WO2018059009A1 - Uplink signal quality compensation method and device - Google Patents

Abstract

Disclosed are an uplink signal quality compensation method and device, relating to communications technology. By means of the uplink signal quality compensation method provided in the embodiments of the present invention, according to an acquired network signal in an interaction process of a terminal and a network side, determining, through calculation, analysis and judgement, the relative position between a user and a base station, so as to adjust a transmitting power of the terminal, to realize the aim of increasing cell uplink signal coverage. This method does not need to increase the network arrangement cost of an operator, and only makes a very small amendment to parameters of the base station by means of increasing the transmitting power of the terminal, thereby improving the network coverage of TD-LTE, and providing a better usage experience for a mobile user.

Description

Uplink signal quality compensation method and device Technical field

The present application relates to, but is not limited to, the field of mobile communications, and in particular, to an uplink signal quality compensation method and apparatus.

Background technique

As shown in Figure 1, LTE (Long Term Evolution) is the next-generation mobile communication standard in the world after the third generation of mobile communication. It is the evolution of 3G and is a transition between 3G and 4G technologies. It is the global standard of 3.9G. According to the characteristics of the global mainstream 3G network, the evolved LTE network is further divided into FDD LTE (Frequency Division Duplexing LTE) and TDD LTE (Time Division Duplexing LTE).

FDD LTE is characterized by the system receiving and transmitting on two symmetric frequency channels separated (up and down frequency interval 190MHz), and separating the receiving and transmitting channels by using the guaranteed frequency band. FDD must use a paired frequency, providing third-generation services in every 2x5MHz bandwidth. This mode can fully utilize the uplink and downlink spectrum when supporting symmetric services. TD-LTE is a time division duplex. The uplink and downlink transmission signals are in the same frequency band, and are transmitted in a discontinuous manner by scheduling signals to different time periods. It can flexibly configure the frequency and use the scattered frequency band that is difficult to use in the FDD system. It can adjust the uplink and downlink time slot conversion points to improve the downlink time slot ratio, and can support asymmetric services very well.

Most operators around the world have begun to deploy LTE networks and are already commercial. These operators are also divided into two camps. The 3G network is a WCDMA (Wideband Code Division Multiple Access) and CDMA2000 operator. After the network evolution, it is expected to deploy an FDD LTE network. The 3G network is a TDS-CDMA operator. After the evolution, it is expected to deploy a TD-LTE network. The two largest operators currently deploying TD-LTE networks worldwide are China Mobile and the US Sprint.

The TD-LTE network can obtain continuous large bandwidth spectrum resources, but since it is a high frequency band, the signal attenuation is large during signal propagation. In the following, Sprint is taken as an example to illustrate the necessity of improving TD-LTE network coverage.

The spectrum resources owned by Sprint are distributed according to the frequency of high, medium and low: low frequency B26. 817-824MHz/862-869MHz, 7MHz bandwidth, some are also used as 1x voice/EVDO, used as LTE up to 5MHz. IF B25, 1910-1915MHz/1990-1995MHz, 5MHz bandwidth, used as LTE. High frequency B41, 2496-2690MHz up to 194MHz bandwidth. Limited to current technology, up to 60MHz bandwidth can be used on a single terminal. However, the excess spectrum can be flexibly used. When a non-co-frequency network is used, neighboring cells reduce interference, so that the actual rate of the system is higher than the LTE network rate and capacity of the same-frequency network.

According to the characteristics of wireless electromagnetic wave transmission, the higher the frequency, the greater the signal attenuation. The three spectra owned by Sprint are sorted according to the attenuation size: B26<B25<B41. B41 has the highest frequency and the largest attenuation. Among them, B25 attenuation is 3dB smaller than B41. B26 is 7.4dB smaller than B25. According to the actual network deployment statistics of Sprint, the network coverage of B41 is nearly 30% smaller than that of B25 under the same technical conditions.

Based on the frequency resources of Sprint, Sprint's spectrum is the most abundant in B41. In theory, the network capacity and rate can be the highest, far exceeding the other bands of Sprint B25, B26. But the shortcoming is also obvious, that is, the wireless transmission attenuation is the largest, the signal is poor, resulting in the actual network rate is low, and the user experience is poor. To solve this problem, it is usually by increasing the number of base stations, but increasing the number of base stations will lead to an increase in the cost of Sprint operators.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the invention provides an uplink signal quality compensation method and device for solving the problems in the related art.

According to an aspect of the embodiments of the present invention, an uplink signal quality compensation method is provided, including:

Determining that the user moves from the cell center to the cell edge according to the strength of the received network signal;

The uplink signal transmission power is increased to the sum of the maximum transmission power when the user is at the center of the cell and a preset adjustment value.

Optionally, the step of determining, according to the strength of the received network signal, that the user moves from the cell center to the cell edge, includes:

Determining, according to the received network signal, a determination between the terminal and the network signal transmitting end Positional parameter

When the parameter P is greater than or equal to the preset first threshold value and becomes smaller than the first threshold value, it is determined that the user moves from the cell center to the cell edge.

Optionally, the preset adjustment value is less than or equal to 2 dbm, or the sum of the maximum transmit power and the preset adjustment value when the user is in the cell center position is less than or equal to the allowed maximum transmit power of the user.

Optionally, the method further includes:

Determining that the user moves from the cell edge to the cell center according to the strength of the received network signal;

The uplink signal transmission power is restored to the maximum transmission power when the user is at the center of the cell.

Optionally, the step of determining, according to the strength of the received network signal, that the user moves from the cell edge to the cell center, includes:

Determining, according to the received network signal, a parameter for determining a relative position between the terminal and the network signal transmitting end;

When the value of the parameter is changed from being less than or equal to a preset second threshold to being greater than the second threshold, determining that the user moves from the cell edge to the cell center, and the second threshold is greater than Or equal to the first threshold.

The application further provides a computer readable storage medium storing computer executable instructions that are implemented when the computer executable instructions are executed.

According to another aspect of the embodiments of the present invention, an uplink signal quality compensation apparatus is provided, including:

Determining a unit, configured to determine that the user moves from the cell center to the cell edge according to the strength of the received network signal;

The adjusting unit is configured to increase the uplink signal transmitting power to the sum of the maximum transmitting power when the user is in the cell center position and the preset adjustment value.

Optionally, the determining unit is configured to:

Determining, according to the received network signal, a parameter for determining a relative position between the terminal and the network signal transmitting end;

When the value of the parameter is greater than or equal to the preset first threshold value and becomes less than the first threshold value, it is determined that the user moves from the cell center to the cell edge.

Optionally, the determining unit is further configured to: determine, according to the strength of the received network signal, that the user moves from the cell edge to the cell center;

The adjustment unit is further configured to:

The uplink signal transmission power is restored to the maximum transmission power when the user is at the center of the cell.

Optionally, the determining unit is configured to determine that the user moves from the cell edge to the cell center according to the strength of the received network signal by:

Determining, according to the received network signal, a parameter for determining a relative position between the terminal and the network signal transmitting end;

When the value of the parameter is changed from being less than or equal to a preset second threshold to being greater than the second threshold, determining that the user moves from the cell edge to the cell center, and the second threshold is greater than Or equal to the first threshold.

The beneficial effects of the embodiments of the present invention are as follows: The uplink signal quality compensation method and apparatus provided by the embodiments of the present invention determine, according to the network signals acquired by the terminal in the network side interaction process, through calculation and analysis, determine the user and the base station. Relative position, thereby adjusting the transmission power of the terminal, to achieve the purpose of increasing the uplink signal coverage of the cell. The method does not need to increase the network deployment cost of the operator. By increasing the transmission power of the terminal, only very small modifications are made to the parameters of the base station, which improves the network coverage of the TD-LTE and provides better use for mobile users. Experience.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related art, the drawings used in the embodiments or the related art description will be briefly described below. Obviously, the drawings in the following description are merely Some embodiments of the present invention may also be used to obtain other drawings based on these drawings without departing from the art.

FIG. 1 is a schematic diagram of a route of 2G to 4G evolution in the related art;

2 is a flowchart of an uplink signal quality compensation method according to an embodiment of the present invention;

FIG. 3 is a flowchart of an optional uplink signal quality compensation method according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an uplink signal quality compensation apparatus according to an embodiment of the present invention.

Embodiments of the invention

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present disclosure.

As shown in FIG. 2, the uplink signal quality compensation method provided by the embodiment of the present invention includes:

Step S201: Determine, according to the strength of the received network signal, that the user moves from the cell center to the cell edge;

Step S202: Increase the uplink signal transmission power to the sum of the maximum transmit power when the user is in the cell center position and a preset adjustment value.

If Pmax is the maximum transmit power when the user is in the cell center position, and Δp is a preset power adjustment value, the uplink signal transmit power is increased to Pmax+Δp.

According to the uplink signal quality compensation method, according to the network signal acquired during the interaction between the terminal and the network side, the relative position of the user and the base station is determined through calculation and analysis, thereby adjusting the transmission power of the terminal and enabling the user to reach the base station. The uplink signal can be stronger, and the uplink signal of the original location cannot be recognized by the base station, and the uplink signal of the location can be identified by increasing the uplink power. The purpose of increasing the uplink signal coverage of the cell is achieved. The method does not need to increase the network deployment cost of the operator. By increasing the transmission power of the terminal, only very small modifications are made to the parameters of the base station, which improves the network coverage of the TD-LTE and provides better use for mobile users. Experience.

In an embodiment of the present invention, determining, according to the strength of the received network signal, that the user moves from the cell center to the cell edge according to the strength of the received network signal, includes:

Determining, according to the received network signal, a parameter for determining a relative position between the terminal and the network signal transmitting end (hereinafter, P indicates a value of the parameter);

When P is greater than or equal to the preset first threshold TH1 and becomes less than TH1, it is determined that the user moves from the cell center to the cell edge.

Here, P may be RSRP (Reference Signal Receiving Power), SINR (Signal to Interference plus Noise Ratio), or other suitable parameters may be employed by those skilled in the art. TH1 can be flexibly selected by those skilled in the art depending on the characteristics of the network to which it is applied.

When it is determined whether P is greater than or equal to the preset first threshold TH1 and becomes less than TH1, the result of the previous judgment may be cached. For each judgment, it is first determined whether P is greater than or equal to TH1, and if so, and If the result of the previous judgment is that P is less than TH1, it is determined that P is greater than or equal to the preset first threshold TH1 and becomes smaller than TH1; or, after determining that P is greater than or equal to TH1, the current determination is made. What is the uplink signal transmission power, and if the value is an unadjusted value, it is determined that P is greater than or equal to the preset first threshold TH1 and becomes less than TH1.

Here, the maximum transmit power when the user is in the center of the cell, the protocol specifies that the user for power class 3 (power protocol 3) is 23dbm, but has a tolerance of ±2dbm. In order for the user to transmit signals at a higher power, the user must support higher power. The following two methods can be used: 1. Introducing tolerances in the terminal of the existing power class 3, so that the transmission power can be increased to 2 dbm; 2. The related protocol needs to be modified, and power class 2 (power protocol 2) can be introduced to make power The maximum transmit power allowed by class2 is P'. Operators can flexibly configure Δp according to network characteristics. When mode 1 is adopted, Δp≤2dbm, that is, the preset adjustment value is less than or equal to 2dbm; when mode 2 is used, (Pmax+Δp)≤P', that is, the maximum transmission power and preset when the user is at the center of the cell The sum of the adjustment values is less than or equal to the maximum transmit power allowed by the user.

When it is determined that the user moves from the cell edge to the cell center according to the strength of the received network signal, the uplink signal transmission power can be restored to the maximum transmission power Pmax when the user is in the cell center position, thereby enabling the user to obtain better use. Experience.

Here, according to the strength of the received network signal, the step of determining that the user moves from the cell edge to the cell center includes:

Determining, according to the received network signal, a parameter for determining a relative position between the terminal and the network signal transmitting end (hereinafter, P indicates a value of the parameter);

When P becomes greater than TH2 by less than or equal to the preset second threshold TH2, it is determined that the user moves from the cell edge to the cell center.

The relationship between TH1 and TH2 can be flexibly configured by the operator according to the characteristics of the network. In order to ensure the communication quality between the user and the network, TH2>TH1 is usually set. In extreme cases, TH2 can be equal to TH1, that is, TH2≥TH1.

As shown in FIG. 3, an optional uplink signal quality compensation method includes:

Step S301, determining, according to the received network signal, a parameter P for determining a relative position between the terminal and the network signal transmitting end;

Step S302, determining whether P is greater than or equal to the preset first threshold TH1, becomes less than TH1, if P becomes less than TH1, step S303 is performed, P does not become less than TH1, step S304 is performed;

Step S303, determining that the user moves from the cell center to the cell edge, and improves the uplink signal transmission power to Pmax+Δp, where Pmax is the maximum transmit power when the user is in the cell center position, and Δp is a preset power adjustment value;

Step S304, determining whether P is greater than or equal to the preset second threshold value TH2, and becoming greater than TH2. If P becomes greater than TH2, step S305 is performed, and if P does not become greater than TH2, the process ends;

Step S305: Determine that the user moves from the cell edge to the cell center, and restores the uplink signal transmission power to the maximum transmit power Pmax when the user is in the cell center position.

Through the network signal acquired during the interaction between the terminal and the network, through calculation and analysis and judgment, the relative position of the user and the network is determined, thereby adjusting the transmission power of the terminal, so as to increase the coverage of the uplink signal of the cell. The uplink signal quality compensation method provided by the embodiment of the present invention does not need to increase the network deployment cost of the operator. By enhancing the transmission power of the terminal, only minor modifications are made to the parameters of the base station, and the TD-LTE network is improved. Coverage can provide a better experience for users.

Embodiments of the present invention further provide a computer readable storage medium storing computer executable instructions that are implemented when the computer executable instructions are executed.

An embodiment of the present invention further provides an uplink signal quality compensation apparatus, as shown in FIG. 4, including:

The determining unit 401 is configured to determine that the user moves from the cell center to the cell edge according to the strength of the received network signal;

The adjusting unit 402 is configured to increase the uplink signal transmission power to Pmax+Δp, where Pmax is the maximum transmission power when the user is in the cell center position, and Δp is a preset power adjustment value.

Optionally, the determining unit 401 is configured to:

Determining a parameter P for determining a relative position between the terminal and the network signal transmitting end according to the received network signal;

When the parameter P becomes greater than or equal to TH1 by being greater than or equal to the preset first threshold value TH1, it is determined that the user moves from the cell center to the cell edge.

Optionally, the determining unit 401 is further configured to:

Determining that the user moves from the cell edge to the cell center according to the strength of the received network signal;

The adjustment unit 402 is also configured to:

The uplink signal transmission power is restored to the maximum transmission power Pmax when the user is at the center of the cell.

Optionally, the determining unit 401 is configured to determine that the user moves from the cell edge to the cell center according to the strength of the received network signal in the following manner:

Determining a parameter P for determining a relative position between the terminal and the network signal transmitting end according to the received network signal;

When the parameter P becomes greater than TH2 by less than or equal to the preset second threshold TH2, it is determined that the user moves from the cell edge to the cell center, TH2 ≥ TH1.

According to the uplink signal quality compensation method provided by the embodiment of the present invention, according to the network signal acquired during the interaction between the terminal and the network side, the relative position of the user and the base station is determined through calculation and analysis, thereby adjusting the transmission power of the terminal. The purpose of increasing the uplink signal coverage of the cell is achieved. The method does not need to increase the network deployment cost of the operator. By increasing the transmission power of the terminal, only very small modifications are made to the parameters of the base station, which improves the network coverage of the TD-LTE and provides better use for mobile users. Experience.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and functional blocks/units of the methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical units; for example, one physical component may have multiple functions, or one A function or step can be performed cooperatively by several physical components. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer readable medium, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or may Any other medium used to store the desired information and that can be accessed by the computer. Moreover, it is well known to those skilled in the art that communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .

The various embodiments in the specification are described in a progressive manner, and the same or similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. Especially for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

While the present invention has been described by the embodiments of the invention, it will be understood that Thus, it is intended that the present invention cover the modifications and variations of the embodiments of the invention.

Industrial applicability

According to the uplink signal quality compensation method and apparatus provided by the embodiment of the present invention, according to the network signal acquired during the interaction between the terminal and the network side, the relative position of the user and the base station is determined through calculation and analysis, thereby adjusting the transmission of the terminal. Power, to achieve the purpose of increasing the uplink signal coverage of the cell. The method does not need to increase the network deployment cost of the operator. By increasing the transmission power of the terminal, only very small modifications are made to the parameters of the base station, which improves the network coverage of the TD-LTE and provides better use for mobile users. Experience.

Claims (11)

An uplink signal quality compensation method includes: Determining that the user moves from the cell center to the cell edge according to the strength of the received network signal; The uplink signal transmission power is increased to the sum of the maximum transmission power when the user is at the center of the cell and a preset adjustment value. The method of claim 1, wherein the determining, according to the strength of the received network signal, the step of the user moving from the cell center to the cell edge comprises: Determining, according to the received network signal, a parameter for determining a relative position between the terminal and the network signal transmitting end; When the value of the parameter is greater than or equal to the preset first threshold value and becomes less than the first threshold value, it is determined that the user moves from the cell center to the cell edge. The method of claim 1, wherein the preset adjustment value is less than or equal to 2 dbm, or the sum of the maximum transmit power and the preset adjustment value when the user is at the cell center position is less than or equal to the allowed The maximum transmit power of the user. The method of claim 1 further comprising: Determining that the user moves from the cell edge to the cell center according to the strength of the received network signal; The uplink signal transmission power is restored to the maximum transmission power when the user is at the center of the cell. The method of claim 4, wherein the determining, according to the strength of the received network signal, the step of moving the user from the cell edge to the cell center comprises: Determining, according to the received network signal, a parameter for determining a relative position between the terminal and the network signal transmitting end; When the value of the parameter is changed from being less than or equal to a preset second threshold to being greater than the second threshold, determining that the user moves from the cell edge to the cell center, and the second threshold is greater than Or equal to the first threshold. An uplink signal quality compensation device includes: Determining a unit, configured to determine that the user moves from the cell center to the cell edge according to the strength of the received network signal; The adjusting unit is configured to increase the uplink signal transmitting power to the sum of the maximum transmitting power when the user is in the cell center position and the preset adjustment value. The apparatus of claim 6, wherein the determining unit is configured to: Determining, according to the received network signal, a parameter for determining a relative position between the terminal and the network signal transmitting end; When the value of the parameter is greater than or equal to the preset first threshold value and becomes less than the first threshold value, it is determined that the user moves from the cell center to the cell edge. The apparatus according to claim 6, wherein the preset adjustment value is less than or equal to 2 dbm, or the sum of the maximum transmission power when the user is in the cell center position and the preset adjustment value is less than or equal to the allowed The maximum transmit power of the user. The apparatus according to claim 6, wherein the determining unit is further configured to: determine, according to the strength of the received network signal, that the user moves from the cell edge to the cell center; The adjusting unit is further configured to: restore the uplink signal transmission power to the maximum transmission power when the user is in the cell center position. The apparatus of claim 9, wherein the determining unit is configured to determine that the user moves from the cell edge to the cell center according to the strength of the received network signal in the following manner: Determining, according to the received network signal, a parameter for determining a relative position between the terminal and the network signal transmitting end; When the value of the parameter is changed from being less than or equal to a preset second threshold to being greater than the second threshold, determining that the user moves from the cell edge to the cell center, and the second threshold is greater than Or equal to the first threshold. A computer readable storage medium storing computer executable instructions that are implemented when the computer executable instructions are executed.

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