CN107295649B - Information transmission method and related device - Google Patents

Information transmission method and related device Download PDF

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Publication number
CN107295649B
CN107295649B CN201610200286.7A CN201610200286A CN107295649B CN 107295649 B CN107295649 B CN 107295649B CN 201610200286 A CN201610200286 A CN 201610200286A CN 107295649 B CN107295649 B CN 107295649B
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guard interval
serving cell
configuration
indication information
period
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CN107295649A (en
Inventor
成艳
薛丽霞
张旭
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201610200286.7A priority Critical patent/CN107295649B/en
Priority to PCT/CN2017/076646 priority patent/WO2017167011A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1221—Wireless traffic scheduling based on age of data to be sent

Abstract

The application discloses an information transmission method and a related device. The method comprises the following steps: the user equipment determines the subcarrier spacing of the serving cell; the user equipment determines the configuration of the guard interval of the service cell according to the subcarrier interval of the service cell; the user equipment determines the frame structure of the service cell according to the configuration of the guard interval of the service cell; and the user equipment sends information or receives information on the service cell according to the frame structure of the service cell. The application provides the configuration of the GP of the self-contained subframe type under the 5G multiple sets of system parameters, so that the information can be transmitted by utilizing reasonable overhead of the GP, and the maximization of the system performance is realized.

Description

Information transmission method and related device
Technical Field
The present application relates to the field of communications, and in particular, to a method and an apparatus for transmitting information.
Background
The 5G communication system is dedicated to support higher system performance, which will support a variety of different services, different deployment scenarios and different spectrum. Among them, different services include enhanced mobile broadband (english: enhanced Mobile Broadband, abbreviated: eMBB), machine type communication (english: machine Type Communication, abbreviated: MTC), ultra-reliable low-latency communication (english: ultra-reliable and low latency communications, abbreviated: URLLC), multimedia broadcast multicast service (english: multimedia Broadcast Multicast Service, abbreviated: MBMS), and positioning, etc. Different deployment scenarios include Indoor hot spots (English: industry hotspots), dense Urban areas (English: dense uban), suburban areas, urban Macro coverage (English: urman Macro), and high-speed railway scenarios. The 5G will support a spectral range up to 100GHz with 6GHz and below as the primary band and 6GHz and above as the secondary band.
Different services, different deployment scenarios and different spectrum have different characteristics, which each have different requirements for system parameters (numerology). To enable the 5G to support different services, different deployment scenarios, and different spectrum with high performance, the 5G will support multiple sets of system parameters.
The frame structure corresponding to the 5G communication system not only includes a downlink subframe, an uplink subframe and a special subframe in the existing LTE system, but also introduces a Self-contained subframe (english: self-contained Subframe) type, where the Self-contained subframe type may be a first subframe type S1 and/or a second subframe type S2. The S1 subframe type and the S2 subframe type comprise symbols for downlink transmission, guard Period (GP) and symbols for uplink transmission, wherein the symbols for downlink transmission in the S1 subframe are mainly used for downlink control channel transmission and downlink data transmission, and the symbols for uplink transmission are mainly used for uplink control information and channel sounding reference signal (Sounding Reference Signal, SRS) transmission; and the symbols used for downlink transmission in the S2 subframe are mainly used for downlink control channel transmission, and the symbols used for uplink transmission are mainly used for uplink data, uplink control and sounding reference signal transmission. The introduction of the self-contained subframe type can realize the advantages of unified hybrid automatic repeat request (English: hybrid Automatic Repeat reQuest, abbreviated: HARQ) timing, fast HARQ feedback of uplink and downlink, flexible time division duplex (English: time Division Duplexing, abbreviated: TDD) uplink and downlink configuration and the like.
However, since the S1 subframe and the S2 subframe both include the guard time interval GP, the more the number of the S1 subframe and the S2 subframe in one radio frame, the larger the overhead of GP will be, and therefore, a better compromise needs to be made between the gain and the overhead caused by the S1 subframe and the S2 subframe. Therefore, how to configure GP of self-contained subframe type under multiple sets of system parameters of 5G system is a problem to be solved.
Disclosure of Invention
The application provides an information transmission method and a related device, and provides configuration of GP of self-contained subframe type under 5G multiple sets of system parameters, so that information transmission can be carried out by utilizing reasonable overhead of the GP, and the maximization of system performance is realized.
The first aspect of the present application provides an information transmission method, where a user equipment determines a subcarrier spacing of a serving cell; the user equipment determines the configuration of the guard interval of the service cell according to the subcarrier interval of the service cell; the user equipment determines the frame structure of the service cell according to the configuration of the guard interval of the service cell; and the user equipment sends information or receives information on the service cell according to the frame structure of the service cell. So that the configuration of the guard interval of the serving cell can be matched with the subcarrier interval of the serving cell or the system parameters adopted by the serving cell; compared with the configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that information can be transmitted by utilizing reasonable GP overhead, and the maximization of system performance is realized. For example, if the GP configuration is the same for different subcarrier intervals, the control information feedback or SRS transmission cannot be performed quickly for a large subcarrier interval, thereby degrading the system performance; the small subcarrier spacing may cause a problem of large GP overhead.
With reference to the first aspect, in a first implementation manner of the first aspect, the determining, by the user equipment, a configuration of a guard interval of the serving cell according to a subcarrier interval of the serving cell includes:
the user equipment determines the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell; and the user equipment determines the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell.
With reference to the first implementation manner of the first aspect, in a second implementation manner of the first aspect, the determining, by the user equipment, a minimum granularity of a guard interval period of the serving cell according to a subcarrier interval of the serving cell includes:
the user equipment determines the minimum granularity of the guard interval period of the serving cell according to a preset rule and the subcarrier interval of the serving cell, wherein the preset rule is as follows:
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n·15kHz, N is a positive integer greater than or equal to 1, t is 1 millisecond; or alternatively, the first and second heat exchangers may be,
If the subcarrier spacing of the serving cell is Δf, the serving cellThe minimum granularity of the guard interval period of the cell isMillisecond, Δf=n 1 17.5kHz, N 1 Is a positive integer greater than or equal to 1, t 1 Is 1 millisecond.
With reference to the second implementation manner of the first aspect, in a third implementation manner of the first aspect, a minimum granularity of a guard interval period of the serving cell is inversely proportional to a subcarrier spacing of the serving cell.
With reference to the second implementation manner of the first aspect, in a fourth implementation manner of the first aspect, a minimum granularity of a guard interval period of the serving cell scales with a subcarrier interval of the serving cell, and specifically includes:
if the subcarrier spacing of the serving cell is amplified to the original N 2 The minimum granularity of the guard interval period of the service cell is reduced to 1/N of the original granularity 2 The N is 2 Is a positive number.
With reference to the first aspect, in a fifth implementation manner of the first aspect, the determining, by the user equipment, a configuration of a guard interval of the serving cell according to a subcarrier interval of the serving cell includes:
the user equipment determines the subframe length of the service cell according to the subcarrier interval of the service cell; and the user equipment determines the configuration of the guard interval of the service cell according to the subframe length of the service cell.
With reference to the first aspect, in a sixth implementation manner of the first aspect, the determining, by the user equipment, a configuration of a guard interval of the serving cell according to a subcarrier interval of the serving cell includes:
the user equipment determines the system parameters of the service cell according to the subcarrier interval of the service cell; the user equipment receives system information according to the system parameters of the service cell, wherein the system information comprises protection interval configuration indication information, and the protection interval configuration indication information is used for indicating the configuration of the protection interval of the service cell; and the user equipment determines the configuration of the guard interval of the service cell according to the guard interval configuration indication information.
With reference to any implementation manner of the first to fourth implementation manners of the first aspect, in a seventh implementation manner of the first aspect, the determining, by the user equipment, a configuration of a guard interval of the serving cell according to a minimum granularity of a guard interval period of the serving cell includes:
the user equipment receives system information, wherein the system information comprises guard interval configuration indication information, and the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell; and the user equipment determines the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell and the guard interval configuration indication information.
With reference to the fifth implementation manner of the first aspect, in an eighth implementation manner of the first aspect, the determining, by the user equipment, a configuration of a guard interval of the serving cell according to a subframe length of the serving cell includes:
the user equipment receives system information, wherein the system information comprises guard interval configuration indication information, and the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell; and the user equipment determines the configuration of the guard interval of the service cell according to the subframe length of the service cell and the guard interval configuration indication information.
With reference to the seventh implementation manner of the first aspect, in a ninth implementation manner of the first aspect, the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, the guard interval period indication information corresponds to a 2-bit information field, and the determining, by the user equipment, the configuration of the guard interval of the serving cell according to the minimum granularity of the guard interval period of the serving cell and the guard interval configuration indication information includes:
when the 2 information bits corresponding to the guard interval period indication information are set to 00, the period of the guard interval of the serving cell is T;
When the 2 information bits corresponding to the guard interval period indication information are set to 01, the period of the guard interval of the serving cell is 2T;
when the 2 information bits corresponding to the guard interval period indication information are set to 11, the period of the guard interval of the serving cell is 5T;
and T is the minimum granularity of the guard interval period of the serving cell.
With reference to the eighth implementation manner of the first aspect, in a tenth implementation manner of the first aspect, the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, the guard interval period indication information corresponds to a 2-bit information field, and the determining, by the user equipment, the configuration of the guard interval of the serving cell according to the subframe length of the serving cell and the guard interval configuration indication information includes:
when the 2 information bits corresponding to the guard interval period indication information are set to 00, the guard interval period of the serving cell is T subframe ；
When the 2 information bits corresponding to the guard interval period indication information are set to 01, the guard interval period of the serving cell is 2T subframe ；
When the 2 information bits corresponding to the guard interval period indication information are set to 11, the guard interval period of the serving cell is 5T subframe ；
The T is subframe And the subframe length of the serving cell.
With reference to any one of the sixth to tenth implementation manners of the first aspect, in an eleventh implementation manner of the first aspect, the configuration of the guard interval includes a length of the guard interval, the guard interval configuration indication information includes guard interval length indication information, and the user equipment determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell, and further includes:
the user equipment determines the symbol length of the service cell according to the subcarrier interval of the service cell; and the user equipment determines the length of the guard interval of the service cell according to the guard interval length indication information and the symbol length of the service cell.
With reference to the eleventh implementation manner of the first aspect, in a twelfth implementation manner of the first aspect, the guard interval length indication information corresponds to a 1-bit information field, and the determining, by the user equipment, the length of the guard interval of the serving cell according to the guard interval length indication information and the symbol length of the serving cell includes:
When 1 information bit corresponding to the guard interval length indication information is set to 0, the length of the guard interval of the serving cell is T symbol ；
When 1 information bit corresponding to the guard interval length indication information is set to 1, the length of the guard interval of the serving cell is 2T symbol ；
The T is symbol Is the symbol length of the serving cell.
With reference to the first aspect or any one of the first to tenth implementation manners of the first aspect, in a thirteenth implementation manner of the first aspect, the configuration of the guard interval includes a length of the guard interval, and the subcarrier interval of the serving cell belongs to a first subcarrier interval set, where the first subcarrier interval set includes a first subcarrier interval Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are multiples of 15kHz or multiples of 17.5kHz, the first subcarrier spacing is smaller than the second subcarrier spacing, and the length of the guard interval of the serving cell is the same as the length of the guard interval of the serving cell when the subcarrier spacing of the serving cell is the first subcarrier spacing.
With reference to the thirteenth implementation manner of the first aspect, in a fourteenth implementation manner of the first aspect, the determining, by the user equipment, a subcarrier spacing of a serving cell includes:
the user equipment determines a subcarrier interval of a first bandwidth part of a serving cell and determines a subcarrier interval of a second bandwidth part of the serving cell, wherein the subcarrier interval of the first bandwidth part is the first subcarrier interval, and the subcarrier interval of the second bandwidth part is the second subcarrier interval.
With reference to the first aspect or any implementation manner of the first aspect, in a fifteenth implementation manner of the first aspect, the determining, by the user equipment, a frame structure of the serving cell according to a configuration of a guard interval of the serving cell includes:
the user equipment determines the distribution of self-contained subframes in one radio frame of the service cell according to the configuration of the guard interval of the service cell, wherein the self-contained subframes comprise symbols for downlink transmission, the guard interval and symbols for uplink transmission, and the sum of the number of the symbols occupied by the guard interval and the number of the symbols for uplink transmission is a multiple of 2.
The second aspect of the present application provides an information transmission method, in which a base station determines a subcarrier spacing of a serving cell; the base station determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell; the base station determines the frame structure of the service cell according to the configuration of the guard interval of the service cell; and the base station transmits information or receives information on the service cell according to the frame structure of the service cell. So that the configuration of the guard interval of the serving cell can be matched with the subcarrier interval of the serving cell or the system parameters adopted by the serving cell; compared with the configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that information can be transmitted by utilizing reasonable GP overhead, and the maximization of system performance is realized. For example, if the GP configuration is the same for different subcarrier intervals, the control information feedback or SRS transmission cannot be performed quickly for a large subcarrier interval, thereby degrading the system performance; the small subcarrier spacing may cause a problem of large GP overhead.
With reference to the second aspect, in a first implementation manner of the second aspect, the determining, by the base station, a configuration of a guard interval of the serving cell according to a subcarrier interval of the serving cell includes:
the base station determines the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell; and the base station determines the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell.
With reference to the first implementation manner of the second aspect, in a second implementation manner of the second aspect, the determining, by the base station, a minimum granularity of a guard interval period of the serving cell according to a subcarrier interval of the serving cell includes:
the base station determines the minimum granularity of the guard interval period of the serving cell according to a preset rule and the subcarrier interval of the serving cell, wherein the preset rule is as follows:
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n·15kHz, N is a positive integer greater than or equal to 1, t is 1 millisecond; or alternatively, the first and second heat exchangers may be,
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell is Millisecond, Δf=n 1 17.5kHz, N 1 Is a positive integer greater than or equal to 1, t 1 Is 1 millisecond.
With reference to the second implementation manner of the second aspect, in a third implementation manner of the second aspect, a minimum granularity of a guard interval period of the serving cell is inversely proportional to a subcarrier spacing of the serving cell.
With reference to the second implementation manner of the second aspect, in a fourth implementation manner of the second aspect, a minimum granularity of a guard interval period of the serving cell scales with a subcarrier interval of the serving cell, specifically includes:
if the subcarrier spacing of the serving cell is amplified to the original N 2 The minimum granularity of the guard interval period of the service cell is reduced to 1/N of the original granularity 2 The N is 2 Is a positive number.
With reference to the second aspect, in a fifth implementation manner of the second aspect, the determining, by the base station, a configuration of a guard interval of the serving cell according to a subcarrier interval of the serving cell includes:
the base station determines the subframe length of the service cell according to the subcarrier interval of the service cell;
and the base station determines the configuration of the guard interval of the service cell according to the subframe length of the service cell.
With reference to the second aspect or any one of the first to fifth implementation manners of the second aspect, in a sixth implementation manner of the second aspect, the method further includes:
the base station transmits system information, wherein the system information comprises guard interval configuration indication information, and the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell.
With reference to the sixth implementation manner of the second aspect, in a seventh implementation manner of the second aspect, the method further includes:
the base station determines guard interval configuration indication information according to the guard interval configuration of the service cell, wherein the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell; and the base station determines system information according to the protection interval configuration indication information, wherein the system information comprises the protection interval configuration indication information.
With reference to the seventh implementation manner of the second aspect, in an eighth implementation manner of the second aspect, the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, the guard interval period indication information corresponds to a 2-bit information field, and the determining, by the base station, the guard interval configuration indication information according to the guard interval configuration of the serving cell includes:
The base station determines guard interval period indication information according to the guard interval period of the serving cell, and specifically:
when the period of the guard interval of the serving cell is T, setting 2 information bits corresponding to the guard interval period indication information to be 00;
when the period of the guard interval of the serving cell is 2T, setting 2 information bits corresponding to the guard interval period indication information to 01;
setting 2 information bits corresponding to the guard interval period indication information to 11 when the period of the guard interval of the serving cell is 5T;
and T is the minimum granularity of the guard interval period of the serving cell.
With reference to the seventh implementation manner of the second aspect, in a ninth implementation manner of the second aspect, the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, the guard interval period indication information corresponds to a 2-bit information field, and the determining, by the base station, the guard interval configuration indication information according to the guard interval configuration of the serving cell includes:
the base station determines guard interval period indication information according to the guard interval period of the serving cell, and specifically:
When the period of the guard interval of the serving cell is T subframe Setting 2 information bits corresponding to the guard interval period indication information to 00;
when the period of the guard interval of the serving cell is 2T subframe Setting 2 information bits corresponding to the guard interval period indication information to 01;
when the period of the guard interval of the serving cell is 5T subframe Setting 2 information bits corresponding to the guard interval period indication information as11；
The T is subframe And the subframe length of the serving cell.
With reference to the seventh implementation manner of the second aspect, in a tenth implementation manner of the second aspect, the configuration of the guard interval includes a length of the guard interval, the guard interval configuration indication information includes guard interval length indication information, the guard interval length indication information corresponds to a 1-bit information field, and the determining, by the base station, the guard interval configuration indication information according to the guard interval configuration of the serving cell includes:
the base station determines guard interval length indication information according to the length of the guard interval of the serving cell, and specifically:
when the length of the guard interval of the serving cell is T symbol Setting 1 information bit corresponding to the guard interval length indication information to 0;
When the length of the guard interval of the serving cell is 2T symbol Setting 1 information bit corresponding to the guard interval length indication information to 1;
the T is symbol Is the symbol length of the serving cell.
With reference to the second aspect or any one of the first to tenth implementation manners of the second aspect, in an eleventh implementation manner of the second aspect, the configuration of the guard interval includes a length of the guard interval, the subcarrier interval of the serving cell belongs to a first subcarrier interval set, and the first subcarrier interval set includes a first subcarrier interval Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are both multiples of 15kHz or multiples of 17.5kHz, the first subcarrier spacing is smaller than the second subcarrier spacing, and the length of the guard interval of the serving cell is the same as the length of the guard interval of the serving cell when the subcarrier spacing of the serving cell is the first subcarrier spacing.
With reference to the eleventh implementation manner of the second aspect, in a twelfth implementation manner of the second aspect, the determining, by the base station, a subcarrier spacing of a serving cell includes:
The base station determines a subcarrier interval of a first bandwidth part of a serving cell and determines a subcarrier interval of a second bandwidth part of the serving cell, wherein the subcarrier interval of the first bandwidth part is the first subcarrier interval, and the subcarrier interval of the second bandwidth part is the second subcarrier interval.
With reference to the second aspect or any one of the first to twelfth implementation manners of the second aspect, in a thirteenth implementation manner of the second aspect, the determining, by the base station, a frame structure of the serving cell according to a configuration of a guard interval of the serving cell includes:
the base station determines the distribution of self-contained subframes in one radio frame of the service cell according to the configuration of the guard interval of the service cell, wherein the self-contained subframes comprise symbols for downlink transmission, the guard interval and symbols for uplink transmission, and the sum of the number of the symbols occupied by the guard interval and the number of the symbols for uplink transmission is a multiple of 2.
In a third aspect of the present application, there is provided an information transmission apparatus comprising at least one unit for performing the information transmission method provided in the first aspect or any implementation of the first aspect.
In a fourth aspect of the present application, there is provided an information transmission apparatus comprising at least one unit for performing the information transmission method provided in the second aspect or any implementation manner of the second aspect.
In a fifth aspect of the present application, there is provided a storage medium having stored therein program code which, when executed by a user equipment, performs the method of transmitting information provided by the first aspect or any implementation manner of the first aspect. The storage medium includes, but is not limited to, flash memory (english: flash memory), hard disk (english: hard disk drive, abbreviated as HDD) or solid state disk (english: solid state drive, abbreviated as SSD).
In a sixth aspect of the present application, there is provided a storage medium having stored therein program code which, when executed by a base station, performs the method of transmitting information provided by the second aspect or any implementation manner of the second aspect. The storage medium includes, but is not limited to, flash memory (english: flash memory), hard disk (english: hard disk drive, abbreviated as HDD) or solid state disk (english: solid state drive, abbreviated as SSD).
According to the technical scheme provided by the application, the configuration of the guard interval of the service cell is determined according to the subcarrier interval of the service cell; determining a frame structure of the service cell according to the configuration of the guard interval of the service cell; and transmitting information or receiving information on the service cell according to the frame structure of the service cell. The configuration of the guard interval of the serving cell can be matched with the subcarrier interval of the serving cell or the system parameters adopted by the serving cell; compared with the configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that information can be transmitted by utilizing reasonable GP overhead, and the maximization of system performance is realized. For example, if the GP configuration is the same for different subcarrier intervals, the control information feedback or SRS transmission cannot be performed quickly for a large subcarrier interval, thereby degrading the system performance; the small subcarrier spacing may cause a problem of large GP overhead.
Drawings
Fig. 1 is a schematic diagram of a communication system according to the present application;
fig. 2 is a schematic diagram of an organization structure of a ue according to the present application;
FIG. 3 is a flow chart of a method for transmitting information according to the present application;
fig. 4 is a schematic diagram of an organization structure of a base station according to the present application;
FIG. 5 is a schematic flow chart of another method for transmitting information according to the present application;
FIG. 6 is a schematic diagram of an organization structure of an information transmission device according to the present application;
fig. 7 is a schematic diagram of another organization structure of the information transmission device provided by the present application.
Detailed Description
The technical solutions in the embodiments of the present application are described below with reference to the accompanying drawings in the embodiments of the present application.
Throughout this specification, the serving cell in all embodiments of the present application may be a serving cell configured by a network side device to a user device, or may refer to a serving cell serving the user device, or may refer to a serving cell to which the user device accesses. The serving cell (english: serving cell) in the embodiment of the application may also be referred to as a carrier (english: component carrier). The serving cell in the embodiment of the application can be a main serving cell (English: primary serving cell) of the user equipment or an auxiliary serving cell (English: secondary serving cell) of the user equipment.
Architecture of communication system to which the embodiment of the application is applied
The various techniques described in the present application can be used for various communication systems, such as 2G, 3G communication systems, and next generation communication systems, such as 2G communication systems for global system for mobile communications (english: global system for mobile communication, abbreviated: GSM), wideband code division multiple access (english: wideband code division multiple access, abbreviated: WCDMA), 3G communication systems for time division synchronous code division multiple access (english: time division-synchronization code division multiple access, abbreviated: TD-SCDM), and next generation communication systems for Long Term Evolution (LTE) communication systems and subsequent evolution systems. The method is mainly applied to a 5G communication system, an LTE system or an LTE evolution system. And is applicable to single carrier and multi-carrier.
Fig. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present application, where the communication system includes a base station and a user equipment, and the base station and the user equipment communicate by establishing a communication network. The user equipment in the embodiment of the present application may be a device for performing communication in the above communication system, for example, may be a mobile phone (such as a mobile phone), a tablet computer with a call function, a computer, etc., and may also be a vehicle-mounted call device, etc., which is not limited herein. The base station in the embodiment of the present application is used for communication with the ue in the above communication system, and may be, for example, a base station in a narrow sense, i.e., a public mobile communication base station, or a base station in a broad sense, i.e., a base station subsystem, which is not limited herein.
The user equipment in fig. 1 may be implemented by the user equipment 200 in fig. 2. An architectural diagram of a user device 200 is shown in fig. 2, and includes a processor 202, a memory 204, and may also include a bus 208, and a transceiver 206.
The processor 202, the memory 204, and the transceiver 206 may be communicatively coupled to each other via a bus 208, or may communicate via other means such as wireless transmission.
Memory 204 may include volatile memory (English) such as random-access memory (RAM); the memory may also include a nonvolatile memory (english: non-volatile memory), such as a read-only memory (english: ROM), a flash memory (english: flash memory), a hard disk (english: hard disk drive, abbreviated: HDD), or a solid state disk (english: solid state drive, abbreviated: SSD); memory 204 may also include a combination of the above types of memory. When the technical solution provided by the present application is implemented by software, the program code for implementing the method for transmitting information provided by fig. 3 of the present application is stored in the memory 204 and executed by the processor 202.
The user equipment 200 communicates with the base station through a transceiver 206.
The processor 202 may be a central processing unit (English: central processing unit, abbreviation: CPU).
In the embodiment of the present application, the processor 202 determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell; determining a frame structure of the service cell according to the configuration of the guard interval of the service cell; transceiver 206 transmits information or receives information on the serving cell according to the frame structure of the serving cell. The configuration of the guard interval of the serving cell can be matched with the subcarrier interval of the serving cell or the system parameters adopted by the serving cell; compared with the configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that information can be transmitted by utilizing reasonable GP overhead, and the maximization of system performance is realized.
Optionally, the processor 202 determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell, specifically:
determining the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell;
And determining the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell.
Further, the processor 202 determines the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell, specifically:
determining the minimum granularity of the guard interval period of the serving cell according to a preset rule according to the subcarrier interval of the serving cell, wherein the preset rule is as follows:
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n·15kHz, N is a positive integer greater than or equal to 1, t is 1 millisecond; or alternatively, the first and second heat exchangers may be,
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n 1 17.5kHz, N 1 Is a positive integer greater than or equal to 1, t 1 Is 1 millisecond.
Optionally, the processor 202 determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell, specifically:
determining the subframe length of the serving cell according to the subcarrier interval of the serving cell;
And determining the configuration of the guard interval of the service cell according to the subframe length of the service cell.
Optionally, the processor 202 determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell, specifically:
determining system parameters of the service cell according to the subcarrier spacing of the service cell;
receiving system information according to the system parameters of the service cell, wherein the system information comprises guard interval configuration indication information, and the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell;
and determining the configuration of the guard interval of the service cell according to the guard interval configuration indication information.
Optionally, the processor 202 determines the configuration of the guard interval of the serving cell according to the minimum granularity of the guard interval period of the serving cell, specifically:
receiving system information, wherein the system information comprises guard interval configuration indication information, and the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell;
and determining the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell and the guard interval configuration indication information.
Optionally, the processor 202 determines the configuration of the guard interval of the serving cell according to the subframe length of the serving cell, specifically:
receiving system information, wherein the system information comprises guard interval configuration indication information, and the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell;
and determining the configuration of the guard interval of the service cell according to the subframe length of the service cell and the guard interval configuration indication information.
Optionally, the configuration of the guard interval includes a period of the guard interval, the configuration indication information of the guard interval includes a period indication information of the guard interval, the period indication information of the guard interval corresponds to a 2-bit information field, and the processor 202 determines the configuration of the guard interval of the serving cell according to a minimum granularity of the period of the guard interval of the serving cell and the configuration indication information of the guard interval, specifically:
when the 2 information bits corresponding to the guard interval period indication information are set to 00, the period of the guard interval of the serving cell is T;
when the 2 information bits corresponding to the guard interval period indication information are set to 01, the period of the guard interval of the serving cell is 2T;
When the 2 information bits corresponding to the guard interval period indication information are set to 11, the period of the guard interval of the serving cell is 5T;
and T is the minimum granularity of the guard interval period of the serving cell.
It should be noted that the 2-bit information field indicates that the information field occupies 2 information bits; similarly, a 1-bit information field indicates that the information field occupies 1 information bit, and reference is made to the present description for both bit information fields and information bits.
Optionally, the configuration of the guard interval includes a period of the guard interval, the configuration indication information of the guard interval includes a period indication information of the guard interval, the period indication information of the guard interval corresponds to a 2-bit information field, and the processor 202 determines the configuration of the guard interval of the serving cell according to the subframe length of the serving cell and the configuration indication information of the guard interval, specifically:
when the 2 information bits corresponding to the guard interval period indication information are set to 00, the guard interval period of the serving cell is T subframe ；
When the said insuranceWhen the 2 information bits corresponding to the guard interval period indication information are set to 01, the guard interval period of the serving cell is 2T subframe ；
When the 2 information bits corresponding to the guard interval period indication information are set to 11, the guard interval period of the serving cell is 5T subframe ；
The T is subframe And the subframe length of the serving cell.
Optionally, the configuration of the guard interval includes a length of the guard interval, the guard interval configuration indication information includes guard interval length indication information, and the processor 202 is further configured to:
determining the symbol length of the serving cell according to the subcarrier spacing of the serving cell;
and determining the length of the guard interval of the service cell according to the guard interval length indication information and the symbol length of the service cell.
Further, the guard interval length indication information corresponds to a 1-bit information field, and the processor determines the length of the guard interval of the serving cell according to the guard interval length indication information and the symbol length of the serving cell, specifically:
when 1 information bit corresponding to the guard interval length indication information is set to 0, the length of the guard interval of the serving cell is T symbol ；
When 1 information bit corresponding to the guard interval length indication information is set to 1, the length of the guard interval of the serving cell is 2T symbol ；
The T is symbol Is the symbol length of the serving cell.
Optionally, the configuration of the guard interval includes a length of the guard interval, and the subcarrier interval of the serving cell belongs to a first subcarrier interval set, where the first subcarrier interval set includes a first subcarrier interval Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are each a multiple of 15kHz or are each a multiple of 17.5kHzThe first subcarrier spacing is smaller than the second subcarrier spacing, and when the subcarrier spacing of the serving cell is the first subcarrier spacing, the length of the guard interval of the serving cell is the same as the length of the guard interval of the serving cell when the subcarrier spacing of the serving cell is the second subcarrier spacing.
Further, the processor 202 determines a subcarrier spacing of the serving cell, specifically:
determining a subcarrier interval of a first bandwidth part of a serving cell and determining a subcarrier interval of a second bandwidth part of the serving cell, wherein the subcarrier interval of the first bandwidth part is the first subcarrier interval, and the subcarrier interval of the second bandwidth part is the second subcarrier interval.
Optionally, the processor 202 determines a frame structure of the serving cell according to a configuration of a guard interval of the serving cell, specifically:
and determining the distribution of self-contained subframes in one radio frame of the service cell according to the configuration of the guard interval of the service cell, wherein the self-contained subframes comprise symbols for downlink transmission, the guard interval and symbols for uplink transmission, and the sum of the number of the symbols occupied by the guard interval and the number of the symbols for uplink transmission is a multiple of 2.
The application also provides a method for transmitting information, which is executed when the user equipment in fig. 1 and 2 runs, and the flow chart of the method is shown in fig. 3.
301. The user equipment determines the subcarrier spacing of the serving cell.
302. And the user equipment determines the configuration of the guard interval of the service cell according to the subcarrier interval of the service cell.
303. And the user equipment determines the frame structure of the service cell according to the configuration of the guard interval of the service cell.
304. And the user equipment sends information or receives information on the service cell according to the frame structure of the service cell.
In the embodiment of the present application, unless otherwise specified, the sequence of the steps is not limited, and the interdependence of the steps is not limited.
The configuration of the guard interval of the serving cell is determined according to the subcarrier interval of the serving cell; determining a frame structure of the service cell according to the configuration of the guard interval of the service cell; and transmitting information or receiving information on the service cell according to the frame structure of the service cell. The configuration of the guard interval of the serving cell can be matched with the subcarrier interval of the serving cell or the system parameters adopted by the serving cell; compared with the configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that information can be transmitted by utilizing reasonable GP overhead, and the maximization of system performance is realized. For example, if the GP configuration is the same for different subcarrier intervals, the control information feedback or SRS transmission cannot be performed quickly for a large subcarrier interval, thereby degrading the system performance; the small subcarrier spacing may cause a problem of large GP overhead.
The method for transmitting information on the ue side will now be described in detail by the following specific embodiments.
Example 1
For step 301, the user equipment determines the subcarrier spacing of the serving cell.
In step 301, the determining, by the ue, a subcarrier spacing of a serving cell may include:
the user equipment determines the carrier frequency of a serving cell;
and determining the subcarrier spacing of the service cell according to the carrier frequency of the service cell.
The corresponding relation between the carrier frequency and the subcarrier interval of the serving cell is a preset corresponding relation. For example, when the carrier frequency is 3GHz or less, the subcarrier spacing is 15kHz; or when the carrier frequency is more than 3GHz and less than or equal to 6GHz, the subcarrier spacing is equal to 30kHz.
Or, the user equipment determining the subcarrier spacing of the serving cell may include:
the user equipment determines a frequency set corresponding to a service cell;
determining a subcarrier interval set corresponding to the serving cell according to the frequency set corresponding to the serving cell;
and determining the subcarrier interval of the service cell according to the subcarrier interval set corresponding to the service cell.
Further optionally, the correspondence between the frequency set and the subcarrier spacing set may be:
when the frequency included in the frequency set corresponding to the service cell is less than or equal to 6GHz, the subcarrier interval set corresponding to the service cell comprises a first subcarrier interval and a second subcarrier interval, wherein the first subcarrier interval is 15kHz, and the second subcarrier interval is 30kHz; or alternatively, the first and second heat exchangers may be,
When the frequency included in the frequency set corresponding to the service cell is greater than 6GHz and less than or equal to 30GHz, the subcarrier interval set corresponding to the service cell includes a second subcarrier interval and a third subcarrier interval, the second subcarrier interval is 30kHz, and the third subcarrier interval is 60kHz;
or alternatively, the first and second heat exchangers may be,
when the frequency included in the frequency set corresponding to the serving cell is greater than 30GHz and less than or equal to 100GHz, the subcarrier interval set corresponding to the serving cell includes a fourth subcarrier interval and a fifth subcarrier interval, the fourth subcarrier interval is 120kHz, and the fifth subcarrier interval is 240kHz.
Further optionally, the correspondence between the frequency set and the subcarrier spacing set may be:
when the frequency included in the frequency set corresponding to the service cell is less than or equal to 3GHz, the subcarrier interval set corresponding to the service cell comprises a first subcarrier interval and a sixth subcarrier interval, wherein the first subcarrier interval is 15kHz, and the sixth subcarrier interval is 17.5kHz; or alternatively, the first and second heat exchangers may be,
when the frequency included in the frequency set corresponding to the serving cell is greater than 3GHz and less than or equal to 6GHz, the subcarrier interval set corresponding to the serving cell includes a sixth subcarrier interval and a seventh subcarrier interval, the sixth subcarrier interval is 17.5kHz, and the seventh subcarrier interval is 35kHz; or alternatively, the first and second heat exchangers may be,
When the frequency included in the frequency set corresponding to the serving cell is greater than 6GHz and less than or equal to 30GHz, the subcarrier interval set corresponding to the serving cell includes an eighth subcarrier interval and a ninth subcarrier interval, the seventh subcarrier interval is 70kHz, and the eighth subcarrier interval is 140kHz;
or alternatively, the first and second heat exchangers may be,
when the frequency included in the frequency set corresponding to the serving cell is greater than 30GHz and less than or equal to 100GHz, the subcarrier interval set corresponding to the serving cell includes a tenth subcarrier interval and a twelfth subcarrier interval, the ninth subcarrier interval is 280kHz, and the tenth subcarrier interval is 560kHz.
Here, one subcarrier spacing set includes different subcarrier spacings, and an appropriate subcarrier spacing can be selected in different scenarios, so that system performance is improved by using more matched subcarrier spacings. For example, for a scenario with a large delay spread, a smaller subcarrier spacing may be selected, and for a high speed scenario, a larger subcarrier spacing may be selected. For another example, for frequencies less than or equal to 6GHz, the corresponding subcarrier spacing sets include 17.5kHz and 35kHz,35kHz being useful for high speed scenarios up to 500km/h and 17.5kHz being useful for scenarios with delay spreads up to about 5 us.
Optionally, the subcarrier spacing of the serving cell belongs to a first subcarrier spacing set, and the first subcarrier spacing set includes a first subcarrier spacing Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are each a multiple of 15kHz or each a multiple of 17.5kHz, and the first subcarrier spacing is less than the second subcarrier spacing; optionally, the second subcarrier spacing is 2 times the first subcarrier spacing.
The user equipment determines a subcarrier interval of a first bandwidth part of a serving cell and determines a subcarrier interval of a second bandwidth part of the serving cell, wherein the subcarrier interval of the first bandwidth part is the first subcarrier interval, and the subcarrier interval of the second bandwidth part is the second subcarrier interval. Wherein the frequency resources occupied by the first bandwidth portion are different from the frequency resources occupied by the second bandwidth portion. The service cell deploys different subcarrier intervals in different bandwidth parts, and can serve users with different characteristics by utilizing the more matched subcarrier intervals, so that the system performance is improved. For example, for a user equipment with a large delay spread, it may be scheduled in the bandwidth portion corresponding to the first subcarrier spacing, and for a high-speed user equipment, it may be scheduled in the bandwidth portion corresponding to the second subcarrier spacing. In particular, for example, for frequencies less than or equal to 6GHz, the corresponding subcarrier spacing sets include 15kHz and 30kHz, with 30kHz being useful for high speed scenarios up to 500km/h and 15kHz being useful for scenarios with delay spread up to about 5 us.
The 5G communication system needs to meet different services, different deployment scenes and different frequency spectrums; if different services and different scenarios are supported on the same serving cell, coexistence of different system parameters on the same serving cell needs to be supported, and at this time, different sub-carrier intervals are supported by different bandwidth portions in the same serving cell.
For step 302, the ue determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell.
In this step 302, the ue determines, according to the subcarrier spacing of the serving cell, a configuration of a guard interval of the serving cell, where the configuration of the guard interval may include a minimum granularity of a guard interval period, a period of the guard interval, a length of the guard interval, and so on. In all embodiments of the present application, the configuration of the guard interval may also be referred to as the configuration of the self-contained subframe (self-contained subframe), the minimum granularity of the guard interval period may also be referred to as the minimum granularity of the self-contained subframe period, the period of the guard interval may also be referred to as the period of the self-contained subframe, and the length of the guard interval may also be referred to as the length of the guard interval of the self-contained subframe.
In this step 302, the determining, by the ue, the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell may include:
The user equipment determines the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell;
and the user equipment determines the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell.
Further, the determining, by the ue, the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell may include:
the ue determines the minimum granularity of the guard interval period of the serving cell according to a preset rule and according to the subcarrier interval of the serving cell, where the preset rule may be:
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n·15kHz, N is a positive integer greater than or equal to 1, t is 1 millisecond or 0.5 millisecond; or alternatively, the first and second heat exchangers may be,
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n 1 17.5kHz, N 1 Is a positive integer greater than or equal to 1, t 1 Either 1 ms or 0.5 ms.
Or, the determining, by the ue, the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell may include:
And the user equipment determines the minimum granularity of the guard interval period of the service cell according to the subcarrier interval of the service cell, wherein the minimum granularity of the guard interval period of the service cell is inversely proportional to the subcarrier interval of the service cell.
Or, the determining, by the ue, the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell may include:
the ue determines the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell, where the minimum granularity of the guard interval period of the serving cell scales with the subcarrier interval of the serving cell, and specifically may be:
if the subcarrier spacing of the serving cell is amplified to the original N 2 The minimum granularity of the guard interval period of the service cell is reduced to 1/N of the original granularity 2 The N is 2 Is a positive number.
Further, the determining, by the ue, the configuration of the guard interval of the serving cell according to the minimum granularity of the guard interval period of the serving cell may include:
the user equipment receives system information, wherein the system information comprises guard interval configuration indication information, and the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell;
And the user equipment determines the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell and the guard interval configuration indication information.
Further, the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, the guard interval period indication information may correspond to a 2-bit information field, and the determining, by the user equipment, the configuration of the guard interval of the serving cell according to the minimum granularity of the guard interval period of the serving cell and the guard interval configuration indication information may include:
when the 2 information bits corresponding to the guard interval period indication information are set to 00, the period of the guard interval of the serving cell is T;
when the 2 information bits corresponding to the guard interval period indication information are set to 01, the period of the guard interval of the serving cell is 2T;
when the 2 information bits corresponding to the guard interval period indication information are set to 11, the period of the guard interval of the serving cell is 5T;
and T is the minimum granularity of the guard interval period of the serving cell.
And/or, further, the configuration of the guard interval includes a length of the guard interval, the guard interval configuration indication information includes guard interval length indication information, and the determining, by the user equipment, the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell may include:
the user equipment determines the symbol length of the service cell according to the subcarrier interval of the service cell;
and the user equipment determines the length of the guard interval of the service cell according to the guard interval length indication information and the symbol length of the service cell.
Wherein,
the guard interval length indication information may correspond to a 1-bit information field, and the determining, by the user equipment, the length of the guard interval of the serving cell according to the guard interval length indication information and the symbol length of the serving cell may include:
when 1 information bit corresponding to the guard interval length indication information is set to 0, the length of the guard interval of the serving cell is T symbol ；
When 1 information bit corresponding to the guard interval length indication information is set to 1, the length of the guard interval of the serving cell is 2T symbol ；
The T is symbol Is the symbol length of the serving cell.
The symbol length of the serving cell includes an effective length and a cyclic prefix of the symbol of the serving cell, and the determining, by the user equipment, the symbol length of the serving cell according to the subcarrier interval of the serving cell may include:
the determining, by the ue, the effective length of the symbol of the serving cell and the cyclic prefix of the symbol according to the subcarrier interval of the serving cell may specifically include:
if the subcarrier spacing of the serving cell is Δf, the effective length of the symbol may beThe cyclic prefix of the symbol may be equal to +.>The T is s =1/(15000×2048); or alternatively, the first and second heat exchangers may be,
if the subcarrier spacing of the serving cell is Δf, the effective length of the symbol may beThe cyclic prefix of the symbol is equal to +.>The T is CP The resource unit comprises a cyclic prefix of a symbol when the subcarrier spacing of the serving cell is 17.5kHz, the T symbolNoCP An effective length of a symbol included in the resource unit when a subcarrier spacing of the serving cell is 17.5 kHz; optionally, the T symbol Equal to 1/(17500) seconds, said T CP Equal to about 5.36 microseconds.
In all embodiments of the present application, the symbol of the serving cell may refer to a time domain symbol, or may refer to an OFDM symbol, or may refer to an SC-FDMA symbol; the length of a symbol includes the cyclic prefix CP (Cyclic Prefix) of the symbol and the effective length of the symbol.
And/or, further, the configuration of the guard interval includes a length of the guard interval, the subcarrier interval of the serving cell belongs to a first subcarrier interval set, and the first subcarrier interval set includes a first subcarrier interval Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are each a multiple of 15kHzOr are multiples of 17.5kHz, the first subcarrier spacing is smaller than the second subcarrier spacing, and the length of the guard interval of the serving cell is the same as the length of the guard interval of the serving cell when the subcarrier spacing of the serving cell is the second subcarrier spacing when the subcarrier spacing of the serving cell is the first subcarrier spacing; here, the same guard interval length is used for different subcarrier intervals, so that the service cell can be ensured to reach the same coverage area by adopting different subcarrier intervals.
Optionally, the first subcarrier is disposed at a first bandwidth part of the serving cell at intervals, and the second subcarrier is disposed at a second bandwidth part of the serving cell at intervals; when the first subcarrier interval and the second subcarrier interval are deployed in different bandwidth parts of the same service cell, the lengths of the guard intervals corresponding to the different subcarrier intervals are the same when the frequency resources occupied by the first bandwidth part and the second bandwidth part are adjacent, uplink and downlink interference of the bandwidth parts can be avoided, different system parameters corresponding to the different subcarrier intervals can be multiplexed efficiently, different service services can be served for different deployment scenes efficiently, and system performance is improved.
Further, the system information in this step may be a master information block MIB or a system information block SIB;
further optionally, the guard interval configuration indication information in this step is carried in a system information block SIB, where the master information block MIB of the serving cell includes system information subframe indication information, where the system information subframe indication information is used to indicate a subframe type of the system information subframe, where the system information subframe is used to transmit the system information block, and where the subframe type includes a self-contained subframe type and a downlink subframe type; the system information subframe indication information may correspond to a 1-bit information field, when 1 bit corresponding to the system information subframe indication information is set to 0, the system information subframe is of a downlink subframe type, and when 1 bit corresponding to the system information subframe indication information is set to 1, the system information subframe is of a self-contained subframe type; or when 1 bit corresponding to the system information subframe indication information is set to be 1, the system information subframe is of a downlink subframe type, and when 1 bit corresponding to the system information subframe indication information is set to be 0, the system information subframe is of a self-contained subframe type.
Further optionally, the guard interval configuration indication information in the step is carried in a system information block SIB, where downlink control information DCI corresponding to the system information block SIB includes system information subframe indication information, where the system information subframe indication information is used to indicate a subframe type of the system information subframe, where the system information subframe is used to transmit the system information block, and the subframe type includes a self-contained subframe type and a downlink subframe type; the system information subframe indication information may correspond to a 1-bit information field, when 1 bit corresponding to the system information subframe indication information is set to 0, the system information subframe is of a downlink subframe type, and when 1 bit corresponding to the system information subframe indication information is set to 1, the system information subframe is of a self-contained subframe type; or when 1 bit corresponding to the system information subframe indication information is set to be 1, the system information subframe is of a downlink subframe type, and when 1 bit corresponding to the system information subframe indication information is set to be 0, the system information subframe is of a self-contained subframe type.
For step 303, the ue determines a frame structure of the serving cell according to the configuration of the guard interval of the serving cell.
In this step 303, the determining, by the ue, the frame structure of the serving cell according to the configuration of the guard interval of the serving cell may include:
and the user equipment determines the length of the guard interval of the self-contained subframe in the frame structure of the service cell according to the length of the guard interval of the service cell.
Further, the sum of the number of symbols occupied by the guard interval and the number of symbols used for uplink transmission may be a multiple of 2;
optionally, the determining, by the ue, the frame structure of the serving cell according to the configuration of the guard interval of the serving cell may further include:
the user equipment determines the distribution of self-contained subframes in one radio frame in the frame structure of the service cell according to the period of the guard interval of the service cell; the user equipment determines the position of a self-contained subframe in a radio frame in the frame structure of the service cell according to the period of the guard interval of the service cell; for example, if the period of the guard interval of the serving cell is 1 time the subframe length, all subframes in one radio frame in the frame structure of the serving cell are self-contained subframes.
Optionally, the determining, by the ue, the frame structure of the serving cell according to the configuration of the guard interval of the serving cell may further include:
The user equipment determines the distribution of self-contained subframes in one radio frame in the frame structure of the service cell according to the period of the guard interval of the service cell and the subframe offset of the guard interval; for example, if the period of the guard interval of the serving cell is 5 times the subframe length and the subframe offset of the guard interval is 4, the subframes 3 and 8 in one radio frame in the frame structure of the serving cell are self-contained subframes.
Further, in this step 303, the frame structure of the serving cell may be composed of a self-contained subframe and/or a downlink subframe and/or an uplink subframe, where the self-contained subframe includes symbols for downlink transmission, a guard interval, and symbols for uplink transmission, and a sum of the number of symbols occupied by the guard interval and the number of symbols for uplink transmission may be a multiple of 2.
For step 304, the ue sends information or receives information on the serving cell according to the frame structure of the serving cell.
In the step 304, the ue sends or receives information on the serving cell according to the frame structure of the serving cell;
specifically, the step 304 may be that the ue sends uplink data and uplink control information to the base station on the serving cell according to the frame structure of the serving cell; the ue may further receive, according to the resource unit of the serving cell, information sent by the base station on the serving cell, and specifically may include downlink data, downlink control information, and downlink reference signals sent by the receiving base station.
In the embodiment of the application, the configuration of the guard interval of the service cell can be matched with the subcarrier interval of the service cell, or the configuration of the guard interval of the service cell can be matched with the system parameter adopted by the service cell by determining the configuration of the guard interval of the service cell according to the subcarrier interval of the service cell, for example, determining the subframe length of the service cell according to the subframe length of the service cell; compared with the unchanged configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that the maximization of the system performance can be realized by utilizing reasonable GP overhead.
In the embodiment of the application, the same guard interval length is adopted for different subcarrier intervals, so that the service cell can be ensured to reach the same coverage area by adopting different subcarrier intervals; when the first subcarrier interval and the second subcarrier interval are deployed in different bandwidth parts of the same service cell, uplink and downlink interference of the different bandwidth parts can be avoided, different system parameters corresponding to the different subcarrier intervals can be multiplexed efficiently, different service services in different deployment scenes can be served efficiently, and system performance is improved.
Example two
For step 301, the user equipment determines the subcarrier spacing of the serving cell.
In step 301, the ue determines the subcarrier spacing of the serving cell, which is specifically described in step 301 in the first embodiment of the ue side and will not be described herein.
For step 302, the ue determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell.
This step 302 is different from the step 302 of the embodiment on the user equipment side, in that in this step 302, the user equipment determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell, where the configuration of the guard interval may include the period of the guard interval, the length of the guard interval, and so on. In all embodiments of the present application, the configuration of the guard interval may also be referred to as the configuration of the self-contained subframe (self-contained subframe), the minimum granularity of the guard interval period may also be referred to as the minimum granularity of the self-contained subframe period, the period of the guard interval may also be referred to as the period of the self-contained subframe, and the length of the guard interval may also be referred to as the length of the guard interval of the self-contained subframe.
In this step 302, the determining, by the ue, the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell may include:
The user equipment determines the subframe length of the service cell according to the subcarrier interval of the service cell;
the user equipment determines the configuration of the guard interval of the service cell according to the subframe length of the service cell;
further, the determining, by the ue, the subframe length of the serving cell according to the subcarrier spacing of the serving cell may include:
the ue determines a subframe length of the serving cell according to a preset rule according to a subcarrier interval of the serving cell, where the preset rule may be:
if the subcarrier spacing of the serving cell is Δf, the subframe length of the serving cell isMillisecond, Δf=n·15kHz, N is a positive integer greater than or equal to 1, t is 1 millisecond; or alternatively, the first and second heat exchangers may be,
if the subcarrier spacing of the serving cell is Δf, the subframe length of the serving cell isMillisecond, Δf=n 1 17.5kHz, N 1 Is a positive integer greater than or equal to 1, t 1 Is 1 milliSecond, wherein the second is;
or, the determining, by the ue, the subframe length of the serving cell according to the subcarrier spacing of the serving cell may include:
the user equipment determines the subframe length of the service cell according to the subcarrier interval of the service cell, wherein the subframe length of the service cell is inversely proportional to the subcarrier interval of the service cell;
Or, the determining, by the ue, the subframe length of the serving cell according to the subcarrier spacing of the serving cell may include:
the user equipment determines the subframe length of the serving cell according to the subcarrier interval of the serving cell, and the subframe length of the serving cell scales with the subcarrier interval of the serving cell, which may specifically be:
if the subcarrier spacing of the serving cell is amplified to the original N 2 The sub-frame length of the service cell is reduced to 1/N of the original sub-frame length 2 The N is 2 Is a positive number.
Further, the determining, by the ue, the configuration of the guard interval of the serving cell according to the subframe length of the serving cell may include:
the user equipment receives system information, wherein the system information comprises guard interval configuration indication information, and the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell;
the user equipment determines the configuration of the guard interval of the service cell according to the subframe length of the service cell and the guard interval configuration indication information;
further, the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, the guard interval period indication information may correspond to a 2-bit information field, and the determining, by the user equipment, the configuration of the guard interval of the serving cell according to the subframe length of the serving cell and the guard interval configuration indication information may include:
When the guard interval isWhen the 2 information bits corresponding to the period indication information are set to 00, the period of the guard interval of the serving cell is T subframe ；
When the 2 information bits corresponding to the guard interval period indication information are set to 01, the guard interval period of the serving cell is 2T subframe ；
When the 2 information bits corresponding to the guard interval period indication information are set to 11, the guard interval period of the serving cell is 5T subframe ；
The T is subframe And the subframe length of the serving cell.
And/or, further, the configuration of the guard interval includes a length of the guard interval, the guard interval configuration indication information includes guard interval length indication information, and the determining, by the user equipment, the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell may include:
the user equipment determines the symbol length of the service cell according to the subcarrier interval of the service cell;
and the user equipment determines the length of the guard interval of the service cell according to the guard interval length indication information and the symbol length of the service cell.
Wherein,
the guard interval length indication information may correspond to a 1-bit information field, and the determining, by the user equipment, the length of the guard interval of the serving cell according to the guard interval length indication information and the symbol length of the serving cell may include:
When 1 information bit corresponding to the guard interval length indication information is set to 0, the length of the guard interval of the serving cell is T symbol ；
When 1 information bit corresponding to the guard interval length indication information is set to 1, the length of the guard interval of the serving cell is 2T symbol ；
The T is symbol Is the symbol length of the serving cell.
Other descriptions of the symbol length of the serving cell are as described in the first embodiment of the ue side with respect to step 302, and are not described herein.
And/or, further, the configuration of the guard interval includes a length of the guard interval, the subcarrier interval of the serving cell belongs to a first subcarrier interval set, and the first subcarrier interval set includes a first subcarrier interval Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are multiples of 15kHz or multiples of 17.5kHz, the first subcarrier spacing is smaller than the second subcarrier spacing, and the length of the guard interval of the service cell is the same as the length of the guard interval of the service cell when the subcarrier spacing of the service cell is the first subcarrier spacing; here, the same guard interval length is adopted for different subcarrier intervals, so that the service cell can be ensured to reach the same coverage area by adopting different subcarrier intervals;
Optionally, the first subcarrier is disposed at a first bandwidth part of the serving cell at intervals, and the second subcarrier is disposed at a second bandwidth part of the serving cell at intervals; when the first subcarrier interval and the second subcarrier interval are deployed in different bandwidth parts of the same service cell, the lengths of the guard intervals corresponding to the different subcarrier intervals are the same when the frequency resources occupied by the first bandwidth part and the second bandwidth part are adjacent, uplink and downlink interference of the bandwidth parts can be avoided, different system parameters corresponding to the different subcarrier intervals can be multiplexed efficiently, different service services can be served for different deployment scenes efficiently, and system performance is improved.
Further, the system information in this step 302 may be a master information block MIB or a system information block SIB; other descriptions of the system information in the step 302 are as described in the first embodiment of the ue side for the step 302, and are not repeated here.
For step 303, the ue determines a frame structure of the serving cell according to the configuration of the guard interval of the serving cell.
In step 303, the ue determines the frame structure of the serving cell according to the configuration of the guard interval of the serving cell, and in particular, the description of step 303 in the first embodiment of the ue side is omitted here.
For step 304, the ue sends information or receives information on the serving cell according to the frame structure of the serving cell.
In step 304, the ue sends information or receives information on the serving cell according to the frame structure of the serving cell, which is specifically described in step 304 in the first embodiment of the ue side, and is not described herein again.
In the embodiment of the application, the configuration of the guard interval of the service cell can be matched with the subcarrier interval of the service cell or the system parameter adopted by the service cell by determining the configuration of the guard interval of the service cell according to the subcarrier interval of the service cell, for example, by determining the minimum granularity of the guard interval period of the service cell according to the subcarrier interval of the service cell and determining the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell; compared with the unchanged configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that the maximization of the system performance can be realized by utilizing reasonable GP overhead.
In the embodiment of the application, the same guard interval length is adopted for different subcarrier intervals, so that the service cell can be ensured to reach the same coverage area by adopting different subcarrier intervals; when the first subcarrier interval and the second subcarrier interval are deployed in different bandwidth parts of the same service cell, uplink and downlink interference of the different bandwidth parts can be avoided, different system parameters corresponding to the different subcarrier intervals can be multiplexed efficiently, different service services in different deployment scenes can be served efficiently, and system performance is improved.
Example III
For step 301, the user equipment determines the subcarrier spacing of the serving cell.
In step 301, the ue determines the subcarrier spacing of the serving cell, which is specifically described in step 301 in the first embodiment of the ue side and will not be described herein.
For step 302, the ue determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell.
The difference between this step 302 and the step 302 in the first embodiment of the ue side is that, in this step 302, the ue determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell, where the configuration of the guard interval may include the period of the guard interval, the length of the guard interval, the subframe offset of the guard interval, the minimum granularity of the guard interval period, and so on. In all embodiments of the present application, the configuration of the guard interval may also be referred to as the configuration of the self-contained subframe (self-contained subframe), the minimum granularity of the guard interval period may also be referred to as the minimum granularity of the self-contained subframe period, the period of the guard interval may also be referred to as the period of the self-contained subframe, and the length of the guard interval may also be referred to as the length of the guard interval of the self-contained subframe.
In this step 302, the determining, by the ue, the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell may include:
the user equipment determines the system parameters of the service cell according to the subcarrier interval of the service cell;
the user equipment receives system information according to the system parameters of the service cell, wherein the system information comprises protection interval configuration indication information, and the protection interval configuration indication information is used for indicating the configuration of the protection interval of the service cell;
the user equipment determines the guard interval configuration of the service cell according to the guard interval configuration indication information;
further, the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, the guard interval period indication information may correspond to a 2-bit information field, and the determining, by the user equipment, the guard interval configuration of the serving cell according to the guard interval configuration indication information may include:
when the 2 information bits corresponding to the guard interval period indication information are set to 00, the period of the guard interval of the serving cell is T;
When the 2 information bits corresponding to the guard interval period indication information are set to 01, the period of the guard interval of the serving cell is 2T;
when the 2 information bits corresponding to the guard interval period indication information are set to 11, the period of the guard interval of the serving cell is 5T;
the T is the minimum granularity of the guard interval period of the serving cell;
or, may include:
when the 2 information bits corresponding to the guard interval period indication information are set to 00, the guard interval period of the serving cell is T subframe ；
When the 2 information bits corresponding to the guard interval period indication information are set to 01, the guard interval period of the serving cell is 2T subframe ；
When the 2 information bits corresponding to the guard interval period indication information are set to 11, the guard interval period of the serving cell is 5T subframe ；
The T is subframe And the subframe length of the serving cell.
And/or, further, the configuration of the guard interval includes a length of the guard interval, the guard interval configuration indication information includes guard interval length indication information, and the determining, by the user equipment, the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell may include:
The user equipment determines the symbol length of the service cell according to the subcarrier interval of the service cell;
and the user equipment determines the length of the guard interval of the service cell according to the guard interval length indication information and the symbol length of the service cell.
Wherein,
the guard interval length indication information may correspond to a 1-bit information field, and the determining, by the user equipment, the length of the guard interval of the serving cell according to the guard interval length indication information and the symbol length of the serving cell may include:
when 1 information bit corresponding to the guard interval length indication information is set to 0, the length of the guard interval of the serving cell is T symbol ；
When 1 information bit corresponding to the guard interval length indication information is set to 1, the length of the guard interval of the serving cell is 2T symbol ；
The T is symbol Is the symbol length of the serving cell.
Other descriptions of the symbol length of the serving cell are as described in the first embodiment of the ue side with respect to step 302, and are not described herein.
And/or, further, the configuration of the guard interval includes a length of the guard interval, the subcarrier interval of the serving cell belongs to a first subcarrier interval set, and the first subcarrier interval set includes a first subcarrier interval Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are multiples of 15kHz or multiples of 17.5kHz, the first subcarrier spacing is smaller than the second subcarrier spacing, and the length of the guard interval of the service cell is the same as the length of the guard interval of the service cell when the subcarrier spacing of the service cell is the first subcarrier spacing; here, the same guard interval length is used for different subcarrier intervals, so that the service cell can be ensured to reach the same coverage area by adopting different subcarrier intervals.
Optionally, the first subcarrier is disposed at a first bandwidth part of the serving cell at intervals, and the second subcarrier is disposed at a second bandwidth part of the serving cell at intervals; when the first subcarrier interval and the second subcarrier interval are deployed in different bandwidth parts of the same service cell, the lengths of the guard intervals corresponding to the different subcarrier intervals are the same when the frequency resources occupied by the first bandwidth part and the second bandwidth part are adjacent, uplink and downlink interference of the bandwidth parts can be avoided, different system parameters corresponding to the different subcarrier intervals can be multiplexed efficiently, different service services can be served for different deployment scenes efficiently, and system performance is improved.
Further, the system information in this step 302 may be a master information block MIB or a system information block SIB; other descriptions of the system information in the step 302 are as described in the first embodiment of the ue side for the step 302, and are not repeated here.
Further, the ue determines a system parameter of the serving cell according to a subcarrier interval of the serving cell, where a correspondence between the subcarrier interval and the system parameter is as shown in table 1, table 2, or table 3 below; note that the numerical values in tables 1 to 3 are only examples, and the values after rounding are, for example, the effective symbol length and the CP length in the present embodiment may be numbers similar to the numerical values in the tables. The interdependence between the parameters in the table is not limited.
TABLE 1
TABLE 2
TABLE 3 Table 3
For step 303, the ue determines a frame structure of the serving cell according to the configuration of the guard interval of the serving cell.
In step 303, the ue determines the frame structure of the serving cell according to the configuration of the guard interval of the serving cell, and in particular, the description of step 303 in the first embodiment of the ue side is omitted here.
For step 304, the ue sends information or receives information on the serving cell according to the frame structure of the serving cell.
In step 304, the ue sends information or receives information on the serving cell according to the frame structure of the serving cell, which is specifically described in step 304 in the first embodiment of the ue side, and is not described herein again.
In the embodiment of the application, the configuration of the guard interval of the service cell is determined according to the subcarrier interval of the service cell, and the configuration of the guard interval of the service cell can be matched with the subcarrier interval of the service cell or the system parameter adopted by the service cell through indicating the configuration of the guard interval of the service cell to the user equipment through the system information; compared with the unchanged configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that the maximization of the system performance can be realized by utilizing reasonable GP overhead;
in the embodiment of the application, the same guard interval length is adopted for different subcarrier intervals, so that the service cell can be ensured to reach the same coverage area by adopting different subcarrier intervals; when the first subcarrier interval and the second subcarrier interval are deployed in different bandwidth parts of the same service cell, uplink and downlink interference of the different bandwidth parts can be avoided, different system parameters corresponding to the different subcarrier intervals can be multiplexed efficiently, different service services in different deployment scenes can be served efficiently, and system performance is improved.
The base station in fig. 1 may be implemented by the base station 400 in fig. 4. The architecture diagram of the base station 400 is shown in fig. 4, and includes a processor 402, a memory 404, and may further include a bus 408 and a transceiver 406.
The processor 402, the memory 404, and the transceiver 406 may be communicatively coupled to each other via a bus 408, or may communicate via other means such as wireless transmission.
Memory 404 may include volatile memory (English) such as random-access memory (RAM); the memory may also include a nonvolatile memory (english: non-volatile memory), such as a read-only memory (english: ROM), a flash memory (english: flash memory), a hard disk (english: hard disk drive, abbreviated: HDD), or a solid state disk (english: solid state drive, abbreviated: SSD); memory 404 may also include a combination of the above types of memory. When the technical solution provided by the present application is implemented by software, the program code for implementing the method for transmitting information provided by fig. 5 of the present application is stored in the memory 404 and executed by the processor 402.
The base station 400 communicates with the user equipment via a transceiver 406.
The processor 402 may be a central processing unit (English: central processing unit, abbreviation: CPU).
In the embodiment of the present application, the processor 402 determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell; determining a frame structure of the service cell according to the configuration of the guard interval of the service cell; transceiver 406 transmits information or receives information on the serving cell according to the frame structure of the serving cell. The configuration of the guard interval of the serving cell can be matched with the subcarrier interval of the serving cell or the system parameters adopted by the serving cell; compared with the configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that information can be transmitted by utilizing reasonable GP overhead, and the maximization of system performance is realized.
Optionally, the processor 402 determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell, specifically:
determining the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell;
And determining the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell.
Further, the processor 402 determines, according to the subcarrier spacing of the serving cell, the minimum granularity of the guard interval period of the serving cell, specifically:
determining the minimum granularity of the guard interval period of the serving cell according to a preset rule according to the subcarrier interval of the serving cell, wherein the preset rule is as follows:
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n·15kHz, N is a positive integer greater than or equal to 1, t is 1 millisecond; or alternatively, the first and second heat exchangers may be,
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n 1 17.5kHz, N 1 Is a positive integer greater than or equal to 1, t 1 Is 1 millisecond.
Optionally, the processor 402 determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell, specifically:
determining the subframe length of the serving cell according to the subcarrier interval of the serving cell;
And determining the configuration of the guard interval of the service cell according to the subframe length of the service cell.
Optionally, the processor 402 sends system information, where the system information includes guard interval configuration indication information, where the guard interval configuration indication information is used to indicate a configuration of a guard interval of the serving cell.
Optionally, the processor 402 determines guard interval configuration indication information according to the guard interval configuration of the serving cell, where the guard interval configuration indication information is used to indicate the configuration of the guard interval of the serving cell;
and determining system information according to the protection interval configuration indication information, wherein the system information comprises the protection interval configuration indication information.
Further, the configuration of the guard interval includes a guard interval period, the guard interval configuration indication information includes guard interval period indication information, and the determining, by the processor 402, the guard interval configuration indication information according to the guard interval configuration of the serving cell includes:
the guard interval period indication information is determined according to the guard interval period of the serving cell, specifically:
when the period of the guard interval of the serving cell is T, setting 2 information bits corresponding to the guard interval period indication information to be 00;
When the period of the guard interval of the serving cell is 2T, setting 2 information bits corresponding to the guard interval period indication information to 01;
setting 2 information bits corresponding to the guard interval period indication information to 11 when the period of the guard interval of the serving cell is 5T;
and T is the minimum granularity of the guard interval period of the serving cell.
Optionally, the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, and the determining, by the processor 402, the guard interval configuration indication information according to the guard interval configuration of the serving cell includes:
the guard interval period indication information is determined according to the guard interval period of the serving cell, specifically:
when the period of the guard interval of the serving cell is T subframe Setting 2 information bits corresponding to the guard interval period indication information to 00;
when the period of the guard interval of the serving cell is 2T subframe Setting 2 information bits corresponding to the guard interval period indication information to 01;
when the period of the guard interval of the serving cell is 5T subframe Setting 2 information bits corresponding to the guard interval period indication information to 11;
The T is subframe And the subframe length of the serving cell.
Optionally, the configuration of the guard interval includes a length of the guard interval, the guard interval configuration indication information includes guard interval length indication information, the guard interval length indication information corresponds to a 1-bit information field, and the determining, by the processor 402, the guard interval configuration indication information according to the guard interval configuration of the serving cell includes:
and determining the guard interval length indication information according to the length of the guard interval of the service cell, wherein the guard interval length indication information is specifically:
when the length of the guard interval of the serving cell is T symbol Setting 1 information bit corresponding to the guard interval length indication information to 0;
when the length of the guard interval of the serving cell is 2T symbol Setting 1 information bit corresponding to the guard interval length indication information to 1;
the T is symbol Is the symbol length of the serving cell.
Optionally, the configuration of the guard interval includes a length of the guard interval, and the subcarrier interval of the serving cell belongs to a first subcarrier interval set, where the first subcarrier interval set includes a first subcarrier interval Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are both multiples of 15kHz or multiples of 17.5kHz, and the first subcarrier spacing is smaller than the second subcarrier spacing, and when the subcarrier spacing of the serving cell is the The length of the guard interval of the serving cell in the first subcarrier interval is the same as the length of the guard interval of the serving cell in the second subcarrier interval.
Further, the processor 402 determines the subcarrier spacing of the serving cell, specifically:
determining a subcarrier interval of a first bandwidth part of a serving cell and determining a subcarrier interval of a second bandwidth part of the serving cell, wherein the subcarrier interval of the first bandwidth part is the first subcarrier interval, and the subcarrier interval of the second bandwidth part is the second subcarrier interval.
Optionally, the processor 402 determines a frame structure of the serving cell according to a configuration of a guard interval of the serving cell, specifically:
and determining the distribution of self-contained subframes in one radio frame of the service cell according to the configuration of the guard interval of the service cell, wherein the self-contained subframes comprise symbols for downlink transmission, the guard interval and symbols for uplink transmission, and the sum of the number of the symbols occupied by the guard interval and the number of the symbols for uplink transmission is a multiple of 2.
The application also provides a method for transmitting information, which is executed when the base station 400 in fig. 1 and fig. 4 is operated, and the flow chart of the method is shown in fig. 5.
501. The base station determines the subcarrier spacing of the serving cell.
502. And the base station determines the configuration of the guard interval of the service cell according to the subcarrier interval of the service cell.
503. And the base station determines the frame structure of the service cell according to the configuration of the guard interval of the service cell.
504. And the base station transmits information or receives information on the service cell according to the frame structure of the service cell.
In the embodiment of the present application, unless otherwise specified, the sequence of the steps is not limited, and the interdependence of the steps is not limited.
The configuration of the guard interval of the serving cell is determined according to the subcarrier interval of the serving cell; determining a frame structure of the service cell according to the configuration of the guard interval of the service cell; and transmitting information or receiving information on the service cell according to the frame structure of the service cell. The configuration of the guard interval of the serving cell can be matched with the subcarrier interval of the serving cell or the system parameters adopted by the serving cell; compared with the configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that information can be transmitted by utilizing reasonable GP overhead, and the maximization of system performance is realized. For example, if the GP configuration is the same for different subcarrier intervals, the control information feedback or SRS transmission cannot be performed quickly for a large subcarrier interval, thereby degrading the system performance; the small subcarrier spacing may cause a problem of large GP overhead.
The transmission method of information on the base station side will now be described in detail by the following specific embodiments.
Example 1
For step 501, the base station determines the subcarrier spacing of the serving cell.
In this step 501, the base station determines a subcarrier spacing of a serving cell, which may include:
the base station determines the carrier frequency of a serving cell;
and determining the subcarrier spacing of the service cell according to the carrier frequency of the service cell.
The corresponding relation between the carrier frequency and the subcarrier interval of the serving cell is a preset corresponding relation. For example, when the carrier frequency is 3GHz or less, the subcarrier spacing is 15kHz; or when the carrier frequency is more than 3GHz and less than or equal to 6GHz, the subcarrier spacing is equal to 30kHz.
Or, the base station determining the subcarrier spacing of the serving cell may include:
the base station determines a frequency set corresponding to a serving cell;
determining a subcarrier interval set corresponding to the serving cell according to the frequency set corresponding to the serving cell;
and determining the subcarrier interval of the service cell according to the subcarrier interval set corresponding to the service cell.
Further optionally, the correspondence between the frequency set and the subcarrier spacing set may be as described in step 301, which is not described herein.
Optionally, the subcarrier spacing of the serving cell belongs to a first subcarrier spacing set, and the first subcarrier spacing set includes a first subcarrier spacing Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are each a multiple of 15kHz or each a multiple of 17.5kHz, and the first subcarrier spacing is less than the second subcarrier spacing; optionally, the second subcarrier spacing is 2 times the first subcarrier spacing.
The base station determines a subcarrier interval of a first bandwidth part of a serving cell and determines a subcarrier interval of a second bandwidth part of the serving cell, wherein the subcarrier interval of the first bandwidth part is the first subcarrier interval, and the subcarrier interval of the second bandwidth part is the second subcarrier interval. Wherein the frequency resources occupied by the first bandwidth portion are different from the frequency resources occupied by the second bandwidth portion. The service cell deploys different subcarrier intervals in different bandwidth parts, and can serve users with different characteristics by utilizing the more matched subcarrier intervals, so that the system performance is improved. For example, for a user equipment with a large delay spread, it may be scheduled in the bandwidth portion corresponding to the first subcarrier spacing, and for a high-speed user equipment, it may be scheduled in the bandwidth portion corresponding to the second subcarrier spacing. In particular, for example, for frequencies less than or equal to 6GHz, the corresponding subcarrier spacing sets include 15kHz and 30kHz, with 30kHz being useful for high speed scenarios up to 500km/h and 15kHz being useful for scenarios with delay spread up to about 5 us.
The 5G communication system needs to meet different services, different deployment scenes and different frequency spectrums; if different services and different scenarios are supported on the same serving cell, coexistence of different system parameters on the same serving cell needs to be supported, and at this time, different sub-carrier intervals are supported by different bandwidth portions in the same serving cell.
For step 502, the base station determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell.
In step 502, the base station determines a configuration of a guard interval of the serving cell according to a subcarrier interval of the serving cell, where the configuration of the guard interval may include a minimum granularity of a guard interval period, a period of the guard interval, a length of the guard interval, and the like.
In this step 502, the base station determining the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell may include:
the base station determines the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell;
and the base station determines the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell.
Further, the determining, by the base station, the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell may include:
the base station determines the minimum granularity of the guard interval period of the serving cell according to a preset rule and the subcarrier interval of the serving cell, wherein the preset rule may be:
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n·15kHz, N is a positive integer greater than or equal to 1, t is 1 millisecond or 0.5 millisecond; or alternatively, the first and second heat exchangers may be,
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n 1 17.5kHz, N 1 Is a positive integer greater than or equal to 1, t 1 Either 1 ms or 0.5 ms.
Or, the determining, by the base station, the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell may include:
and the base station determines the minimum granularity of the guard interval period of the service cell according to the subcarrier interval of the service cell, wherein the minimum granularity of the guard interval period of the service cell is inversely proportional to the subcarrier interval of the service cell.
Or, the determining, by the base station, the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell may include:
the base station determines the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell, and the minimum granularity of the guard interval period of the serving cell scales with the subcarrier interval of the serving cell, which may specifically be:
if the subcarrier spacing of the serving cell is amplified to the original N 2 The minimum granularity of the guard interval period of the service cell is reduced to 1/N of the original granularity 2 The N is 2 Is a positive number.
Further, the determining, by the base station, the configuration of the guard interval of the serving cell according to the minimum granularity of the guard interval period of the serving cell may further include:
the base station determines guard interval configuration indication information according to the guard interval configuration of the service cell, wherein the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell;
the base station determines system information according to the guard interval configuration indication information, wherein the system information comprises the guard interval configuration indication information;
The base station transmits system information.
Further, the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, and the base station determines the guard interval configuration indication information according to the guard interval configuration of the serving cell, and may include:
the base station determines guard interval period indication information according to the guard interval period of the serving cell, where the guard interval period indication information may correspond to a 2-bit information field, and specifically:
when the period of the guard interval of the serving cell is T, setting 2 information bits corresponding to the guard interval period indication information to be 00;
when the period of the guard interval of the serving cell is 2T, setting 2 information bits corresponding to the guard interval period indication information to 01;
setting 2 information bits corresponding to the guard interval period indication information to 11 when the period of the guard interval of the serving cell is 5T;
and T is the minimum granularity of the guard interval period of the serving cell.
It should be noted that, the embodiment of the present application only gives an example, and the corresponding relationship between the values of the 2 information bits corresponding to the guard interval period indication information and the guard interval period may also be other corresponding relationships, for example:
When the period of the guard interval of the serving cell is 5T, setting 2 information bits corresponding to the guard interval period indication information to 10; or alternatively, the first and second heat exchangers may be,
setting 2 information bits corresponding to the guard interval period indication information to 11 when the period of the guard interval of the serving cell is 4T; or alternatively, the first and second heat exchangers may be,
when the period of the guard interval of the serving cell is 4T, setting 2 information bits corresponding to the guard interval period indication information to 10;
and/or, further, the configuration of the guard interval includes a length of the guard interval, the guard interval configuration indication information includes guard interval length indication information, the guard interval length indication information corresponds to a 1-bit information field, and the base station determines the guard interval configuration indication information according to the guard interval configuration of the serving cell, and may include:
the base station determines the guard interval length indication information according to the length of the guard interval of the serving cell, which may specifically be:
when the length of the guard interval of the serving cell is T symbol Setting 1 information bit corresponding to the guard interval length indication information to 0;
when the length of the guard interval of the serving cell is 2T symbol Setting 1 information bit corresponding to the guard interval length indication information to 1;
the T is symbol Is the symbol length of the serving cell.
The descriptions of the symbol and the symbol length of the serving cell are as described in the first embodiment of the ue side with respect to step 302, and are not repeated here.
And/or, further, the configuration of the guard interval includes a length of the guard interval, the subcarrier interval of the serving cell belongs to a first subcarrier interval set, and the first subcarrier interval set includes a first subcarrier interval Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are multiples of 15kHz or multiples of 17.5kHz, the first subcarrier spacing is smaller than the second subcarrier spacing, and the length of the guard interval of the service cell is the same as the length of the guard interval of the service cell when the subcarrier spacing of the service cell is the first subcarrier spacing; here, the same guard interval length is used for different subcarrier intervals, so that the service cell can be ensured to reach the same coverage area by adopting different subcarrier intervals.
Optionally, the first subcarrier is disposed at a first bandwidth part of the serving cell at intervals, and the second subcarrier is disposed at a second bandwidth part of the serving cell at intervals; when the first subcarrier interval and the second subcarrier interval are deployed in different bandwidth parts of the same service cell, the lengths of the guard intervals corresponding to the different subcarrier intervals are the same when the frequency resources occupied by the first bandwidth part and the second bandwidth part are adjacent, uplink and downlink interference of the bandwidth parts can be avoided, different system parameters corresponding to the different subcarrier intervals can be multiplexed efficiently, different service services can be served for different deployment scenes efficiently, and system performance is improved.
Further, the system information in this step may be a master information block MIB or a system information block SIB; other descriptions about the system information are as described in the first embodiment of the ue side in the related description of step 302, and are not repeated here.
For step 503, the base station determines a frame structure of the serving cell according to the configuration of the guard interval of the serving cell.
In this step 503, the base station determines a frame structure of the serving cell according to the configuration of the guard interval of the serving cell, and may include:
And the base station determines the length of the guard interval of the self-contained subframe in the frame structure of the service cell according to the length of the guard interval of the service cell.
Further, the sum of the number of symbols occupied by the guard interval and the number of symbols used for uplink transmission may be a multiple of 2.
The base station determining the frame structure of the serving cell according to the configuration of the guard interval of the serving cell may further include:
the base station determines the distribution of self-contained subframes in one radio frame in the frame structure of the service cell according to the period of the guard interval of the service cell; the base station determines the position of a self-contained subframe in a radio frame in the frame structure of the service cell according to the period of the guard interval of the service cell; for example, if the period of the guard interval of the serving cell is 1 time the subframe length, all subframes in one radio frame in the frame structure of the serving cell are self-contained subframes.
The base station determining the frame structure of the serving cell according to the configuration of the guard interval of the serving cell may further include:
the base station determines the distribution of self-contained subframes in one radio frame in the frame structure of the service cell according to the period of the guard interval of the service cell and the subframe offset of the guard interval; for example, if the period of the guard interval of the serving cell is 5 times the subframe length and the subframe offset of the guard interval is 4, the subframes 3 and 8 in one radio frame in the frame structure of the serving cell are self-contained subframes.
Further, in this step 503, the frame structure of the serving cell may be composed of a self-contained subframe and/or a downlink subframe and/or an uplink subframe, where the self-contained subframe includes symbols for downlink transmission, a guard interval, and symbols for uplink transmission, and a sum of the number of symbols occupied by the guard interval and the number of symbols for uplink transmission may be a multiple of 2.
For step 504, the base station sends information or receives information on the serving cell according to the frame structure of the serving cell.
In the step 504, the base station sends information or receives information on the serving cell according to the frame structure of the serving cell;
specifically, the base station may send information to the ue on the serving cell according to the frame structure of the serving cell, and specifically may include sending downlink data, downlink control information, and downlink reference signals to the ue; the base station may further receive information sent by the ue on the serving cell according to the resource unit of the serving cell, and specifically may include receiving uplink data and uplink control information sent by the ue.
In the embodiment of the application, the configuration of the guard interval of the service cell can be matched with the subcarrier interval of the service cell, or the configuration of the guard interval of the service cell can be matched with the system parameter adopted by the service cell by determining the configuration of the guard interval of the service cell according to the subcarrier interval of the service cell, for example, determining the subframe length of the service cell according to the subframe length of the service cell; compared with the unchanged configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that the maximization of the system performance can be realized by utilizing reasonable GP overhead.
In the embodiment of the application, the same guard interval length is adopted for different subcarrier intervals, so that the service cell can be ensured to reach the same coverage area by adopting different subcarrier intervals; when the first subcarrier interval and the second subcarrier interval are deployed in different bandwidth parts of the same service cell, uplink and downlink interference of the different bandwidth parts can be avoided, different system parameters corresponding to the different subcarrier intervals can be multiplexed efficiently, different service services in different deployment scenes can be served efficiently, and system performance is improved.
Example two
For step 501, the base station determines the subcarrier spacing of the serving cell.
In step 501, the base station determines the subcarrier spacing of the serving cell, which is specifically described in the related description of step 501 in the first embodiment of the base station side, and is not described here again.
For step 502, the base station determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell.
The difference between this step 502 and the step 502 in the first embodiment of the base station side is that, in this step 502, the base station determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell, where the configuration of the guard interval may include the period of the guard interval, the length of the guard interval, and so on.
In this step 502, the base station determining the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell may include:
the base station determines the subframe length of the service cell according to the subcarrier interval of the service cell;
and the base station determines the configuration of the guard interval of the service cell according to the subframe length of the service cell.
Further, the determining, by the base station, the subframe length of the serving cell according to the subcarrier spacing of the serving cell may include:
the base station determines the subframe length of the serving cell according to a preset rule and the subcarrier interval of the serving cell, wherein the preset rule may be:
if the subcarrier spacing of the serving cell is Δf, the subframe length of the serving cell isMillisecond, Δf=n·15kHz, N is a positive integer greater than or equal to 1, t is 1 millisecond; or alternatively, the first and second heat exchangers may be,
if the subcarrier spacing of the serving cell is Δf, the subframe length of the serving cell isMillisecond, Δf=n 1 17.5kHz, N 1 Is a positive integer greater than or equal to 1, t 1 Is 1 millisecond.
Or, the determining, by the base station, the subframe length of the serving cell according to the subcarrier spacing of the serving cell may include:
And the base station determines the subframe length of the service cell according to the subcarrier interval of the service cell, wherein the subframe length of the service cell is inversely proportional to the subcarrier interval of the service cell.
Or, the determining, by the base station, the subframe length of the serving cell according to the subcarrier spacing of the serving cell may include:
the base station determines the subframe length of the serving cell according to the subcarrier interval of the serving cell, wherein the subframe length of the serving cell scales with the subcarrier interval of the serving cell, and specifically may be:
if the subcarrier spacing of the serving cell is amplified to the original N 2 The sub-frame length of the service cell is reduced to 1/N of the original sub-frame length 2 The N is 2 Is a positive number.
Further, the determining, by the base station, the configuration of the guard interval of the serving cell according to the subframe length of the serving cell may further include:
the base station determines guard interval configuration indication information according to the guard interval configuration of the service cell, wherein the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell;
the base station determines system information according to the guard interval configuration indication information, wherein the system information comprises the guard interval configuration indication information;
The base station transmits system information.
Further, the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, and the base station determines the guard interval configuration indication information according to the guard interval configuration of the serving cell, and may include:
the base station determines guard interval period indication information according to the guard interval period of the serving cell, where the guard interval period indication information may correspond to a 2-bit information field, and specifically:
when the period of the guard interval of the serving cell is T subframe Setting 2 information bits corresponding to the guard interval period indication information to 00;
when the period of the guard interval of the serving cell is 2T subframe Setting 2 information bits corresponding to the guard interval period indication information to 01;
when the period of the guard interval of the serving cell is 5T subframe Setting 2 information bits corresponding to the guard interval period indication information to 11;
the T is subframe And the subframe length of the serving cell.
It should be noted that, the embodiment of the present application only gives an example, and the corresponding relationship between the values of the 2 information bits corresponding to the guard interval period indication information and the guard interval period may also be other corresponding relationships, for example:
When the period of the guard interval of the serving cell is 5T subframe Setting 2 information bits corresponding to the guard interval period indication information to 10; or alternatively, the first and second heat exchangers may be,
when the period of the guard interval of the serving cell is 4T subframe Setting 2 information bits corresponding to the guard interval period indication information to 11; or alternatively, the first and second heat exchangers may be,
when the period of the guard interval of the serving cell is 4T subframe And setting 2 information bits corresponding to the guard interval period indication information to 10.
And/or, further, the configuration of the guard interval includes a length of the guard interval, the guard interval configuration indication information includes guard interval length indication information, the guard interval length indication information corresponds to a 1-bit information field, and the base station determines the guard interval configuration indication information according to the guard interval configuration of the serving cell, and may include:
the base station determines the guard interval length indication information according to the length of the guard interval of the serving cell, which may specifically be:
when the length of the guard interval of the serving cell is T symbol Setting 1 information bit corresponding to the guard interval length indication information to 0;
when the length of the guard interval of the serving cell is 2T symbol Setting 1 information bit corresponding to the guard interval length indication information to 1;
the T is symbol Is the symbol length of the serving cell.
The descriptions of the symbol and the symbol length of the serving cell are as described in the first embodiment of the ue side with respect to step 302, and are not repeated here.
And/or, further, the configuration of the guard interval includes a length of the guard interval, the subcarrier interval of the serving cell belongs to a first subcarrier interval set, and the first subcarrier interval set includes a first subcarrier interval Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacingThe carrier intervals are all multiples of 15kHz or all multiples of 17.5kHz, the first subcarrier interval is smaller than the second subcarrier interval, and the length of the guard interval of the service cell is the same as the length of the guard interval of the service cell when the subcarrier interval of the service cell is the first subcarrier interval; here, the same guard interval length is used for different subcarrier intervals, so that the service cell can be ensured to reach the same coverage area by adopting different subcarrier intervals.
Optionally, the first subcarrier is disposed at a first bandwidth part of the serving cell at intervals, and the second subcarrier is disposed at a second bandwidth part of the serving cell at intervals; when the first subcarrier interval and the second subcarrier interval are deployed in different bandwidth parts of the same service cell, the lengths of the guard intervals corresponding to the different subcarrier intervals are the same when the frequency resources occupied by the first bandwidth part and the second bandwidth part are adjacent, uplink and downlink interference of the bandwidth parts can be avoided, different system parameters corresponding to the different subcarrier intervals can be multiplexed efficiently, different service services can be served for different deployment scenes efficiently, and system performance is improved.
Further, the system information in this step 502 may be a master information block MIB or a system information block SIB; other descriptions about the system information are as described in the first embodiment of the ue side in the related description of step 302, and are not repeated here.
For step 503, the base station determines a frame structure of the serving cell according to the configuration of the guard interval of the serving cell.
In step 503, the base station determines the frame structure of the serving cell according to the configuration of the guard interval of the serving cell, and in particular, the description of step 503 in the first embodiment of the base station side is omitted here.
For step 504, the base station sends information or receives information on the serving cell according to the frame structure of the serving cell.
In step 504, the base station transmits information or receives information on the serving cell according to the frame structure of the serving cell, which is specifically described in step 504 in the first embodiment of the base station side, and is not described herein again.
In the embodiment of the application, the configuration of the guard interval of the service cell can be matched with the subcarrier interval of the service cell or the system parameter adopted by the service cell by determining the configuration of the guard interval of the service cell according to the subcarrier interval of the service cell, for example, by determining the minimum granularity of the guard interval period of the service cell according to the subcarrier interval of the service cell and determining the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell; compared with the unchanged configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that the maximization of the system performance can be realized by utilizing reasonable GP overhead.
In the embodiment of the application, the same guard interval length is adopted for different subcarrier intervals, so that the service cell can be ensured to reach the same coverage area by adopting different subcarrier intervals; when the first subcarrier interval and the second subcarrier interval are deployed in different bandwidth parts of the same service cell, uplink and downlink interference of the different bandwidth parts can be avoided, different system parameters corresponding to the different subcarrier intervals can be multiplexed efficiently, different service services in different deployment scenes can be served efficiently, and system performance is improved.
Example III
For step 501, the base station determines the subcarrier spacing of the serving cell.
In step 501, the base station determines the subcarrier spacing of the serving cell, which is specifically described in the related description of step 501 in the first embodiment of the base station side, and is not described here again.
For step 502, the base station determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell.
The difference between this step 502 and the step 502 in the first embodiment of the base station side is that, in this step 502, the base station determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell, where the configuration of the guard interval may include the period of the guard interval, the length of the guard interval, the subframe offset of the guard interval, the minimum granularity of the guard interval period, and so on.
In this step 502, the base station determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell, and may further include:
the base station determines guard interval configuration indication information according to the guard interval configuration of the service cell, wherein the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell;
the base station determines system information according to the guard interval configuration indication information, wherein the system information comprises the guard interval configuration indication information;
The base station transmits system information.
Further, the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, and the base station determines the guard interval configuration indication information according to the guard interval configuration of the serving cell, and may include:
the base station determines guard interval period indication information according to the guard interval period of the serving cell, where the guard interval period indication information may correspond to a 2-bit information field, and specifically includes:
when the period of the guard interval of the serving cell is T, setting 2 information bits corresponding to the guard interval period indication information to be 00;
when the period of the guard interval of the serving cell is 2T, setting 2 information bits corresponding to the guard interval period indication information to 01;
setting 2 information bits corresponding to the guard interval period indication information to 11 when the period of the guard interval of the serving cell is 5T;
and T is the minimum granularity of the guard interval period of the serving cell.
Or, the base station determines guard interval period indication information according to the guard interval period of the serving cell, where the guard interval period indication information may correspond to a 2-bit information field, and specifically includes:
When the period of the guard interval of the serving cell is T subframe Setting 2 information bits corresponding to the guard interval period indication information to 00;
when the period of the guard interval of the serving cell is 2T subframe Setting 2 information bits corresponding to the guard interval period indication information to 01;
when the period of the guard interval of the serving cell is 5T subframe Setting 2 information bits corresponding to the guard interval period indication information to 11;
the T is subframe And the subframe length of the serving cell.
It should be noted that, the embodiment of the present application only gives an example, and the corresponding relationship between the values of the 2 information bits corresponding to the guard interval period indication information and the guard interval period may also be other corresponding relationships, for example:
when the period of the guard interval of the serving cell is 5T subframe Setting 2 information bits corresponding to the guard interval period indication information to 10; or alternatively, the first and second heat exchangers may be,
when the period of the guard interval of the serving cell is 4T subframe Setting 2 information bits corresponding to the guard interval period indication information to 11; or alternatively, the first and second heat exchangers may be,
when the period of the guard interval of the serving cell is 4T subframe And setting 2 information bits corresponding to the guard interval period indication information to 10.
And/or, further, the configuration of the guard interval includes a length of the guard interval, the guard interval configuration indication information includes guard interval length indication information, the guard interval length indication information corresponds to a 1-bit information field, and the base station determines the guard interval configuration indication information according to the guard interval configuration of the serving cell, and may include:
the base station determines the guard interval length indication information according to the length of the guard interval of the serving cell, which may specifically be:
when the length of the guard interval of the serving cell is T symbol Setting 1 information bit corresponding to the guard interval length indication information to 0;
when the length of the guard interval of the serving cell is 2T symbol Setting 1 information bit corresponding to the guard interval length indication information to 1;
the T is symbol Is the symbol length of the serving cell.
The descriptions of the symbol and the symbol length of the serving cell are as described in the first embodiment of the ue side with respect to step 302, and are not repeated here.
And/or, further, the configuration of the guard interval includes a length of the guard interval, the subcarrier interval of the serving cell belongs to a first subcarrier interval set, and the first subcarrier interval set includes a first subcarrier interval Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are multiples of 15kHz or multiples of 17.5kHz, the first subcarrier spacing is smaller than the second subcarrier spacing, and the length of the guard interval of the service cell is the same as the length of the guard interval of the service cell when the subcarrier spacing of the service cell is the first subcarrier spacing; here, the same guard interval length is used for different subcarrier intervals, so that the service cell can be ensured to reach the same coverage area by adopting different subcarrier intervals.
Optionally, the first subcarrier is disposed at a first bandwidth part of the serving cell at intervals, and the second subcarrier is disposed at a second bandwidth part of the serving cell at intervals; when the first subcarrier interval and the second subcarrier interval are deployed in different bandwidth parts of the same service cell, the lengths of the guard intervals corresponding to the different subcarrier intervals are the same when the frequency resources occupied by the first bandwidth part and the second bandwidth part are adjacent, uplink and downlink interference of the bandwidth parts can be avoided, different system parameters corresponding to the different subcarrier intervals can be multiplexed efficiently, different service services can be served for different deployment scenes efficiently, and system performance is improved.
Further, the system information in this step may be a master information block MIB or a system information block SIB; other descriptions about the system information are as described in the first embodiment of the ue side in the related description of step 302, and are not repeated here.
For step 503, the base station determines a frame structure of the serving cell according to the configuration of the guard interval of the serving cell.
In step 503, the base station determines the frame structure of the serving cell according to the configuration of the guard interval of the serving cell, and in particular, the description of step 503 in the first embodiment of the base station side is omitted here.
For step 504, the base station sends information or receives information on the serving cell according to the frame structure of the serving cell.
In step 504, the base station transmits information or receives information on the serving cell according to the frame structure of the serving cell, which is specifically described in step 504 in the first embodiment of the base station side, and is not described herein again.
In the embodiment of the application, the configuration of the guard interval of the service cell is determined according to the subcarrier interval of the service cell, and the configuration of the guard interval of the service cell can be matched with the subcarrier interval of the service cell or the system parameter adopted by the service cell through indicating the configuration of the guard interval of the service cell to the user equipment through the system information; compared with the unchanged configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that the maximization of the system performance can be realized by utilizing reasonable GP overhead;
In the embodiment of the application, the same guard interval length is adopted for different subcarrier intervals, so that the service cell can be ensured to reach the same coverage area by adopting different subcarrier intervals; when the first subcarrier interval and the second subcarrier interval are deployed in different bandwidth parts of the same service cell, uplink and downlink interference of the different bandwidth parts can be avoided, different system parameters corresponding to the different subcarrier intervals can be multiplexed efficiently, different service services in different deployment scenes can be served efficiently, and system performance is improved.
The embodiment of the application also provides an information transmission device 600, where the device 600 may be implemented by the user equipment 200 shown in fig. 2, or may be implemented by an application-specific integrated circuit (english: application-specific integrated circuit, abbreviated as ASIC) or a programmable logic device (english: programmable logic device, abbreviated as PLD). The PLD may be a complex programmable logic device (English: complex programmable logic device, abbreviated: CPLD), an FPGA, general array logic (English: generic array logic, abbreviated: GAL), or any combination thereof. The information transmission apparatus 600 is used to implement the information transmission method shown in fig. 3. When the method for transmitting information shown in fig. 3 is implemented by software, the apparatus 600 may be a software module.
As shown in fig. 6, the organization structure of the information transmission device 600 includes: a processing unit 602 and a transceiver unit 604. When the processing unit 602 works, the optional schemes in steps 301 to 303 and 301 to 303 in the information transmission method shown in fig. 3 are executed; the transceiver unit 604 is operative to perform step 304 of the method of transmitting information shown in fig. 3 and alternatives thereof. It should be noted that in an embodiment of the present application, the processing unit 602 may also be implemented by the processor 202 as shown in fig. 2, and the transceiver unit 604 may also be implemented by the transceiver 202 as shown in fig. 2.
The information transmission device determines the configuration of the guard interval of the service cell according to the subcarrier interval of the service cell; determining a frame structure of the service cell according to the configuration of the guard interval of the service cell; and transmitting information or receiving information on the service cell according to the frame structure of the service cell. The configuration of the guard interval of the serving cell can be matched with the subcarrier interval of the serving cell or the system parameters adopted by the serving cell; compared with the configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that information can be transmitted by utilizing reasonable GP overhead, and the maximization of system performance is realized.
The embodiment of the application also provides a device 700 for transmitting information, and the device 700 can be realized by the base station 400 shown in fig. 4, and can also be realized by an application-specific integrated circuit (English: application-specific integrated circuit, abbreviated as ASIC) or a programmable logic device (English: programmable logic device, abbreviated as PLD). The PLD may be a complex programmable logic device (English: complex programmable logic device, abbreviated: CPLD), an FPGA, general array logic (English: generic array logic, abbreviated: GAL), or any combination thereof. The information transmission apparatus 700 is used to implement the information transmission method shown in fig. 5. When the method for transmitting information shown in fig. 5 is implemented by software, the apparatus 700 may be a software module.
The organization structure of the information transmission device 700 is schematically shown in fig. 7, and includes: a processing unit 702 and a transceiver unit 704. When the processing unit 702 is operating, the optional schemes in steps 501 to 503 and 501 to 503 in the information transmission method shown in fig. 5 are executed; the transceiver unit 704 is operative to perform step 504 of the method for transmitting information shown in fig. 5 and alternatives thereof. It should be noted that in an embodiment of the present application, the processing unit 702 may also be implemented by the processor 402 as shown in fig. 4, and the transceiver unit 704 may also be implemented by the transceiver 402 as shown in fig. 4.
The information transmission device determines the configuration of the guard interval of the service cell according to the subcarrier interval of the service cell; determining a frame structure of the service cell according to the configuration of the guard interval of the service cell; and transmitting information or receiving information on the service cell according to the frame structure of the service cell. The configuration of the guard interval of the serving cell can be matched with the subcarrier interval of the serving cell or the system parameters adopted by the serving cell; compared with the configuration of the guard interval under different system parameters, the system parameters adopted by the service cell can be flexibly matched, so that information can be transmitted by utilizing reasonable GP overhead, and the maximization of system performance is realized.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Those skilled in the art will appreciate that in one or more of the examples described above, the functions described in the present application may be implemented in hardware or software. When implemented in software, these functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (62)

1. A method for transmitting information, comprising:
the user equipment determines the subcarrier spacing of the serving cell;
the user equipment determines the configuration of the guard interval of the service cell according to the subcarrier interval of the service cell;
The user equipment determines the frame structure of the service cell according to the configuration of the guard interval of the service cell;
and the user equipment sends information or receives information on the service cell according to the frame structure of the service cell.
2. The method according to claim 1, wherein the user equipment determining the configuration of the guard interval of the serving cell from the subcarrier spacing of the serving cell comprises:
the user equipment determines the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell;
and the user equipment determines the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell.
3. The method according to claim 2, wherein the user equipment determining the minimum granularity of the guard interval period of the serving cell from the subcarrier spacing of the serving cell comprises:
the user equipment determines the minimum granularity of the guard interval period of the serving cell according to a preset rule and the subcarrier interval of the serving cell, wherein the preset rule is as follows:
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell is Millisecond, Δf=n·15kHz, N is a positive integer greater than or equal to 1, t is 1 millisecond; or alternatively, the first and second heat exchangers may be,
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n 1 17.5kHz, N 1 Is a positive integer greater than or equal to 1, t 1 Is 1 millisecond.
4. A method according to claim 3, characterized in that the minimum granularity of the guard interval period of the serving cell is inversely proportional to the subcarrier spacing of the serving cell.
5. A method according to claim 3, characterized in that the minimum granularity of the guard interval period of the serving cell scales with the subcarrier spacing of the serving cell, in particular comprising:
if the subcarrier spacing of the serving cell is amplified to the original N 2 The minimum granularity of the guard interval period of the service cell is reduced to 1/N of the original granularity 2 The N is 2 Is a positive number.
6. The method according to claim 1, wherein the user equipment determining the configuration of the guard interval of the serving cell from the subcarrier spacing of the serving cell comprises:
the user equipment determines the subframe length of the service cell according to the subcarrier interval of the service cell;
And the user equipment determines the configuration of the guard interval of the service cell according to the subframe length of the service cell.
7. The method according to claim 1, wherein the user equipment determining the configuration of the guard interval of the serving cell from the subcarrier spacing of the serving cell comprises:
the user equipment determines the system parameters of the service cell according to the subcarrier interval of the service cell;
the user equipment receives system information according to the system parameters of the service cell, wherein the system information comprises protection interval configuration indication information, and the protection interval configuration indication information is used for indicating the configuration of the protection interval of the service cell;
and the user equipment determines the configuration of the guard interval of the service cell according to the guard interval configuration indication information.
8. The method according to any of claims 2 to 5, wherein the user equipment determining the configuration of the guard interval of the serving cell according to a minimum granularity of guard interval periods of the serving cell comprises:
the user equipment receives system information, wherein the system information comprises guard interval configuration indication information, and the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell;
And the user equipment determines the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell and the guard interval configuration indication information.
9. The method of claim 6, wherein the user equipment determining the configuration of the guard interval of the serving cell according to the subframe length of the serving cell comprises:
the user equipment receives system information, wherein the system information comprises guard interval configuration indication information, and the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell;
and the user equipment determines the configuration of the guard interval of the service cell according to the subframe length of the service cell and the guard interval configuration indication information.
10. The method according to claim 8, wherein the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, the guard interval period indication information corresponds to a 2-bit information field, and the user equipment determines the configuration of the guard interval of the serving cell according to a minimum granularity of the guard interval period of the serving cell and the guard interval configuration indication information, including:
When the 2 information bits corresponding to the guard interval period indication information are set to 00, the period of the guard interval of the serving cell is T;
when the 2 information bits corresponding to the guard interval period indication information are set to 01, the period of the guard interval of the serving cell is 2T;
when the 2 information bits corresponding to the guard interval period indication information are set to 11, the period of the guard interval of the serving cell is 5T;
and T is the minimum granularity of the guard interval period of the serving cell.
11. The method according to claim 9, wherein the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, the guard interval period indication information corresponds to a 2-bit information field, and the user equipment determines the configuration of the guard interval of the serving cell according to a subframe length of the serving cell and the guard interval configuration indication information, including:
when the 2 information bits corresponding to the guard interval period indication information are set to 00, the guard interval period of the serving cell is T subframe ；
When the 2 information bits corresponding to the guard interval period indication information are set to 01, the guard interval period of the serving cell is 2T subframe ；
When the 2 information bits corresponding to the guard interval period indication information are set to 11, the guard interval period of the serving cell is 5T subframe ；
The T is subframe And the subframe length of the serving cell.
12. The method according to claim 7,9, 10 or 11, wherein the configuration of the guard interval comprises a length of the guard interval, the guard interval configuration indication information comprises guard interval length indication information, and the user equipment determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell, further comprising:
the user equipment determines the symbol length of the service cell according to the subcarrier interval of the service cell;
and the user equipment determines the length of the guard interval of the service cell according to the guard interval length indication information and the symbol length of the service cell.
13. The method according to claim 12, wherein the guard interval length indication information corresponds to a 1-bit information field, and the user equipment determining the length of the guard interval of the serving cell according to the guard interval length indication information and the symbol length of the serving cell comprises:
When 1 information bit corresponding to the guard interval length indication information is set to 0, the length of the guard interval of the serving cell is T symbol ；
When 1 information bit corresponding to the guard interval length indication information is set to 1, the length of the guard interval of the serving cell is 2T symbol ；
The T is symbol Is the symbol length of the serving cell.
14. The method according to any of claims 1 to 7, wherein the configuration of the guard interval comprises a length of a guard interval, the subcarrier spacing of the serving cell belonging to a first set of subcarrier spacings, the first set of subcarrier spacings comprising a first subcarrier spacing Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are multiples of 15kHz or multiples of 17.5kHz, the first subcarrier spacing is smaller than the second subcarrier spacing, and the length of the guard interval of the serving cell is the same as the length of the guard interval of the serving cell when the subcarrier spacing of the serving cell is the first subcarrier spacing.
15. The method of claim 14, wherein the user equipment determining the subcarrier spacing of the serving cell comprises:
The user equipment determines a subcarrier interval of a first bandwidth part of a serving cell and determines a subcarrier interval of a second bandwidth part of the serving cell, wherein the subcarrier interval of the first bandwidth part is the first subcarrier interval, and the subcarrier interval of the second bandwidth part is the second subcarrier interval.
16. The method according to any of claims 1 to 7, wherein the user equipment determining the frame structure of the serving cell from the configuration of the guard interval of the serving cell comprises:
the user equipment determines the distribution of self-contained subframes in one radio frame of the service cell according to the configuration of the guard interval of the service cell, wherein the self-contained subframes comprise symbols for downlink transmission, the guard interval and symbols for uplink transmission, and the sum of the number of the symbols occupied by the guard interval and the number of the symbols for uplink transmission is a multiple of 2.
17. A method for transmitting information, comprising:
the base station determines the subcarrier spacing of the serving cell;
the base station determines the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell;
The base station determines the frame structure of the service cell according to the configuration of the guard interval of the service cell;
and the base station transmits information or receives information on the service cell according to the frame structure of the service cell.
18. The method of claim 17, wherein the base station determining the configuration of the guard interval of the serving cell from the subcarrier spacing of the serving cell comprises:
the base station determines the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell;
and the base station determines the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell.
19. The method of claim 18, wherein the base station determining a minimum granularity of a guard interval period of the serving cell from a subcarrier spacing of the serving cell comprises:
the base station determines the minimum granularity of the guard interval period of the serving cell according to a preset rule and the subcarrier interval of the serving cell, wherein the preset rule is as follows:
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell is Millisecond, Δf=n·15kHz, N is a positive integer greater than or equal to 1, t is 1 millisecond; or alternatively, the first and second heat exchangers may be,
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n 1 17.5kHz, N 1 Is a positive integer greater than or equal to 1, t 1 Is 1 millisecond.
20. The method of claim 19, wherein the minimum granularity of the guard interval period of the serving cell is inversely proportional to the subcarrier spacing of the serving cell.
21. The method according to claim 19, wherein the minimum granularity of the guard interval period of the serving cell scales with the subcarrier spacing of the serving cell, comprising:
if the subcarrier spacing of the serving cell is amplified to the original N 2 The minimum granularity of the guard interval period of the service cell is reduced to 1/N of the original granularity 2 The N is 2 Is a positive number.
22. The method of claim 17, wherein the base station determining the configuration of the guard interval of the serving cell from the subcarrier spacing of the serving cell comprises:
the base station determines the subframe length of the service cell according to the subcarrier interval of the service cell;
And the base station determines the configuration of the guard interval of the service cell according to the subframe length of the service cell.
23. The method according to any one of claims 17 to 22, further comprising:
the base station transmits system information, wherein the system information comprises guard interval configuration indication information, and the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell.
24. The method of claim 23, wherein the method further comprises:
the base station determines guard interval configuration indication information according to the guard interval configuration of the service cell, wherein the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell;
and the base station determines system information according to the protection interval configuration indication information, wherein the system information comprises the protection interval configuration indication information.
25. The method of claim 24, wherein the configuration of the guard interval comprises a period of a guard interval, the guard interval configuration indication information comprises guard interval period indication information, the guard interval period indication information corresponds to a 2-bit information field, and the base station determines the guard interval configuration indication information according to the guard interval configuration of the serving cell, comprising:
The base station determines guard interval period indication information according to the guard interval period of the serving cell, and specifically:
when the period of the guard interval of the serving cell is T, setting 2 information bits corresponding to the guard interval period indication information to be 00;
when the period of the guard interval of the serving cell is 2T, setting 2 information bits corresponding to the guard interval period indication information to 01;
setting 2 information bits corresponding to the guard interval period indication information to 11 when the period of the guard interval of the serving cell is 5T;
and T is the minimum granularity of the guard interval period of the serving cell.
26. The method of claim 24, wherein the configuration of the guard interval comprises a period of a guard interval, the guard interval configuration indication information comprises guard interval period indication information, the guard interval period indication information corresponds to a 2-bit information field, and the base station determines the guard interval configuration indication information according to the guard interval configuration of the serving cell, comprising:
the base station determines guard interval period indication information according to the guard interval period of the serving cell, and specifically:
When the period of the guard interval of the serving cell is T subframe Setting 2 information bits corresponding to the guard interval period indication information to 00;
when the period of the guard interval of the serving cell is 2T subframe Setting 2 information bits corresponding to the guard interval period indication information to 01;
when the period of the guard interval of the serving cell is 5T subframe Setting 2 information bits corresponding to the guard interval period indication information to 11;
the T is subframe For the service smallThe subframe length of the region.
27. The method of claim 24, wherein the configuration of the guard interval comprises a length of the guard interval, the guard interval configuration indication information comprises guard interval length indication information, the guard interval length indication information corresponds to a 1-bit information field, and the base station determines the guard interval configuration indication information according to the guard interval configuration of the serving cell, comprising:
the base station determines guard interval length indication information according to the length of the guard interval of the serving cell, and specifically:
when the length of the guard interval of the serving cell is T symbol Setting 1 information bit corresponding to the guard interval length indication information to 0;
When the length of the guard interval of the serving cell is 2T symbol Setting 1 information bit corresponding to the guard interval length indication information to 1;
the T is symbol Is the symbol length of the serving cell.
28. The method according to any of claims 17 to 22, wherein the configuration of the guard interval comprises a length of a guard interval, the subcarrier spacing of the serving cell belonging to a first set of subcarrier spacings, the first set of subcarrier spacings comprising a first subcarrier spacing Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are both multiples of 15kHz or multiples of 17.5kHz, the first subcarrier spacing is smaller than the second subcarrier spacing, and the length of the guard interval of the serving cell is the same as the length of the guard interval of the serving cell when the subcarrier spacing of the serving cell is the first subcarrier spacing.
29. The method of claim 28, wherein the base station determining the subcarrier spacing of the serving cell comprises:
the base station determines a subcarrier interval of a first bandwidth part of a serving cell and determines a subcarrier interval of a second bandwidth part of the serving cell, wherein the subcarrier interval of the first bandwidth part is the first subcarrier interval, and the subcarrier interval of the second bandwidth part is the second subcarrier interval.
30. The method according to any one of claims 17 to 22, wherein the base station determining the frame structure of the serving cell according to the configuration of the guard interval of the serving cell comprises:
the base station determines the distribution of self-contained subframes in one radio frame of the service cell according to the configuration of the guard interval of the service cell, wherein the self-contained subframes comprise symbols for downlink transmission, the guard interval and symbols for uplink transmission, and the sum of the number of the symbols occupied by the guard interval and the number of the symbols for uplink transmission is a multiple of 2.
31. An apparatus for transmitting information, wherein the apparatus is applied to a user equipment side, and the apparatus comprises:
a processing unit, configured to determine a subcarrier spacing of a serving cell; determining the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell; determining a frame structure of the service cell according to the configuration of the guard interval of the service cell;
and the receiving and transmitting unit is used for transmitting information or receiving information on the service cell according to the frame structure of the service cell.
32. The apparatus for transmitting information according to claim 31, wherein the processing unit is configured to determine a configuration of a guard interval of the serving cell according to a subcarrier interval of the serving cell, specifically:
The processing unit is used for determining the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell;
and determining the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell.
33. The apparatus for transmitting information according to claim 32, wherein the processing unit is configured to determine, according to the subcarrier spacing of the serving cell, a minimum granularity of a guard interval period of the serving cell, specifically:
the processing unit is configured to determine, according to a preset rule, a minimum granularity of a guard interval period of the serving cell according to a subcarrier interval of the serving cell, where the preset rule is:
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n·15kHz, N is a positive integer greater than or equal to 1, t is 1 millisecond; or alternatively, the first and second heat exchangers may be,
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n 1 17.5kHz, N 1 Is a positive integer greater than or equal to 1, t 1 Is 1 millisecond.
34. The apparatus for transmitting information of claim 33, wherein a minimum granularity of a guard interval period of the serving cell is inversely proportional to a subcarrier spacing of the serving cell.
35. The apparatus for transmitting information according to claim 33, wherein the minimum granularity of the guard interval period of the serving cell scales with the subcarrier spacing of the serving cell, and specifically comprises:
if the subcarrier spacing of the serving cell is amplified to the original N 2 The minimum granularity of the guard interval period of the service cell is reduced to 1/N of the original granularity 2 The N is 2 Is a positive number.
36. The apparatus for transmitting information according to claim 31, wherein the processing unit is configured to determine a configuration of a guard interval of the serving cell according to a subcarrier interval of the serving cell, specifically:
the processing unit is used for determining the subframe length of the service cell according to the subcarrier interval of the service cell;
and determining the configuration of the guard interval of the service cell according to the subframe length of the service cell.
37. The apparatus for transmitting information according to claim 31, wherein the processing unit is configured to determine a configuration of a guard interval of the serving cell according to a subcarrier interval of the serving cell, specifically:
The processing unit is used for determining the system parameters of the service cell according to the subcarrier interval of the service cell;
receiving system information according to the system parameters of the service cell, wherein the system information comprises guard interval configuration indication information, and the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell;
and determining the configuration of the guard interval of the service cell according to the guard interval configuration indication information.
38. The apparatus according to any of claims 32 to 35, wherein the processing unit is configured to determine the configuration of the guard interval of the serving cell according to a minimum granularity of the guard interval period of the serving cell, specifically:
the processing unit is configured to receive system information, where the system information includes guard interval configuration indication information, where the guard interval configuration indication information is used to indicate configuration of a guard interval of the serving cell;
and determining the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell and the guard interval configuration indication information.
39. The apparatus for transmitting information according to claim 36, wherein the processing unit is configured to determine the configuration of the guard interval of the serving cell according to the subframe length of the serving cell, specifically:
The processing unit is configured to receive system information, where the system information includes guard interval configuration indication information, where the guard interval configuration indication information is used to indicate configuration of a guard interval of the serving cell;
and determining the configuration of the guard interval of the service cell according to the subframe length of the service cell and the guard interval configuration indication information.
40. The apparatus for transmitting information according to claim 38, wherein the configuration of the guard interval includes a period of a guard interval, the guard interval configuration indication information includes guard interval period indication information, the guard interval period indication information corresponds to a 2-bit information field, and the processing unit is configured to determine the configuration of the guard interval of the serving cell according to a minimum granularity of the guard interval period of the serving cell and the guard interval configuration indication information, specifically:
when the 2 information bits corresponding to the guard interval period indication information are set to 00, the period of the guard interval of the serving cell is T;
when the 2 information bits corresponding to the guard interval period indication information are set to 01, the period of the guard interval of the serving cell is 2T;
When the 2 information bits corresponding to the guard interval period indication information are set to 11, the period of the guard interval of the serving cell is 5T;
and T is the minimum granularity of the guard interval period of the serving cell.
41. The apparatus for transmitting information according to claim 39, wherein the configuration of the guard interval includes a period of a guard interval, the guard interval configuration indication information includes guard interval period indication information, the guard interval period indication information corresponds to a 2-bit information field, and the processing unit is configured to determine the configuration of the guard interval of the serving cell according to a subframe length of the serving cell and the guard interval configuration indication information, specifically:
when the 2 information bits corresponding to the guard interval period indication information are set to 00, the guard interval period of the serving cell is T subframe ；
When the 2 information bits corresponding to the guard interval period indication information are set to 01, the guard interval period of the serving cell is 2T subframe ；
When the 2 information bits corresponding to the guard interval period indication information are set to 11, the guard interval period of the serving cell is 5T subframe ；
The T is subframe And the subframe length of the serving cell.
42. The apparatus for transmitting information according to claim 37, 39, 40 or 41, wherein the configuration of the guard interval includes a length of the guard interval, the guard interval configuration indication information includes guard interval length indication information, and the processing unit is further configured to:
determining the symbol length of the serving cell according to the subcarrier spacing of the serving cell;
and determining the length of the guard interval of the service cell according to the guard interval length indication information and the symbol length of the service cell.
43. The information transmission apparatus according to claim 42, wherein the guard interval length indication information corresponds to a 1-bit information field, and the processing unit is configured to determine a length of a guard interval of the serving cell according to the guard interval length indication information and a symbol length of the serving cell, specifically:
when 1 information bit corresponding to the guard interval length indication information is set to 0, the length of the guard interval of the serving cell is T symbol ；
When 1 information bit corresponding to the guard interval length indication information is set to 1, the length of the guard interval of the serving cell is 2T symbol ；
The T is symbol Is the symbol length of the serving cell.
44. The apparatus for transmitting information according to any one of claims 31 to 37, wherein the configuration of the guard interval comprises a length of the guard interval, and wherein the subcarrier spacing of the serving cell belongs to a first subcarrier spacing set comprising a first subcarrier spacing Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are multiples of 15kHz or multiples of 17.5kHz, the first subcarrier spacing is smaller than the second subcarrier spacing, and the length of the guard interval of the serving cell is the same as the length of the guard interval of the serving cell when the subcarrier spacing of the serving cell is the first subcarrier spacing.
45. The apparatus for transmitting information according to claim 44, wherein the processing unit is configured to determine a subcarrier spacing of a serving cell, specifically:
the processing unit is configured to determine a subcarrier interval of a first bandwidth portion of a serving cell and determine a subcarrier interval of a second bandwidth portion of the serving cell, where the subcarrier interval of the first bandwidth portion is the first subcarrier interval, and the subcarrier interval of the second bandwidth portion is the second subcarrier interval.
46. The apparatus according to any of claims 31 to 37, wherein the processing unit is configured to determine a frame structure of the serving cell according to a configuration of a guard interval of the serving cell, specifically:
the processing unit is configured to determine distribution of self-contained subframes in one radio frame of the serving cell according to configuration of a guard interval of the serving cell, where the self-contained subframes include symbols for downlink transmission, a guard interval, and symbols for uplink transmission, and a sum of a number of symbols occupied by the guard interval and a number of symbols for uplink transmission is a multiple of 2.
47. An information transmission apparatus, wherein the apparatus is applied to a base station side, the apparatus comprising:
a processing unit, configured to determine a subcarrier spacing of a serving cell; determining the configuration of the guard interval of the serving cell according to the subcarrier interval of the serving cell; determining a frame structure of the service cell according to the configuration of the guard interval of the service cell;
and the receiving and transmitting unit is used for transmitting information or receiving information on the service cell according to the frame structure of the service cell.
48. The apparatus for transmitting information of claim 47, wherein the processing unit is configured to determine a configuration of a guard interval of the serving cell according to a subcarrier interval of the serving cell, specifically:
the processing unit is used for determining the minimum granularity of the guard interval period of the serving cell according to the subcarrier interval of the serving cell;
and determining the configuration of the guard interval of the service cell according to the minimum granularity of the guard interval period of the service cell.
49. The information transmission apparatus according to claim 48, wherein the processing unit is configured to determine a minimum granularity of a guard interval period of the serving cell according to a subcarrier interval of the serving cell, specifically:
the processing unit is configured to determine, according to a preset rule, a minimum granularity of a guard interval period of the serving cell according to a subcarrier interval of the serving cell, where the preset rule is:
if the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n·15kHz, N is a positive integer greater than or equal to 1, t is 1 millisecond; or alternatively, the first and second heat exchangers may be,
If the subcarrier spacing of the serving cell is Δf, the minimum granularity of the guard interval period of the serving cell isMillisecond, Δf=n 1 17.5kHz, N 1 Is a positive integer greater than or equal to 1, t 1 Is 1 millisecond.
50. The information transmission apparatus according to claim 49, wherein a minimum granularity of a guard interval period of the serving cell is inversely proportional to a subcarrier spacing of the serving cell.
51. The information transmission apparatus according to claim 49, wherein the minimum granularity of the guard interval period of the serving cell scales with the subcarrier spacing of the serving cell, specifically comprising:
if the subcarrier spacing of the serving cell is amplified to the original N 2 The minimum granularity of the guard interval period of the service cell is reduced to 1/N of the original granularity 2 The N is 2 Is a positive number.
52. The apparatus for transmitting information of claim 47, wherein the processing unit is configured to determine a configuration of a guard interval of the serving cell according to a subcarrier interval of the serving cell, specifically:
the processing unit is used for determining the subframe length of the service cell according to the subcarrier interval of the service cell;
And determining the configuration of the guard interval of the service cell according to the subframe length of the service cell.
53. The apparatus for transmitting information according to any one of claims 47 to 52, wherein the transceiver unit is further configured to,
and transmitting system information, wherein the system information comprises protection interval configuration indication information, and the protection interval configuration indication information is used for indicating the configuration of the protection interval of the service cell.
54. The information transmission apparatus according to claim 53, wherein said processing unit is further configured to:
determining guard interval configuration indication information according to the guard interval configuration of the service cell, wherein the guard interval configuration indication information is used for indicating the configuration of the guard interval of the service cell;
and determining system information according to the protection interval configuration indication information, wherein the system information comprises the protection interval configuration indication information.
55. The apparatus for transmitting information according to claim 54, wherein the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, the guard interval period indication information corresponds to a 2-bit information field, and the processing unit is configured to determine the guard interval configuration indication information according to the guard interval configuration of the serving cell, and includes:
The processing unit is configured to determine guard interval period indication information according to a guard interval period of the serving cell, where the guard interval period indication information specifically includes:
when the period of the guard interval of the serving cell is T, setting 2 information bits corresponding to the guard interval period indication information to be 00;
when the period of the guard interval of the serving cell is 2T, setting 2 information bits corresponding to the guard interval period indication information to 01;
setting 2 information bits corresponding to the guard interval period indication information to 11 when the period of the guard interval of the serving cell is 5T;
and T is the minimum granularity of the guard interval period of the serving cell.
56. The apparatus for transmitting information according to claim 54, wherein the configuration of the guard interval includes a period of the guard interval, the guard interval configuration indication information includes guard interval period indication information, the guard interval period indication information corresponds to a 2-bit information field, and the processing unit is configured to determine the guard interval configuration indication information according to the guard interval configuration of the serving cell, and includes:
the processing unit is configured to determine guard interval period indication information according to a guard interval period of the serving cell, where the guard interval period indication information specifically includes:
When the period of the guard interval of the serving cell is T subframe Setting 2 information bits corresponding to the guard interval period indication information to 00;
when the period of the guard interval of the serving cell is 2T subframe Setting 2 information bits corresponding to the guard interval period indication information to 01;
when the period of the guard interval of the serving cell is 5T subframe Setting 2 information bits corresponding to the guard interval period indication information to 11;
the T is subframe And the subframe length of the serving cell.
57. The apparatus for transmitting information according to claim 54, wherein the configuration of the guard interval includes a length of the guard interval, the guard interval configuration indication information includes guard interval length indication information, the guard interval length indication information corresponds to a 1-bit information field, and the processing unit is configured to determine the guard interval configuration indication information according to the guard interval configuration of the serving cell, and includes:
the processing unit is configured to determine guard interval length indication information according to the length of the guard interval of the serving cell, where the guard interval length indication information specifically includes:
when the length of the guard interval of the serving cell is T symbol Setting 1 information bit corresponding to the guard interval length indication information to 0;
When the length of the guard interval of the serving cell is 2T symbol Setting 1 information bit corresponding to the guard interval length indication information to 1;
the T is symbol Is the symbol length of the serving cell.
58. The apparatus for transmitting information according to any one of claims 47 to 52, wherein the configuration of the guard interval includes a length of the guard interval, and the subcarrier spacing of the serving cell belongs to a first subcarrier spacing set including a first subcarrier spacing Δf 1 And a second subcarrier spacing deltaf 2 The first subcarrier spacing and the second subcarrier spacing are both multiples of 15kHz or multiples of 17.5kHz, the first subcarrier spacing is smaller than the second subcarrier spacing, and the length of the guard interval of the serving cell is the same as the length of the guard interval of the serving cell when the subcarrier spacing of the serving cell is the first subcarrier spacing.
59. The apparatus for transmitting information of claim 58, wherein the processing unit is configured to determine a subcarrier spacing of a serving cell, specifically:
The processing unit is configured to determine a subcarrier interval of a first bandwidth portion of a serving cell and determine a subcarrier interval of a second bandwidth portion of the serving cell, where the subcarrier interval of the first bandwidth portion is the first subcarrier interval, and the subcarrier interval of the second bandwidth portion is the second subcarrier interval.
60. The apparatus for transmitting information according to any one of claims 47 to 52, wherein the processing unit is configured to determine a frame structure of the serving cell according to a configuration of a guard interval of the serving cell, specifically:
the processing unit is configured to determine distribution of self-contained subframes in one radio frame of the serving cell according to configuration of a guard interval of the serving cell, where the self-contained subframes include symbols for downlink transmission, a guard interval, and symbols for uplink transmission, and a sum of a number of symbols occupied by the guard interval and a number of symbols for uplink transmission is a multiple of 2.
61. A communication device, characterized in that it comprises a processor configured to perform the method according to any of claims 1 to 30.
62. A computer-readable storage medium comprising instructions which, when executed by a processor, cause the method according to any one of claims 1 to 30 to be implemented.
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