WO2019091138A1

WO2019091138A1 - Method and device for determining transmission parameter configuration information, and communication system

Info

Publication number: WO2019091138A1
Application number: PCT/CN2018/096097
Authority: WO
Inventors: 段欣; 王洁琼; 陈明; 邵喜斌
Original assignee: 京东方科技集团股份有限公司; 北京京东方显示技术有限公司
Priority date: 2017-11-10
Filing date: 2018-07-18
Publication date: 2019-05-16
Also published as: CN109787724A; CN109787724B

Abstract

Disclosed are a method and device for determining transmission parameter configuration information, and a communication system. The determining method comprises: receiving a time reference signal transmitted by a transmitting end via a first signal line, the time reference signal having multiple time intervals; while receiving the time reference signal, receiving a test signal transmitted by the transmitting end via a second signal line, where the received test signal comprises multiple sub-test signals corresponding one-to-one to the multiple time intervals, the multiple sub-test signals respectively are produced from the transmission of a same initial test signal between the transmitting end and a receiving end on the basis of different transmission parameter configuration information; determining, on the basis of each sub-test signal received, a target time interval corresponding to the sub-test signal of the highest transmission accuracy; and transmitting an identifier of target transmission parameter configuration information corresponding to the target time interval to the transmitting end via the first signal line. The present disclosure increases the efficiency and flexibility in determining transmission parameter configuration information.

Description

Method, device and communication system for determining transmission parameter configuration information

Related application

The present application claims the benefit of the Chinese Patent Application No. 201711105973.1, filed on Nov. 10, 2011, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present disclosure relates to the field of electronic technologies, and in particular, to a method, an apparatus, and a communication system for determining transmission parameter configuration information.

Background technique

The display device may generally include a display panel and a panel driving circuit for driving the display panel. The driving circuit may include a timing controller (T/CON for short), a gate driving circuit, and a source driving circuit. The gate driving circuit includes a plurality of gate driving chips, and the source driving circuit includes a plurality of source driver chips.

In the panel driving circuit, a point-to-point interface technology is generally used for signal transmission, and a one-to-one high-speed differential signal line is established between two chips of the panel driving circuit (for example, a timing controller and a source driving chip). For transmitting high speed differential signals.

In the panel driving process, especially when the signal in the high-speed differential signal line is transmitted over a long distance, the signal attenuation is very serious. It is usually necessary to set different transmission parameter configuration information for the source driver chips at different positions to avoid signal distortion transmitted in the high-speed differential signal lines. The transmission parameter configuration information may include configuration of parameters such as pre-emphasis parameters, signal swings, and the like.

At present, for different source driving chips, a resistor connected to the source driving chip is usually disposed on the panel driving circuit, and then debugging of transmission parameter configuration information is manually performed to obtain a target transmission adapted to the source driving chip. Parameter configuration information. However, the transmission parameter configuration information is less efficient and less flexible.

Summary of the invention

Embodiments of the present disclosure provide a method, apparatus, and communication system for determining transmission parameter configuration information.

In a first aspect, a method for determining transmission parameter configuration information in a receiving end is provided. The receiving end is respectively connected to the transmitting end through the first signal line and the second signal line. The signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. The method includes: receiving a time reference signal sent by the transmitting end by using the first signal line, where the time reference signal has multiple time intervals; and receiving the time reference signal, receiving the transmitting end a test signal sent by the second signal line, wherein the received test signal includes a plurality of sub-test signals corresponding to the plurality of time intervals, the plurality of sub-test signals being respectively the same initial test signal And transmitting, by the transmitting end and the receiving end, based on different transmission parameter configuration information transmissions; determining, according to each of the received sub-test signals, a sub-test signal with the highest transmission correct rate in the plurality of time intervals Corresponding target time interval; sending, by the first signal line, an identifier of the target transmission parameter configuration information corresponding to the target time interval to the transmitting end.

Optionally, determining a target time interval corresponding to the subtest signal with the highest transmission correct rate includes: comparing each of the sub test signals with the pre-stored initial test signal to determine each of the sub test signals The transmission correct rate is determined according to the transmission correctness rate of each of the subtest signals, and the target time interval corresponding to the subtest signal having the highest transmission correctness rate in the plurality of time intervals is determined.

Optionally, the different transmission parameter configuration information is obtained by performing different parameter configurations for the same group of transmission parameters. The same set of transmission parameters includes a terminating parameter. Receiving, by the transmitting end, the test signal sent by the second signal line includes: acquiring transmission parameter configuration information corresponding to each time interval; and in each time interval of the time reference signal, according to the acquired information The transmission parameter configuration information corresponding to the time interval is configured to configure the termination parameter to receive the test signal through the second signal line.

Optionally, the terminating parameter includes a signal equalization parameter and an impedance parameter.

Optionally, after the identifier of the target transmission parameter configuration information corresponding to the target time interval is sent to the sending end, the method further includes: receiving, by using the second signal line, the sending end The signal transmitted by the target transmission parameter configuration information.

Optionally, before the sending the identifier of the target transmission parameter configuration information corresponding to the target time interval to the sending end, the method further includes: querying a correspondence between the preset time interval and the identifier of the transmission parameter configuration information Obtaining an identifier of the target transmission parameter configuration information corresponding to the target time interval.

Optionally, the time reference signal is a clock signal.

Optionally, the second signal line is a differential signal line.

In a second aspect, a method for determining transmission parameter configuration information in a transmitting end is provided. The transmitting end is respectively connected to the receiving end through the first signal line and the second signal line. The signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. The method includes transmitting, by the first signal line, a time reference signal to the receiving end, the time reference signal having a plurality of time intervals; and transmitting the time reference signal while passing the second signal line Sending a test signal, where the test signal received by the receiving end includes a plurality of sub-test signals corresponding to the plurality of time intervals, the plurality of sub-test signals being respectively the same initial test signal at the transmitting end and Obtaining, by the receiving end, based on different transmission parameter configuration information transmission; obtaining, by using the first signal line, an identifier of target transmission parameter configuration information from the receiving end, where the target transmission parameter configuration information is a target time a transmission parameter configuration information corresponding to the interval, where the target time interval is corresponding to the subtest signal with the highest transmission accuracy rate in the plurality of time intervals determined by the receiving end based on each of the received subtest signals Time interval.

Optionally, the different transmission parameter configuration information is obtained by performing different parameter configurations for the same group of transmission parameters. The same set of transmission parameters includes an originating parameter. The transmitting the test signal by using the second signal line includes: acquiring transmission parameter configuration information corresponding to each time interval; and transmitting, according to the acquired time interval corresponding to the time interval, in each time interval of the time reference signal The parameter configuration information configures the originating parameter to transmit the test signal through the second signal line.

Optionally, the originating parameter includes a signal swing and a signal pre-emphasis parameter.

Optionally, after obtaining the identifier of the target transmission parameter configuration information from the receiving end, the method further includes: sending, by using the second signal line, a signal to the receiving end based on the target transmission parameter configuration information.

In a third aspect, an apparatus for determining transmission parameter configuration information at a receiving end is provided. The receiving end is respectively connected to the transmitting end through the first signal line and the second signal line. The signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. The device includes: a first receiving module, a second receiving module, a determining module, and a sending module. The first receiving module is configured to receive a time reference signal sent by the transmitting end by using the first signal line. The time reference signal has a plurality of time intervals. The second receiving module is configured to receive the test signal sent by the transmitting end through the second signal line while receiving the time reference signal. The received test signal includes a plurality of sub-test signals that are in one-to-one correspondence with the plurality of time intervals. The plurality of sub-test signals are respectively obtained by transmitting the same initial test signal between the transmitting end and the receiving end based on different transmission parameter configuration information. The determining module is configured to determine, according to each of the received subtest signals, a target time interval corresponding to the subtest signal having the highest transmission correctness rate in the plurality of time intervals. The sending module is configured to send, by using the first signal line, an identifier of the target transmission parameter configuration information corresponding to the target time interval to the sending end.

Optionally, the determining module is configured to compare each of the subtest signals with the pre-stored initial test signal to determine a transmission correctness rate of each of the subtest signals; The transmission correct rate of the subtest signal is determined, and the target time interval corresponding to the subtest signal having the highest transmission correctness rate in the plurality of time intervals is determined.

Optionally, the different transmission parameter configuration information is obtained by performing different parameter configurations for the same group of transmission parameters, where the same group of transmission parameters includes a terminating parameter.

The second receiving module is configured to: acquire transmission parameter configuration information corresponding to each time interval; and configure, according to the acquired transmission parameter configuration information corresponding to the time interval, in each time interval of the time reference signal The terminating parameter is to receive the test signal through the second signal line.

Optionally, the second receiving module is further configured to: after sending the identifier of the target transmission parameter configuration information corresponding to the target time interval to the sending end, receive the The transmitting end transmits a signal based on the target transmission parameter configuration information.

Optionally, the device further comprises a query module. The querying module is configured to query the correspondence between the preset time interval and the identifier of the transmission parameter configuration information, and obtain the target, before sending the identifier of the target transmission parameter configuration information corresponding to the target time interval to the sending end The identifier of the target transmission parameter configuration information corresponding to the time interval.

Optionally, the time reference signal is a clock signal.

Optionally, the second signal line is a differential signal line.

In a fourth aspect, an apparatus for determining transmission parameter configuration information at a transmitting end is provided. The transmitting end is respectively connected to the receiving end through the first signal line and the second signal line. The signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. The device includes: a first sending module, a second sending module, and a receiving module. The first transmitting module is configured to send a time reference signal to the receiving end by using the first signal line, where the time reference signal has multiple time intervals. And a second sending module, configured to send the test signal by using the second signal line while transmitting the time reference signal. The test signal received by the receiving end includes a plurality of sub-test signals that are in one-to-one correspondence with the plurality of time intervals. The plurality of sub-test signals are respectively obtained by transmitting the same initial test signal between the transmitting end and the receiving end based on different transmission parameter configuration information. The receiving module is configured to obtain, by using the first signal line, an identifier of the target transmission parameter configuration information from the receiving end. The target transmission parameter configuration information is transmission parameter configuration information corresponding to the target time interval. The target time interval is that the receiving end determines a time interval corresponding to the subtest signal with the highest transmission correctness rate in the plurality of time intervals based on each of the received subtest signals.

Optionally, the different transmission parameter configuration information is obtained by performing different parameter configurations for the same group of transmission parameters. The same set of transmission parameters includes an originating parameter. The second sending module is configured to: acquire transmission parameter configuration information corresponding to each time interval; and in each time interval of the time reference signal, according to the acquired transmission parameter configuration information corresponding to the time interval. The originating parameter is configured to transmit the test signal through the second signal line.

Optionally, the second sending module is further configured to: after obtaining the identifier of the target transmission parameter configuration information from the receiving end, send, by using the second signal line, the receiving parameter configuration information to the receiving end signal.

In a fifth aspect, a communication system is provided, including a transmitting end and a receiving end. The transmitting end is respectively connected to the receiving end through the first signal line and the second signal line. The signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. The receiving end comprises the apparatus according to the third aspect. The transmitting end comprises the apparatus according to the fourth aspect.

In a sixth aspect, an apparatus for determining transmission parameter configuration information in a receiving end is provided. The receiving end is respectively connected to the transmitting end through the first signal line and the second signal line. The signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. The apparatus includes a processor and a memory for storing executable instructions. The processor is configured to implement the method of the first aspect when the executable instructions are executed.

In a seventh aspect, an apparatus for determining transmission parameter configuration information in a transmitting end is provided. The transmitting end is respectively connected to the receiving end through the first signal line and the second signal line. The signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. The apparatus includes a processor and a memory for storing executable instructions. The processor is configured to implement the method of the second aspect when the executable instructions are executed.

In an eighth aspect, a computer readable storage medium is provided, comprising executable instructions stored thereon, when the executable instructions are run on a processing component, causing the processing component to perform any of claims 1 to 12 The method described in the item.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings used in the description of the embodiments will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present disclosure.

FIG. 1 is a schematic diagram of an application environment of a method for determining transmission parameter configuration information according to an embodiment of the present disclosure;

2 is a flowchart of a method of determining transmission parameter configuration information, according to an embodiment of the present disclosure;

3 is a flowchart of another method of determining transmission parameter configuration information, according to an embodiment of the present disclosure;

4a is a flowchart of still another method of determining transmission parameter configuration information, according to an embodiment of the present disclosure;

4b is a schematic diagram of a format of an instruction transmitted between a timing controller and a source driver chip, according to an embodiment of the present disclosure;

5a is a flowchart of a method for a timing controller to transmit a test signal through a second signal line, in accordance with an embodiment of the present disclosure;

5b is a flowchart of a method for a source driver chip to receive a test signal transmitted by a timing controller through a second signal line, in accordance with an embodiment of the present disclosure;

6 is a flowchart of a method for determining a target time interval corresponding to a subtest signal having the highest transmission accuracy rate in a plurality of time intervals based on each subtest signal received by the source driver chip according to an embodiment of the present disclosure. ;

7 is a timing diagram of determining transmission parameter configuration information, in accordance with an embodiment of the present disclosure;

FIG. 8a is a schematic structural diagram of a determining apparatus for transmitting parameter configuration information according to an embodiment of the present disclosure; FIG.

FIG. 8b is a schematic structural diagram of another determining apparatus for transmitting parameter configuration information according to an embodiment of the present disclosure; FIG.

FIG. 9 is a schematic structural diagram of still another apparatus for determining transmission parameter configuration information according to an embodiment of the present disclosure.

Detailed ways

The embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

It should be noted that all expressions using “first”, “second”, and the like in the embodiments of the present disclosure are used to distinguish two entities having the same name but not the same or non-identical parameters, and “first” may be seen. The "second" and the like are merely for convenience of description, and should not be construed as limiting the embodiments of the present disclosure, which will not be described in the following embodiments.

Embodiments of the present disclosure provide a method for determining transmission parameter configuration information. In the method, the transmitting end acquires transmission parameter configuration information by cooperating with the receiving end. The transmitting end is respectively connected to the receiving end through the first signal line and the second signal line, and the signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. The second signal line may be referred to as a high speed signal line, and the first signal line may be referred to as a low speed signal line.

In the embodiment of the present disclosure, it is assumed that the method is applied to a display device, the transmitting end may be a timing controller, and the receiving end may be a source driving chip. Referring to Figure 1, Figure 1 is a schematic illustration of an environment in which the techniques of the present disclosure are applied, in accordance with one embodiment of the present disclosure. As shown in FIG. 1, the display device includes a timing controller 01 and a plurality of source driving chips 02. The timing controller 01 is connected to a first signal line L. The plurality of source driving chips 02 are connected in parallel and connected to the first signal line L. The signals in the first signal line can be transmitted bidirectionally. The timing controller 01 is also connected to the plurality of source driving chips 02 via a plurality of second signal lines H, respectively. Generally, the plurality of second signal lines H of the timing controller 01 are connected in one-to-one correspondence with the plurality of source driving chips 02. In some embodiments, each of the source driving chips 02 can also be connected to the timing controller 01 through at least two second signal lines. The signal in the second signal line can be transmitted in one direction. Alternatively, the first signal line may be a low speed signal line, and the second signal line may be a high speed signal line. In order to ensure the quality of the transmitted signal, the second signal line may be a differential signal line. The transmission rate of low-speed signal lines is typically on the order of megabits per second, and the transmission rate of high-speed signal lines is typically on the order of gigabits per second. For example, the transmission rate of the low-speed signal line is 10 megabits per second, and the transmission rate of the high-speed signal line is 3.5 gigabits per second.

Referring to FIG. 2, FIG. 2 is a flowchart of a method of determining transmission parameter configuration information, according to an embodiment of the present disclosure. The method is applied to the receiving end, and the receiving end is respectively connected to the transmitting end through the first signal line and the second signal line. The signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. The receiving end can be a source driving chip in the display device. As shown in Figure 2, the method includes:

Step 201: Receive a time reference signal sent by the transmitting end through the first signal line, where the time reference signal has multiple time intervals.

Step 202: Receive a test signal sent by the transmitting end through the second signal line while receiving the time reference signal.

The received test signal includes a plurality of sub-test signals corresponding to a plurality of time intervals, and the plurality of sub-test signals are respectively obtained by transmitting the same initial test signal between the transmitting end and the receiving end based on different transmission parameter configuration information.

Step 203: Determine, according to each received subtest signal, a target time interval corresponding to the subtest signal with the highest transmission correctness rate in the plurality of time intervals. The target time interval can refer to the highest accuracy of signal or data transmission, that is, the time interval with the highest transmission accuracy rate.

Step 204: Send, by using the first signal line, an identifier of the target transmission parameter configuration information corresponding to the target time interval to the sending end. The target transmission parameter configuration may refer to a parameter configuration that enables the highest transmission accuracy between the transmitting end and the receiving end.

In summary, the method for determining transmission parameter configuration information provided by the embodiment of the present disclosure causes the receiving end to simultaneously receive the time reference signal on the first signal line and the test signal on the second signal line, so that the receiving end The target time interval corresponding to the subtest signal having the highest transmission correctness rate can be determined according to the plurality of subtest signals corresponding to the plurality of time intervals. Then, the identifier of the target transmission parameter configuration information corresponding to the target time interval is sent to the transmitting end, so that the target transmission parameter configuration information between the transmitting end and the receiving end can be determined without manual debugging. Therefore, the determination efficiency and flexibility of the transmission parameter configuration information are improved. The solution according to the embodiment of the present disclosure can solve the problem that the determination efficiency of the transmission parameter configuration information in the related art is low and the flexibility is poor.

Referring to FIG. 3, FIG. 3 is a flowchart of another method of determining transmission parameter configuration information, according to an embodiment of the present disclosure. The method is applied to a transmitting end, and the transmitting end is respectively connected to the receiving end through the first signal line and the second signal line. The signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. The transmitting end can be a timing controller in the display device. As shown in Figure 3, the method includes:

Step 301: Send a time reference signal to the receiving end by using the first signal line, where the time reference signal has multiple time intervals.

Step 302: Send a test signal through the second signal line while transmitting the time reference signal.

The test signal received by the receiving end includes a plurality of sub-test signals corresponding to the plurality of time intervals, and the plurality of sub-test signals are respectively the same initial test signal transmitted between the transmitting end and the receiving end based on different transmission parameter configuration information. The one obtained.

Step 303: Obtain an identifier of the target transmission parameter configuration information from the receiving end by using the first signal line.

The target transmission parameter configuration information refers to transmission parameter configuration information corresponding to the target time interval. The target time interval refers to a time interval corresponding to the subtest signal with the highest transmission correct rate among the determined plurality of time intervals based on each sub test signal received by the receiving end.

In summary, the method for determining transmission parameter configuration information provided by the embodiment of the present disclosure causes the transmitting end to simultaneously transmit a time reference signal on the first signal line and transmit the test signal on the second signal line, so that the receiving end The target time interval corresponding to the subtest signal having the highest transmission correctness rate can be determined according to the plurality of subtest signals corresponding to the plurality of time intervals. Then, the identifier of the target transmission parameter configuration information corresponding to the target time interval is sent to the transmitting end, so that the target transmission parameter configuration information between the transmitting end and the receiving end can be determined without manual debugging. Therefore, the determination efficiency and flexibility of the transmission parameter configuration information are improved.

Referring to FIG. 4a, FIG. 4a is a flowchart of still another method of determining transmission parameter configuration information, according to an embodiment of the present disclosure. The method can be applied to the application environment as shown in FIG. 1, and the transmitting end can be a timing controller, and the receiving end can be a source driving chip. The method includes:

Step 401: The timing controller sends basic parameter configuration information to the source driver chip.

The basic parameter configuration information is that each of the source driving chips needs to be configured before the timing controller sends the test signal to the source driving chip through the second signal line, so that the parameters of each source driving chip after power-on are unified. Configuration. The basic parameter configuration information includes configuration information of various parameters. These parameters may be parameters that have been determined after the entire panel drive architecture has been determined, regardless of the actual transmission path and signal attenuation. For example, the basic parameter configuration information may include information such as the number of second signal lines (also referred to as the number of high speed channels), the transmission rate (ie, the transmission rate of data on each signal line), and the number of pixels.

Optionally, the basic parameter configuration information may be carried in a configuration instruction sent by the timing controller to the source driving chip through the first signal line. The format of the instructions transmitted between the timing controller and the source driver chip can be the same. Figure 4b shows a schematic diagram of the format of the instruction. As shown in FIG. 4b, each instruction transmitted on the first signal line may include a preamble, a start identifier, a data bit (also referred to as a transaction body), and an end (stop). ) Identification.

The preamble is used to indicate clock and phase alignment at the receiving end of the instruction (ie, the instruction containing the preamble). The receiving end of the instruction (for example, the timing controller or the source driving chip) can perform clock and phase adjustment according to the content of the preamble when detecting the preamble transmission on the first signal line. The clock and phase adjustments can be used to maintain the clock coincident with the clock at the transmitting end of the instruction (ie, the instruction containing the preamble), the phase being the same as the transmitting end of the instruction. The receiving end of the instruction adjusts the clock and phase during the reception of the preamble. After the preamble transmission is completed, the clock and phase are adjusted. The start identifier is used to indicate the start of data transmission, the data bit is used to carry data such as basic parameter configuration information, and the end identifier is used to indicate the end of data transmission.

Step 402: The source driver chip performs basic parameter configuration according to basic parameter configuration information.

After receiving the basic parameter configuration information sent by the timing controller, the source driver chip can perform basic parameter configuration according to the basic parameter configuration information. The basic parameter configuration process is a process of initializing basic information of the second signal line. Since the second signal line can be a high speed signal line, the basic parameter configuration process is also referred to as an initialization process when the high speed channel establishes a connection.

For example, when the basic parameter configuration information includes the number of second signal lines connected to each of the source driving chips, the source driving chip saves the number of second signal lines connected thereto, and according to the second included in the basic parameter configuration information. The number of signal lines, the second signal line of the number is preset configured to receive the test signal using the configured second signal line. It should be noted that when the second signal line is a differential signal line, one second signal line is actually a signal line composed of two sub-signal lines. When the basic parameter configuration information includes the transmission rate, the transmission rate is used to inform the source driver chip of the transmission rate of the signal transmission to be performed, so that the source driver chip can accurately operate at the agreed transmission rate.

It should be noted that usually one source driver chip is connected to one second signal line. However, in some special scenarios, a second signal line may not meet the transmission requirements of the source driver chip, so a source driver chip may also connect at least two second signal lines according to the situation. In some embodiments, the basic parameter configuration information includes the number of second signal lines connected to each source driver chip. When the number of the second signal lines connected to all of the source driving chips is the same, the basic parameter configuration information may carry a second number of signal lines, which means that each of the source driving chips is configured according to the number. If the number of the second signal lines carried is 1, it means that each of the source driving chips is connected to one second signal line.

The basic parameter configuration information in step 402 is a parameter that has been determined after the entire panel driver architecture is determined, and is independent of factors such as the actual transmission path. Some transmission parameters are also included in the signal transmission process, and these transmission parameters are affected by factors such as the actual transmission path. In order to achieve better transmission quality, these transmission parameters can be adjusted to suit these factors. Therefore, configuration information about such transmission parameters needs to be determined before transmitting the display related signals to ensure the correctness of the transmitted signals.

In the embodiment of the present disclosure, the time reference signal having multiple time intervals is simultaneously transmitted on the first signal line by the timing controller and the source driving chip, and the test signal is transmitted on the second signal line, so that the source driving chip can Determining a target time interval corresponding to the subtest signal with the highest transmission correct rate according to the plurality of subtest signals corresponding to the plurality of time intervals, and determining the target transmission parameter configuration information corresponding to the target time interval as the configuration of the transmission parameter Information so that the timing controller and the source driver chip perform signal transmission based on the target transmission parameter configuration information. The process of determining the configuration information of the transmission parameter may refer to the following steps 403 to 407.

Step 403: The timing controller sends a time reference signal to the source driving chip through the first signal line.

Correspondingly, the source driver chip receives the time reference signal sent by the timing controller through the first signal line.

In order to ensure that the source drive signal can effectively identify the time reference signal, in one embodiment, as shown in FIG. 4b, a leading edge of the time reference signal can be generated compared to the end marker (ie, the first bit of the time reference signal) Different from the last digit of the end identifier, for example, if the last digit of the end marker is 0, the first bit of the time reference signal is 1). At the same time, the last bit of the time reference signal can produce a transition edge compared to the first bit of the next signal. Through the edge of the transition, the source driver chip can be easily distinguished from the time reference signal and other signals.

Alternatively, the time reference signal can be defined with a corresponding time start identifier and time end identifier. The time start identifier and the time end identifier may be different from the start identifier and the end identifier for the instruction.

The time reference signal has a plurality of time intervals, each time interval having a corresponding distinguishing identifier. The plurality of time intervals are used to provide a time reference function for the source driving chip when the source driving chip receives the plurality of signals to distinguish the signals received in different time periods. Optionally, in the time reference signal, the first bit of the latter time interval may generate a transition edge compared to the last bit of the previous time interval. Through the edge of the transition, the source driver chip can be facilitated to distinguish multiple time intervals in the time reference signal, thereby realizing effective identification of data. Alternatively, a clock signal having a plurality of periods may be employed as the time reference signal, and each time interval may include a clock signal of at least one period. Alternatively, each time interval may comprise the same number of cycles of the clock signal and thus have the same length of time. Since the clock signal has a fixed clock frequency, the reference effect of the time interval can be implemented simply and accurately when the clock signal is used as the time reference signal.

Step 404: The timing controller sends the test signal through the second signal line while transmitting the time reference signal.

When the timing controller transmits the time reference signal through the first signal line, the test signal is also transmitted through the second signal line. Correspondingly, the source driving chip receives the test signal sent by the timing controller through the second signal line while receiving the time reference signal. The test signal received by the test signal includes a plurality of sub-test signals corresponding to a plurality of time intervals. The plurality of sub-test signals are respectively obtained by transmitting the same initial test signal between the timing controller and the source driver chip based on different transmission parameter configuration information, and each sub-test signal corresponds to a time interval. According to the reference role of the time interval, the source driving chip can distinguish the plurality of sub-test signals, and thereby receive a plurality of sub-test signals corresponding to different transmission parameter configurations.

Different transmission parameter configuration information is configuration information obtained by performing different parameter configurations for the same group of transmission parameters. Since the transmission process is such that the signal is sent by the transmitting end (for example, the timing controller) and received by the receiving end (for example, the source driving chip), the same set of transmission parameters may include: the originating parameter, that is, the transmission parameter used by the transmitting end. And the receiving parameters, that is, the transmission parameters used by the receiving end. In some embodiments, different transmission parameter configuration information may be obtained by performing different parameter configurations only on the originating parameters or the terminating parameters. Therefore, the different transmission parameter configuration information may include: configuration information obtained by parameter configuration of the originating parameter at the transmitting end, and/or configuration information obtained by parameter configuration of the receiving end parameter at the receiving end.

Optionally, as shown in FIG. 5a, the process of the timing controller transmitting the test signal through the second signal line may include parameterizing the originating parameter at the transmitting end. The timing controller can transmit a test signal having a corresponding feature under each parameter combination in combination with the configured different origin parameter combinations.

Step 404a1: The timing controller acquires a correspondence between a preset plurality of time intervals and different transmission parameter configuration information.

Transmission parameter configuration information of the originating parameter corresponding to each time interval is described in the correspondence. The originating parameters may include parameters such as signal swing and signal pre-emphasis parameters. The signal swing is the difference between the maximum and minimum values of the signal. The larger the signal swing, the more obvious the fluctuation of the signal, and the easier it is to obtain an effective signal output. The signal pre-emphasis parameter refers to the change of the amplitude of the high-frequency component and the signal power in the signal spectrum when the frequency of the signal increases. The larger the signal pre-emphasis parameter, the better the amplitude-frequency characteristic of the signal and the higher the high-frequency resolution of the signal.

For example, when the transmission parameters are the signal swing and the signal pre-emphasis parameters, the correspondence between the preset multiple time intervals and the different transmission parameter configuration information for the two transmission parameters can be referred to Table 1. In Table 1, for example, the parameter of the signal swing corresponding to the first time interval is configured to be 300 mV (millivolt), and the parameter of the corresponding signal pre-emphasis parameter is configured to be 6 dB/oct (decibel/octave). The parameter of the signal swing corresponding to the second time interval is configured to be 300 mV, and the parameter of the corresponding signal pre-emphasis parameter is configured to be 12 dB/oct.

Table 1

Step 404a2: The timing controller sends a test having the corresponding feature in the parameter configuration through the second signal line according to the parameter configuration information of the originating parameter corresponding to the time interval in each time interval of the time reference signal according to the correspondence relationship. signal.

For example, before transmitting the test signal, the timing controller may search, in the correspondence, configuration information of a transmission parameter such as a signal swing and a signal pre-emphasis parameter corresponding to each time interval, and according to the configuration information of the found parameter. The transmission of the test signal through the second signal line is performed.

For example, it is assumed that the correspondence between the preset multiple time intervals and different transmission parameter configuration information is the correspondence relationship shown in Table 1. According to the correspondence, the timing controller may transmit the sub-test signal corresponding to the first time interval through the second signal line in a first time interval according to a combination of a signal swing of 300 mV and a pre-emphasis parameter of 6 dB/oct. Thus, the subtest signal sent during the first time interval will have a signal swing of 300 mV with a pre-emphasis of 6 dB/oct. Similarly, the timing controller may transmit a second sub-test signal corresponding to the second time interval through the second signal line in a second time interval according to a combination of a signal swing of 300 mV and a pre-emphasis parameter of 12 dB/oct. Thus, the subtest signal sent during the second time interval will have a signal swing of 300 mV and a pre-emphasis of 12 dB/oct.

It will be appreciated that although an embodiment of a combination of parameters comprising two parameters is shown herein, it will be understood that the originating parameters in embodiments of the present disclosure may comprise a single parameter or a combination of parameters comprising more than two parameters.

The signal can be adjusted from the transmitting end by parameter configuration for the originating parameter at the transmitting end and transmitting a test signal corresponding to the configured parameter or parameter combination through the second signal line. This helps to reduce the attenuation of the signal received at the receiving end and reduce the degree of distortion of the signal, thereby improving the accuracy of signal transmission.

Optionally, as shown in FIG. 5b, the process that the source driving chip receives the test signal sent by the timing controller through the second signal line may include parameterizing the receiving end parameter at the receiving end.

Step 404b1: The source driver chip acquires transmission parameter configuration information corresponding to each time interval. In one embodiment, the source driver chip can acquire a correspondence between a preset plurality of time intervals and different transmission parameter configuration information. Optionally, the source driver chip may acquire the correspondence relationship by receiving transmission parameter configuration information corresponding to the time interval from the timing controller in each time interval. Alternatively, the source driver chip may also acquire the correspondence by receiving a correspondence table of a plurality of time intervals from the timing controller and corresponding transmission parameter configuration information at a certain time interval.

The correspondence relationship may include transmission parameter configuration information of the terminating parameter corresponding to each time interval. The terminating parameter may include parameters such as a signal equalization parameter and an impedance parameter. The signal equalization parameter is used to indicate the gear position of the signal gain. Different signal equalization parameters can indicate the signal gain of different gear positions. The signal received by the source driver chip can be enhanced according to the signal equalization parameter. Thus, when the received signal cannot be correctly received after being attenuated, after the signal is enhanced according to the gear position indicated by the signal equalization parameter, the signal can be boosted to the range normally received by the source driver chip. The impedance parameter mainly affects the matching between the second signal line and the receiving port. It can be understood that the higher the degree of matching between the two, the smaller the degree of distortion of the signal received by the receiving end.

For example, when the transmission parameter configuration information is configuration information of a parameter such as a signal equalization parameter and an impedance parameter, the correspondence between the preset multiple time intervals and different transmission parameter configuration information may refer to Table 2.

Table 2

	信号均衡参数(单位：dB)Signal equalization parameters (unit: dB)	阻抗参数(单位：Ω)Impedance parameter (unit: Ω)
第一时间区间First time interval	11	100100
第二时间区间Second time interval	11	200200
第三时间区间Third time interval	22	100100
第四时间区间Fourth time interval	22	200200
第五时间区间Fifth time interval	33	100100
第六时间区间Sixth time interval	33	200200

In Table 2, the parameter of the signal equalization parameter corresponding to the first time interval is configured to be 1 dB (decibel), and the parameter of the corresponding impedance parameter is configured to be 100 Ω (ohm). The parameter of the signal equalization parameter corresponding to the second time interval is configured to be 2 dB, and the parameter of the corresponding impedance parameter is configured to be 200 Ω.

Step 404b2: The source driver chip configures the terminating parameter according to the acquired transmission parameter configuration information corresponding to the time interval in each time interval of the time reference signal to receive the received signal through the second signal line. Test signal. In one embodiment, the source driver chip can receive the test signal through the second signal line according to the corresponding relationship, in each time interval of the time reference signal, according to the parameter configuration of the terminating parameter corresponding to the time interval.

For example, it is assumed that the correspondence between the preset multiple time intervals and different transmission parameter configuration information is the correspondence relationship shown in Table 2. According to the correspondence, the source driving chip can receive the sub-test signal corresponding to the first time interval through the second signal line by using the 1 dB signal equalization parameter and the 100 Ω impedance parameter in the first time interval. Thus, the subtest signal corresponding to the first time interval will be received with an interface port impedance of 100 Ω and enhanced with a signal gain of 1 dB. Similarly, the source driver chip can receive the sub-test signal corresponding to the second time interval through the second signal line using the 1 dB signal equalization parameter and the 200 Ω impedance parameter in the second time interval. Thus, the subtest signal corresponding to the second time interval will be received with an interface port impedance of 200 Ω and enhanced with a signal gain of 1 dB. .

The signal can be adjusted again from the receiving end by parameter configuration at the receiving end for the receiving end parameter and receiving the corresponding test signal through the second signal line. This helps to further reduce the attenuation of the signal received by the receiving end and reduce the degree of distortion of the signal, thereby improving the transmission accuracy of the signal.

In some embodiments, the process of parameter configuration by the transmitting end and the receiving end may be performed simultaneously.

Step 405: The source driving chip determines, according to each of the received sub-test signals, a target time interval corresponding to the sub-test signal with the highest transmission accuracy rate in the plurality of time intervals.

Optionally, as shown in FIG. 6, the implementation process of step 405 may include:

Step 4051: Compare each subtest signal with a pre-stored initial test signal to determine a transmission correctness rate of each subtest signal.

Step 4052: Determine, according to the transmission accuracy rate of each sub-test signal, a target time interval corresponding to the sub-test signal with the highest transmission accuracy rate in the plurality of time intervals.

The transmission accuracy rate indicates the ratio of the received signal to the correct transmission compared to the transmitted initial signal. In data transmission, the transmission accuracy rate can be characterized by, for example, a bit error rate. By way of example, assume that the initial test signal stored in advance is 01034412340123401234. The source driver chip receives the test signal and includes three sub-test signals corresponding to the first time interval, the second time interval, and the third time interval, respectively. The three subtest signals are: 01233012440122201234, 01234111111123401234, and 01233012320123401234. After comparing the three sub-test signals with the pre-stored initial test signals, the transmission accuracy of the three sub-test signals can be obtained as 80%, 75%, and 90%, respectively. Accordingly, the error rates of the three subtest signals can be 20%, 25%, and 10%, respectively. It can be known that the third sub-test signal has the highest correct rate (ie, the lowest bit error rate), and the third time interval can be determined as the target time interval.

The transmission accuracy of a certain sub-test signal is the highest. It can be considered that when the parameter configuration is performed according to the parameter configuration signal corresponding to the time interval corresponding to the sub-test signal, the attenuation degree and distortion degree of the signal received by the receiving end are the smallest, and the maximum degree can be maximized. The ground ensures the correctness of the transmitted signal.

Step 406: The source driver chip queries the correspondence between the preset time interval and the identifier of the transmission parameter configuration information, and obtains the identifier of the target transmission parameter configuration information corresponding to the target time interval.

A set of transmission parameters corresponds to a time interval, and a set of transmission parameters may include a plurality of parameters. The identifier of the transmission parameter configuration information may be an identifier of a group corresponding to the same group of transmission parameters, or may be a signature of the parameter configuration information corresponding to the multiple parameters or any other indicator or identifier capable of distinguishing the configuration of the transmission parameter. symbol. Moreover, after determining the identifier of the target transmission parameter configuration information, the source driver chip may also record the identifier of the target transmission parameter configuration information in a preset register for subsequent use.

Step 407: The source driving chip sends the identifier of the target transmission parameter configuration information corresponding to the target time interval to the timing controller through the first signal line.

Correspondingly, the timing controller can receive the identifier of the target transmission parameter configuration information sent by the source driving chip through the first signal line. Optionally, the timing controller may also read the identifier of the target transmission parameter configuration information stored in the register of the source driver chip through the first signal line. The target transmission parameter configuration information is transmission parameter configuration information corresponding to the target time interval. The timing controller also stores a correspondence between the preset time interval and the identifier of the transmission parameter configuration information. When the timing controller receives the identifier of the target transmission parameter configuration information sent by the source driver chip or reads the identifier from the register The corresponding relationship may be queried according to the identifier, and the target transmission parameter configuration information corresponding to the identifier is determined.

For example, it is assumed that the identifier of the transmission parameter configuration information is the group identifier of the group corresponding to the same group of transmission parameters. The same set of transmission parameters may include: signal swing, signal pre-emphasis parameters, signal equalization parameters, and impedance parameters. In one embodiment, the sequence number of the time interval can be used as the group identification.

For example, the correspondence between the preset time interval and the identifier of the transmission parameter configuration information may refer to Table 3. In Table 3, the first time interval corresponds to the group identifier 1. The corresponding transmission parameter configuration information in the group identifier 1 is: signal swing is 300 mV, signal pre-emphasis parameter is 6 dB/oct, signal equalization parameter is 1, impedance The parameter is 100 Ω; the second time interval corresponds to the group identifier 2, and the corresponding transmission parameter configuration information in the group identifier 2 is: signal swing is 300 mV, signal pre-emphasis parameter is 12 dB/oct, signal equalization parameter is 1, impedance parameter The second time interval corresponds to the group identifier 3. The corresponding transmission parameter configuration information in the group identifier 3 is: signal swing 250 mV, signal pre-emphasis parameter is 6 dB/oct, signal equalization parameter is 2, and impedance parameter is 100 Ω. .

When the target time interval is the third time interval, it may be determined that the identifier of the target transmission parameter configuration information is 3, and the source driving chip may send the group identifier 3 to the timing controller through the first signal line. After receiving the identifier, the timing controller can determine that the target transmission parameter configuration information corresponding to the group identifier 3 is: a signal swing of 250 mV, a signal pre-emphasis parameter of 6 dB/oct, and a signal equalization parameter of 2 by querying the correspondence. The impedance parameter is 100Ω.

table 3

Step 408: The timing controller sends a signal to the source driving chip based on the target transmission parameter configuration information through the second signal line.

After receiving the identifier of the target transmission parameter configuration information, the timing controller may determine the corresponding target transmission parameter configuration information, and send a signal to the source driver chip through the second signal line to implement the timing based on the target transmission parameter configuration information. High-quality, high-speed signal transmission between the controller and the source driver chip.

In some embodiments, the display panel is provided with a plurality of source driving chips, and the plurality of source driving chips can be connected to the same timing controller. The timing controller and each of the source driver chips may determine the target transmission parameter configuration information corresponding to each of the source driver chips according to the determining method of the transmission parameter configuration information provided by the embodiment of the present disclosure. After determining the target transmission parameter configuration information corresponding to each source driving chip, between the timing controller and each of the source driving chips, the target transmission corresponding to each source driving chip can be performed through the second signal line. Parameter configuration information for high speed signal transmission. This enables each source driver chip to determine the most suitable combination of parameters based on its actual signal reception, thereby helping to reduce signal attenuation and improve signal transmission accuracy.

Optionally, the timing controller may transmit the high speed clock signal for clock calibration to the source driving chip through the second signal line based on the target transmission parameter configuration information. Correspondingly, the source driver chip can receive the high-speed clock signal according to the target transmission parameter configuration information, and calibrate the internal clock according to the high-speed clock signal to implement fast locking of the internal clock. After completing the fast locking of the internal clock, the timing controller can set the level of the first signal line to a high level and transmit other high-speed signals through the second signal line to enable the display panel to display normally.

FIG. 7 illustrates a timing diagram associated with a first signal line and a second signal line in a method in accordance with an embodiment of the present disclosure. As shown in FIG. 7, the method according to an embodiment of the present disclosure can be applied to automatic adaptation of transmission parameters, which can be divided into multiple phases, including a parameter adaptation phase, a data backhaul phase, a fast clock locking phase, and the like.

In the parameter adaptation phase, the transmitting end (eg, the timing controller in the display device) first transmits basic configuration parameters related to the receiving end (eg, the source driving chip in the display device) through the first signal line, such as the number of high-speed differential signaling channels. , number of pixels, transmission rate, etc. These basic configuration parameters are parameters that have been determined after the entire panel driver architecture has been determined in the display device, regardless of the actual transmission path and signal attenuation. After that, the transmitting end can send a high frequency signal of a fixed frequency through the first signal line to form a low speed clock signal. This clock signal can be used to distinguish, for example, the range of combinations of transmission parameters for each group. Illustratively, each cycle of the clock signal may correspond to a time interval. At the same time, the transmitting end also transmits a high-speed clock signal having a corresponding feature of the respective parameter combination, such as a transmission clock parameter group signal, through the second signal line and combining different parameter combinations. The combination of parameters described herein may include parameters that have a significant effect on signal quality improvement, such as signal swing, signal pre-emphasis processing, signal equalization, impedance setting, and the like. It can be understood that steps 401 to 406 in FIG. 4 may correspond to the parameter adaptation phase.

In the data return phase, the transmitting end can utilize the bidirectional data transmission capability of the first signal line, and the target signal combination identifier recorded in the register of the receiving end, that is, the optimal parameter combination identifier, is read back through the first signal line. Alternatively, the receiving end may send the target parameter combination identifier to the timing controller through the first signal line. At this stage, some other signals or no signals may be transmitted on the second signal line. It will be appreciated that step 407 in Figure 4 may correspond to a data backhaul phase.

The timing controller may obtain a corresponding configuration parameter according to the target parameter combination identifier, and accordingly set a signal channel of the second signal line corresponding to the receiving end.

In the fast clock lock phase, the timing controller sends a matching clock signal according to the obtained corresponding configuration parameter, and the receiving end performs internal clock calibration according to the clock signal, and is ready to receive and display data normally. In this phase, a clock mode signal can be transmitted on the second signal line. It will be appreciated that step 408 in Figure 4 may correspond to a fast clock lock phase. in

After the transmission parameters are automatically adapted, the display device can enter the display phase. Alternatively, the level of the first signal line may be a high level during the display phase, and the display related signal may be transmitted on the second signal line.

In summary, the method for determining transmission parameter configuration information provided by the embodiment of the present disclosure transmits a test signal on the second signal line by transmitting a time reference signal on the first signal line between the transmitting end and the receiving end. The receiving end is configured to determine, according to the plurality of sub-test signals corresponding to the plurality of time intervals, a target time interval corresponding to the sub-test signal with the highest transmission correct rate. Then, the identifier of the target transmission parameter configuration information corresponding to the target time interval is sent to the transmitting end, so that the receiving end can determine the target transmission parameter configuration information without manual debugging. Therefore, the determination efficiency and flexibility of the transmission parameter configuration information are improved. Since the target transmission parameter configuration information is used to transmit the plurality of sub-test signals, the transmission parameter configuration information corresponding to the sub-test signal with the highest correct rate is transmitted. Therefore, when the signal is transmitted based on the target transmission parameter configuration information, the transmission can be guaranteed to the greatest extent. The correctness of the signal. This effect is particularly pronounced when the signal needs to be transmitted over large and long distances.

It should be noted that the sequence of the determining method steps of the transmission parameter configuration information provided by the embodiment of the present disclosure may be appropriately adjusted, and the steps may also be correspondingly increased or decreased according to the situation. Variations of the methods that are readily apparent to those skilled in the art within the scope of the technology disclosed herein are intended to be included within the scope of the present disclosure.

The embodiment of the present disclosure further provides a determining device for transmitting parameter configuration information. The device can be placed at the receiving end. The receiving end is respectively connected to the transmitting end through the first signal line and the second signal line. The signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. As shown in Figure 8a, the apparatus 800 can include:

The first receiving module 801 is configured to receive a time reference signal sent by the transmitting end by using the first signal line, where the time reference signal has multiple time intervals.

The second receiving module 802 is configured to receive the test signal sent by the transmitting end through the second signal line while receiving the time reference signal. The received test signal may include a plurality of sub-test signals corresponding to a plurality of time intervals, and the plurality of sub-test signals are respectively obtained by transmitting the same initial test signal between the transmitting end and the receiving end based on different transmission parameter configuration information. .

The determining module 803 is configured to determine, according to each received sub-test signal, a target time interval corresponding to the sub-test signal with the highest transmission correct rate in the plurality of time intervals.

The sending module 804 is configured to send, by using the first signal line, an identifier of the target transmission parameter configuration information corresponding to the target time interval to the sending end.

In summary, the apparatus for determining transmission parameter configuration information provided by the embodiment of the present disclosure enables the target transmission parameter configuration information between the transmitting end and the receiving end to be determined without manual debugging, and the determination of the transmission parameter configuration information is improved. Efficiency and flexibility.

Optionally, the determining module 803 is configured to: compare each sub-test signal with a pre-stored initial test signal to determine a transmission correct rate of each sub-test signal.

The determining module 803 may further determine a target time interval corresponding to the subtest signal with the highest transmission correctness rate in the plurality of time intervals according to the transmission correctness rate of each subtest signal.

Optionally, different transmission parameter configuration information is obtained by performing different parameter configurations for the same group of transmission parameters. The same set of transmission parameters may include a termination parameter. The second receiving module 802 is configured to use the transmission parameter configuration information corresponding to each time interval, for example, to obtain a correspondence between a preset plurality of time intervals and different transmission parameter configuration information.

The second receiving module 802 may further configure, at each time interval of the time reference signal, the receiving end parameter according to the acquired transmission parameter configuration information corresponding to the time interval to receive the Test signal. For example, the second receiving module 802 can receive the test signal through the second signal line according to the parameter configuration of the terminating parameter corresponding to the time interval in each time interval of the time reference signal according to the correspondence.

Optionally, the terminating parameters may include signal equalization parameters and impedance parameters.

Optionally, the second receiving module 802 is further configured to: after the identifier of the target transmission parameter configuration information corresponding to the target time interval is sent to the sending end by using the first signal line, pass the second signal Line, the receiving signal sent by the transmitting end based on the target transmission parameter configuration information.

Optionally, as shown in FIG. 8b, the apparatus 800 may further include:

The querying module 805 is configured to: before the identifier of the target transmission parameter configuration information corresponding to the target time interval is sent to the sending end, query the correspondence between the preset time interval and the identifier of the transmission parameter configuration information, and obtain the target time interval corresponding to the target time interval. The identifier of the target transmission parameter configuration information.

Alternatively, the time reference signal can be a clock signal.

Alternatively, the second signal line may be a differential signal line.

In summary, the apparatus for determining transmission parameter configuration information provided by the embodiment of the present disclosure can determine the target transmission parameter configuration information between the transmitting end and the receiving end without manual debugging, and improve the determining efficiency of the transmission parameter configuration information. And flexibility.

The embodiment of the present disclosure further provides a determining device for transmitting parameter configuration information. The device is set at the transmitting end. The transmitting end is respectively connected to the receiving end through the first signal line and the second signal line. The signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. As shown in FIG. 9, the apparatus 900 can include:

The first sending module 901 is configured to send a time reference signal to the receiving end by using the first signal line, where the time reference signal has multiple time intervals.

The second sending module 902 is configured to send the test signal through the second signal line while transmitting the time reference signal. The test signal received by the receiving end may include a plurality of sub-test signals corresponding to the plurality of time intervals, wherein the plurality of sub-test signals are respectively the same initial test signal, and the information transmission base is configured between the transmitting end and the receiving end based on different transmission parameters. owned.

The receiving module 903 is configured to obtain, by using the first signal line, an identifier of the target transmission parameter configuration information from the receiving end. The target transmission parameter configuration information is transmission parameter configuration information corresponding to the target time interval. The target time interval is that the receiving end determines a time interval corresponding to the subtest signal with the highest transmission correct rate in the plurality of time intervals based on each received subtest signal.

Optionally, different transmission parameter configuration information is obtained by performing different parameter configurations for the same group of transmission parameters. The same set of transmission parameters includes the originating parameters. The second sending module 902 is configured to: acquire a correspondence between a preset multiple time intervals and different transmission parameter configuration information.

The second sending module 902 may further send the test signal through the second signal line according to the parameter configuration of the originating parameter corresponding to the time interval in each time interval of the time reference signal according to the correspondence.

Optionally, the originating parameters may include signal swings and signal pre-emphasis parameters.

Optionally, the second sending module 902 is further configured to: after obtaining the identifier of the target transmission parameter configuration information from the receiving end by using the first signal line, sending, by using the second signal line, the signal to the receiving end according to the target transmission parameter configuration information. .

In summary, the determining device of the transmission parameter configuration information provided by the embodiment of the present disclosure can determine the target transmission parameter configuration information between the transmitting end and the receiving end without manual debugging, thereby improving the determining efficiency of the transmission parameter configuration information and flexibility.

Embodiments of the present disclosure also provide a communication system including a transmitting end and a receiving end. The transmitting end is respectively connected to the receiving end through the first signal line and the second signal line. The signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. The receiving end includes determining means for transmitting parameter configuration information in the transmitting end according to an embodiment of the present disclosure, such as determining means for transmitting parameter configuration information shown in FIG. 8a or 8b. The transmitting end includes determining means for transmitting parameter configuration information in the receiving end according to an embodiment of the present disclosure, such as determining means for transmitting parameter configuration information shown in FIG.

The embodiment of the present disclosure further provides a determining device for transmitting parameter configuration information. The device is disposed at the receiving end. The receiving end is respectively connected to the transmitting end through the first signal line and the second signal line. The signal transmission rate of the second signal line is greater than the signal transmission rate of the first signal line. The apparatus includes a processor and a memory for storing executable instructions. The processor is configured to implement a method in accordance with an embodiment of the present disclosure, such as the method of determining transmission parameter configuration information illustrated above in connection with Figures 2, 4a, 5b, when the executable instructions are executed.

The embodiment of the present disclosure further provides a determining device for transmitting parameter configuration information, where the device is disposed at a transmitting end, and the transmitting end is respectively connected to the receiving end through the first signal line and the second signal line, and the signal transmission rate of the second signal line is A signal transmission rate greater than the first signal line. The apparatus includes a processor and a memory for storing executable instructions. Wherein the processor is configured to implement the method according to an embodiment of the present disclosure when executing the executable instruction, such as the method of determining the transmission parameter configuration information shown in connection with FIG. 3, FIG. 4a or FIG. 5a.

Embodiments of the present disclosure also provide a computer readable storage medium comprising executable instructions stored thereon. When the executable instructions are run on the processing component, causing the processing component to perform a method of implementing an embodiment in accordance with the present disclosure, such as determining transmission parameter configuration information as described above in connection with FIG. 2, FIG. 3, FIG. 4a, FIG. 5a, or FIG. method.

A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium. The storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

In various implementations, a processor or processing component can be combined with one or more storage media (eg, volatile and nonvolatile computer memory such as RAM, PROM, EPROM and EEPROM, floppy disk, compact disk, optical disk, tape Etc.) Related. In some implementations, a computer readable storage medium may be encoded with one or more programs (eg, executable instructions) that, when executed on one or more processors and/or processing components, perform at least some of The features discussed in . Various storage media may be fixed in a processor or processing component, or may be removable, such that one or more programs stored thereon can be loaded into a processor or processing component to implement the presently discussed herein. Various aspects of disclosure. The term "program" or "executable instructions" is used herein in a generic sense to refer to any type of computer code (eg, software or microcode) that can be employed to program one or more processors or processing components.

The "module", "unit", "device" and the like mentioned in the various embodiments may be implemented by using a hardware unit, a software unit, or a combination thereof. Examples of hardware units may include devices, components, processors, microprocessors, circuits, circuit components (eg, transistors, resistors, capacitors, inductors, etc.), integrated circuits, application specific integrated circuits (ASICs), programmable logic Devices (PLDs), digital signal processors (DSPs), field programmable gate arrays (FPGAs), memory cells, logic gates, registers, semiconductor devices, chips, microchips, chipsets, and more. Examples of software units may include software components, programs, applications, computer programs, applications, system programs, machine programs, operating system software, middleware, firmware, software modules, routines, subroutines, functions, methods, processes, Software interface, application programming interface (API), instruction set, calculation code, computer code, code segments, computer code segments, words, values, symbols, or any combination thereof. Determining embodiments is implemented using hardware units and/or still using software units, and can vary depending on any number of factors, such as desired computation rate, power level, heat resistance, processing period budget, input data rate, output Data rate, memory resources, data bus speed, and other design or performance constraints desired for a given implementation.

The above description is only the preferred embodiment of the present disclosure, and is not intended to limit the disclosure. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and principles of the present disclosure, should be included in the protection of the present disclosure. Within the scope.

Claims

A method for determining transmission parameter configuration information in a receiving end, wherein the receiving end is respectively connected to a transmitting end by using a first signal line and a second signal line, and a signal transmission rate of the second signal line is greater than the first Signal transmission rate of a signal line, the method comprising:

Receiving, by the transmitting end, a time reference signal sent by the first signal line, where the time reference signal has multiple time intervals;

Receiving, by the transmitting end, a test signal sent by the second signal line, while receiving the time reference signal, wherein the received test signal includes a plurality of sub-test signals corresponding to the plurality of time intervals one-to-one The plurality of sub-test signals are respectively obtained by transmitting the same initial test signal between the transmitting end and the receiving end based on different transmission parameter configuration information;

Determining, according to each of the received subtest signals, a target time interval corresponding to the subtest signal having the highest transmission correctness rate in the plurality of time intervals;

And sending, by the first signal line, an identifier of the target transmission parameter configuration information corresponding to the target time interval to the sending end.
The method of claim 1 wherein

The determining a target time interval corresponding to the subtest signal having the highest transmission correctness rate in the plurality of time intervals includes:

Comparing each of the sub-test signals with the pre-stored initial test signals to determine a transmission accuracy rate of each of the sub-test signals;

Determining, according to the transmission correctness rate of each of the subtest signals, a target time interval corresponding to the subtest signal having the highest transmission correctness rate in the plurality of time intervals.
The method according to claim 1, wherein the different transmission parameter configuration information is obtained by performing different parameter configurations for the same group of transmission parameters, respectively, the same group of transmission parameters including a terminating parameter, and

And receiving the test signal sent by the sending end by using the second signal line, including:

Obtaining transmission parameter configuration information corresponding to each time interval;

In each time interval of the time reference signal, the terminating parameter is configured to receive the test signal through the second signal line according to the acquired transmission parameter configuration information corresponding to the time interval.
The method of claim 3 wherein

The terminating parameters include a signal equalization parameter and an impedance parameter.
The method of claim 1 wherein

After the identifier of the target transmission parameter configuration information corresponding to the target time interval is sent to the sending end, the method further includes:

Receiving, by the second signal line, a signal sent by the transmitting end based on the target transmission parameter configuration information.
The method of claim 1, wherein before the sending of the identifier of the target transmission parameter configuration information corresponding to the target time interval to the transmitting end, the method further comprises:

Querying a correspondence between the preset time interval and the identifier of the transmission parameter configuration information, and obtaining an identifier of the target transmission parameter configuration information corresponding to the target time interval.
The method of claim 1 wherein the time reference signal is a clock signal.
The method of claim 1 wherein said second signal line is a differential signal line.
A method for determining transmission parameter configuration information in a transmitting end, wherein the transmitting end is respectively connected to a receiving end by using a first signal line and a second signal line, and a signal transmission rate of the second signal line is greater than the first Signal transmission rate of a signal line, the method comprising:

Transmitting, by the first signal line, a time reference signal to the receiving end, where the time reference signal has multiple time intervals;

Sending the test signal through the second signal line while transmitting the time reference signal, wherein the test signal received by the receiving end includes a plurality of sub-test signals corresponding to the plurality of time intervals one by one, The plurality of sub-test signals are respectively obtained by transmitting the same initial test signal between the transmitting end and the receiving end based on different transmission parameter configuration information;

Obtaining, by the first signal line, an identifier of target transmission parameter configuration information from the receiving end, where the target transmission parameter configuration information is transmission parameter configuration information corresponding to a target time interval, where the target time interval is the receiving And ending a time interval corresponding to the subtest signal with the highest transmission correctness rate in the plurality of time intervals determined by each of the received subtest signals.
The method according to claim 9, wherein the different transmission parameter configuration information is obtained by performing different parameter configurations for the same group of transmission parameters, the same group of transmission parameters including an originating parameter, and the The second signal line sends the test signal including:

Obtaining transmission parameter configuration information corresponding to each time interval;

In each time interval of the time reference signal, the originating parameter is configured to transmit the test signal through the second signal line according to the acquired transmission parameter configuration information corresponding to the time interval.
The method of claim 10 wherein

The originating parameters include a signal swing and a signal pre-emphasis parameter.
A method according to any one of claims 9 to 11, wherein

After obtaining the identifier of the target transmission parameter configuration information from the receiving end, the method further includes:

And transmitting, by the second signal line, a signal to the receiving end based on the target transmission parameter configuration information.
An apparatus for determining transmission parameter configuration information at a receiving end, wherein the receiving end is respectively connected to a transmitting end by using a first signal line and a second signal line, and a signal transmission rate of the second signal line is greater than the first The signal transmission rate of the signal line, the device comprising:

a first receiving module, configured to receive a time reference signal sent by the sending end by using the first signal line, where the time reference signal has multiple time intervals;

a second receiving module, configured to receive, by the transmitting end, a test signal sent by the sending end by using the second signal line, while receiving the time reference signal, where the received test signal includes one of the multiple time intervals a corresponding plurality of sub-test signals, wherein the plurality of sub-test signals are respectively obtained by transmitting the same initial test signal between the transmitting end and the receiving end based on different transmission parameter configuration information;

a determining module, configured to determine, according to each of the received sub-test signals, a target time interval corresponding to the sub-test signal with the highest transmission correct rate in the multiple time intervals;

And a sending module, configured to send, by using the first signal line, an identifier of the target transmission parameter configuration information corresponding to the target time interval to the sending end.
The apparatus of claim 13 wherein said determining module is for:

Comparing each of the sub-test signals with the pre-stored initial test signals to determine a transmission accuracy rate of each of the sub-test signals;

Determining, according to the transmission correctness rate of each of the subtest signals, a target time interval corresponding to the subtest signal having the highest transmission correctness rate in the plurality of time intervals.
The apparatus according to claim 13, wherein the different transmission parameter configuration information is obtained by performing different parameter configurations for the same group of transmission parameters, where the same group of transmission parameters includes a terminating parameter.

The second receiving module is configured to:

Obtaining transmission parameter configuration information corresponding to each time interval;

In each time interval of the time reference signal, the terminating parameter is configured to receive the test signal through the second signal line according to the acquired transmission parameter configuration information corresponding to the time interval.
The device according to claim 15, wherein

The terminating parameters include a signal equalization parameter and an impedance parameter.
The device according to any one of claims 13 to 16, wherein the second receiving module is further configured to:

After transmitting the identifier of the target transmission parameter configuration information corresponding to the target time interval to the transmitting end, receiving, by the second signal line, a signal sent by the transmitting end based on the target transmission parameter configuration information.
The device according to any one of claims 13 to 16, wherein the device further comprises:

a querying module, configured to query a correspondence between a preset time interval and an identifier of the transmission parameter configuration information, before the identifier of the target transmission parameter configuration information corresponding to the target time interval is sent to the sending end, to obtain the The identifier of the target transmission parameter configuration information corresponding to the target time interval.
The apparatus of claim 13 wherein said time reference signal is a clock signal.
The apparatus of claim 13, wherein the second signal line is a differential signal line.
An apparatus for determining transmission parameter configuration information at a transmitting end, where the transmitting end is respectively connected to a receiving end by a first signal line and a second signal line, and a signal transmission rate of the second signal line is greater than the first The signal transmission rate of the signal line, the device comprising:

a first sending module, configured to send, by using the first signal line, a time reference signal to the receiving end, where the time reference signal has multiple time intervals;

a second sending module, configured to send a test signal by using the second signal line while transmitting the time reference signal, where the test signal received by the receiving end includes one-to-one correspondence with the multiple time intervals a plurality of sub-test signals, wherein the plurality of sub-test signals are respectively obtained by transmitting the same initial test signal between the transmitting end and the receiving end based on different transmission parameter configuration information;

a receiving module, configured to obtain, by using the first signal line, an identifier of target transmission parameter configuration information from the receiving end, where the target transmission parameter configuration information is transmission parameter configuration information corresponding to a target time interval, the target time The interval is a time interval corresponding to the subtest signal with the highest transmission accuracy rate among the plurality of time intervals determined by the receiving end based on each of the received subtest signals.
The apparatus according to claim 21, wherein said different transmission parameter configuration information is obtained by performing different parameter configurations for the same group of transmission parameters, said same group of transmission parameters including originating parameters, said second transmitting module Used for:

Obtaining transmission parameter configuration information corresponding to each time interval;

In each time interval of the time reference signal, the originating parameter is configured to transmit the test signal through the second signal line according to the acquired transmission parameter configuration information corresponding to the time interval.
The device according to claim 22, wherein

The originating parameters include a signal swing and a signal pre-emphasis parameter.
The apparatus according to any one of claims 21 to 23, wherein said second transmitting module is further configured to:

After obtaining the identifier of the target transmission parameter configuration information from the receiving end, transmitting, by the second signal line, a signal to the receiving end based on the target transmission parameter configuration information.
A communication system includes a transmitting end and a receiving end, wherein the transmitting end is respectively connected to the receiving end through a first signal line and a second signal line, and a signal transmission rate of the second signal line is greater than that of the first signal line Signal transmission rate,

The receiving end comprises the apparatus according to any one of claims 13 to 20;

The transmitting end comprises the device according to any one of claims 21 to 24.
An apparatus for determining transmission parameter configuration information in a receiving end, wherein the receiving end is respectively connected to a transmitting end by using a first signal line and a second signal line, and a signal transmission rate of the second signal line is greater than the first The signal transmission rate of a signal line, the device comprising:

processor;

a memory for storing executable instructions;

Wherein the processor is configured to perform the method of any of claims 1-8 when the executable instructions are executed.
An apparatus for determining transmission parameter configuration information in a transmitting end, where the transmitting end is respectively connected to a receiving end by a first signal line and a second signal line, and a signal transmission rate of the second signal line is greater than the first The signal transmission rate of a signal line, the device comprising:

processor;

a memory for storing executable instructions;

Wherein the processor is configured to perform the method of any one of claims 9-12 when the executable instructions are executed.
A computer readable storage medium comprising executable instructions stored thereon that, when executed on a processing component, cause the processing component to perform the method of any one of claims 1 to 12.