CN116506865B

CN116506865B - SSB period resetting method and device, computer storage medium and electronic equipment

Info

Publication number: CN116506865B
Application number: CN202310774202.0A
Authority: CN
Inventors: 李鹏翔; 魏垚; 卢斌; 李南希; 董明洋
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-10-03
Anticipated expiration: 2043-06-28
Also published as: CN116506865A

Abstract

The disclosure relates to the technical field of communication, and provides an SSB period resetting method, an SSB period resetting device, a computer storage medium and electronic equipment, wherein the SSB period resetting method comprises the following steps: transmitting m SSB beams in a first preset period of the SSB period; receiving beam indication information fed back by a reconfigurable intelligent surface deployed in the signal coverage area of a base station; a second preset time period for transmitting the target SSB beam is newly added in the SSB period according to the beam indication information and the time domain configuration information of the first preset time period, so that the SSB period is reset to be a target SSB period comprising the first preset time period and the second preset time period; and transmitting the m SSB beams by using the first preset time period, and transmitting the target SSB beams by using the second preset time period. The method and the device can improve the speed of accessing the network by partial user terminals in the coverage area of the RIS reflection beam.

Description

SSB period resetting method and device, computer storage medium and electronic equipment

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a method for resetting an SSB period, a device for resetting an SSB period, a computer storage medium, and an electronic device.

Background

The reconfigurable intelligent surface (Reconfigurable Intelligent Surfaces, RIS) can encode electromagnetic units distributed on the surface of the intelligent surface to form reflected electromagnetic waves with controllable characteristics such as amplitude, phase and polarization mode, so that an intelligent controllable wireless propagation environment is constructed, and the intelligent surface is considered to be a 6G basic key technology with great potential.

After the RIS is deployed in the system, a UE (User Equipment) in a coverage blind area of a base station can access the network through the RIS, however, a part of UEs in a coverage area of a RIS reflected beam cannot access the network in time.

In view of the foregoing, there is a need in the art to develop a new SSB cycle reset method and apparatus.

It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present disclosure.

Disclosure of Invention

The disclosure aims to provide a method for resetting an SSB period, a device for resetting an SSB period, a computer storage medium and an electronic device, so as to overcome the technical problem that a part of user terminals in an RIS reflection beam coverage area cannot access a network in time due to the limitation of related technologies at least to a certain extent.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to a first aspect of the present disclosure, there is provided a reset method of SSB periods, including: transmitting m SSB beams in a first preset period of the SSB period; m is an integer greater than or equal to 1; receiving beam indication information fed back by a reconfigurable intelligent surface deployed in the signal coverage area of a base station, wherein the beam indication information comprises the identification of a target SSB beam received by the reconfigurable intelligent surface and the number of reflection beams configured by the reconfigurable intelligent surface; a second preset time period for transmitting the target SSB beam is newly added in the SSB period according to the beam indication information and the time domain configuration information of the first preset time period, so that the SSB period is reset to be a target SSB period comprising the first preset time period and the second preset time period; and transmitting the m SSB beams by using the first preset time period, and transmitting the target SSB beams by using the second preset time period.

In an exemplary embodiment of the present disclosure, the second preset period includes n sub-periods, each of which is equal to a duration of the first preset period; n is an integer greater than or equal to 1.

In an exemplary embodiment of the present disclosure, the time domain configuration information of the first preset period includes a number of candidate time domain positions within the first preset period; the step of adding a second preset time period for transmitting the target SSB beam in the SSB period according to the beam indication information and the time domain configuration information of the first preset time period, including: determining the number of candidate time domain positions in each sub-period according to the number of candidate time domain positions in the first preset period; determining the number n of the sub-time periods according to the number of the reflection beams configured by the reconfigurable intelligent surface and the number of the candidate time domain positions in each sub-time period; and newly adding the second preset time period in the SSB period according to the number of candidate time domain positions in each subperiod and the number n of subperiods.

In an exemplary embodiment of the disclosure, the determining the number n of sub-periods according to the number of reflected beams configured by the reconfigurable intelligent surface and the number of candidate time domain positions within each of the sub-periods includes: acquiring a first difference value between the number of the reflection beams configured on the reconfigurable intelligent surface and a preset value; obtaining a ratio between the first difference and the number of candidate time domain positions within each of the sub-periods; and (3) rounding the ratio upwards to obtain the number n of the subintervals.

In an exemplary embodiment of the present disclosure, the transmitting the target SSB beam using the second preset period includes: selecting a target time domain position from candidate time domain positions contained in the n subintervals; activating the target time domain position and transmitting the target SSB beam based on the target time domain position.

In an exemplary embodiment of the present disclosure, the n sub-periods include a first n-1 sub-period and an nth sub-period; the selecting a target time domain position from candidate time domain positions contained in the n subintervals includes: determining candidate time domain positions of each sub-period in the first n-1 sub-periods as first target time domain positions; selecting a second target time domain position from the nth subperiod according to the number of reflection beams configured by the reconfigurable intelligent surface, the number of candidate time domain positions in each subperiod and the number n of subperiods; determining the first target time domain position and the second target time domain position as the target time domain positions.

In an exemplary embodiment of the disclosure, the selecting the second target time domain position from the nth sub-period according to the number of reflected beams configured by the reconfigurable intelligent surface, the number of candidate time domain positions within each of the sub-periods, and the number of sub-periods n includes: acquiring a second difference value between the number n of the sub-periods and a preset value; determining a product between the second difference and the number of candidate time domain locations within each of the sub-periods; obtaining a third difference between the number of reflected beams of the reconfigurable intelligent surface configuration and the product; determining a fourth difference u between the third difference and the preset value; the first u candidate time domain positions in the nth sub-period are determined as the second target time domain positions.

According to a second aspect of the present disclosure, there is provided a reset device of SSB period, comprising: a first transmitting module, configured to transmit m SSB beams in a first preset period of the SSB period; m is an integer greater than or equal to 1; the receiving module is used for receiving beam indication information fed back by the reconfigurable intelligent surface deployed in the signal coverage area of the base station, wherein the beam indication information comprises the identification of target SSB beams received by the reconfigurable intelligent surface and the number of reflection beams configured by the reconfigurable intelligent surface; a resetting module, configured to newly add a second preset period for transmitting the target SSB beam in the SSB period according to the beam indication information and the time domain configuration information of the first preset period, so as to reset the SSB period to a target SSB period including the first preset period and the second preset period; and the second transmitting module is used for transmitting the m SSB beams by using the first preset time period and transmitting the target SSB beam by using the second preset time period.

According to a third aspect of the present disclosure, there is provided a computer storage medium having stored thereon a computer program which, when executed by a processor, implements the SSB period resetting method of the first aspect described above.

According to a fourth aspect of the present disclosure, there is provided an electronic device comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the method of resetting SSB cycles described in the first aspect above via execution of the executable instructions.

As can be seen from the above technical solutions, the SSB period resetting method, the SSB period resetting device, the computer storage medium, and the electronic device in the exemplary embodiments of the present disclosure have at least the following advantages and positive effects:

in the technical schemes provided by some embodiments of the present disclosure, by dividing the SSB period into two parts of a first preset period and a second preset period, transmitting m SSB beams by using the first preset period, and transmitting a target SSB beam which can be received by the RIS by using the second preset period, the situation that the UE in the coverage area of the RIS reflection beam has too long waiting time for accessing the network can be avoided, and user experience is ensured.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

FIG. 1 shows a schematic diagram of deploying a RIS in a communication system.

Fig. 2 is a schematic diagram illustrating the length of time a UE in different reflected beam coverage areas needs to wait when accessing a network in an embodiment of the present disclosure.

Fig. 3 is a flow chart illustrating a method of resetting SSB periods in an embodiment of the present disclosure.

Fig. 4 is a flowchart illustrating how to newly add a second preset period for transmitting a target SSB beam in an SSB period according to beam indication information and time domain configuration information of the first preset period in an embodiment of the present disclosure.

Fig. 5 shows a flow diagram of how the number of sub-periods n is determined from the number of reflected beams of the reconfigurable smart surface configuration and the number of candidate time-domain locations within each sub-period in an embodiment of the present disclosure.

Fig. 6 is a flow chart illustrating how a target time-domain position is selected from among candidate time-domain positions contained in n sub-periods in an embodiment of the present disclosure.

Fig. 7 is a flow chart illustrating how a second target time domain position is selected from an nth sub-period according to the number of reflected beams of the reconfigurable intelligent surface configuration, the number of candidate time domain positions within each sub-period, and the number n of sub-periods in an embodiment of the disclosure.

Fig. 8 shows a schematic configuration diagram of a target SSB period in an embodiment of the present disclosure.

Fig. 9 illustrates a schematic structure of a reset device of an SSB period in an exemplary embodiment of the present disclosure.

Fig. 10 illustrates a schematic structure of an electronic device in an exemplary embodiment of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present disclosure. One skilled in the relevant art will recognize, however, that the aspects of the disclosure may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure.

The terms "a," "an," "the," and "said" are used in this specification to denote the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first" and "second" and the like are used merely as labels, and are not intended to limit the number of their objects.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.

A Base Station (BS) is a device for connecting a fixed part and a radio part in a mobile communication system and connecting the mobile Station through radio transmission over the air. The base station comprises microcells and macrocells. The base station is a basic unit constituting a cell in mobile communication, and performs communication and management functions between a mobile communication network and mobile communication subscribers.

SSB refers to a synchronization signal and PBCH block (Synchronization Signal and PBCH block, abbreviated SSB), and is composed of a primary synchronization signal (Primary Synchronization Signal, abbreviated PSS), a secondary synchronization signal (Secondary Synchronization Signals, abbreviated SSS), and a PBCH.

After the RIS is deployed in the system, the user terminals in the coverage blind area of the base station (the blind area refers to the phenomenon that when the mobile user spans different coverage areas, the mobile user fails in unconditional access and service lifting due to limited coverage area of the base station) can access the network through the RIS, however, some user terminals in the coverage area of the RIS reflection beam have the problem that the user terminals cannot access the network in time (specific reasons for the problem are analyzed below in conjunction with fig. 1 and 2).

Referring to fig. 1, fig. 1 shows a schematic diagram of a deployment of RIS in a communication system, as shown in fig. 1:

the base station configures 3 SSB beams (i.e. SSB1, SSB2 and SSB 3), the RIS configures 3 reflected beams (RIS-beam 1, RIS-beam2 and RIS-beam 3), the RIS-beam1, the RIS-beam2 and the RIS-beam3 are respectively used for covering user terminals in different areas, assuming that the SSB transmission period is 20ms, and only SSB2 can hit the RIS and be received by the RIS, then UEs in the coverage area of the RIS-beam2 need to wait for 1 SSB transmission period before accessing the network, and UEs in the coverage area of the RIS-beam3 need to wait for more than 2 SSB transmission periods before completing the access, and the waiting time exceeds 40 ms.

Referring to fig. 2, fig. 2 is a schematic diagram illustrating a duration of waiting time required for a UE in a coverage area of a different reflected beam to access a network in an embodiment of the disclosure, as shown in fig. 2:

during the first SSB transmission period (20 ms), the base station sequentially transmits SSB1, SSB2 and SSB3, the RIS can receive the SSB2, and at this time, the UE in the coverage area of the RIS-beam 1 can access the network; during the second SSB transmission period (20 ms), the base station sequentially transmits SSB1, SSB2 and SSB3, the RIS can receive the SSB2, and at this time, the UE in the coverage area of the RIS-beam 2 can access the network; in the third transmission period (20 ms), the base station sequentially transmits SSB1, SSB2 and SSB3, the RIS can receive the SSB2, and the UE in the coverage area of the RIS-beam 3 can access the network.

It follows that a UE in the RIS-beam 3 coverage area needs to wait more than 2 SSB transmission cycles to complete access, with a latency of more than 40 milliseconds.

In the embodiments of the present disclosure, a method for resetting SSB periods is provided first, which overcomes, at least to some extent, the defect that a part of user terminals in the coverage area of an RIS reflection beam cannot access a network in time in the related art.

Fig. 3 is a flow chart illustrating a method of resetting an SSB period in an embodiment of the present disclosure, and an execution subject of the method of resetting an SSB period may be a base station transmitting an SSB beam.

Referring to fig. 3, a reset method of SSB periods according to one embodiment of the present disclosure includes the steps of:

step S310, m SSB beams are transmitted in a first preset period of an SSB period; m is an integer greater than or equal to 1;

step S320, receiving beam indication information fed back by the reconfigurable intelligent surface deployed in the coverage area of the base station signal, wherein the beam indication information comprises the identification of target SSB beams received by the reconfigurable intelligent surface and the number of reflection beams configured by the reconfigurable intelligent surface;

step S330, according to the beam indication information and the time domain configuration information of the first preset period, a second preset period for transmitting the target SSB beam is newly added in the SSB period to reset the SSB period to a target SSB period comprising the first preset period and the second preset period;

step S340, transmitting m SSB beams with the first preset period and transmitting the target SSB beam with the second preset period.

In the technical scheme provided by the embodiment shown in fig. 3, the SSB period is divided into two parts of a first preset period and a second preset period, m SSB beams are transmitted by using the first preset period, a target SSB beam which can be received by the RIS is transmitted by using the second preset period, the situation that the waiting time of the UE in the coverage area of the RIS reflection beam is too long can be avoided, and the user experience is ensured.

The specific implementation of each step in fig. 3 is described in detail below:

the method and the device can deploy the reconfigurable intelligent surface RIS in the signal coverage range of the base station in advance, and enable the UE of the coverage blind area of the base station to access the network through the reconfigurable intelligent surface RIS.

In step S310, m SSB beams are transmitted in a first preset period of the SSB period; m is an integer greater than or equal to 1.

In this step, the SSB period refers to a transmission period of the SSB burst set, and the period may vary from 5 ms to 160 ms, and in the following embodiment, the SSB period is exemplified by 20 ms.

According to the 3GPP (3 rd Generation Partnership Project, third generation partnership project) specification, it is required that all SSB beams have to be transmitted within 5 ms, and thus the duration of the first preset period (which may be named as original SSB) is 5 ms, so that, assuming that the base station configures 3 SSB beams, SSB1, SSB2 and SSB3 respectively, the base station may transmit the SSB1, SSB2 and SSB3 within 5 ms while performing beam scanning, and wait for 15 ms before entering the next SSB period.

It should be noted that the first preset period may correspond to time domain configuration information, that is, the number of candidate time domain positions (i.e., SSB patterns) included in the first preset period. Illustratively, according to the rule of the 3GPP protocol, the number r of candidate time domain positions in the first preset period may correspond to five cases (i.e., case a, caseB, caseC, caseD and Case e), and the number of candidate time domain positions corresponding to each Case is different (the number of candidate time domain positions may be 0-4), which is exemplified by taking the candidate time domain position r in the first preset period as 4 in the following embodiments.

In step S320, beam indication information fed back by the reconfigurable intelligent surface disposed in the coverage area of the base station signal is received.

In this step, after the base station transmits the m SSB beams, part of the m SSB beams may be received by a reconfigurable intelligent surface that is pre-deployed in the signal coverage area of the base station, so that the reconfigurable intelligent surface may feed back relevant beam indication information to the base station.

Wherein, the beam indication information includes: the identity of the target SSB beam (i.e., SSB ID) received by the reconfigurable smart surface, and the number of reflected beams configured by the reconfigurable smart surface. For example, the identification of the target SSB beam received by the reconfigurable intelligent surface may be 2, and the number k of reflected beams configured by the reconfigurable intelligent surface may be 3, which may be set by themselves according to the actual situation, which is not particularly limited in the present disclosure.

In step S330, a second preset period for transmitting the target SSB beam is newly added in the SSB period according to the beam indication information and the time domain configuration information of the first preset period, so as to reset the SSB period to the target SSB period including the first preset period and the second preset period.

In this step, after receiving the beam indication information, a second preset period for transmitting the target SSB beam may be newly added in the SSB period according to the beam indication information and the time domain configuration information of the first preset period.

The second preset period may include n sub-periods (may be named as SSB periods), where each sub-period is equal to the first preset period in duration and is 5 milliseconds.

Referring to fig. 4, fig. 4 is a schematic flow chart illustrating how to newly add a second preset period for transmitting a target SSB beam in an SSB period according to beam indication information and time domain configuration information of the first preset period in an embodiment of the present disclosure, including steps S401 to S403:

in step S401, the number of candidate time domain positions in each sub-period is determined according to the number of candidate time domain positions in the first preset period.

In this step, as can be seen from the explanation of the above steps, the number r of candidate time domain positions in the first preset period is 4, and thus, the number r of candidate time domain positions in each sub-period in the second preset period is also 4.

In step S402, the number of sub-periods n is determined according to the number of reflected beams of the reconfigurable intelligent surface configuration and the number of candidate time domain positions within each sub-period.

In this step, referring to fig. 5, fig. 5 shows a flowchart of how to determine the number n of sub-periods according to the number of reflection beams configured by the reconfigurable intelligent surface and the number of candidate time-domain positions in each sub-period in the embodiment of the disclosure, including step S501-step S503:

in step S501, a first difference between the number of reflected beams of the reconfigurable intelligent surface configuration and a preset value is obtained.

In this step, the preset value may be 1, so that a first difference between the number k of reflection beams configured by the reconfigurable intelligent surface and the preset value is: k-1, and referring to the relevant explanation of the above steps, the number k of reflected beams of the reconfigurable smart surface configuration is 3, so that k-1=2.

In step S502, a ratio between the first difference value and the number of candidate time domain positions within each sub-period is obtained.

In this step, referring to the explanation of the above steps, it is known that the number r of candidate time domain positions in each sub-period is 4, and in view of the number r of candidate time domain positions in each sub-period being 4, the ratio between the first difference value and the number of candidate time domain positions in each sub-period is:。

in step S503, the comparison value is rounded up to obtain the number n of sub-periods.

In this step, the ratio may be rounded up to obtain the number n of each sub-period by rounding up 0.5 (i.e., n is greater than or equal toThe minimum natural number of (a) can be obtained, the number of sub-periods n=1.

Referring next to fig. 4, in step S403, a second preset period is newly added in the SSB period according to the number of candidate time domain positions in each sub-period and the number n of sub-periods.

In this step, in view of the number of candidate time domain positions in each sub-period being 4, the number of sub-periods is 1, so that a second preset period including 1 sub-period (the duration of the sub-period is the same as that of the first preset period, both being 5 ms) can be newly added in the SSB period, and the number of candidate time domain positions of the 1 sub-period is 4.

Based on the above steps, the present disclosure may reset the SSB period including only the first preset period as the target SSB period including both the first preset period and the second preset period.

After resetting the SSB period as the target SSB period, referring next to fig. 3, m SSB beams are transmitted using a first preset period and the target SSB beam is transmitted using a second preset period in step S340.

In this step, when the next SSB period arrives, the m SSB beams may be transmitted using a first preset period of the target SSB period, and the target SSB beam may be transmitted using a second preset period of the target SSB period.

Specifically, a target time domain position may be selected from candidate time domain positions included in n sub-periods included in the second preset period, and then the target time domain position is activated according to the existing 3GPP protocol, and the target SSB beam is transmitted based on the target time domain position.

Specifically, referring to fig. 6, fig. 6 is a flowchart illustrating how to select a target time domain position from among candidate time domain positions included in n sub-periods in the embodiment of the present disclosure, including step S601 to step S603:

in step S601, candidate time domain positions for each of the first n-1 sub-periods are determined as first target time domain positions.

In this step, the candidate time-domain position of each of the above-described first n-1 sub-periods (SSB repeat) may be determined as the first target time-domain position. As can be seen from the above explanation of step S503, n=1, and thus, n-1=0, i.e. there is no first target time domain position.

In step S602, a second target time domain position is selected from the nth sub-period according to the number of reflected beams configured by the reconfigurable intelligent surface, the number of candidate time domain positions within each sub-period, and the number n of sub-periods.

In this step, referring to fig. 7, fig. 7 is a schematic flow chart showing how to select a second target time domain position from an nth sub-period according to the number of reflection beams configured by the reconfigurable intelligent surface, the number of candidate time domain positions in each sub-period, and the number n of sub-periods in the embodiment of the disclosure, including steps S701 to S705:

in step S701, a second difference between the number n of sub-periods and a preset value is obtained.

In this step, a second difference between the number n of sub-periods included in the second preset period and the preset value may be obtained, where the preset value is 1, so that the second difference is n-1. As can be seen from the above explanation of step S503, n is 1, and thus, n-1=0.

In step S702, a product between the second difference and the number of candidate time domain positions within each sub-period is determined.

In this step, the product between the second difference and the candidate time domain position within each sub-period, i.e., (n-1) ×r, may be obtained. As can be seen from the above explanation of step S701, n-1 is 0, and thus, (n-1) ×r is also 0.

In step S703, a third difference between the number of reflected beams of the reconfigurable intelligent surface configuration and the product is acquired.

In this step, a third difference between the number k of reflected beams of the reconfigurable smart surface configuration and the above product, i.e., k- (n-1) xr, may be obtained. In view of k being 3 and (n-1) ×r being 0, k- (n-1) ×r=3.

In step S704, a fourth difference u between the third difference and the preset value is determined.

In this step, the preset value is 1, and thus, a fourth difference u=k- (n-1) ×r-1=3-1=2 between the above third difference and the preset threshold.

In step S705, the first u candidate time domain positions in the nth sub-period are determined as the second target time domain positions.

In this step, the first u candidate time domain positions in the nth sub-period may be determined as the second target time domain positions. Thus, the first 2 candidate time domain positions in the 1 st sub-period may be determined as the second target time domain position.

Referring next to fig. 6, in step S603, the first target time-domain position and the second target time-domain position are determined as target time-domain positions.

In this step, referring to the explanation related to the above step S601, it is known that, when n=1, k=3, and r=4, the first 2 candidate time domain positions of the first sub-period in the second preset period are activated and determined as the target time domain positions, the target SSB beam (i.e. SSB 2) can be transmitted by using the target time domain positions, and the target SSB beam is a beam receivable by the RIS, so that the RIS can reflect the target SSB beam, so that the UE not in the coverage area of the base station signal can access the network quickly.

Referring to fig. 8, fig. 8 shows a schematic configuration diagram of a target SSB period in the embodiment of the present disclosure, specifically shows a schematic configuration of a corresponding target SSB period when the RIS feedback to the BS has an SSB ID of 2, the number k of reflection beams configured by the RIS is 3 (RIS-beam 1, RIS-beam2, RIS-beam 3), the first preset duration is 5 ms, and the candidate time domain position r is 4, as shown in fig. 8:

since the base station configures only 3 SSB beams (SSB 1, SSB2, SSB 3), the 3 SSB beams (i.e., SSB1, SSB2, and SSB 3) can be transmitted using the 4 candidate time domain locations of the first preset period (original SSB, 5 ms), only SSB2 of the 3 SSB beams can be transmitted to the RIS, and the RIS configures 3 reflected beams (RIS-beam 1, RIS-beam2, and RIS-beam 3) at this time, UEs covered by the RIS-beam1 can access the network. In the second preset period (i.e., the RIS-Related SSB shown in fig. 8), in view of n=1, the second preset period includes only one sub-period (i.e., SSB repeat1 shown in fig. 8, with a duration of 5 ms), and the determined target time domain position is the first 2 candidate time domain positions of the 1 st sub-period, so that the first 2 candidate time domain positions of the sub-period 1 can be used to send two target SSBs, i.e., SSB2, and at this time, UEs covered by the RIS-beam2 and the RIS-beam3 can access the network.

Obviously, based on the technical scheme in the disclosure, the UE in the coverage area of the RIS-beam 3 can access the network only by waiting about 5 ms, and can access the network only by waiting more than 40 ms as in the technical scheme shown in fig. 2.

Thus, based on the above technical scheme, the present disclosure has at least the following technical effects:

the SSB period is divided into an Original SSB and an RIS-Related SSB, and the duration, the candidate time domain position, the SSB activation and other configurations are respectively carried out, so that the situation that the waiting time of the UE in the coverage area of the RIS reflected beam is too long when the UE accesses the network can be avoided, and the user experience is ensured.

Therefore, the method and the device are at least suitable for the scene that the UE accesses the network through the RIS reflection beam after the RIS is deployed, so that the problem that the UE in the coverage area of the RIS reflection beam cannot access the network in time is solved, user experience is guaranteed, and the RIS application is effectively promoted to fall to the ground.

The present disclosure also provides a reset device of SSB period, and fig. 9 shows a schematic structural diagram of the reset device of SSB period in an exemplary embodiment of the present disclosure; as shown in fig. 9, the SSB period resetting apparatus 900 may include a first transmitting module 910, a receiving module 920, a resetting module 930, and a second transmitting module 940. Wherein:

A first transmitting module 910, configured to transmit m SSB beams during a first preset period of the SSB period; m is an integer greater than or equal to 1;

a receiving module 920, configured to receive beam indication information fed back by a reconfigurable intelligent surface disposed within a coverage area of a base station signal, where the beam indication information includes an identifier of a target SSB beam received by the reconfigurable intelligent surface and a number of reflected beams configured by the reconfigurable intelligent surface;

a resetting module 930, configured to newly add a second preset period for transmitting the target SSB beam in the SSB period according to the beam indication information and the time domain configuration information of the first preset period, so as to reset the SSB period to a target SSB period including the first preset period and the second preset period;

a second transmitting module 940, configured to transmit the m SSB beams using the first preset period and transmit the target SSB beam using the second preset period.

In an exemplary embodiment of the present disclosure, the time domain configuration information of the first preset period includes a number of candidate time domain positions within the first preset period; the resetting module 930 adds a second preset period for transmitting the target SSB beam in the SSB period according to the beam indication information and the time domain configuration information of the first preset period, including: determining the number of candidate time domain positions in each sub-period according to the number of candidate time domain positions in the first preset period; determining the number n of the sub-time periods according to the number of the reflection beams configured by the reconfigurable intelligent surface and the number of the candidate time domain positions in each sub-time period; and newly adding the second preset time period in the SSB period according to the number of candidate time domain positions in each subperiod and the number n of subperiods.

In an exemplary embodiment of the disclosure, the resetting module 930 determines the number n of sub-periods according to the number of reflected beams configured by the reconfigurable intelligent surface and the number of candidate time domain positions within each of the sub-periods, including: acquiring a first difference value between the number of the reflection beams configured on the reconfigurable intelligent surface and a preset value; obtaining a ratio between the first difference and the number of candidate time domain positions within each of the sub-periods; and (3) rounding the ratio upwards to obtain the number n of the subintervals.

In an exemplary embodiment of the present disclosure, the second transmitting module 940 transmits the target SSB beam using the second preset period, including: selecting a target time domain position from candidate time domain positions contained in the n subintervals; activating the target time domain position and transmitting the target SSB beam based on the target time domain position.

In an exemplary embodiment of the present disclosure, the n sub-periods include a first n-1 sub-period and an nth sub-period; the second transmitting module 940 selects a target time domain position from among candidate time domain positions included in the n sub-periods, including: determining candidate time domain positions of each sub-period in the first n-1 sub-periods as first target time domain positions; selecting a second target time domain position from the nth subperiod according to the number of reflection beams configured by the reconfigurable intelligent surface, the number of candidate time domain positions in each subperiod and the number n of subperiods; determining the first target time domain position and the second target time domain position as the target time domain positions.

In an exemplary embodiment of the present disclosure, the second transmitting module 940 selects a second target time domain position from the nth sub-period according to the number of reflected beams configured by the reconfigurable intelligent surface, the number of candidate time domain positions in each of the sub-periods, and the number of sub-periods n, including: acquiring a second difference value between the number n of the sub-periods and a preset value; determining a product between the second difference and the number of candidate time domain locations within each of the sub-periods; obtaining a third difference between the number of reflected beams of the reconfigurable intelligent surface configuration and the product; determining a fourth difference u between the third difference and the preset value; the first u candidate time domain positions in the nth sub-period are determined as the second target time domain positions.

The specific details of each module in the above-mentioned SSB period resetting device are described in detail in the corresponding SSB period resetting method, so that the details are not repeated here.

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order or that all illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

The present application also provides a computer-readable storage medium that may be included in the electronic device described in the above embodiments; or may exist alone without being incorporated into the electronic device.

The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this disclosure, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable storage medium may transmit, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.

The computer-readable storage medium carries one or more programs which, when executed by one such electronic device, cause the electronic device to implement the methods described in the embodiments above.

In addition, an electronic device capable of realizing the method is provided in the embodiment of the disclosure.

Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 1000 according to such an embodiment of the present disclosure is described below with reference to fig. 10. The electronic device 1000 shown in fig. 10 is merely an example and should not be construed as limiting the functionality and scope of use of the disclosed embodiments.

As shown in fig. 10, the electronic device 1000 is embodied in the form of a general purpose computing device. Components of electronic device 1000 may include, but are not limited to: the at least one processing unit 1010, the at least one memory unit 1020, a bus 1030 connecting the various system components (including the memory unit 1020 and the processing unit 1010), and a display unit 1040.

Wherein the storage unit stores program code that is executable by the processing unit 1010 such that the processing unit 1010 performs steps according to various exemplary embodiments of the present disclosure described in the above section of the present specification. For example, the processing unit 1010 may perform the operations as shown in fig. 3: step S310, m SSB beams are transmitted in a first preset period of an SSB period; m is an integer greater than or equal to 1; step S320, receiving beam indication information fed back by a reconfigurable intelligent surface deployed in the coverage area of a base station signal, wherein the beam indication information comprises the identification of a target SSB beam received by the reconfigurable intelligent surface and the number of reflection beams configured by the reconfigurable intelligent surface; step S330, according to the beam indication information and the time domain configuration information of the first preset period, a second preset period for transmitting the target SSB beam is newly added in the SSB period, so as to reset the SSB period to a target SSB period including the first preset period and the second preset period; step S340, transmitting the m SSB beams with the first preset period, and transmitting the target SSB beam with the second preset period.

The memory unit 1020 may include readable media in the form of volatile memory units such as Random Access Memory (RAM) 10201 and/or cache memory unit 10202, and may further include Read Only Memory (ROM) 10203.

The storage unit 1020 may also include a program/utility 10204 having a set (at least one) of program modules 10205, such program modules 10205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

Bus 1030 may be representing one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 1000 can also communicate with one or more external devices 1100 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 1000, and/or with any device (e.g., router, modem, etc.) that enables the electronic device 1000 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 1050. Also, electronic device 1000 can communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 1060. As shown, the network adapter 1060 communicates with other modules of the electronic device 1000 over the bus 1030. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with the electronic device 1000, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A method for resetting an SSB period, comprising:

transmitting m SSB beams in a first preset period of the SSB period; m is an integer greater than or equal to 1;

receiving beam indication information fed back by a reconfigurable intelligent surface deployed in the signal coverage area of a base station, wherein the beam indication information comprises the identification of a target SSB beam received by the reconfigurable intelligent surface and the number of reflection beams configured by the reconfigurable intelligent surface;

a second preset time period for transmitting the target SSB beam is newly added in the SSB period according to the beam indication information and the time domain configuration information of the first preset time period, so that the SSB period is reset to be a target SSB period comprising the first preset time period and the second preset time period; the second preset time period comprises n sub-time periods, and the duration of each sub-time period is equal to that of the first preset time period; n is an integer greater than or equal to 1; the time domain configuration information of the first preset time period comprises the number of candidate time domain positions in the first preset time period; the step of adding a second preset time period for transmitting the target SSB beam in the SSB period according to the beam indication information and the time domain configuration information of the first preset time period, including: determining the number of candidate time domain positions in each sub-period according to the number of candidate time domain positions in the first preset period; determining the number n of the sub-time periods according to the number of the reflection beams configured by the reconfigurable intelligent surface and the number of the candidate time domain positions in each sub-time period; according to the number of candidate time domain positions in each subinterval and the number n of subintervals, the second preset interval is newly added in the SSB period;

And transmitting the m SSB beams by using the first preset time period, and transmitting the target SSB beams by using the second preset time period.

2. The method of claim 1, wherein said determining the number n of sub-periods from the number of reflected beams of the reconfigurable intelligent surface configuration and the number of candidate time domain locations within each of the sub-periods comprises:

acquiring a first difference value between the number of the reflection beams configured on the reconfigurable intelligent surface and a preset value;

obtaining a ratio between the first difference and the number of candidate time domain positions within each of the sub-periods;

and (3) rounding the ratio upwards to obtain the number n of the subintervals.

3. The method of claim 1, wherein the transmitting the target SSB beam with the second preset period of time comprises:

selecting a target time domain position from candidate time domain positions contained in the n subintervals;

activating the target time domain position and transmitting the target SSB beam based on the target time domain position.

4. A method according to claim 3, wherein the n sub-periods comprise a first n-1 sub-period and an nth sub-period;

The selecting a target time domain position from candidate time domain positions contained in the n subintervals includes:

determining candidate time domain positions of each sub-period in the first n-1 sub-periods as first target time domain positions;

selecting a second target time domain position from the nth subperiod according to the number of reflection beams configured by the reconfigurable intelligent surface, the number of candidate time domain positions in each subperiod and the number n of subperiods;

determining the first target time domain position and the second target time domain position as the target time domain positions.

5. The method of claim 4, wherein selecting a second target time domain position from the nth sub-period according to the number of reflected beams of the reconfigurable intelligent surface configuration, the number of candidate time domain positions within each of the sub-periods, and the number of sub-periods n, comprises:

acquiring a second difference value between the number n of the sub-periods and a preset value;

determining a product between the second difference and the number of candidate time domain locations within each of the sub-periods;

obtaining a third difference between the number of reflected beams of the reconfigurable intelligent surface configuration and the product;

Determining a fourth difference u between the third difference and the preset value;

the first u candidate time domain positions in the nth sub-period are determined as the second target time domain positions.

6. A SSB period resetting device, comprising:

a first transmitting module, configured to transmit m SSB beams in a first preset period of the SSB period; m is an integer greater than or equal to 1;

the receiving module is used for receiving beam indication information fed back by the reconfigurable intelligent surface deployed in the signal coverage area of the base station, wherein the beam indication information comprises the identification of target SSB beams received by the reconfigurable intelligent surface and the number of reflection beams configured by the reconfigurable intelligent surface;

a resetting module, configured to newly add a second preset period for transmitting the target SSB beam in the SSB period according to the beam indication information and the time domain configuration information of the first preset period, so as to reset the SSB period to a target SSB period including the first preset period and the second preset period; the second preset time period comprises n sub-time periods, and the duration of each sub-time period is equal to that of the first preset time period; n is an integer greater than or equal to 1; the time domain configuration information of the first preset time period comprises the number of candidate time domain positions in the first preset time period; the resetting module is used for determining the number of candidate time domain positions in each sub-period according to the number of candidate time domain positions in the first preset period; determining the number n of the sub-time periods according to the number of the reflection beams configured by the reconfigurable intelligent surface and the number of the candidate time domain positions in each sub-time period; according to the number of candidate time domain positions in each subinterval and the number n of subintervals, the second preset interval is newly added in the SSB period;

And the second transmitting module is used for transmitting the m SSB beams by using the first preset time period and transmitting the target SSB beam by using the second preset time period.

7. A computer storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the SSB period resetting method of any one of claims 1 to 5.

8. An electronic device, comprising:

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to perform the reset method of the SSB cycles of any one of claims 1 to 5 via execution of the executable instructions.