A beamforming device and a signal transmission method

Abstract

The present application provides a beamforming device and a signal transmission method, wherein the beamforming device includes a baseband processing module, a first RF channel, a second RF channel, and an antenna module. The antenna module includes a first phase shifter and a second phase shifter, wherein the phase of the first phase shifter is a preset phase, and the phase of the second phase shifter is a variable phase. The baseband processing module can map the main carrier common signal in the carrier signal to the first RF channel, and map the auxiliary carrier common signal in the carrier signal to the second RF channel. Furthermore, the main carrier common signal can be transmitted through an antenna array with fixed antenna weights, and the auxiliary carrier common signal can be transmitted through a group of antenna arrays with non-fixed antenna weights, thereby improving the transmission power of the common signal and expanding the coverage range of the common signal.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and in particular to a beamforming device and a signal sending method. Background Art

[0002] Beamforming (BF) involves adjusting the parameters of the basic units of a phased array to create constructive interference for signals at certain angles and destructive interference for signals at other angles. In communications systems, beamforming can concentrate transmission energy in a specific direction, increasing the transmit power in one direction while minimizing the transmit power in other directions. This extends the communication range in the desired direction and avoids interference in other directions. Beamforming includes digital beam forming (DBF), analog beam forming (ABF), and hybrid beam forming (HBF).

[0003] DBF refers to the baseband superimposing different weights on different RF channels when mapping the original transmit data to the RF channel, ultimately forming different transmit beams through the antenna array. ABF refers to the addition of independent digitally controlled phase shifters to different array elements in the antenna array. The phase shifters are used to control the phase difference of the same signal reaching different array elements, thereby controlling the shape of the transmit beam ultimately formed by multiple array elements. Different phases of the phase shifter configurations result in different transmit beams of the antenna array. DBF and analog beamforming (ABF) can be used independently. If digital beamforming (DBF) and analog beamforming (ABF) are used simultaneously, it is called hybrid beamforming (HBF).

[0004] In order to ensure that the transmission beam of the public signal that needs to be transmitted on the public channel remains stable, the baseband processing module can map the public signal only to the radio frequency channel corresponding to a group of antenna arrays with fixed phase shifter phases for transmission. That is, the public signal is only sent through a group of antenna arrays with fixed antenna weights. The transmission power of the public signal is relatively small, resulting in a smaller coverage range of the public signal. Summary of the Invention

[0005] The present application provides a beamforming device and a signal sending method, which can enable the main carrier public signal to be sent through an antenna array with fixed antenna weights, and the auxiliary carrier public signal to be sent through a group of antenna arrays with non-fixed antenna weights, thereby improving the transmission power of the public signal and expanding the coverage range of the public signal.

[0006] A first aspect of the present application provides a beamforming device, characterized in that the beamforming device includes: a baseband processing module, a first RF channel, a second RF channel and an antenna module, the antenna module includes a first phase shifter and a second phase shifter, the phase of the first phase shifter is a preset phase, and the phase of the second phase shifter is a variable phase; the output end of the baseband processing module is connected to the first RF channel and the second RF channel; the output end of the first RF channel is connected to the first phase shifter; the output end of the second RF channel is connected to the second phase shifter; the baseband processing module is used to map a main carrier common signal in a carrier signal to the first RF channel, and map an auxiliary carrier common signal in the carrier signal to the second RF channel; the first phase shifter is used to adjust the phase of the main carrier common signal according to the preset phase; the second phase shifter is used to adjust the phase of the auxiliary carrier common signal according to an adjustment instruction.

[0007] In the present application, the beamforming device includes a baseband processing module, a first RF channel, a second RF channel, and an antenna module. The antenna module includes a first phase shifter and a second phase shifter, wherein the phase of the first phase shifter is a preset phase and the phase of the second phase shifter is a variable phase. The baseband processing module can map the main carrier common signal in the carrier signal to the first RF channel and the auxiliary carrier common signal in the carrier signal to the second RF channel. Furthermore, the main carrier common signal can be sent through an antenna array with fixed antenna weights, and the auxiliary carrier common signal can be sent through an antenna array with non-fixed antenna weights, thereby improving the transmission power of the common signal and expanding the coverage range of the common signal.

[0008] In a possible implementation of the first aspect, the carrier signal also includes a main carrier service signal and a secondary carrier service signal; the baseband processing module is also used to map the main carrier service signal to the first RF channel and the second RF channel, and map the secondary carrier service signal to the first RF channel and the second RF channel; the first phase shifter is used to adjust the phase of the main carrier service signal and the secondary carrier service signal according to the preset phase; the second phase shifter is used to adjust the phase of the main carrier service signal and the secondary carrier service signal according to the adjustment instruction.

[0009] In this possible implementation, the primary and secondary carrier service signals can be mapped to all RF channels. That is, both the primary and secondary carrier service channels are transmitted simultaneously using two antenna arrays: one with a fixed phase shifter and the other with a dynamically adjusted phase shifter. This improves the transmit power of service signals and expands their coverage.

[0010] In a possible implementation of the first aspect, the beamforming device further includes an antenna array; a first input end of the antenna array is connected to an output end of the first phase shifter; and a second input end of the antenna array is connected to an output end of the second phase shifter.

[0011] This possible implementation method provides a specific implementation method of an antenna module, thereby improving the feasibility of the solution.

[0012] In a possible implementation of the first aspect, when the first RF channel outputs the primary carrier common signal, a power output by the first RF channel is the sum of a power of the primary carrier common signal and a power of the secondary carrier common signal.

[0013] In a possible implementation of the first aspect, when the second RF channel outputs the secondary carrier service signal, a power output by the first RF channel is the sum of a power of the primary carrier common signal and a power of the secondary carrier common signal.

[0014] In the two possible implementations described above, under the HBF architecture, for scenarios where multiple carriers are enabled on the same sector device, the beamforming device can configure a primary carrier and a secondary carrier. The primary carrier uses a radio frequency channel with a fixed phase shifter phase to send public signals, while the secondary carrier uses a radio frequency channel with a dynamically adjustable phase shifter phase to send public signals. At the same time, the idle power of the secondary carrier that is not used to send public signals on the radio frequency channel with a fixed phase shifter phase is used to increase the transmit power of the primary carrier's public signal. This ensures that the transmit beam of the primary carrier's public signal is fixed and that the total transmit power of the primary carrier's public signal does not decrease compared to the scenario where all channels in a normal cell send public signals, and that coverage does not shrink.

[0015] According to a second aspect of the present application, a signal transmission method is provided, which is characterized in that it is applied to a beamforming device, wherein the beamforming device includes a baseband processing module, a first RF channel, a second RF channel and an antenna module, wherein the antenna module includes a first phase shifter and a second phase shifter, wherein the phase of the first phase shifter is a preset phase and the phase of the second phase shifter is a variable phase; the output end of the baseband processing module is connected to the first RF channel and the second RF channel; the output end of the first RF channel is connected to the first phase shifter; the output end of the second RF channel is connected to the second phase shifter; the main carrier common signal in the carrier signal is mapped to the first RF channel through the baseband processing module, and the auxiliary carrier common signal in the carrier signal is mapped to the second RF channel; the phase of the main carrier common signal is adjusted according to the preset phase through the first phase shifter; and the phase of the auxiliary carrier common signal is adjusted according to the adjustment instruction through the second phase shifter.

[0016] In the present application, the beamforming device in the signal transmission method includes a baseband processing module, a first RF channel, a second RF channel and an antenna module. The antenna module includes a first phase shifter and a second phase shifter, wherein the phase of the first phase shifter is a preset phase and the phase of the second phase shifter is a variable phase. The baseband processing module can map the main carrier common signal in the carrier signal to the first RF channel and the auxiliary carrier common signal in the carrier signal to the second RF channel. Furthermore, the main carrier common signal can be transmitted through an antenna array with fixed antenna weights, and the auxiliary carrier common signal can be transmitted through a group of antenna arrays with non-fixed antenna weights, thereby improving the transmission power of the common signal and expanding the coverage range of the common signal.

[0017] In a possible implementation of the second aspect, the carrier signal also includes a main carrier service signal and an auxiliary carrier service signal, and the method also includes: mapping the main carrier service signal to the first RF channel and the second RF channel through the baseband processing module, and mapping the auxiliary carrier service signal to the first RF channel and the second RF channel; adjusting the phase of the main carrier service signal and the auxiliary carrier service signal according to the preset phase through the first phase shifter; and adjusting the phase of the main carrier service signal and the auxiliary carrier service signal according to the adjustment instruction through the second phase shifter.

[0018] In this possible implementation, the primary and secondary carrier service signals can be mapped to all RF channels. That is, both the primary and secondary carrier service channels are transmitted simultaneously using two antenna arrays: one with a fixed phase shifter and the other with a dynamically adjusted phase shifter. This improves the transmit power of service signals and expands their coverage.

[0019] In a possible implementation of the second aspect, the beamforming device further includes an antenna array; a first input end of the antenna array is connected to an output end of the first phase shifter; and a second input end of the antenna array is connected to an output end of the second phase shifter.

[0020] This possible implementation method provides a specific implementation method of an antenna module, thereby improving the feasibility of the solution.

[0021] In a possible implementation of the second aspect, when the first RF channel outputs the primary carrier common signal, a power output by the first RF channel is the sum of a power of the primary carrier common signal and a power of the secondary carrier common signal.

[0022] In a possible implementation of the second aspect, when the second RF channel outputs the secondary carrier service signal, a power output by the first RF channel is the sum of a power of the primary carrier common signal and a power of the secondary carrier common signal.

[0023] In the two possible implementations described above, under the HBF architecture, for scenarios where multiple carriers are enabled on the same sector device, the beamforming device can configure a primary carrier and a secondary carrier. The primary carrier uses a radio frequency channel with a fixed phase shifter phase to send public signals, while the secondary carrier uses a radio frequency channel with a dynamically adjustable phase shifter phase to send public signals. At the same time, the idle power of the secondary carrier that is not used to send public signals on the radio frequency channel with a fixed phase shifter phase is used to increase the transmit power of the primary carrier's public signal. This ensures that the transmit beam of the primary carrier's public signal is fixed and that the total transmit power of the primary carrier's public signal does not decrease compared to the scenario where all channels in a normal cell send public signals, and that coverage does not shrink.

[0024] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages: the beamforming device includes a baseband processing module, a first RF channel, a second RF channel and an antenna module. The antenna module includes a first phase shifter and a second phase shifter, wherein the phase of the first phase shifter is a preset phase and the phase of the second phase shifter is a variable phase. The baseband processing module can map the main carrier common signal in the carrier signal to the first RF channel, and map the auxiliary carrier common signal in the carrier signal to the second RF channel. Furthermore, the main carrier common signal can be sent through an antenna array with fixed antenna weights, and the auxiliary carrier common signal can be sent through a group of antenna arrays with non-fixed antenna weights, thereby improving the transmission power of the common signal and expanding the coverage range of the common signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of the beamforming device provided in this application;

[0026] Figure 2 This is another structural diagram of the beamforming device provided in this application;

[0027] Figure 3 A schematic diagram of power mutual assistance of radio frequency channels in the beamforming device provided in this application;

[0028] Figure 4 A schematic diagram of the power of the service signal output by the radio frequency channel in the beamforming device provided in this application;

[0029] Figure 5 This is a schematic diagram of an embodiment of the beamforming device provided in this application. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the following describes the embodiments of this application in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this application, rather than all the embodiments. It is known to those skilled in the art that with the emergence of new application scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0031] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or modules is not necessarily limited to those steps or modules clearly listed, but may include other steps or modules that are not clearly listed or that are inherent to these processes, methods, products or devices. The naming or numbering of steps in this application does not mean that the steps in the method flow must be executed in the time / logical sequence indicated by the naming or numbering. The process steps that have been named or numbered can be changed in the execution order according to the technical purpose to be achieved, as long as the same or similar technical effects can be achieved.

[0032] The following will be combined with the drawings in this application to clearly and completely describe the technical solutions in this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. The following specific embodiments can be combined with each other. For the same or similar content, no further description will be given in different embodiments. It should also be noted that the length, width, height (or thickness) of the various components shown in the embodiments of this application are only exemplary illustrations and do not limit the storage unit of this application.

[0033] Beamforming (BF) involves adjusting the parameters of the basic units of a phased array to create constructive interference for signals at certain angles and destructive interference for signals at other angles. In communications systems, beamforming can concentrate transmission energy in a specific direction, increasing the transmit power in one direction while minimizing the transmit power in other directions. This extends the communication range in the desired direction and avoids interference in other directions. Beamforming includes digital beam forming (DBF), analog beam forming (ABF), and hybrid beam forming (HBF).

[0034] DBF refers to the baseband superimposing different weights on different RF channels when mapping the original transmit data to the RF channel, ultimately forming different transmit beams through the antenna array. ABF refers to the addition of independent digitally controlled phase shifters to different array elements in the antenna array. The phase shifters are used to control the phase difference of the same signal reaching different array elements, thereby controlling the shape of the transmit beam ultimately formed by multiple array elements. Different phases of the phase shifter configurations result in different transmit beams of the antenna array. DBF and analog beamforming (ABF) can be used independently. If digital beamforming (DBF) and analog beamforming (ABF) are used simultaneously, it is called hybrid beamforming (HBF).

[0035] In order to ensure that the transmission beam of the public signal that needs to be transmitted on the public channel remains stable, the baseband processing module can map the public signal only to the radio frequency channel corresponding to a group of antenna arrays with fixed phase shifter phases for transmission. That is, the public signal is only sent through a group of antenna arrays with fixed antenna weights. The transmission power of the public signal is relatively small, resulting in a smaller coverage range of the public signal.

[0036] To address the above-mentioned problems, the present application provides a beamforming device and a signal sending method, which can enable the main carrier public signal to be sent through an antenna array with fixed antenna weights, and the auxiliary carrier public signal to be sent through a group of antenna arrays with non-fixed antenna weights, thereby improving the transmission power of the public signal and expanding the coverage range of the public signal.

[0037] The following first introduces the beamforming device provided by the present application with reference to the accompanying drawings.

[0038] Figure 1 A schematic structural diagram of the beamforming device provided in this application.

[0039] See also Figure 1 In the present application, the beamforming device may include: a baseband processing module 101, a first RF channel 102, a second RF channel 103 and an antenna module 104, the antenna module 104 includes a first phase shifter 201 and a second phase shifter 202, wherein the phase of the first phase shifter 201 is a preset phase, and the phase of the second phase shifter 202 is a variable phase.

[0040] In this application, the connection relationship between the components in the beamforming device is as follows: Figure 1 As shown, the output end of the baseband processing module 101 is connected to the first RF channel 102 and the second RF channel 103 , the output end of the first RF channel 102 is connected to the first phase shifter 201 , and the output end of the second RF channel 103 is connected to the second phase shifter 202 .

[0041] In the present application, the baseband processing module 101 may map the primary carrier common signal in the carrier signal to the first radio frequency channel, and map the secondary carrier common signal in the carrier signal to the second radio frequency channel.

[0042] In this application, it is assumed that the beamforming devices belonging to the same sector need to open two or more carriers. The beamforming device can divide the carriers into two groups, one of which is configured as a primary carrier (PCC) and the other is configured as a secondary carrier (SCC). In this application, the primary carrier may refer to a carrier that can access users, and the primary carrier is mainly used as the primary carrier cell (PCell) of CA users. The secondary carrier refers to a carrier that cannot access users, and the secondary carrier can only be used as a secondary carrier cell (SCell) of CA users.

[0043] For common channels, when the baseband processing module 101 maps the carrier signal, the transmission RF channel mapping is performed separately for the main carrier and the auxiliary carrier, where the common channel of the main carrier is only mapped to the RF channel with a fixed phase shifter phase, and the common channel of the auxiliary carrier is only mapped to the RF channel with a dynamically adjustable phase shifter phase.

[0044] In the present application, the first phase shifter 201 can adjust the phase of the main carrier common signal according to a preset phase, and the second phase shifter 202 can adjust the phase of the auxiliary carrier common signal according to an adjustment instruction.

[0045] In this application, it is assumed that the beamforming device is applied to the HBF architecture, and the antenna array and the RF channel connected to the corresponding antenna array can be divided into two groups, where the phase of the phase shifter connected to one group of antenna arrays is a pre-set fixed value, and the phase of the phase shifter connected to the other group of antenna arrays can be dynamically adjusted according to the needs of the service channel.

[0046] In this application, optional Figure 1 This is merely an example. The beamforming device may include more radio frequency channels and more phase shifters. In addition, the antenna module may also include other components, which are not limited here.

[0047] The present application provides a beamforming device, which includes a baseband processing module, a first RF channel, a second RF channel, and an antenna module. The antenna module includes a first phase shifter and a second phase shifter, wherein the phase of the first phase shifter is a preset phase and the phase of the second phase shifter is a variable phase. The baseband processing module can map the main carrier common signal in the carrier signal to the first RF channel and the auxiliary carrier common signal in the carrier signal to the second RF channel. Furthermore, the main carrier common signal can be transmitted through an antenna array with fixed antenna weights, and the auxiliary carrier common signal can be transmitted through a group of antenna arrays with non-fixed antenna weights, thereby improving the transmission power of the common signal and expanding the coverage range of the common signal.

[0048] In the present application, the baseband processing module included in the beamforming device can control the mapping of not only the common signal but also the service signal. The specific mapping method of the service signal will be described in detail in the following embodiments.

[0049] Optionally, in the present application, the carrier signal may also include a primary carrier service signal and a secondary carrier service signal.

[0050] In the present application, the baseband processing module 101 may further map the primary carrier service signal to the first RF channel 102 and the second RF channel 103, and map the secondary carrier service signal to the first RF channel 102 and the second RF channel 103. The first phase shifter 201 may adjust the phase of the primary carrier service signal and the secondary carrier service signal according to a preset phase. The second phase shifter 202 may adjust the phase of the primary carrier service signal and the secondary carrier service signal according to an adjustment instruction.

[0051] In this application, for service channels, in baseband processing, the main carrier service signal and the auxiliary carrier service signal can be mapped to all RF channels, that is, the service channels of the main carrier and the auxiliary carrier are simultaneously sent using two sets of antenna arrays with fixed phase shifters and dynamically adjusted phase shifters.

[0052] Figure 2 This is another structural schematic diagram of the beamforming device provided in this application.

[0053] See also Figure 2 In this application, in addition to the elements described in the above examples, the antenna module included in the beamforming device may also include an antenna array. This specific implementation will be described in detail in the following examples.

[0054] In the present application, optionally, the beamforming device further includes an antenna array 203. The first input end of the antenna array 203 is connected to the output end of the first phase shifter, and the second input end of the antenna array is connected to the output end of the second phase shifter.

[0055] In the present application, optionally, in the beamforming device, power mutual assistance can be achieved between the first RF channel and the second RF channel, and the specific implementation method will be described in the following embodiments.

[0056] Figure 3 A schematic diagram of power mutual assistance of RF channels in the beamforming device provided in this application.

[0057] See also Figure 3 In this application, when the first RF channel outputs a main carrier common signal, the power output by the first RF channel is the sum of the power of the main carrier common signal and the power of the auxiliary carrier common signal. Furthermore, when the second RF channel outputs an auxiliary carrier service signal, the power output by the first RF channel is the sum of the power of the main carrier common signal and the power of the auxiliary carrier common signal.

[0058] It can be understood that, according to the mapping relationship between the common signal and the service signal in the beamforming device, it can be known that the main carrier and the auxiliary carrier use different radio frequency channels to send common signals. Therefore, on a specific radio frequency channel, power mutual assistance between the common channels of the main carrier and the auxiliary carrier can be achieved. For the radio frequency channel (first radio frequency channel) on which the main carrier sends a common signal, since the auxiliary carrier does not send a common signal on the corresponding radio frequency channel, the idle power of the auxiliary carrier on the corresponding radio frequency channel that is not used to send a common signal can be given to the main carrier for use, thereby increasing the transmission power of the common signal of the main carrier. Similarly, for the radio frequency channel (second radio frequency channel) on which the auxiliary carrier sends a common signal, since the main carrier does not send a common signal on the corresponding radio frequency channel, the idle power of the main carrier on the corresponding radio frequency channel that is not used to send a common signal can be given to the auxiliary carrier for use, thereby increasing the transmission power of the common signal of the auxiliary carrier.

[0059] Figure 4 This is a schematic diagram of the power of the service signal output by the radio frequency channel in the beamforming device provided in this application.

[0060] See also Figure 4 The baseband processing module maps the primary and secondary carrier service signals to all RF channels. This means both signals are transmitted simultaneously using two antenna arrays: one with a fixed phase shifter and the other with a dynamically adjusted phase shifter. Each RF channel transmits the primary and secondary carrier service signals at the same power, ensuring uniform and stable output.

[0061] The following uses a specific example to illustrate how to implement power mutual assistance between the first radio frequency channel and the second radio frequency channel.

[0062] For example, an embodiment of the present invention is described by taking NR as an example. Figure 2 and Figure 3 A sector device in a base station activates two carriers, one of which is configured as the primary carrier and the other as the secondary carrier. The phase shifter phase of the antenna array corresponding to half of the cell's RF channels is fixed to a specific value to form a specific transmit beam. The phase shifter phase of the antenna array corresponding to the other half of the cell's RF channels is dynamically adjusted as needed. For NR's common signals, taking the synchronization signal and PBCH block (SSB) as an example, during baseband processing, the primary carrier SSB is mapped only to the half of the RF channels with a fixed phase shifter phase for transmission, and the secondary carrier SSB is mapped only to the half of the RF channels with a dynamically adjustable phase shifter phase for transmission. Then, on all RF channels, the SSB power of the main carrier and the auxiliary carrier are mutually assisted. For the half of the RF channels with a fixed phase shifter, since the auxiliary carrier does not send SSB on these RF channels, the power originally used by the auxiliary carrier to send SSB can be mutually assisted with the main carrier, and the power of the main carrier to send SSB is doubled. For the half of the RF channels with a dynamically adjusted phase shifter, the power originally used by the main carrier to send SSB is mutually assisted with the auxiliary carrier, and the power of the auxiliary carrier to send SSB is doubled.

[0063] In the above example, the common channel takes NR SSB as an example. After applying the multi-carrier mutual assistance scheme of the present invention, the same sector device of the base station starts a main carrier and a secondary carrier. The NR SSB of the main carrier is only transmitted in half of the radio frequency channels where the phase shifter phase is fixed. Therefore, the transmit beam of the NR SSB of the main carrier is fixed. The NR SSB of the secondary carrier is only transmitted in half of the radio frequency channels where the phase shifter phase can be dynamically adjusted. Therefore, the transmit beam of the NR SSB of the secondary carrier changes dynamically with the phase shifter phase. At the same time, the main carrier and the secondary carrier perform SSB power mutual assistance, and the transmit power of the NR SSB of the main carrier and the secondary carrier is doubled.

[0064] In addition, compared with the traditional HBF architecture, the phase of the phase shifter of the antenna array of all RF channels can be dynamically adjusted. NR SSB is transmitted on all RF channels, and the shape of the NR SSB transmission beam changes dynamically with the phase of the phase shifter. That is, the synchronization signal and broadcast signal of the NR cell fluctuate greatly. Therefore, the access success rate of users in the NR cell, especially those at the edge of the cell, decreases.

[0065] When using the technical solution of the existing technology, NR SSB is only transmitted in half of the RF channels where the phase of the phase shifter is fixed. Although the transmission beam of NR SSB is fixed, the total transmission power is reduced by half because the number of transmission channels is reduced by half, so the coverage range of the NR cell will shrink.

[0066] Figure 5This is a schematic diagram of an embodiment of the beamforming device provided in this application.

[0067] See also Figure 5 After applying the multi-carrier mutual assistance scheme of the present invention, compared with the basic HBF architecture, the number of RF channels sent by the main carrier NR SSB is reduced by half, but the NR SSB transmission power of the corresponding RF channel is doubled, so the total transmission power of NR SSB is the same, but the NR SSB transmission beam is stable, and the access success rate of cell users is improved. Compared with the technical solution of the prior art one, the number of RF channels sent by the main carrier NR SSB is the same, but the NR SSB transmission power of the corresponding RF channel is doubled, so the total transmission power of NR SSB is doubled, and the cell coverage is expanded.

[0068] In this application, under the HBF architecture, for the scenario where multiple carriers are enabled on the same sector device, the beamforming device can configure the main carrier and the auxiliary carrier. The main carrier uses the radio frequency channel with a fixed phase shifter phase to send the public signal, and the auxiliary carrier uses the radio frequency channel with a dynamically adjustable phase shifter phase to send the public signal. At the same time, the idle power of the auxiliary carrier that is not used to send the public signal on the radio frequency channel with a fixed phase shifter phase is used to increase the transmission power of the main carrier public signal, which not only ensures that the transmission beam of the main carrier public signal is fixed, but also ensures that the total transmission power of the main carrier public signal does not decrease compared to the scenario where all channels of the ordinary cell send public signals, and the coverage does not shrink.

[0069] In the present application, the specific implementation method and beneficial effects of the signal transmission method are similar to the implementation method of the beamforming device in the above embodiment, and the beneficial effects are also similar. For details, please refer to the beamforming device in the above example for understanding, and the details will not be repeated here.

[0070] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0071] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0072] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0073] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0074] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, read-only memory), random access memory (RAM, random access memory), disk or optical disk, and other media that can store program code.

Claims

1. A beamforming device, characterized in that: The beamforming device includes: a baseband processing module, a first radio frequency channel, a second radio frequency channel, and an antenna module, wherein the antenna module includes a first phase shifter and a second phase shifter, wherein the phase of the first phase shifter is a preset phase, and the phase of the second phase shifter is a variable phase; The output end of the baseband processing module is connected to the first radio frequency channel and the second radio frequency channel; The output end of the first radio frequency channel is connected to the first phase shifter; An output end of the second radio frequency channel is connected to the second phase shifter; The baseband processing module is configured to map a main carrier common signal in the carrier signal to the first radio frequency channel, and map a secondary carrier common signal in the carrier signal to the second radio frequency channel; The first phase shifter is used to adjust the phase of the main carrier common signal according to the preset phase; The second phase shifter is configured to adjust the phase of the auxiliary carrier common signal according to an adjustment instruction.

2. The beamforming device according to claim 1, wherein: The carrier signal also includes a main carrier service signal and a secondary carrier service signal; The baseband processing module is further configured to map the primary carrier service signal to the first radio frequency channel and the second radio frequency channel, and map the secondary carrier service signal to the first radio frequency channel and the second radio frequency channel; The first phase shifter is configured to adjust the phases of the main carrier service signal and the auxiliary carrier service signal according to the preset phase; The second phase shifter is used to adjust the phases of the main carrier service signal and the auxiliary carrier service signal according to an adjustment instruction.

3. The beamforming device according to claim 1 or 2, characterized in that: The beamforming device further includes an antenna array; The first input end of the antenna array is connected to the output end of the first phase shifter; The second input end of the antenna array is connected to the output end of the second phase shifter.

4. The beamforming device according to any one of claims 1 to 3, characterized in that: When the first radio frequency channel outputs the primary carrier common signal, the power output by the first radio frequency channel is the sum of the power of the primary carrier common signal and the power of the secondary carrier common signal.

5. The beamforming device according to any one of claims 1 to 4, characterized in that: When the second radio frequency channel outputs the auxiliary carrier service signal, the power output by the first radio frequency channel is the sum of the power of the main carrier common signal and the power of the auxiliary carrier common signal.

6. A signal sending method, characterized in that: Applicable to a beamforming device, the beamforming device comprising a baseband processing module, a first radio frequency channel, a second radio frequency channel, and an antenna module, the antenna module comprising a first phase shifter and a second phase shifter, the phase of the first phase shifter being a preset phase, and the phase of the second phase shifter being a variable phase; The output end of the baseband processing module is connected to the first radio frequency channel and the second radio frequency channel; The output end of the first radio frequency channel is connected to the first phase shifter; An output end of the second radio frequency channel is connected to the second phase shifter; The method comprises: Mapping the main carrier common signal in the carrier signal to the first radio frequency channel, and mapping the auxiliary carrier common signal in the carrier signal to the second radio frequency channel by the baseband processing module; adjusting the phase of the main carrier common signal according to the preset phase by the first phase shifter; The phase of the auxiliary carrier common signal is adjusted according to the adjustment instruction by the second phase shifter.

7. The signal sending method according to claim 6, wherein: The carrier signal further includes a primary carrier service signal and a secondary carrier service signal, and the method further includes: Mapping the primary carrier service signal to the first radio frequency channel and the second radio frequency channel, and mapping the secondary carrier service signal to the first radio frequency channel and the second radio frequency channel by the baseband processing module; adjusting the phases of the main carrier service signal and the auxiliary carrier service signal according to the preset phase by the first phase shifter; The phases of the main carrier service signal and the auxiliary carrier service signal are adjusted according to the adjustment instruction by the second phase shifter.

8. The signal sending method according to claim 6 or 7, characterized in that: The beamforming device further includes an antenna array; The first input end of the antenna array is connected to the output end of the first phase shifter; The second input end of the antenna array is connected to the output end of the second phase shifter.

9. The signal sending method according to any one of claims 6 to 8, characterized in that: When the first radio frequency channel outputs the primary carrier common signal, the power output by the first radio frequency channel is the sum of the power of the primary carrier common signal and the power of the secondary carrier common signal.

10. The signal sending method according to any one of claims 6 to 9, characterized in that: When the second radio frequency channel outputs the auxiliary carrier service signal, the power output by the first radio frequency channel is the sum of the power of the main carrier common signal and the power of the auxiliary carrier common signal.

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