Multi-band dynamic frequency point moving method and device

Abstract

The invention relates to a multi-band dynamic frequency point moving method and device, and the method comprises the steps: extracting center frequency points of all carriers in a supporting band; screening the highest center frequency point and the lowest center frequency point from the center frequency points of all carriers; calculating an optimal common frequency point according to the highest center frequency point and the lowest center frequency point, and configuring the optimal common frequency point to a local oscillator; and moving each carrier to a corresponding position based on the optimal common frequency point. According to the invention, on the basis of the existing equipment capability, frequency point dynamic moving coverage can be realized as far as possible, re-upgrading is not needed, multi-band and cross-band multiplexing LO (or first-level NCO) is supported, and the deployment cost is saved.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to a multi-band dynamic frequency point shifting method and device. Background Art

[0002] With the development of wireless communication technology, 5G technology has been widely used around the world. 5G not only provides higher transmission speed and lower latency, but also has more accurate and reliable frequency schedule control technology.

[0003] 3GPP has specified a list of frequency bands supported by 5G NR. The 5G NR spectrum range can reach 100GHz, and two major frequency ranges are specified, namely FR1 and FR2. Among them, the frequency range corresponding to FR1 is 450MHz-6GHz, and the frequency range corresponding to FR2 is 24.25GHz-52.6GHz.

[0004] 5G NR frequency bands are divided into: FDD, TDD, SUL and SDL. SUL and SDL are supplementary bands, representing uplink and downlink respectively. When a device needs to work in a certain frequency band, it is necessary to move the frequency point to the corresponding frequency point to complete the sampling. The current mainstream solution is to fix the local oscillator LO (or the first-level NCO) in the required working frequency band, and then use the second-level NCO to move the carrier. This method is usually a customized solution for the device. The device can only work in a certain frequency band and cannot quickly switch frequency bands or work in multiple frequency bands. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a multi-band dynamic frequency point shifting method and device, which can achieve dynamic frequency point shifting coverage as much as possible based on the capabilities of existing equipment without the need for re-upgrade, and support multi-band, cross-band LO (or primary NCO) reuse, saving deployment costs.

[0006] The technical solution adopted by the present invention to solve the technical problem is: to provide a multi-band dynamic frequency point shifting method, comprising the following steps:

[0007] Extract the center frequency points of all carriers in the supported frequency band;

[0008] Filter out the highest center frequency and the lowest center frequency from the center frequencies of all carriers;

[0009] Calculate an optimal common frequency point according to the highest center frequency point and the lowest center frequency point, and configure the optimal common frequency point into a local oscillator;

[0010] Each carrier is moved to a corresponding position based on the optimal common frequency point.

[0011] The optimal common frequency point is Calculated, where f is the optimal common frequency, f A is the highest center frequency, f B is the lowest center frequency.

[0012] When each carrier is moved to a corresponding position based on the optimal common frequency point, the shift amount of the i-th carrier is: Δf i =f i -f, where Δf i is the shift amount of the ith carrier, f i is the center frequency of the ith carrier, and f is the optimal common frequency.

[0013] The multi-band dynamic frequency point shifting method also includes:

[0014] creating a new carrier within the supported frequency band;

[0015] Determine whether the center frequency of the new carrier is greater than the highest center frequency;

[0016] If the center frequency of the new carrier is greater than the highest center frequency, the highest center frequency is adjusted to the center frequency of the new carrier, and the optimal common frequency is recalculated;

[0017] If the center frequency of the new carrier is less than the highest center frequency, determining whether the center frequency of the new carrier is less than the lowest center frequency;

[0018] If the center frequency of the new carrier is less than the lowest center frequency, the lowest center frequency is adjusted to the center frequency of the new carrier, and the optimal common frequency is recalculated.

[0019] The technical solution adopted by the present invention to solve the technical problem is: to provide a multi-band dynamic frequency point shifting device, comprising:

[0020] An extraction module, used to extract the center frequency points of all carriers in the supported frequency band;

[0021] A screening module is used to screen out the highest center frequency and the lowest center frequency from the center frequency of all carriers;

[0022] A calculation module, used for calculating an optimal common frequency point according to the highest center frequency point and the lowest center frequency point, and configuring the optimal common frequency point into a local oscillator;

[0023] The moving module is used to move each carrier to a corresponding position based on the optimal common frequency point.

[0024] The calculation module is Calculate the optimal common frequency point, where f is the optimal common frequency point, f Ais the highest center frequency, f B is the lowest center frequency.

[0025] When the shifting module shifts each carrier to a corresponding position based on the optimal common frequency point, the shift amount of the i-th carrier is: Δf i =f i -f, where Δf i is the shift amount of the ith carrier, f i is the center frequency of the ith carrier, and f is the optimal common frequency.

[0026] The multi-band dynamic frequency point shifting device also includes:

[0027] A creation module, used to create a new carrier in the supported frequency band;

[0028] A highest center frequency determination module, used to determine whether the center frequency of the new carrier is greater than the highest center frequency;

[0029] A first processing module, configured to adjust the highest center frequency to the center frequency of the new carrier when the center frequency of the new carrier is greater than the highest center frequency, and recalculate the optimal common frequency;

[0030] A minimum center frequency judgment module, used to judge whether the center frequency of the new carrier is less than the minimum center frequency when the center frequency of the new carrier is less than the maximum center frequency;

[0031] The second processing module is used to adjust the lowest center frequency to the center frequency of the new carrier when the center frequency of the new carrier is lower than the lowest center frequency, and recalculate the optimal common frequency.

[0032] Beneficial Effects

[0033] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art: the present invention adopts the method of dynamically calculating the optimal common frequency of all carrier center frequencies, and configures it into LO (or primary NCO), and then calculates the frequency difference of each carrier as the frequency of secondary NCO. Under the condition of hardware support, it can be more flexible, supporting multiple frequency bands to share one channel or multiple channels, and it can be achieved by only software upgrade without changing the hardware. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a flow chart of a multi-band dynamic frequency point shifting method according to a first embodiment of the present invention;

[0035] Figure 2 This is a carrier distribution diagram in Example 1 of the present invention. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0037] The first embodiment of the present invention relates to a multi-band dynamic frequency shifting method, such as Figure 1 As shown, the following steps are included:

[0038] Step 1: Extract the center frequency points of all carriers in the supported frequency band.

[0039] Step 2: Filter out the highest center frequency and the lowest center frequency from the center frequencies of all carriers.

[0040] Step 3: Calculate the optimal common frequency point according to the highest center frequency point and the lowest center frequency point, and configure the optimal common frequency point into the local oscillator. In this step, the optimal common frequency point can be obtained by Calculated, where f is the optimal common frequency, f A is the highest center frequency, f B is the lowest center frequency.

[0041] Step 4: Move each carrier to a corresponding position based on the optimal common frequency point. In this step, the shift amount of the i-th carrier is: Δf i =f i -f, where Δf i is the shift amount of the ith carrier, f i is the center frequency of the ith carrier, and f is the optimal common frequency.

[0042] The carriers involved in the implementation manner of the present invention may be carriers in the same frequency band or carriers in different frequency bands. The present invention is further described below through two specific embodiments.

[0043] Embodiment 1:

[0044] This embodiment moves the carriers in the A frequency band. Figure 2As shown in the figure, first, find the carrier B corresponding to the highest center frequency and the carrier A corresponding to the lowest center frequency in the A frequency band; then, calculate the average of the center frequency CenterFreqB of carrier B and the center frequency CenterFreqA of carrier A to obtain the optimal common frequency, and use the optimal common frequency as the frequency of LO (or primary NCO). Finally, each carrier is moved to the corresponding carrier position through the secondary NCO, where the movement amount of carrier A is CenterFreqA-(CenterFreqA+CenterFreqB) / 2; the movement amount of carrier B is CenterFreqB-(CenterFreqA+CenterFreqB) / 2; and the movement amount of carrier C is CenterFreqC-(CenterFreqA+CenterFreqB) / 2.

[0045] Embodiment 2:

[0046] This embodiment moves the carriers in the A band, the B band, and the C band. First, find the carrier F corresponding to the highest center frequency and the carrier A corresponding to the lowest center frequency in the A band, the B band, and the C band; then, calculate the average of the center frequency CenterFreqF of the carrier F and the center frequency CenterFreqA of the carrier A to obtain the optimal common frequency, and use the optimal common frequency as the frequency of the LO (or primary NCO). Finally, each carrier is moved to the corresponding carrier position through the secondary NCO, where the movement amount of carrier A is CenterFreqA-(CenterFreqA+CenterFreqF) / 2; the movement amount of carrier B is CenterFreqB-(CenterFreqA+CenterFreqF) / 2; the movement amount of carrier C is CenterFreqC-(CenterFreqA+CenterFreqF) / 2; the movement amount of carrier D is CenterFreqD-(CenterFreqA+CenterFreqF) / 2; the movement amount of carrier E is CenterFreqE-(CenterFreqA+CenterFreqF) / 2; and the movement amount of carrier F is CenterFreqF-(CenterFreqA+CenterFreqF) / 2.

[0047] It is not difficult to find that the present invention adopts the method of dynamically calculating the optimal common frequency of all carrier center frequencies, configuring it in LO (or primary NCO), and then calculating the frequency difference of each carrier as the frequency of secondary NCO. Under the condition of hardware support, it can be more flexible, supporting multiple frequency bands to share one channel or multiple channels, and it can be achieved by only software upgrade without changing the hardware.

[0048] The second embodiment of the present invention relates to a multi-band dynamic frequency shifting device, comprising:

[0049] An extraction module, used to extract the center frequency points of all carriers in the supported frequency band;

[0050] A screening module is used to screen out the highest center frequency and the lowest center frequency from the center frequency of all carriers;

[0051] A calculation module, used for calculating an optimal common frequency point according to the highest center frequency point and the lowest center frequency point, and configuring the optimal common frequency point into a local oscillator;

[0052] The moving module is used to move each carrier to a corresponding position based on the optimal common frequency point.

[0053] The calculation module is Calculate the optimal common frequency point, where f is the optimal common frequency point, f A is the highest center frequency, f B is the lowest center frequency.

[0054] When the shifting module shifts each carrier to a corresponding position based on the optimal common frequency point, the shift amount of the i-th carrier is: Δf i =f i -f, where Δf i is the shift amount of the ith carrier, f i is the center frequency of the ith carrier, and f is the optimal common frequency.

[0055] The multi-band dynamic frequency point shifting device also includes:

[0056] A creation module, used to create a new carrier in the supported frequency band;

[0057] A highest center frequency determination module, used to determine whether the center frequency of the new carrier is greater than the highest center frequency;

[0058] A first processing module, configured to adjust the highest center frequency to the center frequency of the new carrier when the center frequency of the new carrier is greater than the highest center frequency, and recalculate the optimal common frequency;

[0059] A minimum center frequency judgment module, used to judge whether the center frequency of the new carrier is less than the minimum center frequency when the center frequency of the new carrier is less than the maximum center frequency;

[0060] The second processing module is used to adjust the lowest center frequency to the center frequency of the new carrier when the center frequency of the new carrier is lower than the lowest center frequency, and recalculate the optimal common frequency.

[0061] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0062] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0063] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction method, which is implemented in the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0064] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0065] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A multi-band dynamic frequency point shifting method, characterized in that: The following steps are involved: Extract the center frequency points of all carriers in the supported frequency band; Filter out the highest center frequency and the lowest center frequency from the center frequencies of all carriers; Calculate an optimal common frequency point according to the highest center frequency point and the lowest center frequency point, and configure the optimal common frequency point into a local oscillator; Each carrier is moved to a corresponding position based on the optimal common frequency point.

2. The multi-band dynamic frequency point shifting method according to claim 1, characterized in that: The optimal common frequency point is Calculated, where f is the optimal common frequency, f A is the highest center frequency, f B is the lowest center frequency.

3. The multi-band dynamic frequency point shifting method according to claim 1, characterized in that: When each carrier is moved to a corresponding position based on the optimal common frequency point, the shift amount of the i-th carrier is: Δf i =f i -f, where Δf i is the shift amount of the ith carrier, f i is the center frequency of the ith carrier, and f is the optimal common frequency.

4. The multi-band dynamic frequency point shifting method according to claim 1, characterized in that: Also includes: creating a new carrier within the supported frequency band; Determine whether the center frequency of the new carrier is greater than the highest center frequency; If the center frequency of the new carrier is greater than the highest center frequency, the highest center frequency is adjusted to the center frequency of the new carrier, and the optimal common frequency is recalculated; If the center frequency of the new carrier is less than the highest center frequency, determining whether the center frequency of the new carrier is less than the lowest center frequency; If the center frequency of the new carrier is less than the lowest center frequency, the lowest center frequency is adjusted to the center frequency of the new carrier, and the optimal common frequency is recalculated.

5. A multi-band dynamic frequency point shifting device, characterized in that: include: An extraction module, used to extract the center frequency points of all carriers in the supported frequency band; A screening module is used to screen out the highest center frequency and the lowest center frequency from the center frequency of all carriers; A calculation module, used for calculating an optimal common frequency point according to the highest center frequency point and the lowest center frequency point, and configuring the optimal common frequency point into a local oscillator; The moving module is used to move each carrier to a corresponding position based on the optimal common frequency point.

6. The multi-band dynamic frequency point shifting device according to claim 5, characterized in that: The calculation module is Calculate the optimal common frequency point, where f is the optimal common frequency point, f A is the highest center frequency, f B is the lowest center frequency.

7. The multi-band dynamic frequency point shifting device according to claim 5, characterized in that: When the shifting module shifts each carrier to a corresponding position based on the optimal common frequency point, the shift amount of the i-th carrier is: Δf i =f i -f, where Δf i is the shift amount of the ith carrier, f i is the center frequency of the ith carrier, and f is the optimal common frequency.

8. The multi-band dynamic frequency point shifting device according to claim 5, characterized in that: Also includes: A creation module, used to create a new carrier in the supported frequency band; A highest center frequency determination module, used to determine whether the center frequency of the new carrier is greater than the highest center frequency; A first processing module, configured to adjust the highest center frequency to the center frequency of the new carrier when the center frequency of the new carrier is greater than the highest center frequency, and recalculate the optimal common frequency; A minimum center frequency judgment module, used to judge whether the center frequency of the new carrier is less than the minimum center frequency when the center frequency of the new carrier is less than the maximum center frequency; The second processing module is used to adjust the lowest center frequency to the center frequency of the new carrier when the center frequency of the new carrier is lower than the lowest center frequency, and recalculate the optimal common frequency.

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