CN111314930A - Beam selection method, device, terminal and storage medium - Google Patents
Beam selection method, device, terminal and storage medium Download PDFInfo
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- CN111314930A CN111314930A CN202010122938.6A CN202010122938A CN111314930A CN 111314930 A CN111314930 A CN 111314930A CN 202010122938 A CN202010122938 A CN 202010122938A CN 111314930 A CN111314930 A CN 111314930A
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- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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Abstract
The embodiment of the invention discloses a beam selection method, a beam selection device, a terminal and a storage medium. The method comprises the following steps: acquiring a first signal intensity of a current wave beam and a second signal intensity of an adjacent cell; judging whether the second signal strength in the first preset time is continuously greater than the sum of the first signal strength and a configuration threshold value; if not, acquiring a third signal intensity of the same-region wave beam in the cell to which the current wave beam belongs; judging whether the third signal intensity in a second preset time length is continuously greater than the sum of the first signal intensity and a preset hysteresis value, wherein the second preset time length and the preset hysteresis value are determined by the first signal intensity and a preset threshold value; if yes, determining the same-zone beam corresponding to the third signal intensity as a target beam, and switching the current beam to the target beam. The method solves the problems of unstable signal intensity, frequent beam switching, serious beam attenuation, untimely beam switching and the like when the idle 5G terminal selects the beam in the prior art.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a method, an apparatus, a terminal, and a storage medium for beam selection.
Background
Beamforming, also called Beamforming, spatial filtering, is a signal processing technique that uses a sensor array to directionally transmit and receive signals. Beamforming techniques allow signals at certain angles to achieve constructive interference and signals at other angles to achieve destructive interference by adjusting parameters of the basic elements of the phased array. Beamforming can be used for both signal transmitting and receiving ends. In 5G networks, massive beamforming becomes a mainstream technology, and particularly, massive beamforming is just needed when terminals and networks adopt millimeter frequency bands for communication. When the terminal is in a 5G network connection state, the selection of the beam is decided by the network, but when the terminal is in an IDLE state, the 3GPP specification does not define how the terminal in an IDLE state (IDLE state) evaluates and selects the best beam dwell in the cell, and the evaluation and selection of the beam in the cell are completely implemented by the terminal itself. The conventional implementation method at present is that a physical layer of a terminal measures which beam signal is strongest, and the beam with the strongest tangential signal or the selected beam during cell reselection is occupied all the time after cell selection or cell reselection is performed, and is not switched until the beam of another neighboring cell is reselected after the neighboring cell reselection condition is met. The method aims to solve the problems that when the 5G terminal in an idle state selects the beam, the intensity of the beam signal is unstable when the single beam is occupied and the beam is not switched, and the problem that the beam is frequently switched when the strongest beam signal is measured and the beam with the strongest tangential signal is measured.
Disclosure of Invention
In view of this, the present invention provides a beam selection method, which realizes selecting a beam with stable signal strength when a terminal is in an idle state.
In order to solve the technical problems, the invention adopts the following technical scheme:
in one embodiment, the present invention provides a beam selection method, including:
acquiring a first signal intensity of a current wave beam and a second signal intensity of an adjacent cell;
judging whether the second signal strength is continuously greater than the sum of the first signal strength and a configuration threshold value within a first preset time length;
if not, acquiring a third signal intensity of the same-region beam in the cell to which the current beam belongs;
judging whether the third signal intensity is continuously greater than the sum of the first signal intensity and a preset hysteresis value within a second preset time length, wherein the second preset time length and the preset hysteresis value are determined by the first signal intensity and a preset threshold value;
if so, determining the same-zone beam corresponding to the third signal intensity as a target beam, and switching the current beam to the target beam.
In one embodiment, the present invention provides a beam selection apparatus, including:
the first signal intensity acquisition module is used for acquiring a first signal intensity of a current wave beam and a second signal intensity of a neighboring wave beam;
the reselection judgment module is used for judging whether the second signal strength is continuously greater than the sum of the first signal strength and a configuration threshold value within a first preset time period;
a second signal strength obtaining module, configured to obtain a third signal strength of a beam in the same cell in the cell to which the current beam belongs if the second signal strength is not greater than the sum of the first signal strength and a configuration threshold continuously within a first preset time period;
an intra-area reselection judging module, configured to judge whether the third signal strength is continuously greater than a sum of the first signal strength and a preset hysteresis value within a second preset time period, where the second preset time period and the preset hysteresis value are determined by the first signal strength and a preset threshold;
and the beam switching module is configured to determine a co-region beam corresponding to the third signal intensity as a target beam and switch the current beam to the target beam if the third signal intensity is continuously greater than the sum of the first signal intensity and a preset hysteresis value within a second preset duration.
In one embodiment, the present invention provides a communication terminal, including:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, enable the one or more processors to implement a beam selection method as previously described.
In one embodiment, the present invention provides a computer readable storage medium having a computer program stored thereon, the computer program comprising program instructions which, when executed, implement the beam selection method as previously described.
The beam selection method provided by the invention can timely switch the beam, can constantly keep the beam with stable intensity, and solves the problems of unstable signal intensity, frequent beam switching, serious beam attenuation, untimely beam switching and the like when the 5G terminal in an idle state selects the beam in the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only part of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a beam selection method according to an embodiment of the present invention;
fig. 2 is a flowchart of a beam selection method according to an embodiment of the present invention;
fig. 3 is a flowchart of a beam selection method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a beam selection apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an intra-area reselection determination module according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal according to a fourth embodiment of the present invention.
Detailed Description
The technical solution in the implementation of the present application is described clearly and completely below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of some, and not restrictive, of the current application. It should be further noted that, based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without any creative effort belong to the protection scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Furthermore, the terms "first," "second," and the like may be used herein to describe various orientations, actions, steps, elements, or the like, but the orientations, actions, steps, or elements are not limited by these terms. These terms are only used to distinguish one direction, action, step or element from another direction, action, step or element. For example, a first region could be termed a second region, and, similarly, a second region could be termed a first region, without departing from the scope of the present invention. The first region and the second region are both regions, but they are not the same region. The terms "first", "second", etc. are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. It should be noted that when one portion is referred to as being "secured to" another portion, it may be directly on the other portion or there may be an intervening portion. When a portion is said to be "connected" to another portion, it may be directly connected to the other portion or intervening portions may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the steps as a sequential process, many of the steps can be performed in parallel, concurrently or simultaneously. In addition, the order of the steps may be rearranged. A process may be terminated when its operations are completed, but may have additional steps not included in the figure. A process may correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.
Referring to fig. 1, in one embodiment, a beam selection method is provided that may be applicable to various terminals capable of beamforming. Specifically, the method comprises the following steps:
s110, obtaining a first signal intensity of the current wave beam and a second signal intensity of the adjacent area.
The handover procedure of 5G uses LTE (Long Term Evolution ) as a direct scheme, a beam forming technology adopted in 5G introduces multiple beams, that is, each terminal needs to use a specific beam in a cell to implement communication, and the terminal needs to monitor the signal quality of a serving cell and a neighboring cell at any time to select a most suitable cell to camp on, so that it needs to measure nearby beams during cell handover.
Specifically, before performing beam handover between cells, a bottom layer (physical layer) of the terminal may detect beam signal strengths around the terminal, and the signal strength needs to be smaller than that of the smaller cell during handover, so that the first signal strength of the first beam currently camped on the terminal and the second signal strength of the neighboring cell are obtained in step S110, where the first signal strength represents the signal strength of the cell currently camped on the terminal, and the second signal strength represents the signal strength of other cells neighboring the cell currently camped on the terminal, where the second signal strength may be one or more, and specifically determined by actual conditions, there are multiple cells with multiple second signal strengths.
More specifically, in this embodiment, the object of measuring the signal strength is an SSB beam, and the bottom layer is based on the signal strength of the beam in the neighboring cell when measuring the second signal strength of the neighboring cell, and the specific process includes:
and acquiring a configuration threshold value, a configuration quantity value and the signal intensity of each wave beam in the first adjacent region.
The configuration threshold is an absThreshSS-blocksConsolidation parameter, the configuration quantity value is an nrofSS-blocksToAvage parameter, both of the parameters are issued by the network and affect cell reselection, the first neighbor cell is a determination process for distinguishing and explaining the signal strength (second signal strength) of a single neighbor cell, and the specific influence process is as follows.
If the configuration threshold value and the configuration quantity value are only one, or the signal intensity of each wave beam in the first adjacent cell is not larger than the configuration threshold value, taking the maximum signal intensity in the first adjacent cell as the second signal intensity of the first adjacent cell, and if the two conditions are not met, selecting a plurality of signal intensities in a descending order from the maximum signal intensity in the first adjacent cell to perform an averaging technique to serve as the second signal intensity of the first adjacent cell, wherein the number of the plurality of signal intensities is equal to the configuration quantity value.
When one of the absThreshSS-BlocksConsolidation parameter and the nrofSS-BlocksToAvage parameter is not configured, the highest signal strength in the signal strengths of all beams in the first adjacent cell is taken as the signal strength of the first adjacent cell; when the two parameters are configured, but the signal strengths of all beams in the first neighbor cell are not more than the absthreshSS-blocksConsolitation parameter, taking the highest signal strength in the signal strengths of all beams in the first neighbor cell as the signal strength of the first neighbor cell; if both parameters are configured and the signal strengths of all beams in the first neighbor are greater than the absthreshSS-blocksConjugation parameter, then the nrofSS-blocksToAverage highest value which is greater than the absthreshSS-blocksConjugation parameter is selected from the signal strengths of all beams in the first neighbor to be averaged to be used as the signal strength of the first neighbor.
In the above-mentioned process of determining the signal strength of only one neighboring cell (first neighboring cell), the signal strength of each neighboring cell is determined by the same steps as above.
S120, judging whether the second signal strength is continuously greater than the sum of the first signal strength and a configuration threshold value within a first preset time.
Step S120 is a determining process of neighboring cell reselection, where the neighboring cell reselection condition may be a commonly used priority determination, a threshold determination, and the like, and in this embodiment, a neighboring cell reselection condition based on a configured threshold is adopted, and when it is determined that the neighboring cell reselection condition is satisfied according to the second signal strength and the first signal strength, if the determining condition is that whether the second signal strength is continuously greater than a sum of the first signal strength and the configured threshold within a first preset time, the configured threshold is an absThreshSS-blocksConsolidation parameter.
S130, if not, acquiring a third signal intensity of the same-zone beam in the cell to which the current beam belongs.
The beam selection method provided in this embodiment is mainly for a beam switching situation when an idle terminal does not satisfy a neighboring cell reselection condition, and when the terminal is in an idle state, an RRC layer (Radio resource control layer) of the terminal evaluates signal strength reported by a bottom layer, where the evaluation is different from neighboring cell reselection, and the switching at this time needs to be performed in a current serving cell, and the evaluation in step S140 is directed to a co-cell beam in the current serving cell, so that a third signal strength of the co-cell beam in a cell (i.e., the current serving cell) to which the current beam belongs needs to be obtained.
S140, judging whether the third signal strength is continuously greater than the sum of the first signal strength and a preset hysteresis value within a second preset time period, wherein the second preset time period and the preset hysteresis value are determined by the first signal strength and a preset threshold value.
After the third signal strength of the co-region beam is obtained, it needs to be further determined how to select an appropriate co-region beam, which specifically includes: and judging whether a beam with third signal intensity exceeding a preset hysteresis value compared with the first signal intensity exists in the same-zone beams or not, wherein the duration of the third signal intensity exceeding the first signal intensity and reaching the preset hysteresis value is longer than a preset duration, if so, the beam meeting the two conditions is larger and more stable than the signal intensity of the beam (current beam) currently resided by the terminal, and if not, the beam does not have a better selection than the beam currently resided by the terminal in the current serving cell.
In this embodiment, it is further considered that when the first signal strength of the current beam where the terminal resides is large, the current beam can already meet the actual requirement, and therefore the beam switching requirement is not large, and the beam switching requirement can be appropriately adjusted to avoid frequent beam switching, and when the first signal strength of the current beam where the terminal resides is small, the current beam where the terminal resides cannot meet the actual requirement, and therefore a better beam needs to be quickly selected, and the switching speed can be appropriately increased for the signal strength.
And S150, if so, determining the same-zone beam corresponding to the third signal intensity as a target beam, and switching the current beam to the target beam.
When a third signal strength is greater than the sum of the first signal strength and a preset hysteresis value, and a duration time that the third signal strength is greater than the sum of the first signal strength and the preset hysteresis value is greater than a second preset time, it is described that a co-region beam corresponding to the third signal strength is a beam that is better than a current beam.
More specifically, in some embodiments, as shown in fig. 2, after determining whether the second signal strength is continuously greater than the sum of the first signal strength and the configured threshold value within the first preset time period in step S120, the method further includes a neighboring cell reselection process when a neighboring cell reselection condition is met, specifically including:
and S160, if so, taking the adjacent cell corresponding to the second signal strength as a target adjacent cell, and switching the service cell to the target adjacent cell.
When the adjacent cell reselection condition is met, the terminal needs to switch the serving cell to complete the adjacent cell reselection, that is, the serving cell is switched to the adjacent cell corresponding to the second signal strength meeting the adjacent cell reselection condition.
S160, selecting a target neighbor wave beam from the target neighbor according to a preset rule, and switching the current wave beam to the target neighbor wave beam.
After the serving cell of the terminal is switched to the target neighbor cell, the beam where the terminal resides is also changed, and the beam where the terminal currently resides is switched to the beam in the target neighbor cell, and specifically how to select the beam in the target neighbor cell may be according to a preset rule of a general neighbor cell reselection process.
Further, in some cases, there may be a plurality of co-region beams that satisfy both of the above two conditions, and in some embodiments, when there are a plurality of co-region beams satisfying the third signal strength for a second predetermined time duration that is continuously greater than the sum of the first signal strength and a predetermined hysteresis value, the co-region beam with the largest signal strength among the plurality of co-region beams is selected as the target beam.
And when the third signal intensity in the second preset time duration is not greater than the sum of the first signal intensity and the preset hysteresis value continuously in the co-region beam, the terminal can continue to reside in the current beam.
Compared with the method for selecting the beam only according to the strength of the beam, the method for selecting the beam is only used for switching the beam when the stable target co-region beam with enough signal intensity is judged, the beam switching frequency is low, the signal intensity of the switched target beam is stable, and compared with the method for not switching the single beam occupied after the cell reselection, the beam switching is timely, the beam with stable intensity can be kept constantly, and the problems that the signal intensity is unstable, the beam is frequently switched, the beam is seriously attenuated, the beam is not timely switched and the like when the beam is selected by the idle 5G terminal in the prior art are solved.
In an embodiment, a part of the flow in the beam selection method is further explained and exemplified on the basis of the previous embodiment, and specifically as shown in fig. 3, the beam selection method provided in this embodiment specifically includes:
s200, setting a preset hysteresis value and/or a preset duration according to a user instruction.
The preset hysteresis value and the preset duration are two self-defined parameters for judging how to switch the beam, and a user can set corresponding specific numerical values according to different actual conditions.
S210, obtaining a first signal intensity of the current wave beam and a second signal intensity of the adjacent area.
S220, judging whether the second signal strength is continuously greater than the sum of the first signal strength and a configuration threshold value within a first preset time.
And S230, if not, acquiring a third signal intensity of the same-zone beam in the cell to which the current beam belongs.
If the neighboring cell reselection condition is not met, it is required to determine whether a better beam is available in the current serving cell for selection, specifically, the determining process is to determine whether the third signal strength in a second preset time duration is continuously greater than a sum of the first signal strength and a preset hysteresis value, where the second preset time duration and the preset hysteresis value are determined by the first signal strength and a preset threshold value, which is specifically explained as steps S240 to S270 in this embodiment, where the preset threshold value includes a first preset threshold value and a second preset threshold value, the first preset threshold value is a difference between the configuration threshold value and a user-defined value, the second preset threshold value is a sum of the configuration threshold value and the user-defined value, and the configuration threshold value is a threshold value issued by the network.
S240, judging whether the first signal strength is smaller than the first preset threshold value.
For the first beam in which the terminal currently resides, in this embodiment, the process of performing beam switching according to the specific signal strength distinction thereof is as follows: the first preset threshold and the second preset threshold correspond to different preset hysteresis values and different preset durations respectively, the preset hysteresis value and the preset duration corresponding to the first preset threshold are used for switching the wave beam when the first signal intensity of the current wave beam is smaller than the first preset threshold, and the preset hysteresis value and the preset duration corresponding to the second preset threshold are used for switching the wave beam when the first signal intensity is larger than the second preset threshold. Specifically, the first preset threshold and the second preset threshold may be different according to different actual situations. In this embodiment, the first preset threshold is smaller than the second preset threshold.
S250, if the first signal strength is smaller than the first preset threshold, determining whether the third signal strength is continuously greater than the sum of the first signal strength and a preset hysteresis value corresponding to the first preset threshold within a preset duration corresponding to the first preset threshold.
S260, if the first signal strength is not smaller than the first preset threshold, judging whether the first signal strength is larger than a second preset threshold.
And S270, if the first signal strength is greater than the second preset threshold, judging whether the third signal strength is continuously greater than the sum of the first signal strength and a preset hysteresis value corresponding to the second preset threshold within a preset time period corresponding to the second preset threshold.
Of course, the first signal strength is not greater than or equal to the first preset threshold and is greater than the second preset threshold, and in this case, the third signal strength and the first signal strength are not judged and compared, that is, the judgment result of whether the third signal strength is continuously greater than the sum of the first signal strength and the preset hysteresis value within the second preset duration is negative.
According to the analysis, when the first signal strength is higher, the numerical value of the preset hysteresis value and the preset duration as the beam switching judgment standard should be higher to avoid frequent beam switching, which considers that the higher the first signal strength is, the actual requirement of the first signal strength can be met, and the switching signal brings inconvenience to normal work, so that frequent beam switching needs to be avoided as much as possible, the beam switching judgment standard needs to be improved, and conversely, when the first signal strength is lower, the influence of the signal loudness on normal work is larger, so that the beam with higher and more stable signal strength needs to be switched urgently, and the beam switching judgment standard needs to be reduced. That is, the preset hysteresis value corresponding to the first preset threshold is greater than the preset hysteresis value corresponding to the second preset threshold, and the preset duration corresponding to the first preset threshold is greater than the preset duration corresponding to the second preset threshold, for example, in step S200, the preset hysteresis value corresponding to the first preset threshold may be set to 6db, the preset hysteresis value corresponding to the second preset threshold may be set to 3db, the preset duration corresponding to the first preset threshold is 1000ms, and the preset duration corresponding to the second preset threshold is 500 ms.
Similarly, in some cases, there may be multiple co-regional beams that satisfy both the hysteresis value and the duration, and accordingly, in some embodiments, one co-regional beam with the largest signal strength may be selected as the target beam.
And S280, if so, determining the same-zone beam corresponding to the third signal intensity as a target beam, and switching the current beam to the target beam.
And when the target beam is determined, the terminal switches the current beam to the target beam to complete the beam switching.
And S290, if not, the terminal continues to reside in the current beam.
If there is no suitable target beam (which may not meet the requirements of the hysteresis value and the duration in steps S250 and S270, or may not meet the requirements of the first signal strength for the preset threshold in steps S230 and S250, that is, the first signal strength is not greater than the first preset threshold and is not less than the second preset threshold), the terminal continues to camp on the current beam until the target beam is found (which may reach the requirements of the preset hysteresis value and the second preset duration in steps S250 and S270).
On the basis of the previous embodiment, the present embodiment further adds a process of selecting a preset hysteresis value and a second preset duration as beam switching judgment criteria according to different differences of the first signal strengths to complete beam switching, so as to further avoid the problems of frequent beam switching, unstable signal strength, untimely beam switching, and the like, caused by unreasonable settings of the hysteresis value and the duration when the signal strengths of the first beams are different.
Fig. 4 is a schematic structural diagram of a beam selection apparatus according to an embodiment of the present invention, and as shown in fig. 4, the beam selection apparatus 300 includes:
the first signal strength obtaining module 310 is configured to obtain a first signal strength of a current beam and a second signal strength of a neighboring beam.
In one embodiment, the intensity acquisition module 310 includes:
a neighboring cell signal strength obtaining unit, configured to obtain a configuration threshold value, a configuration quantity value, and a signal strength of each beam in a first neighboring cell, and if only one of the configuration threshold value and the configuration quantity value is obtained, or if the signal strength of each beam in the first neighboring cell is not greater than the configuration threshold value, take a maximum signal strength in the first neighboring cell as a second signal strength of the first neighboring cell, and if the two conditions are not satisfied, select, in a descending order, a plurality of signal strengths from the maximum signal strength in the first neighboring cell to perform an averaging technique as the second signal strength of the first neighboring cell, where the number of the plurality of signal strengths is equal to the configuration quantity value.
When one of the absThreshSS-BlocksConsolidation parameter and the nrofSS-BlocksToAvage parameter is not configured, the highest signal strength in the signal strengths of all beams in the first neighbor cell is taken as the signal strength of the first neighbor cell; when the two parameters are configured, but the signal strengths of all beams in the first neighbor cell are not more than the absthreshSS-blocksConsolitation parameter, taking the highest signal strength in the signal strengths of all beams in the first neighbor cell as the signal strength of the first neighbor cell; if both parameters are configured and the signal strengths of all beams in the first neighbor are greater than the absthreshSS-blocksConjugation parameter, then the nrofSS-blocksToAverage highest value which is greater than the absthreshSS-blocksConjugation parameter is selected from the signal strengths of all beams in the first neighbor to be averaged to be used as the signal strength of the first neighbor.
The reselection determination module 320 is configured to determine whether the second signal strength is continuously greater than a sum of the first signal strength and a configuration threshold value within a first preset time period.
A second signal strength obtaining module 330, configured to obtain a third signal strength of a beam in the same cell in the cell to which the current beam belongs if the second signal strength is not continuously greater than the sum of the first signal strength and a configuration threshold value within a first preset time period.
An intra-cell reselection determining module 340, configured to determine whether the third signal strength is continuously greater than a sum of the first signal strength and a preset hysteresis value within a second preset time period, where the second preset time period and the preset hysteresis value are determined by the first signal strength and a preset threshold.
Optionally, in some embodiments, the apparatus further comprises:
and the neighbor cell reselection module is configured to, if the second signal strength is continuously greater than the sum of the first signal strength and a configuration threshold value within a first preset time period, use a neighbor cell corresponding to the second signal strength as a target neighbor cell, and switch a serving cell to the target neighbor cell.
And the neighbor cell beam switching module is used for selecting a target neighbor cell beam from the target neighbor cell according to a preset rule and switching the current beam to the target neighbor cell beam.
Optionally, in an embodiment, the preset threshold includes a first preset threshold and a second preset threshold, where the first preset threshold is a difference between the configuration threshold and a user-defined value, the second preset threshold is a sum of the configuration threshold and the user-defined value, and the configuration threshold is a threshold issued by the network, as shown in fig. 5, the intra-area reselection determining module 340 includes:
a first threshold determination unit 341, configured to determine whether the first signal strength is smaller than the first preset threshold;
a first in-cell reselection determining unit 342, configured to determine, if the first signal strength is smaller than the first preset threshold, whether the third signal strength is continuously greater than a sum of the first signal strength and a preset hysteresis value corresponding to the first preset threshold within a preset duration corresponding to the first preset threshold;
a second threshold determining unit 343, configured to determine, if the first signal strength is not smaller than the first preset threshold, whether the first signal strength is greater than a second preset threshold;
a second in-zone reselection determining unit 344, configured to determine, if the first signal strength is greater than the second preset threshold, whether the third signal strength is continuously greater than a sum of the first signal strength and a preset hysteresis value corresponding to the second preset threshold within a preset duration corresponding to the second preset threshold.
And when the first signal strength is not greater than the first preset threshold value and not less than the second preset threshold value, the corresponding comparison process of the third signal strength and the first signal strength is not carried out, namely, the requirement is considered not to be met, and the switching of the same-zone beams is not carried out.
The beam switching module 350 is configured to determine a co-region beam corresponding to the third signal strength as a target beam and switch the current beam to the target beam if the third signal strength is continuously greater than the sum of the first signal strength and a preset hysteresis value within a second preset duration.
More specifically, when the third signal strength within the second preset duration does not exist in the co-region beam, and is continuously greater than the sum of the first signal strength and the preset hysteresis value, it is determined that no suitable co-region beam can be switched, and the terminal continues to camp on the current beam at this time, and more specifically, when the first signal strength is not greater than the first preset threshold, and is not less than the second preset threshold, the terminal continues to camp on the current beam.
In one embodiment, the beam selection apparatus further includes:
and the numerical value setting module is used for determining a preset hysteresis value and/or a preset duration according to a user instruction.
The embodiment provides a beam selection device, which can switch beams timely, maintain beams with stable intensity constantly, and solve the problems of unstable signal intensity, frequent beam switching, serious beam attenuation, untimely beam switching and the like when an idle 5G terminal selects beams in the prior art.
Fig. 6 is a schematic structural diagram of a communication terminal 400 according to an embodiment of the present invention, as shown in fig. 6, the terminal includes a storage device 410 and a processor 420, the number of the processors 420 in the communication terminal 400 may be one or more, and one processor 420 is taken as an example in fig. 6; the storage device 410 and the processor 420 in the communication terminal 400 may be connected by a bus or other means, and fig. 6 illustrates the connection by the bus as an example.
The storage device 410, which is a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the beam selection method in the embodiment of the present invention (for example, the first signal strength acquisition module 310, the reselection determination module 320, the second signal strength acquisition module 330, the intra-area reselection determination module 340, and the beam switching module 350 in the beam selection device). The processor 420 executes various functional applications of the terminal and data processing, i.e., implements the beam selection method described above, by executing software programs, instructions, and modules stored in the storage device 410.
Wherein the processor 420 is configured to run the computer executable program stored in the storage device 410 to implement the following steps: step S110, acquiring a first signal intensity of a current wave beam and a second signal intensity of an adjacent area; step S120, judging whether the second signal strength is continuously greater than the sum of the first signal strength and a configuration threshold value within a first preset time period; step S130, if not, acquiring a third signal intensity of the same-zone beam in the cell to which the current beam belongs; step S140, determining whether the third signal strength is continuously greater than the sum of the first signal strength and a preset hysteresis value within a second preset time period, where the second preset time period and the preset hysteresis value are determined by the first signal strength and a preset threshold; and step S150, if yes, determining the same-zone beam corresponding to the third signal intensity as a target beam, and switching the current beam to the target beam.
In one embodiment, the processor 420, when executing the computer program, may further perform the steps of:
s200, determining a preset hysteresis value and/or a preset duration according to a user instruction.
S210, obtaining a first signal intensity of the current wave beam and a second signal intensity of the adjacent area.
S220, judging whether the second signal strength is continuously greater than the sum of the first signal strength and a configuration threshold value within a first preset time.
And S230, if so, taking the adjacent cell corresponding to the second signal strength as a target adjacent cell, and switching the service cell to the target adjacent cell.
S240, selecting a target neighbor wave beam from the target neighbor according to a preset rule, and switching the current wave beam to the target neighbor wave beam.
And S250, if not, acquiring a third signal intensity of the same-zone beam in the cell to which the current beam belongs.
S260, judging whether the first signal strength is smaller than the first preset threshold value.
And S270, if the first signal strength is smaller than the first preset threshold, judging whether the third signal strength is continuously larger than the sum of the first signal strength and a preset hysteresis value corresponding to the first preset threshold within a preset time period corresponding to the first preset threshold.
S280, if the first signal intensity is not smaller than the first preset threshold, judging whether the first signal intensity is larger than a second preset threshold.
S290, if the first signal strength is greater than the second preset threshold, determining whether the third signal strength is continuously greater than the sum of the first signal strength and a preset hysteresis value corresponding to the second preset threshold within a preset duration corresponding to the second preset threshold.
And S211, if so, determining the co-region beam corresponding to the third signal intensity as a target beam, and switching the current beam to the target beam.
And S212, if not, the terminal continues to reside in the current beam.
Of course, the communication terminal provided in the embodiment of the present invention is not limited to the above method operations, and may also perform related operations in the beam selection method provided in any embodiment of the present invention.
The storage device 410 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, storage 410 may include high speed random access storage, and may also include non-volatile storage, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the storage 410 may further include storage remotely located from the processor 420, which may be connected to the terminal over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Compared with the method of switching beams only according to the strength of the beams, the method of switching beams can switch beams only when the target beams with sufficient and stable signal strength are judged, the frequency of switching beams is low, the signal strength of the switched target beams is stable, and compared with the method of switching beams which occupy a single beam after cell reselection, the method of switching beams is timely, beams with stable strength can be kept constantly, and the problems that the signal strength is unstable, the beams are frequently switched, the beams are seriously attenuated, the beams are not switched timely and the like when the beams are selected by an idle 5G terminal in the prior art are solved.
EXAMPLE five
An embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a beam selection method, the beam selection method including:
acquiring a first signal intensity of a current wave beam and a second signal intensity of an adjacent cell;
judging whether the second signal strength is continuously greater than the sum of the first signal strength and a configuration threshold value within a first preset time length;
if not, acquiring a third signal intensity of the same-region beam in the cell to which the current beam belongs;
judging whether the third signal intensity is continuously greater than the sum of the first signal intensity and a preset hysteresis value within a second preset time length, wherein the second preset time length and the preset hysteresis value are determined by the first signal intensity and a preset threshold value;
if so, determining the same-zone beam corresponding to the third signal intensity as a target beam, and switching the current beam to the target beam.
Of course, the storage medium provided by the embodiments of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the method operations described above, and may also perform related operations in the beam selection method provided by any embodiment of the present invention.
The computer-readable storage medium provided in this embodiment implements a beam selection method, where beam switching is timely, a beam with stable intensity can be constantly maintained, and the problems in the prior art that when a 5G terminal in an idle state selects a beam, the signal intensity is unstable, beam switching is frequent, beam fading is severe, and beam switching is not timely are solved.
In one embodiment, the computer program when executed by the processor further performs the steps of:
s200, determining a preset hysteresis value and/or a preset duration according to a user instruction.
S210, obtaining a first signal intensity of the current wave beam and a second signal intensity of the adjacent area.
S220, judging whether the second signal strength is continuously greater than the sum of the first signal strength and a configuration threshold value within a first preset time.
And S230, if so, taking the adjacent cell corresponding to the second signal strength as a target adjacent cell, and switching the service cell to the target adjacent cell.
S240, selecting a target neighbor wave beam from the target neighbor according to a preset rule, and switching the current wave beam to the target neighbor wave beam.
And S250, if not, acquiring a third signal intensity of the same-zone beam in the cell to which the current beam belongs.
S260, judging whether the first signal strength is smaller than the first preset threshold value.
And S270, if the first signal strength is smaller than the first preset threshold, judging whether the third signal strength is continuously larger than the sum of the first signal strength and a preset hysteresis value corresponding to the first preset threshold within a preset time period corresponding to the first preset threshold.
S280, if the first signal intensity is not smaller than the first preset threshold, judging whether the first signal intensity is larger than a second preset threshold.
S290, if the first signal strength is greater than the second preset threshold, determining whether the third signal strength is continuously greater than the sum of the first signal strength and a preset hysteresis value corresponding to the second preset threshold within a preset duration corresponding to the second preset threshold.
And S211, if so, determining the co-region beam corresponding to the third signal intensity as a target beam, and switching the current beam to the target beam.
And S212, if not, the terminal continues to reside in the current beam.
In some cases, there may be multiple beams that satisfy both the hysteresis value and the duration, and accordingly, in some embodiments, the neighbor beam with the highest signal strength is selected as the target neighbor beam.
From the above description of the embodiments, it is clear to those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly can be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a device, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the beam selection apparatus, the units and modules included in the embodiment are only divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method of beam selection, the method comprising:
acquiring a first signal intensity of a current wave beam and a second signal intensity of an adjacent cell;
judging whether the second signal strength is continuously greater than the sum of the first signal strength and a configuration threshold value within a first preset time length;
if not, acquiring a third signal intensity of the same-region beam in the cell to which the current beam belongs;
judging whether the third signal intensity is continuously greater than the sum of the first signal intensity and a preset hysteresis value within a second preset time length, wherein the second preset time length and the preset hysteresis value are determined by the first signal intensity and a preset threshold value;
if so, determining the same-zone beam corresponding to the third signal intensity as a target beam, and switching the current beam to the target beam.
2. The method of claim 1, wherein after determining whether the second signal strength is continuously greater than the sum of the first signal strength and a configured threshold value for a first preset duration, further comprising:
if so, taking the adjacent cell corresponding to the second signal strength as a target adjacent cell, and switching the serving cell to the target adjacent cell;
and selecting a target neighbor wave beam from the target neighbor cell according to a preset rule, and switching the current wave beam to the target neighbor wave beam.
3. The method of claim 1, wherein the preset threshold comprises a first preset threshold and a second preset threshold, the first preset threshold is a difference between the configured threshold and a user-defined value, the second preset threshold is a sum of the configured threshold and the user-defined value, the configured threshold is a threshold issued by a network, and the determining whether the third signal strength is continuously greater than the sum of the first signal strength and a preset hysteresis value within a second preset duration comprises:
judging whether the first signal intensity is smaller than a first preset threshold value or not;
if the first signal intensity is smaller than the first preset threshold, judging whether the third signal intensity is continuously larger than the sum of the first signal intensity and a preset hysteresis value corresponding to the first preset threshold within a preset time corresponding to the first preset threshold;
if the first signal strength is not smaller than the first preset threshold, judging whether the first signal strength is larger than a second preset threshold;
if the first signal strength is greater than the second preset threshold, judging whether the third signal strength is continuously greater than the sum of the first signal strength and a preset hysteresis value corresponding to the second preset threshold within a preset time corresponding to the second preset threshold.
4. The method of claim 1, wherein a co-region beam with a maximum signal strength among the plurality of co-region beams is selected as the target beam when the third signal strength is continuously greater than the sum of the first signal strength and a predetermined hysteresis value within a second predetermined time period satisfied by the plurality of co-region beams.
5. The method of claim 1, wherein obtaining the second signal strength of the neighbor cell comprises:
acquiring a configuration threshold value, a configuration quantity value and the signal intensity of each wave beam in a first adjacent region;
if the configuration threshold value and the configuration quantity value are only one, or the signal intensity of each wave beam in the first adjacent cell is not larger than the configuration threshold value, taking the maximum signal intensity in the first adjacent cell as the second signal intensity of the first adjacent cell, and if the two conditions are not met, selecting a plurality of signal intensities in a descending order from the maximum signal intensity in the first adjacent cell to perform an averaging technique as the second signal intensity of the first adjacent cell, wherein the number of the plurality of signal intensities is equal to the configuration quantity value.
6. A beam selection apparatus, comprising:
the first signal intensity acquisition module is used for acquiring a first signal intensity of a current wave beam and a second signal intensity of a neighboring wave beam;
the reselection judgment module is used for judging whether the second signal strength is continuously greater than the sum of the first signal strength and a configuration threshold value within a first preset time period;
a second signal strength obtaining module, configured to obtain a third signal strength of a beam in the same cell in the cell to which the current beam belongs if the second signal strength is not greater than the sum of the first signal strength and a configuration threshold continuously within a first preset time period;
an intra-area reselection judging module, configured to judge whether the third signal strength is continuously greater than a sum of the first signal strength and a preset hysteresis value within a second preset time period, where the second preset time period and the preset hysteresis value are determined by the first signal strength and a preset threshold;
and the beam switching module is configured to determine a co-region beam corresponding to the third signal intensity as a target beam and switch the current beam to the target beam if the third signal intensity is continuously greater than the sum of the first signal intensity and a preset hysteresis value within a second preset duration.
7. The beam selection apparatus of claim 6, wherein the preset threshold comprises a first preset threshold and a second preset threshold, the first preset threshold is a difference between the configured threshold and a user-defined value, the second preset threshold is a sum of the configured threshold and the user-defined value, the configured threshold is a threshold issued by a network, and the in-zone reselection determining module comprises:
a first threshold value judging unit, configured to judge whether the first signal strength is smaller than the first preset threshold value;
a first in-cell reselection judging unit, configured to, if the first signal strength is smaller than the first preset threshold, judge whether the third signal strength is continuously greater than a sum of the first signal strength and a preset hysteresis value corresponding to the first preset threshold within a preset duration corresponding to the first preset threshold;
a second threshold determination unit, configured to determine whether the first signal strength is greater than a second preset threshold if the first signal strength is not less than the first preset threshold;
and the second in-zone reselection judging unit is configured to, if the first signal strength is greater than the second preset threshold, judge whether the third signal strength is continuously greater than a sum of the first signal strength and a preset hysteresis value corresponding to the second preset threshold within a preset duration corresponding to the second preset threshold.
8. The beam selection apparatus of claim 6, wherein the first signal strength acquisition module comprises:
a neighboring cell signal strength obtaining unit, configured to obtain a configuration threshold value, a configuration quantity value, and a signal strength of each beam in a first neighboring cell, and if the configuration threshold value and the configuration quantity value are only one or the signal strength of each beam in the first neighboring cell is not greater than the configuration threshold value, take a maximum signal strength in the first neighboring cell as a second signal strength of the first neighboring cell, and if the two conditions are not satisfied, select a plurality of signal strengths in a descending order from the maximum signal strength in the first neighboring cell to perform an averaging technique as the second signal strength of the first neighboring cell, where the number of the plurality of signal strengths is equal to the configuration quantity value.
9. A communication terminal, comprising
One or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, enable the one or more processors to implement the beam selection method of any of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the beam selection method according to any one of claims 1 to 7.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107889145A (en) * | 2016-09-29 | 2018-04-06 | 华为技术有限公司 | Switching method and device |
| US20200008092A1 (en) * | 2017-03-24 | 2020-01-02 | Huawei Technologies Co., Ltd. | Communication Method and Device |
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| CN107889145A (en) * | 2016-09-29 | 2018-04-06 | 华为技术有限公司 | Switching method and device |
| US20200008092A1 (en) * | 2017-03-24 | 2020-01-02 | Huawei Technologies Co., Ltd. | Communication Method and Device |
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| CN115699849A (en) * | 2020-08-07 | 2023-02-03 | Oppo广东移动通信有限公司 | Wireless communication method and apparatus |
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