CN113840298B - Networking architecture of base station, communication control method and equipment - Google Patents
Networking architecture of base station, communication control method and equipment Download PDFInfo
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- CN113840298B CN113840298B CN202111056739.0A CN202111056739A CN113840298B CN 113840298 B CN113840298 B CN 113840298B CN 202111056739 A CN202111056739 A CN 202111056739A CN 113840298 B CN113840298 B CN 113840298B
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- 238000004891 communication Methods 0.000 title claims abstract description 68
- 230000006855 networking Effects 0.000 title claims abstract description 29
- 238000012545 processing Methods 0.000 claims abstract description 47
- 238000005259 measurement Methods 0.000 claims description 30
- 238000004590 computer program Methods 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 20
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/085—Access point devices with remote components
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Abstract
The embodiment of the application provides a networking architecture of a base station, a communication control method and equipment. The set of network architectures includes: the system comprises a baseband processing unit and a plurality of remote radio units connected with the baseband processing unit, wherein the remote radio units are used for performing video communication with a terminal; the position deployment of the plurality of remote radio units meets specific conditions; the specific condition includes that direct sight paths exist between the same terminal and at least two remote radio units in the plurality of remote radio units, so that the same terminal can conduct cell switching between the at least two remote radio units. The application can avoid the problem that the terminal and the base station cannot communicate due to shielding, and reduce the influence of shielding on the communication between the base station and the terminal.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a networking architecture of a base station, a communication control method, and a device.
Background
Millimeter waves generally refer to electromagnetic waves having wavelengths of 1 millimeter to 10 millimeters and frequencies of 30GHz to 300 GHz. Compared with low frequency, the millimeter wave frequency band has abundant frequency spectrum resources, has great advantages in carrier bandwidth, can realize large-bandwidth transmission of 400MHz and 800MHz, and realizes ultra-high-speed data transmission. In order to realize high capacity, high speed and low time delay, the communication frequency band must extend towards the millimeter wave direction. Millimeter waves have the advantages of large bandwidth and high speed, but millimeter wave propagation is easy to be influenced by shielding, so that how to reduce the influence of shielding on communication between a base station and a terminal becomes a problem to be solved urgently.
Disclosure of Invention
The embodiment of the application provides a networking architecture of a base station, a communication control method and equipment, which are used for solving the problem of how to reduce the influence of shielding on communication between the base station and a terminal in the prior art.
In a first aspect, an embodiment of the present application provides a networking architecture of a base station, including: the system comprises a baseband processing unit and a plurality of remote radio units connected with the baseband processing unit, wherein the remote radio units are used for performing line-of-sight communication with a terminal;
the position deployment of the plurality of remote radio units meets a specific condition; the specific condition includes that a direct line-of-sight path exists between the same terminal and at least two remote radio units in the plurality of remote radio units, so that the same terminal can perform cell switching between the at least two remote radio units.
In a second aspect, an embodiment of the present application provides a communication control method, including:
receiving a measurement report sent by a first terminal;
when the first terminal meets the cell switching condition according to the measurement report, controlling the first terminal to switch from a currently accessed remote radio unit to a target remote radio unit, wherein the target remote radio unit is a remote radio unit with a direct line-of-sight path with the first terminal.
In a third aspect, an embodiment of the present application provides a communication control method, applied to a video transmission scene, including:
receiving a measurement report sent by a first terminal in the process of transmitting video data;
when the first terminal meets the cell switching condition according to the measurement report, the first terminal is controlled to switch from a currently accessed remote radio unit to a target remote radio unit, wherein the target remote radio unit is a remote radio unit with a direct line-of-sight path with the first terminal, so that video data are transmitted between the first terminal and the currently accessed remote radio unit, and the first terminal is switched to transmit video data between the first terminal and the target remote radio unit.
In a fourth aspect, an embodiment of the present application provides a communication control apparatus, including:
the receiving module is used for receiving the measurement report sent by the first terminal;
and the switching module is used for controlling the first terminal to switch from a currently accessed remote radio unit to a target remote radio unit when the first terminal meets the cell switching condition according to the measurement report, wherein the target remote radio unit is a remote radio unit with a direct sight path with the first terminal.
In a fifth aspect, an embodiment of the present application provides a communication control apparatus applied to a video transmission scene, including:
the receiving module is used for receiving a measurement report sent by the first terminal in the process of transmitting video data;
and the switching module is used for controlling the first terminal to switch from a currently accessed remote radio unit to a target remote radio unit when the first terminal meets the cell switching condition according to the measurement report, wherein the target remote radio unit is a remote radio unit which has a direct line-of-sight path with the first terminal, so that video data are transmitted between the first terminal and the currently accessed remote radio unit, and the switching is performed to transmit the video data between the first terminal and the target remote radio unit.
In a sixth aspect, an embodiment of the present application provides a baseband processing unit, including: a memory, a processor; the memory is for storing one or more computer instructions which, when executed by the processor, implement the method of any of the second aspects.
In a seventh aspect, an embodiment of the present application provides a baseband processing unit, including: a memory, a processor; the memory is for storing one or more computer instructions which, when executed by the processor, implement the method of any of the third aspects.
In an eighth aspect, an embodiment of the present application provides a computer program product comprising computer program instructions which, when executed by a processor, implement the method according to any of the second aspects.
In a ninth aspect, an embodiment of the application provides a computer program product comprising computer program instructions which, when executed by a processor, implement a method according to any of the third aspects.
In a tenth aspect, embodiments of the present application provide a computer readable storage medium having stored thereon a computer program which, when executed, implements a method according to any of the second aspects.
In an eleventh aspect, an embodiment of the present application provides a computer readable storage medium having stored thereon a computer program which, when executed, implements a method according to any of the third aspects.
In the method, from the networking perspective of the base station, the position arrangement of the plurality of remote radio units of the base station meets the condition that direct line-of-sight paths exist between the same terminal and at least two remote radio units, so that the same terminal can conduct cell switching between the at least two remote radio units, further, when radio wave signals which are linearly transmitted between the terminal and the remote radio units which are currently accessed by the terminal are blocked, the terminal can be switched to a target remote radio unit which is in direct line-of-sight paths for communication, and therefore the problem that communication between the terminal and the base station cannot be conducted due to blocking can be avoided, and the influence of blocking on communication between the base station and the terminal is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a networking architecture of a base station according to an embodiment of the present application;
fig. 2 is a schematic diagram illustrating switching between remote units according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a networking architecture of a base station according to another embodiment of the present application;
fig. 4 is a schematic structural diagram of a networking architecture of a base station according to another embodiment of the present application;
fig. 5 is a flow chart of a communication control method according to an embodiment of the application;
fig. 6 is a flow chart of a communication control method according to another embodiment of the present application;
fig. 7 is a flowchart of a data transmission method according to another embodiment of the present application;
fig. 8 is a schematic structural diagram of a communication control device according to an embodiment of the present application;
Fig. 9 is a schematic structural diagram of a baseband control unit according to an embodiment of the application;
fig. 10 is a schematic structural diagram of a communication control device according to another embodiment of the present application;
fig. 11 is a schematic structural diagram of a baseband control unit according to another embodiment of the present application;
fig. 12 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;
fig. 13 is a schematic structural diagram of a baseband control unit according to an embodiment of the application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two, but does not exclude the case of at least one.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or system comprising such elements.
In addition, the sequence of steps in the method embodiments described below is only an example and is not strictly limited.
In order to facilitate understanding of the technical solution provided by the embodiments of the present application by those skilled in the art, a technical environment in which the technical solution is implemented is first described below.
The propagation modes of the wireless communication system can be divided into two types, namely Line of Sight (LOS) and non-Line of Sight (NLOS), and communication of information transmission is performed by using radio waves in the Line of Sight propagation mode, namely Line of Sight communication. In the line-of-sight propagation mode, it is required that the radio wave signal propagates straight between the transmitting end and the receiving end without being blocked, because the signal strength is significantly reduced when the straight propagation of the radio wave signal between the transmitting end and the receiving end is blocked.
Millimeter waves have the advantages of large bandwidth and high speed, but also have the disadvantages of large propagation loss and weak diffraction and diffraction capacity due to the high frequency point, and are easy to be influenced by rainfall, cluster shielding, shielding and absorption of other shielding objects on electric waves in the millimeter wave propagation process. Millimeter waves are suitable for line-of-sight propagation modes in terms of their propagation characteristics.
However, in practical applications, even if the millimeter wave signal can propagate in a straight line between the base station and the terminal without being blocked when the base station is deployed, the change of the surrounding environment is not controllable, for example, when the indoor engineering workshop is networked, the millimeter wave signal between the terminal and the base station may be blocked due to personnel walking, rotation of a mechanical arm and the like around the terminal, and the communication link between the base station and the terminal is likely to be disconnected due to the narrow millimeter wave beam, so that communication between the terminal and the base station is impossible.
In the embodiment of the application, from the networking perspective of the base station, the position arrangement of the plurality of remote radio units of the base station meets the condition that direct line-of-sight paths exist between the same terminal and at least two remote radio units, so that the same terminal can perform cell switching between the at least two remote radio units, and further when radio wave signals which are linearly transmitted between the terminal and one remote radio unit which is currently accessed by the terminal are blocked, the terminal can be switched to communicate with the other remote radio unit which has the direct line-of-sight paths, thereby avoiding the problem that communication between the terminal and the base station cannot be performed due to blocking, and reducing the influence of blocking on communication between the base station and the terminal.
The direct sight path exists between the terminal and the remote radio unit, which means that radio wave signals can be transmitted in a straight line between the terminal and the remote radio unit without shielding. If the direct sight path between the terminal and the remote radio unit is blocked, the direct sight path is considered to be absent between the terminal and the remote radio unit, and the radio wave signal which is transmitted in a straight line between the terminal and the remote radio unit is blocked.
A Terminal (Terminal) may also be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (access Terminal), a Terminal device, a subscriber unit, a subscriber Station, a Mobile Station, a remote Terminal, a Mobile device, a User Terminal, a wireless communication device, a User agent, or a User Equipment, among others. The terminal may communicate with one or more core networks through a base station. The terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capability, a computer device or a car-mounted device, a wearable device, and a terminal device in a future 5G network, etc.
The base station, i.e., the public mobile communication base station, is a radio transceiver station that performs information transfer between a mobile communication switching center and a terminal in a fixed radio coverage area. The baseband part and the radio frequency part of the base station may be separated. The baseband part can be called a baseband processing unit, the radio frequency part can be called a remote radio unit, the baseband processing unit and the remote radio unit can be connected through an optical fiber, and one baseband processing unit can support a plurality of remote radio units. The baseband processing unit can send the baseband signal to the remote radio unit, the remote radio unit can convert the baseband signal into a radio frequency signal and send the radio frequency signal out through the antenna, the remote radio unit can also receive the radio frequency signal through the antenna, convert the received radio frequency signal into the baseband signal and send the baseband signal to the baseband processing unit.
It should be understood that the specific manner in which the base station divides the baseband processing Unit and the remote Radio Unit may be different in different communication systems, for example, in a 5th Generation (5G) communication system, the base station may be divided into a Central Unit (CU), a Distributed Unit (DU) and a Radio Unit (RU), where the Central unit+the Distributed Unit may be understood as the baseband processing Unit and the Radio Unit may be understood as the remote Radio Unit.
It should be noted that, the networking architecture of the base station provided by the embodiment of the present application may be applied to a networking scene between the base station and the terminal that needs to adopt a line-of-sight propagation mode, and the application is not limited to the type of data specifically transmitted in the networking scene that adopts the line-of-sight propagation mode, and may be, for example, video data, sensor data, control data, etc.
Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below and features of the embodiments may be combined with each other without conflict.
Fig. 1 is a schematic structural diagram of a networking architecture of a base station according to an embodiment of the present application, as shown in fig. 1, where the networking architecture may include: the base band processing unit 11 and a plurality of remote radio units 12 connected with the base band processing unit 11, the remote radio units 12 are used for performing line-of-sight communication with the terminal. It should be noted that the number of remote units in fig. 1 is only an example.
The deployment of the positions of the plurality of remote radio units 12 satisfies a specific condition, where the specific condition includes that a direct line-of-sight path exists between the same terminal and at least two remote radio units 12 in the plurality of remote radio units 12, so that the same terminal can perform cell handover between the at least two remote radio units 12. It should be appreciated that when there is a direct line-of-sight path between the same terminal and at least two remote units 12, the signal coverage areas of the at least two remote units 12 overlap and the same terminal is located within the overlapping coverage areas of the at least two remote units 12. It should be noted that, in fig. 1, a circle centered on the remote radio unit 12 represents a signal coverage of the remote radio unit 12.
In practice, the position of the terminal may be fixed, or the terminal may be movable along a fixed path. The position of the terminal can be considered when the remote radio units are deployed, so that the same terminal can have direct line-of-sight paths with at least two remote radio units in the plurality of remote radio units through the deployment of the remote radio units.
Taking the example that the same terminal and two remote units have direct line-of-sight paths, as shown in fig. 1, the terminal X may be within the signal coverage of the two remote units 12, and the direct line-of-sight paths may be between the terminal X and the two remote units 12. Further, as shown in fig. 2, assuming that the terminal X is currently connected to one remote unit 12 (denoted as remote unit 12A) of the two remote units, the terminal X may communicate through a communication link (denoted as communication link a) with the remote unit 12A. In the process that the terminal X communicates through the communication link a, as shown in fig. 2, if the direct line-of-sight path between the terminal X and the remote radio unit 12A is blocked by an obstacle, since there is still a direct line-of-sight path between the terminal X and the remote radio unit (denoted as remote radio unit 12B), the terminal X can also establish a communication link (denoted as communication link B) with the remote radio unit 12B and communicate with the communication link B, so that the probability of occurrence of non-communication between the terminal and the base station due to blocking can be reduced, and the influence of blocking on communication between the base station and the terminal is reduced.
Optionally, the specific conditions may further include: the included angle between two adjacent remote units and the same terminal in the at least two remote units 12 is greater than or equal to an angle threshold. The angle threshold value can be determined experimentally or empirically, for example.
It can be understood that the smaller the included angle between two adjacent remote radio units and the same terminal is, the greater the probability that radio wave signals between the same terminal and two adjacent remote radio units are simultaneously shielded; the larger the included angle between two adjacent remote units and the same terminal is, the smaller the probability that radio wave signals between the same terminal and two adjacent remote units are simultaneously shielded. Therefore, the included angle between the two adjacent remote radio units and the same terminal is larger than or equal to the angle threshold, so that the probability of shielding radio wave signals between the same terminal and the two adjacent remote radio units at the same time due to the fact that the included angle between the two adjacent remote radio units and the same terminal is too small can be reduced.
Illustratively, the baseband processing unit 11 may include a CU and a DU, and the remote radio unit 12 is specifically an RU. Based on this, in one embodiment, the networking architecture of the base station may, for example, as shown in fig. 3, the baseband processing unit 11 may include one CU and one DU, and the remote radio unit 12 is specifically a plurality of RUs connected to the DU, that is RU1, RU2, RU3, and RU4, respectively. It should be noted that the number of terminals, the number of RUs, the number of DUs, and the direct line-of-sight path between one terminal and two RUs in fig. 3 are only examples.
In another embodiment, as shown in fig. 4, the base station may have a networking structure, where the baseband processing unit 11 may include one CU and a plurality of DUs, that is, DU1, DU2, DU3 and DU4, respectively, and the remote radio unit 12 is specifically a plurality of RUs, that is, RU1, RU2, RU3 and RU4, respectively, one RU corresponds to one DU, and the DUs are correspondingly connected to the RUs. It should be noted that the number of terminals, the number of RUs, and the number of DUs in fig. 4 are merely examples, and one DU is connected to one RU, and a direct line-of-sight path is provided between one terminal and two RUs.
In the networking architecture shown in fig. 3 and fig. 4, a direct line-of-sight path is formed between the terminal 1 and RU2, and the RU currently accessed by the terminal 1 is RU1 and can be switched from RU1 to RU2; the terminal 2 and RU3 are provided with direct line-of-sight paths, the RU currently accessed by the terminal 2 is RU2, and RU3 can be switched by RU2; the terminal 3 and RU4 both have direct line-of-sight paths, and RU3 is the RU3 and RU4 can be switched from RU3 to RU4. It should be noted that, in fig. 3 and fig. 4, the solid line connection between the RU and the terminal indicates the RU to which the terminal is currently connected, and the dotted line connection between the RU and the terminal indicates the RU to which the terminal can be switched.
In the embodiment of the present application, the electromagnetic wave used for communication between the remote radio unit 12 and the terminal may be any type of electromagnetic wave that needs to be propagated by using a line-of-sight propagation method. In one embodiment, the electromagnetic waves may include millimeter waves, i.e., remote radio unit 12 may be specifically configured for line-of-sight communication with the terminal via millimeter waves.
In the embodiment of the application, as the direct sight path is arranged between the same terminal and at least two remote radio units, the switching of the remote radio units accessed by the terminal can be realized. Based on this, in one embodiment, the baseband processing unit 11 may be configured to: when the first terminal meets the cell switching condition, the first terminal is controlled to be switched from a currently accessed remote radio unit to a target remote radio unit, wherein the target remote radio unit is a remote radio unit with a direct line-of-sight path with the first terminal.
The first terminal may be any terminal within the coverage area of the base station. Taking the example that the first terminal satisfying the cell handover condition is the terminal X in fig. 2, the currently accessed remote radio unit may be the remote radio unit 12A, and the target remote radio unit may be the remote radio unit 12B. Taking the example that the first terminal satisfying the cell handover condition is the terminal 1 in fig. 3 and fig. 4, the currently accessed remote radio unit may include RU1, and the target remote radio unit may include RU2.
The cell handover condition is related to the cell quality of the cell in which the first terminal is currently camping. When the radio wave signal which is linearly transmitted between the first terminal and the radio remote unit which is accessed at present is blocked, the signal intensity of the radio wave between the first terminal and the radio remote unit which is accessed at present is obviously reduced, the baseband processing unit considers that the cell quality of the cell where the base station resides is poor, and the first terminal can be further determined to meet the cell switching condition.
It should be understood that the cell in the embodiment of the present application refers to a logical cell. The relationship of the remote radio unit 12 to the cell may include: the remote units may be in one-to-one correspondence with cells, or a plurality of remote units may be in one cell. For the former, the cell switching may specifically be an inter-cell switching, and the cell switching condition may specifically be an inter-cell switching condition; in the latter case, the cell handover may include intra-cell handover, and the cell handover condition may include inter-cell handover condition in particular.
It should be noted that, regarding the cell handover conditions, reference may be made to the specific description in the related art, and the details are not repeated here. Hereinafter, a specific description will be given mainly taking an example in which a cell handover includes an inter-cell handover.
By controlling the first terminal to switch from the current residence cell to the target cell corresponding to the target radio frequency unit, the first terminal can be controlled to switch from the current accessed radio frequency remote unit to the target radio frequency remote unit, so that when radio wave signals which are linearly transmitted between the first terminal and the radio frequency remote unit which is accessed at present are blocked, the first terminal can be switched to the target radio frequency remote unit which has a direct sight path with the first terminal. It should be noted that, for the cell handover procedure, reference may be made to the specific description in the related art, and the details are not repeated here.
In one embodiment, when determining that the first terminal meets the cell handover condition, the baseband processing unit 11 may directly control the first terminal to handover from the currently accessed remote radio unit to the target remote radio unit.
In another embodiment, in the case that multiple remote radio units correspond to the same cell, before the control terminal is switched from the currently accessed remote radio unit to the target remote radio unit, the baseband processing unit 11 may also consider the load condition of the target remote radio unit first, so as to avoid the problem caused by directly switching the first terminal to the target remote radio unit when the load of the target remote radio unit is heavy, for example, the problem that the speed of the first terminal is low after switching.
Based on this, the baseband processing unit 11 controls the first terminal to switch from the currently accessed remote radio unit to the target remote radio unit, and specifically includes: judging whether the idle resources of the target remote radio unit can meet the rate requirement of the first terminal; if not, controlling at least part of terminals accessed to the target remote radio unit, and switching to other remote radio units; and controlling the first terminal to switch from the currently accessed remote radio unit to the target remote radio unit. By controlling at least part of terminals which are accessed to the target remote radio unit and switching to other remote radio units, the method can be realized that enough resources are reserved on the target remote radio unit for the first terminal.
Wherein the free resources may include free transmission resources and free computing resources. The rate supported under the condition that the direct line-of-sight path is not blocked can be calculated according to the idle resources, if the calculated rate is greater than the rate required by the first terminal, the idle resources of the target remote radio unit can be determined to meet the rate requirement of the first terminal, otherwise, the idle resources of the target remote radio unit can be determined to not meet the rate requirement of the first terminal. For example, when the direct line-of-sight path between the terminal and the currently accessed radio frequency pull unit is not blocked, the rate of the terminal can be used as the rate required by the rate requirement of the first terminal.
At least part of terminals of the accessed target remote radio units can be any one or more terminals of the accessed target remote radio units, or can be one or more terminals of the accessed target remote radio units, which are positioned at the coverage area edge of the target remote radio units. It should be understood that if the idle resources of the target remote radio unit can meet the speed requirement of the first terminal, the first terminal may be directly controlled to switch from the currently accessed remote radio unit to the target remote radio unit.
For example 1, referring to fig. 3 and fig. 4, assuming that the first terminal is terminal 1, the currently accessed remote radio unit is RU1, and the target remote radio unit is RU2, it may be determined whether the idle resources of RU2 meet the rate requirement of terminal 1, if not, at least a portion of terminals (for example, terminal 2) that have accessed RU2 may be controlled to switch to RU3, and then terminal 1 may be controlled to switch from RU1 to RU2.
In example 1, in order to avoid the problem caused by directly switching the terminal 2 to RU3 when RU3 is heavily loaded, similarly, before controlling the terminal 2 to switch to RU3, it may be determined whether the idle resources of RU3 meet the rate requirement of the terminal 2, if yes, the terminal 2 having accessed RU2 may be controlled to switch to RU3, otherwise, at least part of the terminals (for example, terminal 3) having accessed RU3 may be controlled to switch to RU4, and then the terminal 2 may be controlled to switch from RU2 to RU3.
Optionally, in order to ensure that the terminal can be switched to a remote radio unit meeting its rate requirements, the baseband processing unit 11 may be further configured to: and periodically acquiring the respective resource occupancy rates of the plurality of remote radio units, and under the condition that the terminal rate requirement is met, switching the terminal to a cell so that the resource occupancy rate of at least one remote radio unit of the at least two remote radio units 12 is lower than an occupancy rate threshold. And reserving sufficient resources for the terminal which is possibly switched in by the fact that the resource occupancy rate is lower than the occupancy rate threshold, wherein the occupancy rate threshold can be set and adjusted according to actual conditions.
Referring to fig. 3 and 4, a cu may periodically obtain the respective resource occupancy rates of RU1 to RU4, and, under the condition that the terminal rate requirement is satisfied, perform cell handover on the terminal, so that the resource occupancy rate of at least one of RU1 and RU2 is lower than an occupancy rate threshold, the resource occupancy rate of at least one of RU2 and RU3 is lower than an occupancy rate threshold, and the resource occupancy rate of at least one of RU3 and RU4 is lower than an occupancy rate threshold.
For example, the CU may make the resource occupancy of RU1 and RU3 lower than the occupancy threshold by performing a cell handover to the terminal. On this basis, assuming that radio wave signals propagating in a straight line between the terminal 1 and the RU1 are blocked, and idle resources of the RU2 do not meet the rate requirement of the terminal 1, since the resource occupancy rate of the RU3 is lower than the occupancy rate threshold, at least part of UEs having accessed to the RU2 may be switched to the RU3 first, and then the terminal 1 may be switched to the RU2.
Optionally, in order to facilitate the baseband processing unit to implement that the resource occupancy rate of at least one of the at least two remote radio units 12 having a direct line-of-sight path with the same terminal is lower than the occupancy rate threshold, the resource redundancy of the plurality of remote radio units 12 may be greater than or equal to the redundancy threshold. The redundancy threshold may be determined empirically or experimentally, for example.
According to the networking architecture of the base station, from the networking angle of the base station, the positions of the plurality of remote radio units of the base station are deployed to meet the condition that direct line-of-sight paths exist between the same terminal and at least two remote radio units, so that the same terminal can conduct cell switching between the at least two remote radio units, and further when radio wave signals which are linearly transmitted between the terminal and one remote radio unit which is currently accessed by the terminal are shielded, the terminal can be switched to communicate with the other remote radio unit which is provided with the direct line-of-sight paths, and therefore the problem that communication between the terminal and the base station cannot be conducted due to shielding can be avoided, and the influence of shielding on communication between the base station and the terminal is reduced.
Fig. 5 is a flow chart of a communication control method according to an embodiment of the present application, where the communication control method may be applied to the networking architecture of the base station described in the foregoing embodiment, and as shown in fig. 5, the method of this embodiment may include:
step 51, receiving a measurement report sent by a first terminal;
and step 52, when the first terminal meets the cell switching condition according to the measurement report, controlling the first terminal to switch from the currently accessed remote radio unit to a target remote radio unit, wherein the target remote radio unit is a remote radio unit with a sight path with the first terminal.
It should be noted that, for the measurement report, reference may be made to the specific description in the related art, and the detailed description is omitted here.
In one embodiment, under the condition that the remote radio units are in one-to-one correspondence with the cells, the controlling the first terminal to switch from the currently accessed remote radio unit to the target remote radio unit may specifically include: judging whether the idle resources of the target remote radio unit can meet the rate requirement of the first terminal; if not, controlling at least part of terminals accessed to the target remote radio unit to switch to other remote radio units; and controlling the first terminal to switch from the currently accessed remote radio unit to the target remote radio unit. Therefore, before the first terminal is controlled to be switched from the currently accessed remote radio unit to the target remote radio unit, the load condition of the target remote radio unit can be considered, and the problem caused by directly switching the first terminal to the target remote radio unit under the condition that the load of the target remote radio unit is heavy, such as the problem that the speed of the first terminal is lower after switching, is avoided.
In one embodiment, the method provided by the embodiment of the application can further include: and periodically acquiring the respective resource occupancy rate of the plurality of remote radio units, and switching cells on the terminal under the condition of meeting the terminal rate requirement, so that the resource occupancy rate of at least one of any at least two remote radio units which have direct line-of-sight paths with the same terminal when the remote radio units are deployed at positions is lower than an occupancy rate threshold. Thereby, the terminal can be ensured to be switched to the remote radio unit meeting the speed requirement.
According to the communication control method, when the measurement report sent by the first terminal is received and the first terminal meets the cell switching condition according to the measurement report, the first terminal is controlled to switch from the currently accessed remote radio unit to the target remote radio unit, wherein the target remote radio unit is the remote radio unit with the first terminal, which has a sight path, and when the communication link between the first terminal and the currently accessed remote radio unit is poor due to shielding, the first terminal is controlled to switch from the currently accessed remote radio unit to the target remote radio unit with the sight path, so that the problem that communication between the terminal and the base station cannot be realized due to shielding is avoided.
Fig. 6 is a flow chart of a communication control method according to another embodiment of the present application, where the communication control method may be applied to a video transmission scenario+the networking architecture of the base station described in the foregoing embodiment, and as shown in fig. 6, the method of this embodiment may include:
step 61, receiving a measurement report sent by a first terminal in the process of transmitting video data;
and step 62, when the first terminal meets the cell switching condition according to the measurement report, controlling the first terminal to switch from a currently accessed remote radio unit to a target remote radio unit, wherein the target remote radio unit is a remote radio unit with a direct line-of-sight path with the first terminal, so that video data are transmitted between the first terminal and the currently accessed remote radio unit, and the switching is performed to transmit video data between the first terminal and the target remote radio unit.
The method provided by the embodiment of the application can be applied to any type of scene needing to transmit video data. Taking a video transmission scene as an example of a video conference scene, the video data transmitted by the first terminal may be video conference data. Taking the video transmission scene as a video live broadcast scene as an example, the video data transmitted by the first terminal can be the video live broadcast data. Taking the video transmission scene as an automatic driving scene as an example, the video data transmitted by the first terminal may be driving video data.
It should be noted that, for the measurement report, reference may be made to the specific description in the related art, and the detailed description is omitted here.
In one embodiment, under the condition that the remote radio units are in one-to-one correspondence with the cells, the controlling the first terminal to switch from the currently accessed remote radio unit to the target remote radio unit may specifically include: judging whether the idle resources of the target remote radio unit can meet the rate requirement of the first terminal; if not, controlling at least part of terminals accessed to the target remote radio unit to switch to other remote radio units; and controlling the first terminal to switch from the currently accessed remote radio unit to the target remote radio unit. Therefore, before the first terminal is controlled to be switched from the currently accessed remote radio unit to the target remote radio unit, the load condition of the target remote radio unit can be considered, and the problem caused by directly switching the first terminal to the target remote radio unit under the condition that the load of the target remote radio unit is heavy, such as the problem that the speed of the first terminal is lower after switching, is avoided.
In one embodiment, the method provided by the embodiment of the application can further include: and periodically acquiring the respective resource occupancy rate of the plurality of remote radio units, and switching cells on the terminal under the condition of meeting the terminal rate requirement, so that the resource occupancy rate of at least one of any at least two remote radio units which have direct line-of-sight paths with the same terminal when the remote radio units are deployed at positions is lower than an occupancy rate threshold. Thereby, the terminal can be ensured to be switched to the remote radio unit meeting the speed requirement.
According to the communication control method, the measurement report sent by the first terminal in the video data transmission process is received, when the first terminal meets the cell switching condition according to the measurement report, the first terminal is controlled to switch from the currently accessed remote radio unit to the target remote radio unit, the target remote radio unit is the remote radio unit with the first terminal, which has a sight path, so that video data is transmitted between the first terminal and the currently accessed remote radio unit, the video data is transmitted between the first terminal and the target remote radio unit, when the rate of video data transmission between the first terminal and the currently accessed remote radio unit is reduced due to shielding, the first terminal is controlled to switch from the currently accessed remote radio unit to the target remote radio unit with a direct sight path, and the problem that video data cannot be transmitted between the terminal and the base station due to shielding is avoided.
Fig. 7 is a flow chart of a data transmission method according to an embodiment of the present application, where the data transmission method may be applied to an autopilot scenario+the networking architecture of the base station described in the foregoing embodiment, and as shown in fig. 7, the method of this embodiment may include:
step 71, determining that the autopilot terminal is switched from a first remote radio unit to a second remote radio unit, wherein the second remote radio unit is a remote radio unit having a direct line-of-sight path with the autopilot terminal;
and step 72, switching from transmitting data between the first remote radio unit and the automatic driving terminal to transmitting data between the second remote radio unit and the automatic driving terminal.
In an embodiment, the automatic driving terminal may be determined to be switched from the first remote radio unit to the second remote radio unit through the signaling interacted in the cell switching process, and the specific implementation manner may refer to the specific description in the related art, which is not repeated herein.
It should be understood that, before step 72 is performed, data is transmitted between the first remote radio unit and the autopilot terminal, that is, the baseband processing unit may transmit the baseband signal to be sent to the autopilot terminal to the first remote radio unit, where the first remote radio unit may convert the baseband signal into a radio signal and transmit the radio signal through the antenna, and the baseband processing unit may further receive the baseband signal from the autopilot terminal sent by the first remote radio unit.
After step 72 is performed, data is transmitted between the second remote radio unit and the autopilot terminal, that is, the baseband processing unit may transmit the baseband signal to be sent to the autopilot terminal to the second remote radio unit, where the second remote radio unit may convert the baseband signal into a radio signal and transmit the radio signal through the antenna, and the baseband processing unit may further receive the baseband signal from the autopilot terminal sent by the second remote radio unit.
The data received from the autopilot terminal through the first remote radio unit or the second remote radio unit may include radar data, video data, positioning data, and the like, and the data sent to the autopilot terminal through the first remote radio unit or the second remote radio unit may be control instruction data, and the like.
It should be noted that, regarding the specific manner of controlling the autopilot terminal to switch from the currently accessed remote radio unit to the target remote radio unit, reference may be made to the related description in the foregoing embodiment, and the description is omitted herein.
According to the data transmission method provided by the embodiment of the application, the automatic driving terminal is determined to be switched from the first remote radio unit to the second remote radio unit, and data is transmitted between the first remote radio unit and the automatic driving terminal and between the second remote radio unit and the automatic driving terminal, so that the problem that video data cannot be transmitted between the terminal and the base station in the automatic driving scene due to shielding is avoided when the rate of video data transmission between the automatic driving terminal and the first remote radio unit is reduced due to shielding under the automatic driving scene.
Fig. 8 is a schematic structural diagram of a communication control device according to an embodiment of the present application; referring to fig. 8, the present embodiment provides a communication control apparatus, which may perform the method of the embodiment shown in fig. 5, and specifically, the apparatus may include:
a receiving module 81, configured to receive a measurement report sent by a first terminal;
and the switching module 82 is configured to control the first terminal to switch from a currently accessed remote radio unit to a target remote radio unit when it is determined that the first terminal meets a cell switching condition according to the measurement report, where the target remote radio unit is a remote radio unit having a direct line-of-sight path with the first terminal.
Optionally, in the case that the remote radio units are in one-to-one correspondence with the cells, the switching module 82 is configured to control the first terminal to switch from the currently accessed remote radio unit to the target remote radio unit, and specifically may include: judging whether the idle resources of the target remote radio unit can meet the rate requirement of the first terminal; if not, controlling at least part of terminals accessed to the target remote radio unit to switch to other remote radio units; and controlling the first terminal to switch from the currently accessed remote radio unit to the target remote radio unit.
Optionally, the switching module 82 is further configured to: and periodically acquiring the respective resource occupancy rate of the plurality of remote radio units, and switching cells on the terminal under the condition of meeting the terminal rate requirement, so that the resource occupancy rate of at least one of any at least two remote radio units which have direct line-of-sight paths with the same terminal when the remote radio units are deployed at positions is lower than an occupancy rate threshold. Thereby, the terminal can be ensured to be switched to the remote radio unit meeting the speed requirement.
The apparatus shown in fig. 8 may perform the method of the embodiment shown in fig. 5, and reference is made to the relevant description of the embodiment shown in fig. 5 for parts of this embodiment not described in detail. The implementation process and the technical effect of this technical solution are described in the embodiment shown in fig. 5, and are not described herein.
In one possible implementation, the structure of the apparatus shown in fig. 8 may be implemented as a baseband processing unit. As shown in fig. 9, the baseband processing unit may include: a processor 91 and a memory 92. Wherein the memory 92 is for storing a program supporting the baseband processing unit to perform the method provided in the embodiment shown in fig. 5 described above, the processor 91 is configured for executing the program stored in the memory 92.
The program comprises one or more computer instructions, wherein the one or more computer instructions, when executed by the processor 91, are capable of performing the steps of:
receiving a measurement report sent by a first terminal;
when the first terminal meets the cell switching condition according to the measurement report, controlling the first terminal to switch from a currently accessed remote radio unit to a target remote radio unit, wherein the target remote radio unit is a remote radio unit with a direct line-of-sight path with the first terminal.
Optionally, the processor 91 is further configured to perform all or part of the steps in the embodiment shown in fig. 5.
The baseband processing unit may further include a communication interface 93 in the structure for communicating with other devices or communication networks.
Fig. 10 is a schematic structural diagram of a communication control device according to another embodiment of the present application; referring to fig. 10, the present embodiment provides a communication control apparatus, which may perform the method of the embodiment shown in fig. 6, and specifically, the apparatus may include:
a receiving module 101, configured to receive a measurement report sent by a first terminal during a process of transmitting video data;
And the switching module 102 is configured to control the first terminal to switch from a currently accessed remote radio unit to a target remote radio unit when the first terminal meets a cell switching condition according to the measurement report, where the target remote radio unit is a remote radio unit having a direct line-of-sight path with the first terminal, so that video data is transmitted between the first terminal and the currently accessed remote radio unit, and the switching is performed to transmit video data between the first terminal and the target remote radio unit.
Optionally, in the case that the remote radio units are in one-to-one correspondence with the cells, the switching module 102 is configured to control the first terminal to switch from the currently accessed remote radio unit to the target remote radio unit, and specifically may include: judging whether the idle resources of the target remote radio unit can meet the rate requirement of the first terminal; if not, controlling at least part of terminals accessed to the target remote radio unit to switch to other remote radio units; and controlling the first terminal to switch from the currently accessed remote radio unit to the target remote radio unit.
Optionally, the switching module 102 is further configured to: and periodically acquiring the respective resource occupancy rate of the plurality of remote radio units, and switching cells on the terminal under the condition of meeting the terminal rate requirement, so that the resource occupancy rate of at least one of any at least two remote radio units which have direct line-of-sight paths with the same terminal when the remote radio units are deployed at positions is lower than an occupancy rate threshold. Thereby, the terminal can be ensured to be switched to the remote radio unit meeting the speed requirement.
The apparatus shown in fig. 10 may perform the method of the embodiment shown in fig. 6, and reference is made to the relevant description of the embodiment shown in fig. 6 for parts of this embodiment not described in detail. The implementation process and the technical effect of this technical solution are described in the embodiment shown in fig. 6, and are not described herein.
In one possible implementation, the structure of the apparatus shown in fig. 10 may be implemented as a baseband processing unit. As shown in fig. 11, the baseband processing unit may include: a processor 111 and a memory 112. Wherein the memory 112 is for storing a program supporting the baseband processing unit to perform the method provided in the embodiment shown in fig. 6 described above, the processor 111 is configured for executing the program stored in the memory 112.
The program comprises one or more computer instructions, wherein the one or more computer instructions, when executed by the processor 111, are capable of performing the steps of:
receiving a measurement report sent by a first terminal in the process of transmitting video data;
when the first terminal meets the cell switching condition according to the measurement report, the first terminal is controlled to switch from a currently accessed remote radio unit to a target remote radio unit, wherein the target remote radio unit is a remote radio unit with a direct line-of-sight path with the first terminal, so that video data are transmitted between the first terminal and the currently accessed remote radio unit, and the first terminal is switched to transmit video data between the first terminal and the target remote radio unit.
Optionally, the processor 111 is further configured to perform all or part of the steps in the embodiment shown in fig. 6.
The baseband processing unit may further include a communication interface 113 in a structure for communicating with other devices or a communication network.
Fig. 12 is a schematic structural diagram of a data transmission device according to an embodiment of the present application; referring to fig. 12, the present embodiment provides a data transmission apparatus, which may perform the method of the embodiment shown in fig. 7, and specifically, the apparatus may include:
The determining module 121 is configured to determine that the autopilot terminal is switched from a first remote radio unit to a second remote radio unit, where the second remote radio unit is a remote radio unit having a direct line-of-sight path with the autopilot terminal;
and the switching module 122 is configured to switch from transmitting data between the first remote radio unit and the autopilot terminal to transmitting data between the second remote radio unit and the autopilot terminal.
The apparatus of fig. 12 may perform the method of the embodiment of fig. 7, and reference is made to the relevant description of the embodiment of fig. 7 for parts of this embodiment not described in detail. The implementation process and the technical effect of this technical solution are described in the embodiment shown in fig. 7, and are not described herein.
In one possible implementation, the structure of the apparatus shown in fig. 12 may be implemented as a baseband processing unit. As shown in fig. 13, the baseband processing unit may include: a processor 131 and a memory 132. Wherein the memory 132 is for storing a program supporting the baseband processing unit to perform the method provided in the embodiment shown in fig. 7 described above, the processor 131 is configured to execute the program stored in the memory 132.
The program comprises one or more computer instructions, wherein the one or more computer instructions, when executed by the processor 131, are capable of performing the steps of:
determining that the automatic driving terminal is switched from a first remote radio unit to a second remote radio unit, wherein the second remote radio unit is a remote radio unit which has a direct sight path with the automatic driving terminal;
and switching from transmitting data between the first remote radio unit and the automatic driving terminal to transmitting data between the second remote radio unit and the automatic driving terminal.
Optionally, the processor 131 is further configured to perform all or part of the steps in the embodiment shown in fig. 7.
The baseband processing unit may further include a communication interface 133 in a structure for communicating with other devices or a communication network.
In addition, embodiments of the present application also provide a computer program product comprising computer program instructions which, when executed by a processor, implement a method as provided by the embodiment shown in fig. 5.
Embodiments of the present application also provide a computer program product comprising computer program instructions which, when executed by a processor, implement a method as provided by the embodiment shown in fig. 6.
Embodiments of the present application also provide a computer program product comprising computer program instructions which, when executed by a processor, implement a method as provided by the embodiment shown in fig. 7.
The embodiment of the present application also provides a computer readable storage medium, which is characterized in that a computer program is stored thereon, and when the computer program is executed, the method provided by the embodiment shown in fig. 5 is implemented.
The embodiment of the present application also provides a computer readable storage medium, which is characterized in that a computer program is stored thereon, and when the computer program is executed, the method provided by the embodiment shown in fig. 6 is implemented.
The embodiment of the present application also provides a computer readable storage medium, which is characterized in that a computer program is stored thereon, and when the computer program is executed, the method provided by the embodiment shown in fig. 7 is implemented.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present application without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by adding necessary general purpose hardware platforms, or may be implemented by a combination of hardware and software. Based on such understanding, the foregoing aspects, in essence and portions contributing to the art, may be embodied in the form of a computer program product, which may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, linked lists, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (10)
1. A networking architecture for a base station, comprising: the system comprises a baseband processing unit and a plurality of remote radio units connected with the baseband processing unit, wherein the remote radio units are used for performing line-of-sight communication with a terminal;
the position deployment of the plurality of remote radio units meets a specific condition; the specific condition includes that a direct line-of-sight path exists between the same terminal and at least two remote radio units in the plurality of remote radio units, so that the same terminal can perform cell switching between the at least two remote radio units;
the baseband processing unit is used for: when determining that a first terminal meets a cell switching condition, judging whether idle resources of the target remote radio unit can meet the rate requirement of the first terminal, wherein the target remote radio unit is a remote radio unit with a direct line-of-sight path with the first terminal; if not, controlling at least part of terminals accessed to the target remote radio unit to switch to other remote radio units; and controlling the first terminal to switch from the currently accessed remote radio unit to the target remote radio unit.
2. The networking architecture of claim 1, wherein the specific conditions further comprise: and the included angle between two adjacent remote radio units in the at least two remote radio units and the same terminal is larger than or equal to an angle threshold value.
3. The networking architecture of claim 1, wherein the baseband processing unit is further configured to:
and periodically acquiring the respective resource occupancy rates of the plurality of remote radio units, and switching cells on the terminal under the condition of meeting the terminal rate requirement, so that the resource occupancy rate of at least one remote radio unit in the at least two remote radio units is lower than an occupancy rate threshold.
4. A networking architecture according to any of claims 1-3, characterized in that the baseband processing unit comprises a central unit and a distributed unit; the number of the distributed units is one, a plurality of the remote radio units are connected with the distributed units, or the number of the distributed units is a plurality of the remote radio units, one remote radio unit corresponds to one distributed unit, and the remote radio units are correspondingly connected with the distributed units.
5. A networking architecture according to any of claims 1-3, wherein the remote radio unit is configured to communicate with the terminal via millimeter waves over a line of sight.
6. A communication control method, characterized by comprising:
receiving a measurement report sent by a first terminal;
when the first terminal meets the cell switching condition according to the measurement report, judging whether the idle resource of the target remote radio unit can meet the rate requirement of the first terminal, wherein the target remote radio unit is a remote radio unit with a direct line-of-sight path with the first terminal;
if not, controlling at least part of terminals accessed to the target remote radio unit to switch to other remote radio units;
and controlling the first terminal to switch from the currently accessed remote radio unit to the target remote radio unit.
7. The method of claim 6, wherein the method further comprises:
and periodically acquiring the respective resource occupancy rate of the plurality of remote radio units, and switching cells on the terminal under the condition of meeting the terminal rate requirement, so that the resource occupancy rate of at least one of any at least two remote radio units which have direct line-of-sight paths with the same terminal when the remote radio units are deployed at positions is lower than an occupancy rate threshold.
8. A communication control method applied to a video transmission scene, comprising:
Receiving a measurement report sent by a first terminal in the process of transmitting video data;
when the first terminal meets the cell switching condition according to the measurement report, judging whether the idle resource of the target remote radio unit can meet the rate requirement of the first terminal, wherein the target remote radio unit is a remote radio unit with a direct line-of-sight path with the first terminal, if not, controlling at least part of terminals which are accessed into the target remote radio unit to switch to other remote radio units, controlling the first terminal to switch from the current accessed remote radio unit to the target remote radio unit so as to transmit video data between the first terminal and the current accessed remote radio unit, and switching to transmit video data between the first terminal and the target remote radio unit.
9. A baseband processing unit comprising: a memory, a processor; the memory is configured to store one or more computer instructions which, when executed by the processor, implement the method of any one of claims 6 to 8.
10. A computer readable storage medium, having stored thereon a computer program which, when executed, implements the method of any of claims 6 to 8.
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| CN115297486B (en) * | 2022-07-28 | 2023-05-26 | 山东浪潮科学研究院有限公司 | Deployment method and device of air network system and electronic equipment |
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