WO2018153184A1

WO2018153184A1 - Method and device for processing time advance amount

Info

Publication number: WO2018153184A1
Application number: PCT/CN2018/073069
Authority: WO
Inventors: 吴江
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-02-21
Filing date: 2018-01-17
Publication date: 2018-08-30
Also published as: CN108462989A

Abstract

Provided in the present invention is a method for processing a time advance amount, the method comprising: receiving a message sent by a user equipment, and extracting a pilot symbol in the message; calculating an initial value of a time advance amount according to the pilot symbol; obtaining an environment identifier corresponding to the user equipment, the environment identifier being used to mark an environment state of the user equipment; and when the environmental identifier represents a special environment, determining a final value of the time advance amount according to a preset range of the time advance amount and the initial value of the time advance amount. In addition, a device for processing a time advance amount is also provided.

Description

Time advance processing method and device

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for processing a timing advance.

Background technique

In a Long Term Evolution (LTE) system, a Time Advance (TA) is used to indicate that a evolved base station (eNodeB) receives a parameter of a timing offset of data transmitted by a User Equipment (UE). The physical meaning refers to the back and forth delay between the UE and the eNodeB.

In a implementation of the TA processing technology, the physical layer of the base station side generally performs TA estimation of the uplink Physical Uplink Shared Channel (Pusch), and reports the estimated TA value to the media access control (Media). The access control (MAC) layer, the MAC layer determines whether to send a TA adjustment command to the UE according to the value of the TA to ensure time synchronization between the UE and the base station. However, in the field site, some sites are often subject to interference from outside the system or within the system. When the channel conditions of the environment in which the base station is located are poor, the estimation result of the TA may be biased, which will result in delivery to the UE. The TA value is wrong. If the UE adjusts the TA according to the erroneous TA value, the uplink time will be larger, resulting in worse uplink demodulation performance and even undemodulation.

Summary of the invention

Based on this, it is necessary to provide a processing method and apparatus for effectively improving the timing advancement of demodulation performance in a high interference scenario in view of the above problems.

According to an aspect of the present invention, a method for processing a timing advance includes: receiving a message sent by a user equipment, extracting a pilot symbol in the message; and calculating an initial value of a timing advance according to the pilot symbol; Obtaining an environment identifier corresponding to the user equipment, where the environment identifier is used to mark an environment state in which the user equipment is located; and when the environment identifier indicates a special environment, according to a preset time advance amount range and the time advancement The initial value of the quantity determines the final value of the time advance.

According to an aspect of the present invention, a processing apparatus for timing advance is provided, comprising: an extracting module configured to receive a message sent by a user equipment, extract a pilot symbol in the message; and an initial value calculating module configured to The pilot symbol calculates an initial value of the timing advance; the obtaining module is configured to acquire an environment identifier corresponding to the user equipment, where the environment identifier is used to mark an environment state in which the user equipment is located; and a determining module is set to be When the environmental indicator indicates a special environment, the final value of the time advance amount is determined according to the preset range of the time advance amount and the initial value of the time advance amount.

According to an aspect of the present invention, there is provided one or more non-transitory computer readable storage mediums storing computer executable instructions, which when executed by one or more processors, may cause said one Or the processor performs the following steps: receiving a message sent by the user equipment, extracting a pilot symbol in the message, calculating an initial value of the timing advance according to the pilot symbol, and acquiring an environment identifier corresponding to the user equipment, The environment identifier is used to mark an environment state in which the user equipment is located; and when the environment identifier indicates a special environment, determining a final amount of time advance according to a preset range of the timing advance amount and an initial value of the timing advance amount value.

DRAWINGS

1 is a flow chart of a method for processing a timing advance according to an embodiment of the present invention;

2 is a flowchart of a step of determining a final value of a timing advance amount according to a preset range of a timing advance amount and an initial value of a timing advance amount according to an embodiment of the present invention;

3A and 3B are flowcharts showing a processing method of a timing advance according to another embodiment of the present invention;

4 is a flow chart of a method for processing a timing advance according to still another embodiment of the present invention;

FIG. 5 is a structural block diagram of a processing device for timing advance according to an embodiment of the present invention; FIG.

6 is a structural block diagram of a determining module of the processing device for timing advance shown in FIG. 5;

FIG. 7 is a structural block diagram of a processing device for timing advance according to still another embodiment of the present invention; FIG.

Figure 8 is a block diagram showing the structure of a processing device for timing advance according to still another embodiment of the present invention;

FIG. 9 is a block diagram showing the structure of a processing device for timing advance according to still another embodiment of the present invention.

detailed description

1 is a flow chart of a method for processing a timing advance in one embodiment.

As shown in FIG. 1, a processing method of timing advance according to an embodiment of the present invention is applicable to a base station, and the method includes the following steps 102 to 108.

At step 102, a message sent by the user equipment is received, and the pilot symbols in the message are extracted.

In this embodiment, the base station receives the message sent by the user equipment, and extracts the pilot symbol in the message. The message generally refers to business data, and the user equipment can be an electronic device that can send signals, such as a smart phone, a notebook computer, or a desktop computer. According to the embodiment of the present invention, the base station receives the uplink service data sent by the user equipment by using a physical uplink shared channel (Pusch), and extracts pilot symbols in the service data. Pusch is used to transmit uplink service data sent by the User Equipment (UE) to the base station. There are two time slots in one subframe in the service data, and each time slot includes a pilot symbol known by the receiving end (ie, the base station) for channel estimation and measurement.

At step 104, an initial value of the timing advance is calculated based on the pilot symbols.

In this embodiment, the base station uses the uplink pilot symbols of each user equipment UE to measure the timing advance, and reports the measurement result to the MAC layer. After being processed by the MAC layer, it is sent to the user equipment UE through the downlink channel. The UE performs TA adjustment according to the delivered TA value to ensure synchronization with the base station. The minimum unit of time advancement measured by the base station uplink physical layer is 1Ts, and the uplink synchronization precision is 16Ts, where Ts is the sampling precision, and 16Ts is approximately equal to 0.52μs. Based on this, the base station notifies the user equipment that the granularity when performing TA adjustment must be an integer multiple of 16Ts. Due to the influence of the environment, especially in the case of high interference environments, the measurement of the timing advance is often biased. In order to ensure the performance of the uplink demodulation, the subsequent timing advance may need to be adjusted, in order to facilitate the distinction. In the context of the present application, the value of the time advance amount calculated for the first time is referred to as "the initial value of the time advance amount".

At step 106, an environment identifier corresponding to the user equipment is obtained, where the environment identifier is used to mark the environment state in which the user equipment is located.

In this embodiment, in order to obtain the environment state of the current user equipment, the base station acquires an environment identifier corresponding to the user equipment, where the environment identifier is used to mark the environment state in which the user equipment is located. Environmental conditions can be divided into two categories, one is a normal environment and the other is a special environment. According to an embodiment of the invention, the special environment can be set as needed. For example, the user equipment can be in a high-interference and non-high-speed environment as a special environment, and the others are all in a normal environment. This embodiment focuses on the case where the user equipment is in a special environment. According to an embodiment of the present invention, the environment identifier of the special environment may be set to “Flag=1”, and the environment identifier of the normal environment is set to “Flag=0”. Therefore, according to the obtained environment identifier, it can be known what environment the user equipment is in. According to the embodiment of the present invention, the setting value of the environment identifier may be a result obtained by judging the environment of the user equipment last time. When determining that the environment of the user equipment is in a special environment, setting “Flag=1”, when determining the user equipment When the environment is in a normal environment, set Flag=0. Therefore, according to the environment identifier, the environment state of the user equipment can be obtained.

At step 108, when the environmental indicator indicates a special environment, the final value of the time advance amount is determined according to the preset range of the time advance amount and the initial value of the time advance amount.

In this embodiment, when the base station obtains the environment identifier indicating that the environment is a special environment, the initial value of the time advance amount needs to be restricted according to the preset time advance amount range, and in the context of the present application, The value of the adjusted timing advance is called the "final value of the timing advance". The restrictive adjustment of the initial value of the timing advance can be performed by setting the range of the timing advance amount in advance, that is, setting the maximum value and the minimum value of the timing advance amount. When the initial value of the calculated time advance amount is greater than the maximum value or less than the minimum value, the initial value of the time advance amount is adjusted to adjust the value of the time advance amount to a preset time advance amount In the range. In an embodiment, when the initial value of the timing advance is greater than the maximum value, the maximum value is used as the final value of the adjusted timing advance amount, and when the initial value of the timing advance amount is less than the minimum value, This minimum value is used as the final value of the adjusted timing advance. According to the embodiment of the present invention, the environment identifier is first obtained by the physical layer of the base station. When the environment identifier indicates a special environment, the physical layer checks the initial value of the time advance amount to obtain the final value of the time advance amount. The final value of the timing advance is then reported to the MAC layer. The MAC layer determines whether to issue a TA adjustment command to the user equipment according to the final value of the timing advancement to ensure time synchronization between the user equipment and the base station. In this embodiment, when the user equipment is in a special environment, the TA adjustment is performed on the user equipment according to the adjusted time advance amount, and the TA value of the user equipment can be implemented. The "small step adjustment" avoids the one-time adjustment too large, leading to the phenomenon of demodulation failure and the like, and improves the demodulation performance of the uplink in the high interference and non-high speed environment.

In this embodiment, when it is determined that the user equipment is in a special environment, the value of the reported time advance amount is limited. As long as the high-interference scenario is set to a special environment, the scenario can be implemented in a high-interference scenario. The time advance amount corresponding to the user equipment is restricted to prevent the step of adjusting the error from being too large, so that when the time amount is adjusted, the uplink of the base station side is beyond the demodulation capability of the receiving end algorithm, and the uplink demodulation failure is avoided. The device dropped calls and the like, which effectively improved the demodulation performance of the uplink in a high interference environment.

2 is a flow chart showing the step (ie, step 108) of determining the final value of the timing advance according to the preset range of the timing advance amount and the initial value of the timing advance amount, according to an embodiment of the present invention.

As shown in FIG. 2, step 108 can include sub-steps 108A through 108C.

At step 108A, it is determined whether the initial value of the timing advance is greater than a preset first threshold or is less than a preset second threshold, and when the determination is established (ie, the "YES" branch of step 108A), the method proceeds to the step 108B, otherwise (ie, the "NO" branch of step 108A), the method proceeds to step 108C.

In this embodiment, in order to restrict the value of the timing advance amount in a special environment, it is first determined whether the initial value of the time advance amount is within a preset time advance amount, that is, the time advance amount is determined. Whether the initial value is greater than a preset first threshold or less than a preset second threshold. The first threshold may be a maximum of the preset time advance range, and the second threshold may be a minimum of the preset time advance range, and obviously, the first threshold is greater than the second threshold. According to an embodiment of the present invention, assuming that the set time advance amount ranges from [-32Ts, +32Ts], the first threshold is 32Ts and the second threshold is -32Ts.

At step 108B, when the initial value of the timing advance is greater than the preset first threshold, the first threshold is used as the final value of the timing advance; when the initial value of the timing advance is less than the preset second threshold, The second threshold is used as the final value of the timing advance.

In this embodiment, when the initial value of the timing advance is greater than the preset first threshold, the initial value of the timing advance is modified to a first threshold, that is, the first threshold is used as the final value of the timing advance. When the initial value of the timing advance is less than the preset second threshold, the initial value of the timing advance is modified to a second threshold, that is, the second threshold is used as the final value of the timing advance. For example, in the case where the first threshold is 32Ts and the second threshold is -32Ts, if the initial value of the timing advance exceeds the range of [-32Ts, +32Ts], when the initial value of the timing advance is greater than 32Ts, 32Ts is the final value of the timing advance. When the initial value of the timing advance is less than -32Ts, -32Ts is taken as the final value of the timing advance. .

At step 108C, the initial value of the timing advance is taken as the final value of the timing advance.

In this embodiment, when the initial value of the timing advance is greater than the second threshold and less than the first threshold, that is, within the range of the preset timing advance, the value of the timing advance is not required to be adjusted and maintained. It can be changed, that is, the initial value of the timing advance is directly used as the final value of the timing advance. According to the above example, in the case where the first threshold is 32Ts and the second threshold is -32Ts, if the initial value of the timing advance is in the range of [-32Ts, +32Ts], it remains unchanged, that is, the time is directly advanced. The initial value of the quantity is the final value of the most advanced amount of time.

3A and 3B are flowcharts of a method of processing a timing advance according to another embodiment of the present invention.

As shown in FIG. 3A, the processing method of the timing advance according to an embodiment of the present invention may further include steps 110 to 114 before step 106.

At step 110, a signal to noise ratio (SINR) and noise interference (NI) corresponding to the user equipment are calculated based on the pilot symbols.

In this embodiment, after the base station extracts the pilot symbols, it is also required to calculate a signal-to-noise ratio SINR and a noise interference NI corresponding to the user equipment according to the pilot symbols, where a signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR, abbreviated as "signal to noise ratio", refers to the ratio of the received signal strength to the strength of the received interfering signal (eg, including noise and interference). The value of Nosie Interference (NI) is used to measure the level of noise interference. The calculation of SINR and NI can be performed by existing calculation methods, and the calculation methods of SINR and NI are not limited here.

At step 112, the number of resource blocks (RBs) occupied by the user equipment is obtained.

In this embodiment, a resource block (RB) is a resource scheduling unit in LTE, and functions as a bearer for transmitting data for transmitting data. In the uplink demodulation, if the number of RBs occupied by the user equipment UE is relatively small, the deviation of the TA estimation may be larger, because the available sample points are small, and the corresponding estimation deviation is larger. Especially in the high interference scenario, the fewer the number of RBs occupied by the user equipment, the more demodulation performance is degraded, and the problem of UE dropped calls is more likely to occur.

At step 114, it is determined whether the user equipment is in a special environment according to a signal-to-noise ratio (SINR), a noise interference (NI), and a resource block (RB) number, and when the user equipment is in a special environment, the environment identifier corresponding to the user equipment is set. For a special environment.

In addition, according to the embodiment of the present invention, in order to facilitate the next time to quickly determine whether the user equipment is in a special environment, the current measurement result may be used as the next judgment basis, that is, steps 110 to 114 are performed after step 108, as shown in FIG. 3B. Shown. For the same user equipment, the environment in which it is located is constant for a short period of time, so the current measurement result can be used as the next judgment basis. If the currently measured user equipment is in a special environment, the environment identifier corresponding to the user equipment is set to a special environment. If the currently measured user equipment is in a normal environment, the environment identifier corresponding to the user equipment is set to a normal environment. In this way, when the user equipment transmits the service data next time, it can be determined directly according to the environment identifier whether the user equipment is in a special environment, and then decide whether to restrict the time advance amount. Similarly, the last measurement can be used to determine if the user device is currently in a particular environment.

In this embodiment, it is determined whether the user equipment is in a special environment, and the SINR value corresponding to the user equipment is related to the NI value and the number of RBs. In one embodiment, the signal to noise ratio, noise interference, and threshold of the number of RBs may be set separately. It is assumed that the threshold of the signal-to-noise ratio SINR is set to SinrThr, the threshold of the noise interference NI is set to NIThr, and the threshold of the number of RBs is set to 10, and it is determined that the measured SINR is smaller than SinrThr, and NI is greater than NIThr, and the number of RBs is less than or equal to 10. User equipment is in a "special environment." The corresponding judgment condition formula is expressed as follows:

Among them, "Flag=1" indicates a special environment, and "Flag=0" indicates a normal environment. According to the embodiment of the present invention, the TA value, the SINR value, and the RB number are first calculated by the physical layer of the base station, and the values of the three are reported to the MAC layer, and then the MAC layer reports the TA value, the SINR value, and the RB number according to the physical layer. It is judged whether the user equipment is in a special environment and the judgment result is sent to the physical layer, and finally the physical layer performs the adjustment of the TA value.

4 is a flow chart of a method for processing a timing advance according to still another embodiment of the present invention.

As shown in FIG. 4, the processing method of the timing advance according to an embodiment of the present invention may further include

steps

116 and 117.

At step 116, when the environmental identifier indicates a special environment, the compensation value corresponding to the message is determined according to the initial value of the timing advance and the preset compensation range.

In this embodiment, when the base station obtains the environment identifier to indicate the special environment, in addition to restrictively adjusting the initial value of the estimated time advance amount, the base station needs to determine the current message according to the initial value of the estimated time advance amount. The compensation value is the TA compensation for this data packet. Generally, the estimated TA value is directly used as the compensation value. However, since the estimated TA value varies in a special environment, when the TA compensation is performed on the packet data based on the estimated TA value, the compensation value needs to be restricted. The restriction value is adjusted in the form of setting the compensation range, and the compensation value is adjusted by judging whether the estimated TA value is within the set compensation range, that is, according to the initial value of the time advance amount and the preset compensation range. The compensation value corresponding to the above message. According to an embodiment of the present invention, the maximum value and the minimum value of the compensation range are set, and when the estimated TA value (ie, the initial value of the time advance amount) is greater than the maximum value, the maximum value is used as the determined compensation value, and the estimated value is obtained. When the TA value is less than the minimum value, the minimum value is used as the determined compensation value, and when the estimated TA value is between the minimum value and the maximum value range, the estimated TA value is directly used as the compensation value. In one embodiment, the compensation range can be set to [-32Ts, +32Ts]. If the compensated TA value exceeds the range of [-32Ts, +32Ts], when the value is greater than 32Ts, the corresponding compensation value is adjusted to 32Ts. When it is less than -32Ts, the corresponding compensation value is set to -32Ts. If the compensated TA value is within the range of [-32Ts, +32Ts], it remains unchanged, that is, it is compensated according to the measured value.

At step 117, the message is subjected to corresponding compensated demodulation based on the determined compensation value.

In this embodiment, the timing advance is adjusted to facilitate demodulation of the received message next time, and the compensation value is determined to compensate and demodulate the currently received message (service data). Since the estimated TA value may be too large in a special environment, the compensation value needs to be determined first when demodulating the received service data, and then the service data received this time is compensated according to the determined compensation value. And then demodulating the compensated service data.

In this embodiment, in order to prevent the deviation of the TA value estimated under high interference from being excessively large, the current data is compensated more biased, which affects the current demodulation. Here, the compensation value needs to be restricted. Generally, the limitation of the compensation value and the adjustment method of the timing advance can be consistent, that is, n Ts are compensated and n Ts are reported, and then the user equipment UE is also adjusted by n Ts, which is beneficial to ensure the TA processing flow. In a stable state, the error caused by sudden interference causes the entire TA processing process to be messed up.

In an embodiment, after the step 108, the method further includes: sending a corresponding adjustment instruction to the user equipment according to the final value of the timing advance.

In this embodiment, when the environment identifier indicates a special environment, the base station physical layer first needs to calculate an initial value of the time advance amount value according to the pilot symbol, and then according to the preset time advance amount range and the initial value of the time advance amount. Restrictively adjusting the timing advance to obtain the final value of the timing advance, and then reporting the final value of the obtained timing advance to the MAC layer, and the MAC layer determines whether to issue the TA adjustment command according to the final value of the timing advance. According to the embodiment of the present invention, the MAC layer of the base station determines whether the final value of the time advance exceeds a preset threshold. When the preset threshold is exceeded, the TA adjustment command is sent to the user equipment UE to ensure the UE and the base station. Time synchronization. In the present embodiment, the processing performance of the base station can be improved by restrictively adjusting the timing advance in a high-interference environment, and can be extended to the base station TA processing of the wireless communication.

FIG. 5 is a structural block diagram of a processing device for timing advance according to an embodiment of the present invention.

As shown in FIG. 5, the processing device for timing advance according to an embodiment of the present invention may include an extraction module 502, an initial value calculation module 504, an acquisition module 506, and a determination module 508.

The extraction module 502 is configured to receive a message sent by the user equipment, and extract pilot symbols in the message.

The initial value calculation module 504 is configured to calculate an initial value of the timing advance based on the pilot symbols.

The obtaining module 506 is configured to obtain an environment identifier corresponding to the user equipment, where the environment identifier is used to mark an environment state in which the user equipment is located.

The determining module 508 is configured to determine the final value of the time advance amount according to the preset range of the time advance amount and the initial value of the time advance amount when the environment identifier indicates the special environment.

FIG. 6 is a block diagram showing the structure of the determining module 508 of the processing device for timing advance shown in FIG. 5.

As shown in FIG. 6, the determination module 508 can include a determination module 508A and a final value determination module 508B.

The determining module 508A is configured to determine whether the initial value of the timing advance is greater than a preset first threshold or less than a preset second threshold.

When the initial value of the timing advance is greater than the preset first threshold, the final value determination module 508B takes the first threshold as the final value of the timing advance. When the initial value of the timing advance is less than the preset second threshold, the final value determination module 508B takes the second threshold as the final value of the timing advance.

FIG. 7 is a structural block diagram of a processing device for timing advance according to still another embodiment of the present invention.

As shown in FIG. 7, the timing advance processing apparatus according to still another embodiment of the present invention may further include a calculation module 510, a resource block number acquisition module 512, and an environment identification setting module 514.

The calculation module 510 is configured to calculate a signal to noise ratio (SINR) and a noise interference (NI) corresponding to the user equipment according to the pilot symbols.

The resource block number obtaining module 512 is configured to acquire the number of resource blocks (RBs) occupied by the user equipment.

The environment identifier setting module 514 is configured to determine whether the user equipment is in a special environment according to a signal to noise ratio (SINR), a noise interference (NI), and a resource block (RB) number, and when the user equipment is in a special environment, the environment identifier setting module 514 The environment identifier corresponding to the user equipment is set to a special environment.

FIG. 8 is a block diagram showing the structure of a processing device for timing advance according to still another embodiment of the present invention.

As shown in FIG. 8, the timing advance processing apparatus according to still another embodiment of the present invention may further include a compensation module 516 and a demodulation module 517.

The compensation module 516 is configured to determine a compensation value corresponding to the message according to an initial value of the timing advance and a preset compensation range when the environment identifier indicates a special environment.

The demodulation module 517 is arranged to perform corresponding compensation demodulation on the message based on the determined compensation value.

As shown in FIG. 9, the processing device for timing advance according to still another embodiment of the present invention may further include an adjustment module 518 configured to issue a corresponding adjustment instruction to the user equipment according to the final value of the timing advance.

A person skilled in the art can understand that all or part of the process of implementing the above embodiments can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium, such as the present invention. In an embodiment, the program can be stored in a storage medium of the computer system and executed by at least one processor in the computer system to implement a process comprising an embodiment of the methods as described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A method for processing a timing advance, the method comprising:

Receiving a message sent by the user equipment, and extracting a pilot symbol in the message;

Calculating an initial value of the timing advance according to the pilot symbol;

Obtaining an environment identifier corresponding to the user equipment, where the environment identifier is used to mark an environment state in which the user equipment is located;

When the environmental identifier indicates a special environment, the final value of the timing advance is determined according to a preset range of the timing advance amount and an initial value of the timing advance amount.
The method according to claim 1, wherein when the environmental identifier indicates a special environment, the step of determining a final value of the timing advance according to a preset range of the timing advance amount and an initial value of the timing advance amount comprises:

Determining whether an initial value of the timing advance is greater than a preset first threshold or less than a preset second threshold;

When the initial value of the timing advance is greater than a preset first threshold, the first threshold is used as a final value of the timing advance; or

When the initial value of the timing advance is less than a preset second threshold, the second threshold is used as the final value of the timing advance.
The method of claim 1, wherein before the step of acquiring the environment identifier corresponding to the user equipment, the method further comprises:

Calculating a signal to noise ratio (SINR) and a noise interference (NI) corresponding to the user equipment according to the pilot symbols;

Obtaining a number of resource blocks (RBs) occupied by the user equipment;

Determining whether the user equipment is in a special environment according to the signal-to-noise ratio (SINR), noise interference (NI), and resource block (RB) number, and setting the environment identifier corresponding to the user equipment when the user equipment is in a special environment. Special environment.
The method according to claim 1, wherein, after said step of determining a special environment, said step of determining a final value of said time advance amount according to a range of a preset amount of time advance amount and an initial value of said time advance amount The method further includes:

Calculating a signal to noise ratio (SINR) and a noise interference (NI) corresponding to the user equipment according to the pilot symbols;

Obtaining a number of resource blocks (RBs) occupied by the user equipment;

Determining whether the user equipment is in a special environment according to the signal-to-noise ratio (SINR), noise interference (NI), and resource block (RB) number, and setting the environment identifier corresponding to the user equipment when the user equipment is in a special environment. Special environment.
The method of claim 1 further comprising:

When the environment identifier indicates a special environment, determining a compensation value corresponding to the message according to an initial value of the timing advance and a preset compensation range;

The message is subjected to corresponding compensation demodulation according to the determined compensation value.
The method according to claim 1, wherein, after said step of determining a special environment, said step of determining a final value of said time advance amount according to a range of a preset amount of time advance amount and an initial value of said time advance amount The method further includes:

The corresponding adjustment instruction is sent to the user equipment according to the final value of the timing advance.
A timing advance processing device comprising:

An extracting module, configured to receive a message sent by the user equipment, and extract a pilot symbol in the message;

An initial value calculation module configured to calculate an initial value of the timing advance according to the pilot symbol;

An acquiring module, configured to obtain an environment identifier corresponding to the user equipment, where the environment identifier is used to mark an environment state in which the user equipment is located;

The determining module is configured to determine a final value of the timing advance according to a preset range of the timing advance amount and an initial value of the timing advance amount when the environment identifier indicates a special environment.
The apparatus of claim 7, wherein the determining module comprises:

a determining module, configured to determine whether an initial value of the timing advance is greater than a preset first threshold or less than a preset second threshold;

a final value determining module, when the initial value of the timing advance is greater than a preset first threshold, the final value determining module uses the first threshold as a final value of the timing advance, when the time advances When the initial value of the amount is less than the preset second threshold, the final value determining module uses the second threshold as the final value of the timing advance.
The apparatus of claim 7 further comprising:

a calculation module, configured to calculate a signal to noise ratio (SINR) and a noise interference (NI) corresponding to the user equipment according to the pilot symbol;

a resource block number obtaining module, configured to acquire a resource block (RB) number occupied by the user equipment;

An environment identifier setting module, configured to determine, according to the signal to noise ratio (SINR), noise interference (NI), and resource block (RB) number, whether the user equipment is in a special environment, and when the user equipment is in a special environment, the environment identifier The setting module sets the environment identifier corresponding to the user equipment to a special environment.
The apparatus of claim 7 further comprising:

a compensation module, configured to: when the environmental identifier indicates a special environment, determine a compensation value corresponding to the message according to an initial value of the timing advance and a preset compensation range;

And a demodulation module configured to perform corresponding compensation and demodulation on the message according to the determined compensation value.
The apparatus of claim 7 further comprising:

The adjustment module is configured to issue a corresponding adjustment instruction to the user equipment according to the final value of the timing advance.