Patent Application
20230412293
The subject matter herein generally relates to wireless communication, to a field of 5G communications, and especially relates to a method for enhancing uplink and downlink coverage between a base station and a user terminal, and an electronic device.
In existing 5G communication methods, in order to solve a problem of uplink and downlink coverage of 5G signals being limited, a user terminal farther away from base station adopts low-frequency transmission of uplink data and high-frequency transmission of downlink data to enhance uplink and downlink coverage. A user terminal nearer the base stations can adopt high-frequency transmission of both uplink and downlink data. However, when any user terminal transmits uplink data at low frequency, although the uplink and downlink coverage may be enhanced, the slowed uplink transmission rate may still affect the user's internet experience.
Implementations of the present disclosure will now be described, by way of embodiment, with reference to the attached figures.
It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure.
The present disclosure, including the accompanying drawings, is illustrated by way of examples and not by way of limitation. Several definitions that apply throughout this disclosure will now be presented. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one”.
The term “module”, as used herein, refers to logic embodied in hardware or firmware, or to a collection of software instructions, written in a programming language, such as, Java, C, or assembly. One or more software instructions in the modules can be embedded in firmware, such as in an EPROM. The modules described herein can be implemented as either software and/or hardware modules and can be stored in any type of non-transitory computer-readable medium or other storage device. Some non-limiting examples of non-transitory computer-readable media include CDs, DVDs, BLU-RAY, flash memory, and hard disk drives. The term “comprising” means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in a so-described combination, group, series, and the like.
At block 101, when detecting that data is to be transmitted, the user terminal 1 sends an uplink scheduling request and a location of the user terminal 1 to the base station 2.
In one embodiment, the uplink scheduling request includes Channel State Information (CSI) and a Sounding Reference Signal (SRS). In one embodiment, the CSI includes channel characteristic information. For example, the CSI includes information as to signal scattering and attenuation of signal energy with distance.
In one embodiment, the user terminal 1 obtains the location of the user terminal 1 according to a Global Positioning System (GPS) positioning device set in the user terminal 1. When detecting that data needs to be transmitted, user terminal 1 sends the location of the user terminal 1 and the uplink scheduling request to the base station 2.
At block 102, in response to the uplink scheduling request, the base station 2 determines a penetration loss level of the position.
In one embodiment, a building-based penetration loss exists in any uplink or downlink between the user terminal 1 and the base station 2. The penetration loss of the building is the attenuation of signals transmitted by the user terminal 1 and the base station 2 when the signals penetrate an outer structure of a building. The penetration loss affects an uplink coverage and a downlink coverage between the user terminal 1 and the base station 2. In one embodiment, the penetration loss of the building is equal to a difference between a first median of field strength outside the building and a second median of field strength inside the building. The penetration loss of the building is related to a structure of the building, types and sizes of doors and windows of the building, and height of the building. In one embodiment, the higher the frequency of signals used in the uplink or downlink, the greater will be the penetration loss.
In one embodiment, the base station 2 determining a penetration loss level of the position includes: the base station 2 determining whether a distance between the user terminal 1 and the base station 2 exceeds a preset distance range according to the location of the user terminal 1; when the distance between the user terminal 1 and the base station 2 exceeds the preset distance range, the base station 2 querying a first relationship table 20 to determine the penetration loss level of the position, where the first relationship table 20 defining relationships between different locations and different levels of penetration loss; when the distance between the user terminal 1 and the base station 2 is within the preset distance range, the penetration loss level being placed at a preset level.
In one embodiment, when the user terminal 1 is located in surroundings of a building with a metal shell structure or a special metal frame structure and in a metropolitan area, the base station 2 determines that the penetration loss level corresponding to such location is a first loss level. When the user terminal 1 is located in the surroundings of a building with a reinforced concrete structure and in the metropolitan area, the base station 2 determines that the penetration loss level corresponding to the position is a second loss level. When the user terminal 1 is located in the surroundings of a building with reinforced concrete structure and in a medium-sized urban area, the base station 2 determines that the penetration loss level corresponding to the location is a third loss level. When the user terminal 1 is located in an empty area, the base station 2 determines that the penetration loss level corresponding to the location is a fourth loss level. In one embodiment, the base station 2 stores a dot matrix map or an electronic map recording the location of the buildings within its coverage. When the distance between the user terminal 1 and the base station 2 exceeds the preset distance range, the base station 2 queries the dot matrix map or the electronic map according to the location of the user terminal 1 to determine the surroundings of the position of the user terminal 1. The first relationship table 20 is also queried as to the surroundings of the user terminal 1 to determine the penetration loss level corresponding to the position. In one embodiment, a penetration loss value of the first loss level is greater than that of the second loss level, the penetration loss value of the second loss level is greater than that of the third loss level, and the penetration loss value of the third loss level is greater than that of the fourth loss level. In one embodiment, the preset level is the same as the fourth loss level.
At block 103, the base station 2 determines a transmission frequency of the uplink according to the penetration loss level, and generates a scheduling strategy including the transmission frequency of the uplink.
In one embodiment, the base station 2 determining the transmission frequency of the uplink according to the penetration loss level includes: the base station 2 querying a second relationship table 30 according to the penetration loss level to determine the transmission frequency of the uplink corresponding to the penetration loss level, where the second relationship table 30 defines penetration loss levels and respective transmission frequencies of the uplink.
In one embodiment, when the penetration loss level is the first loss level, the base station 2 determines that the transmission frequency of the uplink corresponding to the first loss level is 1.8 GHz. When the penetration loss level is the second loss level, the base station 2 determines that the transmission frequency of the uplink corresponding to the second loss level is between 1.8 GHz and 2.3 GHz. When the penetration loss level is the third loss level, the base station 2 determines that the transmission frequency of the uplink corresponding to the third loss level is between 2.3 GHz and 3.5 GHz. When the penetration loss level is the fourth loss level or the preset level, the base station 2 determines that the transmission frequency of the uplink corresponding to the fourth loss level or the preset level is 3.5 GHz.
At block 104, the base station 2 sends the scheduling strategy including the transmission frequency of the uplink to the user terminal 1.
At block 105, the user terminal 1 transmits the data to be transmitted to the base station 2 according to the transmission frequency of the uplink.
In one embodiment, the method further includes: the base station 2 determining a reception frequency of the downlink according to the uplink scheduling request and sending the reception frequency of the downlink to the user terminal 1; and the user terminal 1 receiving data transmitted by the base station 2 according to the reception frequency of the downlink. In one embodiment, the reception frequency is 3.5 GHz.
The base station 2 in the present application can determine the penetration loss level of the surroundings the user terminal 1 according to the location of the user terminal 1, and can determine the transmission frequency of the uplink according to the level of penetration loss. The user terminal 1 sends the data to be transmitted to the base station 2 according to the uplink transmission frequency determined by the base station 2, so as to enhance the uplink and downlink coverage of the signal, and avoid the problem of uplink and downlink coverage being unbalanced caused by a long distance between the user terminal 1 and the base station 2. Furthermore, the user terminal 1 can select appropriate transmission frequency of the uplink to transmit data according to the location of the user terminal 1, which improves the data transmission rate.
In one embodiment, a computer storage medium in which computer instructions are stored is also disclosed. When the computer instructions are executed on the electronic device 10, the electronic device 10 is caused to execute the above related steps of the method to realize the method for enhancing uplink and downlink coverage in above embodiment.
In one embodiment, the present application also provides a computer program product. When the computer program product is executed on the computer, the computer is caused to perform the above related steps of the method to realize the method.
In one embodiment, the present application also provides a device, which can be a chip, component or module, and the device can include a connected processor and a storage. The storage is used to store computer execution instructions. When the device is running, the processor can execute the computer execution instructions stored in the storage to enable the chip to execute the method for enhancing uplink and downlink coverage in the above embodiments.
The exemplary embodiments shown and described above are only examples. Even though numerous characteristics and advantages of the present disclosure have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, including in matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202110341194.1 | Mar 2021 | CN | national |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 17566238 | Dec 2021 | US |
| Child | 18242826 | US |
