CN110505684A

CN110505684A - Localization method and mobile terminal

Info

Publication number: CN110505684A
Application number: CN201910660806.6A
Authority: CN
Inventors: 丁志龙
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2019-11-26

Abstract

The embodiment of the present invention provides a kind of localization method and mobile terminal, is related to field of communication technology, to solve the problems, such as to influence the positioning result of mobile terminal since positioning frequency range is disturbed.This method comprises: determine target frequency point, target frequency point be the first signal and the second signal intermodulation after signal frequency point, the first signal and the second signal be the mobile terminal by double-strand connect in different linking transmit signal；It in the case where target frequency point is fallen in the first frequency range, is positioned using the second frequency range, the positioning frequency range that the first frequency range and the second frequency range are supported for mobile terminal, and the first frequency range is the frequency range interfered by target frequency point, target frequency point is fallen in outside the second frequency range.The positioning frequency range that this method uses when can be to avoid mobile terminal location is disturbed, to avoid the positioning result of the interference effect mobile terminal, and then the accuracy of mobile terminal location can be improved.

Description

Positioning method and mobile terminal

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a positioning method and a mobile terminal.

Background

With the development of terminal technology, the functions of mobile terminals are more and more powerful. For example, the mobile terminal may support simultaneous access to networks of multiple systems.

Taking an example that a mobile Terminal can support simultaneous access to a Long Term Evolution (LTE) network and a New generation wireless (NR) network, at present, when the mobile Terminal simultaneously accesses the LTE network and the NR network, assuming that a working frequency band of the mobile Terminal in the LTE network is frequency band 1 and a working frequency band in the NR network is frequency band 2, if the mobile Terminal is positioned in a dual-frequency band positioning manner (i.e., the mobile Terminal is positioned in two frequency bands), the frequency band after the frequency band 1 and the frequency band 2 are inter-modulated may fall into a certain positioning frequency band (i.e., the frequency band adopted when the mobile Terminal is positioned), so that the inter-modulated frequency band causes interference to the positioning frequency band, and the positioning result of the mobile Terminal is affected.

Disclosure of Invention

The embodiment of the invention provides a positioning method and a mobile terminal, and aims to solve the problem that a positioning result of the mobile terminal is influenced due to interference of a positioning frequency band.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a positioning method, which may be applied to a mobile terminal, where the method may include: determining a target frequency point, wherein the target frequency point is a frequency point of a signal after intermodulation of a first signal and a second signal, and the first signal and the second signal are signals transmitted by a mobile terminal through different links in a double link; and under the condition that the target frequency point falls in the first frequency band, adopting a second frequency band for positioning, wherein the first frequency band and the second frequency band are positioning frequency bands supported by the mobile terminal, the first frequency band is a frequency band interfered by the target frequency point, and the target frequency point falls outside the second frequency band.

In a second aspect, an embodiment of the present invention provides a mobile terminal, including: the device comprises a determining module and a positioning module. The determining module is used for determining a target frequency point, wherein the target frequency point is a frequency point of a signal after intermodulation of a first signal and a second signal, and the first signal and the second signal are signals transmitted by the mobile terminal through different links in the double links; and the positioning module is used for positioning by adopting a second frequency band under the condition that the target frequency point determined by the determining module is in the first frequency band, the first frequency band and the second frequency band are positioning frequency bands supported by the mobile terminal, the first frequency band is a frequency band interfered by the target frequency point, and the target frequency point is out of the second frequency band.

In a third aspect, an embodiment of the present invention provides a mobile terminal, including a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps of the positioning method according to the first aspect.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the positioning method of the first aspect.

In the embodiment of the present invention, the mobile terminal may determine a target frequency point (that is, a frequency point of a signal after intermodulation of a first signal and a second signal, where the first signal and the second signal are signals transmitted by the mobile terminal through different links in a dual link), and may adopt a second frequency band for positioning when the target frequency point falls within a first frequency band; the first frequency band and the second frequency band are positioning frequency bands supported by the mobile terminal, the first frequency band is a frequency band interfered by the target frequency point, and the target frequency point falls outside the second frequency band. By the scheme, when the mobile terminal supporting multi-band positioning works in a double-link state, if the frequency point of the signal after intermodulation, which is transmitted by the mobile terminal through different links in the double-link, falls into a certain frequency band in the multi-band, the mobile terminal can adopt other frequency bands except the frequency band to position in the multi-band. That is, when a certain frequency band in multiple frequency bands adopted by the mobile terminal is interfered, the mobile terminal can adopt other frequency bands in the multiple frequency bands for positioning, so that the positioning frequency band adopted by the mobile terminal during positioning can be prevented from being interfered, the positioning result of the mobile terminal is prevented from being influenced by the interference, and the positioning accuracy of the mobile terminal can be improved.

Drawings

Fig. 1 is a schematic diagram of a positioning method according to an embodiment of the present invention;

fig. 2 is a second schematic diagram of a positioning method according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a hardware circuit applied to the positioning method according to the embodiment of the present invention;

fig. 4 is a third schematic diagram of a positioning method according to an embodiment of the present invention;

FIG. 5 is a fourth schematic view illustrating a positioning method according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;

fig. 7 is a second schematic structural diagram of a mobile terminal according to an embodiment of the present invention;

fig. 8 is a third schematic structural diagram of a mobile terminal according to an embodiment of the present invention;

fig. 9 is a hardware schematic diagram of a mobile terminal according to an embodiment of the present invention.

Detailed Description

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

The term "and/or" herein is an association relationship describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The symbol "/" herein denotes a relationship in which the associated object is or, for example, a/B denotes a or B.

The terms "first" and "second," and the like, in the description and in the claims of the present invention are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first signal and the second signal, etc. are used to distinguish different signals, rather than to describe a particular order of the signals.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the description of the embodiments of the present invention, unless otherwise specified, "a plurality" means two or more, for example, a plurality of intermodulation algorithms means two or more intermodulation algorithms or the like.

The following first explains some of the nouns or terms referred to in the claims and the specification of the present invention.

Multi-band positioning: when the mobile terminal is positioned, a plurality of frequency bands are adopted to obtain positioning signals of a satellite so as to improve the accuracy of the positioning result of the mobile terminal. Taking dual-band positioning as an example, dual-band positioning means that a mobile terminal can adopt two frequency bands for positioning at the same time. Specifically, when the mobile terminal performs dual-band positioning or multi-band positioning, the mobile terminal may be implemented by using a Global Navigation Satellite System (GNSS). The GNSS may include a Global Positioning System (GPS), a bei dou navigation Satellite System (BDS), a GLONASS Satellite navigation System (GLONASS), and a Galileo Satellite navigation System (Galileo).

Taking the mobile terminal adopting GPS positioning as an example, the GPS can ensure that at any time, any point on the earth can simultaneously observe at least four satellites, that is, the mobile terminal can receive positioning signals (including satellite ephemeris) sent by the at least four satellites, and the mobile terminal can calculate the spatial coordinates of the position where the mobile terminal is located according to the received positioning signals and the time that each positioning signal passes from the satellite to the mobile terminal, thereby realizing positioning of the mobile terminal.

Positioning a frequency band: the frequency band is a frequency band adopted by the mobile terminal during positioning, namely the frequency band adopted by the mobile terminal when the mobile terminal obtains a positioning signal from a satellite, namely the working frequency band of the mobile terminal during positioning. For example, taking a Global Positioning System (GPS), which is abbreviated as GPS for short, the positioning frequency bands supported by the GPS include five frequency bands, which are: l1 band: (1575.42 ± 1.023) MHz, L2 band: (1227.60 ± 1.023) MHz, L3 band: (1381.05 ± 1.023) MHz, L4 band: (1841.40 ± 1.023MHz) and L5 band: (1176.450. + -. 1.023) MHz.

Intermodulation: when more than two signals with different frequencies act on the same nonlinear circuit, the signals are mutually modulated to generate signals with new frequencies and then are output. If the frequency of the signal falls within the operating frequency band (e.g., the positioning frequency band in the embodiment of the present invention) of the receiver (e.g., the positioning module in the mobile terminal in the embodiment of the present invention), interference may be caused to the receiver, and in general, such interference may be referred to as intermodulation interference.

Double linking: it means that the mobile terminal can establish a link with two networks (specifically, the mobile terminal may be a network device, and the network device may be a base station) at the same time. For example, the mobile terminal simultaneously establishes a link with a first base station and a second base station, where the first base station and the second base station may be two base stations in a network of the same system, or two base stations in networks of different systems.

In the embodiment of the invention, the networks with the same standard can be networks with the same network standard. The networks with different modes can be networks with different network modes. Illustratively, a Long Term Evolution (LTE) network and a New generation radio (NR) network are two networks with different network standards, that is, the LTE network and the NR network are different networks.

The establishment of the link between the mobile terminal and the network and the establishment of the link between the mobile terminal and the network device described in the embodiments of the present invention may be understood as equivalent meanings, which refer to the establishment of the link between the mobile terminal and the network device, and for convenience of description, the two may be interchanged sometimes.

The embodiment of the invention provides a positioning method and a mobile terminal, wherein the mobile terminal can determine a target frequency point (namely the frequency point of a signal after intermodulation of a first signal and a second signal, wherein the first signal and the second signal are signals transmitted by the mobile terminal through different links in a double link), and can adopt a second frequency band for positioning under the condition that the target frequency point falls in a first frequency band; the first frequency band and the second frequency band are positioning frequency bands supported by the mobile terminal, the first frequency band is a frequency band interfered by the target frequency point, and the target frequency point falls outside the second frequency band. By the scheme, when the mobile terminal supporting multi-band positioning works in a double-link state, if the frequency point of the signal after intermodulation, which is transmitted by the mobile terminal through different links in the double-link, falls into a certain frequency band in the multi-band, the mobile terminal can adopt other frequency bands except the frequency band to position in the multi-band. That is, when a certain frequency band in multiple frequency bands adopted by the mobile terminal is interfered, the mobile terminal can adopt other frequency bands in the multiple frequency bands for positioning, so that the positioning frequency band adopted by the mobile terminal during positioning can be prevented from being interfered, the positioning result of the mobile terminal is prevented from being influenced by the interference, and the positioning accuracy of the mobile terminal can be improved.

The mobile terminal in the embodiment of the present invention may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, a Personal Digital Assistant (PDA), or the like, and the non-mobile terminal may be a Personal Computer (PC), a Television (TV), a teller machine, a self-service machine, or the like, which is not limited in the embodiment of the present invention.

The execution main body of the positioning method provided by the embodiment of the present invention may be the mobile terminal, or may also be a functional module and/or a functional entity capable of implementing the positioning method in the mobile terminal, which may be specifically determined according to actual use requirements, and the embodiment of the present invention is not limited. The following takes a mobile terminal as an example to exemplarily explain a positioning method provided by the embodiment of the present invention.

The positioning method provided by the embodiment of the invention can be executed under the condition that the mobile terminal is in a double-link state. The mobile terminal in the dual link state means that two links are established between the mobile terminal and a network (which may be the same network or different networks). Assuming that the two links are a first link and a second link, respectively, and a first signal is transmitted on the first link and a second signal is transmitted on the second link, intermodulation signals may be generated between the first signal and the second signal. In practical implementations, since there are many intermodulation modes when two signals are intermodulation, there are many intermodulation signals generated after intermodulation between the first signal and the second signal.

Specifically, the positioning method provided by the embodiment of the present invention can be executed in the following three scenarios (i.e., scenario one, scenario two, and scenario three). The three scenarios are described below as examples.

In a first scenario, the mobile terminal is in a double-link state, the mobile terminal does not start to be positioned, and the frequency points of the first signal and the second signal are unchanged.

In scenario one, when the mobile terminal is in the dual link state, before the mobile terminal starts positioning, the mobile terminal may first execute the positioning method provided by the embodiment of the present invention. Specifically, the mobile terminal may determine the frequency points of the intermodulation signals, and determine whether at least one of the frequency points of the intermodulation signals falls within a certain positioning frequency band supported by the mobile terminal. When at least one of the frequency points of the intermodulation signals falls within a certain positioning frequency band (for example, a first frequency band) supported by the mobile terminal, it is indicated that the intermodulation signal corresponding to the at least one frequency point causes interference to the certain positioning frequency band supported by the mobile terminal, and at this time, the mobile terminal can adopt other positioning frequency bands (for example, a second frequency band, the frequency points of the intermodulation signals all fall outside the second frequency band) supported by the mobile terminal for positioning.

And in a second scenario, the mobile terminal is changed from the state of not being in the dual link state to the state of being in the dual link state, and the mobile terminal is adopting all frequency band positioning (for example, dual-band positioning or multi-band positioning) supported by the mobile terminal, and the frequency points of the first signal and the second signal are not changed.

In the second scenario, in the process that the mobile terminal locates by using all frequency bands supported by the mobile terminal, the mobile terminal may monitor the link state of the mobile terminal in real time, and when the mobile terminal monitors that the mobile terminal changes from the non-dual link state to the dual link state, the mobile terminal may execute the locating method provided by the embodiment of the present invention. Specifically, the mobile terminal may determine the frequency points of the intermodulation signals, and determine whether at least one of the frequency points of the intermodulation signals falls within a certain positioning frequency band supported by the mobile terminal. When at least one of the frequency points of the intermodulation signals falls within a certain positioning frequency band (for example, a first frequency band) supported by the mobile terminal, it indicates that the intermodulation signal corresponding to the at least one frequency point can cause interference to the certain positioning frequency band supported by the mobile terminal, and at this time, the mobile terminal can continue to adopt other positioning frequency bands (for example, a second frequency band, the frequency points of the intermodulation signals all fall outside the second frequency band) supported by the mobile terminal for positioning.

Optionally, in the second scenario, the mobile terminal may monitor whether the link state of the mobile terminal changes in real time according to the interaction information between the mobile terminal and the network device (for example, a signal received from the network device, where the signal may include a network identifier), that is, whether the mobile terminal changes from the non-dual link state to the dual link state.

And in a third scenario, the mobile terminal is in a dual-link state, and the mobile terminal is positioning in all frequency bands supported by the mobile terminal (for example, dual-band positioning or multi-band positioning), and the frequency points of the first signal and the second signal are changed.

In the third scenario, in the process that the mobile terminal locates by using all frequency bands supported by the mobile terminal, the mobile terminal may monitor whether the frequency point of the first signal and the frequency point of the second signal change in real time. When the mobile terminal monitors that at least one of the frequency points of the first signal and the second signal changes, the mobile terminal can execute the positioning method provided by the embodiment of the invention. Specifically, the mobile terminal may determine the frequency points of the intermodulation signals, and determine whether at least one of the frequency points of the intermodulation signals falls within a certain positioning frequency band supported by the mobile terminal. When at least one of the frequency points of the intermodulation signals falls within a certain positioning frequency band (for example, a first frequency band) supported by the mobile terminal, it indicates that the intermodulation signal corresponding to the at least one frequency point can cause interference to the certain positioning frequency band supported by the mobile terminal, and at this time, the mobile terminal can continue to adopt other positioning frequency bands (for example, a second frequency band, the frequency points of the intermodulation signals all fall outside the second frequency band) supported by the mobile terminal for positioning.

Optionally, in the scenario one, the scenario two, and the scenario three in the embodiment of the present invention, if the mobile terminal determines that the frequency points of the intermodulation signals all fall outside any one of the positioning frequency bands supported by the mobile terminal, it indicates that the intermodulation signals do not cause interference to the positioning frequency band supported by the mobile terminal, and at this time, the mobile terminal may adopt all frequency band positioning (for example, dual-band positioning or multi-band positioning) supported by the mobile terminal.

The following describes an exemplary positioning method provided by an embodiment of the present invention with reference to the drawings.

As shown in fig. 1, an embodiment of the present invention provides a positioning method, which may be performed when a mobile terminal is in a dual link state, and the method may include S201-S202 described below.

S201, the mobile terminal determines a target frequency point.

The target frequency point may be a frequency point of a signal (possibly a plurality of intermodulation signals) after intermodulation of the first signal and the second signal. That is, the target frequency point may be the frequency points of the intermodulation signals. It can be understood that the target frequency point may be a plurality of frequency points. When the mobile terminal actually executes the positioning method provided by the embodiment of the invention, the mobile terminal can respectively judge whether each frequency point in the plurality of frequency points falls into the positioning frequency band supported by the mobile terminal. Of course, in practical implementation, the intermodulation signal of the first signal and the second signal may also be an intermodulation signal. The method can be determined according to actual use requirements, and the embodiment of the invention is not limited.

In the embodiments of the present invention, in order to clearly describe a specific implementation manner, a target frequency point is taken as an example for description, that is, in the description herein, the target frequency point is taken as a whole for description, and the number of frequency points in the target frequency point is not limited.

Optionally, in the embodiment of the present invention, the mobile terminal may calculate the target frequency point by using an intermodulation algorithm. The intermodulation algorithms may include a second-order intermodulation algorithm (i.e., an intermodulation algorithm corresponding to a second-order intermodulation mode), a third-order intermodulation algorithm (i.e., an intermodulation algorithm corresponding to a third-order intermodulation mode), a fourth-order intermodulation algorithm (i.e., an intermodulation algorithm corresponding to a fourth-order intermodulation mode), a fifth-order intermodulation algorithm (i.e., an intermodulation algorithm corresponding to a fifth-order intermodulation mode), a sixth-order intermodulation algorithm (i.e., an intermodulation algorithm corresponding to a sixth-order intermodulation mode), a seventh-order intermodulation algorithm (i.e., an intermodulation algorithm corresponding to a seventh-order intermodulation mode), an eighth-order intermodulation algorithm (i.e., an intermodulation algorithm corresponding to an eighth-order intermodulation mode), a ninth-order intermodulation algorithm (i.e.

In the embodiment of the present invention, the intermodulation algorithm of each order may be expressed by a formula, that is, may be specifically expressed as: F-AF 1 ± BF 2. Wherein, F represents a frequency point of a signal after intermodulation of two intermodulation signals, F1 represents a frequency point of one of the two signals, F2 represents a frequency point of the other of the two signals, a and B are both integers greater than 0, and "a + B" may represent an order of an intermodulation algorithm. For example, a + B-2 may indicate that the order of the intermodulation algorithm is second order, a + B-3 may indicate that the order of the intermodulation algorithm is third order, a + B-4 may indicate that the order of the intermodulation algorithm is fourth order, and so on.

For example, in the embodiment of the present invention, if the frequency point of the first signal is f1, the frequency point of the second signal is f2, and the frequency point of the signal after the intermodulation of the first signal and the second signal is f3, then f3 may be calculated by the above intermodulation algorithm. That is, f3 can be calculated by the above formula, such as f3 ═ Af1 ± Bf 2.

For example, if the first signal and the second signal are inter-modulated by using a second-order inter-modulation algorithm, that is, a + B is 2, the frequency point f3 of the inter-modulated signal of the first signal and the second signal may be: f3 ═ f1 ± f 2. If the first signal and the second signal are inter-modulated by a third-order inter-modulation algorithm, that is, a + B is 3, frequency point f3 of the inter-modulated signal of the first signal and the second signal may be: f3 ═ f1 ± 2f2, and f3 ═ 2f1 ± f 2. If the first signal and the second signal are inter-modulated by using a fourth-order inter-modulation algorithm, that is, a + B is 4, frequency point f3 of the inter-modulated signal of the first signal and the second signal may be: f 3-3 f1 + -f 2, f 3-f 1 + -3 f 2.

In this embodiment of the present invention, the first signal and the second signal may be signals transmitted by the mobile terminal through different links in the dual link. Illustratively, the first signal may be a signal transmitted by the mobile terminal through one of the dual links, and the second signal may be a signal transmitted by the mobile terminal through the other of the dual links.

In this embodiment of the present invention, the dual link of the mobile terminal may be a first link and a second link, that is, the first signal may be a signal transmitted by the mobile terminal through the first link of the dual link, and the second signal may be a signal transmitted by the mobile terminal through the second link of the dual link.

Optionally, in the embodiment of the present invention, the dual link may be a link established between the mobile terminal and two network devices in the same-system network, or may also be a link established between the mobile terminal and two network devices in networks of different systems, which may be determined specifically according to actual use requirements, and the embodiment of the present invention is not limited.

For example, the network of the same standard may be an NR network or an LTE network. In this case, the link establishment between the mobile terminal and the two network devices in the same standard network may be: the mobile terminal establishes a link with two network devices in the NR network, or the mobile terminal establishes a link with two network devices in the LTE network.

As another example, the networks of different systems may be an NR network and an LTE network. In this case, the link between the mobile terminal and the two network devices in the networks of different systems may be: the mobile terminal establishes a link with one network device in the NR network and the mobile terminal establishes a link with one network device in the LTE network.

It will be appreciated that when the dual link is a link established between a mobile terminal and two network devices in an NR network, the first link and the second link are links established between the mobile terminal and two network devices in the NR network, respectively. When the dual link is a link established between the mobile terminal and two network devices in the LTE network, the first link and the second link are respectively established between the mobile terminal and two network devices in the LTE network. When the dual link is a link established between the mobile terminal and two network devices in the NR network and the LTE network, the first link may be a link established between the mobile terminal and one network device in the NR network, and the second link may be a link established between the mobile terminal and one network device in the LTE network; alternatively, the first link may be a link established between the mobile terminal and one network device in the LTE network, and the second link may be a link established between the mobile terminal and one network device in the NR network.

Optionally, in the embodiment of the present invention, with reference to fig. 1, the step S201 may be specifically implemented by the following steps S201a and S201 b.

S201a, the mobile terminal determines a first frequency point and a second frequency point.

S201b, the mobile terminal determines the target frequency point according to the first frequency point and the second frequency point.

In this embodiment of the present invention, the first frequency point may be a frequency point of the first signal, and the second frequency point may be a frequency point of the second signal. Specifically, the mobile terminal may calculate the target frequency point by using an intermodulation algorithm according to the first frequency point and the second frequency point. For the description of the mobile terminal calculating the target frequency point, reference may be made to the related description in the above method embodiment, and details are not repeated here.

For example, assuming that the mobile terminal adopts GPS positioning, and the mobile terminal simultaneously establishes a link with the NR network and the LTE network (i.e., the mobile terminal is in a dual link state), and the link established by the mobile terminal with the NR network is a first link and the link established with the LTE network is a second link, and the mobile terminal transmits a first signal through the first link and transmits a second signal through the second link, where a frequency point of the first signal is denoted as NR Tx and a frequency point of the second signal is denoted as LTE Tx, as shown in table 1 below, after the first signal and the second signal are inter-modulated by a plurality of inter-modulation algorithms, since frequency points of five inter-modulated signals fall within a positioning frequency band (i.e., L1 frequency band in table 1 below) supported by the mobile terminal, the frequency points of the five signals are the target frequency point.

TABLE 1

EN-DC COMBINATION	Interference mechanism	Interfered frequency band
			DC_1A-n78A	GPS＝NR Tx–LTE Tx	GPS L1
DC_3A-n78A	GPS＝NR Tx–LTE Tx	GPS L1
			DC_8A-n78A	GPS＝NR Tx-2*LTE Tx	GPS L1
DC_39A-n41A	GPS＝2*LTE Tx–NR Tx	GPS L1
			DC_3A-n78A	GPS＝3*LTE Tx–NR Tx	GPS L1

It should be noted that, in table 1, the term "EN-DC" is used to indicate that the mobile terminal establishes a link with the NR network and the LTE network simultaneously (i.e., the mobile terminal is in a dual-link state based on the NR network and the LTE network). Where EN (e-utra new-radio) denotes an LTE network and an NR network, and DC denotes dual connectivity.

The term "interference mechanism" is used to indicate that the frequency band of the signal after intermodulation of the first signal and the second signal interferes with a certain positioning frequency band supported by the mobile terminal. In general, the frequency point NR Tx of the first signal and the frequency point LTETx of the second signal may be used, and the frequency points of the signals after intermodulation of the first signal and the second signal may be calculated by an intermodulation algorithm. And if the calculated frequency point falls within a certain positioning frequency band supported by the mobile terminal, it indicates that the signal after the intermodulation of the first signal and the second signal will generate interference on the certain positioning frequency band.

The "interfered frequency band" is used to indicate that the frequency point of the signal obtained by intermodulation of the first signal and the second signal falls within a certain positioning frequency band supported by the mobile terminal, that is, a positioning frequency band interfered by the signal obtained by intermodulation of the first signal and the second signal (for example, the GPS L1 frequency band in table 1).

Further, as can be seen from table 1, different EN-DC combinations (e.g., DC _1A-n78A and DC _3A-n78A in table 1) may correspond to the same intermodulation algorithm, and the same EN-DC combination (e.g., DC _3A-n78A in table 1) may also correspond to different intermodulation algorithms. Table 1 is only an exemplary list, which may be determined according to actual usage requirements, and the embodiments of the present invention are not limited.

Optionally, in this embodiment of the present invention, the first frequency point may be any frequency point in the frequency band of the first signal. For example, the first frequency point may be a central frequency point of the first signal, or may also be other frequency points of the first signal except the central frequency point, which may be determined specifically according to actual use requirements, and the embodiment of the present invention is not limited.

Optionally, in this embodiment of the present invention, the second frequency point may be any frequency point in the frequency band of the second signal. For example, the second frequency point may be a central frequency point of the second signal, or may be other frequency points of the second signal except the central frequency point, which may be determined specifically according to actual use requirements, and the embodiment of the present invention is not limited.

Optionally, in this embodiment of the present invention, when the first frequency point is a central frequency point of the first signal, and the second frequency point is a central frequency point of the second signal, the step S201a may be specifically implemented by the following steps S201a1 and S201a 2.

S201a1, the mobile terminal determines a third frequency band and a fourth frequency band.

S201a2, the mobile terminal determines the central frequency point of the third frequency band as the first frequency point, and determines the central frequency point of the fourth frequency band as the second frequency point.

The third frequency band may be a frequency band of the first signal (i.e., a signal transmitted by the mobile terminal through the first link of the dual link). The fourth frequency band may be a frequency band of the second signal (i.e., a signal transmitted by the mobile terminal through the second link of the dual link).

Optionally, in this embodiment of the present invention, the mobile terminal may obtain a first signal transmitted by the mobile terminal through a first link in the dual link, and determine the third frequency band according to the first signal. Moreover, the mobile terminal may acquire a second signal transmitted by the mobile terminal through a second link of the dual link, and determine the fourth frequency band according to the second signal. Then, the mobile terminal may obtain a center frequency point of the third frequency band, so as to determine the center frequency point of the third frequency band as the first frequency point, and obtain a center frequency point of the fourth frequency band, so as to determine the center frequency point of the fourth frequency band as the second frequency point.

S202, under the condition that the target frequency point falls in the first frequency band, the mobile terminal adopts the second frequency band for positioning.

The first frequency band and the second frequency band may be positioning frequency bands supported by the mobile terminal, and the first frequency band may be a frequency band subjected to the interference of the target frequency point. In the embodiment of the present invention, the target frequency point falls outside the second frequency band, that is, the second frequency band may be a frequency band not interfered by the target frequency point.

For the description of the positioning frequency band, reference is specifically made to the related description of the noun explanation part for the positioning frequency band in the foregoing embodiment, and details are not repeated here.

Optionally, in the embodiment of the present invention, the mobile terminal positioning using the second frequency band means: and the mobile terminal acquires the positioning signal from the satellite by adopting the second frequency band.

In the embodiment of the present invention, taking the mobile terminal using GPS positioning as an example, in five positioning frequency bands (i.e., an L1 frequency band, an L2 frequency band, an L3 frequency band, an L4 frequency band, and an L5 frequency band) supported by the GPS, a center frequency point of an L1 frequency band is 1575.42MHz, a center frequency point of an L5 frequency band is 1176.450MHz, that is, a frequency difference between the center frequency point of the L1 frequency band and the center frequency point of the L5 frequency band is 400 MHz; then, if the frequency point of the signal (i.e. the intermodulation signal) after intermodulation of the two signals transmitted by the mobile terminal through the different links in the dual link falls into the L1 frequency band (or L5 frequency band) of the mobile terminal, because the frequency difference between the L1 frequency band and the L5 frequency band is large, the frequency point of the intermodulation signal cannot fall into the L5 frequency band (or L1 frequency band) at the same time, that is, when the L1 frequency band (or L5 frequency band) of the mobile terminal is interfered by the signal after intermodulation of the signals transmitted by the mobile terminal through the different links in the dual link, the terminal can adopt the L5 frequency band (or L1 frequency band) for positioning, so as to avoid the positioning frequency band adopted during positioning of the mobile terminal from being interfered, thereby avoiding the interference from affecting the positioning result of the mobile terminal, and further improving the positioning accuracy of the mobile terminal.

It should be noted that the above-mentioned L1 frequency band, L5 frequency band, and the frequency difference therebetween are only exemplary lists, and in practical implementation, as long as the frequency difference between any two positioning frequency bands supported by the mobile terminal is large, when a certain positioning frequency band of the two positioning frequency bands is interfered, the mobile terminal can be positioned by using the positioning method provided in this embodiment. In the embodiment of the present invention, the larger frequency difference between any two positioning frequency bands may be specifically determined according to actual usage requirements, that is, whether the frequency difference between any two positioning frequency bands is sufficient to trigger the mobile terminal to execute the positioning method provided by the embodiment of the present invention may be specifically determined according to the actual usage requirements, which is not limited in the embodiment of the present invention.

Optionally, in the embodiment of the present invention, the mobile terminal establishes a link with two networks of the NR network and the LTE network, and the mobile terminal adopts GPS positioning. The first signal may be a signal in a Long Term Evolution (LTE) network and the second signal may be a signal in a new generation radio (NR) network; the first frequency band may be an L1 frequency band, and the second frequency band may be an L5 frequency band, or the first frequency band may be an L5 frequency band, and the second frequency band may be an L1 frequency band.

Alternatively, the first signal may be a signal in a new generation radio (NR) network, and the second signal may be a signal in a Long Term Evolution (LTE) network; the first frequency band may be an L1 frequency band, and the second frequency band may be an L5 frequency band; alternatively, the first frequency band may be an L5 frequency band, and the second frequency band may be an L1 frequency band.

In the positioning method provided in the embodiment of the present invention, when the mobile terminal supporting dual-band positioning (also referred to as multi-band positioning) operates in a dual-link state, if a frequency point of a signal intermodulation transmitted by the mobile terminal through different links in the dual-link falls into a certain frequency band in the dual-band (also referred to as multi-band), the mobile terminal may adopt other frequency bands except the frequency band in the dual-band (also referred to as multi-band) for positioning. That is, when a certain frequency band in the dual frequency band (or multi-frequency band) adopted in the mobile terminal positioning is interfered, the mobile terminal can adopt other frequency bands in the dual frequency band (or multi-frequency band) for positioning, so that the positioning frequency band adopted in the mobile terminal positioning can be prevented from being interfered, the positioning result of the mobile terminal is prevented from being influenced by the interference, and the positioning accuracy of the mobile terminal can be improved.

Optionally, in the embodiment of the present invention, the mobile terminal may use the second frequency band for positioning through a hardware path in the mobile terminal. Specifically, in a first possible implementation manner, since positioning is not started before the mobile terminal performs the positioning method provided by the embodiment of the present invention in scenario one described above, hardware paths (for example, a first path and a second path in the following embodiments of the present invention) used for supporting positioning in the mobile terminal are both in a closed state, and at this time, if the mobile terminal needs to perform positioning in the second frequency band through one hardware path (for example, the second path), the mobile terminal needs to control the path to be opened first. In a second possible implementation manner, since in scenario two and scenario three above, before the mobile terminal performs the positioning method provided by the embodiment of the present invention, the mobile terminal has started positioning, and the mobile terminal has adopted all frequency band positioning (for example, dual-band positioning or multi-band positioning) supported by the mobile terminal, therefore, hardware paths (for example, the first path and the second path in the following embodiments of the present invention) in the mobile terminal for supporting positioning are all in an on state, at this time, if the mobile terminal needs to adopt the second frequency band positioning through one hardware path (for example, the second path), the mobile terminal needs to control other paths except for the path to be turned off first.

The first possible implementation and the second possible implementation are exemplarily described below.

In a first possible implementation manner, assuming that the mobile terminal supports dual-band (i.e., a first band and a second band) positioning, and a path corresponding to the first band in the mobile terminal is a first path (i.e., the first path performs positioning by operating in the first band), and a path corresponding to the second band is a second path (i.e., the second path performs positioning by operating in the second band), then, for example, as shown in fig. 2 in conjunction with fig. 1, after the above-mentioned S201, the positioning method provided in the embodiment of the present invention may further include the following S203, and the above-mentioned S202 may be specifically implemented by the following S202 a.

S203, under the condition that the target frequency point is in the first frequency band and the first channel and the second channel are both closed, the mobile terminal controls the second channel to be opened.

And S202a, the mobile terminal adopts the second frequency band to position through the second path.

It can be understood that, in this implementation manner, since the target frequency point (i.e., the frequency point of the signal after intermodulation of the first signal and the second signal) falls within the first frequency band, the target frequency point may generate interference to the first frequency band. In order to avoid the interference of the target frequency point on the positioning result of the mobile terminal, the mobile terminal may control the first path working in the first frequency band not to be opened, and control the second path working in the second frequency band to be opened, that is, the mobile terminal only controls the second path not to be interfered to be opened, so that the mobile terminal may adopt the second frequency band for positioning through the second path, thereby avoiding the positioning frequency band adopted when the mobile terminal is positioned to be interfered, thereby avoiding the intermodulation signal from influencing the positioning result of the mobile terminal, and further improving the positioning accuracy of the mobile terminal.

It can be understood that, in the embodiment of the present invention, the first path may be a hardware path that can adopt first frequency band positioning in the mobile terminal, and the second path may be a hardware path that can adopt second frequency band positioning in the mobile terminal.

For example, fig. 3 shows a hardware schematic diagram of the first path and the second path provided by the embodiment of the present invention. As shown in fig. 3, the first path 306 may include a first positioning antenna 3061, a first filter 3062, a first low noise amplifier 3063, and a second filter 3064, which are connected in this order. The second path 307 may include a second positioning antenna 3071, a third filter 3072, a second low noise amplifier 3073, and a fourth filter 3074, which are connected in sequence.

Wherein the first positioning antenna 3061 may be used for receiving positioning signals over a first frequency band (e.g., the L1 frequency band); the first filter 3062 may be used to filter positioning signals received by the first positioning antenna 3061 for the first time; the first low noise amplifier 3063 may be used for low noise amplification of the positioning signal filtered by the first filter 3062; the second filter 3064 may be used to re-filter the positioning signal amplified by the first low noise amplifier 3063.

The second positioning antenna 3071 may be used to receive positioning signals on a second frequency band (e.g., the L5 frequency band); the third filter 3072 may be used to filter the positioning signal received by the second positioning antenna 3071 for the first time; the second low-noise amplifier 3073 may be used to low-noise amplify the positioning signal filtered by the third filter 3072; the fourth filter 3074 may be used to re-filter the positioning signal amplified by the second low noise amplifier 3073.

Further, as shown in fig. 3, fig. 3 also shows a baseband processor 300, a modem 301, a radio frequency transceiver 302, a radio frequency front end module 303, a first radio frequency antenna 304, a second radio frequency antenna 305, and a power supply system. The baseband processor 300 is connected to a modem 301. The radio frequency transceiver 302 has a positioning processing module 3021 integrated therein. The modem 301 is connected to the rf transceiver 302, the rf transceiver 302 is connected to the rf front-end module 303, and the rf front-end module 303 is connected to the first rf antenna 304 and the second rf antenna 305. The first pin 3022 of the positioning processing module 3021 is connected to the second filter 3064, the second pin 3023 of the positioning processing module 3021 is connected to the fourth filter 3074, and the first low noise amplifier 3063 and the second low noise amplifier 3073 are both connected to the baseband processor 300 (not shown in fig. 3).

The baseband processor 300 may be configured to process communication data between the mobile terminal and the network device, and may control working states of respective devices in the radio frequency front end module 303 according to interaction information between the mobile terminal and the network device, and determine a current connection state of the mobile terminal (e.g., determine whether the mobile terminal is in a dual link state). The target frequency point can be determined according to the frequency point of the signal after intermodulation of two (or more) signals transmitted by the mobile terminal through different connections in the double link (or multiple links), and the positioning frequency band adopted when the mobile terminal is positioned can be determined according to the target frequency point. And controls the positioning processing module 3021 to process the positioning signal.

The modem 301 may be used to demodulate signals received by the mobile terminal from a network device and transmit the demodulated signals to the baseband processor 300 for processing. Or, the method may also be used to modulate a signal to be sent to the network device by the mobile terminal, and transmit the modulated signal to the radio frequency front end module 303 for sending.

The rf transceiver 302 may be used to up-convert, down-convert, and drive-amplify signals transceived by the mobile terminal through the first rf antenna 304 and the second rf antenna 305.

The positioning processing module 3021 may be configured to receive the positioning signal processed by the first path 306 from the first path 306 through the first pin 3022, perform down-conversion and driving amplification on the positioning signal, and analyze and process the processed signal, so as to complete positioning of the mobile terminal. And, the second pin 3023 may be configured to receive the positioning signal processed by the second path 307 from the second path 307, perform down-conversion and driving amplification on the positioning signal, and analyze and process the processed signal, so as to complete positioning of the mobile terminal.

The rf front-end module 303 may be configured to send signals transmitted by the rf transceiver 302 to a network device, and may also be configured to transmit signals received from the network device to the rf transceiver 302.

The power supply system may be used to supply power to the various modules in fig. 3 (in practical implementations, the power supply system is connected to each module to which it supplies power, and only the power supply system is shown in fig. 3 as being connected to the baseband processor 300 and the modem 301).

Optionally, in this embodiment of the present invention, the baseband processor may be further configured to control the first low noise amplifier to be turned on or off to control the first path to be turned on or turned off. And the second low noise amplifier can be controlled to be switched on or switched off so as to control the second path to be switched on or switched off.

In the embodiment of the present invention, the mobile terminal adopting the second frequency band positioning through the second path may be understood as: a positioning module (for example, the positioning module 3021 in fig. 3) of the mobile terminal may receive the positioning signal through the second path, and the second path operates in the second frequency band (specifically, the second positioning antenna in the second path operates in the second frequency band). With reference to fig. 3, it can be understood that the positioning module of the mobile terminal may receive, through the second path, the positioning signal received by the second positioning antenna on the second frequency band. That is, after receiving the positioning signal in the second frequency band, the second positioning antenna may transmit the positioning signal to the second positioning module through the second path, and then the second positioning module may analyze and process the signal, so as to complete positioning of the mobile terminal.

In this implementation manner, because the mobile terminal may only open the second channel of the mobile terminal, in which the positioning frequency band is not interfered by the intermodulation signal, and receive the positioning signal in the second frequency band through the second channel to position the mobile terminal, the positioning frequency band adopted in the positioning of the mobile terminal may be prevented from being interfered, so that the positioning result of the mobile terminal is prevented from being affected by the interference, and the positioning accuracy of the mobile terminal may be improved.

In a second possible implementation manner, assuming that the mobile terminal supports dual-band (i.e., a first band and a second band) positioning, and a path corresponding to the first band in the mobile terminal is a first path (i.e., the first path performs positioning by operating in the first band), and a path corresponding to the second band is a second path (i.e., the second path performs positioning by operating in the second band), then, for example, as shown in fig. 4 in conjunction with fig. 1, after the above-mentioned S201, the positioning method provided in the embodiment of the present invention may further include the following S204, and the above-mentioned S202 may be specifically implemented by the following S202 b.

And S204, under the condition that the target frequency point is in the first frequency band and the first channel and the second channel are both opened, the mobile terminal controls the first channel to be closed.

And S202b, the mobile terminal adopts the second frequency band to position through the second path.

It can be understood that, in this implementation manner, since the target frequency point (i.e., the frequency point of the signal after intermodulation of the first signal and the second signal) falls within the first frequency band, the target frequency point may generate interference to the first frequency band. In order to avoid the interference of the target frequency point to the first frequency band, the mobile terminal can control the first channel working at the first frequency band to be closed and keep the second channel working at the second frequency band to be opened, namely, the mobile terminal only controls the second channel which is not interfered to be opened, so that the mobile terminal can adopt the second frequency band for positioning through the second channel, the positioning frequency band adopted during the positioning of the mobile terminal can be prevented from being interfered, the positioning result of the mobile terminal is prevented from being influenced by the interference, and the positioning accuracy of the mobile terminal can be improved.

For the description of the first path and the second path, reference is specifically made to the description of the first path and the second path in S203 of the foregoing embodiment, and details are not repeated here.

For the description of S202b, reference may be specifically made to the description of S202a in the first possible implementation manner, and details are not repeated here.

In this implementation, because the mobile terminal can control the first access to be closed, that is, only the second access, which is not interfered by the intermodulation signal, of the mobile terminal is opened, and the positioning signal is received in the second frequency band through the second access, so as to position the mobile terminal, the positioning frequency band adopted in the positioning of the mobile terminal can be prevented from being interfered, thereby preventing the positioning result of the mobile terminal from being affected by the interference, and further improving the positioning accuracy of the mobile terminal.

Further, in the embodiment of the present invention, in the first possible implementation manner and the second possible implementation manner, since the mobile terminal may only control the hardware path that uses the second frequency band for positioning to be opened (that is, all the other hardware paths are closed), the power consumption of the mobile terminal may be reduced on the basis of improving the accuracy of positioning the mobile terminal.

Optionally, in the embodiment of the present invention, before the mobile terminal determines the target frequency point, the mobile terminal may first determine a link state between the mobile terminal and a network (specifically, may be a network device), and when the link state between the mobile terminal and the network is a dual link state, the mobile terminal may determine the target frequency point (that is, start to execute the above S201). Specifically, the mobile terminal may determine the link status between the mobile terminal and the network according to interaction information (e.g., target information described below) between the mobile terminal and the network device (network device that establishes a link with the mobile terminal).

For example, referring to fig. 1, as shown in fig. 5, before the above step S201, the positioning method provided in the embodiment of the present invention may further include the following steps S205 and S206, and the above step S201 may be specifically implemented by the following step S201 c.

S205, the mobile terminal acquires the target information.

The target information may be used to indicate a network to which the mobile terminal is currently accessing.

Optionally, in the embodiment of the present invention, the mobile terminal may obtain the target information according to the interaction information between the mobile terminal and the network device. It is understood that when the mobile terminal simultaneously establishes a link with more than one network device, the target information may indicate all network devices currently accessed by the mobile terminal.

Optionally, in the embodiment of the present invention, the interaction information may be information interacted between the mobile terminal and the network device. For example, it may be a signal transmitted between a mobile terminal and a network device. Specifically, the target information may be information carried in the signal, for example, any information that may indicate the network system in which the mobile terminal establishes the link, such as a network identifier of the network in which the mobile terminal establishes the link, a network system identifier of the network device in which the mobile terminal establishes the link, and a device identifier of the network device in which the mobile terminal establishes the link. The method can be determined according to actual use requirements, and the embodiment of the invention is not limited.

For example, assuming that the mobile terminal is in an EN-DC dual link state, that is, the mobile terminal establishes a link with the LTE network and the NR network at the same time, the modem may demodulate a signal (which may carry a network identifier, for example) received by the radio frequency front end module from a network device (including a network device in the LTE network and a network device in the NR network), and feed the demodulated signal back to the baseband processor, and the baseband processor determines, according to the demodulated signal, that the currently linked network of the mobile terminal is the NR network and the LTE network.

S206, the mobile terminal determines whether the mobile terminal is in a double-link state or not according to the target information.

Optionally, in the embodiment of the present invention, if the target information acquired by the mobile terminal indicates that the mobile terminal currently establishes a link with two networks (i.e., network devices), the mobile terminal may determine that the mobile terminal is in a dual-link state.

S201c, under the condition that the mobile terminal is in the double-link state, the mobile terminal determines the target frequency point.

It should be noted that, in the embodiment of the present invention, the dual link may also be a multi-link, that is, links are established between the mobile terminal and a plurality of network devices. For example, the mobile terminal may establish links with multiple networks of different systems (specifically, network devices), for example, the mobile terminal establishes links with an LTE network (specifically, a network device in the LTE network), an NR network (specifically, a network device in the NR network), and a future new generation network (specifically, a network device in the future new generation network); alternatively, the mobile terminal may establish links with multiple network devices in the same-standard network, for example, the mobile terminal establishes links with multiple network devices in an LTE network, multiple network devices in an NR network, or multiple network devices in a future new-generation network.

The positioning method provided by the embodiment of the invention can be applied to the situation that the mobile terminal is in a double-link state and the mobile terminal does not start positioning, and in the scenario that the frequency points of the first signal and the second signal are not changed (i.e. scenario one), the method can also be applied to a situation that the mobile terminal changes from a state without being in a dual link state to a state with being in a dual link state, and the mobile terminal is adopting all frequency band positioning (e.g. dual-band positioning or multi-band positioning) supported by the mobile terminal, and in the scenario that the frequency points of the first signal and the second signal are not changed (i.e. scenario two), the method can also be applied to the case that the mobile terminal is in a dual-link state and the mobile terminal is adopting all frequency band positioning supported by the mobile terminal (e.g. dual-band positioning or multi-band positioning), and in a scene in which the frequency points of the first signal and the second signal are changed (i.e., the scene three). Therefore, in any of the above scenarios i, ii, and iii, when a certain frequency band in multiple frequency bands adopted by the positioning method provided in the embodiment of the present invention is interfered, the mobile terminal can adopt other non-interfered frequency bands in the multiple frequency bands for positioning, so that the positioning frequency band adopted by the mobile terminal can be prevented from being interfered, thereby preventing the interference from affecting the positioning result of the mobile terminal, and further improving the positioning accuracy of the mobile terminal.

In the embodiment of the present invention, the positioning methods shown in the above method drawings are all exemplarily described with reference to one drawing in the embodiment of the present invention. In specific implementation, the positioning method shown in each method drawing can also be implemented by combining any other drawing which can be combined and is illustrated in the above embodiments, and details are not described here.

As shown in fig. 6, an embodiment of the present invention provides a mobile terminal 600, where the mobile terminal 600 may include: a determination module 601 and a location module 602. A determining module 601, configured to determine a target frequency point, where the target frequency point may be a frequency point of a signal after intermodulation of a first signal and a second signal, where the first signal and the second signal are signals transmitted by a mobile terminal through different links in a dual link; a positioning module 602, configured to, when the target frequency point determined by the determining module 601 falls within the first frequency band, perform positioning using a second frequency band, where the first frequency band and the second frequency band are positioning frequency bands supported by the mobile terminal, and the target frequency point falls outside the second frequency band.

Optionally, with reference to fig. 6, as shown in fig. 7, the mobile terminal provided in the embodiment of the present invention may further include a control module 603. A control module 603, configured to control a second path to be opened before the positioning module 602 performs positioning using the second frequency band, and under a condition that both a first path and a second path are closed, where the first path is a path in the mobile terminal that uses positioning using the first frequency band, and the second path is a path in the mobile terminal that uses positioning using the second frequency band; the positioning module 602 is specifically configured to perform positioning using a second frequency band through a second path.

Optionally, with reference to fig. 6, as shown in fig. 7, the mobile terminal provided in the embodiment of the present invention may further include a control module 603. A control module 603, configured to control a first path to be closed before the positioning module 602 performs positioning using the second frequency band, and when both the first path and the second path are open, where the first path is a path in the mobile terminal that uses positioning using the first frequency band, and the second path is a path in the mobile terminal that uses positioning using the second frequency band; the positioning module 602 is specifically configured to perform positioning using a second frequency band through a second path.

Optionally, in the embodiment of the present invention, the determining module 601 is specifically configured to determine a first frequency point and a second frequency point, and determine a target frequency point according to the first frequency point and the second frequency point; the first frequency point is a frequency point of a first signal, and the second frequency point is a frequency point of a second signal.

Optionally, in this embodiment of the present invention, the first frequency point is a central frequency point of the first signal, and the second frequency point is a central frequency point of the second signal. The determining module 601 is specifically configured to determine a third frequency band and a fourth frequency band, determine a center frequency point of the third frequency band as a first frequency point, and determine a center frequency point of the fourth frequency band as a second frequency point; the third frequency band is the frequency band of the first signal, and the fourth frequency band is the frequency band of the second signal.

Optionally, with reference to fig. 6, as shown in fig. 8, the mobile terminal provided in the embodiment of the present invention may further include an obtaining module 604. An obtaining module 604, configured to obtain target information before the determining module 601 determines the target frequency point, where the target information is used to indicate a network to which the mobile terminal is currently accessed; the determining module 601 is further configured to determine whether the mobile terminal is in a dual link state according to the target information acquired by the acquiring module 604; the determining module 601 is specifically configured to determine a target frequency point when it is determined that the mobile terminal is in a dual link state.

Optionally, in this embodiment of the present invention, the first signal may be a signal transmitted by the mobile terminal through a first link in the dual link, and the second signal may be a signal transmitted by the mobile terminal through a second link in the dual link; the first link and the second link are links between the mobile terminal and networks of different systems.

Optionally, in this embodiment of the present invention, the first signal may be a signal in a long term evolution network, and the second signal may be a signal in a new generation wireless network; the first frequency band may be an L1 frequency band, and the second frequency band may be an L5 frequency band; alternatively, the first frequency band may be an L5 frequency band, and the second frequency band may be an L1 frequency band;

or,

the first signal may be a signal in a new generation wireless network, and the second signal may be a signal in a long term evolution network; the first frequency band may be an L1 frequency band, and the second frequency band may be an L5 frequency band; alternatively, the first frequency band may be an L5 frequency band, and the second frequency band may be an L1 frequency band.

The mobile terminal provided by the embodiment of the present invention can implement each process implemented by the mobile terminal in the above method embodiments, and is not described herein again in order to avoid repetition.

The embodiment of the invention provides a mobile terminal, which can determine a target frequency point (namely the frequency point of a signal after intermodulation of a first signal and a second signal, wherein the first signal and the second signal are signals transmitted by the mobile terminal through different links in a double link), and can adopt a second frequency band for positioning under the condition that the target frequency point falls in a first frequency band; the first frequency band and the second frequency band are positioning frequency bands supported by the mobile terminal, and the target frequency point falls outside the second frequency band. By the scheme, when the mobile terminal supporting multi-band positioning works in a double-link state, if the frequency point of the signal after intermodulation, which is transmitted by the mobile terminal through different links in the double-link, falls into a certain frequency band in the multi-band, the mobile terminal can adopt other frequency bands except the frequency band to position in the multi-band. That is, when a certain frequency band in multiple frequency bands adopted by the mobile terminal is interfered, the mobile terminal can adopt other frequency bands in the multiple frequency bands for positioning, so that the positioning frequency band adopted by the mobile terminal during positioning can be prevented from being interfered, the positioning result of the mobile terminal is prevented from being influenced by the interference, and the positioning accuracy of the mobile terminal can be improved.

Fig. 9 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention. As shown in fig. 9, the mobile terminal 100 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 9 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted mobile terminal, a wearable device, a pedometer, and the like.

The processor 110 may be configured to determine a target frequency point, and position the target frequency point in the first frequency band by using the second frequency band through the radio frequency unit 101. The target frequency point is a frequency point of a signal after intermodulation of a first signal and a second signal, and the first signal and the second signal are signals transmitted by the mobile terminal through different links in the double links; the first frequency band and the second frequency band are positioning frequency bands supported by the mobile terminal, and the target frequency point falls outside the second frequency band.

Optionally, in this embodiment of the present invention, the processor 110 shown in fig. 9 may specifically include the baseband processor 300 and the modem 301 shown in fig. 3 in the foregoing method embodiment. The rf unit 101 may specifically include the rf transceiver 302 (integrated with the positioning module 3021), the rf front-end module 303, the first path 306, and the second path 307 as shown in fig. 3 in the above method embodiment.

For the description of the baseband processor 300, the modem 301, the radio frequency transceiver 302, the radio frequency front end module 303, the first path 306, the second path 307, and the like, reference may be specifically made to the description related to fig. 3 in the foregoing method embodiment, and details are not described herein again.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 may be used for receiving and sending signals during a message transmission or call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system. The low noise amplifier can be used for amplifying the positioning signal received by the mobile terminal so that a post chip can process the positioning signal.

The mobile terminal provides wireless broadband internet access to the user through the network module 102, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.

The input unit 104 is used to receive an audio or video signal. The input unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102. The microphone 1042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 106 is used to display information input by a user or information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. Touch panel 1071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1071 (e.g., operations by a user on or near touch panel 1071 using a finger, stylus, or any suitable object or attachment). The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and receives and executes commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. Specifically, other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 1071 may be overlaid on the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although in fig. 9, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

The interface unit 108 is an interface through which an external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; alternatively, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and optionally, the power supply 111 may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.

In addition, the mobile terminal 100 includes some functional modules that are not shown, and thus, the detailed description thereof is omitted.

Optionally, an embodiment of the present invention further provides a mobile terminal, where the mobile terminal may include the processor 110, the memory 109, and a computer program stored in the memory 109 and capable of being executed on the processor 110, as shown in fig. 9, and when the computer program is executed by the processor 110, the computer program implements each process implemented by the mobile terminal in the foregoing method embodiment, and can achieve the same technical effect, and in order to avoid repetition, the details are not described here again.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process implemented by the mobile terminal in the foregoing method embodiments, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may include a read-only memory (ROM), a Random Access Memory (RAM), a magnetic or optical disk, and the like.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a mobile terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A positioning method is applied to a mobile terminal, and is characterized in that the method comprises the following steps:

determining a target frequency point, wherein the target frequency point is a frequency point of a signal after intermodulation of a first signal and a second signal, and the first signal and the second signal are signals transmitted by the mobile terminal through different links in a double link;

and under the condition that the target frequency point falls in the first frequency band, adopting a second frequency band to carry out positioning, wherein the first frequency band and the second frequency band are the positioning frequency bands supported by the mobile terminal, the first frequency band is the frequency band interfered by the target frequency point, and the target frequency point falls outside the second frequency band.

2. The method according to claim 1, wherein before the positioning using the second frequency band, the method further comprises:

controlling a second channel to be opened under the condition that a first channel and the second channel are both closed, wherein the first channel is a channel positioned by adopting the first frequency band in the mobile terminal, and the second channel is a channel positioned by adopting the second frequency band in the mobile terminal;

the positioning by adopting the second frequency band comprises the following steps:

and positioning by adopting the second frequency band through the second path.

3. The method according to claim 1, wherein before the positioning using the second frequency band, the method further comprises:

controlling a first channel to be closed under the condition that the first channel and a second channel are both opened, wherein the first channel is a channel positioned by adopting the first frequency band in the mobile terminal, and the second channel is a channel positioned by adopting the second frequency band in the mobile terminal;

and positioning by adopting the second frequency band through the second path.

4. The method according to any one of claims 1 to 3, wherein the determining a target frequency point comprises:

determining a first frequency point and a second frequency point, wherein the first frequency point is the frequency point of the first signal, and the second frequency point is the frequency point of the second signal;

and determining the target frequency point according to the first frequency point and the second frequency point.

5. The method according to claim 4, wherein the first frequency point is a center frequency point of the first signal, and the second frequency point is a center frequency point of the second signal;

the determining the first frequency point and the second frequency point includes:

determining a third frequency band and a fourth frequency band, wherein the third frequency band is the frequency band of the first signal, and the fourth frequency band is the frequency band of the second signal;

and determining the central frequency point of the third frequency band as the first frequency point, and determining the central frequency point of the fourth frequency band as the second frequency point.

6. The positioning method according to any one of claims 1 to 3, wherein before determining the target frequency point, the method further comprises:

acquiring target information, wherein the target information is used for indicating a network currently accessed by the mobile terminal;

determining whether the mobile terminal is in a double-link state or not according to the target information;

the determining the target frequency point comprises the following steps:

and determining the target frequency point under the condition that the mobile terminal is in a double-link state.

7. The positioning method according to any one of claims 1 to 3, wherein the first signal is a signal transmitted by the mobile terminal through a first link of a dual link, and the second signal is a signal transmitted by the mobile terminal through a second link of the dual link;

the first link and the second link are links between the mobile terminal and networks of different systems.

8. The method of claim 1, wherein the first signal is a signal in a long term evolution network, and the second signal is a signal in a new generation wireless network; the first frequency band is an L1 frequency band, and the second frequency band is an L5 frequency band; or, the first frequency band is an L5 frequency band, and the second frequency band is an L1 frequency band;

or,

the first signal is a signal in a new generation wireless network, and the second signal is a signal in a long term evolution network; the first frequency band is an L1 frequency band, and the second frequency band is an L5 frequency band; or, the first frequency band is an L5 frequency band, and the second frequency band is an L1 frequency band.

9. A mobile terminal, comprising: a determining module and a positioning module;

the determining module is configured to determine a target frequency point, where the target frequency point is a frequency point of a signal after intermodulation of a first signal and a second signal, and the first signal and the second signal are signals transmitted by the mobile terminal through different links in a dual link;

the positioning module is used for adopting a second frequency band for positioning under the condition that the target frequency point determined by the determining module falls in a first frequency band, wherein the first frequency band and the second frequency band are the positioning frequency bands supported by the mobile terminal, the first frequency band is the frequency band interfered by the target frequency point, and the target frequency point falls outside the second frequency band.

10. The mobile terminal of claim 9, wherein the mobile terminal further comprises a control module;

the control module is configured to control the second channel to be opened when both a first channel and a second channel are closed before the positioning module performs positioning using the second frequency band, where the first channel is a channel in the mobile terminal that performs positioning using the first frequency band, and the second channel is a channel in the mobile terminal that performs positioning using the second frequency band;

the positioning module is specifically configured to perform positioning using the second frequency band through the second path.

11. The mobile terminal of claim 9, wherein the mobile terminal further comprises a control module;

the control module is configured to control the first path to be closed when both the first path and the second path are open before the positioning module performs positioning using the second frequency band, where the first path is a path in the mobile terminal that performs positioning using the first frequency band, and the second path is a path in the mobile terminal that performs positioning using the second frequency band;

12. The mobile terminal according to any one of claims 9 to 11, wherein the determining module is specifically configured to determine a first frequency point and a second frequency point, and determine the target frequency point according to the first frequency point and the second frequency point; the first frequency point is a frequency point of the first signal, and the second frequency point is a frequency point of the second signal.

13. The mobile terminal of claim 12, wherein the first frequency point is a center frequency point of the first signal, and the second frequency point is a center frequency point of the second signal;

the determining module is specifically configured to determine a third frequency band and a fourth frequency band, determine a central frequency point of the third frequency band as the first frequency point, and determine a central frequency point of the fourth frequency band as the second frequency point; the third frequency band is a frequency band of the first signal, and the fourth frequency band is a frequency band of the second signal.

14. The mobile terminal according to any of claims 9 to 11, wherein the mobile terminal further comprises an acquisition module;

the obtaining module is configured to obtain target information before the determining module determines the target frequency point, where the target information is used to indicate a network to which the mobile terminal is currently accessed;

the determining module is further configured to determine whether the mobile terminal is in a dual link state according to the target information acquired by the acquiring module;

the determining module is specifically configured to determine the target frequency point when it is determined that the mobile terminal is in a dual link state.

15. The mobile terminal according to any of claims 9 to 11, wherein the first signal is a signal transmitted by the mobile terminal through a first link of a dual link, and the second signal is a signal transmitted by the mobile terminal through a second link of the dual link;

16. The mobile terminal of claim 9, wherein the first signal is a signal in a long term evolution network, and the second signal is a signal in a new generation wireless network; the first frequency band is an L1 frequency band, and the second frequency band is an L5 frequency band; or, the first frequency band is an L5 frequency band, and the second frequency band is an L1 frequency band;

or,

17. A mobile terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the positioning method according to any one of claims 1 to 8.

18. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the positioning method according to any one of claims 1 to 8.