CN114902748B

CN114902748B - Sleep indication method, device, terminal and storage medium for auxiliary carrier

Info

Publication number: CN114902748B
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: 2024-04-30
Anticipated expiration: 2040-03-27
Also published as: WO2021189446A1; CN114902748A

Abstract

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

Description

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

Technical Field

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

Background

In a New air interface (NR) of 5G, a sleep (Dormancy) mode of energy 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 an auxiliary carrier, wherein the sleep state of the auxiliary carrier can be determined through a target indication domain in at least one indication domain. The technical scheme is as follows.

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

Receiving DCI carried on 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 the 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 comprising: 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 to indicate a sleep state of an auxiliary carrier;

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

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 secondary carrier sleep indication method as described in the above aspects.

According to one 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 a method of sleep indication for a secondary carrier as described in the above aspects.

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

When receiving DCI configured with at least one indication domain, a terminal can determine the sleep state of an auxiliary carrier through a target indication domain in the at least one indication domain, so that the problem of how to process the DCI when the terminal possibly receives multiple sleep indication modes at the same time is solved, the behavior of the terminal is clarified, and the accuracy of sleep indication of the auxiliary carrier is further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

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

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

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

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

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

FIG. 7 is a schematic diagram of a first indication field and a second indication field 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 sleep indication method of a secondary carrier according to an exemplary embodiment of the present application;

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

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

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

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

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

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

First, the terms involved in the embodiments of the present application will be briefly described:

Discontinuous reception (Discontinuous Reception, DRX): the DRX may allow the terminal to periodically enter a sleep period at some time without listening to the physical downlink control channel (Physical Downlink Control Channel, PDCCH) scheduling information (or PDCCH subframe). When the terminal needs to monitor the PDCCH scheduling information, the terminal wakes up (wake up) from the sleep period, so that the terminal can achieve the purpose of saving electricity.

The basic mechanism of DRX is to configure a DRX cycle (DRX cycle) for a terminal in a radio resource control CONNECTED state (Radio Resource Control _connected). The DRX cycle consists of an "active period (ACTIVE TIME)" and a "sleep period (INACTIVE TIME)": in the time of the activation period, the terminal monitors and receives PDCCH scheduling information; and in the sleep period time, the terminal does not receive the data of the downlink channel so as 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 an 'active period', the terminal starts a DRX inactivity timer (DRX-INACTIVITY TIMER) and listens for PDCCH scheduling information every subframe during the period; if DRX-INACTIVITY TIMER is running, the terminal still needs to continue listening to the downlink PDCCH subframes until the timeout of DRX-INACTIVITY TIMER even though the originally configured On Duration has ended.

Carrier aggregation: carrier aggregation (Carrier Aggregation, CA) is to aggregate 2 or more component carriers (Component Carrier, CC) together to support a larger transmission bandwidth. As shown in fig. 2, the CA technology can aggregate 2 to 5 carriers together, so as to achieve a maximum transmission bandwidth of 100MHz, and effectively improve the uplink and downlink transmission rate.

The primary cell (PRIMARY CELL, PCELL) is a cell in which the terminal performs initial connection establishment, or a cell in which RRC connection reestablishment is performed, or a primary cell designated during a cell handover. The PCell is responsible for radio resource control (Radio Resource Control, RRC) communication with the terminals. The carrier element corresponding to the PCell is called a primary carrier (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 carrier (Secondary Component Carrier, SCC).

Only one primary carrier is present at a time, allowing multiple secondary carriers, such as 3 secondary carriers, to be present. The network can set the auxiliary carrier which is not used temporarily to be in 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 transmit data on the activated carrier (primary or secondary) and only support limited measurements on the deactivated carrier (secondary).

Sleep mode: in the sleep mode, the terminal may ignore the PDCCH of one carrier or greatly reduce the PDCCH monitoring on one carrier. Meanwhile, the terminal only needs to keep some basic signal receiving of channel measurement class, such as uplink and downlink synchronization and frequency calibration.

The mechanism by which the NR adjusts the sleep state of the secondary carrier is: by switching to a sleep Bandwidth Part (BWP) or a non-sleep BWP, a certain secondary carrier is put into a sleep state or a non-sleep state, respectively. Specifically, the terminal receives the PDCCH sent by the network device through the primary carrier in a certain time slot, and determines the state of the secondary carrier according to the indication of the indication field in the downlink control information (Downlink Control Information, DCI) carried by the PDCCH, so as to switch to the sleep BWP or the non-sleep BWP. As shown in fig. 3, the power consumption of the sleep carrier/BWP may be greatly reduced. As shown in (a) of fig. 3, the non-sleep carrier/BWP has power consumption for PDCCH monitoring, physical downlink shared channel (Physical Downlink SHARED CHANNEL, PDSCH) buffering, measurement, and the like in most slots. As the sleep carrier/BWP shown in (b) of fig. 3, there is only power consumption for measurement in some slots, thereby achieving a reduction in power consumption of the terminal.

In the related art, there are two possible sleep indication methods of the secondary carrier. When the DCI is non-scheduled (i.e. no scheduled data), the terminal uses n bits in the DCI as an indication field to indicate the sleep state of the secondary carrier, where n is a positive integer, for example: n is 15. When the DCI is a DCI for scheduling (i.e., scheduling data), then 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, a terminal can only use one sleep indication method of a secondary carrier. When DCI received by a terminal is configured with an indication field corresponding to a sleep indication method of a plurality of secondary carriers, the related art has not provided a better solution how to determine a sleep state of a secondary carrier.

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 third generation partnership project (3rd Generation Partnership Project,3GPP) Standard 38212-g 00) for details, as shown in Table one and Table two:

table one: DCI Format 0-1

And (II) table: DCI Format 1-1

Wherein, DCI format 0-1 is a non-fallback format of uplink scheduling allocation, and DCI format 1-1 is a non-fallback format of downlink scheduling allocation.

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

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

Access network 12 includes a number of network devices 120 therein. The network device 120 may be a base station, which is a means 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 employing different radio access technologies, the names of base station capable devices may vary, for example in LTE systems, called enodebs or enbs; in the 5G NR system, it is called gNodeB or gNB. As communication technology evolves, the description of "base station" may change. For convenience of description in the embodiments of the present disclosure, the above-described means for providing the terminal 13 with a wireless communication function are collectively referred to as a network device.

The terminal 13 may include various handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment, mobile Stations (MSs), terminals (TERMINAL DEVICE), and the like, having wireless communication capabilities. 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 via some kind of air interface technology, e.g. Uu interface.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (Global System of Mobile Communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general Packet Radio Service (GPRS), long term evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (Frequency Division Duplex, FDD) system, LTE time division duplex (Time Division Duplex, TDD) system, long term evolution advanced (Advanced long Term Evolution, LTE-a) system, new Radio (NR) system, NR system evolution system, LTE on unlicensed band (LTE-based access to Unlicensed spectrum, LTE-U) system, NR-U system, universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), global interconnect microwave access (Worldwide Interoperability for Microwave Access, wiMAX) communication system, wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (WIRELESS FIDELITY, WIFI), next generation communication system or other communication system, and the like.

Generally, the number of connections supported by the conventional Communication system is limited and 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 (Machine to Machine, M2M) Communication, machine type Communication (MACHINE TYPE Communication, MTC), inter-vehicle (Vehicle to Vehicle, V2V) Communication, and internet of vehicles (Vehicle to Everything, V2X) systems. The embodiments of the present application may also be applied to these communication systems.

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

Step 510, receiving DCI carried on PDCCH, the DCI configured with at least one indication field;

Wherein the indication field is used to indicate a sleep state of the secondary carrier.

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

The DCI includes a number of information fields for indicating different information, and an indication field for indicating a sleep state of the secondary carrier is included in the number of information fields. The DCI can be configured with one indication domain, and the DCI can also be configured with a plurality of indication domains, wherein one indication domain corresponds to one sleep indication mode of the auxiliary carrier. The indication field is used to indicate the sleep state of the secondary carriers, and the number of secondary carriers indicated by one indication field may be one or more. The auxiliary carrier is a carrier unit corresponding to an auxiliary cell, and the auxiliary cell is a cell for providing additional wireless resources for data transmission between the terminal and the network equipment.

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 secondary 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.

Step 520, determining a sleep state of the secondary carrier according to the target indication field in the at least one indication field.

In at least one indication field, there is a target indication field, and the terminal determines the sleep state of the secondary carrier according to the indication of the target indication field.

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

The terminal determines the sleep state of the auxiliary carrier through the numerical value of each bit on the target indication domain. 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 packet, one carrier packet comprising one or more secondary carriers.

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

In summary, in the method provided in this embodiment, when the terminal receives 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 may be determined by the target indication domain in the at least one indication domain, which solves the problem that how the terminal may receive multiple sleep indication modes at the same time, and determines the behavior of the terminal, thereby improving the accuracy of sleep indication of the auxiliary 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 cases:

Case one: the first indication field is an information field dedicated to indicating a sleep state of the secondary carrier in the DCI, and the second indication field is an information field for indicating a sleep state of the secondary carrier in the DCI in the case that the DCI is a DCI without data scheduling, and the first indication field and the second indication field 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 field and the second indication field belong to the same DCI, the first indication field belongs to the first DCI and the second indication field belongs to the first DCI, or the first indication field belongs to the second DCI and the second indication field belongs to the second DCI. When the first indication field and the second indication field belong to two different DCIs, the first indication field belongs to the first DCI and the second indication field belongs to the second DCI, or the first indication field belongs to the second DCI and the second indication field belongs to the first DCI.

The first indication field may be simply 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. Whether or not the DCI is a DCI for data scheduling, the first indication field is an information field dedicated to indicating a sleep state of the secondary carrier.

Optionally, the first indication field is configured by a higher layer RRC, such as: the n carrier packets of the secondary carriers and which secondary carriers are included in each carrier packet are defined by the RRC parameter "Scell-groups-for-dormancy-within-active-time". Wherein, n carrier wave groups are in one-to-one correspondence with n bits of the first indication domain, 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 simply referred to as a multiplexing indication field. If the DCI is 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 the 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 is used to indicate other information, such as: at least one of modulation and coding scheme 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 DCI format 1-1 is adopted in DCI, 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.

Illustratively, referring to (a) in fig. 6 in combination, the terminal receives a first DCI for a data-free schedule. 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 of an existing information field of the first DCI.

Illustratively, referring to (b) of fig. 6 in combination, the terminal simultaneously receives a first DCI with data scheduling and a second DCI without data scheduling. 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 of an existing information field of the second DCI.

And a second case: the first indication field is an information field dedicated to indicating a sleep state of the secondary carrier in the first DCI, and the second indication field is an information field dedicated to indicating 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 simply referred to as a dedicated indication field or a newly added indication field. The first indication field and the second indication field are information fields dedicated to indicating 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 domain (or the second indication domain) is configured by a higher layer RRC, such as: the n carrier packets of the secondary carriers and which secondary carriers are included in each carrier packet are defined by the RRC parameter "Scell-groups-for-dormancy-within-active-time". Wherein, n carrier wave groups are in one-to-one correspondence with n bits of the first indication domain (or the second indication domain), and n is a positive integer. Optionally, the first indication field (or the second indication field) indicates the carrier packet in the form of a bitmap.

For example, referring to fig. 7 in combination, a terminal receives a first DCI with data scheduling and a second DCI with data scheduling simultaneously. The first DCI is configured with a first (newly added) indication field and the second DCI is configured with a second (newly added) indication field.

And a third case: the first indication field is an information field for indicating a sleep state of the 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 the secondary carrier in the second DCI when 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 simply referred to as a multiplexing indication field. The first indication field and the second indication field are information fields for indicating a sleep state of the secondary carrier in the DCI in the case where the respective DCI is a DCI without data scheduling, but the first indication field and the second indication field belong to different DCIs.

Optionally, in the case that the first DCI (or the second DCI) is DCI without data scheduling, an information field corresponding to the first indication field (or the second indication field) is to be used 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 to indicate the sleep state of the secondary carrier, but is used to indicate other information, such as: at least one of modulation and coding scheme 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) includes: 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.

For example, referring to fig. 8 in combination, a terminal receives a first DCI without data scheduling and a second DCI without data scheduling simultaneously. The first DCI is configured with a first (multiplexing) indication field and the second DCI is configured with a second (multiplexing) 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 of the above 3 cases, how to determine the sleep state of the secondary carrier is at least three ways:

Mode one: the terminal preferentially determines the sleep state of the auxiliary carrier according to the indication of the first indication domain.

Mode two: the terminal preferentially determines the sleep state of the auxiliary carrier according to the indication of the second indication domain.

Mode three: 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.

Referring to fig. 9 in combination, fig. 9 shows a flowchart of a sleep indication method of a secondary carrier according to an exemplary embodiment of the present application, which may be applied to the terminal 13 shown in fig. 1. In this embodiment, step 520 is replaced by step 521, corresponding to the first mode described above; step 520 is alternatively implemented as step 522, corresponding to the second mode described above; step 520 is alternatively implemented as step 523, corresponding to the third mode described above.

For the first mode:

Step 521: in the case that a first indication field exists in at least one indication field, a sleep state of the secondary carrier is determined according to the first indication field.

The first indication field exists in the at least one indication field, and may be that the at least one indication field exists: a first indication field and a second indication field; it may be that only the at least one indication field is present: 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.

For example, for case one, the target indication field is a first indication field dedicated to indicating a 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.

Exemplary, for case two: the target indication field is a first indication field dedicated to indicating 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 field.

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

In an alternative embodiment, the sleep state of the secondary carrier is determined from the second indication field in case the first indication field is not present in the at least one indication field and the second indication field is present.

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 second indication domain.

For example, in case one, the DCI (the first DCI or the second DCI) is not configured with the first indication field, and the target indication field is a second indication field for indicating a sleep state of the secondary carrier in the DCI if 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.

Exemplary, 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 specially used for indicating 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.

Exemplary, for case three: the first DCI is 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 when the second DCI is DCI without data scheduling, and the terminal determines the sleep state of the auxiliary carrier according to the second indication domain.

For the second mode:

Step 522: in the case that a second indication field exists in the at least one indication field, a sleep state of the secondary carrier is determined according to the second indication field.

The second indication field exists in the at least one indication field, which may be that the at least one indication field exists: a first indication field and a second indication field; it may be that only the at least one indication field is present: and a second indication field. 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.

For example, for case one, the target indication field is a second indication field in the DCI for indicating a sleep state of the secondary carrier in the case that 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.

Exemplary, for case two: the target indication field is a second indication field dedicated to indicating 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 field.

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

In an alternative embodiment, the sleep state of the secondary carrier is determined from the first indication field in case the second indication field is not present in the at least one indication field and the first indication field is present.

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.

For example, 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 indicating 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.

Exemplary, for case two: the second DCI is not configured with a second indication domain, the target indication domain is a first indication domain which is specially used 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.

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

For the third mode:

Step 523: determining a sleep state of the secondary carrier according to the first indication domain and the second indication domain in the case that the first indication domain and the second indication domain exist in the at least one indication domain;

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.

At least one indication domain simultaneously exists a first indication domain and a 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 terminal uses 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 through the target indication domain.

In an alternative embodiment, in the case that the first indication field and the 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.

Since both the first indication domain and the second indication domain exist for indicating the sleep state of the auxiliary carrier, the terminal needs to determine the sleep state of the auxiliary carrier according to the first indication domain and the second indication domain at the same time, so as to avoid confusion caused by the fact that the sleep state of the auxiliary carrier indicated by the first indication domain is different from the sleep state of the auxiliary carrier indicated by the second indication domain, and the terminal does not expect that the sleep state of the auxiliary carrier indicated by the first indication domain is different from the sleep state of the auxiliary carrier indicated by the second indication domain.

According to the method provided by the embodiment, under the condition that at least one indication domain comprises at least one of the first indication domain and the second indication domain, 3 different ways for determining the sleep state of the auxiliary carrier are provided, and the flexibility of the sleep indication method of the auxiliary carrier is improved.

For the second indication field in the first case, 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 scheduling.

Referring to fig. 10 in combination, fig. 10 shows a flowchart of a method of determining whether DCI is DCI without data scheduling according to an exemplary embodiment of the present application, which may be applied to the terminal 13 shown in fig. 1. This embodiment may be implemented alone or in combination with the embodiment 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 first DCI or second DCI.

The frequency domain resource indication (Frequency Domain Resource Allocation, FDRA) domain is one of the information domains in the DCI. In the Uplink scheduling grant DCI (DCI formats 0-1 shown in table one), the information field is used to indicate the resource blocks allocated to transmit a Physical Uplink shared channel (Physical Uplink SHARED CHANNEL, PDSCH) for a terminal on one component carrier. In the downlink scheduling grant DCI (DCI format 1-1 shown in table two), the information field is used to indicate which resource blocks of the component carrier the PDSCH that the terminal needs to receive is allocated on. The component carrier is one of the carriers aggregated in the carrier aggregation scene.

The terminal determines whether the DCI is DCI without data scheduling through FDRA fields in the DCI.

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

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

Wherein the first type and the second type are two different resource allocation types, the first type is a bitmap-based allocation pattern 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, so that a terminal may determine whether there is a second indication field in the first case, a first indication field in the third case, and a second indication field according to the method, and select a target indication field based on a determination result, thereby ensuring accuracy of a sleep indication method of an auxiliary carrier.

In an alternative embodiment based on fig. 5, fig. 11 shows a flowchart of a sleep indication method 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, the 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 carrier is: by switching to the sleeping BWP or the non-sleeping BWP, a certain secondary carrier is put into the sleeping state or the non-sleeping state, respectively. After determining the sleep state of the auxiliary carrier, if a certain auxiliary carrier is switched from a non-sleep state to a sleep state, the terminal activates the sleep state of the BWP corresponding to the auxiliary carrier; if a certain auxiliary carrier is switched from the sleep state to the non-sleep state, the terminal adjusts BWP corresponding to the auxiliary carrier to the non-sleep state.

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

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

In summary, according to the method provided in this embodiment, the terminal implements adjustment of the sleep state of the auxiliary carrier by activating the sleep state of the BWP corresponding to the auxiliary carrier.

Fig. 13 is a block diagram illustrating a sleep indication apparatus for a secondary carrier, which may be implemented as a terminal or as a part of a terminal according to an exemplary embodiment of the present application, the apparatus including: 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, where the indication field is used to indicate a sleep state of an auxiliary carrier;

A determining module 1302 is configured to determine a sleep state of the secondary carrier based on a target indication field of the at least one indication field.

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 field is an information field dedicated to indicating a sleep state of the secondary carrier in the DCI, and the second indication field is an information field for indicating a sleep state of the secondary carrier in the DCI when the DCI is a DCI without data scheduling, and the first indication field and the second indication field 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; the first indication field is an information field dedicated to indicating a sleep state of the secondary carrier in the first DCI, and the second indication field is an information field dedicated to indicating 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; the first indication field is an information field for indicating a sleep state of the 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 the secondary carrier in the second DCI when the second DCI is a DCI without data scheduling.

In an alternative embodiment, the determining module 1302 is configured to determine a sleep state of the secondary carrier according to the first indication field if the first indication field is present in the at least one indication field.

In an alternative embodiment, the determining module 1302 is configured to determine the sleep state of the secondary carrier according to the second indication field if the first indication field is not present in the at least one indication field and the second indication field is present.

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

In an alternative embodiment, the determining module 1302 is configured to determine the sleep state of the secondary carrier according to the first indication field if the second indication field is not present in the at least one indication field and the first indication field is present.

In an alternative embodiment, the determining module 1302 is configured to determine a sleep state of the secondary carrier according to the first indication domain and the second indication domain in the presence of the first indication domain and the second indication domain in the at least one indication domain; 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 alternative embodiment, the receiving module 1301 is configured to, in the case that the first indication field and the second indication field exist in the at least one indication field, 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.

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

In an alternative embodiment, the determining module 1302 is configured to determine that the DCI is DCI without data scheduling in case that a resource allocation type of a partial bandwidth BWP corresponding to the secondary carrier is a first type and bits in a frequency domain resource indication domain are all 0; or, the determining module 1302 is configured to determine that the DCI is DCI without data scheduling in case that the resource allocation type of BWP corresponding to the secondary carrier is the second type and bits in the frequency domain resource indication domain 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 packets of the secondary carrier are configured by RRC, the n carrier packets corresponding one-to-one to n bits of the first indication field, n being a positive integer.

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

In an alternative embodiment, the second indication field includes: 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 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 packets of the auxiliary carrier are configured by RRC, the n carrier packets corresponding to n bits of the first indication field one-to-one, n being a positive integer; the m carrier packets of the auxiliary carrier are configured by RRC, the m carrier packets are in one-to-one correspondence with m bits of the second indication field, and m is a positive integer.

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

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

Fig. 14 is a schematic structural view of a terminal according to an exemplary embodiment of the present application, the terminal including: 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 via 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 of the method embodiments described above.

Further, the memory 104 may be implemented by any type of volatile or nonvolatile storage device or combination thereof, including but not limited to: magnetic or optical disks, electrically erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EEPROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), static ready-access Memory (Static Random Access Memory, SRAM), read-Only Memory (ROM), magnetic Memory, flash Memory, programmable Read-Only Memory (Programmable Read-Only Memory, PROM).

In an exemplary embodiment, there is also provided a computer readable storage medium having stored therein at least one instruction, at least one program, a code set, or an instruction set, which is loaded and executed by the processor to implement the sleep indication method of the auxiliary carrier wave executed by the terminal provided in the above respective 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 for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The foregoing description of the preferred embodiments of the present application is not intended to limit the application, but rather, the application is to be construed as limited to the appended claims.

Claims

1. A method of sleep indication for 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 an indication domain, the indication domain is used for indicating the sleep state of an auxiliary carrier, one indication domain corresponds to the sleep indication mode of the auxiliary carrier, and the indication domain comprises a first indication domain and a second indication domain; wherein the first indication field is an information field dedicated to indicating a sleep state of a secondary carrier in the DCI, and the second indication field is an information field dedicated to indicating a sleep state of the secondary carrier in the DCI if the DCI is a DCI without data scheduling, the first indication field and the second indication field belonging to the same DCI or two different DCIs; or, the first indication field is an information field dedicated to indicating a sleep state of the secondary carrier in the first DCI, and the second indication field is an information field dedicated to indicating a sleep state of the secondary carrier in the second DCI; or, the first indication field is an information field for indicating a sleep state of the 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 the secondary carrier in the second DCI if the second DCI is a DCI without data scheduling;

determining the sleep state of the auxiliary carrier according to the target indication domain in the indication domains, including: and determining the sleep state of the auxiliary 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 indication domain, wherein 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.

2. The method of claim 1, wherein determining the sleep state of the secondary carrier based on the target indication field of the indication fields further comprises:

And determining the sleep state of the auxiliary carrier according to the first indication domain when the first indication domain exists in the indication domain.

3. The method of claim 1, wherein determining the sleep state of the secondary carrier based on the target indication field of the indication fields further comprises:

And determining the sleep state of the auxiliary carrier according to the second indication domain when the second indication domain exists in the indication domain.

4. The method according to claim 1, wherein the method further comprises:

and determining whether the DCI is DCI without data scheduling according to a frequency domain resource indication domain in the DCI, wherein the DCI is a first DCI or a second DCI.

5. The method of claim 4, 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 DCI without data scheduling in a case where a resource allocation type of a partial bandwidth BWP corresponding to the secondary carrier is a first type and bits in the frequency domain resource indication domain are all 0;

Or alternatively, the first and second heat exchangers may be,

In case that the resource allocation type of BWP corresponding to the secondary carrier is the second type and bits in the frequency domain resource indication domain are all 1, it is determined that the DCI is DCI without data scheduling.

6. The method of claim 1, wherein the step of determining the position of the substrate comprises,

The first indication field is configured by a higher layer radio resource control RRC.

7. The method of claim 6, wherein the step of providing the first layer comprises,

The n carrier packets of the auxiliary carrier are configured by the RRC, the n carrier packets are in one-to-one correspondence with n bits of the first indication field, and n is a positive integer.

8. The method of claim 1, wherein the information indicated by the second indication field comprises, if the DCI is a DCI with data scheduling:

At least one of modulation and coding scheme information, new data indication information, redundancy version information, HARQ process number information, antenna port information and reference signal initial parameter information.

9. The method of claim 8, wherein the step of determining the position of the first electrode is performed,

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.

10. The method of claim 1, wherein the step of determining the position of the substrate comprises,

The first indication field is configured by a higher layer RRC;

the second indication field is configured by the RRC.

11. The method of claim 10, wherein the step of determining the position of the first electrode is performed,

The n carrier packets of the auxiliary carrier are configured by the RRC, the n carrier packets are in one-to-one correspondence with n bits of the first indication field, and n is a positive integer;

the m carrier packets of the auxiliary carrier are configured by the RRC, the m carrier packets are in one-to-one correspondence with m bits of the second indication field, and m is a positive integer.

12. The method of claim 1, wherein the step of determining the position of the substrate comprises,

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

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

13. The method of claim 12, wherein the step of determining the position of the probe is performed,

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;

14. The method according to claim 1, wherein the method further comprises:

and activating the sleep state of the corresponding BWP according to the sleep state of the auxiliary carrier.

15. A sleep indication apparatus for 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 an indication field, where the indication field is used to indicate a sleep state of an auxiliary carrier, one indication field corresponds to a sleep indication mode of the auxiliary carrier, and the indication field includes a first indication field and a second indication field; wherein the first indication field is an information field dedicated to indicating a sleep state of a secondary carrier in the DCI, and the second indication field is an information field dedicated to indicating a sleep state of the secondary carrier in the DCI if the DCI is a DCI without data scheduling, the first indication field and the second indication field belonging to the same DCI or two different DCIs; or, the first indication field is an information field dedicated to indicating a sleep state of the secondary carrier in the first DCI, and the second indication field is an information field dedicated to indicating a sleep state of the secondary carrier in the second DCI; or, the first indication field is an information field for indicating a sleep state of the 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 the secondary carrier in the second DCI if the second DCI is a DCI without data scheduling;

The determining module configured to determine, according to a target indication field in the indication fields, a sleep state of a secondary carrier includes: and determining the sleep state of the auxiliary 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 indication domain, wherein 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.

16. The apparatus of claim 15, wherein the device comprises a plurality of sensors,

The determining module is further configured to determine a sleep state of the secondary carrier according to the first indication domain if the first indication domain exists in the indication domain.

17. The apparatus of claim 15, wherein the device comprises a plurality of sensors,

The determining module is further configured to determine a sleep state of the secondary carrier according to the second indication domain if the second indication domain is present in the indication domain.

18. The apparatus of claim 15, wherein the device comprises a plurality of sensors,

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, where the DCI is a first DCI or a second DCI.

19. The apparatus of claim 18, wherein the device comprises a plurality of sensors,

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

Or alternatively, the first and second heat exchangers may be,

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

20. The apparatus of claim 15, wherein the device comprises a plurality of sensors,

21. The apparatus of claim 20, wherein the device comprises a plurality of sensors,

22. The apparatus of claim 15, wherein the information indicated by the second indication field comprises, if the DCI is a DCI with data scheduling:

23. The apparatus of claim 22, wherein the device comprises a plurality of sensors,

24. The apparatus of claim 15, wherein the device comprises a plurality of sensors,

The first indication field is configured by a higher layer RRC;

the second indication field is configured by the RRC.

25. The apparatus of claim 24, wherein the device comprises a plurality of sensors,

26. The apparatus of claim 15, wherein the device comprises a plurality of sensors,

27. The apparatus of claim 26, wherein the device comprises a plurality of sensors,

28. The apparatus of claim 15, wherein the apparatus further comprises: activating a module;

The activation module is configured to activate a sleep state of a corresponding BWP according to the sleep state of the secondary carrier.

29. A terminal, the terminal comprising:

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 secondary carrier sleep indication method of any one of claims 1 to 14.

30. A computer readable storage medium having stored therein executable instructions that are loaded and executed by a processor to implement the method of sleep indication for a secondary carrier as claimed in any one of claims 1 to 14.