CN112804751A - Uplink coverage lifting method and device, storage medium and terminal equipment - Google Patents
Uplink coverage lifting method and device, storage medium and terminal equipment Download PDFInfo
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- H—ELECTRICITY
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- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
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- 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
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Abstract
The disclosure relates to an uplink coverage lifting method and device, a storage medium and a terminal device. The uplink coverage lifting method comprises the following steps: configuring an uplink basic transmission unit, wherein the number of frequency domain subcarriers of the uplink basic transmission unit is less than 12; and carrying out uplink data transmission according to the uplink basic transmission unit. The method and the device reduce the number of frequency domain subcarriers by defining a new uplink basic transmission unit, thereby improving the uplink coverage performance.
Description
Technical Field
The present disclosure relates to the field of wireless communications, and in particular, to an uplink coverage improving method and apparatus, a storage medium, and a terminal device.
Background
Telecommunication operators 4G adopt a 1.8GHz LTE (Long Term Evolution of universal mobile telecommunications technology) FDD (Frequency Division duplex) system, and 5G adopt a 3.5GHz NR (New Radio, New air interface) TDD (Time Division duplex) system. The path loss of the 3.5GHz frequency is averagely 7-9dB higher than that of the 1.8GHz frequency. The TDD frame structure with 2.5ms double period is adopted, and the uplink coverage performance is 5.2dB lower than that of FDD. Theoretical analysis and external field tests show that the performance of 3.5GHz NR in an outdoor scene is better than that of 1.8GHz LTE.
Disclosure of Invention
The inventor finds out through research that: in an outdoor coverage indoor scene, since the path loss and the penetration loss of 3.5GHz are higher than 1.8GHz, theoretical analysis and external field tests show that the 3.5GHz NR only has indoor uplink shallow coverage capability, and the uplink deep coverage performance is worse than that of 1.8GHz LTE. Therefore, the 3.5GHz NR uplink coverage needs to be improved.
In view of at least one of the above technical problems, the present disclosure provides an uplink coverage improving method and apparatus, a storage medium, and a terminal device, which can improve uplink coverage capability of 3.5GHz NR.
According to an aspect of the present disclosure, there is provided an uplink coverage lifting method, including:
configuring an uplink basic transmission unit, wherein the number of frequency domain subcarriers of the uplink basic transmission unit is less than 12;
and carrying out uplink data transmission according to the uplink basic transmission unit.
In some embodiments of the present disclosure, the number of frequency domain subcarriers of the uplink basic transmission unit is K, where K is a natural number greater than 0 and less than 12.
In some embodiments of the present disclosure, the frequency domain of the uplink basic transmission unit is
And each resource block.
In some embodiments of the present disclosure, the time domain of the uplink basic transmission unit is 1 timeslot, and the time domain of the uplink basic transmission unit is composed of 14 symbols.
In some embodiments of the present disclosure, the time domain of the uplink basic transmission unit includes a sub-slot, and the time domain of the uplink basic transmission unit is composed of 1 to 13 symbols.
In some embodiments of the present disclosure, the uplink coverage lifting method further includes:
and aggregating the plurality of uplink basic transmission units.
In some embodiments of the present disclosure, in the case that N uplink basic transmission units are aggregated, the frequency domain of the aggregated uplink basic transmission units is
The number of frequency domain subcarriers is K, wherein K is a natural number which is more than 0 and less than 12; the time domain of the uplink basic transmission unit after aggregation is N time slot aggregation, the time domain of the uplink basic transmission unit after aggregation includes 14 × N symbols, and N is a natural number greater than 1.
In some embodiments of the present disclosure, the uplink coverage lifting method further includes:
under the condition of multiplexing M users, the uplink basic transmission units of the M users are in the frequency domain
And each resource block, wherein M is a natural number greater than 1.
According to another aspect of the present disclosure, there is provided an uplink coverage lifting device, comprising:
a basic unit configuration module, configured to configure an uplink basic transmission unit, where the number of frequency domain subcarriers of the uplink basic transmission unit is less than 12;
and the uplink data transmission module is used for transmitting uplink data according to the uplink basic transmission unit.
In some embodiments of the present disclosure, the uplink coverage lifting device is configured to perform an operation for implementing the uplink coverage lifting method according to any of the embodiments.
According to another aspect of the present disclosure, there is provided an uplink coverage lifting device, comprising:
a memory to store instructions;
a processor configured to execute the instructions to enable the uplink coverage lifting apparatus to perform operations for implementing the uplink coverage lifting method according to any of the above embodiments.
According to another aspect of the present disclosure, there is provided a terminal device including the uplink coverage lifting apparatus according to any of the above embodiments.
According to another aspect of the present disclosure, a computer-readable storage medium is provided, where the computer-readable storage medium stores computer instructions, and the instructions, when executed by a processor, implement the uplink coverage lifting method according to any of the above embodiments.
The method and the device reduce the number of frequency domain subcarriers by defining a new uplink basic transmission unit, thereby improving the uplink coverage performance.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings 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 creative efforts.
Fig. 1 is a schematic diagram of some embodiments of voice services.
Fig. 2 is a diagram of an uplink basic transmission unit defined by the NR protocol.
Fig. 3 is a schematic diagram of some embodiments of an uplink coverage enhancement method of the present disclosure.
Fig. 4 is a diagram of a newly defined uplink basic transmission unit in some embodiments of the present disclosure.
Fig. 5 is a diagram illustrating a newly defined uplink basic transmission unit in case of multiplexing two users according to some embodiments of the present disclosure.
Fig. 6 is a schematic diagram of aggregation of two new uplink basic transmission units in case of multiplexing two users according to some embodiments of the present disclosure.
Fig. 7 is a schematic view of some embodiments of an uplink coverage enhancement device of the present disclosure.
Fig. 8 is a schematic view of additional embodiments of an uplink coverage enhancement device of the present disclosure.
Detailed Description
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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. 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.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The inventor finds out through research that: for voice services, during a talk burst, a voice packet is generated every 20ms and needs to be transmitted, and each packet needs to be transmitted within 50 ms. Fig. 1 is a schematic diagram of some embodiments of voice services. The silent period in fig. 1 is the quiet period.
Fig. 2 is a diagram of an uplink basic transmission unit defined by the NR protocol. As shown in fig. 2, the NR protocol defines an uplink basic transmission unit:
time domain: 1 slot, consisting of 14 symbols; or mini-slot, consisting of 1-13 symbols.
Frequency domain: 1 RB (Resource Block) consisting of 12 subcarriers.
The inventor finds out through research that: in a place with poor uplink coverage, such as an indoor scenario, due to the limited terminal power, the power spectral density of the signal in the frequency domain is reduced by using too much resources in the frequency domain, thereby affecting the uplink coverage.
In view of at least one of the above technical problems, the present disclosure provides an uplink coverage lifting method and apparatus, a storage medium, and a terminal device, and the present disclosure is described below with specific embodiments.
Fig. 3 is a schematic diagram of some embodiments of an uplink coverage enhancement method of the present disclosure. Preferably, this embodiment may be executed by the uplink coverage lifting apparatus or the terminal device of the present disclosure. The method comprises the following steps:
and step 31, configuring an uplink basic transmission unit, wherein the number of frequency domain subcarriers of the uplink basic transmission unit is less than 12.
In some embodiments of the present disclosure, the number of frequency domain subcarriers of the uplink basic transmission unit may be K, where K is a natural number greater than 0 and less than 12.
In some embodiments of the present disclosure, the frequency domain of the uplink basic transmission unit may be
And each resource block.
In some embodiments of the present disclosure, the number of frequency domain subcarriers of the uplink basic transmission unit may be 6.
In some embodiments of the present disclosure, the frequency domain of the uplink basic transmission unit may be half a resource block.
In some embodiments of the present disclosure, the time domain of the uplink basic transmission unit may be 1 slot, and the time domain of the uplink basic transmission unit may be composed of 14 symbols.
In some embodiments of the present disclosure, the time domain of the uplink basic transmission unit may include a sub-slot, and the time domain of the uplink basic transmission unit may be composed of 1 to 13 symbols.
Fig. 4 is a diagram of a newly defined uplink basic transmission unit in some embodiments of the present disclosure. As shown in fig. 4, in the above embodiment of the present disclosure, the time domain of the uplink basic transmission unit is 1 timeslot, and the time domain of the uplink basic transmission unit is composed of 14 symbols; the frequency domain of the uplink basic transmission unit is half of a resource block, and the number of the frequency domain subcarriers of the uplink basic transmission unit is 6.
And step 32, performing uplink data transmission according to the uplink basic transmission unit.
Based on the uplink coverage improving method provided by the embodiment of the disclosure, the number of frequency domain subcarriers is reduced and the frequency domain power spectral density of a signal is improved by defining a new uplink basic transmission unit, so that the uplink coverage performance is improved.
In some embodiments of the present disclosure, the uplink coverage lifting method may further include: under the condition of multiplexing M users, the uplink basic transmission units of the M users are in the frequency domain
And each resource block, wherein M is a natural number greater than 1.
The embodiment of the present disclosure can improve the uplink coverage performance of the voice service.
In some embodiments of the present disclosure, the uplink coverage lifting method may further include: under the condition that the frequency domain of the uplink basic transmission unit of each user is two-user multiplexing of half resource block, the uplink basic transmission units of the two users occupy one resource block in the frequency domain.
Fig. 5 is a diagram illustrating a newly defined uplink basic transmission unit in case of multiplexing two users according to some embodiments of the present disclosure.
For each user (e.g., the upper user or the lower user in fig. 5), in the time domain, the following is: 1 slot, consisting of 14 symbols; in the frequency domain: half resource block RB, consisting of 6 subcarriers.
As shown in fig. 5, when two users are multiplexed, the uplink basic transmission units of the two users occupy one resource block in the frequency domain.
In some embodiments of the present disclosure, the uplink coverage lifting method may further include: and aggregating the plurality of uplink basic transmission units.
In some embodiments of the present disclosure, in the case that N uplink basic transmission units are aggregated, the frequency domain of the aggregated uplink basic transmission units is
The number of frequency domain subcarriers is K, wherein K is a natural number which is more than 0 and less than 12; the time domain of the uplink basic transmission unit after aggregation is N time slot aggregation, the time domain of the uplink basic transmission unit after aggregation includes 14 × N symbols, and N is a natural number greater than 1.
Fig. 6 is a schematic diagram of aggregation of two new uplink basic transmission units in case of multiplexing two users according to some embodiments of the present disclosure.
For each user (e.g., the upper user or the lower user in fig. 6), after two new uplink basic transmission units are aggregated, in the time domain, they are: 2 slot aggregation, consisting of 28 symbols; in the frequency domain: half resource block RB, consisting of 6 subcarriers.
As shown in fig. 6, when two users are multiplexed, the uplink basic transmission units of the two users occupy one resource block in the frequency domain.
The above embodiments of the present disclosure may be applicable to the technical field of wireless communication, and in particular, may be applicable to the 5G field.
Fig. 7 is a schematic view of some embodiments of an uplink coverage enhancement device of the present disclosure. As shown in fig. 7, the uplink coverage enhancement apparatus of the present disclosure may include a base unit configuration module 71 and an uplink data transmission module 72, where:
a basic unit configuring module 71, configured to configure an uplink basic transmission unit, where the number of frequency domain subcarriers of the uplink basic transmission unit is less than 12.
In some embodiments of the present disclosure, the number of frequency domain subcarriers of the uplink basic transmission unit may be K, where K is a natural number greater than 0 and less than 12.
In some embodiments of the present disclosure, the frequency domain of the uplink basic transmission unit may be
And each resource block.
In some embodiments of the present disclosure, the number of frequency domain subcarriers of the uplink basic transmission unit may be 6.
In some embodiments of the present disclosure, the frequency domain of the uplink basic transmission unit may be half a resource block.
In some embodiments of the present disclosure, the time domain of the uplink basic transmission unit may be 1 slot, and the time domain of the uplink basic transmission unit may be composed of 14 symbols.
In some embodiments of the present disclosure, the time domain of the uplink basic transmission unit may include a sub-slot, and the time domain of the uplink basic transmission unit may be composed of 1 to 13 symbols.
An uplink data transmission module 72, configured to perform uplink data transmission according to the uplink basic transmission unit.
In some embodiments of the present disclosure, the uplink coverage enhancement device may also be configured to aggregate a plurality of uplink basic transmission units.
In some embodiments of the present disclosure, in the case that N uplink basic transmission units are aggregated, the frequency domain of the aggregated uplink basic transmission units is
The number of frequency domain subcarriers is K, wherein K is a natural number which is more than 0 and less than 12; the time domain of the uplink basic transmission unit after aggregation is N time slot aggregation, the time domain of the uplink basic transmission unit after aggregation includes 14 × N symbols, and N is a natural number greater than 1.
In some embodiments of the present disclosure, the upstream coverage lifting device may also be used for M usersUnder the condition of user multiplexing, setting the uplink basic transmission units of M users in a frequency domain
And each resource block, wherein M is a natural number greater than 1.
In some embodiments of the present disclosure, the uplink coverage improving apparatus may be further configured to set the uplink basic transmission units of two users to be one resource block in the frequency domain, in a case that the frequency domain of the uplink basic transmission unit of each user is two users multiplexed by half of the resource block.
In some embodiments of the present disclosure, the uplink coverage lifting device is configured to perform operations for implementing the uplink coverage lifting method according to any of the embodiments described above (for example, any of fig. 3 to 6).
Based on the uplink coverage improving device provided by the embodiment of the disclosure, the number of frequency domain subcarriers is reduced and the frequency domain power spectral density of a signal is improved by defining a new uplink basic transmission unit, so that the uplink coverage performance is improved.
The above-described embodiments of the present disclosure may aggregate a plurality of newly defined uplink basic transmission units.
Fig. 8 is a schematic view of additional embodiments of an uplink coverage enhancement device of the present disclosure. As shown in fig. 8, the uplink coverage lifting apparatus of the present disclosure may include a memory 81 and a processor 82, wherein:
a memory 81 for storing instructions.
A processor 82, configured to execute the instructions, so that the uplink coverage lifting apparatus performs operations of implementing the uplink coverage lifting method according to any of the embodiments described above (for example, any of fig. 3 to fig. 6).
The embodiment of the present disclosure can improve the uplink coverage performance of the voice service.
According to another aspect of the present disclosure, there is provided a terminal device including the uplink coverage lifting apparatus according to any one of the embodiments (for example, fig. 7 or fig. 8) above.
Based on the terminal device provided by the above embodiment of the present disclosure, by defining a new uplink basic transmission unit, the number of frequency domain subcarriers is reduced, and the frequency domain power spectral density of a signal is improved, thereby improving the uplink coverage performance.
The above-described embodiments of the present disclosure may aggregate a plurality of newly defined uplink basic transmission units. The embodiment of the present disclosure can improve the uplink coverage performance of the voice service.
According to another aspect of the present disclosure, a computer-readable storage medium is provided, where the computer-readable storage medium stores computer instructions, and the instructions, when executed by a processor, implement the uplink coverage lifting method according to any of the above embodiments (for example, any of fig. 3 to 6).
Based on the computer-readable storage medium provided by the above-mentioned embodiment of the present disclosure, by defining a new uplink basic transmission unit, the number of frequency domain subcarriers is reduced, and the frequency domain power spectral density of a signal is improved, thereby improving the uplink coverage performance.
The above-described embodiments of the present disclosure may aggregate a plurality of newly defined uplink basic transmission units. The embodiment of the present disclosure can improve the uplink coverage performance of the voice service.
The upstream coverage enhancement apparatus described above may be implemented as a general purpose processor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any suitable combination thereof, for performing the functions described herein.
Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware to implement the above embodiments, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk, an optical disk, or the like.
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 (11)
1. An uplink coverage enhancement method, comprising:
configuring an uplink basic transmission unit, wherein the number of frequency domain subcarriers of the uplink basic transmission unit is less than 12;
and carrying out uplink data transmission according to the uplink basic transmission unit.
2. The uplink coverage enhancement method of claim 2,
the number of frequency domain subcarriers of the uplink basic transmission unit is K, wherein K is a natural number which is greater than 0 and less than 12.
3. The uplink coverage enhancement method of claim 1,
the frequency domain of the uplink basic transmission unit is
And each resource block.
4. The uplink coverage enhancement method according to any of claims 1 to 3,
the time domain of the uplink basic transmission unit is 1 time slot, and the time domain of the uplink basic transmission unit consists of 14 symbols;
or the like, or, alternatively,
the time domain of the uplink basic transmission unit comprises sub-slots, and the time domain of the uplink basic transmission unit consists of 1 to 13 symbols.
5. The uplink coverage enhancement method according to any one of claims 1 to 3, further comprising:
and aggregating the plurality of uplink basic transmission units.
6. The uplink coverage enhancement method of claim 5,
under the condition that N uplink basic transmission units are aggregated, the frequency domain of the aggregated uplink basic transmission units is
The number of frequency domain subcarriers is K, wherein K is a natural number which is more than 0 and less than 12; the time domain of the uplink basic transmission unit after aggregation is N time slot aggregation, the time domain of the uplink basic transmission unit after aggregation includes 14 × N symbols, and N is a natural number greater than 1.
7. The uplink coverage enhancement method according to claim 2 or 3, further comprising:
under the condition of multiplexing M users, the uplink basic transmission units of the M users are in the frequency domain
And each resource block, wherein M is a natural number greater than 1.
8. An upward coverage enhancement device, comprising:
a basic unit configuration module, configured to configure an uplink basic transmission unit, where the number of frequency domain subcarriers of the uplink basic transmission unit is less than 12;
the uplink data transmission module is used for transmitting uplink data according to the uplink basic transmission unit;
wherein the uplink coverage lifting device is configured to perform an operation for implementing the uplink coverage lifting method according to any one of claims 1 to 7.
9. An upward coverage enhancement device, comprising:
a memory to store instructions;
a processor configured to execute the instructions to cause the uplink coverage lifting device to perform operations to implement the uplink coverage lifting method of any of claims 1-7.
10. A terminal equipment, characterized in that it comprises an uplink coverage enhancement device according to claim 8 or 9.
11. A computer-readable storage medium storing computer instructions which, when executed by a processor, implement the uplink coverage enhancement method of any one of claims 1-7.
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| CN105898872A (en) * | 2016-03-31 | 2016-08-24 | 电信科学技术研究院 | Uplink transmission method and device |
| CN106961408A (en) * | 2016-01-11 | 2017-07-18 | 中兴通讯股份有限公司 | A kind of uplink signal sending method and device |
| CN107078990A (en) * | 2014-11-07 | 2017-08-18 | 联发科技（新加坡）私人有限公司 | The method and device of resource allocation |
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Patent Citations (4)
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| CN101621846A (en) * | 2008-07-01 | 2010-01-06 | 中兴通讯股份有限公司 | Frequency spectrum resource classification and classifying method |
| CN107078990A (en) * | 2014-11-07 | 2017-08-18 | 联发科技（新加坡）私人有限公司 | The method and device of resource allocation |
| CN106961408A (en) * | 2016-01-11 | 2017-07-18 | 中兴通讯股份有限公司 | A kind of uplink signal sending method and device |
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Application publication date: 20210514 |