CN112751599A - Data transmission method, system and storage medium based on multi-antenna panel - Google Patents
Data transmission method, system and storage medium based on multi-antenna panel Download PDFInfo
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- CN112751599A CN112751599A CN201911044250.4A CN201911044250A CN112751599A CN 112751599 A CN112751599 A CN 112751599A CN 201911044250 A CN201911044250 A CN 201911044250A CN 112751599 A CN112751599 A CN 112751599A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04W72/04—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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The present disclosure provides a data transmission method, system and storage medium based on a multi-antenna panel, wherein the method comprises: the terminal sends the antenna panel parameters to the base station; the base station allocates resources for uplink transmission of the antenna panel based on the antenna panel parameters; the terminal determines an optimal transmitting wave beam corresponding to the antenna panel and transmits first wave beam information corresponding to the optimal transmitting wave beam to the base station; the base station determines an optimal receiving wave beam corresponding to the antenna panel and sends second wave beam information corresponding to the optimal receiving wave beam to the terminal; and the base station and the antenna panel respectively use the optimal transmitting beam and the optimal receiving beam for data transmission. The method, the system and the storage medium can utilize the antenna panel parameters to indicate the transmission of the target reference signal resource or the resource set, perform beam measurement and antenna panel selection, improve the uplink transmission performance of the multi-antenna panel and improve uplink coverage.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method and system based on a multi-antenna panel, and a storage medium.
Background
The 5G (fifth generation mobile communication technology) communication system needs to meet the requirements of ultra-large traffic density, ultra-high transmission rate, lower transmission delay, more reliable network performance and the like. The NR-MIMO technique is one of the most promising key technologies for 5G. The 5G FR2 high-frequency band network deployment faces huge challenges of complex device hardware implementation, high cost and poor coverage performance. At present, the NR-MIMO technology enhancement subject of high frequency is being studied, wherein the multi-antenna panel uplink transmission is one of the technical enhancement schemes. In order to further improve the receiving capability and uplink coverage of the terminal, meet the capacity and coverage requirements of various deployment scenes, and realize multi-antenna panel transmission is a necessary trend of technical evolution. Regarding the uplink enhancement scheme for multi-antenna panel transmission, what is primarily solved is how the base station indicates the terminal antenna panel and performs reference signal resource allocation, and there is no relevant solution at present.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a method, a system and a storage medium for data transmission based on a multi-antenna panel.
According to an aspect of the present disclosure, there is provided a data transmission method based on a multi-antenna panel, including: the terminal sends the antenna panel parameters to the base station; wherein, the terminal includes: a plurality of antenna panels; the base station allocates resources for uplink transmission of the antenna panel based on the antenna panel parameters; the terminal determines an optimal transmission beam of the base station corresponding to the antenna panel and transmits first beam information corresponding to the optimal transmission beam to the base station; the base station determines an optimal receiving beam corresponding to the antenna panel and sends second beam information corresponding to the optimal receiving beam to the terminal; and the base station and the antenna panel respectively use the optimal transmitting beam and the optimal receiving beam to carry out data transmission.
Optionally, the sending, by the terminal, the antenna panel parameter to the base station includes: the base station configures a multi-antenna panel transmission mode and sends notification information to the terminal; the terminal sends the antenna panel parameters to the base station; wherein the antenna panel parameters include: the antenna panel parameters include: an antenna panel ID, an identification of whether the antenna panel is activated, the number of antenna panels of the terminal, and the number of currently activated antenna panels.
Optionally, the base station sends the notification information to the terminal through RRC signaling; and the terminal sends the antenna panel parameters to the base station through uplink control information UCI carried by PUCCH.
Optionally, the allocating, by the base station, resources for uplink transmission of the antenna panel based on the antenna panel parameter includes: the base station allocates resources for uplink transmission of each antenna panel in an activated state; the base station establishes a mapping relation between the antenna panel ID and the resource; wherein the resources include: antenna panel resource set ID, SRS resource, PUCCH resource and PUSCH resource.
Optionally, the determining, by the terminal, an optimal transmission beam of the base station corresponding to the antenna panel includes: the base station sends a plurality of transmission beams formed by wave beams to the terminal, and the antenna panel generates a plurality of receiving beams used for receiving the transmission beams; the antenna panel measures a plurality of the transmission beams, and the terminal determines the optimal transmission beam among the plurality of the transmission beams based on the measurement result; the base station determining the optimal receiving beam corresponding to the antenna panel comprises the steps that the base station measures the plurality of receiving beams, and the optimal receiving beam is determined in the plurality of receiving beams based on the measuring result and a preset selection strategy.
Optionally, the base station sends the second beam information to the terminal through RRC signaling.
Optionally, the first beam information includes: index and reference signal quality information of the optimal transmission beam, the antenna panel ID; the second beam information includes: index and reference signal quality information of the optimal receive beam, the antenna panel ID.
According to another aspect of the present disclosure, there is provided a multi-antenna panel-based data transmission system including: a base station and a terminal; the terminal includes: a plurality of antenna panels; the terminal is used for sending the antenna panel parameters to the base station; determining an optimal transmission beam of the base station corresponding to the antenna panel, and transmitting first beam information corresponding to the optimal transmission beam to the base station; the base station is used for allocating resources for the uplink transmission of the antenna panel based on the antenna panel parameters; determining an optimal receiving beam corresponding to the antenna panel, and transmitting second beam information corresponding to the optimal receiving beam to the terminal; and the base station and the antenna panel respectively use the optimal transmitting beam and the optimal receiving beam to carry out data transmission.
Optionally, the base station is configured to configure a multi-antenna panel transmission mode, and send notification information to the terminal; the terminal is used for sending the antenna panel parameters to the base station; wherein the antenna panel parameters include: the antenna panel parameters include: an antenna panel ID, an identification of whether the antenna panel is activated, the number of antenna panels of the terminal, and the number of currently activated antenna panels.
Optionally, the base station is configured to send the notification information to the terminal through RRC signaling; and the terminal is used for sending the antenna panel parameters to the base station through uplink control information UCI carried by PUCCH.
Optionally, the base station is configured to allocate resources for uplink transmission of each antenna panel in an active state; establishing a mapping relation between the antenna panel ID and the resource; wherein the resources include: antenna panel resource set ID, SRS resource, PUCCH resource and PUSCH resource.
Optionally, the base station is configured to send a plurality of beamformed transmit beams to the terminal; the antenna panel is configured to generate a plurality of receiving beams for receiving the plurality of transmitting beams, and perform measurement on the plurality of transmitting beams, so that the terminal determines the optimal transmitting beam among the plurality of transmitting beams based on the measurement result; and the base station is used for measuring the plurality of receiving beams and determining the optimal receiving beam in the plurality of receiving beams based on the measurement result and a preset selection strategy.
Optionally, the base station is configured to send the second beam information to the terminal through RRC signaling.
Optionally, the first beam information includes: index and reference signal quality information of the optimal transmission beam, the antenna panel ID; the second beam information includes: index and reference signal quality information of the optimal receive beam, the antenna panel ID.
According to yet another aspect of the present disclosure, a computer-readable storage medium is provided, which stores computer instructions for execution by a processor to perform the method as described above.
The data transmission method, system and storage medium based on the multi-antenna panel can utilize the antenna panel parameters to indicate the transmission of the target reference signal resource or resource set, and perform beam measurement and antenna panel selection, thereby improving the uplink transmission performance of the multi-antenna panel and improving uplink coverage.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without inventive exercise.
Fig. 1 is a schematic flow chart diagram illustrating one embodiment of a multi-antenna panel-based data transmission control method according to the present disclosure;
FIG. 2 is a schematic diagram of a multi-antenna panel transmission scenario;
fig. 3 is a schematic flowchart of a terminal transmitting antenna panel parameters to a base station in an embodiment of a multi-antenna panel-based data transmission control method according to the present disclosure;
fig. 4 is a flowchart illustrating a terminal determining an optimal transmission beam in an embodiment of a multi-antenna panel-based data transmission control method according to the present disclosure;
fig. 5 is a schematic signaling interaction diagram of an embodiment of a multi-antenna panel-based data transmission control method according to the present disclosure;
fig. 6 is a block diagram of one embodiment of a multi-antenna panel-based data transmission control system according to the present disclosure.
Detailed Description
The present disclosure now will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the disclosure are shown. The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
In a 5G communication system, in order to further improve the receiving capability of a terminal and meet the coverage requirements of various deployment scenarios, it is a necessary trend of technical evolution that the terminal implements multi-antenna panel transmission. For example, when there are two antenna panels in a mobile phone, the antenna panels are placed back to back, and one antenna panel is docked with one serving base station, which is equivalent to dual link transmission, and thus the receiving performance of the terminal can be greatly improved. Particularly, when the terminal is in the moving process, the seamless connection with the base station can be realized, and the call drop rate of the terminal is greatly reduced. Regarding the uplink enhancement scheme of multi-antenna panel transmission, the problem how the base station indicates the terminal antenna panel and performs reference signal resource allocation is primarily solved.
The terms "first", "second", and the like are used hereinafter only for descriptive distinction and not for other specific meanings.
Fig. 1 is a schematic flowchart of an embodiment of a data transmission method based on a multi-antenna panel according to the present disclosure, as shown in fig. 1:
And 102, the base station allocates resources for uplink transmission of the antenna panel of the terminal based on the antenna panel parameters.
And 103, the terminal determines the optimal transmission beam of the base station corresponding to the antenna panel and transmits the first beam information corresponding to the optimal transmission beam to the base station.
And 104, the base station determines the optimal receiving beam corresponding to the antenna panel and sends second beam information corresponding to the optimal receiving beam to the terminal.
And 105, the base station and the antenna panel respectively use the optimal transmitting beam and the optimal receiving beam to carry out data transmission.
Multi-antenna Panel Transmission is a key technology for FR2 high-frequency network deployment, and a typical application scenario is as shown in fig. 2, where TRP (Transmission Reception Point) is equivalent to a conventional base station, a terminal UE1 has two antenna panels Tx Panel1 and Tx Panel2, two antenna panels Tx Panel1 and Tx Panel2 are placed in a back-to-back manner, and one antenna Panel is docked with one serving base station.
The terminal needs to report antenna Panel parameter information about the terminal antenna Panel to the base station, including a Panel-ID (antenna Panel ID), an identifier of whether the antenna Panel is activated, and the number M of antenna panels of the terminalpanelAnd the number of currently active antenna panels NpanelAnd the base station explicitly or implicitly indicates transmission of a target Reference Signal resource or resource set based on the antenna panel parameter information, where the target Reference Signal resource or resource set includes a Physical Uplink Control Channel (PUCCH) resource, a Sounding Reference Signal (SRS) resource, and the like. Application scenarios using Panel ID include: used for base station signaling transmission and terminal information reporting and used for uplink wavesAntenna panel switching in the beam management process, assisting in realizing activation and shutdown of the terminal antenna panel, and providing auxiliary information for base station resource allocation, such as SRS resources or resource sets, SSB/CSI-RS resources, and the like.
In one embodiment, the terminal may employ multiple methods for transmitting the antenna panel parameters to the base station. For example, the base station configures a multi-antenna panel transmission mode and sends notification information to the terminal; the terminal sends the antenna panel parameters to the base station, and the antenna panel parameters include: an antenna panel ID, an identification of whether an antenna panel is activated, the number of antenna panels of the terminal and the number of currently activated antenna panels, etc.
Fig. 3 is a schematic flowchart of a terminal sending antenna panel parameters to a base station in an embodiment of a data transmission control method based on a multi-antenna panel according to the present disclosure, as shown in fig. 3:
in step 301, the base station transmits notification information to the terminal through RRC signaling.
In one embodiment, the terminal has two antenna panels, antenna panel a and antenna panel B, which are both active. The antenna panel parameters sent by the terminal to the base station include: antenna panel IDs corresponding to antenna panel a and antenna panel B, respectively, an identification of whether the antenna panels corresponding to antenna panel a and antenna panel B are activated, respectively, the number of antenna panels of the terminal is 2, and the number of currently activated antenna panels is 2.
As shown in fig. 5, when the base station configures a multi-antenna panel transmission mode, the base station explicitly informs the terminal through an RRC (Radio Resource Control) signaling, and the terminal may report antenna panel parameters related to an antenna panel to the base station through Uplink Control Information (UCI) carried by a PUCCH, where the antenna panel parameters include: Panel-ID, identification of whether antenna Panel is activated, number M of antenna panels of terminalpanelAnd the number of currently active antenna panels Npanel. A field may be added to the existing UCI information, and the added field includes an identifier for carrying a Panel-ID and whether an antenna Panel is activated or not、MpanelAnd NpanelEtc.
The base station may employ various methods for allocating resources for uplink transmission of the antenna panel based on the antenna panel parameters. For example, the base station allocates resources for uplink transmission of each antenna panel in an active state, and the base station establishes a mapping relationship between an antenna panel ID and the resources; wherein the resources include: antenna panel resource set ID, SRS resource, PUCCH resource and PUSCH resource.
The base station allocates resources for uplink transmission of the terminal, and the base station indicates transmission of a target reference signal resource or a resource set explicitly or implicitly based on the Panel-ID. The base station may allocate a reference signal resource or resource set to each antenna Panel based on the Panel-ID, the target reference signal resource or resource set including PUCCH, SRS resources, etc. And the base station performs RRC signaling configuration for each antenna panel independently and determines a resource mapping relation.
For example, the terminal has two antenna panels, antenna panel a and antenna panel B, which are both active. After receiving the antenna panel parameters sent by the terminal, the base station allocates resources for uplink transmission of the antenna panel a and the antenna panel B in an activated state, establishes a mapping relationship between antenna panel IDs corresponding to the antenna panel a and the antenna panel B and the allocated resources, and sends configuration information of the resources allocated for the uplink transmission of the antenna panel a and the antenna panel B to the terminal. The base station allocates reference signal resources or resource sets to each antenna Panel based on the Panel-ID as follows:
Panel-ResourceSet Config::SEQUENCE{
panel-ResourceSetId
SRS-resourceIdList…
PUCCH-resourceIdList…
PUSCH-resourceIdList…
…
}
the base station indicates and determines which antenna Panel to operate through the configuration of the Panel-ResourceSet Config in the RRC signaling, and participates in the processes of activation, switching, turning off and the like of the antenna Panel. The base station indicates the target reference signal resource or resource set explicitly or implicitly through the Panel-ID parameter and establishes a mapping relation, thereby realizing the uplink transmission of the multi-antenna Panel and improving the uplink transmission performance. The base station can explicitly inform the terminal through RRC signaling, and the implicit indication means that the configuration is only carried out on the network side and the terminal is not required to be informed through the signaling.
In one embodiment, the terminal may adopt various methods for determining the optimal transmission beam of the base station corresponding to the antenna panel. Fig. 4 is a schematic flowchart of a terminal determining an optimal transmission beam in an embodiment of a data transmission control method based on a multi-antenna panel according to the present disclosure, as shown in fig. 4:
In step 402, the antenna panel measures a plurality of transmission beams, and the terminal determines an optimal transmission beam among the plurality of transmission beams based on the measurement result. The antenna panel measures the plurality of transmission beams by using various existing methods, and the terminal can determine the optimal transmission beam among the plurality of transmission beams based on the measurement result by using various existing methods.
In one embodiment, the terminal has two antenna panels, antenna panel a and antenna panel B, which are both active. The base station sends a plurality of transmission beams after beam forming to the terminal, and a controller of the terminal controls the antenna panel A and the antenna panel B to respectively generate a plurality of receiving beams. The antenna panel a and the antenna panel B measure the plurality of transmission beams, respectively, and the terminal selects, from the plurality of transmission beams, a transmission beam corresponding to the antenna panel a and the antenna panel B, respectively, and having the best reference signal quality as an optimal transmission beam corresponding to the antenna panel a and the antenna panel B, respectively, based on the measurement result. The terminal transmits first beam information of the optimal transmission beam corresponding to the antenna panel a and the antenna panel B to the base station.
The first beam information sent by the terminal to the base station comprises: index of the optimal transmission beam and reference signal quality information, antenna panel ID, etc. The reference signal quality information includes: and the CSI information comprises information such as RI, PMI, CQI and the like. The terminal utilizes the multiple antennas to form a wave beam pointing to a certain direction to realize wave beam forming, the space separability of wireless resources can be fully utilized, the utilization rate of the wireless resources is improved, the network capacity is improved, and the rate of edge users and the coverage rate of cells are improved.
As shown in fig. 5, the terminal performs transmission beam measurement and reporting. The base station configures M beams, can configure a shaped reference signal set (CSI-RS resource) for beam measurement for each beam direction, the terminal receives a transmission beam generated by the base station by using a fixed receiving beam, measures L1-SINR of the M reference signals, selects an optimal transmission beam, and reports Index, L1-SINR, antenna panel ID and the like of the beam to the base station side.
The base station measures the plurality of receiving beams, and determines the optimal receiving beam in the plurality of receiving beams based on the measuring result and a preset selection strategy. And the base station sends the second beam information to the terminal through RRC signaling. The second beam information includes: index of the optimal reception beam and reference signal quality information, antenna panel ID. The base station may use various existing methods to measure multiple receive beams and obtain the measurement result.
In an embodiment, the base station may measure a plurality of receiving beams generated by the antenna panel a and the antenna panel B, respectively, and determine optimal receiving beams corresponding to the antenna panel a and the antenna panel B, respectively, based on the measurement result and a preset selection policy. The selection strategy may be various, for example, selecting the best reception beam with reference to the signal quality corresponding to antenna panel a and antenna panel B, respectively, and minimizing interference between the best reception beams corresponding to antenna panel a and antenna panel B, respectively. The base station transmits second beam information corresponding to the optimal reception beams corresponding to the antenna panel a and the antenna panel B, respectively, to the terminal.
Alternatively, the base station may measure a plurality of receiving beams generated by the antenna panel a and the antenna panel B, respectively, and determine an optimal receiving beam corresponding to the antenna panel a or the antenna panel B based on the measurement result and a preset selection strategy. The base station transmits second beam information corresponding to the optimal reception beam corresponding to the antenna panel a or the antenna panel B to the terminal.
As shown in fig. 5, the base station performs beam measurement, selects a terminal transmission antenna panel, and notifies the terminal. The base station measures the receiving beams, measures L1-SINR for N receiving beams (beam sets from a plurality of antenna panels) sent by the terminal, selects the best receiving beam, and informs the terminal side of the Index and L1-SINR of the receiving beam and the antenna panel-ID where the beam is located through high-level RRC signaling, thereby realizing beam forming at the base station side and the terminal side, improving network capacity and improving the rate of edge users and the coverage rate of cells.
According to the data transmission method based on the multi-antenna panel, the transmission of the target reference signal resource or resource set is indicated by the antenna panel ID, and beam measurement and antenna panel selection are performed, so that the uplink transmission performance of the multi-antenna panel is improved, and uplink coverage is improved; the antenna panel ID has wide application, can participate in the processes of activation, switching, turn-off and the like of the antenna panel, is used for base station signaling transmission and terminal information reporting, provides auxiliary information for base station resource allocation and the like.
In one embodiment, as shown in fig. 6, the present disclosure provides a multi-antenna panel-based data transmission system, including: base station 61 and terminal 62; the terminal 62 includes: a plurality of antenna panels; the terminal 62 transmits the antenna panel parameters to the base station 61, determines an optimal transmission beam of the base station 61 corresponding to the antenna panel, and transmits first beam information corresponding to the optimal transmission beam to the base station 61.
The base station 61 allocates resources for uplink transmission of the antenna panel based on the antenna panel parameters, determines an optimal receiving beam corresponding to the antenna panel, and the base station 61 sends second beam information corresponding to the optimal receiving beam to the terminal. The base station 61 and the antenna panel perform data transmission using the optimal transmission beam and the optimal reception beam, respectively.
The base station 61 configures a multi-antenna panel transmission mode and transmits notification information to the terminal 62. The terminal 62 sends the antenna panel parameters to the base station, wherein the antenna panel parameters include: the antenna panel parameters include: an antenna panel ID, an identification of whether an antenna panel is activated, the number of antenna panels of the terminal and the number of currently activated antenna panels, etc.
The base station 61 transmits notification information to the terminal 62 by RRC signaling. The terminal 62 transmits the antenna panel parameters to the base station through uplink control information UCI carried by the PUCCH. The base station 61 allocates resources for uplink transmission of each antenna panel in an active state, and establishes a mapping relationship between an antenna panel ID and the resources, where the resources include: antenna panel resource set ID, SRS resource, PUCCH resource, PUSCH resource, etc.
The base station 61 transmits a plurality of beamformed transmission beams to the terminal 62. The antenna panel generates a plurality of reception beams for receiving the plurality of transmission beams, and measures the plurality of transmission beams so that the terminal determines an optimal transmission beam among the plurality of transmission beams based on the measurement result. The base station 61 performs measurement on a plurality of receiving beams, and determines an optimal receiving beam among the plurality of receiving beams based on the measurement result and a preset selection strategy. The base station 61 transmits the second beam information to the terminal 62 through RRC signaling. The first beam information includes: index and reference signal quality information of the optimal transmission beam, antenna panel ID; the second beam information includes: index of the optimal reception beam and reference signal quality information, antenna panel ID.
According to yet another aspect of the present disclosure, there is provided a computer-readable storage medium storing computer instructions for a processor to perform the data transmission method of the multi-antenna panel as in any one of the above embodiments.
The data transmission method, system and storage medium based on the multi-antenna panel provided in the above embodiments can utilize the antenna panel parameters to indicate the transmission of the target reference signal resource or resource set, and perform beam measurement and antenna panel selection, which can improve the uplink transmission performance of the multi-antenna panel, improve uplink coverage and reduce terminal energy consumption; the reliability and the configuration flexibility of the communication system can be better ensured.
The method and system of the present disclosure may be implemented in a number of ways. For example, the methods and systems of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise. Further, in some embodiments, the present disclosure may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.
The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (15)
1. A data transmission method based on a multi-antenna panel comprises the following steps:
the terminal sends the antenna panel parameters to the base station; wherein, the terminal includes: a plurality of antenna panels;
the base station allocates resources for uplink transmission of the antenna panel based on the antenna panel parameters;
the terminal determines an optimal transmission beam of the base station corresponding to the antenna panel and transmits first beam information corresponding to the optimal transmission beam to the base station;
the base station determines an optimal receiving beam corresponding to the antenna panel and sends second beam information corresponding to the optimal receiving beam to the terminal;
and the base station and the antenna panel respectively use the optimal transmitting beam and the optimal receiving beam to carry out data transmission.
2. The method of claim 1, the terminal transmitting antenna panel parameters to a base station comprising:
the base station configures a multi-antenna panel transmission mode and sends notification information to the terminal;
the terminal sends the antenna panel parameters to the base station;
wherein the antenna panel parameters include: the antenna panel parameters include: an antenna panel ID, an identification of whether the antenna panel is activated, the number of antenna panels of the terminal, and the number of currently activated antenna panels.
3. The method of claim 2, wherein,
the base station sends the notification information to the terminal through RRC signaling;
and the terminal sends the antenna panel parameters to the base station through uplink control information UCI carried by PUCCH.
4. The method of claim 2, the base station allocating resources for uplink transmission of the antenna panel based on the antenna panel parameters comprising:
the base station allocates resources for uplink transmission of each antenna panel in an activated state;
the base station establishes a mapping relation between the antenna panel ID and the resource;
wherein the resources include: antenna panel resource set ID, SRS resource, PUCCH resource and PUSCH resource.
5. The method of claim 4, the terminal determining an optimal transmit beam for the base station corresponding to the antenna panel comprising:
the base station sends a plurality of transmission beams formed by wave beams to the terminal, and the antenna panel generates a plurality of receiving beams used for receiving the transmission beams;
the antenna panel measures a plurality of the transmission beams, and the terminal determines the optimal transmission beam among the plurality of the transmission beams based on the measurement result;
the base station determining an optimal receive beam corresponding to the antenna panel comprises:
and the base station measures the plurality of receiving beams, and determines the optimal receiving beam in the plurality of receiving beams based on the measurement result and a preset selection strategy.
6. The method of claim 5, wherein,
and the base station sends the second beam information to the terminal through RRC signaling.
7. The method of claim 5, wherein,
the first beam information includes: index and reference signal quality information of the optimal transmission beam, the antenna panel ID;
the second beam information includes: index and reference signal quality information of the optimal receive beam, the antenna panel ID.
8. A multi-antenna panel-based data transmission system, comprising: a base station and a terminal; the terminal includes: a plurality of antenna panels;
the terminal is used for sending the antenna panel parameters to the base station; determining an optimal transmission beam of the base station corresponding to the antenna panel, and transmitting first beam information corresponding to the optimal transmission beam to the base station;
the base station is used for allocating resources for the uplink transmission of the antenna panel based on the antenna panel parameters; determining an optimal receiving beam corresponding to the antenna panel, and transmitting second beam information corresponding to the optimal receiving beam to the terminal;
and the base station and the antenna panel respectively use the optimal transmitting beam and the optimal receiving beam to carry out data transmission.
9. The system of claim 8, wherein,
the base station is used for configuring a multi-antenna panel transmission mode and sending notification information to the terminal;
the terminal is used for sending the antenna panel parameters to the base station;
wherein the antenna panel parameters include: the antenna panel parameters include: an antenna panel ID, an identification of whether the antenna panel is activated, the number of antenna panels of the terminal, and the number of currently activated antenna panels.
10. The system of claim 9, wherein,
the base station is used for sending the notification information to the terminal through RRC signaling;
and the terminal is used for sending the antenna panel parameters to the base station through uplink control information UCI carried by PUCCH.
11. The system of claim 9, wherein,
the base station is used for allocating resources for uplink transmission of each antenna panel in an activated state; establishing a mapping relation between the antenna panel ID and the resource;
wherein the resources include: antenna panel resource set ID, SRS resource, PUCCH resource and PUSCH resource.
12. The system of claim 11, wherein,
the base station is used for sending a plurality of sending beams after beam forming to the terminal;
the antenna panel is configured to generate a plurality of receiving beams for receiving the plurality of transmitting beams, and perform measurement on the plurality of transmitting beams, so that the terminal determines the optimal transmitting beam among the plurality of transmitting beams based on the measurement result;
and the base station is used for measuring the plurality of receiving beams and determining the optimal receiving beam in the plurality of receiving beams based on the measurement result and a preset selection strategy.
13. The system of claim 12, wherein,
the base station is configured to send the second beam information to the terminal through RRC signaling.
14. The system of claim 12, wherein,
the first beam information includes: index and reference signal quality information of the optimal transmission beam, the antenna panel ID;
the second beam information includes: index and reference signal quality information of the optimal receive beam, the antenna panel ID.
15. A computer-readable storage medium having stored thereon computer instructions for execution by a processor of the method of any one of claims 1 to 7.
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