored program, wherein the program is executed to execute the uplink data transmission method according to any one of claims 1 to 11.
A storage medium, the storage medium comprising a stored program, wherein the program is executed to perform the uplink data transmission method according to any one of claims 12 to 14.