CN114902748A

CN114902748A - Sleep indication method and device of auxiliary carrier, terminal and storage medium

Info

Publication number: CN114902748A
Application number: CN202080091185.5A
Authority: CN
Inventors: 左志松; 徐伟杰; 王淑坤
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2022-08-12
Also published as: WO2021189446A1

Abstract

A sleep indication method, device, terminal and storage medium for auxiliary carrier relate to the field of wireless communication. The method comprises the following steps: receiving DCI carried on a PDCCH, the DCI being configured with at least one indication field (510), the indication field being used for indicating a sleep state of a secondary carrier; determining a sleep state of a secondary carrier according to a target indication field of the at least one indication field (520). The method solves the problem how to process when the terminal possibly receives a plurality of sleep indication modes at the same time, and defines the behavior of the terminal so as to improve the accuracy of the sleep indication of the auxiliary carrier.

Description

Sleep indication method and device of auxiliary carrier, terminal and storage medium

Technical Field

The present application relates to the field of wireless communications, and in particular, to a method, an apparatus, a terminal, and a storage medium for indicating sleep of a secondary carrier.

Background

In a 5G New Radio (NR), a sleep (dormant) mode of power saving is supported. In the sleep mode, the secondary carrier is in a sleep state, thereby reducing power consumption.

Disclosure of Invention

The embodiment of the application provides a sleep indication method, a sleep indication device, a sleep indication terminal and a sleep indication storage medium for auxiliary carriers. The technical scheme is as follows.

According to an aspect of the present application, there is provided a sleep indication method for a secondary carrier, the method including:

receiving DCI carried on a PDCCH, wherein the DCI is configured with at least one indication domain, and the indication domain is used for indicating the sleep state of a secondary carrier;

and determining the sleep state of the auxiliary carrier according to a target indication domain in the at least one indication domain.

According to an aspect of the present application, there is provided a sleep indication apparatus of a secondary carrier, the apparatus including: a receiving module and a determining module;

the receiving module is configured to receive DCI carried on a PDCCH, where the DCI is configured with at least one indication field, and the indication field is used for indicating a sleep state of a secondary carrier;

the determining module is configured to determine a sleep state of the secondary carrier according to a target indication domain of the at least one indication domain.

According to an aspect of the present application, there is provided a terminal, including: a processor; a transceiver coupled to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the method of sleep indication for a secondary carrier as described in the above aspect.

According to an aspect of the present application, there is provided a computer-readable storage medium having stored therein executable instructions that are loaded and executed by the processor to implement the sleep indication method for a secondary carrier as described in the above aspect.

The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:

when the terminal receives the DCI configured with at least one indication domain, one indication domain corresponds to one sleep indication mode, and the sleep state of the auxiliary carrier can be determined through the target indication domain in the at least one indication domain, so that the problem of how to process the terminal when the terminal possibly receives multiple sleep indication modes at the same time is solved, the behavior of the terminal is determined, and the accuracy of the sleep indication of the auxiliary carrier is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a diagram of a DRX mechanism provided by an exemplary embodiment of the present application;

fig. 2 is a schematic diagram of carrier aggregation provided in an exemplary embodiment of the present application;

FIG. 3 is a schematic illustration of a sleep mode provided by an exemplary embodiment of the present application;

FIG. 4 is a block diagram of a communication system provided in an exemplary embodiment of the present application;

fig. 5 is a flowchart of a method for indicating sleep of a secondary carrier according to an exemplary embodiment of the present application;

FIG. 6 is a schematic diagram of a first indication domain and a second indication domain provided by an exemplary embodiment of the present application;

FIG. 7 is a schematic diagram of a first indication domain and a second indication domain provided by an exemplary embodiment of the present application;

FIG. 8 is a schematic diagram of a first indication field and a second indication field provided by an exemplary embodiment of the present application;

fig. 9 is a flowchart of a method for indicating sleep of a secondary carrier according to an exemplary embodiment of the present application;

fig. 10 is a flowchart of a method for determining whether a DCI is a DCI without data scheduling according to an exemplary embodiment of the present application;

fig. 11 is a flowchart of a method for indicating sleep of a secondary carrier according to an exemplary embodiment of the present application;

fig. 12 is a schematic diagram illustrating adjusting a sleep state of a secondary carrier according to an exemplary embodiment of the present application;

fig. 13 is a block diagram illustrating a sleep indication apparatus for a secondary carrier according to an exemplary embodiment of the present application;

fig. 14 is a schematic structural diagram of a terminal according to an exemplary embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

First, terms referred to in the embodiments of the present application are briefly described:

discontinuous Reception (DRX): DRX can allow the terminal to periodically enter a sleep period at some time without monitoring Physical Downlink Control Channel (PDCCH) scheduling information (or PDCCH subframe). And when the terminal needs to monitor the PDCCH scheduling information, the terminal wakes up from the sleep period, so that the terminal can achieve the purpose of saving power.

The basic mechanism of DRX is to configure one DRX cycle (DRX cycle) for a terminal in a Radio Resource Control CONNECTED (RRC _ CONNECTED) state. The DRX cycle consists of "Active Time" and "dormant Time": in the time of an 'activation period', the terminal monitors and receives PDCCH scheduling information; in the 'sleep period' time, the terminal does not receive the data of the downlink channel to save power consumption. As can be seen from fig. 1, in the time domain, time is divided into successive DRX cycles (cycles). When the terminal receives a scheduling message during the 'active period', the terminal starts a DRX Inactivity Timer (DRX-Inactivity Timer) and monitors PDCCH scheduling information in each subframe during the period; if the DRX-Inactivity Timer is running, the terminal still needs to continue monitoring downlink PDCCH subframes until the DRX-Inactivity Timer times out even if the originally configured On Duration time is over.

Carrier aggregation: carrier Aggregation (CA) is a process of aggregating 2 or more Component Carriers (CCs) to support a larger transmission bandwidth. As shown in fig. 2, the CA technology can aggregate 2 to 5 carriers together, thereby realizing a maximum transmission bandwidth of 100MHz and effectively increasing the uplink and downlink transmission rate.

A Primary Cell (PCell) is a Cell in which a terminal performs initial connection establishment, or performs RRC connection reestablishment, or is a Primary Cell designated in a Cell handover process. The PCell is responsible for Radio Resource Control (RRC) communication with the terminal. A Carrier unit corresponding to the PCell is called a Primary Component Carrier (PCC).

A Secondary Cell (SCell) is added at RRC reconfiguration to provide additional radio resources, without any RRC communication between the SCell and the terminal. The Carrier element corresponding to the SCell is referred to as a Secondary Component Carrier (SCC).

There is only one primary carrier at a time, allowing multiple secondary carriers, such as 3 secondary carriers. The network can set the auxiliary carrier which is not used for the time as a sleep state according to the requirement, so that the power consumption of the terminal is reduced; the secondary carrier may also be activated quickly so that the secondary carrier is in a non-sleep state to meet transmission needs. The primary carrier of the terminal cannot be deactivated; the terminal can only perform data transmission on the activated carrier (primary carrier or secondary carrier) and only support a limited measurement on the deactivated carrier (secondary carrier).

A sleep mode: in the sleep mode, the terminal may omit the PDCCH of one carrier or substantially reduce PDCCH monitoring on one carrier. Meanwhile, the terminal only needs to keep some basic signal reception of channel measurement types, such as uplink and downlink synchronization and frequency calibration.

The mechanism by which the NR adjusts the sleep state of the secondary carriers is: by switching to a sleep Bandwidth Part (BWP) or a non-sleep BWP, a certain secondary carrier is caused to enter a sleep state or a non-sleep state, respectively. Specifically, the terminal receives, at a certain time slot, a PDCCH sent by the network device through the primary carrier, and the terminal determines the state of the secondary carrier according to an indication of an indication field in Downlink Control Information (DCI) carried by the PDCCH, and further switches to the sleep BWP or the non-sleep BWP. As shown in fig. 3, the power consumption of the sleep carrier/BWP can be greatly reduced. As shown in fig. 3 (a), most timeslots have power consumption for PDCCH monitoring, Physical Downlink Shared Channel (PDSCH) buffering, and measurement, etc. in the non-sleeping carrier/BWP. As shown in (b) of fig. 3, the sleep carrier/BWP has only power consumption for measurement in some slots, thereby achieving reduction in power consumption of the terminal.

In the related art, there are two possible sleep indication methods for the secondary carrier. When the DCI is non-scheduled (i.e., non-scheduled data), the terminal uses n bits in the DCI as an indication field for indicating the sleep state of the secondary carrier, where n is a positive integer, for example: n is 15. When the DCI is a scheduled (i.e., scheduling data) DCI, the terminal will use the dedicated indication field in the DCI to determine the sleep state of the secondary carrier group.

In the related art, the terminal can use only one sleep indication method of the secondary carrier. When DCI received by a terminal is configured with indication fields corresponding to sleep indication methods for a plurality of secondary carriers, how the terminal determines a sleep state of the secondary carriers has not provided a good solution.

DCI format: the PDCCH may carry a number of different DCI formats. The format of the DCI in the present application may be DCI format 0-1 or DCI format 1-1 (see 3rd Generation Partnership Project (3 GPP) standards 38212-g00 for details), as shown in Table one and Table two:

table one: DCI formats 0-1

Table two: DCI Format 1-1

The DCI format 0-1 is a non-fallback format allocated by uplink scheduling, and the DCI format 1-1 is a non-fallback format allocated by downlink scheduling.

In the present application, the DCI format is not limited, and other formats may be used in addition to the two DCI formats described above.

Fig. 4 shows a block diagram of a communication system provided by an exemplary embodiment of the present application, which may include: an access network 12 and a terminal 13.

Several network devices 120 are included in access network 12. Network device 120 may be a base station, which is a device deployed in an access network to provide wireless communication functionality for terminal devices. The base stations may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different radio access technologies, the names of devices with base station functionality may differ, for example in LTE systems, called eNodeB or eNB; in the 5G NR system, it is called a gbnodeb or a gNB. The description of "base station" may change as communication technology evolves. For convenience of description in the embodiments of the present disclosure, the above-mentioned apparatuses providing the terminal 13 with the wireless communication function are collectively referred to as a network device.

The terminal 13 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem with wireless communication capability, as well as various forms of user equipment, Mobile Stations (MSs), terminals (terminal devices), and so forth. For convenience of description, the above-mentioned devices are collectively referred to as terminal devices. The network device 120 and the terminal 13 communicate with each other through some air interface technology, for example, a Uu interface.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile Communication (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, a LTE Frequency Division Duplex (FDD) System, a LTE Time Division Duplex (TDD) System, an LTE-Advanced Long Term Evolution (LTE-A) System, a New wireless (New Radio, NR) System, an Evolution System of an NR System, an LTE-based Access (LTE-to-non-licensed) System, a UMTS-based Access (UMTS-to-non-licensed) System, a UMTS-UMTS System, a UMTS-Universal Mobile Access (UMTS) System, WiMAX) communication system, Wireless Local Area Network (WLAN), Wireless Fidelity (WiFi), next generation communication system, or other communication system.

Generally, the conventional Communication system supports a limited number of connections and is easy to implement, however, with the development of Communication technology, the mobile Communication system will support not only conventional Communication but also, for example, Device-to-Device (D2D) Communication, Machine-to-Machine (M2M) Communication, Machine Type Communication (MTC), Vehicle-to-Vehicle (V2V) Communication, and Vehicle networking (V2X) system, etc. The embodiments of the present application can also be applied to these communication systems.

Fig. 5 is a flowchart illustrating a sleep indication method for a secondary carrier according to an exemplary embodiment of the present application, where the method may be applied to the terminal 13 shown in fig. 1, and the method includes:

step 510, receiving DCI borne on a PDCCH, the DCI being configured with at least one indication field;

wherein, the indication field is used for indicating the sleep state of the auxiliary carrier.

A Physical Downlink Control Channel (PDCCH) is a Downlink Control Channel that a network device transmits to a terminal through a primary carrier, where the primary carrier is a carrier unit corresponding to a primary cell. The PDCCH carries scheduling and other control information, specifically including at least one of transmission format, resource allocation, uplink scheduling grant, power control and retransmission information. Downlink Control Information (DCI) is a payload carried on a PDCCH. The DCI may or may not schedule data of the primary carrier.

The DCI includes several information fields for indicating different information, and an indication field for indicating a sleep state of a secondary carrier is included in the several information fields. The DCI may be configured with one indication field, or the DCI may also be configured with multiple indication fields, where one indication field corresponds to one sleep indication mode of the secondary carrier, and the application does not limit the number of indication fields configured by the DCI. The indication field is used for indicating the sleep state of the auxiliary carrier, and the number of the auxiliary carriers indicated by one indication field can be one or more. The secondary cell is a cell that provides additional wireless resources for data transmission between the terminal and the network device.

Under the condition that the auxiliary carrier is in a sleep state, the terminal ignores the PDCCH on the auxiliary carrier, or the terminal greatly reduces the monitoring of the PDCCH on the auxiliary carrier, thereby achieving the purpose of energy saving. Referring to (b) of fig. 3 in combination, for the auxiliary carrier in the sleep state, there is only power consumption for measurement in some slots, and there is no power consumption for PDCCH monitoring.

Wherein the DCI includes at least one of a first DCI and a second DCI. The first DCI and the second DCI are different DCIs carried on different PDCCHs. The first DCI and the second DCI are each configured with at least one indication field.

And step 520, determining the sleep state of the auxiliary carrier according to the target indication domain in the at least one indication domain.

In at least one indication domain, a target indication domain exists, and the terminal determines the sleep state of the auxiliary carrier according to the indication of the target indication domain.

Optionally, the terminal receives a DCI (first DCI or second DCI), and determines the sleep state of the secondary carrier through a target indication field in at least one indication field (for example, two indication fields) configured by the DCI; or the terminal receives the two DCIs, and determines the sleep state of the secondary carrier through a target indication domain in at least two indication domains configured by the two DCIs.

And the terminal determines the sleep state of the auxiliary carrier wave through the value of each bit on the target indication field. Optionally, each bit of the target indication field corresponds to one secondary carrier, or each bit of the target indication field corresponds to one carrier group, and one carrier group includes one or more secondary carriers.

Optionally, when the bit is 1, the auxiliary carrier (or carrier group) corresponding to the bit is in a sleep state, and when the bit is 0, the auxiliary carrier (or carrier group) corresponding to the bit is in a non-sleep (normal) state; alternatively, when the bit is 0, the auxiliary carrier (or carrier group) corresponding to the bit is in a sleep state, and when the bit is 1, the auxiliary carrier (or carrier group) corresponding to the bit is in a non-sleep (normal) state.

In summary, in the method provided in this embodiment, when the terminal receives the DCI configured with at least one indication field, one indication field corresponds to one sleep indication manner, and the sleep state of the secondary carrier may be determined by using the target indication field in the at least one indication field, so that a problem of how to handle when the terminal may receive multiple sleep indication manners at the same time is solved, and a behavior of the terminal is determined, thereby improving accuracy of sleep indication of the secondary carrier.

In an alternative embodiment based on fig. 5, the at least one indication field comprises at least one of a first indication field and a second indication field.

Specifically, the first indication field and the second indication field have the following three conditions:

the first condition is as follows: the first indication domain is an information domain dedicated to indicate the sleep state of the secondary carrier in the DCI, the second indication domain is an information domain dedicated to indicate the sleep state of the secondary carrier in the DCI when the DCI is a DCI without data scheduling, and the first indication domain and the second indication domain belong to the same DCI or two different DCIs.

The first indication field and the second indication field are different types of indication fields. When the first indication domain and the second indication domain belong to the same DCI, the first indication domain belongs to the first DCI and the second indication domain belongs to the first DCI, or the first indication domain belongs to the second DCI and the second indication domain belongs to the second DCI. When the first indication domain and the second indication domain belong to two different DCIs, the first indication domain belongs to the first DCI and the second indication domain belongs to the second DCI, or the first indication domain belongs to the second DCI and the second indication domain belongs to the first DCI.

The first indication field may be referred to as a dedicated indication field or a newly added indication field. The DCI may or may not schedule data of the primary carrier. The first indication field is an information field dedicated to indicating a sleep state of the secondary carrier regardless of whether the DCI is a DCI for data scheduling.

Optionally, the first indication field is configured by a higher layer RRC, such as: the n carrier groupings of the supplementary carriers are defined by the RRC parameter "Scell-groups-for-downlink-with-active-time" and which supplementary carriers are included in each carrier grouping. The n carrier groups correspond to the n bits of the first indication field one by one, and n is a positive integer. Optionally, the first indication field indicates the carrier packet in the form of a bitmap.

The second indication field may be referred to as a multiplexing indication field for short. When the DCI is the DCI without data scheduling, the information domain corresponding to the second indication domain is used for indicating the sleep state of the auxiliary carrier; in case that the DCI is a DCI with data scheduling, the information field corresponding to the second indication field is not used to indicate the sleep state of the secondary carrier, but used to indicate other information, such as: and at least one of modulation coding mode information, new data indication information, redundancy version information, HARQ process number information, antenna port information and reference signal initial parameter information. Correspondingly, the second indication field comprises at least one of a modulation coding mode field, a new data indication field, a redundancy version field, an HARQ process number field, an antenna port field and a reference signal initial parameter field. When the DCI adopts DCI format 1-1, the reference signal initial parameter information may be DMRS sequence initialization information, and the corresponding information field is a 1-bit DMRS sequence initialization field.

Exemplarily, referring to (a) in fig. 6 in combination, the terminal receives the first DCI without data scheduling. The first DCI is configured with two indication fields, a first (newly added) indication field and a second (multiplexed) indication field. Wherein the second indication field is a partial information field in an existing information field of the first DCI.

Exemplarily, referring to (b) in fig. 6 in combination, the terminal receives the first DCI with data scheduling and the second DCI without data scheduling at the same time. The first DCI is configured with a first (newly added) indication field and the second DCI is configured with a second (multiplexed) indication field. Wherein the second indication field is a partial information field in an existing information field of the second DCI.

Case two: the first indication field is an information field dedicated to indicate a sleep state of the secondary carrier in the first DCI, and the second indication field is an information field dedicated to indicate a sleep state of the secondary carrier in the second DCI.

The first indication field and the second indication field are the same type of information field, which may be referred to as a dedicated indication field or a newly added indication field. The first indication field and the second indication field are both information fields dedicated to indicate a sleep state of the secondary carrier in respective DCIs, but the first indication field and the second indication field belong to different DCIs.

Optionally, the first indication field (or the second indication field) is configured by a higher layer RRC, such as: the n carrier groupings of the supplementary carriers are defined by the RRC parameter "Scell-groups-for-downlink-with-active-time" and which supplementary carriers are included in each carrier grouping. The n carrier groups are in one-to-one correspondence with n bits of the first indication field (or the second indication field), and n is a positive integer. Optionally, the first indication field (or the second indication field) indicates the carrier grouping in the form of a bitmap.

Illustratively, referring to fig. 7 in combination, the terminal receives a first DCI with data scheduling and a second DCI with data scheduling at the same time. The first DCI is configured with a first (new) indication field and the second DCI is configured with a second (new) indication field.

Case three: the first indication field is an information field for indicating a sleep state of a secondary carrier in the first DCI if the first DCI is a DCI without data scheduling, and the second indication field is an information field for indicating a sleep state of a secondary carrier in the second DCI if the second DCI is a DCI without data scheduling.

The first indication field and the second indication field are the same type of information field, which may be referred to as a multiplexing indication field for short. The first indication field and the second indication field are both information fields for indicating a sleep state of a secondary carrier in the DCI when the respective DCI is a DCI without data scheduling, but the first indication field and the second indication field belong to different DCIs.

Optionally, when the first DCI (or the second DCI) is a DCI without data scheduling, the information field corresponding to the first indication field (or the second indication field) is to indicate a sleep state of the secondary carrier; in the case that the first DCI (or the second DCI) is a DCI with data scheduling, the information field corresponding to the first indication field (or the second indication field) is not used for indicating the sleep state of the secondary carrier but used for indicating other information, such as: and at least one of modulation coding mode information, new data indication information, redundancy version information, HARQ process number information, antenna port information and reference signal initial parameter information. Correspondingly, the first indication field (or the second indication field) comprises at least one of a modulation coding mode field, a new data indication field, a redundancy version field, an HARQ process number field, an antenna port field and a reference signal initial parameter field. When the first DCI (or the second DCI) adopts DCI format 1-1, the reference signal initial parameter information may be DMRS sequence initialization information, and the corresponding information field is a 1-bit DMRS sequence initialization field.

Exemplarily, referring to fig. 8 in combination, the terminal receives the first DCI without data scheduling and the second DCI without data scheduling at the same time. The first DCI is configured with a first (multiplexed) indication field and the second DCI is configured with a second (multiplexed) indication field. Wherein the first indication field is a partial information field in an existing information field of the first DCI, and the second indication field is a partial information field in an existing information field of the second DCI.

For any one of the above 3 cases, how to determine the sleep state of the secondary carrier, there are at least three ways:

the first method is as follows: and the terminal preferentially determines the sleep state of the auxiliary carrier according to the indication of the first indication domain.

The second method comprises the following steps: and the terminal preferentially determines the sleep state of the auxiliary carrier according to the indication of the second indication domain.

The third method comprises the following steps: and the terminal determines the sleep state of the auxiliary carrier according to the indication of the first indication domain and the second indication domain.

With reference to fig. 9 in combination, fig. 9 is a flowchart illustrating a method for indicating sleep of a secondary carrier according to an exemplary embodiment of the present application, where the method may be applied to the terminal 13 shown in fig. 1. In this embodiment, step 520 is alternatively implemented as step 521, which corresponds to the first manner; step 520 is alternatively implemented as step 522, which corresponds to the second way described above; step 520 is alternatively implemented as step 523, which corresponds to the third manner described above.

Aiming at the first mode:

step 521: and in the case that a first indication domain exists in the at least one indication domain, determining the sleep state of the auxiliary carrier according to the first indication domain.

The presence of the first indication field in the at least one indication field may be the presence of: a first indication field and a second indication field; there may be at least one indication that only: a first indication field. And the terminal takes the first indication domain as a target indication domain and determines the sleep state of the auxiliary carrier according to the first indication domain.

Illustratively, for case one, the target indication field is a first indication field dedicated to indicating the sleep state of the secondary carrier in DCI, and the terminal determines the sleep state of the secondary carrier according to the first indication field.

Illustratively, for case two: the target indication domain is a first indication domain dedicated to indicate the sleep state of the secondary carrier in the first DCI, and the terminal determines the sleep state of the secondary carrier according to the first indication domain.

Illustratively, for case three: the target indication field is a first indication field for indicating the sleep state of the secondary carrier in the first DCI when the first DCI is the DCI without data scheduling, and the terminal determines the sleep state of the secondary carrier according to the first indication field.

In an optional embodiment, in the case that the first indication domain does not exist in the at least one indication domain, and the second indication domain exists, the sleep state of the secondary carrier is determined according to the second indication domain.

And if the first indication domain does not exist in the at least one indication domain, the terminal determines the sleep state of the auxiliary carrier according to the indication of the existing second indication domain.

Illustratively, for case one, the DCI (the first DCI or the second DCI) is not configured with the first indication field, the target indication field is a second indication field for indicating a sleep state of the secondary carrier in the DCI when the DCI is a DCI without data scheduling, and the terminal determines the sleep state of the secondary carrier according to the second indication field.

Illustratively, for case two: the first DCI is not configured with a first indication domain, the target indication domain is a second indication domain which is dedicated to indicate the sleep state of the auxiliary carrier in the second DCI, and the terminal determines the sleep state of the auxiliary carrier according to the second indication domain.

Illustratively, for case three: the first DCI is a DCI with data scheduling, the target indication domain is a first indication domain used for indicating the sleep state of the auxiliary carrier in the second DCI under the condition that the second DCI is a DCI without data scheduling, and the terminal determines the sleep state of the auxiliary carrier according to the second indication domain.

In view of the second embodiment:

step 522: and in the case that a second indication domain exists in the at least one indication domain, determining the sleep state of the secondary carrier according to the second indication domain.

The presence of the second indication field in the at least one indication field may be the presence of: a first indication field and a second indication field; there may be at least one indication that only: a second indication domain. And the terminal takes the second indication domain as a target indication domain and determines the sleep state of the auxiliary carrier according to the second indication domain.

Illustratively, for case one, the target indication field is a second indication field for indicating a sleep state of the secondary carrier in the DCI when the DCI is a DCI without data scheduling, and the terminal determines the sleep state of the secondary carrier according to the second indication field.

Illustratively, for case two: the target indication domain is a second indication domain dedicated to indicate the sleep state of the secondary carrier in the second DCI, and the terminal determines the sleep state of the secondary carrier according to the second indication domain.

Illustratively, for case three: the target indication field is a second indication field for indicating the sleep state of the secondary carrier in the second DCI when the second DCI is the DCI without data scheduling, and the terminal determines the sleep state of the secondary carrier according to the second indication field.

In an optional embodiment, in the case that the second indication domain does not exist in the at least one indication domain and the first indication domain exists, the sleep state of the secondary carrier is determined according to the first indication domain.

And if the second indication domain does not exist in the at least one indication domain, the terminal determines the sleep state of the auxiliary carrier according to the indication of the existing first indication domain.

Illustratively, for case one, the DCI (the first DCI or the second DCI) is not configured with the second indication field, the target indication field is a first indication field dedicated to indicate the sleep state of the secondary carrier in the DCI, and the terminal determines the sleep state of the secondary carrier according to the first indication field.

Illustratively, for case two: the second DCI is not configured with a second indication domain, the target indication domain is a first indication domain dedicated for indicating the sleep state of the auxiliary carrier in the first DCI, and the terminal determines the sleep state of the auxiliary carrier according to the first indication domain.

Illustratively, for case three: the second DCI is a DCI with data scheduling, the target indication domain is a first indication domain used for indicating the sleep state of the auxiliary carrier in the first DCI under the condition that the first DCI is a DCI without data scheduling, and the terminal determines the sleep state of the auxiliary carrier according to the first indication domain.

Aiming at the third mode:

step 523: under the condition that a first indication domain and a second indication domain exist in at least one indication domain, determining the sleep state of the auxiliary carrier according to the first indication domain and the second indication domain;

and the sleep state of the auxiliary carrier indicated by the second indication domain is the same as the sleep state of the auxiliary carrier indicated by the first indication domain.

The first indication domain and the second indication domain exist in at least one indication domain at the same time, and the sleep state of the secondary carrier indicated by the second indication domain is the same as the sleep state of the secondary carrier indicated by the first indication domain. And the terminal takes any one of the first indication domain and the second indication domain as a target indication domain, and determines the sleep state of the auxiliary carrier wave through the target indication domain.

In an optional embodiment, in a case that a first indication field and a second indication field exist in at least one indication field, the terminal does not expect that the sleep state of the secondary carrier indicated by the first indication field is different from the sleep state of the secondary carrier indicated by the second indication field.

Because the existing first indication domain and the second indication domain can be used for indicating the sleep state of the secondary carrier, the terminal needs to determine the sleep state of the secondary carrier according to the first indication domain and the second indication domain at the same time, and in order to avoid confusion caused by the fact that the sleep state of the secondary carrier indicated by the first indication domain is different from the sleep state of the secondary carrier indicated by the second indication domain, the terminal does not expect to receive that the sleep state of the secondary carrier indicated by the first indication domain is different from the sleep state of the secondary carrier indicated by the second indication domain.

In the method provided by this embodiment, when at least one of the indication fields includes at least one of the first indication field and the second indication field, 3 different ways of determining the sleep state of the secondary carrier are provided, so that the flexibility of the sleep indication method of the secondary carrier is improved.

For the second indication field in the first case, and the first indication field and the second indication field in the third case, the terminal needs to determine whether the DCI to which the indication field belongs is DCI without data scheduling.

Referring to fig. 10 in combination, fig. 10 is a flowchart illustrating a method for determining whether DCI is data-free scheduled DCI according to an exemplary embodiment of the present application, where the method may be applied to the terminal 13 shown in fig. 1. This embodiment may be implemented alone, or may be implemented in combination with the embodiments shown in fig. 5 or 9. The method comprises the following steps:

step 1010, determining whether the DCI is a DCI without data scheduling according to the frequency domain resource indication field in the DCI.

Wherein the DCI is a first DCI or a second DCI.

A Frequency Domain Resource Allocation (FDRA) field is one of information fields in DCI. In an Uplink scheduling grant DCI (DCI format 0-1 as shown in table one), the information field is used to indicate a resource block allocated for a terminal to transmit a Physical Uplink Shared Channel (PDSCH) on one component carrier. In the downlink scheduling grant DCI (DCI format 1-1 as shown in table two), the information field is used to indicate on which resource blocks of the component carriers the PDSCH that the terminal needs to receive is allocated. The component carrier is one of carriers aggregated in a carrier aggregation scene.

And the terminal determines whether the DCI is the DCI without data scheduling or not through the FDRA domain in the DCI.

In one possible implementation, in a case where the resource allocation type of the BWP corresponding to the secondary carrier is the first type and the bits in the frequency domain resource indication field are all 0, the terminal determines that the DCI is a DCI without data scheduling.

In another possible implementation, in a case where the resource allocation type of the BWP corresponding to the secondary carrier is the second type and the bits in the frequency domain resource indication field are all 1, the terminal determines that the DCI is a DCI without data scheduling.

The first type and the second type are two different resource allocation types, the first type is a mode for allocation based on a bitmap, and the second type is independent of the bitmap.

In summary, the method provided in this embodiment provides a method for determining whether DCI is DCI without data scheduling, and then the terminal may determine whether the second indication field in the first case, the first indication field in the third case, and the second indication field exist according to the method, and select the target indication field based on the determination result, thereby ensuring the accuracy of the sleep indication method for the secondary carrier.

In an alternative embodiment based on fig. 5, fig. 11 is a flowchart illustrating a method for indicating sleep of a secondary carrier according to an exemplary embodiment of the present application. In this embodiment, the method further includes the following steps:

in step 530, a sleep state of the corresponding BWP is activated according to the sleep state of the secondary carrier.

The mechanism by which the NR adjusts the sleep state of the secondary carriers is: by switching to the sleep BWP or the non-sleep BWP, a certain secondary carrier is caused to enter a sleep state or a non-sleep state, respectively. After determining the sleep state of the auxiliary carrier, if a certain auxiliary carrier is switched from the non-sleep state to the sleep state, the terminal activates the sleep state of the BWP corresponding to the auxiliary carrier; if a certain auxiliary carrier is switched from a sleep state to a non-sleep state, the terminal adjusts the BWP corresponding to the auxiliary carrier to be in the non-sleep state.

Illustratively, referring to fig. 12 in combination, during an Active Time (Active Time) of DRX, the terminal dynamically adjusts the sleep state on one secondary carrier through one DCI on the primary carrier. The DCI is configured with at least one indication field, and the DCI may schedule data of a primary carrier or not schedule the data of the primary carrier.

If the auxiliary carrier is determined to be converted into the sleep state through the target indication domain in the at least one indication domain, activating a sleep BWP, and monitoring a PDCCH by the terminal in a time period corresponding to the sleep BWP; and if the auxiliary carrier is determined to be converted into the non-sleep state through the target indication domain in the at least one indication domain, switching to the non-sleep BWP, and not monitoring the PDCCH by the terminal in a time period corresponding to the non-sleep BWP.

In summary, in the method provided in this embodiment, the terminal activates the sleep state of the BWP corresponding to the secondary carrier, so as to adjust the sleep state of the secondary carrier.

Fig. 13 is a block diagram illustrating a structure of a sleep indication apparatus for a secondary carrier according to an exemplary embodiment of the present application, where the apparatus may be implemented as a terminal or as a part of a terminal, and the apparatus includes: a receiving module 1301 and a determining module 1302;

a receiving module 1301 configured to receive DCI carried on a PDCCH, where the DCI is configured with at least one indication field, and the indication field is used to indicate a sleep state of a secondary carrier;

a determining module 1302 configured to determine a sleep state of the secondary carrier according to a target indication domain of the at least one indication domain.

In an alternative embodiment, the at least one indication field comprises at least one of a first indication field and a second indication field; the first indication domain is an information domain dedicated to indicating the sleep state of the secondary carrier in the DCI, the second indication domain is an information domain dedicated to indicating the sleep state of the secondary carrier in the DCI when the DCI is a DCI without data scheduling, and the first indication domain and the second indication domain belong to the same DCI or two different DCIs.

In an alternative embodiment, the at least one indication field comprises at least one of a first indication field and a second indication field; wherein the first indication field is an information field dedicated to indicate a sleep state of the secondary carrier in the first DCI, and the second indication field is an information field dedicated to indicate a sleep state of the secondary carrier in the second DCI.

In an alternative embodiment, the at least one indication field comprises at least one of a first indication field and a second indication field; wherein the first indication field is an information field for indicating a sleep state of a secondary carrier in the first DCI when the first DCI is a DCI without data scheduling, and the second indication field is an information field for indicating a sleep state of a secondary carrier in the second DCI when the second DCI is a DCI without data scheduling.

In an optional embodiment, the determining module 1302 is configured to determine, in a case that a first indication domain exists in the at least one indication domain, a sleep state of the secondary carrier according to the first indication domain.

In an optional embodiment, the determining module 1302 is configured to determine the sleep state of the secondary carrier according to the second indication domain in a case that the first indication domain does not exist in the at least one indication domain and the second indication domain exists.

In an optional embodiment, the determining module 1302 is configured to determine the sleep state of the secondary carrier according to a second indication domain if the second indication domain exists in the at least one indication domain.

In an optional embodiment, the determining module 1302 is configured to determine the sleep state of the secondary carrier according to the first indication domain if the second indication domain does not exist in the at least one indication domain and the first indication domain exists.

In an optional embodiment, the determining module 1302 is configured to determine, in a case that a first indication domain and a second indication domain exist in at least one indication domain, a sleep state of the secondary carrier according to the first indication domain and the second indication domain; and the sleep state of the auxiliary carrier indicated by the second indication domain is the same as the sleep state of the auxiliary carrier indicated by the first indication domain.

In an optional embodiment, the receiving module 1301 is configured to, in a case that a first indication field and a second indication field exist in at least one indication field, not expect that a sleep state of a secondary carrier indicated by the first indication field is different from a sleep state of a secondary carrier indicated by the second indication field.

In an optional embodiment, the determining module 1302 is configured to determine whether the DCI is a DCI without data scheduling according to a frequency domain resource indication field in the DCI, where the DCI is a first DCI or a second DCI.

In an alternative embodiment, the determining module 1302 is configured to determine that the DCI is a DCI without data scheduling if the resource allocation type of the fractional bandwidth BWP corresponding to the secondary carrier is a first type and bits in the frequency domain resource indication field are all 0; or, the determining module 1302 is configured to determine that the DCI is a DCI without data scheduling if the resource allocation type of the BWP corresponding to the secondary carrier is the second type and the bits in the frequency domain resource indication field are all 1.

In an alternative embodiment, the first indication field is configured by a higher layer radio resource control, RRC.

In an alternative embodiment, n carrier groups of the secondary carriers are configured by RRC, the n carrier groups are in one-to-one correspondence with n bits of the first indication field, and n is a positive integer.

In an optional embodiment, in a case that the DCI is a DCI with data scheduling, the information indicated by the second indication field includes: and at least one of modulation coding mode information, new data indication information, redundancy version information, HARQ process number information, antenna port information and reference signal initial parameter information.

In an optional embodiment, the second indication field includes at least one of a modulation coding scheme field, a new data indication field, a redundancy version field, an HARQ process number field, an antenna port field, and a reference signal initial parameter field.

In an alternative embodiment, the first indication field is configured by a higher layer RRC; the second indication field is configured by RRC.

In an alternative embodiment, n carrier groups of the secondary carriers are configured by the RRC, the n carrier groups are in one-to-one correspondence with n bits of the first indication field, and n is a positive integer; m carrier groups of the auxiliary carrier are configured by the RRC, the m carrier groups correspond to m bits of the second indication field in a one-to-one mode, and m is a positive integer.

In an optional embodiment, in a case that the first DCI is a DCI with data scheduling, the information indicated by the first indication field includes: modulating at least one of coding mode information, new data indication information, redundancy version information, HARQ process number information, antenna port information and reference signal initial parameter information; when the second DCI is a DCI with data scheduling, the information indicated by the second indication field includes: and at least one of modulation coding mode information, new data indication information, redundancy version information, HARQ process number information, antenna port information and reference signal initial parameter information.

In an optional embodiment, the first indication field comprises at least one of a modulation coding mode field, a new data indication field, a redundancy version field, an HARQ process number field, an antenna port field and a reference signal initial parameter field;

the second indication field comprises at least one of a modulation coding mode field, a new data indication field, a redundancy version field, an HARQ process number field, an antenna port field and a reference signal initial parameter field.

In an optional embodiment, the apparatus further comprises: an activation module 1303; an activating module 1303 configured to activate a sleep state of the corresponding BWP according to the sleep state of the secondary carrier.

Fig. 14 shows a schematic structural diagram of a terminal provided in an exemplary embodiment of the present application, where the terminal includes: a processor 101, a receiver 102, a transmitter 103, a memory 104, and a bus 105.

The processor 101 includes one or more processing cores, and the processor 101 executes various functional applications and information processing by running software programs and modules.

The receiver 102 and the transmitter 103 may be implemented as one communication component, which may be a communication chip.

The memory 104 is connected to the processor 101 through a bus 105.

The memory 104 may be used to store at least one instruction that the processor 101 is configured to execute to implement the various steps in the above-described method embodiments.

Further, the memory 104 may be implemented by any type or combination of volatile or non-volatile storage devices, including, but not limited to: magnetic or optical disks, Electrically Erasable Programmable Read Only Memories (EEPROMs), Erasable Programmable Read Only Memories (EPROMs), Static Random Access Memories (SRAMs), Read-Only memories (ROMs), magnetic memories, flash memories, Programmable Read Only Memories (PROMs).

In an exemplary embodiment, a computer readable storage medium is further provided, and at least one instruction, at least one program, a code set, or a set of instructions is stored in the computer readable storage medium, and the at least one instruction, the at least one program, the code set, or the set of instructions is loaded and executed by the processor to implement the sleep indication method for a secondary carrier executed by a terminal provided by the above-mentioned various method embodiments.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

A method for indicating sleep of a secondary carrier, the method comprising:

receiving Downlink Control Information (DCI) carried on a Physical Downlink Control Channel (PDCCH), wherein the DCI is configured with at least one indication domain, and the indication domain is used for indicating the sleep state of an auxiliary carrier;

and determining the sleep state of the auxiliary carrier according to a target indication domain in the at least one indication domain.
The method of claim 1,

the at least one indication field comprises at least one of a first indication field and a second indication field;

the first indication domain is an information domain dedicated to indicate a sleep state of a secondary carrier in the DCI, the second indication domain is an information domain dedicated to indicate a sleep state of a secondary carrier in the DCI when the DCI is a DCI without data scheduling, and the first indication domain and the second indication domain belong to the same DCI or two different DCIs.
The method of claim 1,

the at least one indication field comprises at least one of a first indication field and a second indication field;

wherein the first indication field is an information field dedicated to indicate a sleep state of a secondary carrier in the first DCI, and the second indication field is an information field dedicated to indicate a sleep state of a secondary carrier in the second DCI.
The method of claim 1,

the at least one indication field comprises at least one of a first indication field and a second indication field;

wherein the first indication field is an information field for indicating a sleep state of the secondary carrier in a first DCI if the first DCI is a DCI without data scheduling, and the second indication field is an information field for indicating a sleep state of the secondary carrier in a second DCI if the second DCI is a DCI without data scheduling.
The method according to any one of claims 2 to 4, wherein the determining the sleep state of the secondary carrier according to the target indication field of the at least one indication field comprises:

and under the condition that the first indication domain exists in the at least one indication domain, determining the sleep state of the auxiliary carrier according to the first indication domain.
The method of claim 5, further comprising:

and under the condition that the first indication domain does not exist in the at least one indication domain and the second indication domain exists, determining the sleep state of the auxiliary carrier according to the second indication domain.
The method according to any one of claims 2 to 4, wherein the determining the sleep state of the secondary carrier according to the target indication field of the at least one indication field comprises:

and under the condition that the second indication domain exists in the at least one indication domain, determining the sleep state of the auxiliary carrier according to the second indication domain.
The method of claim 7, further comprising:

and if the second indication domain does not exist in the at least one indication domain and the first indication domain exists, determining the sleep state of the auxiliary carrier according to the first indication domain.
The method according to any one of claims 2 to 4, wherein the determining the sleep state of the secondary carrier according to the target indication field of the at least one indication field comprises:

determining a sleep state of the secondary carrier according to the first indication domain and the second indication domain when the first indication domain and the second indication domain exist in the at least one indication domain;

wherein the sleep state of the secondary carrier indicated by the second indication field is the same as the sleep state of the secondary carrier indicated by the first indication field.
The method of claim 9, further comprising:

when the first indication domain and the second indication domain exist in the at least one indication domain, the sleep state of the secondary carrier indicated by the first indication domain is not expected to be different from the sleep state of the secondary carrier indicated by the second indication domain.
The method according to any one of claims 2 to 10, further comprising:

determining whether the DCI is a DCI without data scheduling according to a frequency domain resource indication field in the DCI, wherein the DCI is the first DCI or the second DCI.
The method of claim 10, wherein the determining whether the DCI is a DCI without data scheduling according to a frequency-domain resource indication field in the DCI comprises:

determining that the DCI is a DCI without data scheduling in a case that a resource allocation type of a fractional bandwidth BWP corresponding to the secondary carrier is a first type and bits in the frequency domain resource indication field are all 0;

or the like, or, alternatively,

determining that the DCI is a DCI without data scheduling, when a resource allocation type of BWP corresponding to the secondary carrier is a second type and bits in the frequency-domain resource indication field are all 1.
The method of claim 2,

the first indication field is configured by a higher layer radio resource control, RRC.
The method of claim 13,

n carrier groups of the secondary carriers are configured by the RRC, the n carrier groups correspond to n bits of the first indication field one to one, and n is a positive integer.
The method of claim 2, wherein in the case that the DCI is a DCI with data scheduling, the information indicated by the second indication field comprises:

and at least one of modulation coding mode information, new data indication information, redundancy version information, HARQ process number information, antenna port information and reference signal initial parameter information.
The method of claim 15,

the second indication domain comprises at least one of a modulation coding mode domain, a new data indication domain, a redundancy version domain, an HARQ process number domain, an antenna port domain and a reference signal initial parameter domain.
The method of claim 3,

the first indication domain is configured by a higher layer RRC;

the second indication field is configured by the RRC.
The method of claim 17,

n carrier groups of the secondary carriers are configured by the RRC, the n carrier groups correspond to n bits of the first indication field one by one, and n is a positive integer;

m carrier groups of the auxiliary carrier are configured by the RRC, the m carrier groups correspond to m bits of the second indication field one by one, and m is a positive integer.
The method of claim 4,

in the case that the first DCI is a DCI with data scheduling, the information indicated by the first indication field includes: modulating at least one of coding mode information, new data indication information, redundancy version information, HARQ process number information, antenna port information and reference signal initial parameter information;

in a case that the second DCI is a DCI with data scheduling, the information indicated by the second indication field includes: and at least one of modulation coding mode information, new data indication information, redundancy version information, HARQ process number information, antenna port information and reference signal initial parameter information.
The method of claim 19,

the first indication domain comprises at least one of a modulation coding mode domain, a new data indication domain, a redundancy version domain, an HARQ process number domain, an antenna port domain and a reference signal initial parameter domain;

the second indication domain comprises at least one of a modulation coding mode domain, a new data indication domain, a redundancy version domain, an HARQ process number domain, an antenna port domain and a reference signal initial parameter domain.
The method according to any one of claims 2 to 10, further comprising:

and activating the sleep state of the corresponding BWP according to the sleep state of the auxiliary carrier.
An apparatus for indicating sleep of a secondary carrier, the apparatus comprising: a receiving module and a determining module;

the receiving module is configured to receive downlink control information DCI carried on a physical downlink control channel PDCCH, where the DCI is configured with at least one indication field, and the indication field is used for indicating a sleep state of a secondary carrier;

the determining module is configured to determine a sleep state of the secondary carrier according to a target indication domain of the at least one indication domain.
The apparatus of claim 22,

the at least one indication field comprises at least one of a first indication field and a second indication field;

the first indication domain is an information domain dedicated to indicate a sleep state of a secondary carrier in the DCI, the second indication domain is an information domain dedicated to indicate a sleep state of a secondary carrier in the DCI when the DCI is a DCI without data scheduling, and the first indication domain and the second indication domain belong to the same DCI or two different DCIs.
The apparatus of claim 22,

the at least one indication field comprises at least one of a first indication field and a second indication field;

wherein the first indication field is an information field dedicated to indicate a sleep state of a secondary carrier in the first DCI, and the second indication field is an information field dedicated to indicate a sleep state of a secondary carrier in the second DCI.
The apparatus of claim 22,

the at least one indication field comprises at least one of a first indication field and a second indication field;

wherein the first indication field is an information field for indicating a sleep state of the secondary carrier in a first DCI in case that the first DCI is a DCI without data scheduling, and the second indication field is an information field for indicating a sleep state of the secondary carrier in a second DCI in case that the second DCI is a DCI without data scheduling.
The apparatus of any one of claims 23 to 25,

the determination module is configured to determine a sleep state of the secondary carrier according to the first indication domain if the first indication domain exists in the at least one indication domain.
The apparatus of claim 26,

the determining module is configured to determine the sleep state of the secondary carrier according to the second indication domain if the first indication domain does not exist in the at least one indication domain and the second indication domain exists.
The apparatus of any one of claims 23 to 25,

the determining module is configured to determine a sleep state of the secondary carrier according to the second indication domain if the second indication domain exists in the at least one indication domain.
The apparatus of claim 28,

the determining module is configured to determine the sleep state of the secondary carrier according to the first indication domain if the second indication domain does not exist in the at least one indication domain and the first indication domain exists.
The apparatus of any one of claims 23 to 25,

the determining module is configured to determine a sleep state of the secondary carrier according to the first indication domain and the second indication domain if the first indication domain and the second indication domain exist in the at least one indication domain;

wherein the sleep state of the secondary carrier indicated by the second indication field is the same as the sleep state of the secondary carrier indicated by the first indication field.
The apparatus of claim 30,

the receiving module is configured to not expect that the sleep state of the secondary carrier indicated by the first indication domain is different from the sleep state of the secondary carrier indicated by the second indication domain when the first indication domain and the second indication domain exist in the at least one indication domain.
The apparatus of any one of claims 23 to 31,

the determining module is configured to determine whether the DCI is a DCI without data scheduling according to a frequency domain resource indication field in the DCI, wherein the DCI is the first DCI or the second DCI.
The apparatus of claim 32,

the determining module is configured to determine that the DCI is a DCI without data scheduling if a resource allocation type of a fractional bandwidth BWP corresponding to the secondary carrier is a first type and bits in the frequency domain resource indication field are all 0;

or the like, or, alternatively,

the determining module is configured to determine that the DCI is a DCI without data scheduling if the resource allocation type of the BWP corresponding to the secondary carrier is a second type and bits in the frequency domain resource indication field are all 1.
The apparatus of claim 23,

the first indication field is configured by a higher layer radio resource control, RRC.
The apparatus of claim 34,

n carrier groups of the secondary carriers are configured by the RRC, the n carrier groups correspond to n bits of the first indication field one to one, and n is a positive integer.
The apparatus of claim 23, wherein in the case that the DCI is a DCI with data scheduling, the information indicated by the second indication field comprises:

and at least one of modulation coding mode information, new data indication information, redundancy version information, HARQ process number information, antenna port information and reference signal initial parameter information.
The apparatus of claim 36,

the second indication domain comprises at least one of a modulation coding mode domain, a new data indication domain, a redundancy version domain, an HARQ process number domain, an antenna port domain and a reference signal initial parameter domain.
The apparatus of claim 24,

the first indication domain is configured by a higher layer RRC;

the second indication field is configured by the RRC.
The apparatus of claim 28,

n carrier groups of the secondary carriers are configured by the RRC, the n carrier groups correspond to n bits of the first indication field one by one, and n is a positive integer;

m carrier groups of the auxiliary carrier are configured by the RRC, the m carrier groups correspond to m bits of the second indication field one by one, and m is a positive integer.
The apparatus of claim 25,

in the case that the first DCI is a DCI with data scheduling, the information indicated by the first indication field includes: modulating at least one of coding mode information, new data indication information, redundancy version information, HARQ process number information, antenna port information and reference signal initial parameter information;

in a case that the second DCI is a DCI with data scheduling, the information indicated by the second indication field includes: and at least one of modulation coding mode information, new data indication information, redundancy version information, HARQ process number information, antenna port information and reference signal initial parameter information.
The apparatus of claim 40,

the first indication domain comprises at least one of a modulation coding mode domain, a new data indication domain, a redundancy version domain, an HARQ process number domain, an antenna port domain and a reference signal initial parameter domain;

the second indication domain comprises at least one of a modulation coding mode domain, a new data indication domain, a redundancy version domain, an HARQ process number domain, an antenna port domain and a reference signal initial parameter domain.
The apparatus of any one of claims 23 to 31, further comprising: an activation module;

the activation module is configured to activate a sleep state of a corresponding BWP according to a sleep state of the secondary carrier.
A terminal, characterized in that the terminal comprises:

a processor;

a transceiver coupled to the processor;

a memory for storing executable instructions of the processor;

wherein the processor is configured to load and execute the executable instructions to implement a method of sleep indication for a secondary carrier as claimed in any of claims 1 to 21.
A computer readable storage medium having stored thereon executable instructions to be loaded and executed by a processor to implement a method of sleep indication for a supplementary carrier as claimed in any one of claims 1 to 21.