WO2021056848A1 - Procédé et système de transmission de données, dispositif informatique, et support d'informations - Google Patents

Procédé et système de transmission de données, dispositif informatique, et support d'informations Download PDF

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Publication number
WO2021056848A1
WO2021056848A1 PCT/CN2019/124702 CN2019124702W WO2021056848A1 WO 2021056848 A1 WO2021056848 A1 WO 2021056848A1 CN 2019124702 W CN2019124702 W CN 2019124702W WO 2021056848 A1 WO2021056848 A1 WO 2021056848A1
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WO
WIPO (PCT)
Prior art keywords
data
remote unit
unit
uplink
unit group
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PCT/CN2019/124702
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English (en)
Chinese (zh)
Inventor
黄鹏飞
区洋
丁宝国
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京信通信系统（中国）有限公司
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Publication of WO2021056848A1 publication Critical patent/WO2021056848A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
    • H04B7/0814—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching based on current reception conditions, e.g. switching to different antenna when signal level is below threshold
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/0874—Hybrid systems, i.e. switching and combining using subgroups of receive antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603—Arrangements for wireless physical layer control
    • H04B7/2609—Arrangements for range control, e.g. by using remote antennas
    • 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

Definitions

  • This application relates to the field of communication technology, and in particular to a data transmission method, system, computer equipment and storage medium.
  • the distributed pico base station is a new type of indoor wireless distribution system that performs optical fiber or Category 5 wiring indoors. It uses a base band unit (BBU) + radio unit (RRU) structure.
  • BBU base band unit
  • RRU radio unit
  • the system architecture of the distributed pico base station is composed of a host unit + an extension unit + a remote unit.
  • 3GPP Third Generation Partnership Project
  • This option is used as a reference, that is, in the prior art, the host unit, extension unit and remote unit are divided into functions based on option8, and then the host unit completes the modulation and demodulation of the baseband signal, and the extension unit is responsible for the forwarding and downlink signal transmission. And converge, and then receive/send uplink/downlink radio frequency signals through the remote unit, so as to achieve continuous coverage of the indoor environment.
  • the host unit processes the uplink data of the remote unit, it merges the data of all the remote units, resulting in a multiple increase of the noise floor, and the performance of edge users under the coverage of multiple remote unit groups is poor.
  • an embodiment of the present application provides a data transmission method, including the following steps:
  • the UE determines whether the UE is an edge user; the edge user is a user located between multiple remote unit groups;
  • the UE is an edge user, determine the current serving remote unit group of the UE according to the current load of the cell where the UE is located and various signal transmission quality data;
  • the uplink scheduling information of the UE is transmitted to the target extension unit; the target extension unit indicates the extension unit connected to the currently serving remote unit group; the uplink scheduling information is used to instruct the target extension unit to upload the currently serving remote unit group according to the uplink scheduling information
  • the uplink data of the UE is processed, and the processed uplink data is uploaded to the host unit.
  • an embodiment of the present application provides a data transmission method, including the following steps:
  • the edge user is the user located between multiple remote unit groups;
  • the uplink scheduling information process the uplink data of the UE uploaded by the current serving remote unit group of the edge user, and upload the processed uplink data to the host unit; the current serving remote unit group is based on the current load of the cell where the edge user is located
  • the service remote unit group of the edge user is determined by the signal transmission quality data of the multiple service remote unit groups of the edge user.
  • an embodiment of the present application provides a base station system, including: a host unit, an extension unit, and a remote unit; the host unit is connected to at least one extension unit, and each extension unit is connected to multiple remote unit groups;
  • the remote unit group includes at least one remote unit;
  • the host unit is used to determine whether the UE is an edge user according to the signal transmission quality data of multiple serving remote unit groups and the UE, and when the UE is an edge user, determine according to the current load of the cell where the UE is located and the signal transmission quality data
  • the UE currently serves the remote unit group, and then transmits the UE's uplink scheduling information to the target extension unit;
  • the edge user is the user located between multiple remote unit groups;
  • the target extension unit indicates the one connected to the current serving remote unit group Extension unit;
  • the uplink scheduling information is used to instruct the target extension unit to process the UE uplink data uploaded by the currently serving remote unit group according to the uplink scheduling information, and upload the processed uplink data to the host unit;
  • the extension unit is used to receive the uplink scheduling information of the edge user sent by the host unit; and process the uplink data of the UE uploaded by the currently serving remote unit group according to the uplink scheduling information, and then upload the processed uplink data to the host unit;
  • the current serving remote unit group is determined according to the current load of the cell where the edge user is located and the signal transmission quality data of each serving remote unit group of the edge user;
  • the remote unit is used to implement radio frequency signal transceiving functions.
  • an embodiment of the present application provides a computer device, including a memory and a processor, the memory stores a computer program, and when the processor executes the computer program, any one of the methods provided in the embodiments of the first aspect and the second aspect is implemented. step.
  • an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of any one of the methods provided in the embodiments of the first aspect and the second aspect are implemented .
  • the host unit completes the transmission of the UE through the signal transmission quality data of the multiple serving remote unit groups corresponding to the UE and the current load of the cell.
  • different remote unit groups to be transmitted are determined under different cell load conditions to ensure that edge users upload the maximum data according to the actual resource capacity. Greatly improve the uplink performance of users at the lower edge of the overlapping coverage of the remote unit group.
  • FIG. 1 is an application environment diagram of a data transmission method provided by an embodiment
  • FIG. 2 is a schematic flowchart of a data transmission method provided by an embodiment
  • FIG. 3 is a schematic flowchart of a data transmission method provided by an embodiment
  • FIG. 4 is a schematic flowchart of a data transmission method provided by an embodiment
  • FIG. 5 is a schematic flowchart of a data transmission method provided by an embodiment
  • FIG. 6 is a schematic flowchart of a data transmission method provided by an embodiment
  • FIG. 7 is an interaction diagram of a data transmission method provided by an embodiment
  • Figure 8 is a schematic diagram of BBU-RRU function segmentation provided by the 3GPP protocol
  • FIG. 9 is a schematic diagram of a base station subsystem according to an embodiment
  • FIG. 10 is a schematic diagram of functional division of a host unit provided by an embodiment
  • FIG. 11 is a schematic diagram of a UE location scenario provided by an embodiment
  • Fig. 12 is a diagram of the internal structure of a computer device in an embodiment.
  • the data transmission method provided by this application can be applied to the base station system as shown in FIG. 1.
  • the system includes a host unit, an extension unit, and a remote unit.
  • the host unit is in communication connection with multiple extension units, and each extension The units are all communicatively connected with at least one remote unit.
  • multiple expansion units can have a parallel relationship, such as expansion unit 1 and expansion unit 2, or a cascade relationship, such as expansion unit 1 and expansion unit 3; all remote units connected to the same expansion unit can form A remote unit group, the remote units connected to the same expansion unit can also be combined to form multiple remote unit groups.
  • Each expansion unit can be connected to at least one remote unit group (not limited to one remote unit group shown in Figure 1), such as the remote unit group 1 to which the expansion unit 1 is connected; each remote unit group can include At least one remote unit.
  • the host unit mainly completes the modulation and demodulation of baseband signals, the expansion unit mainly completes the forwarding and aggregation of uplink/downlink signals, and the remote unit mainly completes the RF reception/radio transmission of uplink/downlink signals; generally, the host unit communicates with the core network Connected, the remote unit communicates with the UE.
  • the above-mentioned base station system can realize the communication between the host unit and the UE, the communication between the core network and the UE, the communication between the UE and the UE, and so on.
  • the UE may be, but is not limited to, devices with radio frequency receiving/sending functions such as smart phones, computer equipment, portable wearable devices, Internet of Things equipment, vehicles, drones, and industrial equipment.
  • the embodiments of the present application provide a data transmission method, system, computer equipment, and storage medium, which are designed to solve the poor performance of edge users under the coverage of multiple remote unit groups when the host unit processes the uplink data of the remote unit.
  • Technical issues Hereinafter, the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems will be described in detail through the embodiments and the accompanying drawings. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
  • the execution subject of FIGS. 2 to 6 may also be a data transmission device, which may be implemented as part or all of data transmission through software, hardware, or a combination of software and hardware.
  • FIG. 2 provides a data transmission method.
  • This embodiment relates to a host unit determining whether a user terminal (User Equipment, UE) is an edge user, and then determining the current serving remote unit of the UE
  • UE User Equipment
  • FIG. 2 provides a data transmission method.
  • This embodiment relates to a host unit determining whether a user terminal (User Equipment, UE) is an edge user, and then determining the current serving remote unit of the UE
  • UE User Equipment
  • S101 Determine whether the UE is an edge user according to the signal transmission quality data of multiple serving remote unit groups and the UE; the edge user is a user located between the multiple remote unit groups.
  • the serving remote unit group refers to the remote unit group serving the UE, and each serving remote unit group includes multiple remote units.
  • each of the remote unit groups includes The remote units may have a correlation in their spatial positions, for example, the distance between each other is less than a preset distance threshold, or they are all in an area of a preset size.
  • the signal transmission quality data represents the signal data of the signal quality status between the remote unit and the UE.
  • the signal transmission quality data may be obtained in advance, or may be reported by the UE in real time, which is not limited in this embodiment.
  • the edge user refers to the location where the UE is located between multiple serving remote user groups, and the edge location is relative to the central user.
  • the central user means that the UE is at the center of a serving remote unit group.
  • the host unit determines whether the UE is an edge user based on the signal transmission quality data of multiple serving remote unit groups and the UE.
  • the determination method may be that the host unit determines the signal of each signal transmission quality data.
  • Strength according to the signal strength of the UE transmitted by the multiple serving remote unit groups, it is determined whether the UE is an edge user. For example, the host unit determines whether the UE is located between multiple serving remote unit groups or in the center of a serving remote unit group according to the signal quality strength of UEs transmitted by multiple serving remote unit groups. Between multiple serving remote unit groups, the UE is determined to be an edge user, otherwise it is a central user.
  • S102 If the UE is an edge user, determine the current serving remote unit group of the UE according to the current load of the cell where the UE is located and various signal transmission quality data.
  • the host unit determines the group of serving remote units to be transmitted according to the current load of the cell where the UE is located and various signal transmission quality data.
  • the current serving remote unit group represents the target serving remote unit group that the host unit needs to receive and process data, which is equivalent to if the UE is an edge user, the signal data sent by it can be transmitted through multiple serving remote unit groups To the host unit, but the host unit is under environmental constraints, such as the impact of cell load, which prevents the host unit from receiving and processing all the data transmitted by the UE serving remote unit group. Therefore, in practical applications, the host unit needs to be based on the cell where the UE is located.
  • the current load of the UE and the signal transmission quality data of each serving remote unit group determine the current serving remote unit group of the UE.
  • the host unit determines the currently serving remote unit group. If the UE determined in step S101 is not an edge user but a central user, the host unit directly obtains From the signal transmission quality data, the one with the highest signal strength can be determined as the current serving remote unit group of the UE. In one embodiment, if the UE is an edge user, the number of remote unit groups currently served by the UE is at least two; if the aforementioned UE is a central user, the number of remote unit groups currently served by the UE is one.
  • the uplink scheduling information of the UE is transmitted to the target extension unit; the target extension unit indicates the extension unit connected to the currently serving remote unit group; the uplink scheduling information is used to instruct the target extension unit to perform the current serving remote unit based on the uplink scheduling information. Group the uploaded UE uplink data for processing, and upload the processed uplink data to the host unit.
  • the host unit transmits the uplink scheduling information of the currently serving remote unit group to the target extension unit.
  • the uplink scheduling information includes time-frequency resource information (such as time-frequency resource location) allocated to the currently serving remote unit group by the host unit and identification information of the currently serving remote unit group, which is used to instruct the target extension unit according to the time
  • the frequency resource information transmits data to the currently serving remote unit group and the host unit, that is, the target expansion unit processes the uplink data uploaded by the currently serving remote unit group, and uploads the processed uplink data to the host unit.
  • the uplink data may be voice data, video data, web page data, etc., uplink control data, etc.
  • the target expansion unit represents the expansion unit connected to the currently serving remote unit group. It should be noted that since a remote unit group can be connected to multiple expansion units, that is, the target expansion unit in this embodiment is connected to the current service remote unit group.
  • One of the expansion units connected to the serving remote unit group, and the signal transmission link between the host unit connected to the target expansion unit and the current serving remote unit group has the best signal quality, where the signal transmission link represents It is the link between the host unit-expansion unit-remote unit-UE. It is understandable that the communication between the host unit and the currently serving remote unit group is carried out through the target extension unit, avoiding communication with the UE through other non-target extension units, so as to improve the current serving remote unit group and the host unit. High-quality, high-efficiency signal data transmission between.
  • the host unit completes the intelligent selection of the UE’s remote unit group to be transmitted through the signal transmission quality data of the multiple serving remote unit groups corresponding to the UE and the current load of the cell, and After the uplink data signal destination expansion unit of the selected remote unit group to be transmitted is processed, it is transmitted back to the host unit.
  • the host unit realizes the intelligent selection of the UE's uplink service remote unit group, different remote unit groups to be transmitted are determined under different cell load conditions to ensure that edge users upload the maximum data according to the actual resource capacity. Greatly improve the uplink performance of users at the lower edge of the overlapping coverage of the remote unit group.
  • the embodiments of the present application also provide a data transmission method, which involves a specific process for the host unit to determine whether the UE is an edge user.
  • the above S101 step includes:
  • S201 Acquire signal transmission quality data of multiple serving remote unit groups corresponding to the UE.
  • the host unit obtains signal transmission quality data of multiple serving remote unit groups corresponding to the UE, where the signal transmission quality data represents a signal of the signal quality status between the remote unit and the UE.
  • the signal transmission quality data is sounding reference signal data, or preamble data acquired through a physical random access channel, that is, sounding reference signal (SRS, Sounding Reference Signal), or physical random access channel
  • SRS sounding reference signal
  • PRACH Physical Random Access Channel
  • the host unit may obtain the signal transmission quality data of the serving remote unit group of the UE by first determining the serving remote unit group corresponding to the UE, and then obtaining the signal transmission quality data of the serving remote unit group .
  • the manner in which the host unit determines the serving remote unit group corresponding to the UE may be determined according to the location information of the UE, may also be determined according to the signal of the UE, or may be in other manners, which is not limited in this embodiment.
  • the host unit Based on the multiple signal transmission quality data acquired in step S201, the host unit acquires the difference between the signal transmission quality data.
  • the host unit determines whether the increase range of each difference meets the preset amplitude rule, where the preset amplitude rule is used to indicate the amplitude change of each signal transmission quality data Rule, if the increase range of each difference meets the preset range rule, the UE is determined to be an edge user.
  • the location of the UE is located between multiple remote unit groups; if the location of the UE is located at the center of a remote unit group, the UE is a central user.
  • the increment of each difference is a gentle increase, it means that the signal data strengths of the UEs received by the multiple serving remote unit groups are not much different. In this case, it means that the UE is at multiple serving remotes. Between the unit groups, the UE is an edge user. If the increment of each difference value is one of which is much larger than the other value, it means that the signal strength of one serving unit group is much greater than the signal strength of other serving remote unit groups, which means that the UE is at the highest signal strength. The strong service remote unit group center, then the UE is the center user.
  • the host unit determines the change rule of the increase range of each difference according to the difference between the signal transmission quality data of multiple remote unit groups, and if the change rule of the increase range meets the expected value If the amplitude rule is set, the UE is determined to be an edge user. In this way, the change rule of the user's position is located according to the strength of the signal, and then the edge user is determined according to the change rule, which greatly improves the accuracy of the judgment of the edge user.
  • the data uplink process is described in the embodiment of FIG. 2.
  • the data also involves the downlink transmission process.
  • the downlink process represents the data transmission process from the host unit to the UE.
  • the method further includes: transmitting the downlink scheduling information and downlink data of the UE to a target extension unit; the target extension unit is used to process the downlink data according to the downlink scheduling information, and the processed downlink The data is transmitted to the UE through the currently serving remote unit group.
  • the host unit sends the downlink scheduling information and downlink service data of the UE to the target extension unit.
  • the target extension unit allocates the downlink scheduling information and downlink service data to the UE according to the host unit carried in the downlink scheduling information.
  • Time-frequency resources the downlink service data is processed, and then the processed downlink service data is transmitted to the UE through the currently serving remote unit group.
  • the downlink service data is data to be sent by the host unit to the UE, such as voice data, video data, webpage data, etc., delivered by the core network.
  • the data processing of the target extension unit includes, but is not limited to, Fourier transform, channel estimation, equalization, descrambling, decoding, and RE demapping.
  • the target extension unit is used to perform low-layer physical layer processing on uplink data and downlink data. Regardless of the uplink process or the downlink process, the target extension unit performs low-level physical layer processing on the data before transmitting it to the host unit or the remote unit to be transmitted.
  • the lower physical layer includes but is not limited to FFT and RE demapping processing, and the processed data may be SRS symbol data.
  • both the uplink scheduling information and the downlink scheduling information include the identity of the currently serving remote unit group.
  • the identifier of the currently serving remote unit group is used to instruct the target expansion unit to determine which remote unit group is currently serving, where the identifier can be in any form, such as numbers, letters, or a combination thereof.
  • This application is implemented The example does not limit this. This can ensure that the target expansion unit quickly and efficiently locates the accurate current serving remote unit group.
  • the target expansion unit transmits data to the host unit through the enhanced public wireless interface; the target expansion unit transmits data to the currently serving remote unit group through the public wireless interface.
  • the target expansion unit and the remote unit group communicate through a public radio interface, that is, the target expansion unit transmits the processed downlink service data to the remote unit group to be served through the Common Public Radio Interface (CPRI) .
  • CPRI Common Public Radio Interface
  • the target extension unit and the host unit communicate through an enhanced public radio interface, that is, the target extension unit transmits the processed uplink service data back to the host unit through the Enhanced Common Public Radio Interface (eCPRI).
  • eCPRI Enhanced Common Public Radio Interface
  • the universal public radio interface is used for transmission between the expansion unit and the remote unit, which effectively reduces the design complexity and cost of the remote unit
  • the enhanced public radio interface is used for transmission between the host unit and the expansion unit. , which greatly reduces the transmission bandwidth requirements.
  • the host unit and the extension unit cooperate to complete the convergence and distribution of the uplink and downlink signals, avoiding further radio frequency merging, and limiting the rise of the receiving noise floor.
  • the embodiment of the application lowers the function of the lower physical layer When implemented in the expansion unit, the expansion unit has independent demodulation and decoding capabilities, which greatly reduces the design cost of the host unit.
  • the UE, remote unit, serving remote unit group, extension unit, etc. will be assigned a unique identifier during the above-mentioned downlink or uplink data transmission process, so as to ensure the correctness of the data transmission during the uplink and downlink data transmission. And efficiency.
  • the remote unit group has a group identity
  • the UE has a unique identity in the cell, etc.
  • the identity can be assigned according to the situation, which is not limited in this embodiment.
  • the data of the serving remote unit group and the extension unit mentioned in this application all represent the UE's upper and lower service data
  • the UE's uplink data is uploaded to the extension unit through the serving remote unit group, and then uploaded To the host unit, or, the host unit downloads the UE's downlink data through the extension unit to the serving remote unit group, and then transmits it to the UE.
  • an embodiment of the present application also provides a data transmission method. As shown in FIG. 4, the foregoing step S102 includes:
  • S301 Acquire the current load of the cell where the UE is located; the current load includes the base station load and the real-time bandwidth load of the fronthaul link.
  • the host unit obtains the current load of the cell where the UE is located, where the current load includes base station load and fronthaul link real-time bandwidth load. For example, when the current load is determined according to the base station load and the fronthaul link real-time bandwidth load, the current load can be determined separately. Set the corresponding weight, and then calculate the weighted sum to get the current load.
  • the method of the base station load and the real-time bandwidth load of the fronthaul link obtained by the host unit may be by detecting and monitoring the current service load condition of the base station and the fronthaul link, and then converting it into a load value. It may also be in other ways. Not limited.
  • the host unit determines the load value and the preset load threshold. If the load is greater than or equal to the preset load threshold, the signal transmission quality of each service remote unit group obtained in step S101 is The data is sorted from largest to smallest, and the serving remote unit group corresponding to the largest signal transmission quality data is determined as the current serving remote unit group. Because the larger the signal transmission quality data, the better the signal, so the largest signal The serving remote unit group corresponding to the transmission quality data is determined to be the current serving remote unit group, which is equivalent to overloading and insufficient remaining resources, only the current serving remote unit group with better signal transmission quality data is transmitted to ensure data integrity Normal transmission improves the UE’s service data upload performance.
  • the serving remote unit group corresponding to the signal transmission quality data greater than the preset signal value is determined as the current serving remote unit group, where the preset signal value is preset A critical value used to select data with better signal transmission quality, which is equivalent to selecting multiple sets of service remote unit groups with better signal quality under the condition that the load is small and the remaining resources are sufficient.
  • the end unit group, the multiple groups are determined according to the preset signal value, and the service remote unit group corresponding to the signal transmission quality data greater than the preset signal value can be transmitted.
  • the data transmission method provided in this embodiment determines the current serving remote unit group according to the current load of the cell.
  • the load is high, only one uplink signal of the UE needs to be uploaded to ensure that the fronthaul bandwidth of the entire cell does not overflow.
  • the UE's multi-route signal transmission can improve the uplink performance of serving remote unit groups under the overlapping coverage of edge users.
  • the host unit described in all the foregoing embodiments performs high-level physical layer processing on the processed uplink data uploaded by the target extension unit, that is, the high-level physical layer is implemented in the host unit, where High-level physical layer (PHY-H) processing, including but not limited to channel estimation, equalization, descrambling, decoding, etc.
  • High-level physical layer PHY-H
  • the data processed by the high-level physical layer is bit data.
  • FIG. 5 provides a data transmission method. This embodiment relates to the transmission of uplink data to the host unit by the target extension unit according to the uplink scheduling information of the service remote unit group to be transmitted sent by the host unit.
  • the specific process, as shown in Figure 5, the method includes:
  • S401 Receive uplink scheduling information of an edge user sent by a host unit; the edge user is a user located between multiple remote unit groups.
  • the target extension unit receives the uplink scheduling signal of the edge user sent by the host unit, and the edge user is a user located between multiple remote unit groups.
  • the uplink scheduling information carries uplink time-frequency resource information and the identifier of the currently serving remote unit group.
  • S402 Process the uplink data of the UE uploaded by the remote unit group currently serving by the edge user according to the uplink scheduling information, and upload the processed uplink data to the host unit; The load and signal transmission quality data of multiple service remote unit groups of edge users are determined.
  • the target extension unit Based on the uplink scheduling information of the edge user received in step S401, the target extension unit processes the uplink data of the UE uploaded by the currently serving remote unit group according to the uplink scheduling information, and uploads the processed uplink data to the host unit.
  • the currently serving remote unit group is determined based on the current load of the cell where the edge user is located and the signal transmission quality data of the multiple serving remote unit groups of the edge user.
  • the above-mentioned signal transmission quality data is preamble data obtained through a physical random access channel, or sounding reference signal data.
  • This embodiment provides a data transmission method.
  • the target extension unit After receiving the uplink scheduling information sent by the host unit, the target extension unit processes the uplink data of the UE uploaded by the currently serving remote unit group according to the uplink scheduling information, and uploads the processed uplink data to the host unit.
  • the current serving remote unit group is intelligently selected by the host unit based on the signal transmission quality data of the multiple serving remote unit groups of the edge user and the current load situation of the cell, different cell load conditions are determined to be transmitted.
  • Remote unit group to ensure that edge users upload the maximum data according to the actual resource capacity, which greatly improves the uplink performance of the edge users under the overlapping coverage of the remote unit group.
  • the method further includes:
  • S501 Receive downlink scheduling information and downlink data of edge users transmitted by a host unit.
  • the target extension unit receives the downlink scheduling information and downlink data of the edge user transmitted by the host unit.
  • the downlink scheduling information carries including but not limited to the downlink time-frequency resource information and the identifier of the currently serving remote unit group.
  • S502 Process the downlink data according to the downlink scheduling information, and transmit the processed downlink data to the edge user through the currently serving remote unit group.
  • the target extension unit processes the downlink data, and transmits the processed downlink data to the edge user through the currently serving remote unit group.
  • the downlink service data is data to be sent by the host unit to the edge users, such as voice data, video data, webpage data, etc., delivered by the core network.
  • the data processing of the target extension unit includes, but is not limited to, Fourier transform, channel estimation, equalization, descrambling, decoding, and RE demapping.
  • the target extension unit performs low-level physical layer processing on the data before transmitting it to the host unit or the remote unit to be transmitted.
  • the lower physical layer includes but is not limited to FFT and RE demapping processing, and the processed data may be SRS symbol data.
  • both the uplink scheduling information and the downlink scheduling information include the identity of the currently serving remote unit group.
  • the identifier of the currently serving remote unit group is used to instruct the target expansion unit to determine which remote unit group is currently serving, where the identifier can be in any form, such as numbers, letters, or a combination thereof.
  • This application is implemented The example does not limit this. This can ensure that the target expansion unit quickly and efficiently locates the accurate current serving remote unit group.
  • data transmission is performed with the host unit through an enhanced public wireless interface; data transmission is performed with the currently serving remote unit group through the public wireless interface.
  • the target expansion unit and the remote unit group are communicatively connected through a public wireless interface, that is, the target expansion unit transmits the processed downlink service data to the to-be-served remote unit group through CPRI.
  • the target extension unit and the host unit are in communication connection through an enhanced public wireless interface, that is, the target extension unit transmits the processed uplink service data back to the host unit through eCPRI.
  • This can greatly reduce the transmission bandwidth requirements.
  • the amount of uplink service data received by the host unit is only the specified amount to the remote unit group to be transmitted, thereby reducing the amount of uplink service data transmission data, thereby reducing the requirements for uplink fronthaul bandwidth .
  • the number of currently serving remote unit groups is one; if the UE is a central user, the number of currently serving remote unit groups is at least two. In addition, in one embodiment, if the UE is an edge user, the location of the UE is located among multiple remote unit groups; if the location of the UE is located at the center of a remote unit group, the UE is a central user.
  • the UE can be divided into edge users and central users. If the UE is an edge user, the location of the UE is located between multiple remote unit groups; If the location is in the center of a remote unit group, the UE is the center user. In addition, the number of remote unit groups to be transmitted corresponding to edge users and central users is different. If the UE is an edge user, the number of currently serving remote unit groups is one; if the UE is a central user, the number of currently serving remote unit groups is at least two. Specifically, the content involved in the above data transmission method can be understood in conjunction with the base station system provided below, and the two complement each other and can be referred to each other.
  • An embodiment of the present application provides a base station system, which includes: a host unit, an extension unit, and a remote unit; the host unit is connected to at least one extension unit, and each extension unit is connected to multiple remote unit groups; wherein, each remote The unit group includes at least one remote unit;
  • the host unit is used to determine whether the UE is an edge user according to the signal transmission quality data of multiple serving remote unit groups corresponding to the UE, and when the UE is an edge user, according to the current load of the cell where the UE is located and each signal transmission
  • the quality data determines the current serving remote unit group of the UE, and then transmits the UE's uplink scheduling information to the target extension unit;
  • the edge users are users located among multiple remote unit groups;
  • the target extension unit indicates the current serving remote unit
  • the uplink scheduling information is used to instruct the target expansion unit to process the uplink data of the UE uploaded by the currently serving remote unit group according to the uplink scheduling information, and upload the processed uplink data to the host unit;
  • the expansion unit Used to receive the uplink scheduling information of the edge user sent by the host unit; and process the uplink data of the UE uploaded by the currently serving remote unit group according to the uplink scheduling information, and then upload the processed uplink data to the host unit;
  • the aforementioned extension unit is also used to receive the downlink scheduling information and downlink data of the edge user transmitted by the host unit, and process the downlink data according to the downlink scheduling information and the downlink data, and pass the processed downlink data through the current service remote
  • the unit group is transmitted to the edge user.
  • the above-mentioned extension unit performs low-layer physical layer processing on both the uplink data and the downlink data.
  • an enhanced public wireless interface is used for data transmission between the host unit and the expansion unit; and a public wireless interface is used for data transmission between the expansion unit and the remote unit.
  • S01 The UE periodically sends an SRS (Souding Reference Signal, sounding reference signal) signal.
  • SRS Sounding Reference Signal
  • the remote unit receives the RF signal of the SRS and sends it to the extension unit, and the extension unit performs radio frequency combination on the received SRS radio frequency signal.
  • the number of radio frequency combinations passes through the operation and maintenance management subsystem (Operation Administration and Maintenance, OAM) sub-system.
  • OAM Operaation Administration and Maintenance
  • the system is configured.
  • the expansion unit performs PHY-L (lower physical layer) processing on the combined SRS radio frequency signal, including FFT and RE demapping, to obtain SRS symbol data.
  • the extension unit radio frequency merges the remote units to obtain multiple service remote unit groups.
  • the extension unit sends the SRS symbol data to the host unit, and carries the identifier of the service remote unit group after radio frequency combination.
  • the host unit After receiving the SRS symbol data, the host unit performs PHY-H processing, such as channel estimation, equalization, descrambling, and decoding, to obtain SRS bit data.
  • PHY-H processing such as channel estimation, equalization, descrambling, and decoding
  • the host unit demodulates the SRS symbols of multiple serving remote unit groups to identify edge UEs.
  • S06 The UE sends a scheduling request (SR) on the PUCCH channel to request the network to allocate uplink resources.
  • SR scheduling request
  • the extension unit receives the SR.
  • the scheduling request signal is carried by the PUCCH (Physical Uplink Control Channel) channel.
  • the radio frequency combination is performed, and the number of radio frequency combinations passes OAM.
  • the subsystem is configured.
  • the expansion unit performs PHY-L processing on the combined SR radio frequency signal to obtain SR PUCCH Bit data.
  • the extension unit sends the SR PUCCH Bit data to the host unit, and at the same time carries the service remote unit group identifier after radio frequency merge.
  • the host unit determines in real time whether the load of the base station and the effective bandwidth of the fronthaul link with the extension unit meet the uplink performance conditions of the edge UE.
  • the host unit issues the UE's intra-cell temporary identity, N groups of serving remote unit group identities, and time-frequency resource information to the corresponding extension unit, where the time-frequency resource information includes the UE's uplink resource allocation result, such as physical uplink sharing Time-frequency resource location information of the channel (Physical Uplink Shared Channel, PUSCH) channel.
  • the time-frequency resource information includes the UE's uplink resource allocation result, such as physical uplink sharing Time-frequency resource location information of the channel (Physical Uplink Shared Channel, PUSCH) channel.
  • PUSCH Physical Uplink Shared Channel
  • the extension unit directly transparently transmits the time-frequency resource information to the UE.
  • the UE sends uplink data on the PUSCH resource specified by the time-frequency resource information.
  • the expansion unit performs radio frequency combination after receiving the PUSCH radio frequency signal, and the number of radio frequency combinations is configured through the OAM subsystem.
  • the expansion unit performs PHY-L processing on the combined PUSCH radio frequency signal to obtain PUSCH Bit-level data.
  • the PUSCH Bit level data is sent to the host unit, and the remote unit group identifier after radio frequency merge is also carried.
  • the extension unit only needs to send the corresponding serving remote unit group and the uplink received at the corresponding PUSCH time-frequency location.
  • the data is given to the host unit.
  • the host unit may locate the UE at the overlap of the two remote unit groups.
  • the host unit issues two remote unit group identifiers to the extension unit, and the extension unit receives the two remote unit groups.
  • the uplink data is received in diversity, processed by PHY-L, and then uploaded to the host unit.
  • the expansion unit receives the N service remote unit group data requirements of the edge UE from the host unit, and performs PHY-L processing on the N service remote unit group data separately, and independently returns to the host unit. If the host unit receives multiple data from the same UE, it selects a group of data with a correct CRC check and submits it to the MAC.
  • the host unit After receiving the PUSCH symbol data, the host unit performs PHY-H processing, such as channel estimation, equalization, descrambling, decoding, etc., and finally obtains PUSCH bit data and sends it to the MAC.
  • PHY-H processing such as channel estimation, equalization, descrambling, decoding, etc.
  • the host unit adopts a diversity combining method in the channel equalization process to improve the SNR of uplink reception.
  • the host unit realizes real-time positioning of the serving remote unit group to which the UE belongs by demodulating the uplink SRS signal of the UE, and sends the current serving remote unit group identifier of the UE to the corresponding extension unit.
  • the extension unit After receiving the uplink symbol data of the corresponding UE, the extension unit only needs to upload the current serving remote unit group signal of the UE to the host unit, thereby reducing the upstream bandwidth requirement for the fronthaul.
  • the PHY-L function is submerged into the extension unit.
  • the extension unit has independent demodulation and decoding capabilities. When the host unit determines that the UE is an edge user, combined with the current cell load, only the remote transmission is to be transmitted. The data of the end unit group greatly improves the uplink performance of edge users.
  • the embodiment of the present application also provides a base station system.
  • the above-mentioned host unit includes a UE location management subsystem, an enhanced public radio interface subsystem, a scheduling subsystem, a user uplink intelligent selection subsystem, and a high-level physical layer sub-system.
  • the UE location management subsystem is used to locate the UE's service remote unit group and process the data transmitted by the physical layer subsystem in the expansion unit;
  • the enhanced public radio interface subsystem is used to pass the enhanced public The analysis and encapsulation of the data of the wireless interface specification protocol, and the expansion unit perform data transmission through the enhanced public wireless interface specification;
  • the scheduling subsystem is used to manage and schedule the air interface resources;
  • the user uplink intelligent selection subsystem is used to monitor the UE The current load of the cell and the signal transmission quality data of the multiple serving remote unit groups corresponding to the UE, to determine whether the UE is an edge user, so as to determine the remote unit group to be transmitted;
  • the high-level physical layer subsystem is used to service the UE The data undergoes high-level physical layer processing.
  • the aforementioned expansion unit includes a remote unit group management subsystem, an enhanced public wireless interface subsystem, and a low-level physical layer subsystem; wherein, the remote unit group management subsystem is used to communicate with the host The scheduling information on the unit side is used for remote unit group management of uplink service data and downlink service data; the enhanced public radio interface subsystem is used for data transmission between the host unit and the extension unit; the low-level physical layer subsystem is used for the UE The upstream and downstream data is processed at the low-level physical layer.
  • the host unit is responsible for implementing all layer functions before option 6, and the extension unit is responsible for all the physical functions between option 6 and option 8.
  • the realization of layer functions, and the remote unit is responsible for the radio frequency (RF) signal transceiver function after option8, and the layers are divided into functions.
  • RF radio frequency
  • the UE position management subsystem realizes the UE positioning function and the edge position UE identification function .
  • the UE is located at the remote unit group group level to determine the edge UE identification;
  • the subordinate user uplink intelligent selection subsystem monitors the base station load and fronthaul in real time Real-time bandwidth load of the link, based on the specified threshold, intelligently distinguishes the unique selection or independent backhaul of the uplink remote unit group of the edge UE, and controls the PHY-H to uplink demodulation/decoding of a group of DPG or more of the edge UE.
  • Group uplink DPG demodulation and decoding Group uplink DPG demodulation and decoding.
  • the host unit includes UE location management subsystem, Enhanced Common Public Radio Interface (eCPRI), scheduling subsystem, user uplink intelligent selection subsystem, and high-level physical layer sub-systems.
  • eCPRI Enhanced Common Public Radio Interface
  • OAM operation and maintenance management subsystem
  • the media access control layer subsystem Media Access Control, MAC
  • the radio link control protocol layer subsystem and the packet data convergence protocol layer subsystem (Packet Data Convergence Protocol, PDCP), Service Data Adaptation Protocol (SDAP), Layer 3 (Layer 3) and S1/NG interface subsystems.
  • OAM Opera and maintenance management subsystem
  • MAC Media Access Control
  • MAC media access control layer subsystem
  • PDCP Packet Data Convergence Protocol
  • SDAP Service Data Adaptation Protocol
  • Layer 3 Layer 3
  • S1/NG interface subsystems S1/NG interface subsystem
  • scheduling subsystem media intervention
  • the control layer subsystem the radio link control protocol layer (Radio Link Control, RLC) subsystem, the packet data convergence protocol layer subsystem, the service data adaptive protocol layer subsystem, the layer 3 subsystem and the interface subsystem all belong to the wireless interface.
  • Network access protocol stack subsystem the operation and maintenance management subsystem is used to manage all software, configuration management, fault management, and performance management; the media intervention control layer subsystem and the wireless link control protocol subsystem are used to control the wireless access network protocol stack.
  • the system and the data transmission time interval time sequence perform related data processing; specifically, the packet data convergence protocol layer subsystem is used to protect data integrity during transmission, air interface encryption, and compression of Internet Protocol address headers; services
  • the data adaptive protocol layer subsystem is used to manage the mapping between the address flow of each networking protocol and the radio bearer; the scheduling subsystem is used to manage and schedule air interface resources; the layer 3 subsystem is used to handle wireless resource control Protocol signaling, management of the radio resources of the long-term evolution system; interface subsystem, used to process the control signaling of the core network, and process the tunnel data.
  • the expansion unit includes a public wireless interface specification interface subsystem and an operation and maintenance management subsystem in addition to the above-mentioned remote unit group management subsystem, enhanced public wireless interface subsystem, and low-level physical layer (PHY-L) subsystem.
  • the low-level physical layer (PHY-L) subsystem is used to perform low-level physical layer processing on the uplink and downlink data of the UE;
  • the remote unit group management subsystem is used to perform uplink services on the scheduling information on the host unit side Remote unit group management of data and downlink service data; enhanced public radio interface specification interface subsystem for data transmission between the host unit and expansion unit; common radio interface specification interface (CPRI) subsystem for remote unit and
  • the expansion unit transmits data.
  • PHY-H functions include channel estimation/equalization, layer mapping, modulation and demodulation, scrambling/descrambling, rate matching, codec functions, and PHY-L functions include IFFT/FFT, CP addition/removal, RE mapping/ Demapping and precoding functions.
  • the remote unit includes a CPRI interface subsystem, an RF subsystem, and an OAM subsystem.
  • the RF subsystem provides radio frequency signal processing (such as analog-to-digital conversion), and transmits and receives signals through an antenna;
  • the CPRI interface subsystem implements CPRI-based communication with CP IQ data streaming.
  • the host unit can also be divided into a centralized unit (CU) and a distributed unit (DU).
  • the CU is responsible for implementing PDCP, SDAP, and radio resource control (Radio Resource Control, RRC) layers.
  • Protocol function: DU is responsible for implementing RLC and MAC protocol functions. Among them, CU and DU can be deployed together or separately.
  • the embodiment of the present application also provides a base station system.
  • the location of the UE is located between multiple remote unit groups; if the location of the UE is located at the center of a remote unit group, then The UE is the central user.
  • the UE and the serving remote unit group are in a different positional relationship, and the UE is divided into different users, that is, edge users or central users.
  • edge users or central users.
  • FIG. 11 four scenarios of different UE positions are provided:
  • UE0 is located at the center of a remote unit group (DPG1), and it is determined that it does not belong to the edge UE;
  • DPG1 remote unit group
  • UE1 is located between two remote unit groups (DPG1 and DPG2), and the two remote unit groups (DPG1 and DPG2) are connected to the same extension unit (CP) and belong to edge UEs;
  • UE2 is located between the two remote unit groups (DPG2 and DPG3).
  • the two remote unit groups (DPG2 and DPG3) are connected to different extension units (CP), and the extension units (CP) are at a level
  • the connection relationship belongs to the edge UE;
  • UE3 is located between the two remote unit groups (DPG3 and DPG4).
  • the two remote unit groups (DPG3 and DPG4) are connected to different extension units (CP).
  • the extension units (CP) are non-level The association relationship belongs to the edge UE.
  • a computer device is provided.
  • the computer device may be a terminal, and its internal structure diagram may be as shown in FIG. 12.
  • the computer equipment includes a processor, a memory, a network interface, a display screen and an input device connected through a system bus.
  • the processor of the computer device is used to provide calculation and control capabilities.
  • the memory of the computer device includes a non-volatile storage medium and an internal memory.
  • the non-volatile storage medium stores an operating system and a computer program.
  • the internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium.
  • the network interface of the computer device is used to communicate with an external terminal through a network connection.
  • the computer program is executed by the processor to realize a data transmission method.
  • the display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen
  • the input device of the computer equipment can be a touch layer covered on the display screen, or it can be a button, a trackball or a touchpad set on the housing of the computer equipment , It can also be an external keyboard, touchpad, or mouse.
  • FIG. 12 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied.
  • the specific computer device may Including more or fewer parts than shown in the figure, or combining some parts, or having a different arrangement of parts.
  • a computer device including a memory and a processor, and a computer program is stored in the memory, and the processor implements the following steps when the processor executes the computer program:
  • the UE determines whether the UE is an edge user; the edge user is a user located between multiple remote unit groups;
  • the UE is an edge user, determine the current serving remote unit group of the UE according to the current load of the cell where the UE is located and various signal transmission quality data;
  • the uplink scheduling information of the UE is transmitted to the target extension unit; the target extension unit indicates the extension unit connected to the currently serving remote unit group; the uplink scheduling information is used to instruct the target extension unit to upload the currently serving remote unit group according to the uplink scheduling information
  • the uplink data of the UE is processed, and the processed uplink data is uploaded to the host unit.
  • the edge user is the user located between multiple remote unit groups;
  • the uplink scheduling information process the uplink data of the UE uploaded by the current serving remote unit group of the edge user, and upload the processed uplink data to the host unit; the current serving remote unit group is based on the current load of the cell where the edge user is located
  • the service remote unit group of the edge user is determined by the signal transmission quality data of the multiple service remote unit groups of the edge user.
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:
  • the UE determines whether the UE is an edge user; the edge user is a user located between multiple remote unit groups;
  • the UE is an edge user, determine the current serving remote unit group of the UE according to the current load of the cell where the UE is located and various signal transmission quality data;
  • the uplink scheduling information of the UE is transmitted to the target extension unit; the target extension unit indicates the extension unit connected to the currently serving remote unit group; the uplink scheduling information is used to instruct the target extension unit to upload the currently serving remote unit group according to the uplink scheduling information
  • the uplink data of the UE is processed, and the processed uplink data is uploaded to the host unit.
  • the edge user is the user located between multiple remote unit groups;
  • the uplink scheduling information process the uplink data of the UE uploaded by the current serving remote unit group of the edge user, and upload the processed uplink data to the host unit; the current serving remote unit group is based on the current load of the cell where the edge user is located
  • the service remote unit group of the edge user is determined by the signal transmission quality data of the multiple service remote unit groups of the edge user.
  • Non-volatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory.
  • Volatile memory may include random access memory (RAM) or external cache memory.
  • RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Channel (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

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Abstract

La présente invention porte sur un procédé et un système de transmission de données, sur un dispositif informatique, et sur un support d'informations. Une unité hôte utilise des données de qualité d'émission de signaux et la charge de cellule actuelle d'une pluralité de groupes d'unités distantes de services correspondant à l'UE pour achever la sélection intelligente d'un groupe d'unités à distance à transmettre à l'UE ; et après qu'une unité d'extension cible a traité un signal de données en liaison montante du groupe d'unités à distance sélectionné, l'unité d'extension cible le renvoie à l'unité hôte. Selon le procédé selon l'invention, puisque l'unité hôte met en œuvre la sélection intelligente d'un groupe d'unités à distance de services en liaison montante de l'UE, différents groupes d'unités à distance à retransmettre sont déterminés dans différents cas de charge de cellule, de manière à assurer qu'un utilisateur périphérique téléverse des données maximales en fonction d'une capacité de ressources réelle, améliorant ainsi grandement la performance en liaison montante de l'utilisateur périphérique sous la couverture superposée de groupes d'unités à distance.
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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111147220B (zh) * 2019-12-27 2021-09-03 京信网络系统股份有限公司 Srs传输方法、装置、设备、系统和存储介质
CN111314043A (zh) * 2020-03-20 2020-06-19 太仓市同维电子有限公司 一种分布式室分5g系统中远端单元分组控制调度器及调度覆盖方法
CN111491391B (zh) * 2020-04-09 2022-04-01 京信网络系统股份有限公司 小区调度方法、电子设备、存储介质及分布式天线系统
CN111542065B (zh) * 2020-05-11 2021-02-05 四川创智联恒科技有限公司 一种5g网络多rru共小区资源复用的方法
CN111615074B (zh) * 2020-05-12 2021-09-24 京信网络系统股份有限公司 室内分布式系统、数据传输方法和存储介质
CN113260074B (zh) * 2021-07-15 2022-04-22 成都爱瑞无线科技有限公司 上行数据处理方法、系统、装置、设备及存储介质
CN113709877A (zh) * 2021-08-12 2021-11-26 联想(北京)有限公司 一种信息处理方法、装置、通信设备和存储介质
CN113825243B (zh) * 2021-11-23 2022-02-08 成都爱瑞无线科技有限公司 上行数据处理方法、系统、装置及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120224541A1 (en) * 2011-03-02 2012-09-06 Hitachi, Ltd. Clustering method of mobile communication and remote radio head thereof
CN103813462A (zh) * 2011-09-19 2014-05-21 华为技术有限公司 一种多射频拉远单元共小区的资源分配方法及装置
CN103828422A (zh) * 2012-12-31 2014-05-28 华为技术有限公司 负载均衡的方法和网络控制节点
CN110290533A (zh) * 2019-06-24 2019-09-27 京信通信系统（中国）有限公司 数据传输方法、系统、计算机设备和存储介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102238607A (zh) * 2010-04-29 2011-11-09 鸿富锦精密工业（深圳）有限公司 基站信号传输系统及方法
US20150181615A1 (en) * 2013-12-23 2015-06-25 Adc Telecommunications, Inc. Systems and methods for capacity management for a distributed antenna system
CN103841582B (zh) * 2013-12-30 2017-11-21 上海华为技术有限公司 一种控制方法和装置
CN104168595B (zh) * 2014-08-27 2017-10-10 中国联合网络通信集团有限公司 一种多点协作传输方法、装置及系统
CN108135007A (zh) * 2018-02-11 2018-06-08 京信通信系统（中国）有限公司 一种通信的方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120224541A1 (en) * 2011-03-02 2012-09-06 Hitachi, Ltd. Clustering method of mobile communication and remote radio head thereof
CN103813462A (zh) * 2011-09-19 2014-05-21 华为技术有限公司 一种多射频拉远单元共小区的资源分配方法及装置
CN103828422A (zh) * 2012-12-31 2014-05-28 华为技术有限公司 负载均衡的方法和网络控制节点
CN110290533A (zh) * 2019-06-24 2019-09-27 京信通信系统（中国）有限公司 数据传输方法、系统、计算机设备和存储介质

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