Method, apparatus, terminal, and storage medium for controlling a transmission path

Abstract

A method, an apparatus, a terminal and a storage medium for controlling a transmission path are disclosed. In this application, the method for controlling a transmission path includes the steps of: detecting a current terminal service demand and / or network characteristics (101); matching a corresponding transmission path adjustment mode according to the currently detected service demand and / or network characteristics (102); and adjusting a transmission path from a radio frequency chip to an antenna according to the matched transmission path adjustment mode (103), where the number of devices through the adjusted transmission path is less than the number of devices through the transmission path before adjustment, or the adjusted radio frequency conductive path and wiring are shorter than the adjusted radio frequency conductive path and wiring, or the antenna covering frequency band corresponding to the adjusted antenna path is less than the antenna covering frequency band corresponding to the antenna path before adjustment, the transmission path includes a radio frequency conductive path and an antenna path, and the antenna path is used for antenna selection.

Description

Technical Field

[0001] This application is filed based on a Chinese patent application with an application number of 202110910008.1 and a filing date of August 9, 2021, claims the priority of the Chinese patent application, and incorporates all the contents of the Chinese patent application by reference into this application.

[0002] This application relates to the field of communications, and particularly to a method and apparatus for controlling a transmission path, a terminal, and a storage medium.

Background Art

[0003] With the development and evolution of communication technologies, how to improve the transmission power and reception sensitivity, enhance the radio frequency and antenna performance of the terminal, and reduce the resource loss of the communication system has become an urgent problem to be solved.

[0004] With the increase in the standards and frequency bands of terminals, the number of transmission paths from the radio frequency chip to the antenna of the terminal has also increased significantly. On the other hand, the space of mobile phones is limited, and the number of antennas is also limited. That is, many frequency bands share one antenna. Therefore, the setting of the transmission path is related to the radio frequency switching or combining device in the terminal, and each device affects the transmission performance of the transmission path and the entire communication system. Some terminals control the transmission path in a fixed and single radio frequency transmission path method. Since the transmission path is fixed, the resource loss in the transmission path is also fixed. During the transmission process, even if there is a transmission path with less loss, the terminal cannot switch.

[0005] Therefore, a solution is required to solve how the terminal realizes an adaptive selection of the transmission path and reduces the resource loss of the communication system.

Summary of the Invention

Problems to be Solved by the Invention

[0006] The main objective of the embodiments of this application is to propose a method, apparatus, terminal, and storage medium for controlling a transmission path.

Means for Solving the Problem

[0007] To achieve the above objective, the embodiments of this application provide a method for controlling a transmission path. The method for controlling the transmission path includes: detecting the service requirements and / or network characteristics of the current terminal; matching a corresponding transmission path adjustment mode based on the currently detected service requirements and / or network characteristics; and adjusting the transmission path from the radio frequency chip to the antenna according to the matched transmission path adjustment mode. Here, the number of devices passed by the adjusted transmission path is less than that of the devices passed by the transmission path before adjustment, or the radio frequency conduction path and wiring after adjustment are shorter than those before adjustment, or the antenna coverage frequency band corresponding to the antenna path after adjustment is less than that corresponding to the antenna path before adjustment. The transmission path includes a radio frequency conduction path and an antenna path, and the antenna path is used for antenna selection.

[0008] To achieve the above object, an embodiment of the present application further provides a control device for a transmission path. The control device for the transmission path includes a detection module configured to detect the service demand and / or network characteristics of a current terminal, and a matching module configured to match a corresponding transmission path adjustment mode based on the currently detected service demand and / or network characteristics, and an adjustment module configured to adjust the transmission path from a radio frequency chip to an antenna according to the matched transmission path adjustment mode. Here, the number of devices through which the adjusted transmission path passes is less than the number of devices through which the transmission path before adjustment passes, or the radio frequency conduction path and wiring after adjustment are shorter than the radio frequency conduction path and wiring before adjustment, or the antenna coverage frequency band corresponding to the antenna path after adjustment is less than the antenna coverage frequency band corresponding to the antenna path before adjustment. The transmission path includes a radio frequency conduction path and an antenna path, and the antenna path is used for antenna selection.

[0009] To achieve the above object, an embodiment of the present application further provides a terminal. The terminal includes at least one processor and a memory communicably connected to the at least one processor. The memory stores instructions executable by the at least one processor, and when the instructions are executed by the at least one processor, the at least one processor can execute the above control method for the transmission path.

[0010] To achieve the above object, an embodiment of the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program that realizes the above control method for the transmission path when executed by a processor.

[0011] One or more embodiments are exemplarily illustrated by images in the corresponding accompanying drawings, and these exemplary descriptions do not constitute a limitation on the embodiments. Elements having the same reference numerals in the accompanying drawings indicate the same elements. Unless otherwise specified, the images in the drawings do not constitute a limitation on the proportion.

Brief Description of the Drawings

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Modes for Carrying Out the Invention

[0013] To clarify the objectives, technical solutions, and advantages of the embodiments of the present application, the following will describe each embodiment of the present application in detail in combination with the accompanying drawings. However, in each embodiment of the present application, many technical details are presented to help the reader better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions seeking protection of the present application can be realized. The division of the following embodiments is for the convenience of description and should not constitute any limitation to the specific embodiments of the present application. Each embodiment may be combined or cross-referenced with each other as long as there is no contradiction.

[0014] The embodiment of the present application relates to a method for controlling a transmission path. As shown in FIG. 1, this method includes step 101 of detecting the current service demand and / or network characteristics of the terminal, step 102 of matching a corresponding transmission path adjustment mode based on the currently detected service demand and / or network characteristics, step 103 of adjusting the transmission path from the radio frequency chip to the antenna according to the matched transmission path adjustment mode. The number of devices passed by the adjusted transmission path is less than the number of devices passed by the transmission path before adjustment, or the radio frequency conduction path and wiring after adjustment are shorter than the radio frequency conduction path and wiring before adjustment, or the antenna coverage frequency band corresponding to the antenna path after adjustment is less than the antenna coverage frequency band corresponding to the antenna path before adjustment. The transmission path includes a radio frequency conduction path and an antenna path, and the antenna path is used for antenna selection.

[0015] The control method of the transmission path in this embodiment is applied to wireless communication terminals such as mobile phones, tablets, and notebook computers. The functions of the terminals are becoming increasingly complex. For example, one mobile phone needs to simultaneously support most of the functions among cellular mobile communication, WIFI, Bluetooth (registered trademark), and Global Positioning System (abbreviated as "GPS"), so it is necessary to meet the demand for the frequency bands of 2G / 3G / 4G / 5G, and the covered frequency band is not uniform in the range of 600M to 6GHZ. In order to pursue a higher data transmission rate, it is also necessary to realize Multiple Input Multiple Output (abbreviated as "MIMO"), that is, multi-antenna and Carrier Aggregation (abbreviated as "CA") technology. The frequency band of a mobile phone is more than 30, and the number of antennas is more than 10. Each frequency band, for example, the B1 frequency band, is further divided into four MIMO channels: main, diversity, main MIMO, and diversity MIMO. Each channel can be further divided into 4 to 20 branch paths due to differences in physical devices. Therefore, there may be more than 20 radio frequency transmission paths for each frequency band.

[0016] In addition to the antenna path, the transmission path of the terminal further includes a radio frequency front-end module transmission path as shown in FIG. 2. The transmission path of terminal control in the present application refers to the transmission path in the radio frequency front-end module, from the radio frequency chip to the antenna or test point (test socket), and further includes the front-stage switch, middle-stage low-noise amplifier (abbreviated as "LNA"), rear-stage switch, antenna switch, etc. between them. Since many switches, filters, etc. are included in the transmission path, and at the same time, in order to meet the co-existing requirements such as carrier aggregation, some radio frequency switching or combining devices are required, such as 3P3T switches, DP4T switches, SPDT switches, NPNT (multi-pole multi-throw switches), diplexers, triplexers, and some extractors, power dividers, combiners, etc. Therefore, the loss becomes large, and many transmission paths are often not optimal in terms of radio frequency performance and data performance.

[0017] In some terminals, the transmission path is fixed and single, and when there is an abnormality in the path or other requirements, the path cannot be switched to the bypass mode. To realize the bypass mode of the transmission path, it can only be realized by newly providing a compatible circuit in the terminal and changing the component list. Therefore, in some usage scenarios where the resource loss of the transmission path is relatively large, the transmission path cannot be changed. At the same time, due to the large number of radio frequency channels and transmission paths, it is necessary to wire and arrange each channel and transmission path on a printed circuit board (abbreviated as "PCB") with limited area, not only to meet certain compatibility requirements, but also to meet certain isolation requirements, and to satisfy data throughput and user experience. As a result, there are many factors to be considered during the installation of the entire transmission path, and the installation process becomes complicated.

[0018] In this embodiment, based on the currently detected service requirements and / or network characteristics of the terminal, the corresponding transmission path adjustment mode is matched, and the transmission path from the radio frequency chip to the antenna is adjusted according to the matched transmission path adjustment mode. Every time the transmission path passes through one device, there will inevitably be a loss of system resources. On the other hand, the number of devices passed by the adjusted transmission path is less than the number of devices passed by the transmission path before adjustment, or the radio frequency conduction path and wiring after adjustment are shorter than the radio frequency conduction path and wiring before adjustment, or the antenna coverage frequency band corresponding to the antenna path after adjustment is less than the antenna coverage frequency band corresponding to the antenna path before adjustment. The transmission path includes a radio frequency conduction path and an antenna path, and the antenna path is used for antenna selection. Therefore, the performance of the adjusted transmission path is better than that of the transmission path before adjustment. Accordingly, the resource loss of the adjusted transmission path is smaller than the resource loss of the transmission path before adjustment. Thereby, the resource loss of the communication system is reduced.

[0019] Hereinafter, the details of the realization of the control method of the transmission path in this embodiment will be specifically described. However, the following content is for facilitating the understanding of the provided realization details and is not an essential condition for implementing this case.

[0020] In step 101, the terminal detects the current service requirements and / or network characteristics of the terminal.

[0021] Specifically, for the detection of network characteristics, the terminal uses an antenna to receive communication signals from the base station. After processing such as filtering and signal amplification, the signals enter the radio frequency main chip for frequency conversion and are then transmitted to the baseband processing chip. The baseband chip performs analog-to-digital conversion processing on the signals and converts them into corresponding network parameters such as network type (e.g., GSM, WCDMA (registered trademark), CDMA, LTE, NR, etc.), cell information (e.g., Cell info, PCI, etc.), frequency band (e.g., B1 / B3 / N78 / N41, etc.), channel number (Arfcn) or center frequency point, and signal quality parameters such as signal strength (e.g., RSSI, RSRP), signal-to-noise ratio SNR, channel quality indication CQI, uplink transmission power, etc. Furthermore, it includes scheduling parameters such as the number of DLRI data streams, uplink MCS, downlink MCS, and SRS polling mechanism. The terminal can obtain the difference in network signal quality in different transmission paths by collecting and comparing these network parameters, and thereby perform corresponding transmission path control. The terminal configures keywords corresponding to the network parameters into the corresponding log LOG mask set, collects, filters, and aggregates them through the system, obtains the key parameters, and then reports them.

[0022] In one example, the network characteristics include the network environment and / or the path loss of the transmission path. Here, the network environment includes one or any combination of the operating frequency band, operating frequency point, radio signal strength, uplink and downlink call quality, data throughput, and bit error rate, which are network parameter indicators.

[0023] In this embodiment, the terminal can adapt the adjusted transmission path to the network situation of the terminal and meet the actual usage needs of the terminal by controlling the transmission path based on the instructions of various network parameters and any combination thereof.

[0024] Regarding the detection of service requirements, the terminal uses the baseband chip to collect the operating mode of the radio frequency chip and detect the wireless parameter LOG during the current communication of the terminal, so as to extract key parameters and information, such as air interface LOG information and service report information.

[0025] In one example, the service requirements include any one or any combination of diversity mode, multiple input multiple output MIMO mode, multi-carrier aggregation CA mode, non-CA mode, lower antenna mode, non-lower antenna mode, stand-alone network configuration SA mode, non-stand-alone network configuration NSA mode, harmonic intermodulation interference present mode, harmonic intermodulation interference free mode, head hand mode, free space mode, coexistence present mode, and coexistence free mode. Here, as the above-mentioned requirement information, specifically, there is air interface LOG information and service report information, such as the received RX MIMO mode, specifically modes such as RX1, RX2, RX3, RX4, etc. The CA and non-CA modes specifically include uplink CA, downlink CA, 2CA, 3CA, 4CA, 5CA, etc. The lower antenna mode and non-lower antenna mode specifically include the up and down antenna ASDIV switching mode and non-switching mode, the harmonic intermodulation interference present mode and the harmonic intermodulation interference free mode, the head hand mode and the free space mode specifically include call modes such as free space, left and right head hand, etc. The coexistence present mode and the coexistence free mode specifically include coexistence modes such as LTE, NR, WIFI, etc.

[0026] In this embodiment, by controlling the transmission path based on various service requirements and any combination thereof, the adjusted transmission path can be adapted to the service requirements of the terminal and meet the actual usage needs of the terminal.

[0027] In step 102, the terminal matches the corresponding transmission path adjustment mode based on the currently detected service demand and / or network characteristics. Specifically, when the transmission path control method of this embodiment is used, the terminal collects the LOG parameter set in real time, analyzes and compares the parameters of different transmission paths at different times. Based on the results of detection and comparison, the terminal calculates from the current network quality, service demand, system insertion loss of each path, interference detection situation, and usage status of the upper and lower antennas, and matches and selects the optimal adjustment pattern and parameters.

[0028] For example, taking the RX MIMO reception service as an example, as shown in FIG. 3, there are very many transmission paths for 4G and 5G. If the path losses of different transmission paths are different and the performance differences of different transmission paths are large, the channel balance will deteriorate. If the performance of the four channels of a 4*4 MIMO is unbalanced, the levels of the received RSRP signals will be inconsistent. In serious cases, it will directly affect the MIMO throughput performance in dual-stream or quad-stream, that is, the modulation performance is low, the bit error rate is high, and further the throughput rate is low. Thus, when it is detected that the current terminal is in a 4*4 MIMO service and the 4-way RSRP is inconsistent, the terminal performs the corresponding transmission path adjustment mode, reducing the loss of the one with a large loss or increasing the loss of the one with a small loss. Thereby, the losses of each path can be equalized, the received levels are also made consistent, and the purpose of improving the data throughput performance of the terminal can be achieved.

[0029] In one example, the terminal queries the transmission path adjustment mode corresponding to the currently detected service demand and / or network characteristics in the pre-set mapping relationship to obtain the matched transmission path adjustment mode. Here, the mapping relationship is used to store the correspondence between the service demand and / or network characteristics and the transmission path adjustment mode.

[0030] Specifically, the terminal may calculate the system loss of the required transmission path in advance and obtain the transmission path adjustment mode set accordingly. Here, the terminal may preset the transmission path adjustment mode through two calculation methods. The first one is to construct a model with the single loss of each radio frequency path, device, and path (including via holes), count which current landmark device is being passed through, and add the losses of each unit to obtain the system loss. As shown in FIG. 4, the B3 frequency band is transmitted from the transceiver chip and reaches the target test socket via the LNA, the first-stage switch, the surface acoustic wave device (abbreviated as "SAW"), the SP2T switch, the diplexer, the DPDT, and the 3P3T switch. Adding the losses of the intermediate wiring and via holes to the Loss of these device units results in the overall system loss. Since the losses of each unit element in the system loss are known on the premise that the frequency points have been confirmed and the board material and line width have been determined, if the device being passed through is detected, the loss value of the entire transmission path can be calculated. The second method is that the terminal conducts research and development on the automatic gain control (AGC) level scan, the reference signal receiving power (RSRP) self-scan, or the signaling test scan to test the system loss of all transmission paths. For example, when passing through path 1 from chip port A to test point B, the system loss insertion loss is S1ab; when passing through path 2, the system loss insertion loss is S2ab; when passing through path 3, the system loss insertion loss is S3ab; when passing through path 4, the system loss insertion loss is S4ab. These four insertion loss values are written and stored in the terminal for future calls.

[0031] In this embodiment, among the preset mapping relationships, inquire about the transmission path adjustment mode corresponding to the currently detected service demand and / or network feature to obtain the matched transmission path adjustment mode. The mapping relationship is used to store the correspondence between the service demand and / or network feature and the transmission path adjustment mode, that is, by mapping the service demand and / or network feature to the transmission path adjustment mode and storing it, when the terminal actually controls the transmission path, according to the current service demand and / or network feature, inquire about and obtain the matched transmission path adjustment mode. Thereby, the adaptive transmission path selection of the terminal can be realized, and the resource loss of the communication system can be reduced.

[0032] In step 103, the terminal adjusts the transmission path from the radio frequency chip to the antenna according to the matched transmission path adjustment mode. Here, the number of devices passed by the adjusted transmission path is less than the number of devices passed by the transmission path before adjustment, or the radio frequency conduction path and wiring after adjustment are shorter than the radio frequency conduction path and wiring before adjustment, or the antenna coverage frequency band corresponding to the antenna path after adjustment is less than the antenna coverage frequency band corresponding to the antenna path before adjustment. The transmission path includes a radio frequency conduction path and an antenna path, and the antenna path is used for antenna selection. That is, the performance of the adjusted transmission path is better than that of the transmission path before adjustment.

[0033] Specifically, the adjustment of the transmission path by the terminal may be the adjustment of any one of the passive device, active device, line, antenna and any combination thereof.

[0034] The adjustment of passive devices may be the adjustment of any one or more of devices such as SAW and LTCC filters, switches (SPDT, DPDT, SP3T, SPNT, 3P3T, 4T4T, NPNT, etc.), nplexer frequency dividers (Diplexer, Triplexer, mulplexer), extractors, traps, duplexers, triplexers, couplers, etc.

[0035] The lines of the conventional transmission path need to pass through many intermediate devices. At the same time, due to the limitation of the wiring space of the PCB, there may be holes drilled through the layers. In addition to the increase in device loss, the loss caused by long wiring, small holes, and large holes is also large. In this embodiment, by using the line adjustment, according to the current network situation and service demand, by selecting the transmission line, the loss caused by wiring and punch holes is reduced. For example, as shown in FIG. 5, when the terminal is currently in the head-held mode, the antenna at the bottom is held in the hand, so its performance is relatively poor, and it is necessary to switch the NR transmission antenna from the bottom to the top. On the other hand, the transmission signal comes out from the transceiver chip of the radio frequency integrated circuit (RFIC), passes through the amplification by the PA power amplifier, the radio frequency front-end switch, and the lower front-stage antenna switch, and further passes through long wiring and punch holes (that is, Line1, Via1, Line2, Via2, Line3 in the figure), reaches the upper antenna switch, and finally reaches the test point and antenna at the top. The overall loss is very large, that is, the conduction power drops significantly. For example, the power at the bottom is 24 dBm, but the top only has 22 dBm. In this case, that is, the efficiency advantage of the top antenna is offset by the conduction power. In this case, by calling the line adjustment function and switching the switch, bypass the switch device corresponding to other purposes that it passes through, and reach the target test socket from the tip of the PA module via the RFLESS line Line4. Thereby, the loss caused by long wiring and punch holes is reduced, the purpose of increasing the maximum transmission power at the top is achieved, and the uplink communication quality of NR is further optimized.

[0036] RFLESS is a new electronic circuit design concept proposed in this embodiment, which achieves the idea of targeted electronic circuit design reconstruction by adaptively bypassing or omitting some circuits, modules, devices, and wirings in the radio frequency link in real time according to the requirements of services, performance, scenarios, interference, antennas, CA, or MIMO. By mainly designing compatible electronic circuits such as chips, modules, and discrete circuits or radio frequency driver software, the radio frequency transmission and reception signals are switched to the RFLESS transmission path to reduce the path loss and the insertion loss of the devices, increase the transmission power, improve the reception sensitivity, and further achieve the purpose of improving the call quality and data throughput performance. Here, the so-called RFLESS includes passive device RFLESS, radio frequency front-end module RFLESS, on-chip RFLESS, external RFLESS of the front-end module, RFLESS such as SAW and LTCC filters, RFLESS of switch devices (SPDT, DPDT, SP3T, SPNT, 3P3T, 4T4T, NPNT), RFLESS of nplexer frequency dividers (Diplexer, Triplexer, mulplexer), RFLESS of extractors, traps, RFLESS of radio frequency wiring paths (microstrip line / strip line), etc.

[0037] In this embodiment, by adjusting passive devices, active devices, lines, antennas, and any combination thereof, it is possible to adjust the transmission path so that the resource loss of the adjusted transmission path is smaller than that of the transmission path before adjustment. Thereby, the resource loss of the communication system can be reduced.

[0038] In one example, when the adjustment to the transmission path from the radio frequency chip to the antenna includes multiple adjustment types, the terminal may obtain the priority of each adjustment type based on the matched transmission path adjustment mode, and preferentially adopt the adjustment type with the highest priority to adjust the transmission path. If the performance of the adjusted transmission path does not meet the preset requirements, the transmission path may be adjusted using the adjustment type with the next priority in descending order of priority until the performance of the adjusted transmission path meets the preset requirements.

[0039] In this embodiment, by setting the adjustment pattern and the priority of the adjustment type corresponding to the transmission path adjustment mode, when adjusting the transmission path, the adjustment type with the highest priority is preferentially adopted to adjust the transmission path. If the performance of the adjusted transmission path does not meet the preset requirements, the transmission path is adjusted using the adjustment type with the next priority in descending order of priority until the performance of the adjusted transmission path meets the preset requirements. The priority of different adjustment types can be customized according to different requirements, and when the preferential adjustment type is not appropriate, the adjustment types can be switched in order of priority. Thereby, the adjustment of the transmission path can be completed as soon as possible, the time taken for adjustment can be shortened, and the resource loss in the adjustment process can be reduced.

[0040] In one example, the terminal may call a preset radio frequency driver according to the matched transmission path adjustment mode. Here, the radio frequency driver is configured to adjust the transmission path by the set adjustment method. Inside the terminal, the default radio frequency driver is preset, and the control terminal is configured to transmit using the default transmission path and pass through each radio frequency front-end device. However, these paths are often not set separately according to different usage scenarios of the terminal, and are not suitable for scenarios with large losses and weak radio waves of mobile phones, or often cannot meet the requirements of corresponding service scenarios. In this embodiment, by setting the radio frequency driver to configure a dedicated transmission path to be conducted, it is possible to control, through the program unit, to transmit a specific path channel to the corresponding signal. For example, CA service traffic transmits on the CA channel, non-CA service traffic transmits on the non-CA channel, interference-free service traffic transmits on the SAWLESS channel, and interference-containing service traffic transmits on the SAW channel.

[0041] Regarding the antenna of the terminal, most of the conventional radio frequency antennas integrate many frequency bands. For example, the combination of NR and LTE, the combination of NR and WIFI, the combination of NR, LTE and GPS. These combinations are coupled to the antenna by a combiner, but the combiner itself has certain losses. In addition, in order to correspond to the efficiency of each system of NR, LTE, WIFI, and GPS, or in order to correspond to the efficiency of single LTE and NR multi-frequency bands, the performance at each resonance frequency point is not the highest. In this embodiment, three RFLESS antenna adjustment operation modes are provided. In the case of the single network RFLESS antenna mode, which is Method 1, it mainly targets the scenario of a multi-coupled antenna. When the network and service module detect that the current service is in the SA NR only mode, and if there is no need to use LTE, WIFI, Bluetooth and GPS at this time, the control module first controls the combiner to bypass to the specified NR path, and at the same time controls the parasitic length and coupling point of the antenna to be within the NR only mode range. In the case of the single frequency RFLESS antenna mode, which is Method 2, it mainly targets the scenario where there is no coupling in a single system but there are multiple frequency bands. When the network and service module detect that the current service is in the B41 mode of China Mobile carrier, and detect that there is no possibility of roaming of the surrounding cells or past cells to other LTE frequency bands, that is, only B41 is used during this time and there is no need to use frequency bands such as LTE B1, B3, B5, B8, the control module controls the parasitic length and coupling point of the antenna to be within the B41 independent frequency band, and thus resonates at a specific frequency point, so as to maximize the antenna efficiency at the specific frequency point. In the case of the single point RFLESS antenna mode, which is Method 3, it mainly targets the wide bandwidth NR frequency band. For example, the frequency spans are 3300 - 3800 MHz, 3300 - 4200 MHz and 4400 - 5000 MHz respectively, for the frequency bands N77 / N78 / N79.When it is detected that the terminal is operating at a specific frequency point where the current terminal is located, or at a certain fixed channel such as the frequency point of N78, 3700 MHz, if it is detected that the operating bandwidth of the current frequency band is 100M, the resonance frequency point and operating bandwidth of the antenna may be reduced within the range of the currently specified frequency point and bandwidth. Thereby, the antenna efficiency and standing wave ratio at the current operating channel and frequency point are improved. That is, the operating frequency point of the antenna is locked to the single-point operating mode instead of the broadband operating mode. In other words, the frequency points covered and supported by the current antenna do not need to cover the entire frequency band range, but are tuned to the current frequency band, specifically the channel frequency point where it is operating, and the matching form of the antenna is changed.

[0042] In this embodiment, the terminal calls a preset radio frequency driver according to the matched transmission path adjustment mode. Since the radio frequency driver is configured to adjust the transmission path by the set adjustment method, different radio frequency drivers can be customized for different transmission path adjustment modes according to different demands, so as to realize the adaptive transmission path selection of the terminal. The solution of this embodiment may match the corresponding transmission path adjustment mode based on the currently detected service demand and / or network characteristics, and adjust the transmission path from the radio frequency chip to the antenna according to the matched transmission path adjustment mode. Every time the transmission path passes through one device, there will inevitably be a system resource loss. On the other hand, the number of devices passed by the adjusted transmission path is less than the number of devices passed by the transmission path before adjustment, or the radio frequency conduction path and wiring after adjustment are shorter than the radio frequency conduction path and wiring before adjustment, or the antenna coverage frequency band corresponding to the antenna path after adjustment is less than the antenna coverage frequency band corresponding to the antenna path before adjustment. The transmission path includes a radio frequency conduction path and an antenna path, and the antenna path is used for antenna selection. Note that since the performance of the adjusted transmission path is higher than that of the transmission path before adjustment, the resource loss of the adjusted transmission path is smaller than that of the transmission path before adjustment, and the resource loss of the communication system is reduced.

[0043] The embodiment of the present application further relates to a control device for a transmission path. As shown in FIG. 6, this device includes a detection module 601 configured to detect the current service demand and / or network characteristics of the terminal, a matching module 602 configured to match the corresponding transmission path adjustment mode based on the currently detected service demand and / or network characteristics, and an adjustment module 603 configured to adjust the transmission path from the radio frequency chip to the antenna according to the matched transmission path adjustment mode. Here, the number of devices through which the adjusted transmission path passes is less than the number of devices through which the transmission path before adjustment passes, or the radio frequency conduction path and wiring after adjustment are shorter than the radio frequency conduction path and wiring before adjustment, or the antenna cover frequency band corresponding to the antenna path after adjustment is less than the antenna cover frequency band corresponding to the antenna path before adjustment. The transmission path includes a radio frequency conduction path and an antenna path, and the antenna path is used for antenna selection. That is, the performance of the transmission path after adjustment is higher than the performance of the transmission path before adjustment.

[0044] In one example, the adjustment to the transmission path from the radio frequency chip to the antenna includes one type of adjustment or any combination thereof among the adjustment of passive devices, the adjustment of active devices, the line adjustment, and the antenna adjustment.

[0045] In one example, when the adjustment to the transmission path from the radio frequency chip to the antenna includes multiple types of adjustments, the adjustment module 603 further obtains the priority of each type of adjustment based on the matched transmission path adjustment mode, preferentially adopts the adjustment type with the highest priority to adjust the transmission path. If the performance of the adjusted transmission path does not meet the preset requirements, the transmission path is adjusted using the adjustment type with the next highest priority in descending order of priority until the performance of the adjusted transmission path meets the preset requirements.

[0046] In one example, the adjustment module 603 is further configured to call a preset radio frequency driver according to the matched transmission path adjustment mode. Here, the radio frequency driver is configured to adjust the transmission path by the set adjustment method.

[0047] In one example, the matching module 602 is further configured to query a transmission path adjustment mode corresponding to the currently detected service requirement and / or network feature in a preset mapping relationship, so as to obtain the matched transmission path adjustment mode. Here, the mapping relationship is used to store the correspondence between the service requirement and / or network feature and the transmission path adjustment mode.

[0048] In one example, the service requirement includes one or any combination of a diversity mode, a multi-input multi-output (MIMO) mode, a multi-carrier aggregation (CA) mode, a non-CA mode, a lower antenna mode, a non-lower antenna mode, a stand-alone network configuration (SA) mode, a non-stand-alone network configuration (NSA) mode, a mode with harmonic intermodulation interference, a mode without harmonic intermodulation interference, a head hand mode, a free space mode, a coexistence mode, and a non-coexistence mode.

[0049] In one example, the network feature includes a network environment and / or a path loss of the transmission path. Here, the network environment includes one or any combination of an operating frequency band, an operating frequency point, a radio signal strength, uplink and downlink call qualities, a data throughput, and a bit error rate, which are network parameter indicators.

[0050] In one example, as shown in FIG. 7, the detection module 601 includes a network detection unit L1, a service detection unit L2, and a path loss calculation unit L3. The matching module 602 includes an RFLESS pattern matching unit L4. The adjustment module 603 includes a parameter storage unit L5, an RFESS program unit L6, an adaptive control unit L7, an RFLESS passive unit L8, an RFLESS active unit L9, an RFLESS line unit L10, and an RFLESS antenna unit L11.

[0051] Among them, the network detection unit L1 and the pattern matching unit L4 are interconnected and configured to detect the network environment of the terminal (including network parameter indicators such as operating frequency band, frequency point, wireless signal strength, uplink and downlink call quality, data throughput, bit error rate, etc.). For example, when the N78 frequency band of the 5G network transmits through the normal path A, the current signal strength is -90, there are only 3 data stream transmissions for 4*4mimo, and the downlink MCS is at most 21. On the other hand, when transmitting through the RFLESS path B, the corresponding signal strength is -85, there are only 4 data stream transmissions for 4*4mimo, and the downlink MCS is at most 27. Therefore, the RFLESS path B is relatively better, indicating that the terminal should switch to the B path for operation.

[0052] The service detection unit L2 is interconnected with the pattern matching unit L4 and is configured to detect the service requirements of the terminal (main diversity mode or mimo mode, CA and non-CA modes, lower antenna mode and non-lower antenna mode, NSA mode and SA mode, harmonic intermodulation interference present mode and harmonic intermodulation interference free mode, head hand mode and free space mode, coexistence present mode and coexistence free mode, etc.). The path loss calculation unit L3 is interconnected with the pattern matching unit L4 and is configured to calculate the system loss of the required communication path. The pattern matching unit L4 is interconnected with the adaptive control unit L7 and is configured to match and select an appropriate RFLESS adjustment pattern and method based on the above-described detection and calculation results. The parameter storage unit L5 is interconnected with the adaptive control unit L7 and is configured to store each RFLESS model parameter, test parameter, calibration parameter, and control parameter (for example, store the loss parameters of each device, chip, module, wiring, punch hole, etc.). Further, the parameter storage unit L5 is further configured to store the operation parameters for controlling each unit to activate and deactivate RFLESS, and is configured to store the RFLESS calibration parameters.

[0053] The RFLESS program unit L6 is interconnected with the adaptive control unit L7 and is configured to call the RFLESS radio frequency driver. For example, taking the CA combination service of LTE B1 - B3 - B7 - B20 as an example, as shown in Figure 8, the devices through which non - CA combination, 2CA combination, 3CA combination, and 4CA combination pass are different. The non - CA combination (B1) does not need to pass through a two - pole or multi - pole switch, dipLexer or tripLexer. The 2CA combination (B1_B3) needs to pass through one two - pole switch. The 3CA (B1_B3_B7) combination needs to pass through one two - pole switch and one dipLexer in addition. The 4CA combination (B1_B3_B7_B20) needs to pass through one two - pole switch and one tripLexer. The service demand unit may detect the current CA combination and adaptively call the corresponding RFC program according to different service demands. Thereby, the RFLESS device adjustment under different CA combinations can be controlled.

[0054] The adaptive control unit L7 is interconnected with each RFLESS adjustment unit and is configured to perform adaptive adjustment control of the RFLESS algorithm and hardware (including the adjustment control of the RFLESS passive unit, the adjustment control of the RFLESS active unit, the adjustment control of the RFLESS path unit, and the adjustment control of the RFLESS antenna unit) according to the current network situation and service demand. As shown in Figure 9, the adaptive control program performs adaptive RFLESS adjustment control with a narrowed - down purpose based on the following service demand and network characteristics until the wireless call performance, uplink and downlink throughput, bit error rate, etc. achieve the target requirements.

[0055] In the actual operation process, the adaptive control program is further responsible for the selection of which specific type of RFLESS adjustment measures to choose. As described above, there are four types of adjustment means: passive, active, path, and antenna. In actual applications, it is associated with the network parameters detected by the current network detection unit and the service parameters detected by the service detection unit, compares the change values of the parameters before and after the change, and determines which part of the above four parts plays a major role. If it is related to the insertion loss of the front end, the passive adjustment unit is called preferentially. If it is related to CA and the bypass circuit within the unit, the active unit is called preferentially. If it is related to up / down switching, the path adjustment unit is called preferentially. If it is related to antenna performance, the antenna adjustment unit is called preferentially. When the relevant parameters are not clear or there are relatively many of them, until the network performance requirements are met, the above four adjustments can be carried out one by one, or combined two by two, or even combined more than that for use.

[0056] The RFLESS passive adjustment unit L8 is interconnected with the adaptive control unit L7 and is configured to adjust and control the RFLESS of the passive unit based on the current network situation and service requirements. The RFLESS active adjustment unit L9 is interconnected with the adaptive control unit L7 and is configured to adjust and control the RFLESS of the active unit based on the current network situation and service requirements. The RFLESS line adjustment unit L10 is interconnected with the adaptive control unit L7 and is configured to adjust and control the RFLESS of the wiring line based on the current network situation and service requirements. The RFLESS antenna adjustment unit L11 is interconnected with the adaptive control unit L7 and is configured to adjust and control the RFLESS of the antenna unit based on the current network situation and service requirements.

[0057] This embodiment can solve the problem of low sensitivity in the configuration of the conventional radio frequency channel transmission path through the improvement of the RFLESS circuit and algorithm of the terminal, can reduce the path loss of the system, can improve the equality of each path, enhance the signal strength, improve the performance of the antenna, and thus improve the performance of the user's communication and data service, and can improve the call rate, call interruption rate and data service of the handheld device.

[0058] In one example, the terminal may perform RFLESS control on SRS. Terminals N41 and N78 are 4*4 MIMO and have four radio frequency transmission paths, namely TX, DRX, PRX-MIMO, and DRX-MIMO for each frequency band. N41 corresponds to four antennas A1, A2, A3, and A4 respectively, and N78 corresponds to four antennas A5, A6, A7, and A8 respectively. In electronic circuit design, an interoperable design is required between the antenna paths of N41 and N78, which is realized by an antenna switch, such as SP2T, 3P3T, 4P4T, etc. When the performance of the N78 antenna is poor or the N78 antenna is affected, it may be switched to the corresponding path antenna of N41.

[0059] In one example, the terminal may perform non-interfering RFLESS control. When LTE B3 is used as the ENDC anchor, since the second harmonic of B3 is at the corresponding channel frequency point in the N78 frequency band, the reception sensitivity of N78 deteriorates. The higher the isolation between N78 and LTE B3, the smaller the influence of harmonics and intermodulation under dual connection. For example, if the number of paths of LTE B3 is 7 in total, namely L1, L2, L3, L4, L5, L6, L7, the number of TXs of B3 is 2, namely G1 and G2, and the number of PRXs of N78 is 4 in total, namely NP1, NP2, NP3, NP4, the path interference unit calculates for all the above combinations and selects the combination path with the minimum interference as the final ENDC operation path.

[0060] In one example, the terminal may perform equal-path RFLESS control. When N78 operates in 4x4 MIMO with high throughput, the signal strengths of the four channels must be relatively equal; otherwise, the throughput performance will decrease due to inequality. For example, the paths of NR N78 are a total of seven paths, namely M1, M2, M3, M4, M5, M6, and M7, and the detected values of the corresponding received signal strengths RSRP or RSSI are R1, R1, R3, R4, R5, R6, and R7 respectively. If the strengths of the original default paths are R1, R2, R3, and R4 and are relatively unequal, it may be switched to more equal paths R1, R3, R5, and R7. Thereby, the equality and throughput of each channel can be improved.

[0061] This embodiment provides a 5G terminal device with RFLESS. This device uses a service and interference detection algorithm to calculate the path loss from the chip VCO to each test socket, accurately detect the loss of each path, and further collect received signal strength values, signal equality of each-way MIMO, interference, etc., so as to select the optimal internal or external radio frequency path. Also, according to the current switching status of the upper and lower antennas, the left and right head hands, and the grip posture status, by selecting the RFLESS transmission path in real time, the terminal can always be in the optimal radio frequency and antenna transmission path with low loss and high gain, thereby improving the user's call quality and data throughput performance.

[0062] The embodiment of the present application further relates to a terminal. As shown in FIG. 10, the terminal includes at least one processor 1001 and a memory 1002 communicably connected to at least one processor. The memory 1002 stores instructions executable by at least one processor 1001, and the instructions are executed by at least one processor 1001 for the transmission path control method of any one of the above embodiments.

[0063] Here, the memory 1002 and the processor 1001 are connected in a bus system. The bus may include any number of interconnected buses and bridges. Through the bus, various circuits of one or more processors 1001 and the memory 1002 are connected together. The bus may also connect various other circuits such as peripheral devices, voltage stabilizers, and power management circuits together, but since these are well-known in the art, they will not be further described in this text. The bus interface provides an interface between the bus and the transceiver. The transceiver may be a single element or multiple elements such as multiple receivers and transmitters, and provides means for communicating with various other devices on the transmission medium. The data processed by the processor 1001 is transmitted on the wireless medium via the antenna. In some embodiments, the antenna further receives information and transmits the information to the processor 1001.

[0064] In addition to managing the bus and performing normal processing, the processor 1001 may further provide various functions including timing, peripheral interface, voltage regulation, power management, and other control functions. On the other hand, the memory 1002 may be configured to store information used when the processor executes operations.

[0065] The embodiments of the present application relate to a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the above method embodiments are realized.

[0066] That is, implementing all or part of the steps in the method of the above embodiments can be realized by instructing related hardware by a program. This program is stored in a storage medium and includes several instructions for causing an apparatus (which may be a one-chip computer, a chip, etc.) or a processor to execute all or part of the steps of the method of each embodiment of the present application. On the other hand, the above storage medium includes various media capable of storing program codes, such as a USB memory, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

Claims

1. A method for controlling a transmission path, comprising: detecting a service demand and / or network characteristics of a current terminal, wherein the service demand includes at least one of a diversity mode, or a multi-input multi-output (MIMO) mode, or a multi-carrier aggregation (CA) mode, or a non-CA mode, or a lower antenna mode, or a non-lower antenna mode, or an independent network configuration (SA) mode, or a non-independent network configuration (NSA) mode, or a mode with harmonic intermodulation interference, or a mode without harmonic intermodulation interference, or a head hand mode, or a free space mode, or a mode with coexistence of LTE, NR and WiFi, or a mode without coexistence of LTE, NR and WiFi; and the network characteristics include a network environment and / or a path loss of the transmission path, and the network environment includes at least one network parameter index of an operating frequency band, or an operating frequency point, or a radio signal strength, or uplink and downlink call qualities, or a data throughput, or a bit error rate; selecting a corresponding transmission path adjustment mode based on the currently detected service demand and / or network characteristics; adjusting a transmission path from a radio frequency chip to an antenna according to the selected transmission path adjustment mode; wherein the number of devices passed by the adjusted transmission path is less than the number of devices passed by the transmission path before adjustment, or the radio frequency conduction path and wiring after adjustment are shorter than the radio frequency conduction path and wiring before adjustment, or the antenna coverage frequency band corresponding to the antenna path after adjustment is less than the antenna coverage frequency band corresponding to the antenna path before adjustment; the transmission path includes the radio frequency conduction path and the antenna path, and the antenna path is used for antenna selection; the adjustment to the transmission path from the radio frequency chip to the antenna is an adjustment of the number of passive devices, or an adjustment of the number of active devices, or an adjustment of the radio frequency conduction path, or an adjustment of the antenna coverage frequency band, including at least one adjustment type of; the step of adjusting a transmission path from a radio frequency chip to an antenna according to the selected transmission path adjustment mode is When the adjustment of the transmission path from the radio frequency chip to the antenna includes multiple adjustment types, based on the selected transmission path adjustment mode, obtaining the priority of each adjustment type; Prioritizing the adjustment type with the highest priority and adjusting the transmission path; When the performance of the adjusted transmission path does not meet the preset requirements, adjusting the transmission path using the next-highest-priority adjustment type in descending order of priority until the performance of the adjusted transmission path meets the preset requirements; A transmission path control method including the above steps.

2. According to the matched transmission path adjustment mode, the step of adjusting the transmission path from the radio frequency chip to the antenna includes: Calling a preset radio frequency driver according to the selected transmission path adjustment mode; The radio frequency driver is configured to adjust the transmission path by a preset adjustment method. The transmission path control method according to claim 1.

3. Based on the currently detected service demand and / or network characteristics, the step of selecting the corresponding transmission path adjustment mode includes: Querying the transmission path adjustment mode corresponding to the currently detected service demand and / or network characteristics in a preset mapping relationship to obtain the selected transmission path adjustment mode; The mapping relationship is used to store the correspondence between service demand and / or network characteristics and the transmission path adjustment mode. The transmission path control method according to claim 1.

4. A transmission path control device, A detection module configured to detect the current service requirements and / or network characteristics of a terminal, wherein the service requirements include at least one of a diversity mode, or a multi-input multi-output (MIMO) mode, or a multi-carrier aggregation (CA) mode, or a non-CA mode, or a lower antenna mode, or a non-lower antenna mode, or an independent network configuration (SA) mode, or a non-independent network configuration (NSA) mode, or a mode with harmonic intermodulation interference, or a mode without harmonic intermodulation interference, or a head hand mode, or a free space mode, or a mode with coexistence of LTE, NR and WIFI, or a mode without coexistence of LTE, NR and WIFI, and the network characteristics include a network environment and / or path loss of a transmission path, and the network environment includes at least one network parameter index of an operating frequency band, or an operating frequency point, or a radio signal strength, or uplink and downlink call quality, or data throughput, or bit error rate, and a detection module; A matching module configured to select a corresponding transmission path adjustment mode based on the currently detected service requirements and / or network characteristics; An adjustment module configured to adjust the transmission path from a radio frequency chip to an antenna according to the selected transmission path adjustment mode, and includes: The number of devices passed by the adjusted transmission path is less than the number of devices passed by the transmission path before adjustment, or the radio frequency conduction path and wiring after adjustment are shorter than the radio frequency conduction path and wiring before adjustment, or the antenna coverage frequency band corresponding to the antenna path after adjustment is less than the antenna coverage frequency band corresponding to the antenna path before adjustment; The transmission path includes the radio frequency conduction path and the antenna path, and the antenna path is used for antenna selection; The adjustment to the transmission path from the radio frequency chip to the antenna is: Adjustment of the number of passive devices, or adjustment of the number of active devices, or adjustment of the radio frequency conduction path, or adjustment of the antenna coverage frequency band; including at least one adjustment type of: When the adjustment types for the transmission path from the radio frequency chip to the antenna include multiple adjustment types, the adjustment module obtains the priority of each adjustment type based on the selected transmission path adjustment mode, preferentially adopts the adjustment type with the highest priority to adjust the transmission path, and if the performance of the adjusted transmission path does not meet the preset requirements, the transmission path is adjusted using the adjustment type with the next highest priority in descending order of priority until the performance of the adjusted transmission path meets the preset requirements. A transmission path control device further configured as such.

5. At least one processor; A memory communicatively connected to the at least one processor, and Instructions executable by the at least one processor are stored in the memory, and when the instructions are executed by the at least one processor, the at least one processor can execute the transmission path control method according to any one of claims 1 to 3 Terminal.

6. A computer-readable storage medium storing a computer program, wherein When the computer program is executed by a processor, the transmission path control method according to any one of claims 1 to 3 is realized Computer-readable storage medium.

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