[go: up one dir, main page]

CN114449595B - Multi-carrier scheduling method and system, base station and terminal for multi-carrier scheduling - Google Patents

Multi-carrier scheduling method and system, base station and terminal for multi-carrier scheduling Download PDF

Info

Publication number
CN114449595B
CN114449595B CN202011204074.9A CN202011204074A CN114449595B CN 114449595 B CN114449595 B CN 114449595B CN 202011204074 A CN202011204074 A CN 202011204074A CN 114449595 B CN114449595 B CN 114449595B
Authority
CN
China
Prior art keywords
carrier
dci
carrier scheduling
unified
indication information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011204074.9A
Other languages
Chinese (zh)
Other versions
CN114449595A (en
Inventor
佘小明
朱剑驰
杨姗
陈鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Telecom Corp Ltd
Original Assignee
China Telecom Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Telecom Corp Ltd filed Critical China Telecom Corp Ltd
Priority to CN202011204074.9A priority Critical patent/CN114449595B/en
Publication of CN114449595A publication Critical patent/CN114449595A/en
Application granted granted Critical
Publication of CN114449595B publication Critical patent/CN114449595B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • 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
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The disclosure provides a multi-carrier scheduling method and system, a base station and a terminal for multi-carrier scheduling, and relates to the field of wireless communication. The base station informs the terminal of a multi-carrier scheduling scheme through RRC signaling to instruct the terminal to receive and analyze the DCI on the PDCCH according to the multi-carrier scheduling scheme; the base station sends DCI for multi-carrier scheduling to the terminal on the PDCCH according to a multi-carrier scheduling scheme so as to instruct the terminal to receive or send data on multi-carriers according to the DCI; the DCI comprises resource indication information of each multi-carrier and unified joint coding indication information of the multi-carriers. Therefore, the coding indication of the multiple carriers can be realized through the unified joint coding indication information of the multiple carriers, so that the control signaling overhead in the multi-carrier scheduling is effectively reduced, and the scheduling freedom degree and the utilization rate of a system frequency spectrum are further improved.

Description

Multi-carrier scheduling method and system, base station and terminal for multi-carrier scheduling
Technical Field
The present disclosure relates to the field of wireless communications, and in particular, to a method and system for multi-carrier scheduling, and a base station and a terminal for multi-carrier scheduling.
Background
In the fifth generation mobile communication technology, when a New air interface (NR) performs high-frequency and low-frequency networking based on a dynamic spectrum sharing (Dynamic Spectrum Sharing, DSS) or carrier aggregation (Carrier Aggregation, CA) technology, data transmission needs to be performed on multiple carriers at the same time.
In some related art, a base station notifies a terminal of data transmission information such as a time-frequency position, a code modulation scheme, retransmission information, and the like of data using an independent PDCCH (Physical Downlink Control Channel ) DCI (Downlink Control Information, downlink control information) for each of a plurality of carriers.
Considering that the coverage performance of the low-frequency main carrier is better, each PDCCH DCI of the multiple carriers may be transmitted on the low-frequency main carrier.
The inventor finds that when all PDCCH DCIs of a plurality of carriers are transmitted on a low-frequency main carrier, on one hand, the PDCCH control signaling overhead of the plurality of carriers is limited due to the fact that the bandwidth of the low-frequency carrier is smaller and the resources are limited, the scheduling freedom degree is reduced, and on the other hand, the PDCCH control signaling of the plurality of carriers occupies more system resources, corresponding data resources are reduced, and the utilization rate of a system frequency spectrum is reduced.
Disclosure of Invention
In order to solve the above-mentioned problem, embodiments of the present disclosure propose a multi-carrier scheduling scheme.
In the embodiment of the disclosure, a base station informs a terminal of a multi-carrier scheduling scheme through RRC signaling, and sends enhanced PDCCH DCI for multi-carrier scheduling to the terminal according to the multi-carrier scheduling scheme, wherein the enhanced PDCCH DCI comprises respective resource indication information of multi-carriers and unified joint coding indication information of the multi-carriers, so that the coding indication of the multi-carriers can be realized through the unified joint coding indication information of the multi-carriers, the control signaling overhead in multi-carrier scheduling is effectively reduced, and the scheduling freedom degree and the utilization rate of a system spectrum are further improved.
Some embodiments of the present disclosure provide a multi-carrier scheduling method, including:
The base station informs a terminal of a multi-carrier scheduling scheme through Radio Resource Control (RRC) signaling to instruct the terminal to receive and analyze Downlink Control Information (DCI) on a Physical Downlink Control Channel (PDCCH) according to the multi-carrier scheduling scheme;
the base station sends DCI for multi-carrier scheduling to the terminal on the PDCCH according to the multi-carrier scheduling scheme so as to instruct the terminal to receive or send data on multi-carriers according to the DCI;
The DCI comprises resource indication information of each of the multiple carriers and unified joint coding indication information of the multiple carriers.
In some embodiments, the multi-carrier scheduling scheme includes a first multi-carrier scheduling scheme, the DCI includes a first DCI corresponding to the first multi-carrier scheduling scheme, the first DCI including at least one extended field carrying respective resource indication information of the multi-carriers and at least one joint coding indication field carrying joint coding indication information unified by the multi-carriers.
In some embodiments, the at least one extension domain comprises: a carrier indication field, a frequency domain resource field, and a time domain resource field, wherein the carrier indication field is configured to include a carrier indicator of a respective multi-carrier, the frequency domain resource field is configured to include a frequency domain resource of a respective multi-carrier, and the time domain resource field is configured to include a time domain resource of a respective multi-carrier.
In some embodiments, the at least one jointly encoded indication field comprises: a modulation and coding field configured to include multi-carrier unified modulation and coding information, a retransmission information indication field configured to include multi-carrier unified retransmission information, and a redundancy version field configured to include multi-carrier unified redundancy version.
In some embodiments, the at least one extension domain comprises: a carrier indication field configured to include a carrier indicator of each of the multiple carriers and a frequency domain resource field configured to include frequency domain resources of each of the multiple carriers.
In some embodiments, the at least one jointly encoded indication field comprises: a time domain resource domain configured to include multi-carrier unified time domain resources, a modulation and coding domain configured to include multi-carrier unified modulation and coding information, a retransmission information indication domain configured to include multi-carrier unified retransmission information, and a redundancy version domain configured to include multi-carrier unified redundancy versions.
In some embodiments, the multi-carrier scheduling scheme includes a second multi-carrier scheduling scheme, the DCI includes a second DCI and a third DCI corresponding to the second multi-carrier scheduling scheme, the second DCI includes resource indication information of a primary carrier in a multi-carrier and multi-carrier unified joint coding indication information, and the third DCI includes resource indication information of a corresponding non-primary carrier in the multi-carrier, wherein the coding indication information of the non-primary carrier uses the multi-carrier unified joint coding indication information in the second DCI.
In some embodiments, the base station transmitting DCI for multi-carrier scheduling to the terminal includes: and the base station transmits DCI for multi-carrier scheduling on the PDCCH of the low-frequency main carrier in the multi-carriers according to the multi-carrier scheduling scheme.
In some embodiments, the resource indication information includes: the carrier indicator, the frequency domain resource and the time domain resource, and the joint coding indication information includes: modulation and coding information, retransmission information, and redundancy versions.
In some embodiments, the resource indication information includes: the carrier indicator and the frequency domain resource, and the joint coding indication information includes: time domain resources, modulation and coding information, retransmission information, and redundancy versions.
Some embodiments of the present disclosure provide a multi-carrier scheduling method, including:
the terminal receives a Radio Resource Control (RRC) signaling sent by the base station, and acquires a multi-carrier scheduling scheme from the RRC signaling;
The terminal receives and analyzes Downlink Control Information (DCI) on a Physical Downlink Control Channel (PDCCH) according to the multi-carrier scheduling scheme, wherein the DCI comprises respective resource indication information of multi-carriers and unified joint coding indication information of the multi-carriers;
and the terminal receives or transmits data on multiple carriers according to the DCI.
In some embodiments, the terminal receives and parses DCI on the PDCCH of the low frequency primary carrier of the multi-carrier.
Some embodiments of the present disclosure propose a base station for multi-carrier scheduling, comprising:
a memory; and
A processor coupled to the memory, the processor configured to perform a multi-carrier scheduling method based on instructions stored in the memory.
Some embodiments of the present disclosure propose a terminal for multi-carrier scheduling, comprising:
a memory; and
A processor coupled to the memory, the processor configured to perform a multi-carrier scheduling method based on instructions stored in the memory.
Some embodiments of the present disclosure propose a system for multi-carrier scheduling, comprising: a base station; and a terminal.
Some embodiments of the present disclosure propose a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of a multi-carrier scheduling method.
Drawings
The drawings that are required for use in the description of the embodiments or the related art will be briefly described below. The present disclosure will be more clearly understood from the following detailed description with reference to the accompanying drawings.
It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without inventive faculty.
Fig. 1 illustrates a flow diagram of a multi-carrier scheduling method of some embodiments of the present disclosure.
Fig. 2 illustrates a scheduling diagram employing a first multi-carrier scheduling scheme in accordance with some embodiments of the present disclosure.
Fig. 3 illustrates a scheduling diagram employing a second multicarrier scheduling scheme in accordance with some embodiments of the present disclosure.
Fig. 4 illustrates a flow diagram of a downlink multi-carrier scheduling method according to some embodiments of the disclosure.
Fig. 5 illustrates a flow diagram of an uplink multi-carrier scheduling method according to some embodiments of the disclosure.
Fig. 6 is a schematic diagram of a base station for multi-carrier scheduling according to some embodiments of the present disclosure.
Fig. 7 is a schematic structural diagram of a terminal for multi-carrier scheduling according to some embodiments of the present disclosure.
Fig. 8 is a schematic diagram of a multi-carrier scheduling system according to some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure.
Unless specifically stated otherwise, the descriptions of "first," "second," "third," etc. in this disclosure are used for distinguishing between different objects and not for indicating a meaning of size or timing, etc.
Fig. 1 illustrates a flow diagram of a multi-carrier scheduling method of some embodiments of the present disclosure.
As shown in fig. 1, the multi-carrier scheduling method of this embodiment includes: steps 110-150.
In step 110, the base station informs the terminal of the multi-carrier scheduling scheme through RRC (Radio Resource Control ) signaling to instruct the terminal to receive and parse the DCI on the PDCCH according to the multi-carrier scheduling scheme.
The multi-carrier scheduling scheme includes, for example, the first multi-carrier scheduling scheme and the second multi-carrier scheduling scheme proposed in the present disclosure, and may further include a legacy carrier scheduling scheme (set to a third multi-carrier scheduling scheme). The first multi-carrier scheduling scheme is a scheme of indicating multi-carrier scheduling information by adopting the same DCI, and the second multi-carrier scheduling scheme is a scheme of indicating multi-carrier scheduling information by adopting mixed DCI. The first/second multi-carrier scheduling scheme will be described in detail later in connection with DCI.
In step 120, the terminal receives the RRC signaling sent by the base station, and acquires a multi-carrier scheduling scheme from the RRC signaling.
In step 130, the base station transmits DCI for multi-carrier scheduling to the terminal on the PDCCH according to the multi-carrier scheduling scheme to instruct the terminal to receive or transmit data on the multi-carriers according to the DCI.
The DCI comprises resource indication information of each multi-carrier and unified joint coding indication information of the multi-carriers. That is, each carrier in the multi-carrier has its own resource indication information, and all carriers in the multi-carrier share a unified joint coding indication information. Thus, the data transmitted on the multiple carriers when the data is transmitted on the basis of the multiple carriers between the base station and the terminal adopts unified joint coding information (such as modulation and coding information, retransmission information, redundancy version and the like).
In some embodiments, the resource indication information includes: the carrier indicator, the frequency domain resource and the time domain resource, and the joint coding indication information includes: modulation and coding information, retransmission information (e.g., retransmission processes, etc.), and redundancy versions. In other embodiments, the resource indication information includes: the carrier indicator and the frequency domain resource, and the joint coding indication information includes: time domain resources, modulation and coding information, retransmission information, and redundancy versions.
In some embodiments, when the multi-carrier scheduling scheme is a first multi-carrier scheduling scheme, the DCI is a first DCI corresponding to the first multi-carrier scheduling scheme, the first DCI including at least one extended domain carrying respective resource indication information of the multi-carriers and at least one joint coding indication domain carrying joint coding indication information unified by the multi-carriers. Thus, the scheduling of the multi-carriers is achieved through the same DCI (first DCI).
In some embodiments of the first multi-carrier scheduling scheme, as shown in table 1, the at least one extension field comprises: a carrier indication field, a frequency domain resource field, and a time domain resource field, wherein the carrier indication field is configured to include a carrier indicator of each of the multiple carriers, the frequency domain resource field is configured to include a frequency domain resource of each of the multiple carriers, and the time domain resource field is configured to include a time domain resource of each of the multiple carriers; the at least one joint coding indication field comprises: a modulation and coding field, a retransmission information indication field, and a redundancy version field, wherein the modulation and coding field is configured to include multi-carrier unified modulation and coding information, the retransmission information indication field is configured to include multi-carrier unified retransmission information, and the redundancy version field is configured to include multi-carrier unified redundancy version.
Table 1 is illustrated by taking a schedule of 2 carriers (carrier 1 and carrier 2) as an example, and those skilled in the art will understand that the schedule may also be a schedule of 3 carriers, 4 carriers, or more.
TABLE 1
In other embodiments of the first multi-carrier scheduling scheme, as shown in table 2, the at least one extension field comprises: a carrier indication field configured to include respective carrier indicators of the multi-carriers and a frequency domain resource field configured to include respective frequency domain resources of the multi-carriers; the at least one joint coding indication field comprises: a time domain resource domain, a modulation and coding domain, a retransmission information indication domain and a redundancy version domain, wherein the time domain resource domain is configured to include a multi-carrier unified time domain resource, the modulation and coding domain is configured to include multi-carrier unified modulation and coding information, the retransmission information indication domain is configured to include multi-carrier unified retransmission information, and the redundancy version domain is configured to include multi-carrier unified redundancy version.
Wherein table 2 is illustrated by way of example of a2 carrier (carrier 1 and carrier 2) schedule, and those skilled in the art will appreciate that a3 carrier, 4 carrier or more multicarrier schedule is also possible.
TABLE 2
The first multi-carrier scheduling scheme of the embodiment shown in table 2 may be applicable to a scenario where multiple carrier frequencies are close.
If greater scheduling freedom is desired, a first multi-carrier scheduling scheme of the embodiment shown in Table 1 may be employed; if less signaling overhead is desired and multiple carrier frequencies are similar, the first multi-carrier scheduling scheme of the embodiment shown in table 2 may be employed.
In some embodiments, when the multi-carrier scheduling scheme is a second multi-carrier scheduling scheme, the DCI includes a second DCI and a third DCI corresponding to the second multi-carrier scheduling scheme. As shown in table 3, the second DCI (also referred to as normal DCI) includes resource indication information of a primary carrier among the multiple carriers and joint coding indication information unified by the multiple carriers. As shown in table 4, the third DCI (also referred to as fallback (fallback) DCI or compressed DCI) includes resource indication information of a corresponding non-primary carrier of the multi-carriers. The coding indication information of the non-main carrier uses the unified joint coding indication information of the multiple carriers in the second DCI. Thus, the scheduling of the multi-carrier is achieved by mixing the DCIs (the second DCI and the third DCI).
TABLE 3 Table 3
TABLE 4 Table 4
In some embodiments, the base station transmits DCI for multi-carrier scheduling on a PDCCH of a low frequency primary carrier of the multi-carriers. For example, the base station transmits a first DCI on a PDCCH of a low frequency primary carrier of the multiple carriers. For another example, the base station transmits the second DCI and the third DCI on a PDCCH of a low frequency primary carrier of the multiple carriers. Therefore, the coverage performance of DCI transmission is improved by utilizing the good coverage performance of the low-frequency carrier; in addition, the multi-carrier scheduling scheme disclosed by the invention has the advantages of low control signaling overhead and suitability for multi-carrier scheduling information transmission scenes under the condition of limited low-frequency carrier resources.
In other embodiments, the base station transmits the second DCI on a PDCCH of a low frequency primary carrier of the multiple carriers and the third DCI on a PDCCH of a high frequency non-carrier of the multiple carriers. Therefore, the DCI overall transmission performance is improved by utilizing the good coverage performance of the low-frequency carrier and the abundant transmission resources of the high-frequency carrier.
In step 140, the terminal receives and parses the DCI on the PDCCH according to the multi-carrier scheduling scheme.
If the first multi-carrier scheduling scheme is adopted, the terminal receives and analyzes the first DCI; and if the second multi-carrier scheduling scheme is adopted, the terminal receives and analyzes the second DCI and the third DCI.
In step 150, the terminal receives or transmits data on multiple carriers according to the DCI.
For example, the terminal determines a carrier occupied by receiving data or transmitting data and frequency domain resources and time domain resources according to the carrier indicator, the frequency domain resources and the time domain resources in the DCI; and determining the modulation mode, the coding mode, the redundancy version, the retransmission process corresponding to the retransmission data and other information of the received data or the transmitted data according to the modulation and coding information, the retransmission information and the redundancy version.
If the method is applied to a downlink multi-carrier scheduling scene, the terminal receives data sent by the base station on multi-carriers according to DCI; if the method is applied to the uplink multi-carrier scheduling scene, the terminal sends data to the base station on the multi-carrier according to the DCI. These two multicarrier scheduling scenarios will be described separately below. Wherein, downlink user data can be transmitted between the base station and the terminal through a PDSCH (Physical Downlink SHARED CHANNEL ).
Fig. 2 illustrates a scheduling diagram employing a first multi-carrier scheduling scheme in accordance with some embodiments of the present disclosure. Fig. 3 illustrates a scheduling diagram employing a second multicarrier scheduling scheme in accordance with some embodiments of the present disclosure.
The base station informs the terminal of a multi-carrier scheduling scheme through RRC signaling, and sends enhanced PDCCH DCI for multi-carrier scheduling to the terminal according to the multi-carrier scheduling scheme, wherein the enhanced PDCCH DCI comprises respective resource indication information of multi-carriers and unified joint coding indication information of the multi-carriers, so that the coding indication of the plurality of carriers can be realized through the unified joint coding indication information of the multi-carriers, the control signaling overhead in multi-carrier scheduling is effectively reduced, and the scheduling freedom degree and the utilization rate of a system spectrum are further improved.
Fig. 4 illustrates a flow diagram of a downlink multi-carrier scheduling method according to some embodiments of the disclosure.
As shown in fig. 4, the downlink multi-carrier scheduling method includes: steps 410-450.
In step 410, the base station informs the terminal of the multi-carrier scheduling scheme through RRC signaling to instruct the terminal to receive and parse the DCI on the PDCCH according to the multi-carrier scheduling scheme.
In step 420, the terminal receives the RRC signaling sent by the base station, and acquires a multi-carrier scheduling scheme from the RRC signaling.
In step 430, the base station sends DCI for multi-carrier scheduling to the terminal on the PDCCH according to the multi-carrier scheduling scheme, so as to instruct the terminal to receive data on the multi-carriers according to the DCI, where the DCI includes resource indication information of each of the multi-carriers and joint coding indication information unified by the multi-carriers.
In step 440, the base station processes and transmits data on corresponding resources (such as carrier, frequency domain resources, time domain resources, etc.) according to the DCI in a corresponding format (such as modulation, coding, retransmission, etc.).
In step 450, the terminal receives and parses the DCI on the PDCCH according to the multi-carrier scheduling scheme.
In step 460, the terminal receives and demodulates the data in a corresponding format (e.g., modulation mode, coding mode, retransmission mode, etc.) on corresponding resources (e.g., carrier, frequency domain resource, time domain resource, etc.) according to the DCI.
For details of the same steps as those of the embodiment of fig. 1, reference may be made to the embodiment of fig. 1, and details thereof are not repeated here.
Therefore, the control signaling overhead in the downlink multi-carrier scheduling is effectively reduced, and the scheduling freedom degree and the utilization rate of a system spectrum are further improved.
Fig. 5 illustrates a flow diagram of an uplink multi-carrier scheduling method according to some embodiments of the disclosure.
As shown in fig. 5, the uplink multi-carrier scheduling method includes: steps 510-550.
In step 510, the base station notifies the terminal of the multi-carrier scheduling scheme through RRC signaling to instruct the terminal to receive and parse the DCI on the PDCCH according to the multi-carrier scheduling scheme.
In step 520, the terminal receives the RRC signaling sent by the base station, and acquires a multi-carrier scheduling scheme from the RRC signaling.
In step 530, the base station transmits DCI for multi-carrier scheduling to the terminal on the PDCCH according to the multi-carrier scheduling scheme, so as to instruct the terminal to transmit data on the multi-carriers according to the DCI, where the DCI includes resource indication information of each of the multi-carriers and joint coding indication information unified by the multi-carriers.
In step 540, the terminal receives and parses the DCI on the PDCCH according to the multi-carrier scheduling scheme.
In step 550, the terminal processes and transmits data on corresponding resources (such as carrier, frequency domain resources, time domain resources, etc.) according to the DCI in a corresponding format (such as modulation, coding, retransmission, etc.).
In step 560, the base station receives and demodulates the data in a corresponding format (e.g., modulation mode, coding mode, retransmission mode, etc.) on a corresponding resource (e.g., carrier, frequency domain resource, time domain resource, etc.) according to the DCI.
For details of the same steps as those of the embodiment of fig. 1, reference may be made to the embodiment of fig. 1, and details thereof are not repeated here.
Therefore, the control signaling overhead in the uplink multi-carrier scheduling is effectively reduced, and the scheduling freedom degree and the utilization rate of a system spectrum are further improved.
Fig. 6 is a schematic diagram of a base station for multi-carrier scheduling according to some embodiments of the present disclosure.
As shown in fig. 6, the base station 600 of this embodiment includes: a memory 610 and a processor 620 coupled to the memory 610, the processor 620 being configured to perform the multi-carrier scheduling method, including the downlink and uplink multi-carrier scheduling methods, performed by the base station in any of the foregoing embodiments based on instructions stored in the memory 610.
The memory 610 may include, for example, system memory, fixed nonvolatile storage media, and the like. The system memory stores, for example, an operating system, application programs, boot Loader (Boot Loader), and other programs.
Fig. 7 is a schematic structural diagram of a terminal for multi-carrier scheduling according to some embodiments of the present disclosure.
As shown in fig. 7, the terminal 700 of this embodiment includes: a memory 710 and a processor 720 coupled to the memory 710, the processor 720 being configured to perform the multi-carrier scheduling method, including the downlink and uplink multi-carrier scheduling methods, performed by the terminal in any of the foregoing embodiments based on instructions stored in the memory 710.
The memory 710 may include, for example, system memory, fixed nonvolatile storage media, and so forth. The system memory stores, for example, an operating system, application programs, boot Loader (Boot Loader), and other programs.
Fig. 8 is a schematic diagram of a multi-carrier scheduling system according to some embodiments of the present disclosure.
As shown in fig. 8, the multicarrier scheduling system 800 of this embodiment includes: a base station 600 and a terminal 700 for multi-carrier scheduling.
The disclosed embodiments also propose a non-transitory computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the multi-carrier scheduling method in the various embodiments.
It will be appreciated by those skilled in the art that embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more non-transitory computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flowchart and/or block of the flowchart illustrations and/or block diagrams, and combinations of flowcharts and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing description of the preferred embodiments of the present disclosure is not intended to limit the disclosure, but rather to enable any modification, equivalent replacement, improvement or the like, which fall within the spirit and principles of the present disclosure.

Claims (15)

1. A multi-carrier scheduling method, comprising:
The base station informs a terminal of a multi-carrier scheduling scheme through Radio Resource Control (RRC) signaling to instruct the terminal to receive and analyze Downlink Control Information (DCI) on a Physical Downlink Control Channel (PDCCH) according to the multi-carrier scheduling scheme;
the base station sends DCI for multi-carrier scheduling to the terminal on the PDCCH according to the multi-carrier scheduling scheme so as to instruct the terminal to receive or send data on multi-carriers according to the DCI;
Wherein the DCI comprises resource indication information of each of the multiple carriers and unified joint coding indication information of the multiple carriers,
Wherein, at least one joint coding indication domain for bearing joint coding indication information of multi-carrier unification comprises:
a modulation and coding field configured to include multi-carrier unified modulation and coding information, a retransmission information indication field configured to include multi-carrier unified retransmission information, and a redundancy version field configured to include multi-carrier unified redundancy version;
Or alternatively
A time domain resource domain configured to include multi-carrier unified time domain resources, a modulation and coding domain configured to include multi-carrier unified modulation and coding information, a retransmission information indication domain configured to include multi-carrier unified retransmission information, and a redundancy version domain configured to include multi-carrier unified redundancy versions.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
The multi-carrier scheduling scheme includes a first multi-carrier scheduling scheme,
The DCI includes a first DCI corresponding to a first multi-carrier scheduling scheme,
The first DCI comprises at least one extension domain for bearing respective resource indication information of multiple carriers and at least one joint coding indication domain for bearing joint coding indication information unified by the multiple carriers.
3. The method of claim 2, wherein the step of determining the position of the substrate comprises,
The at least one extension domain includes: a carrier indication field, a frequency domain resource field, and a time domain resource field, wherein the carrier indication field is configured to include a carrier indicator of a respective multi-carrier, the frequency domain resource field is configured to include a frequency domain resource of a respective multi-carrier, and the time domain resource field is configured to include a time domain resource of a respective multi-carrier.
4. The method of claim 2, wherein the step of determining the position of the substrate comprises,
The at least one extension domain includes: a carrier indication field configured to include a carrier indicator of each of the multiple carriers and a frequency domain resource field configured to include frequency domain resources of each of the multiple carriers.
5. The method of claim 1, wherein the step of determining the position of the substrate comprises,
The multi-carrier scheduling scheme includes a second multi-carrier scheduling scheme,
The DCI includes a second DCI and a third DCI corresponding to a second multi-carrier scheduling scheme,
The second DCI includes resource indication information of a primary carrier in a multi-carrier and joint coding indication information unified by the multi-carrier,
The third DCI includes resource indication information of a corresponding non-primary carrier in multiple carriers, where the coding indication information of the non-primary carrier uses unified joint coding indication information of multiple carriers in the second DCI.
6. The method of claim 1, wherein the step of determining the position of the substrate comprises,
The base station transmitting DCI for multi-carrier scheduling to the terminal includes:
and the base station transmits DCI for multi-carrier scheduling on the PDCCH of the low-frequency main carrier in the multi-carriers according to the multi-carrier scheduling scheme.
7. The method according to any one of claims 1 to 6, wherein,
The resource indication information includes: the carrier indicator, the frequency domain resource and the time domain resource, and the joint coding indication information includes: modulation and coding information, retransmission information and redundancy versions;
Or alternatively
The resource indication information includes: the carrier indicator and the frequency domain resource, and the joint coding indication information includes: time domain resources, modulation and coding information, retransmission information, and redundancy versions.
8. A multi-carrier scheduling method, comprising:
the terminal receives a Radio Resource Control (RRC) signaling sent by the base station, and acquires a multi-carrier scheduling scheme from the RRC signaling;
The terminal receives and analyzes Downlink Control Information (DCI) on a Physical Downlink Control Channel (PDCCH) according to the multi-carrier scheduling scheme, wherein the DCI comprises respective resource indication information of multi-carriers and unified joint coding indication information of the multi-carriers;
The terminal receives or transmits data on the multi-carrier according to the DCI,
Wherein, at least one joint coding indication domain for bearing joint coding indication information of multi-carrier unification comprises:
a modulation and coding field configured to include multi-carrier unified modulation and coding information, a retransmission information indication field configured to include multi-carrier unified retransmission information, and a redundancy version field configured to include multi-carrier unified redundancy version;
Or alternatively
A time domain resource domain configured to include multi-carrier unified time domain resources, a modulation and coding domain configured to include multi-carrier unified modulation and coding information, a retransmission information indication domain configured to include multi-carrier unified retransmission information, and a redundancy version domain configured to include multi-carrier unified redundancy versions.
9. The method of claim 8, wherein the step of determining the position of the first electrode is performed,
The multi-carrier scheduling scheme includes a first multi-carrier scheduling scheme,
The DCI includes a first DCI corresponding to a first multi-carrier scheduling scheme,
The first DCI comprises at least one extension domain for bearing respective resource indication information of multiple carriers and at least one joint coding indication domain for bearing joint coding indication information unified by the multiple carriers.
10. The method of claim 8, wherein the step of determining the position of the first electrode is performed,
The multi-carrier scheduling scheme includes a second multi-carrier scheduling scheme,
The DCI includes a second DCI and a third DCI corresponding to a second multi-carrier scheduling scheme,
The second DCI includes resource indication information of a primary carrier in a multi-carrier and joint coding indication information unified by the multi-carrier,
The third DCI includes resource indication information of a corresponding non-primary carrier in multiple carriers, where the coding indication information of the non-primary carrier uses unified joint coding indication information of multiple carriers in the second DCI.
11. The method of claim 8, wherein the step of determining the position of the first electrode is performed,
The terminal receives and parses DCI on PDCCH of low frequency primary carrier in multiple carriers.
12. A base station for multi-carrier scheduling, comprising:
a memory; and
A processor coupled to the memory, the processor configured to perform the multi-carrier scheduling method of any one of claims 1-7 based on instructions stored in the memory.
13. A terminal for multi-carrier scheduling, comprising:
a memory; and
A processor coupled to the memory, the processor configured to perform the multi-carrier scheduling method of any one of claims 8-11 based on instructions stored in the memory.
14. A system for multi-carrier scheduling, comprising:
the base station of claim 12; and
The terminal of claim 13.
15. A non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the multi-carrier scheduling method of any of claims 1-11.
CN202011204074.9A 2020-11-02 2020-11-02 Multi-carrier scheduling method and system, base station and terminal for multi-carrier scheduling Active CN114449595B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011204074.9A CN114449595B (en) 2020-11-02 2020-11-02 Multi-carrier scheduling method and system, base station and terminal for multi-carrier scheduling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011204074.9A CN114449595B (en) 2020-11-02 2020-11-02 Multi-carrier scheduling method and system, base station and terminal for multi-carrier scheduling

Publications (2)

Publication Number Publication Date
CN114449595A CN114449595A (en) 2022-05-06
CN114449595B true CN114449595B (en) 2024-08-27

Family

ID=81358181

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011204074.9A Active CN114449595B (en) 2020-11-02 2020-11-02 Multi-carrier scheduling method and system, base station and terminal for multi-carrier scheduling

Country Status (1)

Country Link
CN (1) CN114449595B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115298984A (en) * 2022-06-30 2022-11-04 北京小米移动软件有限公司 Method and device for identifying and configuring downlink control information
WO2025036485A1 (en) * 2023-08-16 2025-02-20 Mediatek Inc. Method and apparatus for two-stage downlink control information scheduling in mobile communications

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103096488A (en) * 2011-10-27 2013-05-08 华为技术有限公司 Method and device of multi-carrier scheduling

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101932027B (en) * 2009-06-19 2014-07-02 中兴通讯股份有限公司 Multiple carrier dispatching method and system
US10700836B2 (en) * 2016-03-11 2020-06-30 Futurewei Technologies, Inc. Multicarrier uplink data with single carrier uplink control
US10448421B2 (en) * 2017-03-20 2019-10-15 Qualcomm Incorporated Cross-carrier scheduling for wireless devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103096488A (en) * 2011-10-27 2013-05-08 华为技术有限公司 Method and device of multi-carrier scheduling

Also Published As

Publication number Publication date
CN114449595A (en) 2022-05-06

Similar Documents

Publication Publication Date Title
JP7460640B2 (en) Frequency domain resource allocation for multi-source transmissions
CN103891341B (en) Base station apparatus and sending method
CN111148242B (en) Information transmission method and device
US11677529B2 (en) Data signal transmission in a wireless communication system with reduced end-to-end latency
KR101671292B1 (en) Method and apparatus for requesting and providing channel quality indicator(cqi)
JP5462276B2 (en) Method for allocating resources to user terminals, base station, user terminals, and communication network therefor
WO2017024559A1 (en) Data transmission method, terminal equipment, base station, and communication system
JPWO2017169589A1 (en) User device and communication method
US12063654B2 (en) Uplink control information transmission method and device
US20180343084A1 (en) Transmission processing method and device
US11923982B2 (en) Transmission device, reception device, transmission method, and reception method
WO2019029579A1 (en) Method, chip and system for wireless communication
CN114449595B (en) Multi-carrier scheduling method and system, base station and terminal for multi-carrier scheduling
CN116057880A (en) Method and device for transmitting/receiving control information in wireless cooperative communication system
CA3029776C (en) Data transmission in a wireless communication system with reduced latency
US20220287073A1 (en) Ofdm based wireless communication using flexible resources
CN115866771A (en) Method and device for scheduling carrier waves
EP4271079A1 (en) Terminal and communication method
CN110225588B (en) Signal sending and receiving method and device
CN113098670B (en) Carrier configuration method, device, base station and computer readable storage medium
CN112118079B (en) Method, equipment and system for transmitting uplink control signaling
CN102835164B (en) Method and device for synchronizing resource allocating indication information order in wireless networks
US20240276483A1 (en) Enhanced uplink configured grant
CN110943799B (en) Communication method and device
WO2024060241A1 (en) Frequency domain resource allocation type determination method and apparatus, and device and storage medium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant