CN109121208B - Beam scanning method and related equipment - Google Patents
Beam scanning method and related equipment Download PDFInfo
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- CN109121208B CN109121208B CN201710485462.0A CN201710485462A CN109121208B CN 109121208 B CN109121208 B CN 109121208B CN 201710485462 A CN201710485462 A CN 201710485462A CN 109121208 B CN109121208 B CN 109121208B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0868—Hybrid systems, i.e. switching and combining
- H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- 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
Abstract
The embodiment of the invention provides a beam scanning method and related equipment, wherein the method comprises the following steps: respectively using a first scanning beam and a second scanning beam to carry out full-directional scanning on a coverage area, wherein the width of the first scanning beam in a first dimension is smaller than that in a second dimension, and the width of the second scanning beam in the first dimension is larger than that in the second dimension; receiving a first identifier of a first intermediate beam and a second identifier of a second intermediate beam returned by the mobile communication terminal, wherein the first intermediate beam is a beam meeting a preset requirement in a first scanning beam, and the second intermediate beam is a beam meeting the preset requirement in a second scanning beam; and determining a communication target beam capable of being used for data communication with the mobile communication terminal according to the first identifier and the second identifier. The embodiment of the invention can improve the beam scanning efficiency.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a beam scanning method and a related device.
Background
In order to improve transmission performance in current communication systems, beam scanning is often required between a base station and a mobile communication terminal to determine a communication beam. At present, a narrow beam scanning mechanism is mainly adopted for beam scanning, and because the widths of narrow beams used for data transmission in the horizontal dimension and the vertical dimension are the same, traversal scanning needs to be performed in a scanning range in the narrow beam scanning mechanism, and therefore beam scanning efficiency is low. For example: taking a space covering 40 degrees in both the horizontal dimension and the vertical dimension as an example, as shown in fig. 1, it is assumed that the narrow beam width for data transmission is (H, V) = (10 ° ), where H denotes the beam width in the horizontal direction and V denotes the beam width in the vertical direction. Based on this mechanism, completing a complete beam scan of a coverage area requires switching 16 beams, assuming that the time for each beam switch is t, the time required for the process is 16t. It can be seen that the current communication system has a problem of relatively low beam scanning efficiency.
Disclosure of Invention
The embodiment of the invention provides a beam scanning method and related equipment, aiming at solving the problem of low beam scanning efficiency.
The embodiment of the invention provides a beam scanning method, which is used for a base station and comprises the following steps:
performing full-directional scanning on a coverage area by using a first scanning beam and a second scanning beam respectively, wherein the width of the first scanning beam in a first dimension is smaller than that of the second scanning beam in a second dimension, and the width of the second scanning beam in the first dimension is larger than that of the second scanning beam in the second dimension;
receiving a first identifier of a first intermediate beam and a second identifier of a second intermediate beam returned by a mobile communication terminal, wherein the first intermediate beam is a beam meeting a predetermined requirement in the first scanning beam, and the second intermediate beam is a beam meeting the predetermined requirement in the second scanning beam;
and determining a communication target beam capable of being used for data communication with the mobile communication terminal according to the first identifier and the second identifier, wherein the width of the communication target beam in a first dimension is equal to that of the first scanning beam in the first dimension, and the width of the communication target beam in a second dimension is equal to that of the second scanning beam in the second dimension.
Optionally, a width of the first scanning beam in the second dimension is equal to a width of the coverage area in the second dimension, and a width of the second scanning beam in the first dimension is equal to a width of the coverage area in the first dimension.
Optionally, the step of determining, according to the first identifier and the second identifier, a communication target beam that can be used for data communication with the mobile communication terminal specifically includes:
determining a first width of a first intermediate beam indicated by the first identifier in a first dimension;
determining a second width of a second intermediate beam indicated by the second identifier in a second dimension;
determining that the width of the communication target beam in a first dimension and a second dimension is equal to the first width and the second width, respectively.
Optionally, the step of determining, according to the first identifier and the second identifier, a communication target beam that can be used for data communication with the mobile communication terminal specifically includes:
determining a communication beam identifier corresponding to a combination of a first identifier and a second identifier according to a mapping relation between a communication beam identifier and the combination of the first scanning beam identifier and the second scanning beam identifier which is established in advance;
and determining the communication beam corresponding to the communication beam identification as the communication target beam.
An embodiment of the present invention further provides a beam scanning method, used in a mobile communication terminal, including:
receiving a first scanning beam and a second scanning beam which are sent when a coverage area is scanned in a full-direction manner by a base station, wherein the width of the first scanning beam in a first dimension is smaller than that in a second dimension, and the width of the second scanning beam in the first dimension is larger than that in the second dimension;
determining first and second intermediate beams of the first and second scanning beams that meet a predetermined requirement;
and sending a first identifier of the first intermediate beam and a second identifier of the second intermediate beam, so that the base station determines a communication target beam capable of being used for data communication with the mobile communication terminal according to the first identifier and the second identifier, wherein the width of the communication target beam in a first dimension is equal to the width of the first scanning beam in the first dimension, and the width of the communication target beam in a second dimension is equal to the width of the second scanning beam in the second dimension.
Optionally, the width of the first scanning beam in the second dimension is equal to the width of the coverage area in the second dimension, and the width of the second scanning beam in the first dimension is equal to the width of the coverage area in the first dimension.
An embodiment of the present invention further provides a base station, including:
a transceiver for performing a full directional scan of a coverage area using a first scan beam and a second scan beam, respectively, the first scan beam having a width in a first dimension that is less than a width in a second dimension, the second scan beam having a width in the first dimension that is greater than a width in the second dimension;
the transceiver is further configured to receive a first identifier of a first intermediate beam and a second identifier of a second intermediate beam returned by the mobile communication terminal, where the first intermediate beam is a beam of the first scanned beam that meets a predetermined requirement, and the second intermediate beam is a beam of the second scanned beam that meets the predetermined requirement;
a processor, configured to determine, according to the first identifier and the second identifier, a communication target beam that can be used for data communication with the mobile communication terminal, where a width of the communication target beam in a first dimension is equal to a width of the first scanning beam in the first dimension, and a width of the communication target beam in a second dimension is equal to a width of the second scanning beam in the second dimension.
Optionally, a width of the first scanning beam in the second dimension is equal to a width of the coverage area in the second dimension, and a width of the second scanning beam in the first dimension is equal to a width of the coverage area in the first dimension.
Optionally, the processor is configured to determine a first width of a first intermediate beam indicated by the first identifier in a first dimension, determine a second width of a second intermediate beam indicated by the second identifier in a second dimension, and determine widths of the communication target beam in the first dimension and the second dimension to be equal to the first width and the second width, respectively.
Optionally, the processor is configured to determine, according to a mapping relationship between a communication beam identifier and a combination of a first scanning beam identifier and a second scanning beam identifier, a communication beam identifier corresponding to the combination of the first identifier and the second identifier, and determine that a communication beam corresponding to the communication beam identifier is the communication target beam.
An embodiment of the present invention further provides a mobile communication terminal, including:
the transceiver is used for receiving a first scanning beam and a second scanning beam which are sent when a base station carries out full-direction scanning on a coverage area, wherein the width of the first scanning beam in a first dimension is smaller than that in a second dimension, and the width of the second scanning beam in the first dimension is larger than that in the second dimension;
a processor for determining first and second intermediate beams of the first and second scanned beams that meet a predetermined requirement;
the transceiver is further configured to transmit a first identifier of the first intermediate beam and a second identifier of the second intermediate beam, and to determine, by the base station, a communication target beam that can be used for data communication with the mobile communication terminal according to the first identifier and the second identifier, where a width of the communication target beam in a first dimension is equal to a width of the first scanning beam in the first dimension, and a width of the communication target beam in a second dimension is equal to a width of the second scanning beam in the second dimension.
Optionally, the width of the first scanning beam in the second dimension is equal to the width of the coverage area in the second dimension, and the width of the second scanning beam in the first dimension is equal to the width of the coverage area in the first dimension.
An embodiment of the present invention further provides a communication device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor; when executing the program, the processor implements the beam scanning method on the base station side according to the embodiment of the present invention, or implements the beam scanning method on the mobile communication terminal side according to the embodiment of the present invention.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the beam scanning method at the base station side provided in the embodiment of the present invention or implements the steps in the beam scanning method at the mobile communication terminal side provided in the embodiment of the present invention.
The technical scheme of the invention at least has the following beneficial effects:
in the embodiment of the invention, a coverage area is scanned in a full-direction mode by using a first scanning beam and a second scanning beam respectively, wherein the width of the first scanning beam in a first dimension is smaller than that in a second dimension, and the width of the second scanning beam in the first dimension is larger than that in the second dimension; receiving a first identifier of a first intermediate beam and a second identifier of a second intermediate beam returned by a mobile communication terminal, wherein the first intermediate beam is a beam meeting a predetermined requirement in the first scanning beam, and the second intermediate beam is a beam meeting the predetermined requirement in the second scanning beam; and determining a communication target beam capable of being used for data communication with the mobile communication terminal according to the first identifier and the second identifier, wherein the width of the communication target beam in a first dimension is equal to the width of the first scanning beam in the first dimension, and the width of the communication target beam in a second dimension is equal to the width of the second scanning beam in the second dimension. Because the width of the first scanning beam in the first dimension is smaller than the width of the first scanning beam in the second dimension, and the width of the second scanning beam in the first dimension is larger than the width of the second scanning beam in the second dimension, compared with the prior art that narrow beam scanning is adopted, the coverage range can be improved, and the beam scanning efficiency is further improved.
Drawings
FIG. 1 is a schematic diagram of a prior art beam scanning technique;
FIG. 2 is a schematic diagram of a network architecture provided by an embodiment of the present invention;
fig. 3 is a flowchart illustrating a beam scanning method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a fan beam provided by an embodiment of the present invention;
FIG. 5 is a schematic diagram of beam scanning provided by an embodiment of the present invention;
fig. 6 is a flow chart of another beam scanning method according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a mobile communication terminal according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another communication device according to an embodiment of the present invention.
Detailed Description
Referring to fig. 2, fig. 2 is a schematic diagram of a network structure provided by an embodiment of the present invention, and as shown in fig. 2, the network structure includes a base station 21 and a mobile communication terminal 22. The base station 21 may be an evolved Node B (eNB), a macro station, a micro base station, or the like, and it should be noted that the specific type of the base station 21 is not limited in this embodiment of the present invention. The mobile communication terminal 22 may be a mobile communication device such as a mobile phone, a tablet computer, a personal computer, a notebook computer, or a wearable device, and it should be noted that the embodiment of the present invention does not limit the specific type of the mobile communication terminal 22.
Referring to fig. 3, an embodiment of the present invention provides a beam scanning method, where the method is used in a base station, as shown in fig. 3, and the following steps are included:
301. performing full-directional scanning on a coverage area by using a first scanning beam and a second scanning beam respectively, wherein the width of the first scanning beam in a first dimension is smaller than that of the second scanning beam in a second dimension, and the width of the second scanning beam in the first dimension is larger than that of the second scanning beam in the second dimension;
302. receiving a first identifier of a first intermediate beam and a second identifier of a second intermediate beam returned by a mobile communication terminal, wherein the first intermediate beam is a beam meeting a predetermined requirement in the first scanning beam, and the second intermediate beam is a beam meeting the predetermined requirement in the second scanning beam;
303. and determining a communication target beam capable of being used for data communication with the mobile communication terminal according to the first identifier and the second identifier, wherein the width of the communication target beam in a first dimension is equal to that of the first scanning beam in the first dimension, and the width of the communication target beam in a second dimension is equal to that of the second scanning beam in the second dimension.
The first scanning beam may be one or more beams, and the first scanning beam may also be a beam set. Similarly, the second scanning beam may be one or more beams, or may be a beam set. In addition, in the embodiment of the present invention, both the first scanning beam and the second scanning beam may be fan beams, that is, the first scanning beam and the second scanning beam are characterized in that the beam width of the beam in the horizontal dimension is different from the beam width of the beam in the vertical dimension, that is, the beam width of the beam in one dimension is wider and the coverage is large, and the beam width of the beam in the other dimension is narrower and the coverage is small. Further, the first scanning beam and the second scanning beam can be divided into a horizontal dimension fan beam and a vertical dimension fan beam according to the widths of the first scanning beam and the second scanning beam in the horizontal dimension and the vertical dimension. For example: taking the first dimension as a horizontal dimension and the second dimension as a vertical dimension as an example, the first scanning beam may be defined as a vertical dimension fan beam, as shown in the left diagram of fig. 4, which has a larger beam width in the vertical elevation direction and a narrower beam width in the horizontal direction. Similarly, the second scanning beam may be defined as a horizontal dimension fan beam, and specifically, as shown in the right diagram of fig. 4, the horizontal dimension fan beam has a larger beam width in the horizontal elevation direction and a narrower beam width in the vertical direction.
In the above steps, since the widths of the two combinations of the two beams in two dimensions are exactly equal to the widths of the communication target beams in two dimensions, the two beams are scanned in one round, thereby improving the beam scanning efficiency and shortening the access time of the mobile communication terminal.
Preferably, the first scanning beam and the second scanning beam may be fan-shaped beams as shown in fig. 4 generated by adjusting a forming factor of the millimeter wave phased antenna array, so that the first scanning beam and the second scanning beam are used for beam scanning, thereby achieving reduction of scanning time and simplification of complexity. Of course, in the embodiment of the present invention, beam scanning may also be applied to other optimization schemes besides optimizing the beam scanning process by adjusting the beam shape, for example, in low-frequency assisted high-frequency access, a certain search range may be reduced by using a low frequency, and of course, a process of beam scanning search may also be performed by using a high-frequency signal in a finally reduced range, and the process may also be optimized by using a fan-shaped beam scheme.
It should be noted that, in the embodiment of the present invention, the first dimension and the second dimension are not limited, for example: the first dimension may be one of a vertical dimension and a horizontal dimension and the second dimension is the other of the vertical dimension and the horizontal dimension, e.g., the first dimension is the vertical dimension and the second dimension is the horizontal dimension.
Since the coverage area is scanned in a full direction by using the first scanning beam and the second scanning beam in step 301, the coverage area can be fully covered by the first scanning beam and the second scanning beam, respectively, so that the mobile communication terminal can select the first intermediate beam and the second intermediate beam on the first scanning beam and the second scanning beam, respectively. Wherein the predetermined requirement may be that the signal is strongest, or that the signal strength is first N bits, where N may be 1,2, or 3, etc., i.e. the first intermediate beam may be the beam with the strongest signal of the first scanning beam, or may be one or more beams in the first 1,2, or 3, etc., in the order of the highest signal strength in the first scanning beam. Likewise, the second intermediate beam may be the beam in which the signal intensity of the second scanned beam is the strongest, or may be one or more beams in the second scanned beam that are first 1,2, or 3, etc. in order of high to low signal intensity.
After receiving the first identifier and the second identifier, the communication target beam may be determined, and a width of the communication target beam in a first dimension is equal to a width of the first scanning beam in the first dimension, and a width of the communication target beam in a second dimension is equal to a width of the second scanning beam in the second dimension. Preferably, the communication target beam may be a beam whose coverage area overlaps with the coverage area of the first intermediate beam and overlaps with the coverage area of the second intermediate beam in the base station. Preferably, the communication target beam may be a narrow beam or a millimeter wave communication beam or the like.
Optionally, the width of the first scanning beam in the second dimension is equal to the width of the coverage area in the second dimension, and the width of the second scanning beam in the first dimension is equal to the width of the coverage area in the first dimension.
In this embodiment, since the width of the first scanning beam in the second dimension is equal to the width of the coverage area in the second dimension, and the width of the second scanning beam in the first dimension is equal to the width of the coverage area in the first dimension, the coverage area of beam scanning can be further increased, and the number of times of scanning is reduced, so as to further improve the beam scanning efficiency. For example: as shown in fig. 5, the widths of the first scanning beam in the horizontal dimension and the vertical dimension are (40, 10), and the widths of the second scanning beam in the horizontal dimension and the vertical dimension are (10, 40), so that it is possible to complete two times of full coverage on the coverage area by scanning only 8 times, that is, the time for scanning the fan-shaped beams in the horizontal dimension and the vertical dimension is 8t, and it is possible to complete the narrow beam number search for data transmission by all mobile communication terminals, where t is the time for each beam switching.
Optionally, the step of determining, according to the first identifier and the second identifier, a communication target beam that can be used for data communication with the mobile communication terminal specifically includes:
determining a first width of a first intermediate beam indicated by the first identifier in a first dimension;
determining a second width of a second intermediate beam indicated by the second identifier in a second dimension;
determining that widths of the communication target beam in a first dimension and a second dimension are equal to the first width and the second width, respectively.
In this embodiment, it is possible to determine the communication target beam by using the first width of the first intermediate beam in the first dimension and the second width of the second intermediate beam in the second dimension, so that the communication target beam can be determined quickly. For example: as shown in fig. 5, the first identifier may determine that the first intermediate beam is the 3 rd horizontal beam, and the second identifier may determine that the second intermediate beam is the 1 st vertical beam, so as to determine the communication target beam corresponding to the coverage area shown in fig. 5 by 9.
Optionally, the step of determining, according to the first identifier and the second identifier, a communication target beam that can be used for data communication with the mobile communication terminal includes:
determining a communication beam identifier corresponding to a combination of a first identifier and a second identifier according to a mapping relation between a communication beam identifier and the combination of the first scanning beam identifier and the second scanning beam identifier which is established in advance;
and determining the communication beam corresponding to the communication beam identification as the communication target beam.
In this embodiment, the communication beam identifier corresponding to the combination of the first identifier and the second identifier may be determined through the mapping relationship, so as to quickly determine the communication target beam. The mapping relationship may be as shown in table 1:
table 1:
in addition, the angular relationship of the target beam, the horizontal dimension beam, and the vertical dimension beam may be as shown in table 2:
table 2:
in tables 1 and 2, the first scanning beam is taken as a horizontal dimension beam, the second scanning beam is taken as a vertical dimension wave, and the coverage area is an area of 40 degrees both horizontally and vertically. In table 2, (x, y) x represents an angle in the horizontal dimension, and y represents an angle in the vertical dimension.
For example: as shown in fig. 5, the first intermediate beam is the beam number 3 identified in the horizontal dimension as the first beam number 3 in the first scanning beam, and the second intermediate beam is the beam number 1 identified in the vertical dimension as the second beam number 1 in the second scanning beam, so that the beam identified as the communication beam 9 for performing data communication is the communication target beam. Of course, for the example shown in fig. 5, it may also be determined that the beam for data communication, which is identified as 9, is the communication target beam described above by 2 × 4+1=9, where 2 × 4+1=9 represents the row 3 and the column 3, and each row is 4 beams.
It should be noted that, in the embodiment of the present invention, an execution sequence of step 301 and step 302 is not limited, and the two steps may be executed sequentially, or a part of the events in step 301 is executed first, then a part of the events in step 302 is executed, then step 301 is executed continuously, and then step 302 is executed until the first identifier and the second identifier are obtained. For example: setting a beam set of a horizontal dimension fan-shaped beam and a vertical dimension fan-shaped beam according to the coverage range of a base station and the beam width of the fan-shaped beam, and assuming that the coverage is finished, M horizontal dimension fan-shaped beams are needed, and the beam numbers are 1,2, \8230andM respectively; n vertical dimension fan beams are required, with the beam numbers 1,2, \8230, N, respectively. Wherein the beam set of the horizontal dimension fan beams is the first scan beam and the beam set of the vertical dimension fan beams is the second scan beam, i.e., the first scan beam is M horizontal dimension fan beams and the first scan beam is N vertical dimension fan beams. In addition, it is assumed that there are K narrow beams for data transmission in the coverage area, and the number of each beam is 1,2, \8230k, i.e. there are K beams for data communication. Then, the base station may scan the coverage area with a fan beam in the horizontal dimension (or the vertical dimension); the mobile communication terminal feeds back the optimal horizontal dimension (or vertical dimension) fan-shaped wave beam number m to the base station side by detecting the signal quality under different wave beam numbers; then, the base station may scan the coverage area using a fan beam in a vertical dimension (or a horizontal dimension); the mobile communication terminal feeds back the optimal vertical dimension (or horizontal dimension) fan-shaped wave beam number n to the base station side by detecting the signal quality under different wave beam numbers; finally, the base station may determine a narrow beam number k of the final data transmission, that is, the communication target beam, according to the fan-shaped beam numbers m, n in the two dimensions.
Compared with the traditional narrow beam scanning mode, the beam scanning method provided by the embodiment of the invention can adopt the fan-shaped wide beam to scan when the distance between the receiving and sending equipment is short, thereby greatly reducing the times and time of beam scanning and searching and improving the system efficiency. And the position of the mobile communication terminal and the narrow beam ID used for data transmission can be directly determined without performing second-stage narrow beam scanning, so that the searching and scanning time of the system is further reduced.
In the embodiment of the present invention, a coverage area is scanned in a full-direction by using a first scanning beam and a second scanning beam, respectively, where a width of the first scanning beam in a first dimension is smaller than a width of the first scanning beam in a second dimension, and a width of the second scanning beam in the first dimension is larger than the width of the second scanning beam in the second dimension; receiving a first identifier of a first intermediate beam and a second identifier of a second intermediate beam returned by a mobile communication terminal, wherein the first intermediate beam is a beam meeting a predetermined requirement in the first scanning beam, and the second intermediate beam is a beam meeting the predetermined requirement in the second scanning beam; and determining a communication target beam capable of being used for data communication with the mobile communication terminal according to the first identifier and the second identifier, wherein the width of the communication target beam in a first dimension is equal to the width of the first scanning beam in the first dimension, and the width of the communication target beam in a second dimension is equal to the width of the second scanning beam in the second dimension. Because the width of the first scanning beam in the first dimension is smaller than that in the second dimension, and the width of the second scanning beam in the first dimension is larger than that in the second dimension, compared with the prior art that narrow beam scanning is adopted, the coverage area can be improved, the beam scanning efficiency is further improved, and the access time of the mobile communication terminal can be shortened.
Referring to fig. 6, another beam scanning method provided in the embodiment of the present invention is applied to a mobile communication terminal, and as shown in fig. 6, the method includes the following steps:
The first scanning beam, the second scanning beam, the predetermined requirement, the first intermediate beam, the second intermediate beam, and the like can all be described in the embodiment shown in fig. 3, which is not described herein again and can achieve the same beneficial effects.
Optionally, a width of the first scanning beam in the second dimension is equal to a width of the coverage area in the second dimension, and a width of the second scanning beam in the first dimension is equal to a width of the coverage area in the first dimension.
The first scanning beam and the second scanning beam can be referred to the corresponding description in the embodiment shown in fig. 3, which is not described herein again and can achieve the same beneficial effects.
It should be noted that, this embodiment is taken as an implementation of the mobile communication terminal corresponding to the embodiment shown in fig. 3, and specific implementation thereof may refer to the relevant description of the embodiment shown in fig. 3, so that, in order to avoid repeated description, the embodiment is not described again, and the same beneficial effects may also be achieved.
Referring to fig. 7, an embodiment of the present invention provides a base station, as shown in fig. 7, a base station 700 includes:
a transceiver 701 configured to perform a full directional scan on a coverage area using a first scan beam and a second scan beam, respectively, where a width of the first scan beam in a first dimension is smaller than a width of the second scan beam in a second dimension, and a width of the second scan beam in the first dimension is larger than the width of the second scan beam in the second dimension;
the transceiver 701 is further configured to receive a first identifier of a first intermediate beam and a second identifier of a second intermediate beam returned by the mobile communication terminal, where the first intermediate beam is a beam that meets a predetermined requirement in the first scanned beam, and the second intermediate beam is a beam that meets the predetermined requirement in the second scanned beam;
a processor 702, configured to determine, according to the first identifier and the second identifier, a communication target beam that can be used for data communication with the mobile communication terminal, where a width of the communication target beam in a first dimension is equal to a width of the first scanning beam in the first dimension, and a width of the communication target beam in a second dimension is equal to a width of the second scanning beam in the second dimension.
Optionally, the width of the first scanning beam in the second dimension is equal to the width of the coverage area in the second dimension, and the width of the second scanning beam in the first dimension is equal to the width of the coverage area in the first dimension.
Optionally, the processor 702 is configured to determine a first width of a first intermediate beam indicated by the first identifier in a first dimension, determine a second width of a second intermediate beam indicated by the second identifier in a second dimension, and determine that widths of the communication target beam in the first dimension and the second dimension are equal to the first width and the second width, respectively.
Optionally, the processor 702 is configured to determine, according to a mapping relationship between a communication beam identifier and a combination of a first scanning beam identifier and a second scanning beam identifier, a communication beam identifier corresponding to the combination of the first identifier and the second identifier, and determine that a communication beam corresponding to the communication beam identifier is the communication target beam.
The base station in this embodiment can implement each process implemented by the base station in the method embodiments of fig. 3 to fig. 6, and for avoiding repetition, details are not repeated here, and the same beneficial effects can be achieved.
Referring to fig. 8, an embodiment of the present invention provides a mobile communication terminal, as shown in fig. 8, a mobile communication terminal 800, including:
a transceiver 801, configured to receive a first scanning beam and a second scanning beam that are sent when a base station performs full-directional scanning on a coverage area, where a width of the first scanning beam in a first dimension is smaller than a width of the first scanning beam in a second dimension, and a width of the second scanning beam in the first dimension is larger than the width of the second scanning beam in the second dimension;
a processor 802 for determining first and second ones of the first and second scan beams that meet a predetermined requirement;
the transceiver 801 is further configured to transmit a first identifier of the first intermediate beam and a second identifier of the second intermediate beam, and configured to determine, by the base station, a communication target beam that can be used for data communication with the mobile communication terminal according to the first identifier and the second identifier, where a width of the communication target beam in a first dimension is equal to a width of the first scanning beam in the first dimension, and a width of the communication target beam in a second dimension is equal to a width of the second scanning beam in the second dimension.
Optionally, the width of the first scanning beam in the second dimension is equal to the width of the coverage area in the second dimension, and the width of the second scanning beam in the first dimension is equal to the width of the coverage area in the first dimension.
The mobile communication terminal in this embodiment can implement each process implemented by the mobile communication terminal in the method embodiments of fig. 3 to fig. 6, and for avoiding repetition, the description is omitted here, and the same beneficial effects can be achieved.
Referring to fig. 9, an embodiment of the present invention provides a structure diagram of a communication device, where the communication device 900 may be a base station, as shown in fig. 9, the communication device 900 includes a memory 901, a processor 902, and a computer program stored in the memory 901 and operable on the processor 902, and when the processor 902 executes the program, the process is implemented as:
performing full-directional scanning on a coverage area by using a first scanning beam and a second scanning beam respectively, wherein the width of the first scanning beam in a first dimension is smaller than that in a second dimension, and the width of the second scanning beam in the first dimension is larger than that in the second dimension;
receiving a first identifier of a first intermediate beam and a second identifier of a second intermediate beam returned by a mobile communication terminal, wherein the first intermediate beam is a beam meeting a predetermined requirement in the first scanning beam, and the second intermediate beam is a beam meeting the predetermined requirement in the second scanning beam;
and determining a communication target beam capable of being used for data communication with the mobile communication terminal according to the first identifier and the second identifier, wherein the width of the communication target beam in a first dimension is equal to the width of the first scanning beam in the first dimension, and the width of the communication target beam in a second dimension is equal to the width of the second scanning beam in the second dimension.
Optionally, a width of the first scanning beam in the second dimension is equal to a width of the coverage area in the second dimension, and a width of the second scanning beam in the first dimension is equal to a width of the coverage area in the first dimension.
Optionally, the step, executed by the processor 802, of determining, according to the first identifier and the second identifier, a communication target beam that can be used for performing data communication with the mobile communication terminal specifically includes:
determining a first width of a first intermediate beam indicated by the first identifier in a first dimension;
determining a second width of a second intermediate beam indicated by the second identifier in a second dimension;
determining that widths of the communication target beam in a first dimension and a second dimension are equal to the first width and the second width, respectively.
Optionally, the step, executed by the processor 802, of determining, according to the first identifier and the second identifier, a communication target beam that can be used for data communication with the mobile communication terminal specifically includes:
determining a communication beam identifier corresponding to a combination of a first identifier and a second identifier according to a mapping relation between a communication beam identifier and the combination of the first scanning beam identifier and the second scanning beam identifier which is established in advance;
and determining the communication beam corresponding to the communication beam identification as the communication target beam.
It should be noted that, in this embodiment, the communication device may be a base station in any implementation manner in the method embodiment of the present invention, and any implementation manner of the base station in the method embodiment of the present invention may be implemented by the communication device in this embodiment to achieve the same beneficial effects, and details are not described here.
Referring to fig. 10, an embodiment of the present invention provides a structure diagram of another communication device, where a communication device 1000 may be a mobile communication terminal, as shown in fig. 10, the communication device 1000 includes a memory 1001, a processor 1002, and a computer program stored in the memory 1001 and executable on the processor 1002, and when the processor 1002 executes the program, the processor 1002 implements a process:
receiving a first scanning beam and a second scanning beam which are sent when a coverage area is scanned in a full-direction manner by a base station, wherein the width of the first scanning beam in a first dimension is smaller than that in a second dimension, and the width of the second scanning beam in the first dimension is larger than that in the second dimension;
determining first and second intermediate beams of the first and second scanned beams that meet a predetermined requirement;
and sending a first identifier of the first intermediate beam and a second identifier of the second intermediate beam, so that the base station determines a communication target beam capable of being used for data communication with the mobile communication terminal according to the first identifier and the second identifier, wherein the width of the communication target beam in a first dimension is equal to the width of the first scanning beam in the first dimension, and the width of the communication target beam in a second dimension is equal to the width of the second scanning beam in the second dimension.
Optionally, a width of the first scanning beam in the second dimension is equal to a width of the coverage area in the second dimension, and a width of the second scanning beam in the first dimension is equal to a width of the coverage area in the first dimension.
It should be noted that, the communication device in this embodiment may be a mobile communication terminal in any implementation manner in the method embodiment in the embodiment of the present invention, and any implementation manner of the mobile communication terminal in the method embodiment in the embodiment of the present invention may be implemented by the communication device in this embodiment to achieve the same beneficial effects, which is not described herein again.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the program, when executed by a processor, implements the steps in the beam scanning method at the base station side provided in the embodiment of the present invention, or implements the steps in the beam scanning method at the mobile communication terminal side provided in the embodiment of the present invention.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A method for beam scanning in a base station, comprising:
performing full-directional scanning on a coverage area by using a first scanning beam and a second scanning beam respectively, wherein the width of the first scanning beam in a first dimension is smaller than that of the second scanning beam in a second dimension, and the width of the second scanning beam in the first dimension is larger than that of the second scanning beam in the second dimension;
receiving a first identifier of a first intermediate beam and a second identifier of a second intermediate beam returned by a mobile communication terminal, wherein the first intermediate beam is a beam meeting a predetermined requirement in the first scanning beam, and the second intermediate beam is a beam meeting the predetermined requirement in the second scanning beam;
and determining a communication target beam capable of being used for data communication with the mobile communication terminal according to the first identifier and the second identifier, wherein the width of the communication target beam in a first dimension is equal to the width of the first scanning beam in the first dimension, and the width of the communication target beam in a second dimension is equal to the width of the second scanning beam in the second dimension.
2. The method of claim 1, wherein the width of the first scanning beam in the second dimension is equal to the width of the coverage area in the second dimension, and wherein the width of the second scanning beam in the first dimension is equal to the width of the coverage area in the first dimension.
3. The beam scanning method according to claim 1 or 2, wherein the step of determining a communication target beam that can be used for data communication with the mobile communication terminal according to the first identifier and the second identifier specifically comprises:
determining a first width of a first intermediate beam indicated by the first identifier in a first dimension;
determining a second width of a second intermediate beam indicated by the second identifier in a second dimension;
determining that widths of the communication target beam in a first dimension and a second dimension are equal to the first width and the second width, respectively.
4. The beam scanning method according to claim 1 or 2, wherein the step of determining a communication target beam that can be used for data communication with the mobile communication terminal according to the first identifier and the second identifier specifically comprises:
determining a communication beam identifier corresponding to a combination of a first identifier and a second identifier according to a mapping relation between a communication beam identifier and the combination of the first scanning beam identifier and the second scanning beam identifier which is established in advance;
and determining the communication beam corresponding to the communication beam identification as the communication target beam.
5. A beam scanning method for a mobile communication terminal, comprising:
receiving a first scanning beam and a second scanning beam which are sent when a base station carries out full-directional scanning on a coverage area, wherein the width of the first scanning beam in a first dimension is smaller than that in a second dimension, and the width of the second scanning beam in the first dimension is larger than that in the second dimension;
determining first and second intermediate beams of the first and second scanning beams that meet a predetermined requirement;
and sending a first identifier of the first intermediate beam and a second identifier of the second intermediate beam, so that the base station determines a communication target beam capable of being used for data communication with the mobile communication terminal according to the first identifier and the second identifier, wherein the width of the communication target beam in a first dimension is equal to the width of the first scanning beam in the first dimension, and the width of the communication target beam in a second dimension is equal to the width of the second scanning beam in the second dimension.
6. The method of claim 5, wherein the width of the first scanning beam in the second dimension is equal to the width of the coverage area in the second dimension, and wherein the width of the second scanning beam in the first dimension is equal to the width of the coverage area in the first dimension.
7. A base station, comprising:
a transceiver for performing a full directional scan of a coverage area using a first scan beam and a second scan beam, respectively, the first scan beam having a width in a first dimension that is less than a width in a second dimension, the second scan beam having a width in the first dimension that is greater than a width in the second dimension;
the transceiver is further configured to receive a first identifier of a first intermediate beam and a second identifier of a second intermediate beam returned by the mobile communication terminal, where the first intermediate beam is a beam of the first scanned beam that meets a predetermined requirement, and the second intermediate beam is a beam of the second scanned beam that meets the predetermined requirement;
a processor, configured to determine, according to the first identifier and the second identifier, a communication target beam that can be used for data communication with the mobile communication terminal, where a width of the communication target beam in a first dimension is equal to a width of the first scanning beam in the first dimension, and a width of the communication target beam in a second dimension is equal to a width of the second scanning beam in the second dimension.
8. The base station of claim 7, wherein the width of the first scanning beam in the second dimension is equal to the width of the coverage area in the second dimension, and wherein the width of the second scanning beam in the first dimension is equal to the width of the coverage area in the first dimension.
9. The base station of claim 7 or 8, wherein the processor is configured to determine a first width of a first intermediate beam indicated by the first indicator in a first dimension, determine a second width of a second intermediate beam indicated by the second indicator in a second dimension, and determine that the widths of the communication target beam in the first dimension and the second dimension are equal to the first width and the second width, respectively.
10. The base station according to claim 7 or 8, wherein the processor is configured to determine, according to a mapping relationship between a communication beam identifier and a combination of a first scanning beam identifier and a second scanning beam identifier, a communication beam identifier corresponding to the combination of the first identifier and the second identifier, and determine a communication beam corresponding to the communication beam identifier as the communication target beam.
11. A mobile communication terminal, comprising:
the transceiver is used for receiving a first scanning beam and a second scanning beam which are sent when a base station carries out full-direction scanning on a coverage area, wherein the width of the first scanning beam in a first dimension is smaller than that in a second dimension, and the width of the second scanning beam in the first dimension is larger than that in the second dimension;
a processor for determining first and second intermediate beams of the first and second scanned beams that meet a predetermined requirement;
the transceiver is further configured to transmit a first identifier of the first intermediate beam and a second identifier of the second intermediate beam, and the base station determines, according to the first identifier and the second identifier, a communication target beam that can be used for data communication with the mobile communication terminal, where a width of the communication target beam in a first dimension is equal to a width of the first scanning beam in the first dimension, and a width of the communication target beam in a second dimension is equal to a width of the second scanning beam in the second dimension.
12. The mobile communication terminal of claim 11, wherein the width of the first scanning beam in the second dimension is equal to the width of the coverage area in the second dimension, and wherein the width of the second scanning beam in the first dimension is equal to the width of the coverage area in the first dimension.
13. A communication device comprising a memory, a processor and a computer program stored on the memory and executable on the processor; wherein the processor, when executing the program, implements the beam scanning method of any one of claims 1 to 4 or implements the beam scanning method of any one of claims 5 to 6.
14. A computer readable storage medium, having stored thereon a computer program, characterized in that the program, when being executed by a processor, is adapted to carry out the steps of the beam scanning method of any one of the claims 1-4 or the steps of the beam scanning method of any one of the claims 5-6.
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