CN110933745B - Method and equipment for large-scale antenna transmission - Google Patents
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/20—Control channels or signalling for resource management
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Abstract
The embodiment of the invention determines the distribution information of the terminals in the cell according to the terminal position information and/or the uplink sounding reference signal sent by the terminals, further determines the beam configuration parameters matched with the distribution information, and ensures that the coverage area of the beam is matched with the user distribution in the cell, thereby improving the system performance.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a method and equipment for large-scale antenna transmission.
Background
In the new air interface (5 g NR, fifth-generation New Radio) of the fifth generation communication technology, the massive antenna transmission technology is a key technology, in NR, not only the data channel can be transmitted in a beam forming manner, but also the control channel, such as synchronization signals (SS, synchronization Signal), physical broadcast channels (PBCH, physical Broadcast Channel), and physical downlink control channels (PDCCH, physical Downlink Control Channel), can be transmitted in a beam-based manner, so as to enhance coverage performance.
For example, up to 4 SSBs (SS/PBCH) may be supported below 3GHz in NR, up to 8 SSBs may be supported at 3-6 GHz, up to 64 SSBs may be supported above 6 GHz. How to select the number of SSBs, the beam direction and the beam width of each SSB depend on the specific implementation, and in a practical system, too many SSBs may cause SSB overhead to be too large, a single beam to be too narrow, and may cause beam switching to be too frequent, so that the system is poor in robustness, and too few SSBs may cause a single beam to be too wide and poor in coverage performance. Therefore, reasonably setting the number, direction and width of beams of the control channel is important to system performance.
Disclosure of Invention
An object of an embodiment of the present invention is to provide a method and apparatus for large-scale antenna transmission, which are used to reasonably determine beam configuration parameters for control channels in a large-scale antenna system, so that the coverage area of a beam is matched with the user distribution in the cell, thereby improving the system performance.
The embodiment of the invention provides a method for large-scale antenna transmission, which comprises the following steps:
the base station acquires distribution information of a plurality of terminals in a base station cell;
the base station determines beam configuration parameters of control channel transmission matched with the distribution information, wherein the beam configuration parameters comprise the number of beams, the beam direction and the beam width.
The embodiment of the invention also provides a base station, which comprises a processor and a transceiver; wherein,,
the processor is used for acquiring distribution information of a plurality of terminals in a base station cell; and determining beam configuration parameters of control channel transmission matched with the distribution information, wherein the beam configuration parameters comprise the number of beams, the beam direction and the beam width.
The embodiment of the invention also provides a base station, which is characterized by comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method for large-scale antenna transmission as described above.
Embodiments of the present invention also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of a method of mass antenna transmission as described above.
The method and the device for large-scale antenna transmission provided by the embodiment of the invention can determine the distribution information of the terminals in the cell according to the terminal position information and/or the uplink sounding reference signal sent by the terminals, further determine the beam configuration parameters matched with the distribution information, and enable the coverage area of the beam to be matched with the user distribution in the cell, thereby improving the system performance.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic diagram of an application scenario of a method for large-scale antenna transmission according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for massive antenna transmission according to an embodiment of the present invention;
fig. 3 is one of the block diagrams of a base station according to an embodiment of the present invention;
fig. 4 is a second block diagram of a base station according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be 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 invention to those skilled in the art.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of operation in sequences other than those illustrated or described herein, for example. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. "and/or" in the specification and claims means at least one of the connected objects.
The techniques described herein are not limited to long term evolution (Long Time Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems and may also be used for various wireless communication systems such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system may implement radio technologies such as CDMA2000, universal terrestrial radio access (Universal Terrestrial Radio Access, UTRA), and the like. UTRA includes wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as the global system for mobile communications (Global System for Mobile Communication, GSM). OFDMA systems may implement radio technologies such as ultra mobile broadband (Ultra Mobile Broadband, UMB), evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, flash-OFDM, and the like. UTRA and E-UTRA are parts of the universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS). LTE and higher LTE (e.g., LTE-a) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-a and GSM are described in the literature from an organization named "third generation partnership project" (3rd Generation Partnership Project,3GPP). CDMA2000 and UMB are described in the literature from an organization named "third generation partnership project 2" (3 GPP 2). The techniques described herein may be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. However, the following description describes an NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.
The following description provides examples and does not limit the scope, applicability, or configuration as set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a User terminal or a User Equipment (UE), and the terminal 11 may be a terminal-side Device such as a mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, which is not limited to a specific type of the terminal 11 in the embodiment of the present invention. The network device 12 may be a base station and/or a core network element, where the base station may be a 5G or later version base station (e.g., a gNB, a 5GNR NB, etc.), or a base station in another communication system (e.g., an eNB, a WLAN access point, or other access points, etc.), where the base station may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, a BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary, and in the embodiment of the present invention, the base station in the NR system is merely an example, but is not limited to a specific type of the base station.
The base stations may communicate with the terminal 11 under the control of a base station controller, which may be part of the core network or some base stations in various examples. Some base stations may communicate control information or user data with the core network over a backhaul. In some examples, some of these base stations may communicate with each other directly or indirectly over a backhaul link, which may be a wired or wireless communication link. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multicarrier transmitter may transmit modulated signals on the multiple carriers simultaneously. For example, each communication link may be a multicarrier signal modulated according to various radio technologies. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.
The base station may communicate wirelessly with the terminal 11 via one or more access point antennas. Each base station may provide communication coverage for a respective corresponding coverage area. The coverage area of an access point may be partitioned into sectors that form only a portion of that coverage area. A wireless communication system may include different types of base stations (e.g., macro base stations, micro base stations, or pico base stations). The base station may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations, including coverage areas of the same or different types of base stations, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks, may overlap.
The communication link in the wireless communication system may include an Uplink for carrying Uplink (UL) transmissions (e.g., from the terminal 11 to the network device 12) or a Downlink for carrying Downlink (DL) transmissions (e.g., from the network device 12 to the terminal 11). UL transmissions may also be referred to as reverse link transmissions, while DL transmissions may also be referred to as forward link transmissions. Downlink transmissions may be made using licensed bands, unlicensed bands, or both. Similarly, uplink transmissions may be made using licensed bands, unlicensed bands, or both.
Referring to fig. 2, an embodiment of the present invention provides a method for large-scale antenna transmission, which is applied to a base station, and includes:
Here, in step 21, the embodiment of the present invention obtains distribution information of a plurality of terminals in a cell of the base station, where the distribution information refers to a location distribution of the terminals in the cell, such as a horizontal location (e.g. longitude and latitude coordinates, etc.) and a vertical altitude (e.g. altitude), etc., the distribution information may reflect a distribution situation of the terminals in the cell, for example, there may be more terminals in some areas in the cell, the terminal density of the areas may be greater, and there may be only a small number of terminals in other areas, or even no terminal, and the terminal density of the areas may be less.
In addition, the plurality of terminals in step 21 may be all or part of the terminals camping on the base station cell.
In step 22, the base station determines the beam configuration parameters of the control channel transmission matched with the distribution information, wherein the beam configuration parameters include the number of beams, the beam direction and the beam width.
Here, the base station determines beam configuration parameters for transmitting the control channel according to the distribution information of the plurality of terminals in the base station cell, so that the beam configuration parameters are matched with the terminal distribution in the cell, and the coverage area of the beam can be matched with the user distribution in the cell, thereby improving the system performance.
Through the steps, the embodiment of the invention can improve the rationality of the beam configuration parameters of the control channel, lead the coverage area of the beam to be matched with the user distribution in the cell, improve the transmission performance of the control channel, and further improve the robustness and the overall performance of the communication system.
After the above step 22, the base station may transmit the control channel based on the beam configuration parameters. Here, the control channels include, but are not limited to, a Synchronization Signal (SS), a Physical Broadcast Channel (PBCH), and a Physical Downlink Control Channel (PDCCH), and since a beam configuration matching with the terminal distribution is adopted, the beam in the embodiment of the present invention is more matched with the position of the actual terminal, so that the transmission performance of the control channel can be improved.
The following description is given by way of example only of specific implementation of the above steps, and the present invention is not limited thereto.
As an implementation manner, the terminal may periodically collect its own location information and report it to the base station. In the step 21, the base station may receive terminal position information sent by the terminal, where the terminal position information includes a horizontal position (such as longitude and latitude coordinates) and a vertical height (such as altitude information) of the terminal; then, the base station determines distribution information of the plurality of terminals in the base station cell according to the terminal position information sent by the plurality of terminals.
As another implementation, the terminal may transmit an uplink sounding reference signal (SRS, sounding Reference Signal). In the above step 21, the base station may receive an uplink sounding reference signal (SRS, sounding Reference Signal) transmitted by the terminal. Then, the base station estimates the terminal position information of a plurality of terminals according to uplink sounding reference signals sent by the terminals; and further determining distribution information of the plurality of terminals in the base station cell according to the terminal position information sent by the plurality of terminals.
Here, after receiving the uplink SRS of the terminal, the base station can estimate the terminal location information of the terminal from the information such as the received signal strength and the received direction of the uplink SRS. For example, according to the direction of the receiving beam, the direction of the terminal relative to the base station is determined, and then the distance between the terminal and the base station is determined according to the signal strength, and finally the terminal position information of the terminal can be estimated. Of course, in the embodiment of the invention, a terminal positioning technology between base stations can also be adopted to determine the specific position of the terminal.
As yet another implementation manner, part of terminals (hereinafter referred to as first class terminals for convenience of description) in the cell report terminal location information to the base station, and part of terminals (hereinafter referred to as second class terminals for convenience of description) transmit uplink SRS. Thus, in the step 21, the base station may receive the terminal position information sent by the first type of terminal and the uplink sounding reference signal sent by the second type of terminal, where the terminal position information includes the horizontal position and the vertical height of the terminal; then, the base station estimates the terminal position information of the second class of terminals according to the uplink sounding reference signals of the second class of terminals; and finally, determining distribution information of the plurality of terminals in the base station cell according to the terminal position information of the terminals in the first class and the second class.
In the above three implementation manners, after obtaining the terminal position information of the terminal in the cell, when determining the distribution information of the terminal, the embodiment of the invention may perform clustering processing on the obtained terminal position information of all the terminals by adopting a clustering processing manner, so as to obtain a plurality of clusters, where each cluster includes at least one terminal; and then, according to the terminal position information in each cluster, obtaining the central position point of the cluster as the position information of the cluster. Therefore, the embodiment of the invention can obtain a plurality of clusters, the number of the terminals under each cluster and the coordinates (such as longitude and latitude coordinates, altitude and the like) of the central position point of each cluster. For example, the embodiment of the invention can adopt a K-MEANS clustering algorithm to execute the clustering processing.
Thus, in step 22, the base station may determine the number of beams and the beam width corresponding to each cluster according to the number of clusters and the number of terminals in each cluster terminal; and determining the beam direction corresponding to each cluster according to the position information of each cluster.
As an alternative, the number of beams corresponding to each cluster is positively correlated with the number of terminals in the cluster; the beam width corresponding to each cluster is positively correlated with the terminal distribution range in the cluster; the beam direction corresponding to each cluster may be oriented toward the location of the cluster, e.g., the center location point of the cluster.
Here, the terminal distribution range in the cluster may determine a minimum included angle by using the base station as the vertex of the included angle, where the minimum included angle is the minimum angle of all terminals in the cluster, and the minimum included angle is used as an index of the terminal distribution range. And further, according to the minimum included angle, determining the width of the wave beam, so that all wave beams under the cluster can cover all terminals in the cluster.
For example, the base station may configure one or more corresponding beams for each cluster, where when the number of terminals in a certain cluster is greater, more beams may be configured; conversely, fewer beams may be configured when the number of terminals in a cluster is smaller.
For example, when the cluster corresponds to only one beam, the width of the beam may be configured to match the minimum included angle; when the cluster corresponds to only a plurality of beams, the bandwidths and directions of the respective beams may be configured so that the beams can cover all terminals in the cluster.
When each cluster corresponds to only one beam, the embodiment of the invention can combine factors such as the distance between the central position point of a cluster and a base station when the distribution range of the terminals in a certain cluster is large, and the like, so that the beam of the cluster is configured with wider beam width, and the beam can cover all the terminals in the cluster; in contrast, when the distribution range of the terminals in a certain cluster is smaller, in combination with factors such as the distance between the central position point of the cluster and the base station, a narrower beam width can be configured, so that the beam can cover all the terminals in the cluster.
The method for large-scale antenna transmission according to the embodiment of the present invention is described above. Based on the method, the embodiment of the invention also provides equipment for implementing the method.
Referring to fig. 3, an embodiment of the present invention provides a schematic structure of a base station 300, which includes: a processor 301 and a transceiver 302. Wherein,,
the processor 301 is configured to obtain distribution information of a plurality of terminals in a base station cell; and determining beam configuration parameters of control channel transmission matched with the distribution information, wherein the beam configuration parameters comprise the number of beams, the beam direction and the beam width.
Preferably, the transceiver 302 is configured to transmit the control channel based on the beam configuration parameter.
Preferably, the transceiver 302 is further configured to receive terminal location information sent by a terminal, where the terminal location information includes a horizontal location and a vertical height of the terminal;
the processor 301 is further configured to determine distribution information of the plurality of terminals in the base station cell according to terminal location information sent by the plurality of terminals.
Preferably, the transceiver 302 is further configured to receive an uplink sounding reference signal sent by a terminal;
the processor 301 is further configured to estimate terminal location information of a plurality of terminals according to uplink sounding reference signals sent by the plurality of terminals; and determining distribution information of the plurality of terminals in the base station cell according to the terminal position information sent by the plurality of terminals.
Preferably, the transceiver 302 is further configured to receive terminal position information sent by a first type of terminal and an uplink sounding reference signal sent by a second type of terminal, where the terminal position information includes a horizontal position and a vertical height of the terminal;
the processor 301 is further configured to estimate terminal location information of the second type of terminal according to an uplink sounding reference signal of the second type of terminal; and determining distribution information of the plurality of terminals in the base station cell according to the terminal position information of the terminals in the first class and the second class.
Preferably, the processor 301 is further configured to perform clustering on terminal location information of all terminals to obtain a plurality of clusters, where each cluster includes at least one terminal; and obtaining the central position point of each cluster according to the terminal position information in the cluster, and taking the central position point as the position information of the cluster.
Preferably, the processor 301 is further configured to determine the number of beams and the beam width corresponding to each cluster according to the number of clusters and the number of terminals in each cluster terminal; and determining the beam direction corresponding to each cluster according to the position information of each cluster.
Referring to fig. 4, an embodiment of the present invention provides a schematic structure of a base station 400, which includes: processor 401, transceiver 402, memory 403, and bus interface, wherein:
in an embodiment of the present invention, the base station 400 further includes: a program stored in memory 403 and executable on processor 401.
The processor 401 is configured to read the program in the memory, and execute the following procedures: acquiring distribution information of a plurality of terminals in a base station cell; and determining beam configuration parameters of control channel transmission matched with the distribution information, wherein the beam configuration parameters comprise the number of beams, the beam direction and the beam width.
In fig. 4, a bus architecture may comprise any number of interconnected buses and bridges, with various circuits of the one or more processors, represented in particular by processor 401, and the memory, represented by memory 403, being linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 402 may be a number of elements, i.e. comprising a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium.
The processor 401 is responsible for managing the bus architecture and general processing, and the memory 403 may store data used by the processor 401 in performing operations.
Preferably, the transceiver 402 is configured to transmit the control channel based on the beam configuration parameter.
Preferably, the transceiver 402 is further configured to receive terminal location information sent by a terminal, where the terminal location information includes a horizontal location and a vertical height of the terminal;
the processor 401 is further configured to determine distribution information of the plurality of terminals in the base station cell according to terminal location information sent by the plurality of terminals.
Preferably, the transceiver 402 is further configured to receive an uplink sounding reference signal sent by a terminal;
the processor 401 is further configured to estimate terminal location information of a plurality of terminals according to uplink sounding reference signals sent by the plurality of terminals; and determining distribution information of the plurality of terminals in the base station cell according to the terminal position information sent by the plurality of terminals.
Preferably, the transceiver 402 is further configured to receive terminal position information sent by a first type of terminal and an uplink sounding reference signal sent by a second type of terminal, where the terminal position information includes a horizontal position and a vertical height of the terminal;
the processor 401 is further configured to estimate terminal location information of the second type of terminal according to an uplink sounding reference signal of the second type of terminal; and determining distribution information of the plurality of terminals in the base station cell according to the terminal position information of the terminals in the first class and the second class.
Preferably, the processor 401 is further configured to perform clustering on terminal location information of all terminals to obtain a plurality of clusters, where each cluster includes at least one terminal; and obtaining the central position point of each cluster according to the terminal position information in the cluster, and taking the central position point as the position information of the cluster.
Preferably, the processor 401 is further configured to determine the number of beams and the beam width corresponding to each cluster according to the number of clusters and the number of terminals in each cluster terminal; and determining the beam direction corresponding to each cluster according to the position information of each cluster.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment of the present invention.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method for mass antenna transmission of the various embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (15)
1. A method of mass antenna transmission, comprising:
the base station acquires distribution information of a plurality of terminals in a base station cell;
the base station determines beam configuration parameters of control channel transmission matched with the distribution information, wherein the beam configuration parameters comprise the number of beams, the direction of the beams and the width of the beams;
the step of obtaining the distribution information of the plurality of terminals in the base station cell comprises the following steps:
the base station receives terminal position information sent by a first type of terminal and an uplink sounding reference signal sent by a second type of terminal, wherein the terminal position information comprises the horizontal position and the vertical height of the terminal;
the base station estimates the terminal position information of the second class of terminals according to the uplink sounding reference signals of the second class of terminals;
and the base station determines the distribution information of the plurality of terminals in the base station cell according to the terminal position information of the terminals in the first class and the second class.
2. The method of claim 1, wherein after determining the beam configuration parameters, the method further comprises:
and the base station transmits the control channel based on the beam configuration parameters.
3. The method according to claim 1, wherein the step of acquiring distribution information of the plurality of terminals in the base station cell comprises:
the base station receives terminal position information sent by a terminal, wherein the terminal position information comprises the horizontal position and the vertical height of the terminal;
and the base station determines the distribution information of the plurality of terminals in the base station cell according to the terminal position information sent by the plurality of terminals.
4. The method according to claim 1, wherein the step of acquiring distribution information of the plurality of terminals in the base station cell comprises:
the base station receives an uplink sounding reference signal sent by a terminal;
the base station estimates terminal position information of a plurality of terminals according to uplink sounding reference signals sent by the terminals;
and the base station determines the distribution information of the plurality of terminals in the base station cell according to the terminal position information sent by the plurality of terminals.
5. The method according to any of the claims 3 to 4, characterized in that said step of determining distribution information of said plurality of terminals in a base station cell comprises:
clustering is carried out on the terminal position information of all the terminals to obtain a plurality of clusters, and each cluster comprises at least one terminal;
and obtaining the central position point of each cluster according to the position information of the terminal in the cluster, and taking the central position point as the position information of the cluster.
6. The method of claim 5, wherein said determining beam configuration parameters for control channel transmissions that match said distribution information comprises:
according to the number of clusters and the number of terminals in each cluster terminal, determining the number of beams and the beam width corresponding to each cluster; the method comprises the steps of,
and determining the beam direction corresponding to each cluster according to the position information of each cluster.
7. The method of claim 1, wherein the control channel comprises at least one of a synchronization signal SS, a physical broadcast channel PBCH, and a physical downlink control channel.
8. A base station comprising a processor and a transceiver; wherein,,
the processor is used for acquiring distribution information of a plurality of terminals in a base station cell; and determining beam configuration parameters of control channel transmission matched with the distribution information, wherein the beam configuration parameters comprise the number of beams, the beam direction and the beam width;
the transceiver is further configured to receive terminal position information sent by the first type of terminal and an uplink sounding reference signal sent by the second type of terminal, where the terminal position information includes a horizontal position and a vertical height of the terminal;
the processor is further configured to estimate terminal location information of the second type terminal according to an uplink sounding reference signal of the second type terminal; and determining distribution information of the plurality of terminals in the base station cell according to the terminal position information of the terminals in the first class and the second class.
9. The base station of claim 8, wherein the base station,
the transceiver is configured to transmit the control channel based on the beam configuration parameter.
10. The base station of claim 8, wherein the base station,
the transceiver is further used for receiving terminal position information sent by the terminal, wherein the terminal position information comprises the horizontal position and the vertical height of the terminal;
the processor is further configured to determine distribution information of the plurality of terminals in the base station cell according to terminal location information sent by the plurality of terminals.
11. The base station of claim 8, wherein the base station,
the transceiver is further configured to receive an uplink sounding reference signal sent by the terminal;
the processor is further configured to estimate terminal location information of the plurality of terminals according to uplink sounding reference signals sent by the plurality of terminals; and determining distribution information of the plurality of terminals in the base station cell according to the terminal position information sent by the plurality of terminals.
12. The base station according to any of the claims 10 to 11, characterized in that,
the processor is further used for carrying out clustering processing on the terminal position information of all the terminals to obtain a plurality of clusters, and each cluster comprises at least one terminal; and obtaining the central position point of each cluster according to the terminal position information in the cluster, and taking the central position point as the position information of the cluster.
13. The base station of claim 12, wherein the base station,
the processor is further configured to determine the number of beams and the beam width corresponding to each cluster according to the number of clusters and the number of terminals in each cluster terminal; and determining the beam direction corresponding to each cluster according to the position information of each cluster.
14. A base station, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method of large scale antenna transmission according to any of claims 1 to 7.
15. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, implements the steps of the method of large-scale antenna transmission according to any of claims 1 to 7.
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| CN114390534B (en) * | 2020-10-16 | 2024-03-12 | 中国移动通信集团设计院有限公司 | Beam pattern determining method and device, electronic equipment and storage medium |
| CN115549741A (en) * | 2021-06-29 | 2022-12-30 | 中兴通讯股份有限公司 | Beam selection method, electronic device, and storage medium |
| CN115884203A (en) * | 2021-09-27 | 2023-03-31 | 中国移动通信集团山西有限公司 | Uplink coverage enhancement method and device for cell edge users |
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| US10158414B2 (en) * | 2015-06-18 | 2018-12-18 | Samsung Electronics Co., Ltd. | Advanced beamforming and feedback methods for MIMO wireless communication systems |
| US20180294859A1 (en) * | 2015-10-07 | 2018-10-11 | Intel IP Corporation | Dynamically beamformed control channel for beamformed cells |
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