CN118694398A - Communication control method, network side device, terminal, and computer readable medium - Google Patents
Communication control method, network side device, terminal, and computer readable medium Download PDFInfo
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- 238000005259 measurement Methods 0.000 claims abstract description 43
- 230000011664 signaling Effects 0.000 claims abstract description 19
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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
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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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
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
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Abstract
The disclosure provides a communication control method applied to network side equipment, comprising the following steps: transmitting periodic beam scanning signaling; determining a cooperative transmission beam according to beam scanning data from a terminal, wherein the cooperative transmission beam consists of a first transmission beam and at least one second transmission beam, the first transmission beam is a transmission beam of a current access node corresponding to the terminal, and the second transmission beam is a transmission beam of an adjacent access node corresponding to the terminal; transmitting signaling for measuring the cooperative transmission beam to the terminal; and determining a target beam pair for communicating with the terminal according to the measurement data of the cooperative beam pair from the terminal, wherein the cooperative beam corresponds to the cooperative transmitting beam and the cooperative receiving beam of the terminal. The disclosure also provides a communication control method applied to the terminal, a network side device, a terminal and a computer readable medium.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a communication control method, a network side device, a terminal, and a computer readable medium.
Background
By adopting the multiple-input multiple-output (MIMO, multiple Input Multiple Output) transmission technology of multiple-antenna transmission and multiple-antenna reception, space dimension resources can be fully utilized, and spectral efficiency and energy efficiency are improved, which has become one of key technologies of New wireless (NR) of 5G. As the demand for communication has further grown rapidly, base station deployment has become denser, and large-scale antenna systems on the network side are gradually evolving from centralized to distributed. In the distributed system, the access nodes provided with multiple antennas at different geographic positions are connected to the central processing unit through high-speed backhaul links, or are connected with each other through the high-speed links, so that information interaction between a plurality of adjacent access nodes is established, and the plurality of access nodes on the network side can cooperate on the same time-frequency resource to complete communication transmission with the terminal.
The cooperation of a plurality of access nodes on the network side enables cooperative transmission. The cooperative transmission refers to that the network side equipment transmits beams to the same terminal through a plurality of access nodes at the same time. But cooperative transmission does not always improve communication system performance.
Disclosure of Invention
The embodiment of the disclosure provides a communication control method, network side equipment, a terminal and a computer readable medium.
In a first aspect, an embodiment of the present disclosure provides a communication control method, including: transmitting periodic beam scanning signaling; determining a cooperative transmission beam according to beam scanning data from a terminal, wherein the cooperative transmission beam consists of a first transmission beam and at least one second transmission beam, the first transmission beam is a transmission beam of a current access node corresponding to the terminal, and the second transmission beam is a transmission beam of an adjacent access node corresponding to the terminal; transmitting signaling for measuring the cooperative transmission beam to the terminal; and determining a target beam pair for communicating with the terminal according to the measurement data of the cooperative beam pair from the terminal, wherein the cooperative beam corresponds to the cooperative transmitting beam and the cooperative receiving beam of the terminal.
In a second aspect, an embodiment of the present disclosure provides a communication control method, including: responsive to periodic beam scanning signaling, performing beam scanning; transmitting the beam scanning data to the network device; determining a cooperative beam pair in response to signaling of measuring a cooperative transmission beam from the network side device, so as to obtain measurement data of the cooperative beam pair, wherein the cooperative transmission beam is composed of a first transmission beam and at least one second transmission beam, the first transmission beam is a transmission beam of a current access node corresponding to a terminal, the second transmission beam is a transmission beam of an adjacent access node corresponding to the terminal, and the cooperative beam corresponds to a cooperative reception beam of the cooperative transmission beam and the terminal; transmitting the measurement data to the network side equipment; and communicating according to the target beam pair determined by the network side equipment.
In a third aspect, an embodiment of the present disclosure provides a network side device, including: one or more processors; and a memory having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement the communication control method according to the first aspect of the embodiments of the present disclosure.
In a fourth aspect, an embodiment of the present disclosure provides a terminal, including: one or more processors; and a memory having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement the communication control method according to the second aspect of the embodiments of the present disclosure.
In a fifth aspect, embodiments of the present disclosure provide a computer-readable medium having stored thereon a computer program which, when executed by a processor, implements the communication control method according to the first or second aspect of the embodiments of the present disclosure.
In the embodiment of the disclosure, the network side equipment can determine a cooperative transmission beam formed by transmission beams of a plurality of access nodes according to beam scanning data obtained by periodically scanning the beams by the terminal, control the terminal to measure the cooperative transmission beam, and then determine a target beam pair for communication with the terminal according to measurement data obtained by measuring the cooperative transmission beam by the terminal; the network side manages the cooperative transmission beam as a new transmission beam, and controls the terminal to measure the cooperative transmission beam, so that cooperative transmission can be ensured based on an optimal beam pair in a cooperative transmission mode; in addition, the network side equipment can also make a decision between a single access node transmission mode and a cooperative transmission mode by selecting the target beam pair, so that the system performance is ensured, and the transmission efficiency of the system is improved.
Drawings
Fig. 1 is a schematic diagram of a single access point transmission scheme;
fig. 2 is a schematic diagram of a cooperative transmission scheme;
FIG. 3 is a flow chart of a communication control method in an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a cooperative transmission manner in an embodiment of the disclosure;
FIG. 5 is a flow chart of a communication control method in an embodiment of the present disclosure;
fig. 6 is a schematic diagram of a network side device in an embodiment of the disclosure;
fig. 7 is a schematic diagram of a terminal in an embodiment of the disclosure.
Detailed Description
In order to better understand the technical solutions of the present disclosure, the following describes in detail a communication control method, a network side device, a terminal, and a computer readable medium provided by the present disclosure with reference to the accompanying drawings.
Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Embodiments of the disclosure and features of embodiments may be combined with each other without conflict.
As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Millimeter wave communication systems typically communicate via beams, with both the access node and the terminal having multiple alternative beams, a transmit beam and a receive beam forming a beam pair, with the optimal beam pair selected for data transmission during beam management. As shown in fig. 1, but in the access node transmission scheme, the terminal communicates via a beam pair consisting of the terminal's receive beam and the access node 2's transmit beam. In the process of communication between the terminal and a certain access node, if the terminal feeds back a stronger adjacent access node transmitting beam through periodic beam measurement, and meanwhile, the network side equipment judges that the cooperative transmission condition is met, the adjacent access node transmitting beam fed back by the terminal and the current access node transmitting beam are transmitted simultaneously, and the cooperative transmission mode is adopted to carry out communication transmission with the terminal. As shown in fig. 2 (a), the terminal performs polling scanning on a plurality of reception beams of the terminal and a plurality of transmission beams of the access node 1 and the access node 2, as shown in fig. 2 (b), the terminal scans a beam pair stronger than the access node 2, as shown in fig. 2 (c), and the terminal performs communication through the access node 1 and the access node 2 based on a cooperative transmission scheme.
The inventors of the present disclosure have studied and found that in the process of switching from the single access node transmission mode to the cooperative transmission mode as shown in fig. 2, a terminal transmits a beam through a stronger adjacent access node of periodic beam scanning feedback, and a reception beam of a corresponding terminal may be different from a reception beam corresponding to a current access node transmission beam. After the cooperative transmission mode is converted, the receiving beam of the terminal is not changed, but the receiving beam corresponding to the transmitting beam of the current access node is maintained, in this case, the cooperative transmitting beam of the network side and the receiving beam corresponding to the transmitting beam of the current access node may not be the optimal beam pair, so that after the cooperative transmission mode is converted, the complexity of the communication system is increased, but the system performance is not obviously improved.
In view of this, in a first aspect, referring to fig. 3, an embodiment of the present disclosure provides a communication control method, including:
s11, sending periodic beam scanning signaling;
S12, determining a cooperative transmission beam according to beam scanning data from a terminal, wherein the cooperative transmission beam consists of a first transmission beam and at least one second transmission beam, the first transmission beam is a transmission beam of a current access node corresponding to the terminal, and the second transmission beam is a transmission beam of an adjacent access node corresponding to the terminal;
s13, signaling for measuring the cooperative transmission wave beams is sent to the terminal;
S14, determining a target beam pair for communication with the terminal according to measurement data of a cooperative beam pair from the terminal, wherein the cooperative beam pair corresponds to the cooperative transmitting beam and a cooperative receiving beam of the terminal.
In the embodiment of the disclosure, the network side equipment comprises a base station, access node equipment and the like. In some embodiments, steps S11 to S14 may be implemented on a device or chip such as a digital signal Processor (DSP, digital Signal Processor), a field programmable gate array (FPGA, field Programmable GATE ARRAY), an Application Specific Integrated Circuit (ASIC), or the like. The network side equipment initiates a periodic scanning process by sending a periodic beam scanning signaling, after receiving the periodic beam scanning signaling, the terminal performs polling scanning on a plurality of receiving beams and a plurality of transmitting beams of each access node, and transmits the measured beam scanning data to the network side equipment.
In the embodiment of the disclosure, the current access node is an access node to which the terminal is currently connected, and the first transmission beam is a transmission beam of the current access node corresponding to the terminal when the terminal communicates with the current access node; the second transmit beam is the transmit beam of the neighboring access node scanned by the terminal. That is, the terminal is located in the overlapping area of the first transmission beam and the second transmission beam. In the embodiment of the disclosure, the network side device determines the cooperative transmission beam, and manages the first transmission beam and the second transmission beam as a new beam, that is, logically, a transmission form after the first transmission beam and the second transmission beam are overlapped is used as a beam.
In the embodiment of the disclosure, when the network side sends the signaling for measuring the cooperative transmission beam to the terminal, the terminal can have no perception on the cooperative transmission beam, wherein the first transmission beam and the second transmission beam are formed.
In the embodiment of the disclosure, the terminal obtains measurement data of the cooperative beam pair by measuring the cooperative transmission beam. In the embodiment of the disclosure, the terminal performs measurement on the cooperative transmission beam, which means that the terminal performs polling measurement on a plurality of receiving beams and the cooperative transmission beam. In some embodiments, the terminal may use the multiple receive beams as cooperative receive beams, and then transmit measurement data of multiple beam pairs formed by the multiple receive beams and the cooperative transmit beams to the network side device. In some embodiments, the terminal selects an optimal reception beam corresponding to the cooperative transmission beam from the plurality of reception beams as the cooperative reception beam, and then transmits measurement data of a beam pair formed by the optimal reception beam and the cooperative transmission beam to the network-side device. The embodiments of the present disclosure are not particularly limited thereto. As shown in fig. 4 (a), the terminal performs polling measurement on a plurality of receiving beams and a cooperative transmitting beam composed of the transmitting beam of the access node 1 and the transmitting beam of the access node 2, and as shown in fig. 4 (b), the terminal determines an optimal receiving beam corresponding to the harmonic transmitting beam and feeds back to the network side device.
In the embodiment of the disclosure, the network side device determines a target beam pair for communication with the terminal, and may determine the cooperative beam pair as the target beam pair, and may also determine a beam pair corresponding to a transmission beam of the current access node as the target beam pair. The embodiments of the present disclosure are not particularly limited thereto.
In the embodiment of the disclosure, the network side equipment can determine a cooperative transmission beam formed by transmission beams of a plurality of access nodes according to beam scanning data obtained by periodically scanning the beams by the terminal, control the terminal to measure the cooperative transmission beam, and then determine a target beam pair for communication with the terminal according to measurement data obtained by measuring the cooperative transmission beam by the terminal; the network side manages the cooperative transmission beam as a new transmission beam, and controls the terminal to measure the cooperative transmission beam, so that cooperative transmission can be ensured based on an optimal beam pair in a cooperative transmission mode; in addition, the network side equipment can also make a decision between a single access node transmission mode and a cooperative transmission mode by selecting the target beam pair, so that the system performance is ensured, and the transmission efficiency of the system is improved.
In some embodiments, the network side device comprehensively considers the performance of the system in the single access node transmission mode, the cooperative transmission mode and the access node beam switching mode to make a decision.
Accordingly, in some embodiments, determining the cooperative transmit beam from beam sweep data from the terminal includes:
determining the second transmit beam from the beam sweep data, the beam sweep data including reference signal received Power (RSRP, reference Signal Receiving Power) values for a plurality of beam pairs;
and under the condition that a first reference signal receiving power value meets a first preset condition, the first transmitting beam and the second transmitting beam form the cooperative transmitting beam, wherein the first reference signal receiving power value is a reference signal receiving power value of a beam pair corresponding to the second transmitting beam.
The first preset condition is not particularly limited in the embodiment of the present disclosure. For example, when the first reference signal received power value is greater than or equal to a certain preset threshold, it indicates that the first reference signal received power value meets a first preset condition; or when the first reference signal receiving power value is greater than or equal to the reference signal receiving power value of the beam pair corresponding to the first transmitting beam, the first reference signal receiving power value meets a first preset condition.
In some embodiments, the communication control method further comprises:
and sending a beam switching signaling to the terminal under the condition that the first reference signal receiving power value meets a second preset condition so as to enable the terminal to be switched to the second transmitting beam.
The second preset condition is not particularly limited in the embodiment of the present disclosure. For example, when the first reference signal received power value is greater than or equal to a certain preset threshold, it indicates that the first reference signal received power value meets a second preset condition; or when the first reference signal receiving power value is greater than or equal to the reference signal receiving power value of the beam pair corresponding to the first transmitting beam, the first reference signal receiving power value meets the second preset condition.
In some embodiments, the communication control method further comprises:
and under the condition that the first reference signal receiving power value meets a third preset condition, communicating with the terminal based on the beam pair corresponding to the first transmitting beam.
The third preset condition is not particularly limited in the embodiment of the present disclosure. For example, when the first reference signal received power value is smaller than a certain preset threshold, it indicates that the first reference signal received power value meets a third preset condition; or when the first reference signal receiving power value is smaller than the reference signal receiving power value of the beam pair corresponding to the first transmitting beam, the first reference signal receiving power value meets a third preset condition.
In some embodiments, in order to comprehensively consider the performance of the system in the single access node transmission mode, the cooperative transmission mode and the access node beam switching mode to make a decision, a first preset condition, a second preset condition and a third preset condition are comprehensively set.
Accordingly, in some embodiments, in a case where a difference between the first reference signal reception power value and the second reference signal reception power value is smaller than a first threshold value and larger than a second threshold value, it indicates that the first reference signal reception power value satisfies a first preset condition;
If the difference between the first reference signal receiving power value and the second reference signal receiving power value is larger than the first threshold value, the first reference signal receiving power value meets a second preset condition;
If the difference between the first reference signal receiving power value and the second reference signal receiving power value is smaller than the second threshold value, the first reference signal receiving power value meets a third preset condition;
the second reference signal receiving power value is a reference signal receiving power value of a beam pair corresponding to the first transmitting beam.
In the embodiment of the disclosure, based on the first preset condition, the second preset condition and the third preset condition which are comprehensively set, when the first reference signal receiving power value is large enough, beam switching is performed; when the first reference signal receiving power value is small enough, the current single access node transmission is kept; when the first reference signal reception power value is not sufficiently large, cooperative transmission is performed.
The embodiments of the present disclosure are not particularly limited as to how the network side device determines the target beam pair.
In some embodiments, determining a target beam pair for communication with the terminal based on measurement data from the cooperating beam pair of the terminal comprises:
determining the cooperative beam pair as the target beam pair in the case that the measurement data meets a fourth preset condition;
and determining a beam pair corresponding to the first transmitting beam as the target beam pair under the condition that the measurement data meets a fifth preset condition.
The fourth preset condition is not particularly limited in the embodiment of the present disclosure. For example, when the measurement data is greater than a certain preset threshold, it indicates that the measurement satisfies a fourth preset condition.
The fifth preset condition is not particularly limited in the embodiment of the present disclosure. For example, when the measurement data is smaller than a certain preset threshold, it indicates that the measurement satisfies a fifth preset condition.
In some embodiments, the measurement data includes a third reference signal received power value;
In the case that the difference between the third reference signal receiving power value and the second reference signal receiving power value is greater than a third threshold value, the measured data meets a fourth preset condition;
in the case that the difference between the third reference signal reception power value and the second reference signal reception power value is smaller than a third threshold value, the measurement data satisfies a fifth preset condition;
the third reference signal receiving power value is the reference signal receiving power value of the cooperative beam pair, and the second reference signal receiving power value is the reference signal receiving power value of the beam pair corresponding to the first transmitting beam.
In a second aspect, referring to fig. 5, an embodiment of the present disclosure provides a communication control method, including:
s21, responding to the periodic beam scanning signaling, and performing beam scanning;
s22, transmitting beam scanning data to network side equipment;
S23, determining a cooperative beam pair in response to signaling from the network side equipment for measuring cooperative transmission beams, and obtaining measurement data of the cooperative beam pair, wherein the cooperative transmission beams consist of a first transmission beam and at least one second transmission beam, the first transmission beam is a transmission beam of a current access node corresponding to a terminal, the second transmission beam is a transmission beam of an adjacent access node corresponding to the terminal, and the cooperative beam corresponds to a cooperative reception beam of the cooperative transmission beam and the terminal;
S24, transmitting the measurement data to the network side equipment;
s25, communicating according to the target beam pair determined by the network side equipment.
In the embodiment of the disclosure, the terminal determining the cooperative beam pair refers to that the terminal performs polling measurement on a plurality of receiving beams and cooperative transmitting beams, determines the cooperative receiving beams, and forms the cooperative beam pair by the receiving beams and the cooperative transmitting beams. In some embodiments, the terminal may use the multiple receive beams as cooperative receive beams, and then transmit measurement data of multiple beam pairs formed by the multiple receive beams and the cooperative transmit beams to the network side device. In some embodiments, the terminal selects an optimal reception beam corresponding to the cooperative transmission beam from the plurality of reception beams as the cooperative reception beam, and then transmits measurement data of a beam pair formed by the optimal reception beam and the cooperative transmission beam to the network-side device. The embodiments of the present disclosure are not particularly limited thereto. As shown in fig. 4 (a), the terminal performs polling measurement on a plurality of receiving beams and a cooperative transmitting beam composed of the transmitting beam of the access node 1 and the transmitting beam of the access node 2, and as shown in fig. 4 (b), the terminal determines an optimal receiving beam corresponding to the harmonic transmitting beam and feeds back to the network side device.
In some embodiments, the communication according to the target beam pair determined by the network side device includes:
Communicating based on the cooperative beam pairs; or (b)
And communicating based on the beam pair corresponding to the first transmitting beam.
In a third aspect, referring to fig. 6, an embodiment of the present disclosure provides a network side device, including:
one or more processors 101;
A memory 102 having one or more programs stored thereon, which when executed by one or more processors, cause the one or more processors to implement the communication control method described in the first aspect of the embodiments of the present disclosure;
One or more I/O interfaces 103, coupled between the processor and the memory, are configured to enable information interaction of the processor with the memory.
Wherein the processor 101 is a device having data processing capabilities, including but not limited to a Central Processing Unit (CPU) or the like; memory 102 is a device with data storage capability including, but not limited to, random access memory (RAM, more specifically SDRAM, DDR, etc.), read-only memory (ROM), electrically charged erasable programmable read-only memory (EEPROM), FLASH memory (FLASH); an I/O interface (read/write interface) 103 is connected between the processor 101 and the memory 102 to enable information interaction between the processor 101 and the memory 102, including but not limited to a data Bus (Bus) or the like.
In some embodiments, processor 101, memory 102, and I/O interface 103 are connected to each other via bus 104, and thus to other components of the computing device.
In a fourth aspect, referring to fig. 7, an embodiment of the present disclosure provides a terminal, including:
one or more processors 201;
a memory 202 having one or more programs stored thereon, which when executed by one or more processors, cause the one or more processors to implement a communication control method according to the second aspect of the embodiments of the present disclosure;
One or more I/O interfaces 203, coupled between the processor and the memory, are configured to enable information interaction of the processor with the memory.
Wherein the processor 201 is a device having data processing capabilities, including but not limited to a Central Processing Unit (CPU) or the like; memory 202 is a device with data storage capability including, but not limited to, random access memory (RAM, more specifically SDRAM, DDR, etc.), read-only memory (ROM), electrically charged erasable programmable read-only memory (EEPROM), FLASH memory (FLASH); an I/O interface (read/write interface) 203 is connected between the processor 201 and the memory 202 to enable information interaction between the processor 201 and the memory 202, including but not limited to a data Bus (Bus) or the like.
In some embodiments, processor 201, memory 202, and I/O interface 203 are connected to each other and, in turn, to other components of the computing device via bus 204.
In a fourth aspect, embodiments of the present disclosure provide a computer-readable medium having stored thereon a computer program which, when executed by a processor, implements the communication control method according to the first aspect or the second aspect of the embodiments of the present disclosure.
In order to enable those skilled in the art to more clearly understand the technical solutions provided by the embodiments of the present disclosure, the following details of the technical solutions provided by the embodiments of the present disclosure are described by specific embodiments:
Example 1
The network side equipment initiates a periodic beam scanning process, the terminal performs polling measurement on beam pairs corresponding to the transmitting beams of the access node and the receiving beams of the terminal, and the terminal feeds back RSRP values corresponding to the beam pairs to the network side equipment. In the beam scanning process, the terminal feeds back that the RSRP value of the beam pair corresponding to the beam transmitted by the current access node is P1, and the RSRP value of the beam pair corresponding to the strongest beam of the adjacent access node is P2.
If the difference value of P2 minus P1 is larger than or equal to the set threshold value T1, the network side equipment instructs the terminal to perform beam switching, and the adjacent access node communicates with the terminal through the corresponding beam pair based on the single access node transmission mode.
If the difference of P2 minus P1 is smaller than the set threshold T1 and smaller than or equal to the set threshold T2, the network side equipment keeps the current access node communicating with the terminal through the corresponding beam pair based on the single access node transmission mode.
If the difference value of P2 minus P1 is smaller than the set threshold value T1 and larger than the set threshold value T2, the network side equipment manages the strongest beam adjacent to the access node and the cooperative transmission form of the current access node transmission beam as a new beam, the terminal performs polling measurement on a plurality of receiving beams and the cooperative transmission beam, selects the optimal receiving beam corresponding to the cooperative transmission beam to form a cooperative beam pair, and feeds back the RSRP value P3 of the cooperative beam pair.
If the difference of P3 minus P1 is smaller than the set threshold T3, the network side equipment keeps the current access node to communicate with the terminal through the corresponding beam pair based on the single access node transmission mode.
If the difference value of P3 minus P1 is larger than or equal to the set threshold value T3, the network side equipment decides, and the current access node and the adjacent access node communicate with the terminal through the cooperative beam pair based on the cooperative transmission mode.
Example two
The network side initiates a periodic beam scanning process, which comprises the polling measurement of the corresponding beam pairs of the transmitting beam of the access node and the corresponding receiving beam of the terminal, and the terminal feeds back the corresponding RSRP values of the beam pairs to the network side. In the beam scanning process, the terminal feeds back that the RSRP value of the corresponding beam pair of the beam transmitted by the current access node is p1=10db, and the RSRP value of the corresponding beam pair of the strongest beam of the adjacent access node is p2=20db.
And the P2-P1=10dB is larger than or equal to a set threshold T1=10dB, the network side instructs the terminal to perform beam switching, and the adjacent access node performs a single access node transmission mode with the terminal based on the corresponding beam pair.
Example III
The network side initiates a periodic beam scanning process, which comprises the polling measurement of the corresponding beam pairs of the transmitting beam of the access node and the corresponding receiving beam of the terminal, and the terminal feeds back the corresponding RSRP values of the beam pairs to the network side. In the beam scanning process, the terminal feeds back that the RSRP value of the corresponding beam pair of the beam transmitted by the current access node is p1=10db, and the RSRP value of the corresponding beam pair of the strongest beam of the adjacent access node is p2=14db.
And if the P2-P1=4dB is smaller than the set threshold T1=10dB and smaller than the set threshold T2=6dB, the network side keeps the current access node to perform a single access node transmission mode with the terminal based on the corresponding beam pair.
Example IV
The network side initiates a periodic beam scanning process, which comprises the polling measurement of the corresponding beam pairs of the transmitting beam of the access node and the corresponding receiving beam of the terminal, and the terminal feeds back the corresponding RSRP values of the beam pairs to the network side. In the beam scanning process, the terminal feeds back that the RSRP value of the corresponding beam pair of the beam transmitted by the current access node is p1=10db, and the RSRP value of the corresponding beam pair of the strongest beam of the adjacent access node is p2=16db.
The method comprises the steps that when P2-P1=6dB is smaller than a set threshold T1=10dB and is larger than or equal to the set threshold T2=6dB, the network side manages a cooperative emission form of the beam and a current access node emission beam as a new beam, a terminal performs receiving beam scanning measurement based on the cooperative beam, selects an optimal receiving beam corresponding to the cooperative beam, and feeds back an RSRP value P3=13dB of the beam pair;
And P3-P1=3dB is larger than or equal to a set threshold T3=3dB, and the network side makes a decision, and the current access node and the adjacent access node carry out cooperative access node transmission modes with the terminal based on corresponding beams of the cooperative beams.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, functional modules/units in the apparatus, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
Example embodiments have been disclosed herein, and although specific terms are employed, they are used and should be interpreted in a generic and descriptive sense only and not for purpose of limitation. In some instances, it will be apparent to one skilled in the art that features, characteristics, and/or elements described in connection with a particular embodiment may be used alone or in combination with other embodiments unless explicitly stated otherwise. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the disclosure as set forth in the appended claims.
Claims (12)
1. A communication control method, comprising:
transmitting periodic beam scanning signaling;
determining a cooperative transmission beam according to beam scanning data from a terminal, wherein the cooperative transmission beam consists of a first transmission beam and at least one second transmission beam, the first transmission beam is a transmission beam of a current access node corresponding to the terminal, and the second transmission beam is a transmission beam of an adjacent access node corresponding to the terminal;
Transmitting signaling for measuring the cooperative transmission beam to the terminal;
and determining a target beam pair for communicating with the terminal according to the measurement data of the cooperative beam pair from the terminal, wherein the cooperative beam corresponds to the cooperative transmitting beam and the cooperative receiving beam of the terminal.
2. The communication control method according to claim 1, wherein determining the cooperative transmission beam from beam scanning data from the terminal comprises:
Determining the second transmitting beam according to the beam scanning data, wherein the beam scanning data comprises reference signal receiving power values of a plurality of beam pairs;
and under the condition that a first reference signal receiving power value meets a first preset condition, the first transmitting beam and the second transmitting beam form the cooperative transmitting beam, wherein the first reference signal receiving power value is a reference signal receiving power value of a beam pair corresponding to the second transmitting beam.
3. The communication control method according to claim 2, wherein the communication control method further comprises:
and sending a beam switching signaling to the terminal under the condition that the first reference signal receiving power value meets a second preset condition so as to enable the terminal to be switched to the second transmitting beam.
4. The communication control method according to claim 2, wherein the communication control method further comprises:
and under the condition that the first reference signal receiving power value meets a third preset condition, communicating with the terminal based on the beam pair corresponding to the first transmitting beam.
5. The communication control method according to any one of claims 2 to 4, wherein in a case where a difference between the first reference signal reception power value and the second reference signal reception power value is smaller than a first threshold value and larger than a second threshold value, it is indicated that the first reference signal reception power value satisfies a first preset condition;
If the difference between the first reference signal receiving power value and the second reference signal receiving power value is larger than the first threshold value, the first reference signal receiving power value meets a second preset condition;
If the difference between the first reference signal receiving power value and the second reference signal receiving power value is smaller than the second threshold value, the first reference signal receiving power value meets a third preset condition;
the second reference signal receiving power value is a reference signal receiving power value of a beam pair corresponding to the first transmitting beam.
6. The communication control method according to any one of claims 1 to 4, wherein determining a target beam pair for communication with the terminal based on measurement data of a cooperative beam pair from the terminal, comprises:
determining the cooperative beam pair as the target beam pair in the case that the measurement data meets a fourth preset condition;
and determining a beam pair corresponding to the first transmitting beam as the target beam pair under the condition that the measurement data meets a fifth preset condition.
7. The communication control method according to claim 6, wherein the measurement data includes a third reference signal reception power value;
In the case that the difference between the third reference signal receiving power value and the second reference signal receiving power value is greater than a third threshold value, the measured data meets a fourth preset condition;
in the case that the difference between the third reference signal reception power value and the second reference signal reception power value is smaller than a third threshold value, the measurement data satisfies a fifth preset condition;
the third reference signal receiving power value is the reference signal receiving power value of the cooperative beam pair, and the second reference signal receiving power value is the reference signal receiving power value of the beam pair corresponding to the first transmitting beam.
8. A communication control method, comprising:
responsive to periodic beam scanning signaling, performing beam scanning;
Transmitting the beam scanning data to the network device;
Determining a cooperative beam pair in response to signaling of measuring a cooperative transmission beam from the network side device, so as to obtain measurement data of the cooperative beam pair, wherein the cooperative transmission beam is composed of a first transmission beam and at least one second transmission beam, the first transmission beam is a transmission beam of a current access node corresponding to a terminal, the second transmission beam is a transmission beam of an adjacent access node corresponding to the terminal, and the cooperative beam corresponds to a cooperative reception beam of the cooperative transmission beam and the terminal;
Transmitting the measurement data to the network side equipment;
and communicating according to the target beam pair determined by the network side equipment.
9. The communication control method according to claim 8, wherein the communication according to the target beam pair determined by the network side device includes:
Communicating based on the cooperative beam pairs; or (b)
And communicating based on the beam pair corresponding to the first transmitting beam.
10. A network side device, comprising:
One or more processors;
A memory having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement the communication control method according to any one of claims 1 to 7.
11. A terminal, comprising:
One or more processors;
A memory having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement the communication control method according to claim 8 or 9.
12. A computer-readable medium having stored thereon a computer program which, when executed by a processor, implements the communication control method according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310334866.5A CN118694398A (en) | 2023-03-24 | 2023-03-24 | Communication control method, network side device, terminal, and computer readable medium |
| PCT/CN2024/081385 WO2024198935A1 (en) | 2023-03-24 | 2024-03-13 | Communication control method, network side device, terminal, and computer-readable medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310334866.5A CN118694398A (en) | 2023-03-24 | 2023-03-24 | Communication control method, network side device, terminal, and computer readable medium |
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| KR101590198B1 (en) * | 2009-07-30 | 2016-02-15 | 엘지전자 주식회사 | Method of multi cell cooperation in wireless communication system |
| KR101980091B1 (en) * | 2012-10-18 | 2019-05-20 | 삼성전자주식회사 | Apparatus and method for cooperative communication in wireless communication system |
| CN107733477B (en) * | 2016-08-12 | 2020-11-17 | 华为技术有限公司 | Beam configuration and management method based on multi-point cooperation |
| CN106686631B (en) * | 2016-12-30 | 2020-05-19 | 宇龙计算机通信科技(深圳)有限公司 | Beam-based mobility management method and network element thereof |
| CN111642014B (en) * | 2020-04-17 | 2022-04-29 | 北京邮电大学 | Beam determination method, device, base station and electronic equipment |
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