CN114697979A

CN114697979A - Data processing method and equipment thereof

Info

Publication number: CN114697979A
Application number: CN202011598613.1A
Authority: CN
Inventors: 曾礼君; 邓爱林; 洪劲松
Original assignee: Shanghai Huawei Technologies Co Ltd
Current assignee: Shanghai Huawei Technologies Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-07-01
Also published as: WO2022143319A1

Abstract

The embodiment of the application discloses a data processing method which is used for a digital indoor system. The method of the embodiment of the application comprises the following steps: the method comprises the steps that first network equipment receives a first message sent by a base station, the first message carries a first Timing Advance (TA) value, the first TA value is smaller than or equal to a first time delay, the first time delay is a difference value between the time when the base station sends the first message and the time when a terminal receives the first message, the first network equipment sends the first message to the terminal, the first network equipment receives a second message sent by the terminal, the second message is a message sent by the terminal according to the first TA value, and the first network equipment sends the second message to the base station. In the embodiment of the application, the base station can receive uplink information sent by the terminal later by sending the first TA value to the terminal, so that the remote distance of the digital indoor system is increased, and the networking flexibility is improved.

Description

Data processing method and equipment thereof

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a data processing method and equipment.

Background

The digitalized indoor distributed system can convert radio frequency analog signals of the cell base station system into digital signals, the digital signals are transmitted indoors through optical fibers or network cables and the like, and finally the digital signals are restored to radio frequency analog signals on the radio frequency unit to support indoor coverage.

Each processing and conversion node in the indoor digital distributed system, optical fiber remote and the like introduce extra time delay. The part of the delay is equivalent to air interface propagation delay for the information source base station, and the maximum air interface propagation delay supported by the information source base station is determined by the cell coverage radius supported by the protocol, so that the maximum air interface propagation delay is fixed under the condition that the cell coverage radius supported by the protocol is fixed. When the base station receives the uplink information sent by the terminal, a receiving window is provided, the longest time corresponding to the receiving window is the maximum air interface propagation delay, the base station can receive the uplink information sent by the terminal in the time corresponding to the receiving window, and if the time for the uplink information to reach the base station exceeds the longest time corresponding to the receiving window, the base station cannot receive the uplink information sent by the terminal.

In the indoor digital distributed system, when the terminal sends uplink information to the information source base station, the uplink information is transmitted to the information source base station through the digital indoor distributed system, and the additional time delay brought by the digital indoor distributed system may cause the time of the uplink information sent by the information source base station to reach the base station by the terminal to exceed the time corresponding to the receiving window of the base station, so that the base station cannot receive the uplink information sent by the terminal, and the communication efficiency between the information source base station and the terminal is influenced.

Disclosure of Invention

The embodiment of the application provides a data processing method, so that a base station can receive uplink information sent by a terminal according to a first TA value, the remote distance of a digital indoor system is increased, and the networking flexibility is improved.

The first aspect of the embodiments of the present application provides a data processing method.

The method comprises the steps that first network equipment receives a first message sent by a base station, the first message carries a first Timing Advance (TA) value, the first TA value is smaller than or equal to a first time delay, the first time delay is a difference value between the time when the base station sends the first message and the time when a terminal receives the first message, the first network equipment sends the first message to the terminal, the first network equipment receives a second message sent by the terminal, the second message is a message sent by the terminal according to the first TA value, and the first network equipment sends the second message to the base station.

In the embodiment of the application, the first TA value is sent to the terminal, so that the terminal can send the message to the information source base station through the first TA value, the information source base station can receive the message sent by the terminal in a short time delay, the remote distance of the digital indoor system can be increased, and the networking flexibility is improved.

In a possible implementation manner, based on the data processing method of the first aspect, before the first network device receives the first message sent by the base station, the method further includes: and the first network equipment receives a third message sent by the terminal, wherein the third message is sent by the terminal according to the initial TA value, the initial TA value is set by the base station, and the first network equipment sends the third message to the base station.

In the embodiment of the application, the third message sent by the terminal is received, so that the realizability of the scheme is improved.

In a possible implementation manner of the data processing method based on the first aspect, after the first network device sends the third message to the base station, the method further includes: the first network equipment receives a fourth message sent by the terminal, wherein the fourth message is sent by the terminal according to a target TA value, the target TA value is obtained by the terminal according to a first step length and an initial TA value, and the first step length is set by the base station.

In the embodiment of the application, the fourth message sent by the terminal is received, so that the realizability of the scheme is improved.

In a possible implementation manner, based on the data processing method of the first aspect, after the first network device sends the third message to the base station, the method further includes: the first network equipment receives a fifth message sent by the base station, the fifth message represents that the base station receives a third message or a fourth message sent by the terminal, the first network equipment sends the fifth message to the terminal, the first network equipment receives a sixth message sent by the terminal, the sixth message carries a target TA value or an initial TA value, and the first network equipment sends the sixth message to the base station.

In the embodiment of the application, the fifth message is sent to the terminal, the sixth message carrying the target TA value or the initial TA value is received, and the sixth message is sent to the base station, so that the realizability of the scheme is improved.

In a possible implementation manner, based on the data processing method of the first aspect, the first TA value is obtained by the base station according to the target TA value and the measured TA value, or the first TA value is obtained by the base station according to the initial TA value and the measured TA value, and the measured TA value is a TA value determined when the base station receives the third message or the fourth message.

In the embodiment of the application, the first TA value is obtained according to the measured TA value, so that the accuracy of the first TA value is improved.

A second aspect of the present application provides a data processing method.

The base station sends a first message to the first network equipment, wherein the first message carries a first Timing Advance (TA) value, the first TA value is smaller than or equal to a first time delay, the first time delay is a difference value between the time when the base station sends the first message and the time when the terminal receives the first message, the base station receives a second message sent by the first network equipment, and the second message is a message sent by the terminal to the first network equipment according to the first TA value.

In the embodiment of the application, the base station sends the first TA value to the first network device, so that the terminal can send a message to the first network device according to the first TA value, and further, the terminal can receive the message sent according to the first TA value, and the efficiency of data transmission is improved.

In a possible implementation manner, based on the data processing method of the second aspect, before the base station sends the first message to the first network device, the method further includes: the base station receives a third message sent by the first network equipment, the third message is sent by the terminal according to an initial TA value, the initial TA value is sent to the terminal by the base station, the base station determines a measurement TA value, the measurement TA value is the TA value determined when the base station receives the third message, and the base station sends a fifth message to the first network equipment.

In the embodiment of the application, the first TA value is sent to the terminal, so that the terminal can send a message to the information source base station through the first TA value, the information source base station can receive the message sent by the terminal in a short time delay, the remote distance of the digital indoor system can be increased, and the networking flexibility is improved.

In a possible implementation manner, based on the data processing method of the second aspect, before the base station sends the first message to the first network device, the method further includes: the base station receives a fourth message sent by the first network equipment, the fourth message is sent by the terminal according to a target TA value, the target TA value is obtained by the terminal according to the first step length and the initial TA value, the first step length and the initial TA value are sent to the terminal by the base station, the base station determines a measurement TA value, the measurement TA value is determined when the base station receives the fourth message, and the base station sends a fifth message to the first network equipment.

In the embodiment of the application, the base station determines the measurement TA value and sends the measurement TA value to the first network device, so that the first network device sends the measurement TA value to the terminal, and the efficiency of sending the message by the terminal can be improved.

In a possible implementation manner, based on the data processing method of the second aspect, after the base station sends the fifth message to the first network device, the method further includes: the base station receives a sixth message sent by the first network device, where the sixth message carries a target TA value or an initial TA value, and the base station obtains the first TA value according to the target TA value and the measurement TA value, or the base station obtains the first TA value according to the initial TA value and the measurement TA value.

In the embodiment of the application, the base station obtains the first TA value according to the measured TA value, so that the accuracy of the first TA value is improved.

In a possible implementation manner, based on the data processing method of the second aspect, after the base station sends the first message to the first network device, the method further includes: and the base station updates the initial TA value according to the first TA value.

In the embodiment of the application, the base station updates the initial TA value according to the first TA value, so that when the initial TA value is sent to other terminals next time, the time delay of sending messages by other terminals can be shortened, and the efficiency of data transmission is further improved.

A third aspect of the present application provides a network device.

A network device, comprising:

a receiving unit, configured to receive a first message sent by a base station, where the first message carries a first Timing Advance (TA) value, the first TA value is less than or equal to a first time delay, and the first time delay is a difference between a time when the base station sends the first message and a time when a terminal receives the first message;

a sending unit, configured to send a first message to a terminal;

the receiving unit is further configured to receive a second message sent by the terminal, where the second message is a message sent by the terminal according to the first TA value;

the transmitting unit is further configured to transmit a second message to the base station.

Based on the network device of the third aspect, in a possible implementation manner, the receiving unit is further configured to receive a third message sent by the terminal, where the third message is sent by the terminal according to the initial TA value, and the initial TA value is set by the base station;

the transmitting unit is further configured to transmit a third message to the base station.

Based on the network device of the third aspect, in a possible implementation manner, the receiving unit is further configured to receive a fourth message sent by the terminal, where the fourth message is sent by the terminal according to a target TA value, the target TA value is obtained by the terminal according to the first step size and the initial TA value, and the first step size is set by the base station.

Based on the network device in the third aspect, in a possible implementation manner, the receiving unit is further configured to receive a fifth message sent by the base station, where the fifth message indicates that the base station receives a third message or a fourth message sent by the terminal;

the sending unit is further used for sending a fifth message to the terminal;

the receiving unit is further configured to receive a sixth message sent by the terminal, where the sixth message carries the target TA value or the initial TA value;

the transmitting unit is further configured to transmit a sixth message to the base station.

Based on the network device of the third aspect, in a possible implementation manner, the first TA value is obtained by the base station according to the target TA value and the measured TA value, or the first TA value is obtained by the base station according to the initial TA value and the measured TA value, and the measured TA value is a TA value determined when the base station receives the third message or the fourth message.

The method executed by each unit of the network device in the third aspect of the present application is similar to the method executed by the network device in the first aspect or the second aspect, and details are not repeated here.

A fourth aspect of the present application provides a base station.

A base station, comprising:

a sending unit, configured to send a first message to a first network device, where the first message carries a first timing advance TA value, the first TA value is less than or equal to a first time delay, and the first time delay is a difference between a time when a base station sends the first message and a time when a terminal receives the first message;

and the receiving unit is used for receiving a second message sent by the first network equipment, wherein the second message is a message sent by the terminal to the first network equipment according to the first TA value.

Based on the base station of the third aspect of the present application, in a possible implementation manner, the receiving unit is further configured to receive a third message sent by the first network device, where the third message is sent by the terminal according to an initial TA value, and the initial TA value is sent to the terminal by the base station;

the base station further comprises:

a determining unit, configured to determine a measurement TA value, where the measurement TA value is a TA value determined when the base station receives the third message;

the sending unit is further configured to send a fifth message to the first network device.

Based on the base station of the third aspect of the present application, in a possible implementation manner, the receiving unit is further configured to receive a fourth message sent by the first network device, where the fourth message is sent by the terminal according to a target TA value, the target TA value is obtained by the terminal according to the first step size and the initial TA value, and the first step size and the initial TA value are sent to the terminal by the base station;

the base station further comprises:

a determining unit, configured to determine a measurement TA value, where the measurement TA value is a TA value determined when the base station receives the fourth message;

Based on the base station of the third aspect of the present application, in a possible implementation manner, the receiving unit is further configured to receive a sixth message sent by the first network device, where the sixth message carries the target TA value or the initial TA value;

the determining unit is further configured to obtain a first TA value according to the target TA value and the measured TA value, or the base station obtains the first TA value according to the initial TA value and the measured TA value.

In a possible implementation manner, based on the base station of the third aspect of the present application, the base station further includes:

and the updating unit is used for updating the initial TA value according to the first TA value.

The method performed by each unit of the base station in the fourth aspect of the present application is similar to the method performed by the base station in the first aspect or the second aspect of the present application, and details are not repeated here.

A fifth aspect of the present application provides a computer storage medium having stored thereon instructions that, when executed on a computer, cause the computer to perform a method as embodied in the first or second aspect of the present application.

A sixth aspect of the present application provides a computer program product which, when executed on a computer, causes the computer to perform a method as embodied in the first or second aspect of the present application.

In a seventh aspect of the present application, there is provided a network device, including a processor, coupled to a memory, where at least one program instruction or code is stored, and the at least one program instruction or code is loaded and executed by the processor, so as to enable the network device to implement the data processing method of the first aspect.

In an eighth aspect of the present application, there is provided a base station, including a processor, coupled to a memory, where at least one program instruction or code is stored, and the at least one program instruction or code is loaded and executed by the processor, so as to enable a network device to implement the data processing method of the second aspect.

According to the technical scheme, the embodiment of the application has the following advantages:

in the embodiment of the application, the first TA value is sent to the terminal, so that the terminal can send the message to the base station through the first TA value, the base station can receive the message sent by the terminal in a short time delay, the remote distance of the digital indoor system can be increased, and the networking flexibility is improved.

Drawings

Fig. 1 is a system architecture diagram of a data transmission system according to an embodiment of the present application;

fig. 2 is a schematic flow chart of a data processing method according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a base station according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present application;

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

fig. 7 is a schematic structural diagram of a base station according to an embodiment of the present application.

Detailed Description

The embodiment of the application provides a data processing method,

the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Please refer to fig. 1, which is a system architecture diagram of a data transmission system according to an embodiment of the present application.

As shown in fig. 1, the data transmission system comprises two parts, one is a digital indoor distribution system and the other is a source base station system. The digital indoor distributed system includes a radio remote unit 101, a Data Concentrator Unit (DCU) 102, and a data concentrator unit 103. The radio remote unit 101 may further include a micro remote radio unit (pRRU), a multi-mode radio remote unit (mru), and other radio remote units, and specifically, in an actual application process, may further include other types of radio remote units, which is not limited herein.

In the digital indoor distributed system, the remote radio unit 101 is connected to the data concentration unit 102 or the data concentration unit 103 through an optical fiber connection line, or the remote radio unit 101 may also be connected to the data concentration unit 102 or the data concentration unit 103 through a cat6a network line, which is not limited herein.

The source base station system includes a Remote RF Unit (RRU) 104 and a Base Band Unit (BBU) 105. The remote rf unit 104 is connected to the baseband processing unit 105 through an optical fiber connection line, or the remote rf unit 104 is connected to the baseband processing unit 105 through a cat6a network line, and the specific connection mode is not limited herein.

The digitalized indoor distributed system can convert radio frequency analog signals of the information source base station system into digital signals, the digital signals are transmitted indoors through optical fiber connecting lines or network cables and the like, and finally the digital signals are restored to radio frequency analog signals on the radio frequency remote unit 101 and transmitted to the terminal to support indoor coverage. Compared with a traditional passive DAS (data acquisition System), the digital indoor distributed system adopts full digital signal transmission, avoids RF (radio frequency) cable loss, can support farther zooming and obtains higher signal-to-noise ratio. Thereby being superior to the traditional passive DAS in networking flexibility, networking cost and performance.

Each processing and switching node inside the indoor digital distributed system, such as a node like the radio remote unit 101 or the data centralizing unit 102, and a fiber or network cable remote, introduces additional time delay. The part of the time delay is equivalent to the air interface propagation time delay for the source base station, and the maximum air interface propagation time delay supported by the source base station is determined by the cell coverage radius supported by the protocol. From the perspective of flexibility and processing capability requirements of the entire data transmission system, the larger this maximum air interface propagation delay is, the better, so that longer pull-out distances and cheaper processing hardware can be supported.

For example, in the current protocol, the maximum supportable cell radius of formats Format0 and Format3 of a Physical Random Access Channel (PRACH) is 14.5km, and the length of a PRACH symbol in the two formats is 0.8 msec. However, under the low-frequency common 4:1 subframe ratio and the subcarrier interval of 30kHZ, the uplink time slot is only 0.5ms, and cannot support the PRACH Format of Format0 or Format3, and the cell radius that other formats can support is only 9.9km at most, after the time delay introduced by the intermediate processing and forwarding interface of the indoor digital distributed system is deducted, the optical fiber remote distance is finally short, and the transmission distance of data is affected.

Based on the above problems of the data transmission system and the prior art, how to solve the problems will be specifically described in the embodiments of the present application.

Please refer to fig. 2, which is a flowchart illustrating a data processing method according to an embodiment of the present disclosure.

In step 201, the source base station transmits a system message to the remote radio unit.

And the source base station sends a system message to the remote radio unit, wherein the system message comprises the initial TA value.

Specifically, in order to avoid transmission delay caused by an indoor digital distributed system, the source base station may send an initial TA value to the terminal before the terminal starts to intervene in the source base station, so that the terminal may delay sending a message according to the TA value, and thus the base station may receive the message sent by the terminal in a receiving window. For example, because the MSG1 message sent on the PRACH is the first message initiated by the terminal, the source base station has no way to notify the UE of adjusting the TA through user-level signaling, so all terminals covered by the source base station may be notified in a system message broadcast manner to send the MSG1 in advance by a fixed time, for example, the MSG1 is implemented through an SIB1 message, and specifically, the SIB1 message may carry an initial TA value set by the source base station. The following code shows an example of carrying the initial TA value in the SIB1 message.

Wherein initialCommonTa represents the initial TA value. The initial TA value may be set manually empirically. For example, if the data transmission delay of the indoor digital distributed system is known, the initial TA value may be directly set as the data transmission delay of the indoor digital distributed system, so that the terminal may directly send a message according to the initial TA value, and since the initial TA value is the data transmission delay of the indoor digital distributed system, the source base station may receive the message in the reception window, and the remote distance of the indoor digital distributed system may be increased based on the maximum delay of the protocol.

Under the condition that an indoor digital distributed system is unknown, if the set initial TA value is too small, the information source base station cannot normally demodulate the information sent by the terminal after the terminal advances the initial TA value, and therefore, a target TA value can be determined by gradually increasing the TA value, and the information source base station can receive the information sent by the terminal in a receiving window. Specifically, the step size of increasing the TA value each time may be carried in the system message. The following code shows an example of carrying the initial TA value and step size in the SIB1 message.

Where initialCommonTa represents the initial TA value and commontaadjust step represents the TA value for each increment. That is, the terminal sends the message through the initial TA value, if the terminal does not receive the response message of the source base station within a certain time, the terminal increases the TA value corresponding to the step length once on the basis of the initial TA value, and sends the message again until the source base station sends the response message.

In the practical application process, the terminal may not receive the response message of the source base station all the time due to other reasons, and then a maximum number of attempts is set, which is beneficial to stopping the attempts after a certain number of attempts and finding out the reason that the source base station cannot receive the message sent by the terminal from other aspects. As shown in the following code, is an example of carrying the initial TA value, the step size and the maximum number of attempts in the SIB1 message.

Wherein initialCommonTa represents an initial TA value, commontaadjust step represents a TA value that is incremented each time, and maxCommonTaAdjustTimes represents a maximum number of attempts.

In step 202, the remote radio unit sends a system message to the terminal.

After receiving the system message sent by the source base station, the remote radio unit sends the system message to the terminal.

It should be noted that, in this embodiment of the application, the remote radio unit receives the message sent by the source base station, that is, the message is received by a previous-hop node of the terminal, that is, the remote radio unit, after the message is relayed by the indoor digital distributed system. The remote radio unit sends a message to the information source base station, which means that the message sent by the remote radio unit is transferred by an indoor digital distributed system and then sent to the information source base station by a previous hop node of the information source base station, namely a data centralized unit.

In step 203, the terminal acquires an initial TA value according to the system message.

After receiving the system message, the terminal parses the system message and obtains an initial TA value therefrom.

Specifically, in a possible implementation manner, when the system message further includes a step length, the terminal may also obtain information of the step length. In a possible implementation manner, when the system message further includes a step size and a maximum number of attempts, the terminal may acquire information of the step size and information of the maximum number of attempts.

In step 204, the terminal sends a third message to the remote radio unit.

After the terminal acquires the initial TA value, the terminal sends a third message to the remote radio unit according to the initial TA value.

Specifically, after acquiring the initial TA value, the terminal sends the third message in advance of the time corresponding to the initial TA value on the basis of the time scheduled by the base station.

In step 205, the remote radio unit transmits a third message to the source base station.

After receiving the third message, the remote radio unit sends the third message to the source base station.

In step 206, the terminal sends a fourth message to the remote radio unit.

After the terminal sends the third message to the remote radio unit, if the terminal does not receive the response message sent by the source base station within a certain time, the terminal sends a fourth message to the remote radio unit, wherein the fourth message is sent by the terminal according to a target TA value, and the target TA value is obtained by the terminal according to the step length and the initial TA value.

Specifically, after the terminal sends the third message to the remote radio unit, the terminal may start a timer, and if the response message of the source base station sent by the remote radio unit is not received before the timer expires, it may be because the message sent by the terminal does not fall within the receiving window of the source base station, so that the terminal increases the TA value corresponding to the step length once on the basis of the initial TA value to obtain the target TA value. After obtaining the target TA value again, the terminal continues to send a fourth message to the remote radio unit according to the target TA value, where the data content of the fourth message may be the same as or different from that of the third message, and is not limited herein.

It should be noted that, after the terminal sends the fourth message to the remote radio unit, the terminal may further continue to start a timer, and if the response message of the source base station sent by the remote radio unit is not received before the timer expires, the terminal continues to increase the TA value corresponding to the step length for one time on the target TA value, and sends the next message according to the TA value. It can be understood that, before the maximum number of attempts is reached, the terminal may increment the TA value corresponding to the step length by one time based on the last TA value, and continue to transmit the message to the remote radio unit until receiving the response message of the source base station sent by the remote radio unit or reaching the maximum number of attempts.

In step 207, the remote radio unit transmits a fourth message to the source base station.

The radio remote unit only receives the fourth message sent by the terminal, and the radio remote unit sends the fourth message to the information source base station.

In step 208, the source base station determines a measurement TA value.

When the information source base station receives the message sent by the terminal, the information source base station determines a measurement TA value according to the time when the message is received, and the measurement TA value indicates that the information source base station measures and records the delay of the message when receiving the message, namely the measurement TA value.

Because the initial TA value or the target TA value is only used to ensure that the message sent by the terminal can be received within the receiving window of the source base station when the terminal sends the message according to the initial TA value or the target TA value, even if the source base station receives the message sent by the terminal, there may be a delay condition, and therefore, the source base station may also measure and record a measured TA value, which is an initial TA value or a deviation value between the target TA value and the actual delay.

For example, when the message received by the source base station is a third message sent by the terminal according to the initial TA value, the measured TA value is an offset value between the initial TA value and the actual delay. And if the message received by the source base station is a fourth message sent by the terminal according to the target TA value, the measured TA value is a deviation value between the target TA value and the actual time delay.

In step 209, the source base station transmits a fifth message to the remote radio unit.

After obtaining the measured TA value, the information source base station sends a fifth message to the remote radio unit, where the fifth message indicates that the information source base station receives a third message or a fourth message sent by the terminal, that is, the fifth message is a message responded by the information source base station after receiving the message sent by the terminal. For example, when the third message or the fourth message is an MSG1 message, the fifth message may be an MSG2 message. It is to be understood that, when the third message or the fourth message is another message, the fifth message may also be another response message, such as an ACK message, which is not limited herein.

In step 210, the remote radio unit sends a fifth message to the terminal.

After receiving the fifth message, the remote radio unit sends the fifth message to the terminal.

In step 211, the terminal sends a sixth message to the remote radio unit.

After receiving the fifth message, the terminal sends a sixth message to the remote radio unit, where the sixth message carries the target TA value or the initial TA value.

Specifically, after receiving the fifth message, the terminal indicates that the advance amount of the terminal when sending the message to the remote radio unit last time can enable the information source base station to receive the message, so that the terminal reports the TA value corresponding to the advance amount to the information source base station. After the terminal sends the third message by using the initial TA value, the terminal receives a fifth message sent by the remote radio unit, and then the terminal sends a sixth message to the remote radio unit, where the sixth message carries the initial TA value. And if the terminal receives a fifth message sent by the radio remote unit after the terminal sends the third message by using the target TA value, the terminal sends a sixth message to the radio remote unit, and the sixth message carries the target TA value.

For example, if the fifth message is the MSG2 message, the sixth message may be the MSG3 message, and reports the initial TA value or the target TA value to the base station in the ueActualTa field in the RRCSetupRequestz carried in the MSG3 message. It is to be understood that, if the fifth message is the MSG2 message, the sixth message may also be any message sent to the source base station after the MSG2 message, which is not limited herein.

In step 212, the remote radio unit transmits a sixth message to the source base station.

After receiving the sixth message, the remote radio unit sends the sixth message to the source base station.

In step 213, the source base station obtains the first TA value according to the sixth message.

After the source base station receives the sixth message, the source base station obtains an initial TA value or a target TA value from the sixth message, and obtains a first TA value according to the initial TA value or the target TA value, where the first TA value is less than or equal to a first delay, and the first delay is a difference between a time when the base station sends the first message to the terminal and a time when the terminal receives the first message.

Specifically, in a possible implementation manner, if the sixth message carries an initial TA value, the source base station adds the initial TA value to a measured TA value measured and recorded by a previous source base station to obtain a first TA value, where the first TA value is a time delay between the terminal sending the message and the source base station receiving the message. After obtaining the first TA value, the source base station may update the initial TA value to the first TA value, so that the terminal may successfully send a message to the source base station within a shorter number of attempts when sending the initial TA value to the terminal at the same location next time.

In a possible implementation manner, the first TA value is an initial TA value, that is, a message sent by the terminal according to the initial TA value, and the source base station can just receive the message at a scheduled time, that is, when 0 delay is indicated, the first TA value is the initial TA value at this time.

In a possible implementation manner, after the source base station acquires the first TA values of the multiple terminals, a minimum value of the multiple first TA values may be used as a cell-level initial TA value of a cell corresponding to the source base station, and the cell-level initial TA value is sent to all terminals corresponding to the cell, so that time for which all terminals in the cell attempt to access may be shortened.

In this embodiment, step 206 and step 207 are optional steps, and when the terminal can receive the message sent according to the initial TA value by the source base station, the terminal does not need to continue to increase the TA value according to the step size to send the message.

The data processing method in the embodiment of the present application is described above, and the network device and the base station in the embodiment of the present application are described in detail below.

Please refer to fig. 3, which is a schematic structural diagram of a network device according to an embodiment of the present disclosure.

A network device, comprising:

a receiving unit 301, configured to receive a first message sent by a base station, where the first message carries a first timing advance TA value, the first TA value is less than or equal to a first time delay, and the first time delay is a difference between a time when the base station sends the first message and a time when a terminal receives the first message;

a sending unit 302, configured to send a first message to a terminal;

the receiving unit 301 is further configured to receive a second message sent by the terminal, where the second message is a message sent by the terminal according to the first TA value;

the sending unit 302 is further configured to send a second message to the base station.

The method executed by each unit of the network device in the embodiment of the present application is similar to the method executed by the network device in the embodiment shown in fig. 2, and details thereof are not repeated here.

A network device, comprising:

a sending unit 302, configured to send a first message to a terminal;

Optionally, the receiving unit 301 is further configured to receive a third message sent by the terminal, where the third message is sent by the terminal according to the initial TA value, and the initial TA value is set by the base station;

the sending unit 302 is further configured to send a third message to the base station.

Optionally, the receiving unit 301 is further configured to receive a fourth message sent by the terminal, where the fourth message is sent by the terminal according to a target TA value, the target TA value is obtained by the terminal according to the first step size and the initial TA value, and the first step size is set by the base station.

Optionally, the receiving unit 301 is further configured to receive a fifth message sent by the base station, where the fifth message indicates that the base station receives a third message or a fourth message sent by the terminal;

the sending unit 302 is further configured to send a fifth message to the terminal;

the receiving unit 301 is further configured to receive a sixth message sent by the terminal, where the sixth message carries the target TA value or the initial TA value;

the sending unit 302 is further configured to send a sixth message to the base station.

Optionally, the first TA value is obtained by the base station according to the target TA value and the measurement TA value, or the first TA value is obtained by the base station according to the initial TA value and the measurement TA value, and the measurement TA value is a TA value determined when the base station receives the third message or the fourth message.

Please refer to fig. 4, which is a schematic structural diagram of a base station according to an embodiment of the present application.

A base station, comprising:

a sending unit 401, configured to send a first message to a first network device, where the first message carries a first timing advance TA value, the first TA value is smaller than or equal to a first time delay, and the first time delay is a difference between a time when a base station sends the first message and a time when a terminal receives the first message;

a receiving unit 402, configured to receive a second message sent by the first network device, where the second message is a message sent by the terminal to the first network device according to the first TA value.

The method performed by each unit of the base station in the embodiment of the present application is similar to the method performed by the base station in the embodiment shown in fig. 2, and details thereof are not repeated here.

Please refer to fig. 5, which is a schematic structural diagram of a base station according to an embodiment of the present application.

A base station, comprising:

a sending unit 501, configured to send a first message to a first network device, where the first message carries a first timing advance TA value, the first TA value is less than or equal to a first time delay, and the first time delay is a difference between a time when a base station sends the first message and a time when a terminal receives the first message;

a receiving unit 502, configured to receive a second message sent by the first network device, where the second message is a message sent by the terminal to the first network device according to the first TA value.

Optionally, the receiving unit 501 is further configured to receive a third message sent by the first network device, where the third message is sent by the terminal according to the initial TA value, and the initial TA value is sent to the terminal by the base station;

the base station further comprises:

a determining unit 503, configured to determine a measurement TA value, where the measurement TA value is a TA value determined when the base station receives the third message;

the sending unit 501 is further configured to send a fifth message to the first network device.

Optionally, the receiving unit 502 is further configured to receive a fourth message sent by the first network device, where the fourth message is sent by the terminal according to a target TA value, the target TA value is obtained by the terminal according to the first step size and the initial TA value, and the first step size and the initial TA value are sent to the terminal by the base station;

the base station further comprises:

a determining unit 503, configured to determine a measurement TA value, where the measurement TA value is a TA value determined when the base station receives the fourth message;

Optionally, the receiving unit 502 is further configured to receive a sixth message sent by the first network device, where the sixth message carries the target TA value or the initial TA value;

the determining unit 503 is further configured to obtain a first TA value according to the target TA value and the measured TA value, or the base station obtains the first TA value according to the initial TA value and the measured TA value.

Optionally, the base station further includes:

an updating unit 504 is configured to update the initial TA value according to the first TA value.

Please refer to fig. 6, which is a schematic structural diagram of a network device according to an embodiment of the present application.

The processor 601, the memory 602, the bus 605, and the interface 604, wherein the processor 601 is connected to the memory 602 and the interface 604, the bus 605 is connected to the processor 601, the memory 602, and the interface 604, respectively, the interface 604 is used for receiving or sending data, and the processor 601 is a single-core or multi-core central processing unit, or a specific integrated circuit, or one or more integrated circuits configured to implement the embodiments of the present invention. The memory 602 may be a Random Access Memory (RAM), or may be a non-volatile memory (non-volatile memory), such as at least one hard disk memory. The memory 602 is used to store computer-executable instructions. Specifically, the computer-executable instructions may include a program 603.

In this embodiment, when the processor 601 calls the program 603, the network device in fig. 6 may perform the operations performed by the network device in the embodiment shown in fig. 2, which is not described herein again.

Please refer to fig. 7, which is a schematic structural diagram of a base station according to an embodiment of the present application.

The processor 701, the memory 702, the bus 705, and the interface 704, where the processor 701 is connected to the memory 702 and the interface 704, the bus 705 is connected to the processor 701, the memory 702, and the interface 704, respectively, the interface 704 is used for receiving or transmitting data, and the processor 701 is a single-core or multi-core central processing unit, or a specific integrated circuit, or one or more integrated circuits configured to implement an embodiment of the present invention. The memory 702 may be a Random Access Memory (RAM), or may be a non-volatile memory (non-volatile memory), such as at least one hard disk memory. The memory 702 is used to store computer-executable instructions. Specifically, the computer-executable instructions may include program 703.

In this embodiment, when the processor 701 invokes the program 703, the base station in fig. 7 may execute the operations executed by the base station in the embodiment shown in fig. 2, which is not described herein again.

It should be understood that the processors mentioned in the network device and the base station in the above embodiments of the present application, or provided in the above embodiments of the present application, may be a Central Processing Unit (CPU), and may also be other general processors, Digital Signal Processors (DSP), application-specific integrated circuits (ASIC), Field Programmable Gate Arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and so on. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the number of the processors in the network device and the base station in the above embodiments in the present application may be one or multiple, and may be adjusted according to the actual application scenario, and this is merely an exemplary illustration and is not limited. The number of the memories in the embodiment of the present application may be one or multiple, and may be adjusted according to an actual application scenario, which is only an exemplary illustration and is not limited herein.

It should be further noted that, when the network device and the base station include a processor (or a processing unit) and a memory, the processor in this application may be integrated with the memory, or the processor and the memory are connected through an interface, which may be adjusted according to an actual application scenario, and is not limited.

The present application provides a chip system comprising a processor for supporting a network device and a base station to implement the functions of the controller involved in the above method, e.g. to process data and/or information involved in the above method. In one possible design, the system-on-chip further includes a memory, the memory being used to hold the necessary program instructions and data. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In another possible design, when the chip system is a chip in a user equipment or an access network, the chip includes: a processing unit, which may be, for example, a processor, and a communication unit, which may be, for example, an input/output interface, a pin or a circuit, etc. The processing unit may execute computer-executable instructions stored by the storage unit to cause chips within the network device and the base station, etc., to perform the steps performed by the first network device and the base station in any of the embodiments of fig. 3 or fig. 4 described above. Alternatively, the storage unit may be a storage unit in a chip, such as a register, a cache, and the like, and the storage unit may also be a storage unit located outside the chip in a network device, a base station, and the like, such as a read-only memory (ROM) or another type of static storage device that can store static information and instructions, a Random Access Memory (RAM), and the like.

The embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a computer, implements the method flows executed by the controllers of the network device and the base station in any of the above method embodiments. Correspondingly, the computer can be the network equipment and the base station.

It should be understood that the controller or processor mentioned in the above embodiments of the present application may be a Central Processing Unit (CPU), and may also be one or a combination of various other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the number of the processors or controllers in the network device or the base station or the chip system in the above embodiments in the present application may be one or multiple, and may be adjusted according to practical application scenarios, and this is merely an exemplary illustration and is not limited. The number of the memories in the embodiment of the present application may be one or multiple, and may be adjusted according to an actual application scenario, which is only an exemplary illustration and is not limited herein.

It should also be understood that the memory or the readable storage medium and the like mentioned in the network device or the base station and the like in the above embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

Those of ordinary skill in the art will appreciate that the steps performed by the network device or base station or processor in whole or in part to implement the embodiments described above may be performed by hardware or a program instructing associated hardware to perform the steps. The program may be stored in a computer-readable storage medium, which may be read only memory, random access memory, or the like. Specifically, for example: the processing unit or processor may be a central processing unit, a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

When implemented in software, the method steps described in the above embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The available media may be magnetic media (e.g., floppy disks, hard disks, tapes), optical media (e.g., DVDs), or semiconductor media, among others.

The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and are merely descriptive of the various embodiments of the application and how objects of the same nature can be distinguished. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present application, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that in the description of the present application, unless otherwise indicated, "/" indicates a relationship where the objects associated before and after are an "or", e.g., a/B may indicate a or B; in the present application, "and/or" is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural.

The word "if" or "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A data processing method, comprising:

a first network device receives a first message sent by a base station, wherein the first message carries a first Timing Advance (TA) value, the first TA value is less than or equal to a first time delay, and the first time delay is a difference value between the time when the base station sends the first message and the time when a terminal receives the first message;

the first network equipment sends the first message to a terminal;

the first network equipment receives a second message sent by the terminal, wherein the second message is a message sent by the terminal according to the first TA value;

the first network device sends the second message to the base station.

2. The method of claim 1, wherein before the first network device receives the first message sent by the base station, the method further comprises:

the first network equipment receives a third message sent by the terminal, wherein the third message is sent by the terminal according to an initial TA value, and the initial TA value is set by the base station;

the first network device sends the third message to the base station.

3. The method of claim 2, wherein after the first network device sends the third message to the base station, the method further comprises:

and the first network equipment receives a fourth message sent by the terminal, wherein the fourth message is sent by the terminal according to a target TA value, the target TA value is obtained by the terminal according to a first step length and the initial TA value, and the first step length is set by the base station.

4. The method of claim 2 or 3, wherein after the first network device sends the third message to the base station, the method further comprises:

the first network device receives a fifth message sent by a base station, where the fifth message indicates that the base station receives the third message or the fourth message sent by the terminal;

the first network equipment sends the fifth message to the terminal;

the first network equipment receives a sixth message sent by a terminal, wherein the sixth message carries a target TA value or the initial TA value;

the first network device sends the sixth message to the base station.

5. The method of claim 4, wherein the first TA value is obtained by the base station according to the target TA value and a measured TA value, or wherein the first TA value is obtained by the base station according to the initial TA value and the measured TA value, and wherein the measured TA value is a TA value determined when the base station receives the third message or the fourth message.

6. A data processing method, comprising:

a base station sends a first message to a first network device, wherein the first message carries a first Timing Advance (TA) value, the first TA value is less than or equal to a first time delay, and the first time delay is a difference value between the time when the base station sends the first message and the time when a terminal receives the first message;

and the base station receives a second message sent by the first network equipment, wherein the second message is a message sent by the terminal to the first network equipment according to the first TA value.

7. The method of claim 6, wherein before the base station sends the first message to the first network device, the method further comprises:

the base station receives a third message sent by the first network device, wherein the third message is sent by the terminal according to an initial TA value, and the initial TA value is sent to the terminal by the base station;

the base station determines a measurement TA value, wherein the measurement TA value is the TA value determined when the base station receives the third message;

and the base station sends a fifth message to the first network equipment.

8. The method of claim 6, wherein before the base station sends the first message to the first network device, the method further comprises:

the base station receives a fourth message sent by the first network device, where the fourth message is sent by the terminal according to a target TA value, the target TA value is obtained by the terminal according to a first step size and an initial TA value, and the first step size and the initial TA value are sent to the terminal by the base station;

the base station determines a measurement TA value, wherein the measurement TA value is the TA value determined when the base station receives the fourth message;

and the base station sends a fifth message to the first network equipment.

9. The method of claim 7 or 8, wherein after the base station sends the fifth message to the first network device, the method further comprises:

the base station receives a sixth message sent by the first network device, where the sixth message carries the target TA value or the initial TA value;

the base station obtains the first TA value according to the target TA value and the measurement TA value, or the base station obtains the first TA value according to the initial TA value and the measurement TA value.

10. The method of claim 9, wherein after the base station sends the first message to the first network device, the method further comprises:

and the base station updates the initial TA value according to the first TA value.

11. A network device, comprising:

a sending unit, configured to send the first message to a terminal;

the sending unit is further configured to send the second message to the base station.

12. The network device according to claim 11, wherein the receiving unit is further configured to receive a third message sent by the terminal, where the third message is sent by the terminal according to an initial TA value, and the initial TA value is set by the base station;

the sending unit is further configured to send the third message to the base station.

13. The network device of claim 12, wherein the receiving unit is further configured to receive a fourth message sent by the terminal, where the fourth message is sent by the terminal according to a target TA value, the target TA value is obtained by the terminal according to a first step size and the initial TA value, and the first step size is set by the base station.

14. The network device according to claim 12 or 13, wherein the receiving unit is further configured to receive a fifth message sent by a base station, where the fifth message indicates that the base station receives the third message or the fourth message sent by the terminal;

the sending unit is further configured to send the fifth message to the terminal;

the sending unit is further configured to send the sixth message to the base station.

15. The network device according to claim 14, wherein the first TA value is obtained by the base station according to the target TA value and a measured TA value, or wherein the first TA value is obtained by the base station according to the initial TA value and a measured TA value, and the measured TA value is a TA value determined when the base station receives the third message or the fourth message.

16. A base station, comprising:

a sending unit, configured to send a first message to a first network device, where the first message carries a first timing advance TA value, the first TA value is less than or equal to a first time delay, and the first time delay is a difference between a time when the base station sends the first message and a time when a terminal receives the first message;

a receiving unit, configured to receive a second message sent by the first network device, where the second message is a message sent by the terminal to the first network device according to the first TA value.

17. The base station of claim 16, wherein the receiving unit is further configured to receive a third message sent by the first network device, where the third message is sent by the terminal according to an initial TA value, and the initial TA value is sent by the base station to the terminal;

the base station further comprises:

18. The base station of claim 16, wherein the receiving unit is further configured to receive a fourth message sent by the first network device, where the fourth message is sent by the terminal according to a target TA value, the target TA value is obtained by the terminal according to a first step size and an initial TA value, and the first step size and the initial TA value are sent by the base station to the terminal;

the base station further comprises:

19. The base station according to claim 17 or 18, wherein the receiving unit is further configured to receive a sixth message sent by the first network device, where the sixth message carries the target TA value or the initial TA value;

the determining unit is further configured to obtain the first TA value according to the target TA value and the measured TA value, or the base station obtains the first TA value according to the initial TA value and the measured TA value.

20. The base station of claim 19, wherein the base station further comprises:

21. A network device, characterized in that the network device comprises: a processor coupled to a memory, the memory having stored therein at least one program instruction or code, the at least one program instruction or code loaded and executed by the processor to cause the network device to implement the data processing method of any of claims 1-5.

22. A base station, characterized in that the base station comprises: a processor coupled to a memory, the memory having stored therein at least one program instruction or code, the at least one program instruction or code being loaded and executed by the processor to cause the base station to implement the data processing method of any of claims 6-10.

23. A readable storage medium storing instructions that, when executed, cause the method of any of claims 1-10 to be implemented.