WO2016131307A1

WO2016131307A1 - Method and device for adjusting receipt signal of terminal lte antenna system

Info

Publication number: WO2016131307A1
Application number: PCT/CN2015/094015
Authority: WO
Inventors: 杨正淼
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-07-22
Filing date: 2015-11-06
Publication date: 2016-08-25
Also published as: CN106374220A; CN106374220B

Abstract

Disclosed in embodiments of the present invention are a method and device for adjusting a receipt signal of a terminal long term evolution (LTE) antenna system. The method comprises: obtaining a signal strength of a first receipt signal of a diversity antenna and a second receipt signal of a main antenna; when the first receipt signal strength exceeds the second receipt signal strength, and a signal strength difference thereof exceeds a first preset signal strength difference, attenuating the first receipt signal according to a preset attenuation power; when the attenuated signal strength difference of the first receipt signal and the second receipt signal is less than the first preset signal strength difference, reporting the attenuated signal strength of the first receipt signal and the second receipt signal to a network side.

Description

Receive signal adjustment method and device for terminal LTE antenna system

Technical field

Embodiments of the present invention relate to, but are not limited to, the field of communications technologies, and in particular, to a method and an apparatus for adjusting a received signal of a terminal LTE antenna system.

Background technique

At present, VoLTE (Voice Over LTE) based on IMS (IP Multimedia Subsystem) is a method for implementing voice services in an LTE (Long Term Evolution) network. Therefore, the related art LTE terminal generally has two receiving antennas, a main set antenna and a diversity antenna, and realizes information transmission through MIMO (Multiple Input Multiple-Output) technology. In VOLTE mode, the terminal will The signal of the two antennas is reported to the network side on the way, and the network side judges the network environment where the mobile phone is located according to the information reported by the terminal.

Therefore, the difference between the two will be minimized during the antenna design process of the terminal. However, due to factors such as terminal size, ID, structural reliability, and motherboard design, the performance of the two antennas cannot guarantee a sufficiently small difference. If the signal strength received by the diversity antenna is much larger than the signal strength received by the main set antenna, the performance of the main set antenna may be poor for the current cell and network state, and the main set antenna will generate a large amount of signal loss. The difference between the received signal of the antenna and the received signal of the diversity antenna is extremely unbalanced. However, the network side still considers that the terminal is in a better network environment or cell according to the information reported by the terminal, and does not perform cell handover or system handover, resulting in the network. The command issued by the side is unreasonable. In the case where the strength of the received signal of the main set antenna is weak, the cell cannot be switched or the system is switched in time, and the call is dropped or the call cannot be called frequently.

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.

Embodiments of the present invention provide a method and an apparatus for adjusting a received signal of a terminal LTE antenna system, By performing power attenuation on the received signal of the diversity antenna to reduce the intensity difference between the received signal of the diversity antenna and the received signal of the main set antenna, the relative balance of the antenna system of the terminal is improved, and the call fault is reduced.

An embodiment of the present invention provides a method for adjusting a received signal of a terminal LTE antenna system, including:

Obtaining a signal strength of the first received signal of the diversity antenna and the second received signal of the primary set antenna;

When the intensity of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference, the first received signal is attenuated according to a preset attenuation power. ;

The first received signal and the second received signal after attenuation after the attenuation of the signal strength difference between the first received signal and the second received signal is less than the first preset signal strength difference The signal strength is reported to the network side.

Optionally, before the step of acquiring the signal strength of the first received signal of the diversity antenna and the second received signal of the primary antenna, the method further includes:

Detecting whether the terminal enters a voice service mode based on the multimedia subsystem;

The step of acquiring the signal strength of the first received signal of the diversity antenna and the second received signal of the main set antenna is performed when detecting that the terminal enters a voice service mode based on the multimedia subsystem.

Optionally, wherein, when the strength of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference, according to a preset attenuation power pair The step of attenuating the first received signal includes:

When the intensity of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference, determining a range of signal strength differences to which the signal strength difference belongs;

The received signal of the diversity antenna is attenuated according to a preset attenuation power corresponding to the signal strength difference range.

Optionally, when the strength of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference, according to a preset attenuation power After the step of attenuating the first received signal, the method further includes:

The signal strength difference after attenuation is less than the first preset intensity difference and greater than the second preset strength When the degree is different, the signal strengths of the attenuated first received signal and the second received signal are reported to the network side.

Updating the signal strength difference deviation number when the attenuated signal strength difference is less than the second preset intensity difference or greater than the first preset intensity difference, and continuing to perform acquiring the first received signal of the diversity antenna and the main a step of collecting signal strength of a second received signal of the antenna;

When the number of the signal strength difference deviation is greater than the preset number of times, the signal strengths of the attenuated first received signal and the second received signal are reported to the network side.

In addition, an embodiment of the present invention further provides a receiving signal adjusting apparatus for a terminal LTE antenna system, including:

a signal acquisition module, configured to acquire a signal strength of the first received signal of the diversity antenna and the second received signal of the primary set antenna;

a power attenuation module, configured to: when the strength of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference, according to a preset attenuation power The first received signal is attenuated;

The first reporting module is configured to set the first received signal and the attenuation after the attenuation of the signal strength difference between the first received signal and the second received signal is less than a first preset signal strength difference The signal strength of the second received signal is reported to the network side.

Optionally, the receiving signal adjusting apparatus of the terminal LTE antenna system further includes:

a mode detecting module, configured to detect whether the terminal enters a voice service mode based on the multimedia subsystem;

The signal acquisition module is configured to acquire a signal strength of a first received signal of the diversity antenna and a second received signal of the primary set antenna when detecting that the terminal enters a voice service mode based on the multimedia subsystem.

Optionally, wherein the power attenuation module comprises:

The range determining unit is configured to determine, when the strength of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference, determining a signal to which the signal strength difference belongs Range of intensity differences;

The power attenuation unit is configured to attenuate the received signal of the diversity antenna according to a preset attenuation power corresponding to the signal strength difference range.

The second reporting module is configured to set the attenuated first received signal and the second when the attenuated signal strength difference is less than the first preset intensity difference and greater than a second preset intensity difference The signal strength of the received signal is reported to the network side.

The number update module is configured to update the signal strength difference deviation times when the attenuated signal strength difference is less than the second preset intensity difference or greater than the first preset intensity difference;

The signal acquisition module is further configured to acquire a first received signal and a primary set of the diversity antenna when the attenuated signal strength difference is less than the second preset intensity difference or greater than the first preset intensity difference The signal strength of the second received signal of the antenna;

The first reporting module is further configured to report the signal strengths of the attenuated first received signal and the second received signal to the network side when the signal strength difference deviation times is greater than a preset number of times.

The embodiment of the invention further provides a computer readable storage medium storing program instructions, which can be implemented when the program instructions are executed.

The method and device for adjusting a received signal of a terminal LTE antenna system according to an embodiment of the present invention, when the obtained first received signal has a stronger intensity than the second received signal and the signal strength difference is greater than a preset signal strength difference, the power is passed. The attenuation device performs power attenuation on the first received signal to reduce the signal strength difference between the second received signal and the first received signal, improves the relative balance of the received signal of the antenna system of the terminal, and further improves the call of the terminal in the voice service mode. quality.

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

BRIEF abstract

1 is a flowchart of a method for adjusting a received signal of a terminal LTE antenna system according to a first embodiment of the present invention;

2 is a schematic flowchart of a step of attenuating a first received signal in a method for adjusting a received signal of a terminal LTE antenna system according to a second embodiment of the present invention;

3 is a flowchart of a method for adjusting a received signal of a terminal LTE antenna system according to a third embodiment of the present invention;

4 is a flowchart of a method for adjusting a received signal of a terminal LTE antenna system according to a fourth embodiment of the present invention;

5 is a schematic diagram of functional blocks of a receiving signal adjusting apparatus of a terminal LTE antenna system according to a fifth embodiment of the present invention;

6 is a schematic diagram of a refinement function module of a power attenuation module in a received signal adjustment apparatus of a terminal LTE antenna system according to a sixth embodiment of the present invention;

7 is a schematic diagram of functional modules of a receiving signal adjusting apparatus of a terminal LTE antenna system according to a seventh embodiment of the present invention;

FIG. 8 is a schematic diagram of functional blocks of a receiving signal adjusting apparatus of a terminal LTE antenna system according to an eighth embodiment of the present invention.

Embodiments of the invention

It should be understood that the embodiments described herein are not intended to limit the invention.

Embodiment 1

This embodiment provides a method for adjusting a received signal of a terminal LTE antenna system.

Referring to FIG. 1, it is a flowchart of a first embodiment of a method for adjusting a received signal of a terminal LTE antenna system.

In the diversity antenna embodiment, the method for adjusting the received signal of the terminal LTE antenna system includes:

Step S10, acquiring signal strengths of the first received signal of the diversity antenna and the second received signal of the main set antenna;

LTE terminals generally have two receiving antennas, a main set antenna and a diversity antenna, and implement information transmission through MIMO technology. The main set antenna is used for transmitting and receiving radio frequency signals, and the diversity antenna is only used for signal reception, and the terminal passes such a Antenna settings improve communication quality. It should be noted that, in this embodiment, one main set antenna and one diversity antenna are respectively taken as an example. In other embodiments, multiple main set antennas and diversity antennas may be used, and the main set may be used. The received signal strengths of the antenna and the diversity antenna are respectively compared in pairs, and the method proposed in this embodiment is adopted for each comparison.

Step S20: When the intensity of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference, the first receiving is performed according to a preset attenuation power. The signal is attenuated;

Due to factors such as terminal size, ID, structural reliability, and motherboard design, the received signal strength of the terminal's main set antenna and diversity antenna may vary. Therefore, when the strength of the first received signal of the diversity antenna is obtained, RSRP1 is obtained. (Reference Signal Receiving Power) and the strength RSRP0 of the second received signal of the main set antenna, when the strength RSRP1 of the first received signal is greater than the strength RSRP0 of the second received signal, calculated by X=RSRP1-RSRP0 The signal strength of the first received signal and the second received signal is different by X for subsequent operation according to the magnitude of the signal strength difference X.

After obtaining the signal strength difference X between the first received signal and the second received signal according to the formula X=RSRP1-RSRP0, comparing it with the preset first signal strength difference X0, the preset signal strength difference X0 may be, for example, 2 -10dbm, this embodiment takes X0=3dbm as an example for description.

When X>3dbm, the first received signal is attenuated. In this embodiment, the power attenuation of the first received signal is implemented by the power attenuator, and the signal intensity difference between the first received signal and the second received signal is reduced by the power attenuator. For example, before the terminal leaves the factory, it is possible to obtain a range in which the signal intensity difference X of the first received signal and the second received signal may exist by performing a plurality of simulation experiments, and set a certain attenuation value according to the range of the signal strength difference X for the terminal. The attenuation device, or an attenuation device including a plurality of attenuators, performs power attenuation of the signal by switching the switch to an attenuator of different attenuation power according to the difference of the signal intensity difference X.

Optionally, when the signal strength difference is less than or equal to the preset signal strength difference, the signal strength of the second received signal and the first received signal may be considered to be different, even if the terminal is on the network side at this time. Reporting the diversity signal strength, and will not have a greater impact on the system switching instructions made by the network side, so no power attenuation is required, the switch of the attenuation device can be switched to the attenuator of 0dbm, and the acquisition of the first received signal can be continued. The step of intensifying with the second received signal.

Step S30, after the attenuated signal strength difference between the first received signal and the second received signal is less than a first preset signal strength difference, the first received signal and the second received receiver are attenuated. The signal strength of the signal is reported to the network side.

After the power attenuation is completed, after the attenuation of the signal strength difference between the first received signal and the second received signal is less than the first preset signal strength difference, the intensity of the first received signal after attenuation and the second The strength of the received signal is reported to the network side. The signal strength difference between the first received signal and the second received signal is reduced before the attenuation, and the relative balance between the first received signal and the second received signal is improved, which is helpful to the network side. According to the signal strength reported by the terminal, a relatively correct command is issued, and when it is judged that the current network environment is not good, the cell handover or the system handover is performed in time.

Optionally, before detecting the signal strength of the received signal, detecting whether the terminal enters a voice service mode based on the multimedia subsystem; and when detecting that the terminal enters a voice service mode based on the multimedia subsystem, performing the first acquiring the diversity antenna The step of receiving the signal and the signal strength of the second received signal of the main set antenna. It can be understood that the received signal of the acquisition antenna may be performed after detecting that the terminal enters the voice service mode based on the multimedia subsystem, or after receiving the reception signal adjustment instruction.

The method for adjusting the received signal of the terminal LTE antenna system proposed in this embodiment is: when the strength of the acquired first received signal is greater than the strength of the second received signal and the difference between the signal strengths is greater than the preset signal strength difference, The first received signal performs power attenuation to reduce the intensity difference between the second received signal and the first received signal, thereby improving the relative balance of the antenna system of the terminal, thereby improving the call quality of the terminal in the voice service mode.

Embodiment 2

Referring to Fig. 2, the present embodiment is proposed based on the first embodiment. In this embodiment, step S20 includes the following refinement steps:

Step S201, when the intensity of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference, determining a signal strength difference to which the signal strength difference belongs range;

Step S202: Attenuating the received signal of the diversity antenna according to a preset attenuation power corresponding to the signal strength difference range.

The embodiment provides a method for attenuating the first received signal by using the power attenuation device. In this embodiment, X0=3dbm is taken as an example to describe four different signal strength difference ranges according to the data measured by multiple tests. :3<X≤5, 5<X≤7, 7<X≤9 and X>9, when the signal strength difference is 3<X≤5, the power attenuation device switches to the 3db attenuator through the switch; when the signal strength is poor 5<X≤7, the power attenuation device switches to the 3db attenuator through the switch; when the signal strength difference is 7<X≤9, the power attenuation device switches to the 3db attenuator through the switch; when X>9, the power attenuation The device switches to a 9db attenuator through a switch. In other embodiments, an attenuator of other attenuation values may be set according to requirements, and different signal strength difference ranges may be divided, or an attenuation device having a fixed attenuation value may be directly set, and the first attenuation by the attenuation device may be directly performed. The received signal is reported to the network side, and the attenuation value of the attenuation device can set a reasonable attenuation value according to the experimental data.

The method for adjusting the received signal of the LTE antenna system of the present embodiment provides different attenuation powers according to different signal strength differences between the first received signal and the second received signal, thereby improving the first received signal and the second received signal. Relative balance between.

Embodiment 3

Referring to Fig. 3, the present embodiment is proposed based on the first embodiment. In this embodiment, after the step S20, the method for adjusting the received signal of the LTE antenna system of the terminal further includes:

Step S40, after the attenuated signal intensity difference is less than the first preset intensity difference and greater than the second preset intensity difference, the attenuated first received signal and the second received signal are compared. The strength is reported to the network side.

In this embodiment, the second preset intensity difference is optionally 0 dbm. In other embodiments, other values may be used, such as -3 dbm. Here, the second preset intensity difference is set because the first received signal is The second received signal is dynamically changing, and there will be some up and down floating, which may cause attenuation after attenuation. The signal strength difference of the two signals is greater than the second preset strength, or the attenuation of the first received signal is too low due to excessive attenuation power. If the signal strength difference of the two signals after the attenuation is less than the first preset intensity difference or greater than the second preset intensity, it indicates that the intensity of the first received signal after the attenuation is not much different from the original second received signal, even if reported The attenuated first received signal has little effect on the network side issuing instructions.

The method for adjusting the received signal of the terminal LTE antenna system proposed in this embodiment re-judges and attenuates the signal strength difference of the two signals after the attenuation, thereby further improving the relative balance between the first received signal and the second received signal of the terminal.

Embodiment 4

Referring to Fig. 4, the present embodiment is proposed based on the first embodiment. In this embodiment, after the step S40, the method for adjusting the received signal of the LTE antenna system of the terminal further includes:

Step S50: When the attenuated signal strength difference is less than the second preset intensity difference or greater than the first preset intensity difference, update the signal strength difference deviation number, and continue to perform the first reception of the acquisition diversity antenna. a signal and a signal strength of the second received signal of the main set antenna;

In step S60, when the number of signal strength difference deviations is greater than the preset number of times, the signal strengths of the attenuated first received signal and the second received signal are reported to the network side.

Because the first received signal and the second received signal are dynamically changed, there may be a certain up and down floating. Therefore, the signal strength difference between the attenuated first received signal and the original second received signal may appear to be less than 0 or greater than 3. The case indicates that the attenuation network at this time is not suitable. At this time, the signal strength difference deviation number is updated, and the state is not attenuated on the physical link, and then re-determined according to the re-acquired signal strength difference and according to the signal. The intensity difference is used for power attenuation, so that the relative balance of the first received signal and the second received signal of the terminal is improved by loop detection and real-time power control.

When the number of deviations of the signal strength difference reaches the number of deviations, the original physical link is not used for attenuation, and the signal strengths of the first received signal and the second received signal are reported to the network side to avoid the call waiting time of the user. Too long. In other embodiments, a certain duration may also be preset, when the signal of the first received signal of the acquired diversity antenna and the second received signal of the main set antenna is strong. The degree starts, when the preset duration is reached, the first received signal and the second received signal that have passed the last attenuation are reported to the network side.

The method for adjusting the received signal of the terminal LTE antenna system proposed in this embodiment re-judges and attenuates the signal strength difference of the two signals after the attenuation, thereby further improving the relative balance between the terminal main set antenna and the first received signal.

Embodiment 5

This embodiment provides a receiving signal adjusting apparatus for a terminal LTE antenna system.

Referring to FIG. 5, it is a functional block diagram of a diversity antenna embodiment of a received signal conditioning apparatus of a terminal LTE antenna system.

In this embodiment, the receiving signal adjusting apparatus of the terminal LTE antenna system includes:

The signal acquisition module 10 is configured to acquire a signal strength of the first received signal of the diversity antenna and the second received signal of the primary set antenna;

LTE terminals generally have two receiving antennas, a main set antenna and a diversity antenna, and implement information transmission through MIMO technology. The main set antenna is used for transmitting and receiving radio frequency signals, and the diversity antenna is only used for signal reception, and the terminal passes such a Antenna settings improve communication quality. It should be noted that, in this embodiment, one main set antenna and one diversity antenna are respectively taken as an example. In other embodiments, multiple main set antennas and diversity antennas may be used, and the main set may be used. The received signal strengths of the antenna and the diversity antenna are respectively compared in pairs. It can be understood that the signal acquisition module 10 acquires the received signal of the antenna may be performed after detecting that the terminal enters the voice service mode based on the multimedia subsystem, or after receiving the receive signal adjustment command.

The power attenuation module 20 is configured to: when the strength of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference, according to a preset attenuation power Decoding the first received signal;

Due to factors such as the size of the terminal, the ID, the structural reliability, and the design of the motherboard, the signal strengths received by the main antenna and the diversity antenna of the terminal may be different. Therefore, when the signal acquisition module 10 acquires the first reception of the diversity antenna. After the signal strength RSRP1 (Reference Signal Receiving Power) and the strength of the second received signal of the main set antenna RSRP0, When the strength RSRP1 of the first received signal is greater than the strength RSRP0 of the second received signal, the signal strength difference X of the first received signal and the second received signal is calculated by X=RSRP1-RSRP0 for subsequent signal strength difference X The size of the corresponding operation.

After obtaining the signal strength difference X between the first received signal and the second received signal according to the formula X=RSRP1-RSRP2, the power attenuation module 20 compares it with the preset first signal strength difference X0, and presets the signal strength difference X0. For example, it can be 2-10 dbm. In this embodiment, X0=3 dbm is taken as an example for description.

When X>3dbm, the first received signal is attenuated. In this embodiment, the power attenuation of the first received signal is implemented by the power attenuator, and the power attenuation module 20 reduces the first received signal and the second received signal by using the power attenuator. The signal strength is poor. For example, before the terminal leaves the factory, it is possible to obtain a range in which the signal intensity difference X of the first received signal and the second received signal may exist by performing a plurality of simulation experiments, and the range according to the signal intensity difference X is the terminal. An attenuation device that sets a certain attenuation value, or an attenuation device that includes a plurality of attenuators, and performs power attenuation of the signal by switching to an attenuator of different attenuation power according to the difference of the signal intensity difference X.

Optionally, when the signal strength difference is less than or equal to the preset signal strength difference, the signal strength of the second received signal and the first received signal may be considered to be different, even if the terminal reports the diversity signal to the network side. The intensity does not have a large influence on the system switching command made by the network side. Therefore, the power attenuation is not required, and the switch of the attenuation device can be switched to the attenuator of 0 dBm to continue acquiring the first received signal and the second received signal. strength.

The first reporting module 30 is configured to: after the attenuated signal strength difference between the first received signal and the second received signal is less than a first preset signal strength difference, the first received signal and the attenuation are The signal strength of the second received signal is reported to the network side.

After the power attenuation module 20 completes the power attenuation, when the signal strength difference between the first received signal and the second received signal is less than the first preset signal strength difference, the first reporting module 30 will attenuate the first receiving The strength of the signal and the strength of the second received signal are reported to the network side. The signal strength difference between the first received signal and the second received signal is reduced before the attenuation, and the relative balance between the first received signal and the second received signal is improved, which is helpful to the network side. The relatively correct command is sent according to the signal strength reported by the first reporting module 30. When it is determined that the current network environment is not good, the cell switching or system switching is performed in time.

The signal acquisition module 10 is configured to acquire a signal strength of a first received signal of the diversity antenna and a second received signal of the primary set antenna when detecting that the terminal enters a voice service mode based on the multimedia subsystem. It can be understood that the received signal of the acquisition antenna may be performed after detecting that the terminal enters the voice service mode based on the multimedia subsystem, or after receiving the reception signal adjustment instruction.

The receiving signal adjusting apparatus of the terminal LTE antenna system provided in this embodiment, when the obtained first received signal has an intensity greater than the strength of the second received signal and the signal strength difference is greater than the preset signal strength difference, the power attenuating device The first received signal performs power attenuation to reduce the intensity difference between the second received signal and the first received signal, thereby improving the relative balance of the antenna system of the terminal, thereby improving the call quality of the terminal in the voice service mode.

Embodiment 6

Referring to Fig. 6, the present embodiment is proposed based on the fifth embodiment. In this embodiment, the power attenuation module 20 includes the following units:

The range determining unit 210 is configured to determine that the signal strength difference belongs to when the strength of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference. Range of signal strength differences;

The power attenuation unit 220 is configured to attenuate the received signal of the diversity antenna according to a preset attenuation power corresponding to the signal strength difference range.

In this embodiment, X0=3dbm is taken as an example for description, and four different signal strength difference ranges are set according to the data measured by multiple tests: 3<X≤5, 5<X≤7, 7<X≤9, and X. >9, when the range judging unit 210 judges that the signal strength difference 3 < X ≤ 5, the power attenuating unit 220 controls the power attenuating device to switch to the attenuator of 3 db through the switch; when the range judging unit 210 judges that the signal strength difference is 5 < X ≤ 7 When the power attenuation unit 220 controls the power attenuation device to switch to the attenuator of 3db through the switch; when the range determination unit 210 determines that the signal strength difference is 7<X≤9, the power attenuation unit 220 controls The power attenuation device is switched to the 6db attenuator by the switch; when the range determination unit 210 determines that X>9, the power attenuation unit 220 controls the power attenuation device to switch to the 9db attenuator through the switch. In other embodiments, an attenuator of other attenuation values may be set according to requirements, and different signal strength difference ranges may be divided, or an attenuation device having a fixed attenuation value may be directly set, and the first attenuation by the attenuation device may be directly performed. The received signal is reported to the network side, and the attenuation value of the attenuation device can be set according to an experimentally reasonable attenuation value.

The receiving signal adjusting apparatus of the LTE antenna system of the present embodiment sets different attenuation powers according to different signal strength differences between the first received signal and the second received signal, thereby improving the first received signal and the second received signal. Relative balance between.

Example 7

Referring to Fig. 7, the present embodiment is proposed based on the fifth embodiment. In this embodiment, the received signal adjustment apparatus of the LTE antenna system of the terminal further includes:

The second reporting module 40 is configured to set the attenuated first received signal and the first when the attenuated signal strength difference is less than the first preset intensity difference and greater than a second preset intensity difference The signal strength of the received signal is reported to the network side.

In this embodiment, the second preset range is optionally 0-3dbm. In other embodiments, other range values, such as -3-3dbm, may be set, where the second preset intensity difference is set because The first received signal and the second received signal are dynamically changed, and there is a certain up and down floating, which may cause the signal strength difference of the two signals after the attenuation to be greater than the second preset strength, or because the attenuation power is too large. The first received signal strength after the attenuation is too low. If the difference between the signal strengths of the two signals after the attenuation is less than the first preset intensity difference or greater than the second preset intensity, then the difference between the attenuation of the first received signal and the original second received signal is not large, even if The second reporting module 40 reports that the first received signal after the attenuation has little effect on the network side issuing command. It can be understood that the first reporting module 30 and the second reporting module 40 can be the same module.

The receiving signal adjusting device of the terminal LTE antenna system proposed in this embodiment re-judges and attenuates the signal strength difference of the two signals after the attenuation, thereby further improving the relative balance between the first received signal and the second received signal of the terminal.

Example eight

Referring to Fig. 8, the present embodiment is proposed based on the fifth embodiment. In this embodiment, the received signal adjustment apparatus of the LTE antenna system of the terminal further includes:

The number update module 50 is configured to update the signal strength difference deviation times when the attenuated signal strength difference is less than the second preset intensity difference or greater than the first preset intensity difference;

The signal acquisition module 10 is further configured to: when the signal strength difference after the attenuation is less than the second preset intensity difference or greater than the first preset intensity difference, that is, the signal strength difference after the attenuation And not acquiring the second preset range, acquiring a signal strength of the first received signal of the diversity antenna and the second received signal of the main set antenna;

The second reporting module 40 is further configured to: when the signal strength difference deviation times is greater than a preset number of times (when the signal strength difference is less than the second preset intensity difference or greater than the first preset intensity difference) And reporting the signal strengths of the attenuated first received signal and the second received signal to the network side.

Because the first received signal and the second received signal are dynamically changed, there may be a certain up and down floating. Therefore, the signal strength difference between the attenuated first received signal and the original second received signal may appear to be less than 0 or greater than 3. In the case of the case, the attenuation network at this time is not suitable. At this time, the number update module 50 updates the signal strength difference deviation number, and restores the state that there is no attenuation on the physical link, and then re-based the re-acquired signal strength difference. The power attenuation is determined according to the signal strength difference, so that the relative balance of the terminal main set antenna and the first received signal is improved by loop detection and real-time power control.

When the number of deviations of the signal strength difference reaches the number of deviations, the original physical link is not returned to be attenuated, and the second reporting module 40 reports the first received signal and the second received signal to the network side to avoid the user's call. Waiting time is too long. In other embodiments, a certain duration may also be preset. When the signal strength of the first received signal of the acquired diversity antenna and the second received signal of the main set antenna is started, when the preset duration is reached, the second report is performed. The module 40 reports the first received signal and the second received signal that have undergone the last attenuation to the network side.

The receiving signal adjusting device of the terminal LTE antenna system proposed in this embodiment, the two after attenuation The signal strength difference of the road signal is judged again and attenuated, thereby further improving the relative balance between the terminal main set antenna and the first received signal.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be accomplished by a program that instructs the associated hardware, such as a read-only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware or in the form of a software function module. Embodiments of the invention are not limited to any specific form of combination of hardware and software.

Industrial applicability

Claims

A method for adjusting a received signal of a terminal LTE antenna system includes:

Obtaining a signal strength of the first received signal of the diversity antenna and the second received signal of the primary set antenna;

When the intensity of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference, the first received signal is attenuated according to a preset attenuation power. ;

The first received signal and the second received signal after attenuation after the attenuation of the signal strength difference between the first received signal and the second received signal is less than the first preset signal strength difference The signal strength is reported to the network side.
The method for adjusting a received signal of a terminal LTE antenna system according to claim 1, wherein before the step of acquiring the signal strength of the first received signal of the diversity antenna and the second received signal of the main set antenna, the method further includes:

Detecting whether the terminal enters a voice service mode based on the multimedia subsystem;

The step of acquiring the signal strength of the first received signal of the diversity antenna and the second received signal of the main set antenna is performed when detecting that the terminal enters a voice service mode based on the multimedia subsystem.
The method for adjusting a received signal of a terminal LTE antenna system according to claim 1, wherein when the strength of the first received signal is greater than the strength of the second received signal, and the difference in signal strength is greater than the first pre- When the signal strength difference is set, the step of attenuating the first received signal according to the preset attenuation power includes:

When the intensity of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference, determining a range of signal strength differences to which the signal strength difference belongs;

The received signal of the diversity antenna is attenuated according to a preset attenuation power corresponding to the signal strength difference range.
The method for adjusting a received signal of a terminal LTE antenna system according to claim 1, wherein when the strength of the first received signal is greater than the strength of the second received signal, and the difference in signal strength is greater than the first preset signal After the step of attenuating the first received signal according to a preset attenuation power, the method further includes:

Reporting the signal strengths of the attenuated first received signal and the second received signal to the network when the signal strength difference after the attenuation is less than the first preset intensity difference and greater than the second preset intensity difference side.
The method for adjusting a received signal of a terminal LTE antenna system according to claim 1, wherein when the strength of the first received signal is greater than the strength of the second received signal, and the difference in signal strength is greater than the first preset signal After the step of attenuating the first received signal according to a preset attenuation power, the method further includes:

Updating the signal strength difference deviation number when the attenuated signal strength difference is less than the second preset intensity difference or greater than the first preset intensity difference, and continuing to perform acquiring the first received signal of the diversity antenna and the main a step of collecting signal strength of a second received signal of the antenna;

When the number of the signal strength difference deviation is greater than the preset number of times, the signal strengths of the attenuated first received signal and the second received signal are reported to the network side.
A receiving signal adjusting device for a terminal LTE antenna system includes:

a signal acquisition module, configured to acquire a signal strength of the first received signal of the diversity antenna and the second received signal of the primary set antenna;

a power attenuation module, configured to: when the strength of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference, according to a preset attenuation power The first received signal is attenuated;

The first reporting module is configured to set the first received signal and the attenuation after the attenuation of the signal strength difference between the first received signal and the second received signal is less than a first preset signal strength difference The signal strength of the second received signal is reported to the network side.
The receiving signal adjusting device of the terminal LTE antenna system according to claim 6, wherein the receiving signal adjusting device of the terminal LTE antenna system further comprises:

a mode detecting module, configured to detect whether the terminal enters a voice service mode based on the multimedia subsystem;

The signal acquisition module is configured to acquire a signal strength of a first received signal of the diversity antenna and a second received signal of the primary set antenna when detecting that the terminal enters a voice service mode based on the multimedia subsystem.
The received signal adjustment apparatus of the terminal LTE antenna system according to claim 6, wherein the power attenuation module comprises:

The range determining unit is configured to determine, when the strength of the first received signal is greater than the strength of the second received signal, and the signal strength difference is greater than the first preset signal strength difference, determining a signal to which the signal strength difference belongs Range of intensity differences;

The power attenuation unit is configured to attenuate the received signal of the diversity antenna according to a preset attenuation power corresponding to the signal strength difference range.
The receiving signal adjusting device of the terminal LTE antenna system according to claim 6, wherein the receiving signal adjusting device of the terminal LTE antenna system further comprises:

The second reporting module is configured to set the attenuated first received signal and the second when the attenuated signal strength difference is less than the first preset intensity difference and greater than a second preset intensity difference The signal strength of the received signal is reported to the network side.
The receiving signal adjusting device of the terminal LTE antenna system according to claim 6, wherein the receiving signal adjusting device of the terminal LTE antenna system further comprises:

The number update module is configured to update the signal strength difference deviation times when the attenuated signal strength difference is less than the second preset intensity difference or greater than the first preset intensity difference;

The signal acquisition module is further configured to acquire a first received signal and a primary set of the diversity antenna when the attenuated signal strength difference is less than the second preset intensity difference or greater than the first preset intensity difference The signal strength of the second received signal of the antenna;

The first reporting module is further configured to report the signal strengths of the attenuated first received signal and the second received signal to the network side when the signal strength difference deviation times is greater than a preset number of times.
A computer readable storage medium storing program instructions that, when executed, can implement the method of any of claims 1-5.