Method, apparatus and system for controlling signal transmission

Abstract

The present disclosure relates to a signal emission control method, device and system, and relates to the technical field of communication. The signal emission control method comprises: controlling each head-end device to respectively send a corresponding SSB signal at different time points to obtain a SSB signal sending sequence of each head-end device, and the SSB signal sending sequences of different head-end devices are different; obtaining a SSB signal measurement sequence of a terminal according to SSB signal measurement results returned by the terminal at different time points; matching the SSB signal measurement sequence with each SSB signal sending sequence to determine in which coverage range of which head-end device the terminal is located; and controlling the head-end device in the coverage range containing the terminal to send a signal to the terminal.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a signal transmission control method, a signal transmission control device, a signal transmission control system, and a non-volatile computer-readable storage medium. Background Technology

[0002] Digital indoor distribution systems are a successful solution for improving the mobile communication environment within buildings, targeting indoor user groups. They utilize relevant technologies to evenly distribute mobile communication base station signals throughout every corner of the building, thereby ensuring ideal signal coverage in the indoor area.

[0003] In related technologies, all head-end devices in an indoor distribution system transmit downlink signals. Summary of the Invention

[0004] The inventors of this disclosure have discovered the following problem in the aforementioned related technologies: all head-end devices transmitting downlink signals leads to energy waste.

[0005] In view of this, this disclosure proposes a signal transmission control technology scheme that can avoid energy waste and achieve the purpose of energy saving and consumption reduction.

[0006] According to some embodiments of this disclosure, a signal transmission control method is provided, comprising: controlling each head-end device to transmit its corresponding SSB (Synchronization Signal Block) signal at different times to obtain the SSB signal transmission sequence of each head-end device, wherein the SSB signal transmission sequences of different head-end devices are different from each other; obtaining the SSB signal measurement sequence of the terminal based on the SSB signal measurement results returned by the terminal at different times; matching the SSB signal measurement sequence with each SSB signal transmission sequence to determine which head-end device the terminal is located within the coverage area of; and controlling the head-end device whose coverage area includes the terminal to transmit a signal to the terminal.

[0007] In some embodiments, controlling each head-end device to send its corresponding SSB signal at different times to obtain the SSB signal transmission sequence of each head-end device includes: configuring different grouping methods for different times, with each group having its own corresponding SSB signal; assigning each head-end device to a corresponding group at different times according to the grouping method at different times; and controlling each head-end device to send the SSB signal corresponding to its group at different times to obtain the SSB signal transmission sequence of each head-end device.

[0008] In some embodiments, a correspondence is established between the identifier of each group and the index of each SSB signal; controlling each head-end device to send the SSB signal corresponding to its group at different times to obtain the SSB signal transmission sequence of each head-end device includes: according to the correspondence, controlling each head-end device to send the SSB signal whose index corresponds to the identifier of the group to which the head-end device is located at different times.

[0009] In some embodiments, the SSB signal transmission sequence and the SSB signal measurement sequence include an index of the corresponding SSB signal.

[0010] In some embodiments, controlling the headend device of the terminal to send signals to the terminal includes: controlling the headend device of the terminal to send at least one of a PDCCH (Physical Downlink Control Channel) signal and a PDSCH (Physical Downlink Shared Channel) signal to the terminal.

[0011] According to some other embodiments of this disclosure, a signal transmission control device is provided, comprising: a head-end device control module, configured to control each head-end device to transmit its corresponding SSB signal at different times to obtain the SSB signal transmission sequence of each head-end device, wherein the SSB signal transmission sequences of different head-end devices are different from each other; a measurement module, configured to obtain the SSB signal measurement sequence of the terminal based on the SSB signal measurement results returned by the terminal at different times, match the SSB signal measurement sequence with each SSB signal transmission sequence to determine which head-end device the terminal is located within the coverage area of; and a downlink power control module, configured to control the head-end devices whose coverage area includes the terminal to transmit signals to the terminal.

[0012] In some embodiments, the head-end device control module configures different grouping methods for different times, and each group has its own corresponding SSB signal. According to the grouping method at different times, the head-end device is assigned to the corresponding group at different times, and the head-end device is controlled to send the SSB signal corresponding to its group at different times to obtain the SSB signal transmission sequence of each head-end device.

[0013] In some embodiments, a correspondence is established between the identifier of each group and the index of each SSB signal; the head-end device control module controls each head-end device to send the SSB signal corresponding to the identifier of the group to which the head-end device is located at different times according to the correspondence.

[0014] In some embodiments, the SSB signal transmission sequence and the SSB signal measurement sequence include an index of the corresponding SSB signal.

[0015] In some embodiments, the downlink power control module controls the coverage area including at least one of PDCCH and PDSCH sent from the terminal's headend device to the terminal.

[0016] According to further embodiments of this disclosure, a signal transmission control system is provided, comprising: a control device for executing the control method of any of the above embodiments; and a plurality of head-end devices for transmitting a synchronization signal block (SSB) signal.

[0017] According to further embodiments of the present disclosure, a signal transmission control device is provided, comprising: a memory; and a processor coupled to the memory, the processor being configured to execute the signal transmission control method of any of the above embodiments based on instructions stored in the memory device.

[0018] According to further embodiments of the present disclosure, a non-volatile computer-readable storage medium is provided having a computer program stored thereon that, when executed by a processor, implements the signal transmission control method of any of the above embodiments.

[0019] In the above embodiments, each head-end device sends a different SSB signal transmission sequence. By matching the terminal's SSB signal measurement sequence with each SSB signal transmission sequence, the head-end devices with terminals within the coverage area are determined. This ensures that signals are transmitted only to the head-end devices covering the user, thereby avoiding energy waste, achieving precise signal transmission, and realizing energy saving and consumption reduction. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, illustrate embodiments of this disclosure and, together with the specification, serve to explain the principles of this disclosure.

[0021] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description:

[0022] Figure 1 Flowcharts illustrating some embodiments of the signal transmission control method of this disclosure;

[0023] Figure 2 Show Figure 1 Flowcharts of some embodiments of step 110;

[0024] Figure 3 Schematic diagrams showing some embodiments of the signal transmission control device of this disclosure;

[0025] Figure 4 Block diagrams showing some embodiments of the signal transmission control device of this disclosure;

[0026] Figure 5Block diagrams showing other embodiments of the signal transmission control device of this disclosure;

[0027] Figure 6 Block diagrams showing further embodiments of the signal transmission control device of this disclosure;

[0028] Figure 7 Block diagrams illustrating some embodiments of the signal transmission control system of this disclosure are shown. Detailed Implementation

[0029] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present disclosure.

[0030] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0031] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use.

[0032] Techniques, methods, and equipment known to a person skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the license specification.

[0033] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0035] As mentioned earlier, for an indoor distribution system, there may only be users within the coverage area of ​​some of the head-end devices, and sending signals from all head-end devices would result in a waste of energy.

[0036] To address the aforementioned technical issues, the technical solution disclosed herein only requires the user's head-end equipment within the coverage area to transmit signals, thereby avoiding energy waste, achieving accurate transmission of downlink signals, and realizing the goal of energy conservation and consumption reduction.

[0037] For example, the technical solution of this disclosure can be implemented through the following embodiments.

[0038] Figure 1 Flowcharts illustrating some embodiments of the signal transmission control method of this disclosure are shown.

[0039] like Figure 1 As shown, in step 110, each head-end device is controlled to send its corresponding SSB signal at different times to obtain the SSB signal transmission sequence of each head-end device. The SSB signal transmission sequences of different head-end devices are different from each other.

[0040] In some embodiments, it can be achieved through Figure 2 The embodiment in the example implements step 110.

[0041] Figure 2 Show Figure 1 A flowchart of some embodiments of step 110.

[0042] like Figure 2 As shown, in step 1110, different grouping methods are configured for different times, and each group has its own corresponding SSB signal.

[0043] In some embodiments, a correspondence is established between the identifier of each group and the index of each SSB signal. For example, the pRRUs (pico radio remote units) at each end of the head can be grouped, and beam scanning processing can be introduced, with the SSB Index corresponding to the group number.

[0044] In some embodiments, the number of packets is the same as the number of SSB signals. This ensures that the SSB signal transmission sequence of each headend device is different, thereby identifying the headend devices covering the terminals.

[0045] For example, there are 7 SSB signals, namely SSB0 to SSB6; 7 groups can be set, namely groups 0 to 6, corresponding to SSB0 to SSB6 respectively; that is, the headend device assigned to group 1 at the current time sends SSB1; the headend device assigned to group 2 at the current time sends SSB2, and so on.

[0046] In step 1120, each head-end device is assigned to a corresponding group at different times according to the grouping method at different times.

[0047] In some embodiments, the pRRU grouping method is dynamically changed over time according to a preset strategy. Thus, the user's coverage of the corresponding pRRU can be determined by the sequence of SSB grouping index changes measured by the terminal.

[0048] In step 1130, each head-end device is controlled to send an SSB signal corresponding to its corresponding group at different times to obtain the SSB signal transmission sequence of each head-end device. For example, based on the correspondence, each head-end device is controlled to send an SSB signal with an index corresponding to the identifier of the group to which the head-end device belongs at different times.

[0049] For example, at time T0, the allocation method is as follows: pRRU1 is assigned to group 0 to send SSB0, pRRU2 is assigned to group 3 to send SSB3, ..., pRRUn is assigned to group 5 to send SSB5; at time T1, the allocation method is as follows: pRRU1 is assigned to group 4 to send SSB4, pRRU2 is assigned to group 0 to send SSB0, ..., pRRUn is assigned to group 1 to send SSB1; and so on. The SSB signal transmission sequence of each pRRU from T0 to T10 can be obtained, as shown in the table below:

[0050] T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 pRRU1 SSB0 SSB4 SSB1 SSB1 SSB1 SSB4 SSB4 SSB1 SSB4 SSB2 SSB2 pRRU2 SSB3 SSB0 SSB1 SSB0 SSB1 SSB4 SSB5 SSB2 SSB5 SSB4 SSB6 ... pRRUn SSB5 SSB1 SSB3 SSB5 SSB1 SSB6 SSB3 SSB2 SSB6 SSB4 SSB0 ...

[0051] After obtaining the SSB signal transmission sequence, it can be done through Figure 1 The other steps in the process continue to send signals.

[0052] In step 120, the SSB signal measurement sequence of the terminal is obtained based on the SSB signal measurement results returned by the terminal at different times. For example, the SSB signal transmission sequence and the SSB signal measurement sequence include the indexes of the corresponding SSB signals.

[0053] For example, the SSB signal measurement sequence received by the terminals from T0 to T10 can be obtained, as shown in the table below:

[0054] SSB5 SSB1 SSB3 SSB5 SSB1 SSB6 SSB3 SSB2 SSB6 SSB4 SSB0

[0055] In step 130, the SSB signal measurement sequence is matched with each SSB signal transmission sequence to determine which headend device the terminal is located within.

[0056] For example, by matching the results of the two tables above, it can be determined that the terminal is within the coverage area of ​​pRRUn.

[0057] In step 140, the control coverage includes the headend device of the terminal sending signals to the terminal. For example, the control coverage includes the headend device of the terminal sending at least one of a PDCCH signal and a PDSCH signal to the terminal.

[0058] In this way, downlink signals are transmitted only to pRRUs covering the user or surrounding pRRUs, thereby reducing the overall system transmit power and achieving energy saving. This effect is particularly noticeable when users have low mobility indoors.

[0059] In some embodiments, the main technical solution of this disclosure includes: grouping the pRRUs at each end of the head unit and introducing beam scanning processing, corresponding to the group number through the SSB Index; dynamically changing the grouping method of the pRRUs according to a preset strategy as time changes, and determining the pRRU covered by the user by measuring the SSB group Index change sequence from the terminal; transmitting downlink signals only to the pRRUs covering the user or the surrounding pRRUs, thereby reducing the transmission power of the entire system and achieving energy saving and consumption reduction. This effect is particularly pronounced when user mobility is low indoors.

[0060] Figure 3 Schematic diagrams showing some embodiments of the signal transmission control device of this disclosure.

[0061] like Figure 3 As shown, the signal transmission control device includes a head-end equipment control module, a user location measurement module, and a downlink power control module.

[0062] The head-end equipment control module is responsible for mapping different pRRU groups, pRRU combinations, and SSBs; the user location measurement module calculates which pRRUs the user is within the coverage area of ​​based on the SSB information reported by the user; and the downlink power control module controls which pRRUs the user's PDCCH or PDSCH transmits on based on the user's location information.

[0063] In some embodiments, at time T0, the pRRU is divided into several groups according to grouping method 1 (the number of groups is equal to the number of SSBs configured in the system); according to different groups, each pRRU sends the corresponding SSB signal; the terminal measures and reports the SSB measurement result (assuming the measurement result is SSBk0).

[0064] At time T1, the grouping method is changed, and the pRRU is divided into several groups according to grouping method 2 (the number of groups is equal to the number of SSBs configured in the system). According to different groups, each pRRU sends the corresponding SSB, and the terminal measures and reports the SSB measurement result (assuming the measurement result is SSBk1).

[0065] This process is repeated continuously, matching the SSB sequence measured by the terminal with the SSB Index sequence of the pRRU; if a matching SSB Index sequence is found, it is confirmed that the terminal is within the coverage area of ​​the corresponding pRRU.

[0066] In some embodiments, the downlink power control module is also used for encoding and modulation of PDCCH and PDSCH; the headend device control module is also used for encoding and modulation of SSB signals, and encoding and modulation of PSS (Primary Synchronization Signal), SSS (Secondary Synchronization Signal), RS (Reference Signal), and PBCH (Physical Downlink Shared Channel); the user location measurement module is also used for receiving feedback from user SSB measurements.

[0067] In the above embodiments, by using SSB sequences arranged according to a preset strategy to expand the resolution of SSB positioning, accurate transmission of downlink signals can be achieved without adding additional reference signals or signaling overhead. This is particularly suitable for indoor coverage scenarios (such as single-site coverage).

[0068] Figure 4 Block diagrams illustrating some embodiments of the signal transmission control device of this disclosure are shown.

[0069] like Figure 4 As shown, the signal transmission control device 4 includes a head-end equipment control module 41, a measurement module 42, and a downlink power control module 43.

[0070] The head-end device control module 41 controls each head-end device to send its corresponding SSB signal at different times to obtain the SSB signal transmission sequence of each head-end device. The SSB signal transmission sequences of different head-end devices are different from each other.

[0071] The measurement module 42 obtains the SSB signal measurement sequence of the terminal based on the SSB signal measurement results returned by the terminal at different times, matches the SSB signal measurement sequence with the transmission sequence of each SSB signal, and determines which head-end device the terminal is located in.

[0072] The downlink power control module 43 controls the coverage area including the signal sent from the headend device of the terminal to the terminal.

[0073] In some embodiments, the head-end device control module 41 configures different grouping methods for different times. Each group has its own corresponding SSB signal. According to the grouping method at different times, the head-end device is assigned to the corresponding group at different times. The module controls each head-end device to send the SSB signal corresponding to its group at different times to obtain the SSB signal transmission sequence of each head-end device.

[0074] In some embodiments, a correspondence is established between the identifier of each group and the index of each SSB signal; the head-end device control module 41 controls each head-end device to send the SSB signal corresponding to the identifier of the group to which the head-end device is located at different times according to the correspondence.

[0075] In some embodiments, the SSB signal transmission sequence and the SSB signal measurement sequence include an index of the corresponding SSB signal.

[0076] In some embodiments, the downlink power control module 43 controls the coverage area including at least one of PDCCH and PDSCH sent from the terminal's headend device to the terminal.

[0077] Figure 5 Block diagrams showing other embodiments of the signal transmission control device of this disclosure are illustrated.

[0078] like Figure 5 As shown, the signal transmission control device 5 of this embodiment includes: a memory 51 and a processor 52 coupled to the memory 51. The processor 52 is configured to execute the signal transmission control method of any embodiment of this disclosure based on the instructions stored in the memory 51.

[0079] The memory 51 may include, for example, system memory, fixed non-volatile storage media, etc. The system memory stores, for example, the operating system, application programs, a boot loader, a database, and other programs.

[0080] Figure 6 Block diagrams showing further embodiments of the signal transmission control device of this disclosure are presented.

[0081] like Figure 6 As shown, the signal transmission control device 6 of this embodiment includes a memory 610 and a processor 620 coupled to the memory 610. The processor 620 is configured to execute the signal transmission control method of any of the foregoing embodiments based on instructions stored in the memory 610.

[0082] The memory 610 may include, for example, system memory, fixed non-volatile storage media, etc. The system memory may store, for example, the operating system, application programs, a boot loader, and other programs.

[0083] The signal transmission control device 6 may also include an input / output interface 630, a network interface 640, and a storage interface 650. These interfaces 630, 640, and 650, as well as the memory 610 and processor 620, can be connected via, for example, a bus 660. The input / output interface 630 provides a connection interface for input / output devices such as monitors, mice, keyboards, touchscreens, microphones, and speakers. The network interface 640 provides a connection interface for various networked devices. The storage interface 650 provides a connection interface for external storage devices such as SD cards and USB flash drives.

[0084] Figure 7 Block diagrams illustrating some embodiments of the signal transmission control system of this disclosure are shown.

[0085] like Figure 7 As shown, the signal transmission control system 7 includes: a control device 71 for executing the control method of any of the above embodiments; and a plurality of head-end devices 72 for transmitting synchronization signal block (SSB) signals.

[0086] Those skilled in the art will understand that embodiments of this disclosure can be provided as methods, systems, or computer program products. Therefore, this disclosure can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this disclosure can take the form of a computer program product embodied on one or more computer-usable non-transitory storage media containing computer-usable program code, including but not limited to disk storage, CD-ROM, optical storage, etc.

[0087] The control method, control device, control system, and non-volatile computer-readable storage medium for signal transmission according to this disclosure have been described in detail above. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solutions disclosed herein based on the above description.

[0088] The methods and systems of this disclosure may be implemented in many ways. For example, they may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order of steps for the methods is for illustrative purposes only, and the steps of the methods of this disclosure are not limited to the order specifically described above unless otherwise specifically stated. Furthermore, in some embodiments, this disclosure may also be implemented as a program recorded on a recording medium, the program including machine-readable instructions for implementing the methods according to this disclosure. Thus, this disclosure also covers recording media storing programs for performing the methods according to this disclosure.

[0089] While specific embodiments of this disclosure have been described in detail by way of example, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A method for controlling signal transmission, comprising: controlling each of a plurality of head devices to respectively transmit a corresponding synchronization signal block (SSB) signal at different time instants to obtain a SSB signal transmission sequence of each of the head devices, wherein the SSB signal transmission sequence comprises SSB signals transmitted by a same head device at each of the different time instants, and the SSB signal transmission sequences of different head devices are different from each other; obtaining a SSB signal measurement sequence of a terminal according to SSB signal measurement results returned by the terminal at the different time instants; matching the SSB signal measurement sequence with each of the SSB signal transmission sequences to determine in which coverage range of the plurality of head devices the terminal is located; controlling a head device in the coverage range containing the terminal to transmit a signal to the terminal, wherein the controlling each of the plurality of head devices to respectively transmit a corresponding SSB signal at different time instants to obtain a SSB signal transmission sequence of each of the head devices comprises: configuring different grouping manners for each of the head devices at different time instants, each of the grouping manners having a corresponding SSB signal; allocating each of the head devices to a corresponding grouping manner at each of the different time instants according to the grouping manner at the time instant; controlling each of the head devices to respectively transmit a SSB signal corresponding to the grouping manner in which the head device is located at each of the different time instants to obtain a SSB signal transmission sequence of each of the head devices. 2.The method of claim 1, wherein: a corresponding relationship is established between an identifier of each of the grouping manners and an index of each of the SSB signals; and the controlling each of the head devices to respectively transmit a SSB signal corresponding to the grouping manner in which the head device is located at each of the different time instants to obtain a SSB signal transmission sequence of each of the head devices comprises: controlling each of the head devices to respectively transmit a SSB signal corresponding to an index corresponding to an identifier of a grouping manner in which the head device is located at each of the different time instants according to the corresponding relationship. 3.The method of any one of claims 1-2, wherein: the SSB signal transmission sequence and the SSB signal measurement sequence comprise indexes of corresponding SSB signals; and 4. The control method according to any one of claims 1-2, wherein, the controlling a head device in the coverage range containing the terminal to transmit a signal to the terminal comprises: controlling a head device in the coverage range containing the terminal to transmit at least one of a physical downlink control channel (PDCCH) signal and a physical downlink shared channel (PDSCH) signal to the terminal. 5.An apparatus for controlling signal transmission, comprising: a head device control module configured to control each of a plurality of head devices to respectively transmit a corresponding synchronization signal block (SSB) signal at different time instants to obtain a SSB signal transmission sequence of each of the head devices, wherein the SSB signal transmission sequence comprises SSB signals transmitted by a same head device at each of the different time instants, and the SSB signal transmission sequences of different head devices are different from each other. a measurement module, configured to obtain a SSB signal measurement sequence of the terminal according to SSB signal measurement results returned by the terminal at different time points, match the SSB signal measurement sequence with each SSB signal transmission sequence, and determine which head-end device in the plurality of head-end devices the terminal is located in a coverage range of; a downlink power control module, configured to control a head-end device whose coverage range contains the terminal to transmit a signal to the terminal, wherein the head-end device control module configures different grouping manners for each head-end device at different time points, each group has a corresponding SSB signal, according to the grouping manners at different time points, allocates each head-end device to a corresponding group at each time point of the different time points, controls each head-end device to transmit a SSB signal corresponding to the group the head-end device is located in at each time point of the different time points, and obtains a SSB signal transmission sequence of each head-end device.

6. The control device according to claim 5, wherein a corresponding relationship is established between the identifier of each group and the index of each SSB signal; the head-end device control module controls each head-end device to transmit a SSB signal whose index corresponds to the identifier of the group the head-end device is located in at different time points according to the corresponding relationship.

7. The control device according to any one of claims 5-6, wherein the SSB signal transmission sequence and the SSB signal measurement sequence include indexes of corresponding SSB signals.

8. The control device according to any one of claims 5-6, wherein the downlink power control module controls a head-end device whose coverage range contains the terminal to transmit at least one of a physical downlink control channel (PDCCH) signal and a physical downlink shared channel (PDSCH) signal to the terminal.

9. A control system of signal transmission, comprising: a control device configured to perform the control method according to any one of claims 1-4; and a plurality of head-end devices configured to transmit a synchronization signal block (SSB) signal.

10. A control device of signal transmission, comprising: a memory; and a processor coupled to the memory, configured to perform the control method according to any one of claims 1-4 based on instructions stored in the memory.

11. A non-volatile computer-readable storage medium having a computer program stored thereon, the program being executed by a processor to implement the control method according to any one of claims 1-4.

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