CN117651255B

CN117651255B - Signal sending method, device and base station

Info

Publication number: CN117651255B
Application number: CN202410114813.7A
Authority: CN
Inventors: 刘献玲; 严宏; 徐晓帆; 李记锋; 郭霄
Original assignee: Shanghai Satellite Internet Research Institute Co ltd
Current assignee: Shanghai Satellite Internet Research Institute Co ltd
Priority date: 2024-01-29
Filing date: 2024-01-29
Publication date: 2024-06-14
Anticipated expiration: 2044-01-29
Also published as: CN117651255A

Abstract

The embodiment of the invention provides a signal sending method, a signal sending device and a base station, which relate to the technical field of mobile communication, and the method comprises the following steps: calculating a first waiting time for transmitting a downlink signaling signal to a target user terminal through a signaling beam; and when the first waiting time length is greater than the preset time length threshold value, sending a downlink signaling signal to the target user terminal through the service beam, and reducing the access time delay of the user terminal.

Description

Signal sending method, device and base station

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to a signal sending method, a signal sending device, and a base station.

Background

The satellite communication system comprises user terminals and satellite stations, which refer to base stations deployed on satellites. In a satellite communication system, a first step in accessing a 5G core network by a User Equipment (UE) is to perform Random Access (RA). In the random access process, the user terminal sends an uplink signaling signal to the base station through a signaling beam. And the base station transmits a downlink signaling signal to the user terminal through a signaling beam based on the received uplink signaling signal. After the random access is completed, the user terminal and the base station establish an uplink synchronization relationship, and subsequently, the user terminal can request the base station to allocate uplink transmission time-frequency resources so as to perform normal service signal transmission.

Since the base station associates other signals (or channels) downstream with the Synchronization signals of the signaling beams and the physical broadcast channel block (SSB) when beamforming is implemented. For example, system Information block type1 (System Information Block Type, SIB 1), other system messages (OSI), paging (Paging Occasion, PO), etc. In order to be compatible with the user terminal with weaker bandwidth supporting capability, the same frequency domain resources are allocated to the signals in the signaling beam, so that the frequency domain resources occupied by the signals in the signaling beam are fixed and the same position, multiplexing cannot be performed on the frequency domain resources of the signaling beam, and the signals can only be mapped to different time slots on the time domain resources of the signaling beam for transmission. In addition, the number of SSBs in the satellite communication system is large, and each SSB needs to increase the time-frequency resources used by other corresponding signals (or channels). In addition, the satellite communication system is further added with the ephemeris system message, and time-frequency resources used by the corresponding ephemeris system message are required to be configured for the SSB. Therefore, other signals in the satellite communication system occupy more time slots in the signaling beam.

However, when the base station transmits a downlink signaling signal to the user terminal on an idle slot in the signaling beam, except for the slots that have been used by other signals that are downlink. The base station needs to wait for the completion of the transmission of other downlink signals to transmit the downlink signaling signals, which results in that the base station needs to wait for a long time to transmit the downlink signaling signals to the user terminal, and increases the access delay of the user terminal.

Disclosure of Invention

The embodiment of the invention aims to provide a signal sending method, a signal sending device, a base station and a storage medium, so as to reduce the waiting time of the base station for sending downlink signaling signals to a user terminal and reduce the access time delay of the user terminal. The specific technical scheme is as follows:

In a first aspect of the present invention, there is provided a signal transmission method, the method being applied to a base station, the method comprising:

Calculating a first waiting time for transmitting a downlink signaling signal to a target user terminal through a signaling beam;

And when the first waiting time length is greater than a preset time length threshold value, sending the downlink signaling signal to the target user terminal through a service beam.

In a possible embodiment, the sending the downlink signaling signal to the target user terminal through a service beam includes:

If the idle service beam does not exist in the plurality of service beams of the base station, determining a first physical position where the target user terminal is located;

acquiring a second physical position of the base station transmitting signals through service beams;

And when the second physical location comprises the first physical location, sending the downlink signaling signal to the target user terminal through the service beam.

In a possible embodiment, the acquiring, as the second physical location, a physical location where the base station transmits a signal through a service beam, includes:

And performing beam hopping according to the beam hopping priorities of the plurality of physical positions in the coverage area of the base station to obtain a second physical position of the base station for transmitting signals through the service beam.

In one possible embodiment, before the step of performing beam hopping according to the beam hopping priorities of the plurality of physical locations within the coverage area of the base station, determining the second physical location where the base station transmits the signal through the service beam, the method further includes:

And determining the beam hopping priority of the first physical location based on the service priority of the first physical location and the user priority of the target user terminal.

In a possible embodiment, before the determining the beam hopping priority of the first physical location based on the traffic priority of the first physical location and the user priority of the target user terminal, the method further comprises:

determining the user priority of the target user terminal based on the waiting transmission times of the downlink signaling signals; and the user priority of the target user terminal is positively correlated with the waiting sending times.

In a possible embodiment, when the second physical location includes the first physical location, sending the downlink signaling signal to the target user terminal through the service beam includes:

and when the second physical location comprises the first physical location, if idle time-frequency resources exist in the service beam, mapping the downlink signaling signals to the idle time-frequency resources in the service beam so as to send the downlink signaling signals to the target user terminal through the service beam.

when the second physical location comprises the first physical location, if no idle time-frequency resource exists in the service beam, determining the user terminal scheduled by the first physical location according to the scheduling priority of each user terminal of the first physical location;

and if the scheduled user terminal comprises the target user terminal, mapping the downlink signaling signal to a time-frequency resource corresponding to the target user terminal in the service beam so as to send the downlink signaling signal to the user terminal through the service beam.

In a possible embodiment, after determining the scheduling priority of each user terminal according to the first physical location, the method further comprises:

if the scheduled user terminal does not comprise the target user terminal, recording the number of waiting transmission times of the downlink signaling signals plus one, and returning to execute the step of calculating the first waiting time for transmitting the downlink signaling signals to the target user terminal through the signaling beam.

In a possible embodiment, before determining the user terminal scheduled by the first physical location according to the scheduling priority of each user terminal of the first physical location, the method further comprises:

Determining the scheduling priority of the target user terminal based on the waiting transmission times of the downlink signaling signals; and the scheduling priority of the target user terminal is positively correlated with the waiting sending times.

In one possible embodiment, after the acquiring the second physical location where the base station transmits signals through a service beam, the method further includes:

And when the second physical location does not comprise the first physical location, recording the number of waiting transmission times of the downlink signaling signals plus one, and returning to execute the step of calculating the first waiting time for transmitting the downlink signaling signals to the target user terminal through the signaling beam.

and if the idle service beam exists in the plurality of service beams of the base station, transmitting the downlink signaling signal to the target user terminal through the idle service beam.

Optionally, the calculating a first waiting duration for sending a downlink signaling signal to the target ue through a signaling beam includes:

if the time slot reserved in the signaling beam for transmitting PO is not used for transmitting PO, or an idle time slot exists in the signaling beam, determining that the first waiting time length for transmitting the downlink signaling signal through the signaling beam is zero;

If a PO is transmitted using a slot reserved in the signaling beam for transmitting the PO and there is no free slot in the signaling beam, determining a first waiting period for transmitting the downlink signaling signal through the signaling beam based on at least one of a slot used by SSB in the signaling beam, a slot used by SIB1, and a slot used by OSI.

In a possible embodiment, after the calculating the first waiting time length for transmitting the downlink signaling signal to the target user terminal through the signaling beam, the method further comprises:

And when the first waiting time is not greater than a preset time threshold, sending the downlink signaling signal to the target user terminal through the signaling beam.

In one possible embodiment, the downlink signaling signal is MSG2, or MSG4.

In a second aspect of the present invention, there is also provided a signal transmitting apparatus, the apparatus being applied to a base station, the apparatus comprising:

The waiting time length determining module is used for calculating a first waiting time length for transmitting a downlink signaling signal to the target user terminal through a signaling beam;

And the first signal sending module is used for sending the downlink signaling signal to the target user terminal by using a service beam when the first waiting time length is greater than a preset time length threshold value.

In a possible embodiment, the first signal sending module is specifically configured to determine, if there is no idle service beam in the plurality of service beams of the base station, a first physical location where the target user terminal is located;

In a possible embodiment, the first signal sending module is specifically configured to perform beam hopping according to beam hopping priorities of a plurality of physical locations within the coverage area of the base station, so as to obtain a second physical location where the base station sends a signal through a service beam.

In one possible embodiment, the apparatus further comprises:

And the beam hopping priority determining module is used for determining the beam hopping priority of the first physical position based on the service priority of the first physical position and the user priority of the target user terminal before the first signal transmitting module performs beam hopping according to the beam hopping priorities of a plurality of physical positions in the coverage area of the base station and determines the second physical position of the signal transmitted by the base station through the service beam.

In one possible embodiment, the apparatus further comprises:

A user priority determining module, configured to perform waiting times based on the downlink signaling signal before the beam hopping priority determining module performs service priority based on the first physical location and user priority of the target user terminal, to determine user priority of the target user terminal; and the user priority of the target user terminal is positively correlated with the waiting sending times.

In a possible embodiment, the first signal sending module is specifically configured to map, when the second physical location includes the first physical location, the downlink signaling signal to an idle time-frequency resource in the service beam if there is an idle time-frequency resource in the service beam, so as to send the downlink signaling signal to the target user terminal through the service beam.

In a possible embodiment, the first signal sending module is specifically configured to, when the second physical location includes the first physical location, determine, if there is no idle time-frequency resource in the service beam, a user terminal scheduled by the first physical location according to a scheduling priority of each user terminal of the first physical location;

In one possible embodiment, the apparatus further comprises:

And the first waiting sending frequency determining module is used for executing the steps of recording the waiting sending frequency plus one of the downlink signaling signals and triggering the waiting time determining module to execute the calculation of the first waiting time for sending the downlink signaling signals to the target user terminal through the signaling beam after the first signal sending module executes the scheduling priority of each user terminal according to the first physical position and determines the scheduled user terminal in the first physical position.

In one possible embodiment, the apparatus further comprises:

A scheduling priority determining module, configured to determine, before the first signal transmitting module performs scheduling priorities of the user terminals according to the first physical location, determining a scheduling priority of the target user terminal by performing waiting times based on the downlink signaling signal before determining the user terminal scheduled by the first physical location; and the scheduling priority of the target user terminal is positively correlated with the waiting sending times.

In one possible embodiment, the apparatus further comprises:

and the second waiting time determining module is used for recording the waiting time of the downlink signaling signal plus one when the second physical position does not comprise the first physical position after the first signal transmitting module executes the second physical position for acquiring the signal transmitted by the base station through the service beam, and triggering the waiting time determining module to execute the step of calculating the first waiting time for transmitting the downlink signaling signal to the target user terminal through the signaling beam.

In a possible embodiment, the first signal sending module is specifically configured to send the downlink signaling signal to the target user terminal through an idle service beam if there is an idle service beam in a plurality of service beams of the base station.

In a possible embodiment, the waiting duration determining module is specifically configured to determine that the first waiting duration for transmitting the downlink signaling signal through the signaling beam is zero if a time slot reserved in the signaling beam for transmitting PO is not used for transmitting PO or an idle time slot exists in the signaling beam;

In one possible embodiment, the apparatus further comprises:

And the second signal sending module is used for sending the downlink signaling signal to the target user terminal through the signaling beam when the first waiting time is not greater than a preset time threshold after the waiting time determining module performs calculation of the first waiting time for sending the downlink signaling signal to the target user terminal through the signaling beam.

In one possible embodiment, the downlink signaling signal is an MSG2 signal, or an MSG4 signal.

The invention also provides a base station, which comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;

a memory for storing a computer program;

and the processor is used for realizing any signal sending method step when executing the program stored in the memory.

The present invention also provides a computer readable storage medium having a computer program stored therein, which when executed by a processor, implements any of the above-described signal transmission method steps.

Embodiments of the present invention also provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform any of the signalling methods described above.

The embodiment of the invention has the beneficial effects that:

the signal sending method provided by the embodiment of the invention calculates a first waiting time for sending a downlink signaling signal to a target user terminal through a signaling beam; and when the first waiting time length is greater than a preset time length threshold value, sending the downlink signaling signal to the target user terminal through a service beam.

Based on the signal sending method provided by the embodiment of the invention, when the first waiting time of the base station for sending the downlink signaling signal to the target user terminal through the signaling beam is longer than the preset time threshold, the downlink signaling signal is sent to the target user terminal through the service beam, and the downlink signaling signal is sent without waiting for the completion of the sending of other downlink signaling signals in the signaling beam, so that the waiting time of the base station for sending the downlink signaling signal to the user terminal can be reduced, and the access time delay of the user terminal can be reduced.

Of course, it is not necessary for any one product or method of practicing the invention to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and other embodiments may be obtained according to these drawings to those skilled in the art.

Fig. 1 is a schematic diagram of an application scenario of a signal transmission method according to an embodiment of the present invention;

fig. 2 is a schematic diagram of association between SSB and other downlink signal time-frequency resources in a signaling beam according to an embodiment of the present invention;

Fig. 3 is a flowchart of a first signal transmission method according to an embodiment of the present invention;

fig. 4 is a flowchart of a second signal transmission method according to an embodiment of the present invention;

fig. 5 is a flowchart of a third signal transmission method according to an embodiment of the present invention;

fig. 6 is a flowchart of a fourth signal transmission method according to an embodiment of the present invention;

fig. 7 is a flowchart of a fifth signal transmission method according to an embodiment of the present invention;

Fig. 8 is a flowchart of a sixth signal transmission method according to an embodiment of the present invention;

fig. 9 is a flowchart of a seventh signal transmission method according to an embodiment of the present invention;

fig. 10 is a block diagram of a signal transmitting apparatus according to an embodiment of the present invention;

fig. 11 is a block diagram of a base station according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by the person skilled in the art based on the present invention are included in the scope of protection of the present invention.

Referring to fig. 1, fig. 1 is a schematic diagram of an application scenario of a signal transmission method according to an embodiment of the present invention. The satellite communication system shown in fig. 1 includes a user terminal and a base station, which is a satellite station deployed on a satellite. When the ue performs random access, the ue transmits an uplink signaling signal MSG1 (Message 1, information 1) to the base station. The MSG1 carries allocated Preamble Sequences (preamble sequence). After receiving the MSG1 sent by the user terminal, the base station sends a corresponding downlink signaling signal MSG2 to the user terminal. After receiving the MSG2 sent by the base station, the ue sends an uplink signaling signal MSG3 to the base station. After receiving the MSG3 sent by the user terminal, the base station sends a corresponding downlink signaling signal MSG4 to the user terminal. After receiving MSG4 sent by base station, user terminal completes random access, and establishes up going synchronization relation with base station. Subsequently, the user terminal can request the base station to allocate the uplink time-frequency resource for normal service data transmission.

For the random access of the ue, a New air interface (NR) allocates a time-frequency domain resource in a signaling beam used for transmitting an uplink signaling signal to the ue, and the ue transmits the uplink signaling signal on the allocated time-frequency resource. And in order to implement beamforming, SSB of each signaling beam needs to be associated with time-frequency resources of random access, that is, SSB index (synchronization signal and physical broadcast channel block index) of the signaling beam is mapped to time-frequency resources allocated for random access in the signaling beam for transmission. Likewise, to achieve beamforming, other signals (or channels) downstream also need to be associated with the SSB of the signaling beam. For example, SIB1, OSI, PO, and other downlink signals. In order to be compatible with the user terminal with weaker bandwidth supporting capability, the same frequency domain resources are allocated to other downlink signals in the signaling beam, so that the frequency domain resources occupied by the other downlink signals in the signaling beam are fixed and at the same position, multiplexing cannot be performed on the frequency domain resources of the signaling beam, and the signals can only be mapped to different time slots on the time domain resources of the signaling beam for transmission.

When the base station sends the downlink signaling signal to the user terminal, the base station can determine the SSB corresponding to the signaling beam according to the preamble sequence carried in the uplink signaling signal sent by the user terminal and the time-frequency position of the preamble sequence in the signaling beam. Therefore, the time-frequency resources used by the downlink signaling signals sent by the base station in the signaling beam may not be in one-to-one correspondence with the SSBs. When the base station transmits the downlink signaling signals to the user terminal in the idle time slots except for the time slots used by the downlink other signals in the signaling beam, the base station needs to wait for the completion of the transmission of the downlink other signals to transmit the downlink signaling signals, which results in that the base station needs to wait for a long time to transmit the downlink signaling signals to the user terminal, and increases the access delay of the user terminal.

Referring to fig. 2, fig. 2 is a schematic diagram of association between SSB and other downlink signal time-frequency resources in a signaling beam according to an embodiment of the present invention. Each 20ms time-frequency resource contains 40 slots in the time domain, each 10ms is a frame of signal, fig. 2 contains 4 frames of signals, and the system frame numbers (SYSTEM FRAME Number, SFN) of each frame of signal are respectively indicated as sfn#0, sfn#1, sfn#2 and sfn#3.

In fig. 2, the rectangle where SSB is reserved for transmitting SSB, the rectangle where SIB1 is reserved for transmitting SIB1, the rectangle where OSI is reserved for transmitting OSI, and the rectangle where PO is reserved for transmitting PO. The blank rectangle indicates an unused free slot.

It can be seen from fig. 2 that the SSB scan period is 10ms and the OSI scan period is 20ms, i.e. when the SSB completes 2 scan periods, the OSI completes 1 scan period. Fig. 2 is only an example, and in an actual terrestrial system, OSI may complete 1 scan period in multiple (2 or more) SSB scan periods, so that OSI may use fewer slots than SSB during 1 SSB scan period.

As can be seen from fig. 2, if the downlink signaling signal is transmitted in an idle Slot after the SSB, it is necessary to wait 4 slots, i.e., from Slot0 to Slot3 of SFN # 0. If the downlink signaling signal is transmitted in an idle slot after SIB1, it is necessary to wait 8 slots, i.e., slot 8 from SFN #0 through slot15 of SFN # 0. If the downlink signaling signal is transmitted in an idle Slot after OSI, it is necessary to wait 4 slots, i.e., from Slot0 to Slot3 of SFN # 1. Correspondingly, the maximum waiting time length of the base station for sending the downlink signaling signals to the user terminal is 8 time slots.

For a satellite communication system, SSBs in the satellite communication system are increased more, and each SSB needs to increase the time-frequency resources used by corresponding other signals (or channels), so that the SSB scanning period is increased obviously due to the increase of the number of SSBs, and the OSI cannot undergo multiple SSB scanning periods to complete one scanning period at this time, and then the time-frequency resources used by the OSI need to be configured in each SSB period. In addition, the satellite communication system adds the ephemeris system message to the ground system, and also needs to configure the time-frequency resource used by the corresponding ephemeris system message for the SSB. Therefore, the time slots occupied by the time-frequency resources of other downlink signals in the satellite communication system are increased, and if the downlink signaling signals (i.e., MSG2 or MSG 4) are transmitted along the above-mentioned terrestrial system, fewer idle time slots can be used. Accordingly, the waiting time for transmitting the downlink signaling signals is obviously longer than that of the ground system. In addition, the satellite communication system itself covers hundreds of kilometers from the ground, the time delay for the far-point single-way communication reaches about 10ms, and if the time delay is additionally increased when the downlink signaling signal is sent, the access time delay of the satellite communication system can be several times or even tens of times that of the ground system, so that the user experience of using the satellite communication system is poor.

In order to solve the above-mentioned problems, an embodiment of the present invention provides a signal transmission method, which is applied to a base station, which is a satellite station in the satellite communication system shown in fig. 1. The base station calculates a first waiting time length for transmitting a downlink signaling signal to a target user terminal through a signaling beam; and when the first waiting time length is greater than a preset time length threshold value, sending a downlink signaling signal to the target user terminal through the service beam. The base station does not need to wait for the completion of the transmission of other downlink signals in the signaling beam to transmit the downlink signaling signals, so that the waiting time of the base station for transmitting the downlink signaling signals to the user terminal can be reduced, and the access time delay of the user terminal can be reduced.

Referring to fig. 3, fig. 3 is a flowchart of a signal transmission method according to an embodiment of the present invention, where the method is applied to a base station in the satellite communication system shown in fig. 1, and the method includes the following steps:

S301: and calculating a first waiting time for transmitting the downlink signaling signals to the target user terminal through the signaling beam.

S302: and when the first waiting time length is greater than a preset time length threshold value, sending a downlink signaling signal to the target user terminal through the service beam.

For step S301, in the random access process of the downlink signaling signal for the ue, the base station sends a downlink signaling signal MSG2 or a downlink signaling signal MSG4 to the ue.

The base station calculates a first waiting time length for transmitting a downlink signaling signal to the target user terminal through the signaling beam based on the used time-frequency resource in the signaling beam.

The time-frequency resources already used in the signaling beam include: the time slots in the signaling beam that have been used by other signals (or channels) downstream. For example, slots in the signaling beam that have been used by signals such as SSB, SIB1, OSI, PO, and ephemeris system messages. In fig. 2, SSB uses 4 slots in SFN #0 and PO uses 8 slots in SFN # 1.

When the base station needs to send the downlink signaling signal to the target user terminal, the base station determines the distribution condition of the used time slots in the signaling beam, and can also determine the unused idle time slots in the signaling beam, wherein the idle time slots can be used for sending the downlink signaling signal. And the base station further obtains a first waiting duration for transmitting the downlink signaling signal to the target user terminal through the signaling beam based on the idle time slot capable of being used for transmitting the downlink signaling signal.

In a possible embodiment, referring to fig. 4, on the basis of fig. 3, step S301 may include the steps of:

S3011: if the time slot reserved in the signaling beam for transmitting the PO is not used for transmitting the PO, or an idle time slot exists in the signaling beam, the first waiting time length for transmitting the downlink signaling signal through the signaling beam is determined to be zero.

S3012: if a PO is transmitted using a slot reserved in the signaling beam for transmitting the PO and there is no free slot in the signaling beam, determining a first waiting period for transmitting a downlink signaling signal through the signaling beam based on at least one of a slot used by SSB in the signaling beam, a slot used by SIB1, and a slot used by OSI.

If the time slot reserved for transmitting the PO in the unused signaling beam is used for transmitting the PO, which indicates that the time slot reserved for transmitting the PO is an unused idle time slot, the base station can directly transmit the downlink signaling signal by using the time slot originally reserved for transmitting the PO, i.e. the downlink signaling signal can be transmitted without waiting. The base station determines that the first waiting time length for transmitting the downlink signaling signals through the signaling beam is zero. Subsequently, the base station may directly map the downlink signaling signal to the timeslot originally reserved for transmitting the PO, so as to transmit the downlink signaling signal to the target user terminal through the signaling beam.

If there are unused free slots in the signaling beam, the downlink signaling signal can be sent without waiting. Thus, the base station determines that the first waiting period for transmitting the downlink signaling signal over the signaling beam is zero. Subsequently, the base station directly maps the downlink signaling signals to unused idle time slots to send the downlink signaling signals to the target user terminal through the signaling beam.

If the time slot reserved for transmitting the PO in the signaling beam is used for transmitting the PO, the base station cannot transmit the downlink signaling signal by using the time slot originally reserved for transmitting the PO, and the unused idle time slot does not exist in the signaling beam, and cannot transmit the downlink signaling signal by using the idle time slot. The first waiting period for the base station to transmit the downlink signaling signal over the signaling beam is determined based on at least one of the time slots used by the SSB, the time slots used by SIB1, the time slots used by OSI, and the time slots used by the system message of the ephemeris.

For example, if the downlink signaling signal is transmitted using an idle slot subsequent to the slot used by the SSB in the signaling beam, the first waiting period is the number of slots used by the SSB. If the downlink signaling signal is transmitted using an idle slot subsequent to the slot used by SIB1 in the signaling beam, the first waiting period is the number of slots used by SIB 1. If the downlink signaling signal is transmitted using an idle slot subsequent to the slot used by the OSI in the signaling beam, the first waiting period is the number of slots used by the OSI. If the downlink signaling signal is transmitted using an idle slot subsequent to the slot used by the system message for the ephemeris in the signaling beam, the first waiting period is the number of slots used by the system message for the ephemeris.

Based on the above processing, the first waiting time length for the base station to wait for sending the downlink signaling signal through the signaling beam can be determined, and then the downlink signaling signal can be sent to the target user terminal through the service beam when the first waiting time length is greater than the preset time length threshold value, so that the access delay of the user terminal is reduced.

For step S302, the preset duration threshold may be empirically set by a technician. When the first waiting time length is represented by the number of time slots, the preset time length threshold may also be represented by the number of time slots. For example, the preset duration threshold may be N time slots, where N is a positive integer greater than or equal to 1, and the embodiment of the present invention is not specifically limited.

If the first waiting time is longer than the preset time threshold, which indicates that the downlink signaling signal is sent through the signaling beam, the waiting time is longer, which can lead to higher access time delay of the user terminal, and the base station can send the downlink signaling signal to the target user terminal through the service beam.

In one possible embodiment, referring to fig. 5, on the basis of fig. 3, step S302 may include the steps of:

s3021: if the idle service beam does not exist in the service beams of the base station, determining a first physical position where the target user terminal is located.

S3022: and acquiring a second physical location of the signal transmitted by the base station through the service beam.

S3023: and when the second physical location comprises the first physical location, transmitting a downlink signaling signal to the target user terminal through the service beam.

If the idle service beam does not exist in the plurality of service beams of the base station, which indicates that the idle service beam is not used for transmitting downlink signaling signals, the base station determines a first physical position where the target user terminal is located. For example, a first physical location where the target user terminal is located is determined based on a channel used by a physical random access channel (PhysicalRandom ACCESS CHANNEL, PRACH) in a signaling beam that transmits an uplink signaling signal.

Then, a second physical location is acquired where the base station transmits signals over the traffic beam. And then, carrying out corresponding processing according to whether the second physical position comprises the first physical position.

In one possible embodiment, step S3022 may include the steps of: and performing beam hopping according to the beam hopping priorities of the plurality of physical positions in the coverage area of the base station to obtain a second physical position of the base station for transmitting signals through the service beam.

Because the coverage area of the base station is wider, and the time-frequency resources of the service beam are limited, the service beam cannot serve all user terminals in the coverage area of the base station at the same time. Therefore, the beam hopping technique is used to transmit traffic signals. The beam hopping technique refers to that a service area where a base station sends signals by using a service beam is continuously changed in the whole coverage area of the base station, a user terminal in the whole coverage area of the base station is served in a time-sharing mode, each service area which can be covered by the service beam can be called a wave position, and all user terminals in the whole coverage area of the service base station are realized in a mode of covering different wave positions in different time slots.

When the base station hops beams, the physical position with higher hopping beam priority is determined to be the second physical position of the base station transmitting signals through the service beams according to the sequence of the hopping beam priority of each physical position in the coverage range from high to low.

In one possible embodiment, before the base station hops according to the hopping priorities of the plurality of physical locations within the coverage area of the base station, the base station may further determine the hopping priority of the first physical location as follows:

When the base station needs to send the downlink signaling signal through the service beam, the beam hopping priority of the first physical location where the target user terminal is located needs to be increased, so that the service beam can hop to the first physical location.

And, the beam hopping priority of one physical location is determined based on the traffic priorities of the respective user terminals that the physical location is already on-line. The traffic priority of the first physical location is determined based on traffic priorities of the respective user terminals for which the first physical location is already online. And the target user terminal is a user terminal newly accessed in the first physical location and is not an already online user terminal in the first physical location. If the beam is hopped according to the priority of the beam hopped for each physical location, the beam is hopped only according to the service priority of the user terminal already on-line, and may not hop to the first physical location. Accordingly, the hop beam priority of the first physical location is determined based on the traffic priority of the first physical location and the user priority of the target user terminal.

In one implementation, a weighted sum of the service priority stack of the first physical location and the user priority of the target user terminal is calculated to obtain a beam hopping priority of the first physical location. Based on the above processing, the beam hopping priority of the first physical location may be increased, so that the service beam can hop to the first physical location, that is, the base station determines that the second physical location where the signal is sent through the service beam includes the first physical location, so as to further reduce the receiving delay of the user terminal.

In one possible embodiment, the base station may also determine the user priority of the target user terminal in the following manner: and determining the user priority of the target user terminal based on the waiting transmission times of the downlink signaling signals. The user priority of the target user terminal is positively correlated with the waiting number of times.

In one implementation manner, the base station locally records a corresponding relation between the frequency interval and the user priority, and in the corresponding relation, the base station determines the user priority corresponding to the frequency interval to which the waiting transmission frequency of the downlink signaling signal belongs, so as to obtain the user priority of the target user terminal.

The user priority of the target user terminal is positively correlated with the number of waiting transmissions. That is, in the correspondence between the number of times interval and the user priority, the higher the upper limit value of the number of times interval, the higher the corresponding user priority.

For example, the user priorities of the user terminals are divided from high to low into: w1, W2 and W3. In the correspondence between the number of times intervals and the user priority, the preset number of times intervals [ s1, s2] correspond to W1, the preset number of times intervals [ s3, s4] correspond to W2, and the preset number of times intervals [ s4, s5] correspond to W3. If the number of waiting transmission times of the downlink signaling signal belongs to s3, s4, the user priority of the target user terminal is W2. If the traffic priority of the first physical location is denoted as Wa, the beam hopping priority of the first physical location is wd=wa+w2.

In another implementation, the base station locally records the initial user priority of the user terminal. And the base station calculates the product of the waiting sending times of the downlink signaling signals and the initial user priority to obtain the user priority of the target user terminal.

Illustratively, the initial user priority is denoted as W1 and the traffic priority of the first physical location is denoted as Wa. When the base station waits for sending the downlink signaling signal for the first time, the user priority of the target user terminal is W1, and then the beam hopping priority wd=wa+w1 of the first physical location. When the base station waits for transmitting the downlink signaling signal for the second time, the user priority of the target user terminal is 2×w1, and then the beam hopping priority wd=wa+2×w1 of the first physical location.

Based on the above processing, the user priority of the target user terminal is positively correlated with the waiting number of times of transmission, and the longer the waiting time of the downlink signaling signal is, the larger the waiting number of times of transmission is, the higher the user priority of the target user terminal is. Subsequently, based on the service priority of the first physical location and the user priority of the target user terminal, the beam hopping priority of the first physical location is increased, so that when the base station hops beams according to the beam hopping priorities of all physical locations in the coverage area, the determined second physical location comprises the first physical location, and further, a downlink signaling signal can be sent to the target user terminal through the service beam, and the access delay of the user terminal is further reduced.

Further, when the second physical location where the base station transmits the signal through the service beam includes the first physical location where the target user terminal is located, the base station transmits a downlink signaling signal to the target user terminal through the service beam.

In one possible embodiment, referring to fig. 6, on the basis of fig. 5, step S3023 may include the steps of:

S30231: and when the second physical location comprises the first physical location, if no idle time-frequency resource exists in the service beam, determining the user terminal scheduled by the first physical location according to the scheduling priority of each user terminal of the first physical location.

S30232: if the scheduled user terminal comprises the target user terminal, mapping the downlink signaling signal to a time-frequency resource corresponding to the target user terminal in the service beam, so as to send the downlink signaling signal to the user terminal through the service beam.

If the second physical location includes the first physical location, indicating that the base station will send a signal to the user terminal of the first physical location through the service beam, the base station determines whether unused idle time-frequency resources exist in the service beam. The idle time-frequency resources refer to time slots that are unused except for time-frequency resources used to transmit traffic signals to other user terminals.

If the idle time-frequency resources do not exist in the service beam, the base station determines that the user terminal with higher scheduling priority is the scheduled user terminal according to the sequence of the scheduling priority of each user terminal with the first physical position from high to low, wherein the idle time-frequency resources are used for sending downlink signaling signals. The scheduled user terminals, i.e. the user terminals whose base stations can transmit signals using time-frequency resources in the traffic beam.

In one possible embodiment, before determining the user terminal scheduled by the base station at the first physical location, the base station may further determine the scheduling priority of the target user terminal in the following manner:

And determining the scheduling priority of the target user terminal based on the waiting transmission times of the downlink signaling signals. Wherein, the scheduling priority of the target user terminal is positively correlated with the waiting number of times.

Because the first physical location includes a plurality of user terminals, when the base station sends service signals to the user terminals in the first physical location, according to the sequence from high to low of the scheduling priority of each user terminal in the first physical location, it is determined that the user terminal with higher scheduling priority is the scheduled user terminal, in order to send downlink signaling signals to the target user terminal as soon as possible, based on the waiting sending times of the downlink signaling signals, the scheduling priority of the target user terminal is increased, so that when the next service beam jumps to the first physical location, the service beam can be scheduled to the target user terminal, and the downlink signaling signals can be sent to the target user terminal through the service beam, so that the access delay of the user terminal can be further reduced.

In one implementation, the scheduling priority of the target ue is adjusted upward by one scheduling priority every time the number of waiting transmissions of the downlink signaling signal increases by a preset number of times. The preset number may be 1 or 2, but is not limited thereto.

For example, the scheduling priorities of the user terminals are respectively from high to low: w1, W2 and W3. When the base station transmits the downlink signaling signals for the first time, the scheduling priority of the target user terminal is W3, and when the next time the service beam jumps to the first physical position, the waiting transmission times of the downlink signaling signals are increased once, the scheduling priority of the target user terminal is adjusted upwards by one scheduling priority, namely, the scheduling priority of the target user terminal is adjusted to W2.

In another implementation manner, the base station locally records a corresponding relation between the frequency interval and the priority adjustment amount, and in the corresponding relation, the base station determines the priority adjustment amount corresponding to the frequency interval to which the waiting transmission frequency of the downlink signaling signal belongs, so as to obtain the priority adjustment amount of the target user terminal. And calculating the sum of the scheduling priority of the target user terminal and the priority adjustment quantity of the target user terminal to obtain the adjusted scheduling priority of the target user terminal.

For example, the scheduling priority of the target user terminal is W1, the adjustment amount of the scheduling priority of the target user terminal is determined to be W2 according to the corresponding relationship between the frequency interval and the priority adjustment amount, and when the service beam jumps to the first physical location next time, the scheduling priority of the target user terminal is ws=w1+w2.

Further, the base station determines whether the scheduled user terminal includes a target user terminal, and if the scheduled user terminal includes the target user terminal, which indicates that a time-frequency resource for transmitting a signal to the target user terminal exists in the service beam, the base station maps the downlink signaling signal to the time-frequency resource corresponding to the target user terminal in the service beam, so as to transmit the downlink signaling signal to the user terminal through the service beam.

In a possible embodiment, if the scheduled user terminal does not include the target user terminal, the number of waiting transmissions of the downlink signaling signal is recorded plus one, and the step of calculating the first waiting time period for transmitting the downlink signaling signal to the target user terminal through the signaling beam is performed in return.

If the scheduled user terminal does not comprise the target user terminal, the scheduled user terminal indicates that the service beam does not have time-frequency resources for transmitting signals to the target user terminal, namely the downlink signaling signals cannot be transmitted to the target user terminal through the service beam, and the waiting transmission times of the downlink signaling signals are recorded and increased by one.

The base station recalculates the first waiting time length needed to wait for transmitting the downlink signaling signals through the signaling beam, and transmits the downlink signaling signals to the target user terminal through the signaling beam under the condition that the first waiting time length is not greater than a preset time length threshold. And under the condition that the first waiting time length is greater than a preset time length threshold, when the second physical position of the base station for transmitting signals through the service beam comprises the first physical position of the target user terminal according to the beam hopping priority of each physical position in the coverage area of the base station, if idle time-frequency resources exist in the service beam, mapping the downlink signaling signals to the idle time-frequency resources in the service beam so as to transmit the downlink signaling signals to the target user terminal through the service beam. If no idle time-frequency resource exists in the service beam, determining the scheduling priority of the target user terminal based on the waiting transmission times of the downlink signaling signals, further determining the scheduled user terminal according to the scheduling priority of each user terminal of the first physical position, and the like until the downlink signaling signals are transmitted to the target user terminal.

In a possible embodiment, when the second physical location includes the first physical location, if there are idle time-frequency resources in the service beam, the base station directly maps the downlink signaling signal to the idle time-frequency resources (i.e. idle time slots) in the service beam, so as to send the downlink signaling signal to the target user terminal through the service beam, thereby reducing access delay of the user terminal.

In a possible embodiment, after step S3022, the method may further comprise the steps of: and when the second physical location does not comprise the first physical location, recording the number of waiting transmission times of the signaling signal plus one, and returning to execute the step of calculating the first waiting time for transmitting the downlink signaling signal to the target user terminal through the signaling beam.

If the second physical location does not include the first physical location, which indicates that the base station cannot send a signal to the user terminal in the first physical location through the service beam and cannot send a downlink signaling signal to the target user terminal through the service beam, the base station records the number of waiting sending times of the signaling signal plus one.

The base station recalculates the first waiting time length of the base station for transmitting the downlink signaling signals through the signaling beam, and transmits the downlink signaling signals to the target user terminal through the signaling beam when the first waiting time length is not greater than the preset time length threshold. And when the first waiting time length is greater than the preset time length threshold, determining the beam hopping priority of the first physical position based on the waiting transmission times of the downlink signaling signals, continuing to perform the next beam hopping based on the beam hopping priority of the first physical position, and the like until the downlink signaling signals are transmitted to the target user terminal.

Based on the above processing, when the second physical location does not include the first physical location, the hop beam priority of the first physical location is increased by recording the waiting times of the downlink signaling signals, so that the subsequent service beam can hop to the first physical location, and further the downlink signaling signals are sent to the target user terminal through the service beam, thereby reducing the access delay of the user terminal.

In a possible embodiment, step S302 may further include the steps of: and if the idle service beam exists in the plurality of service beams of the base station, transmitting a downlink signaling signal to the target user terminal through the idle service beam.

When the first waiting time length is greater than the preset time length threshold, if idle service beams exist in the plurality of service beams of the base station, the base station directly maps the downlink signaling signals to time-frequency resources of the idle service beams so as to send the downlink signaling signals to the target user terminal through the idle service beams, and the access time delay of the user terminal is reduced.

In a possible embodiment, on the basis of fig. 3, referring to fig. 7, after step S301, the method may further comprise the steps of:

S303: and when the first waiting time length is not greater than the preset time length threshold value, sending a downlink signaling signal to the target user terminal through the signaling beam.

If the first waiting time is not greater than the preset time threshold, which indicates that the downlink signaling signal is sent through the signaling beam without waiting for a longer time and without causing a higher access delay of the user terminal, the base station may map the downlink signaling signal to an idle time slot in the signaling beam directly, so as to send the downlink signaling signal to the target user terminal through the signaling beam.

In one possible embodiment, after sending the downlink signaling signal to the target ue, the base station may adjust the beam hopping priority of the first physical location where the target ue is located to the service priority of the first physical location, so as to avoid affecting the base station to send the service signal to other ues due to increasing the beam hopping priority of the first physical location.

Referring to fig. 8, fig. 8 is a flowchart of a signal transmission method according to an embodiment of the present invention.

S801: MSG2/MSG4 transmission defaults to signaling beam transmission.

In this step, MSG2/MSG4 is the downlink signaling signal in the previous embodiment. When the base station needs to send MSG2/MSG4 to the target user terminal, the base station defaults to send MSG2/MSG4 to the target user terminal through a signaling beam.

S802: the latency of transmitting MSG2/MSG4 using the signaling beam is calculated.

In this step, the waiting time is the first waiting time in the foregoing embodiment, and the base station calculates the first waiting time required for the base station to wait for transmitting MSG2/MSG4 through the signaling beam based on the time-frequency resource already used in the signaling beam.

S803: when waiting for the transmission of the MSG2/MSG4 using the signaling beam exceeds the threshold, consider the use of the existing traffic beam to transmit the MSG2/MSG4 in advance.

In this step, the threshold is the preset duration threshold in the foregoing embodiment. And when the first waiting time length for transmitting the downlink signaling signals by using the signaling beam is longer than a preset time length threshold, transmitting the downlink signaling signals to the target user terminal by using the existing service beam based on the beam hopping technology.

S804: and when the idle service beam exists, transmitting by using the idle service beam.

In this step, when the service beam is used to send the downlink signaling signal to the target user terminal, it is determined whether there is an idle service beam in the plurality of service beams of the base station, and if there is an idle service beam in the plurality of service beams of the base station, the idle service beam is directly used to send the downlink signaling signal to the target user terminal.

S805: and when no idle service beam exists, the beam hopping module adds the superimposed user priority based on the original beam priority.

In this step, the beam hopping module is a functional module in the base station for implementing beam hopping. The original beam priority is the service priority of the first physical location where the user terminal is located in the foregoing embodiment.

The beam hopping module is used for performing beam hopping based on the beam hopping priority of each physical position in the coverage area of the base station. If the plurality of service beams of the base station do not have idle service beams, the user priority of the superimposed user terminal is newly increased on the basis of the original beam priority of the first physical position through the beam hopping module, for example, the sum value of the user priority of the target user terminal and the original beam priority of the first physical position is calculated, and the beam hopping priority of the first physical position is obtained.

And then, the base station determines the second physical position of the signal transmitted by the base station through the service beam according to the jump beam priority of each physical position in the coverage area of the base station. And when the second physical location comprises the first physical location, transmitting a downlink signaling signal to the target user terminal through the service beam.

Based on the signal transmission method provided by the embodiment of the invention, whether the MSG2/MSG4 is transmitted through the service beam can be determined according to the waiting time of transmitting the MSG2/MSG4 through the signaling beam, when the waiting time is longer than the preset threshold, the MSG2/MSG4 is transmitted in advance through the service beam, the problem that the waiting time of transmitting the MSG2/MSG4 through the signaling beam is too long can be solved, and the access time delay of the user terminal can be effectively reduced.

Referring to fig. 9, fig. 9 is a flowchart of a signal transmission method according to an embodiment of the present invention.

S901: the base station side maintains the corresponding relation between the signaling beam using channel and the coverage wave position.

In this step, the base station locally records the correspondence between the signaling beam usage channel and the coverage wave bit. The coverage wave bits represent the physical location within the coverage area of the base station. Correspondingly, when receiving the uplink signaling signal of the target user terminal, the base station may determine the first physical location where the target user terminal is located based on a channel used by the PRACH in the signaling beam that transmits the uplink signaling signal.

S902: the base station needs to transmit MSG2/MSG4 at a certain physical location, by default using signaling beam transmission.

In this step, MSG2/MSG4 is the downlink signaling signal in the previous embodiment. The base station needs to send MSG2/MSG4 to the target user terminal in the first physical location, and sends MSG2/MSG4 to the target user terminal by default through the signaling beam.

S903: the latest waiting time from the next transmission capable MSG2/MSG4 when transmitting with the signaling beam is calculated.

In this step, the waiting time is the first waiting time in the foregoing embodiment, and the base station calculates the first waiting time required for the base station to wait for sending MSG2/MSG4 through the signaling beam based on the resource arrangement situation of the signaling beam or the time-frequency resource used in the signaling beam.

S904: it is determined whether the waiting time is greater than the threshold, if yes, step S905 is performed, and if no, step S906 is performed.

In this step, the threshold is the preset duration threshold in the foregoing embodiment. And judging whether the first waiting time length of the downlink signaling signals transmitted by using the signaling beams is greater than a preset time length threshold value or not, so as to perform corresponding processing according to a judging result.

For example, the first waiting time length is WaitTimeComChan and the preset threshold is ThrWaiTimComCha. ThrWaiTimComCha is a configurable constant equal to or greater than 1. If WaitTimeComChan is greater than ThrWaiTimComCha, it indicates that the waiting time for transmitting MSG2/MSG4 using the signaling beam is longer, and step S905 is performed. If WaitTimeComChan is not greater than ThrWaiTimComCha, it indicates that the waiting time for transmitting MSG2/MSG4 using the signaling beam is short, and step S906 is performed.

S905: the beam hopping module is notified that a physical location is to be sent MSG2/MSG4.

In this step, the beam hopping module is a functional module in the base station for implementing beam hopping. And when the first waiting time length of the MSG2/MSG4 sent by using the signaling beam is larger than a preset time length threshold, calling a beam hopping module, so that the beam hopping module knows that the base station needs to send the MSG2/MSG4 to the first physical position of the target user.

S906: MSG2/MSG4 is sent over the signaling beam.

In this step, when the first waiting duration of transmitting MSG2/MSG4 using the signaling beam is not greater than the preset duration threshold, the signaling beam is directly used to transmit MSG2/MSG4.

S907: it is determined whether there is an idle traffic beam, if yes, step S909 is executed, and if no, step S908 is executed.

In this step, it is determined by the beam hopping module whether there is an idle service beam among the plurality of service beams of the base station, and if there is an idle service beam among the plurality of service beams of the base station, step S909 is performed. If there is no free traffic beam among the plurality of traffic beams of the base station, step S908 is performed.

S908: the beam hopping module adds the superimposed user priority.

In this step, when it is determined by the beam hopping module that there is no idle service beam in the plurality of service beams of the base station, the beam hopping module is used to add the user priority of the superimposed user terminal based on the original beam priority of the first physical location where the user terminal is located, for example, calculate the sum of the user priority of the target user terminal and the original beam priority of the first physical location, and obtain the beam hopping priority of the first physical location where the target user terminal is located.

S909: MSG2/MSG4 is transmitted over the idle traffic beam.

In this step, when it is determined by the beam hopping module that there are idle service beams among the plurality of service beams of the base station, the idle service beams are directly used to transmit downlink signaling signals to the target user terminal.

S910: it is determined whether or not the service beam jumps to the physical location at the current scheduling time, if so, step S912 is performed, and if not, step S911 is performed.

In this step, the base station determines the second physical location of the signal transmitted by the base station through the service beam at the current scheduling time according to the beam hopping priority of each physical location within the coverage area of the base station. I.e. determining the second physical location to which the service beam hops at the current moment. The base station determines whether the second physical location includes the first physical location. If the second physical location does not include the first physical location, step S911 is performed. If the second physical location includes the first physical location, step S912 is performed.

S911: waiting for the next scheduling instant.

In this step, if the second physical location does not include the first physical location, the current time cannot send the downlink signaling signal to the target user terminal through the service beam, and then waits for the next scheduling time, that is, continues to wait for the base station to perform the next beam jump. And re-calculating a first waiting time length of waiting required for transmitting the MSG2/MSG4 through the signaling beam, so as to perform corresponding processing according to the calculated first waiting time length.

S912: it is determined whether or not there is time-frequency resource transmission MSG2/MSG4 at the end of the service beam scheduling, if yes, step S914 is executed, and if no, step S913 is executed.

In this step, when the second physical location includes the first physical location, the base station determines whether there are idle time-frequency resources in the service beam capable of transmitting MSG2/MSG4. If there are free time-frequency resources in the service beam that can transmit MSG2/MSG4, step S914 is performed. If no free time-frequency resource in the service beam can transmit MSG2/MSG4, step S913 is performed.

S913: the UE scheduling priority is scheduled upward.

In this step, if no idle time-frequency resource in the service beam can transmit MSG2/MSG4, the scheduling priority of the target ue is increased based on the number of waiting transmissions of the downlink signaling signal. And continues to wait for the base station to make the next hop beam. And re-calculating a first waiting time length of waiting required for transmitting the MSG2/MSG4 through the signaling beam, so as to perform corresponding processing according to the calculated first waiting time length.

S914: MSG2/MSG4 is transmitted over the traffic beam.

In this step, if there are idle time-frequency resources in the service beam capable of transmitting MSG2/MSG4, the MSG2/MSG4 is directly mapped to the idle time-frequency resources in the service beam, and the MSG2/MSG4 is transmitted to the target user terminal through the service beam.

S915: the beam hopping module MSG2/MSG4 is notified that signaling has been sent.

In this step, after the transmission of the MSG2/MSG4 to the target ue is completed, the beam hopping module MSG2/MSG4 is notified that the signaling has been transmitted, so that the beam hopping module adjusts the beam hopping priority of the first physical location where the target ue is located back to the service priority, thereby avoiding affecting the subsequent transmission of the service signal to the ue.

Based on the signal sending method provided by the embodiment of the invention, whether the MSG2/MSG4 is sent through the service beam can be determined according to the waiting time of sending the MSG2/MSG4 through the signaling beam, when the waiting time is longer than the preset threshold, the MSG2/MSG4 is sent in advance through the service beam, the problem that the waiting time of sending the MSG2/MSG4 through the signaling beam is too long can be solved, and the access time delay of the user terminal can be effectively reduced.

Referring to fig. 10, fig. 10 is a block diagram of a signal transmitting apparatus according to an embodiment of the present invention, where the apparatus is applied to a base station, and the apparatus includes:

a waiting duration determining module 1001, configured to calculate a first waiting duration for sending a downlink signaling signal to a target user terminal through a signaling beam;

a first signal sending module 1002, configured to send the downlink signaling signal to the target user terminal using a service beam when the first waiting time period is longer than a preset time period threshold.

In a possible embodiment, the first signal sending module 1002 is specifically configured to determine, if there is no idle service beam in the plurality of service beams of the base station, a first physical location where the target user terminal is located;

In a possible embodiment, the first signal sending module 1002 is specifically configured to perform beam hopping according to beam hopping priorities of a plurality of physical locations within the coverage area of the base station, so as to obtain a second physical location where the base station sends a signal through a service beam.

In one possible embodiment, the apparatus further comprises:

A beam hopping priority determining module, configured to perform beam hopping according to beam hopping priorities of a plurality of physical locations within a coverage area of the base station before the first signal transmitting module 1002 determines a second physical location where the base station transmits a signal through a service beam, and determine a beam hopping priority of the first physical location based on the service priority of the first physical location and the user priority of the target user terminal.

In one possible embodiment, the apparatus further comprises:

In a possible embodiment, the first signal sending module 1002 is specifically configured to map, when the second physical location includes the first physical location, the downlink signaling signal to an idle time-frequency resource in the service beam if there is an idle time-frequency resource in the service beam, so as to send the downlink signaling signal to the target user terminal through the service beam.

In a possible embodiment, the first signal sending module 1002 is specifically configured to, when the second physical location includes the first physical location, determine, if there is no idle time-frequency resource in the service beam, a user terminal scheduled by the first physical location according to a scheduling priority of each user terminal of the first physical location;

In one possible embodiment, the apparatus further comprises:

a first waiting number of transmission determining module, configured to, after the first signal transmitting module 1002 performs scheduling priority according to each ue in the first physical location, determine that the ue scheduled in the first physical location does not include the target ue, record the number of waiting transmissions of the downlink signaling signal plus one, and trigger the waiting duration determining module 1001 to perform a step of calculating a first waiting duration for transmitting the downlink signaling signal to the target ue through a signaling beam.

In one possible embodiment, the apparatus further comprises:

A scheduling priority determining module, configured to determine, before the first signal sending module 1002 performs scheduling priorities of user terminals according to the first physical location, determining user terminals scheduled by the first physical location, perform waiting times based on the downlink signaling signals, and determine scheduling priorities of the target user terminals; and the scheduling priority of the target user terminal is positively correlated with the waiting sending times.

In one possible embodiment, the apparatus further comprises:

a second waiting number of times of transmission determining module, configured to, after the first signal sending module 1002 performs obtaining a second physical location where the base station sends a signal through a service beam, record, when the second physical location does not include the first physical location, one more than the waiting number of times of transmission of the downlink signaling signal, and trigger the waiting duration determining module 1001 to perform a step of calculating a first waiting duration for sending the downlink signaling signal to the target user terminal through a signaling beam.

In a possible embodiment, the first signal sending module 1002 is specifically configured to send the downlink signaling signal to the target user terminal through an idle service beam if there is an idle service beam in a plurality of service beams of the base station.

In a possible embodiment, the waiting duration determining module 1001 is specifically configured to determine that the first waiting duration for transmitting the downlink signaling signal through the signaling beam is zero if a time slot reserved in the signaling beam for transmitting PO is not used for transmitting PO or an idle time slot exists in the signaling beam;

In one possible embodiment, the apparatus further comprises:

And the second signal sending module is configured to, after the waiting duration determining module 1001 performs calculation of a first waiting duration for sending a downlink signaling signal to a target user terminal through a signaling beam, perform sending the downlink signaling signal to the target user terminal through the signaling beam when the first waiting duration is not greater than a preset duration threshold.

Based on the signal transmitting device provided by the embodiment of the invention, when the first waiting time of the base station for transmitting the downlink signaling signals to the target user terminal through the signaling beam is longer than the preset time threshold, the downlink signaling signals are transmitted to the target user terminal through the service beam, and the downlink signaling signals are transmitted without waiting for the completion of the transmission of other downlink signaling signals in the signaling beam, so that the waiting time of the base station for transmitting the downlink signaling signals to the user terminal can be reduced, and the access time delay of the user terminal can be reduced.

The embodiment of the invention also provides a base station, as shown in fig. 11, which comprises a processor 1101, a communication interface 1102, a memory 1103 and a communication bus 1104, wherein the processor 1101, the communication interface 1102 and the memory 1103 complete communication with each other through the communication bus 1104;

A memory 1103 for storing a computer program;

the processor 1101 is configured to execute a program stored in the memory 1103, and implement the following steps:

The communication bus mentioned by the base station may be a peripheral component interconnect standard (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.

The communication interface is used for communication between the base station and other devices.

The Memory may include random access Memory (Random Access Memory, RAM) or may include Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.

The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but may also be a digital signal Processor (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components.

In yet another embodiment of the present invention, there is also provided a computer readable storage medium having stored therein a computer program which when executed by a processor implements the steps of any of the signaling methods described above.

In yet another embodiment of the present invention, there is also provided a computer program product containing instructions that, when run on a computer, cause the computer to perform any of the signaling methods of the above embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present invention, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk Solid STATE DISK (SSD)), etc.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for apparatus, base station, computer readable storage medium and computer program product embodiments, the description is relatively simple, as it is substantially similar to method embodiments, with reference to the parts of the description of method embodiments being relevant.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A method of signaling, the method being applied to a base station, the method comprising:

When the first waiting time length is greater than a preset time length threshold value, sending the downlink signaling signal to the target user terminal through a service beam;

Wherein the first latency is determined based on time-frequency resources that have been used in the signaling beam; the time-frequency resources used in the signaling beam include: at least one of a slot used by SSB, a slot used by SIB1, a slot used by OSI, a slot used by PO, and a slot used by an ephemeris system message in the signaling beam.

2. The method of claim 1, wherein the transmitting the downlink signaling signal to the target user terminal via a traffic beam comprises:

3. The method of claim 2, wherein the obtaining the physical location where the base station transmits the signal via the service beam as the second physical location comprises:

4. A method according to claim 3, wherein prior to said determining a second physical location at which said base station transmits signals via a traffic beam by hopping beams according to hopping beam priorities for a plurality of physical locations within the coverage area of said base station, said method further comprises:

5. The method of claim 4, wherein prior to determining the beam-hopping priority for the first physical location based on the traffic priority for the first physical location and the user priority for the target user terminal, the method further comprises:

6. The method of claim 2, wherein said transmitting the downlink signaling signal to the target user terminal over the traffic beam when the second physical location comprises the first physical location comprises:

7. The method of claim 2, wherein said transmitting the downlink signaling signal to the target user terminal over the traffic beam when the second physical location comprises the first physical location comprises:

8. The method of claim 7, wherein after determining the scheduled user terminals in the first physical location according to the scheduling priority of each user terminal in the first physical location, the method further comprises:

9. The method of claim 8, wherein prior to determining the scheduled user terminal for the first physical location according to the scheduling priority of each user terminal for the first physical location, the method further comprises:

10. The method of claim 2, wherein after said acquiring a second physical location where said base station transmits signals over a traffic beam, said method further comprises:

11. The method of claim 1, wherein the transmitting the downlink signaling signal to the target user terminal via a traffic beam comprises:

12. The method of claim 1, wherein the calculating the first waiting time period for transmitting the downlink signaling signal to the target user terminal via the signaling beam comprises:

13. The method according to claim 1, wherein after said calculating a first latency for transmitting a downlink signaling signal to a target user terminal over a signaling beam, the method further comprises:

14. The method according to any of claims 1 to 13, wherein the downlink signaling signal is MSG2, or MSG4.

15. A signal transmission apparatus, the apparatus being applied to a base station, the apparatus comprising:

A first signal sending module, configured to send the downlink signaling signal to the target user terminal by using a service beam when the first waiting time period is longer than a preset time period threshold;

16. The base station is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;

a memory for storing a computer program;

a processor for carrying out the method steps of any one of claims 1 to 14 when executing a program stored on a memory.