CN117957900A

CN117957900A - Indication method, device, communication equipment and storage medium for PDCCH monitoring

Info

Publication number: CN117957900A
Application number: CN202280003340.2A
Authority: CN
Inventors: 李艳华; 付婷
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2024-04-30
Also published as: WO2024044918A1

Abstract

The embodiment of the disclosure provides a method for indicating PDCCH monitoring, wherein the method is executed by access network equipment, and the method comprises the following steps: sending indication information to a terminal; wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA.

Description

Indication method, device, communication equipment and storage medium for PDCCH monitoring

Technical Field

The disclosure relates to the technical field of wireless communication, but not limited to the technical field of wireless communication, and in particular relates to a method and a device for indicating PDCCH monitoring, a communication device and a storage medium.

Background

The augmented reality (XR, eXtended Reality) service is one of the types of services supported by the network. Typical service characteristics of XR service are high rate requirement and low delay requirement, and at this time, carrier aggregation transmission is usually required. In a physical downlink control channel (PDCCH, physical Downlink Control Channel) adaptive scheme, in order to achieve energy saving of a terminal, a base station may configure multiple sets of search space groups (SSSG, search Space Set groups) for the terminal, and the base station may also dynamically instruct the terminal not to need to monitor the PDCCH in a certain period of time. However, in the related art, the PDCCH listening adaptation scheme cannot be applied to the carrier aggregation scenario.

Disclosure of Invention

The embodiment of the disclosure discloses a method, a device, communication equipment and a storage medium for indicating PDCCH monitoring.

According to a first aspect of embodiments of the present disclosure, there is provided a method for indicating PDCCH monitoring, where the method is performed by an access network device, the method including:

sending indication information to a terminal;

Wherein the indication information is used for indicating at least one of the following:

Switching a search space or a search space group of a first carrier in carrier aggregation CA;

Switching a search space or a search space group of a first carrier group in the CA; and

And skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA.

In one embodiment, the method sends indication information to a terminal, including:

And sending the indication information to the terminal through a second carrier in the CA.

In one embodiment, the first carrier is a secondary carrier; the first carrier group is an auxiliary carrier group; the second carrier is a primary carrier.

In one embodiment of the present invention, in one embodiment,

The first carrier and the second carrier belong to the same or different Discontinuous Reception (DRX) groups;

Or alternatively

The first carrier group and the second carrier belong to the same or different discontinuous reception DRX groups.

In one embodiment, the indication information indicates the first carrier and/or the first carrier group that is active.

In one embodiment, the first search space or the first set of search spaces running on the first bandwidth portion BWP is determined according to a predetermined protocol in response to said first carrier being activated.

In one embodiment, configuration information is sent to the terminal;

Wherein the configuration information is used for the terminal to determine a first search space or a first search space group running on a first bandwidth part BWP when the first carrier is activated based on the configuration information.

In one embodiment of the present invention, in one embodiment,

In response to a first search space or a first set of search spaces running on a first BWP being unconfigured, the first search space or the first set of search spaces is determined based on a predetermined protocol.

In one embodiment, a predetermined set of search spaces is used for the first carrier or the first carrier set, the predetermined set of search spaces not configured with search spaces; or a predetermined search space for the first carrier or the first carrier group, the search space group not configured with a predetermined parameter.

In one embodiment, the indication information is used to indicate at least one of:

switching a search space of a first carrier wave in a CA from the first search space to a second search space;

Switching the search space of a first carrier in CA from the first search space group to a second search space group;

Switching the search space of a first carrier wave in CA from a second search space to the first search space;

switching the search space of a first carrier in CA from a second search space group to the first search space group;

switching the search space of a first carrier group in CA from the first search space to a second search space;

Switching the search space of a first carrier group in CA from the first search space group to a second search space group;

switching the search space of a first carrier group in CA from a second search space to the first search space; and

The search space of the first carrier group in the CA is switched from the second search space group to the first search space group.

switching the search space of a first carrier in CA from the preset search space to the first search space;

switching the search space of the first carrier in the CA from the preset search space group to the first search space group;

switching the search space of a first carrier in CA from the first search space to the preset search space;

Switching the search space of a first carrier in CA from the first search space group to the preset search space group;

Switching the search space of a first carrier group in CA from the preset search space to the first search space;

switching the search space of a first carrier group in CA from the preset search space group to the first search space group;

switching the search space of a first carrier group in CA from the first search space to the preset search space; and

The search space of the first carrier group in CA is switched from the first search space group to the predetermined search space group.

According to a second aspect of embodiments of the present disclosure, there is provided a method for indicating PDCCH monitoring, where the method is performed by a terminal, the method including:

Receiving indication information sent by access network equipment;

In one embodiment, the method receives indication information sent by an access network device, including:

And receiving the indication information sent by the access network equipment through a second carrier wave in the CA.

In one embodiment of the present invention, in one embodiment,

Or alternatively

In one embodiment, receiving configuration information sent by the access network device;

In one embodiment of the present invention, in one embodiment,

According to a third aspect of embodiments of the present disclosure, there is provided an indication device for PDCCH monitoring, where the device includes:

the sending module is used for sending indication information to the terminal;

According to a fourth aspect of embodiments of the present disclosure, there is provided an indication device for PDCCH monitoring, where the device includes:

the receiving module is used for receiving the indication information sent by the access network equipment;

According to a fifth aspect of embodiments of the present disclosure, there is provided a communication device comprising:

A processor;

A memory for storing the processor-executable instructions;

Wherein the processor is configured to: for executing the executable instructions, implementing the methods described in any of the embodiments of the present disclosure.

According to a sixth aspect of embodiments of the present disclosure, there is provided a computer storage medium storing a computer executable program which, when executed by a processor, implements the method of any embodiment of the present disclosure.

In the embodiment of the disclosure, indication information is sent to a terminal; wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. Here, since the indication information indicates the operation of the first carrier or the first carrier group in the carrier aggregation CA scenario, after receiving the indication information, the terminal may perform the operation of switching the search space of the first carrier or the first carrier group in the carrier aggregation scenario, switching the search space group, and/or skipping PDCCH monitoring based on the indication information, which improves the reliability and adaptability of PDCCH monitoring in the carrier aggregation scenario compared with the manner of how the above operation is not explicitly performed.

Drawings

Fig. 1 is a schematic diagram illustrating a structure of a wireless communication system according to an exemplary embodiment.

FIG. 2 is a schematic diagram illustrating search space group switching, according to an example embodiment.

Fig. 3 is a diagram illustrating a skipped PDCCH listening, according to an example embodiment.

Fig. 4 is a flowchart illustrating a method for indicating PDCCH monitoring according to an exemplary embodiment.

Fig. 5 is a flowchart illustrating a method for indicating PDCCH monitoring according to an exemplary embodiment.

Fig. 6 is a flowchart illustrating a method of indicating PDCCH monitoring according to an exemplary embodiment.

Fig. 7 is a flowchart illustrating a method of indicating PDCCH monitoring according to an exemplary embodiment.

Fig. 8 is a flowchart illustrating a method for indicating PDCCH monitoring according to an exemplary embodiment.

Fig. 9 is a flowchart illustrating a method for indicating PDCCH monitoring according to an exemplary embodiment.

Fig. 10 is a schematic diagram illustrating an indication apparatus for PDCCH monitoring according to an exemplary embodiment.

Fig. 11 is a schematic diagram illustrating an indication apparatus for PDCCH monitoring according to an exemplary embodiment.

Fig. 12 is a schematic structural view of a terminal according to an exemplary embodiment.

Fig. 13 is a block diagram of a base station, according to an example embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of embodiments of the present disclosure as detailed in the accompanying claims.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the disclosure. As used in this disclosure of embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination" depending on the context.

For purposes of brevity and ease of understanding, the terms "greater than" or "less than" are used herein in characterizing a size relationship. But it will be appreciated by those skilled in the art that: the term "greater than" also encompasses the meaning of "greater than or equal to," less than "also encompasses the meaning of" less than or equal to.

Referring to fig. 1, a schematic structural diagram of a wireless communication system according to an embodiment of the disclosure is shown. As shown in fig. 1, the wireless communication system is a communication system based on a mobile communication technology, and may include: a number of user equipments 110 and a number of base stations 120.

User device 110 may be, among other things, a device that provides voice and/or data connectivity to a user. The user equipment 110 may communicate with one or more core networks via a radio access network (Radio Access Network, RAN), and the user equipment 110 may be internet of things user equipment such as sensor devices, mobile phones, and computers with internet of things user equipment, for example, stationary, portable, pocket, hand-held, computer-built-in, or vehicle-mounted devices. Such as a Station (STA), subscriber unit (subscriber unit), subscriber Station (subscriber Station), mobile Station (mobile Station), remote Station (remote Station), access point, remote user equipment (remote terminal), access user equipment (ACCESS TERMINAL), user device (user terminal), user agent (user agent), user device (user device), or user equipment (user request). Or the user device 110 may be a device of an unmanned aerial vehicle. Alternatively, the user device 110 may be a vehicle-mounted device, for example, a laptop with a wireless communication function, or a wireless user device with an external laptop. Alternatively, the user device 110 may be a roadside device, for example, a street lamp, a signal lamp, or other roadside devices with wireless communication function.

The base station 120 may be a network-side device in a wireless communication system. Wherein the wireless communication system may be a fourth generation mobile communication technology (the 4th generation mobile communication,4G) system, also known as a long term evolution (Long Term Evolution, LTE) system; or the wireless communication system can also be a 5G system, also called a new air interface system or a 5G NR system. Or the wireless communication system may be a next generation system of the 5G system. Among them, the access network in the 5G system may be called NG-RAN (New Generation-Radio Access Network, new Generation radio access network).

The base station 120 may be an evolved node b (eNB) employed in a 4G system. Alternatively, the base station 120 may be a base station (gNB) in a 5G system that employs a centralized and distributed architecture. When the base station 120 adopts a centralized and distributed architecture, it generally includes a Centralized Unit (CU) and at least two Distributed Units (DUs). A protocol stack of a packet data convergence protocol (PACKET DATA Convergence Protocol, PDCP) layer, a radio link layer Control protocol (Radio Link Control, RLC) layer, and a medium access Control (MEDIA ACCESS Control, MAC) layer is arranged in the centralized unit; a Physical (PHY) layer protocol stack is provided in the distribution unit, and the specific implementation of the base station 120 is not limited in the embodiments of the present disclosure.

A wireless connection may be established between the base station 120 and the user equipment 110 over a wireless air interface. In various embodiments, the wireless air interface is a fourth generation mobile communication network technology (4G) standard-based wireless air interface; or the wireless air interface is a wireless air interface based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; or the wireless air interface can also be a wireless air interface based on the technical standard of the next generation mobile communication network of 5G.

In some embodiments, an E2E (End to End) connection may also be established between the user devices 110. Such as V2V (vehicle to vehicle, vehicle-to-vehicle) communications, V2I (vehicle to Infrastructure, vehicle-to-roadside device) communications, and V2P (vehicle to pedestrian, vehicle-to-person) communications among internet of vehicles communications (vehicle to everything, V2X).

Here, the above-described user equipment can be regarded as the terminal equipment of the following embodiment.

In some embodiments, the wireless communication system described above may also include a network management device 130.

Several base stations 120 are respectively connected to a network management device 130. The network management device 130 may be a core network device in a wireless communication system, for example, the network management device 130 may be a Mobility management entity (Mobility MANAGEMENT ENTITY, MME) in an evolved packet core (Evolved Packet Core, EPC). Or the network management device may be other core network devices, such as a service GateWay (SERVING GATEWAY, SGW), a public data network GateWay (Public Data Network GateWay, PGW), a Policy AND CHARGING Rules Function (PCRF), or a home subscriber server (Home Subscriber Server, HSS), etc. The embodiment of the present disclosure is not limited to the implementation form of the network management device 130.

For ease of understanding by those skilled in the art, the embodiments of the present disclosure enumerate a plurality of implementations to clearly illustrate the technical solutions of the embodiments of the present disclosure. Of course, those skilled in the art will appreciate that the various embodiments provided in the embodiments of the disclosure may be implemented separately, may be implemented in combination with the methods of other embodiments of the disclosure, and may be implemented separately or in combination with some methods of other related technologies; the embodiments of the present disclosure are not so limited.

In order to better understand the technical solution described in any embodiment of the present disclosure, first, an application scenario in the related art is described:

In an embodiment, a PDCCH adaptation scheme is introduced, please refer to fig. 2, a search space group may be dynamically switched, that is, a base station configures multiple sets of search space groups SSSG for a terminal, one space group may include one or more search spaces, and dynamically indicates switching of the search spaces. Different search space sets may have different configurations of period, frequency domain width, PDCCH candidate number, downlink control information to be monitored (DCI, downlink Control Information) format, etc. Thus, the terminal may have different energy consumption when listening to different sets of search spaces. For example, when the data transmission requirement is smaller, the terminal is switched to a search space set with a longer period, and can also be switched to a sleep state between two period points, so that the energy saving of the terminal side can be realized. Referring to fig. 3, PDCCH monitoring may be dynamically skipped, i.e., the base station dynamically indicates PDCCH channels that the terminal does not need to monitor for a certain period of time. During the period of time, the terminal can enter a sleep state, so that the energy saving of the terminal can be realized.

In one embodiment, in a unified dynamic PDCCH listening adaptive architecture, the base station issues a PDCCH indication, letting the terminal switch SSSG and/or skip PDCCH listening.

In the case of a terminal having multiple serving cells, the PDCCH listening adaptation instruction sent on a certain serving cell can only be applied to that serving cell, but not to other serving cells.

It should be noted that this method cannot be applied to the carrier aggregation scenario. However, in XR service, data transmission is often performed using carrier aggregation due to a large amount of traffic. New schemes need to be considered.

As shown in fig. 4, in this embodiment, there is provided a method for indicating PDCCH monitoring, where the method is performed by an access network device, and the method includes:

step 41, sending indication information to a terminal;

Here, the terminal related to the present disclosure may be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal, a Road Side Unit (RSU), a smart home terminal, an industrial sensing device, and/or a medical device, etc. In some embodiments, the terminal may be Redcap terminal or a predetermined version of a new air-interface NR terminal (e.g., NR terminal of R17).

The access network devices referred to in this disclosure may be base stations, which may be various types of base stations, for example, base stations of a third generation mobile communication (3G) network, base stations of a fourth generation mobile communication (4G) network, base stations of a fifth generation mobile communication (5G) network, or other evolved base stations.

In one embodiment, in a scenario in which a terminal performs data transmission based on carrier aggregation (CA, carrier Aggregation), indication information is sent to the terminal; wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. Here, the indication information may be a monitoring adaptive command issue through a PDCCH. The first carrier group may include at least two first carriers. The first carrier may also be referred to as a target carrier and the first carrier group may also be referred to as a target carrier group.

After the terminal receives the indication information, if the indication information indicates to switch the search space or the search space group of the first carrier in the carrier aggregation CA, the terminal switches the search space or the search space group of the first carrier in the carrier aggregation CA; or if the indication information indicates the search space or the search space group of the first carrier group in the switching CA, the terminal switches the search space or the search space group of the first carrier group in the CA; or if the indication information indicates that the physical downlink control channel PDCCH monitoring of the first carrier in the CA is skipped, the terminal skips the physical downlink control channel PDCCH monitoring of the first carrier in the CA.

In one embodiment, in the scenario where the terminal performs data transmission based on CA, the carriers used include a first carrier and a second carrier. Transmitting indication information to the terminal through the second carrier, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA.

In one embodiment, in the scenario where the terminal performs data transmission based on CA, the carriers used include a first carrier and a second carrier. Transmitting indication information to the terminal through the second carrier, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. Wherein the first carrier and the second carrier belong to the same discontinuous reception DRX group.

In one embodiment, in a scenario where the terminal performs data transmission based on CA, the carrier that performs the search space or the search space group is indicated as the first carrier group. Transmitting indication information to a terminal through any carrier in the first carrier group, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier group in carrier aggregation CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. That is, transmitting the instruction information (e.g., an instruction) on one carrier can be applied to a plurality of carriers included in the packet to which the carrier belongs, and the effect of saving signaling can be achieved.

In one embodiment, in the scenario where the terminal performs data transmission based on CA, the carriers used include a first carrier and a second carrier. Transmitting indication information to the terminal through the second carrier, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. Wherein the first carrier and the second carrier belong to different discontinuous reception DRX groups.

In one embodiment, in the scenario where the terminal performs data transmission based on CA, the carriers used include a first carrier and a second carrier. Transmitting indication information to the terminal through the second carrier, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. Wherein the first carrier group and the second carrier belong to the same discontinuous reception DRX group.

In one embodiment, in the scenario where the terminal performs data transmission based on CA, the carriers used include a first carrier and a second carrier. Transmitting indication information to the terminal through the second carrier, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. Wherein the first carrier group and the second carrier belong to different discontinuous reception, DRX, groups.

In one embodiment, in the scenario where the terminal performs data transmission based on CA, the carriers used include a first carrier and a second carrier. Transmitting indication information to the terminal through the second carrier, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. The indication information also indicates the first carrier and/or the first carrier group that is in effect.

In one embodiment, the first search space or the first set of search spaces running on the first bandwidth portion BWP is determined according to a predetermined protocol in response to said first carrier being activated. Wherein, the first BWP is a downlink BWP corresponding to firstActiveDownlinkBWP-Id (corresponding to one BWP).

In one embodiment, configuration information is sent to the terminal, wherein the configuration information is used for the terminal to determine a first search space or a first set of search spaces running on a first bandwidth part BWP when the first carrier is activated based on the configuration information.

In one embodiment, in response to the first carrier being activated, a first search space running on the first bandwidth portion BWP is FIRSTACTIVESEARCHSPACEID (the first active search space); the first search space group running on the first BWP is firstActivesearchSpaceGroup-Id (the first active search space group); in this way the first active search space or set of first search spaces when the first BWP is activated is introduced.

In one embodiment, the base station may designate the first active search space or set of search spaces for which the terminal is operating at a certain BWP; the BWP may be a configured BWP on the primary carrier.

In one embodiment, responsive to the above first search space or first set of search spaces being unconfigured, the first search space or first set of search spaces is determined based on a predetermined index (e.g., starting from index 0).

In one embodiment, a predetermined set of search spaces is used for the first carrier or the first carrier set, the predetermined set of search spaces not configured with search spaces; or a predetermined search space for the first carrier or the first carrier group, the search space group not configured with a predetermined parameter. The predetermined parameters may be monitoringSlotPeriodicityAndOffset listening periods and offsets. The preset search space or the preset search space group is a special type search space or search space group, namely an empty (empty) or dormant (dormant) search space or search space group, and the terminal does not need to monitor a downlink control channel at this time, so that the effect of saving electricity is achieved.

In one embodiment, the predetermined search space may be agreed by the protocol for only the secondary carrier.

In one embodiment, in a scenario in which the terminal performs data transmission based on CA, indication information is sent to the terminal; wherein the indication information is used for indicating at least one of the following: switching a search space of a first carrier wave in a CA from the first search space to a second search space; switching the search space of a first carrier in CA from the first search space group to a second search space group; switching the search space of a first carrier wave in CA from a second search space to the first search space; switching the search space of a first carrier in CA from a second search space group to the first search space group; switching the search space of a first carrier group in CA from the first search space to a second search space; switching the search space of a first carrier group in CA from the first search space group to a second search space group; switching the search space of a first carrier group in CA from a second search space to the first search space; and switching the search space of the first carrier group in the CA from the second search space group to the first search space group.

In one embodiment, when the first search space (group) is configured as a predetermined search space (group), it means switching from the non-listening state to the listening state; at this time, the second search space (group) may be preconfigured for the network.

In one embodiment, in a scenario in which the terminal performs data transmission based on CA, indication information is sent to the terminal; wherein the indication information is used for indicating at least one of the following: switching the search space of a first carrier in CA from the preset search space to the first search space; switching the search space of the first carrier in the CA from the preset search space group to the first search space group; switching the search space of a first carrier in CA from the first search space to the preset search space; switching the search space of a first carrier in CA from the first search space group to the preset search space group; switching the search space of a first carrier group in CA from the preset search space to the first search space; switching the search space of a first carrier group in CA from the preset search space group to the first search space group; switching the search space of a first carrier group in CA from the first search space to the preset search space; and switching the search space of the first carrier group in the CA from the first search space group to the preset search space group.

In one embodiment, the PDCCH adaptation indication may be extended, increasing the indication of the target carrier (first carrier) or the target carrier group (first carrier group).

In one embodiment, the target carrier (first carrier) and/or the target carrier group (first carrier group) may be explicitly indicated.

In one embodiment, the target carrier (first carrier) and/or the target carrier group (first carrier group) may be implicitly indicated. Illustratively, there is a correspondence between one indication bit of the information field of the indication information and one target carrier or one target carrier group, e.g. the 1 st bit of the information field corresponds to the first carrier or the first carrier group. It should be noted that, the first carrier or the first carrier group may issue an indication or a protocol assignment in advance, so that after receiving the indication information, the target carrier and/or the target carrier group may be determined based on the indication bit. In one embodiment, the first carrier group may include other secondary carriers besides the primary carrier, although the primary carrier may be included.

In one embodiment, the PDCCH adaptive indication may be extended, increasing the switch indication of the target carrier (first carrier) or the target carrier group (first carrier group), entering the dormant search space or search space group with a "0" indication; the terminal is indicated with a "1" to switch to FIRSTACTIVESEARCHSPACEID or firstActivesearchSpaceGroup-Id. Or enter a first search space or a first set of search spaces with a "01" indication; and "10" indicates entry into the second search space or the second set of search spaces.

In one embodiment, when a first carrier or a carrier of a first carrier group is activated, an initial state of a first search space or a set of search spaces running on a first activated BWP (which may also be understood as an activated first BWP) is a disabled state. When the initial state is the failure state, the PDCCH is not monitored.

In one embodiment, the instruction of the instruction information to instruct the terminal to monitor the search space of the PDCCH is used for the target carrier or the target carrier group (the first carrier or the first carrier group (may have a plurality of carriers)) to perform a search space or a search space group state change, for example, to switch from a disabled state to an enabled state, i.e. to switch from not monitoring the PDCCH to monitoring the PDCCH.

In one embodiment, the PDCCH adaptation indication is extended, i.e., a state change indication that increases the search space or group of search spaces, e.g., a dormant search space or group of search spaces is indicated with a "0"; while a "1" wakes up the search space or set of search spaces.

It should be noted that, as those skilled in the art may understand, the methods provided in the embodiments of the present disclosure may be performed alone or together with some methods in the embodiments of the present disclosure or some methods in the related art.

As shown in fig. 5, in this embodiment, there is provided a method for indicating PDCCH monitoring, where the method is performed by an access network device, and the method includes:

step 51, sending indication information to a terminal;

In one embodiment, the first BWP is a downstream BWP corresponding to firstActiveDownlinkBWP-Id.

In one embodiment, the first search space running on the first BWP is the first active search space, FIRSTACTIVESEARCHSPACEID.

In one embodiment, the first set of search spaces running on the first BWP is the first active set of search spaces, firstActivesearchSpaceGroup-Id.

It should be noted that the first search space or the first search space group may be configured to the terminal but not be effective, i.e., PDCCH listening is not performed.

In one embodiment, the first search space or the first set of search spaces is determined based on a predetermined protocol in response to the first search space or the first set of search spaces running on the first BWP being unconfigured.

As shown in fig. 6, in this embodiment, there is provided a method for indicating PDCCH monitoring, where the method is performed by an access network device, and the method includes:

Step 61, sending indication information to a terminal;

Switching the search space of a first carrier wave in CA from a preset search space to the first search space;

In one embodiment, the first search space running on the first BWP may be the first active search space, FIRSTACTIVESEARCHSPACEID.

In one embodiment, the first set of search spaces running on the first BWP may be the first active set of search spaces, firstActivesearchSpaceGroup-Id.

It should be noted that the first search space or the first search space group may be configured to the terminal but not be effective, i.e., PDCCH listening is not performed. .

As shown in fig. 7, in this embodiment, there is provided a method for indicating PDCCH monitoring, where the method is performed by a terminal, and the method includes:

Step 71, receiving indication information sent by access network equipment;

In one embodiment, in a scenario that a terminal performs data transmission based on carrier aggregation (CA, carrier Aggregation), receiving indication information sent by an access network device; wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. Here, the indication information may be a monitoring adaptive command issue through a PDCCH. The first carrier group may include at least two first carriers. The first carrier may also be referred to as a target carrier and the first carrier group may also be referred to as a target carrier group.

In one embodiment, in the scenario where the terminal performs data transmission based on CA, the carriers used include a first carrier and a second carrier. Receiving indication information sent by the access network device through the second carrier, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA.

In one embodiment, in the scenario where the terminal performs data transmission based on CA, the carriers used include a first carrier and a second carrier. Receiving indication information sent by the access network device through the second carrier, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. Wherein the first carrier and the second carrier belong to the same discontinuous reception DRX group.

In one embodiment, in a scenario where the terminal performs data transmission based on CA, the carrier that performs the search space or the search space group is indicated as the first carrier group. Receiving indication information through any carrier in the first carrier group, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier group in carrier aggregation CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. That is, transmitting the instruction information (e.g., an instruction) on one carrier can be applied to a plurality of carriers included in the packet to which the carrier belongs, and the effect of saving signaling can be achieved.

In one embodiment, in the scenario where the terminal performs data transmission based on CA, the carriers used include a first carrier and a second carrier. Receiving indication information sent by the access network device through the second carrier, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. Wherein the first carrier and the second carrier belong to different discontinuous reception DRX groups.

In one embodiment, in the scenario where the terminal performs data transmission based on CA, the carriers used include a first carrier and a second carrier. Receiving indication information sent by the access network device through the second carrier, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. Wherein the first carrier group and the second carrier belong to the same discontinuous reception DRX group.

In one embodiment, in the scenario where the terminal performs data transmission based on CA, the carriers used include a first carrier and a second carrier. Receiving indication information sent by the access network device through the second carrier, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. Wherein the first carrier group and the second carrier belong to different discontinuous reception, DRX, groups.

In one embodiment, in the scenario where the terminal performs data transmission based on CA, the carriers used include a first carrier and a second carrier. Receiving indication information sent by the access network device through the second carrier, wherein the indication information is used for indicating at least one of the following: switching a search space or a search space group of a first carrier in carrier aggregation CA; switching a search space or a search space group of a first carrier group in the CA; and skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA. The indication information also indicates the first carrier and/or the first carrier group that is in effect.

In one embodiment, configuration information sent by the access network device is received, wherein the configuration information is used for the terminal to determine a first search space or a first search space group running on a first bandwidth part BWP when the first carrier is activated based on the configuration information.

In one embodiment, in response to the first carrier being activated, a first search space running on the first bandwidth portion BWP is FIRSTACTIVESEARCHSPACEID (the first active search space); the first search space group running on the first BWP is firstActivesearchSpaceGroup-Id (the first active search space group); in this way the first search space or set of search spaces when the first BWP is activated is introduced.

In one embodiment, the base station may designate a first search space or set of search spaces for a terminal to switch to a certain BWP; the BWP may be a configured BWP on the primary carrier.

In one embodiment, the predetermined search space may be agreed to be used only for secondary carriers.

In one embodiment, in a scenario that a terminal performs data transmission based on a CA, receiving indication information sent by access network equipment; wherein the indication information is used for indicating at least one of the following: switching a search space of a first carrier wave in a CA from the first search space to a second search space; switching the search space of a first carrier in CA from the first search space group to a second search space group; switching the search space of a first carrier wave in CA from a second search space to the first search space; switching the search space of a first carrier in CA from a second search space group to the first search space group; switching the search space of a first carrier group in CA from the first search space to a second search space; switching the search space of a first carrier group in CA from the first search space group to a second search space group; switching the search space of a first carrier group in CA from a second search space to the first search space; and switching the search space of the first carrier group in the CA from the second search space group to the first search space group.

In one embodiment, in a scenario that a terminal performs data transmission based on a CA, receiving indication information sent by access network equipment; wherein the indication information is used for indicating at least one of the following: switching the search space of a first carrier in CA from the preset search space to the first search space; switching the search space of the first carrier in the CA from the preset search space group to the first search space group; switching the search space of a first carrier in CA from the first search space to the preset search space; switching the search space of a first carrier in CA from the first search space group to the preset search space group; switching the search space of a first carrier group in CA from the preset search space to the first search space; switching the search space of a first carrier group in CA from the preset search space group to the first search space group; switching the search space of a first carrier group in CA from the first search space to the preset search space; and switching the search space of the first carrier group in the CA from the first search space group to the preset search space group.

In one embodiment, when a first carrier or a carrier in the first carrier group is activated, the first search space or search space group status running on the first activated BWP is initially in a failure state, i.e. no listening of the PDCCH is performed at this time.

In one embodiment, the instruction of the instruction information to instruct the terminal to perform monitoring of the search space of the PDCCH is used for the target carrier or the target carrier group (the first carrier or the first carrier group (may have a plurality of carriers)) to perform a state change of the search space or the search space group, for example, to switch from a disabled state to an enabled state, i.e. to switch from not monitoring the PDCCH to monitoring the PDCCH.

In one embodiment, the existing PDCCH adaptation indication is extended, i.e. the state change indication of the search space or search space group is increased, e.g. the dormant search space or search space group is indicated with a "0"; while a "1" wakes up the search space or set of search spaces.

As shown in fig. 8, in this embodiment, there is provided a method for indicating PDCCH monitoring, where the method is performed by a terminal, and the method includes:

step 81, receiving indication information sent by access network equipment;

As shown in fig. 9, in this embodiment, there is provided a method for indicating PDCCH monitoring, where the method is performed by a terminal, and the method includes:

Step 91, receiving indication information sent by access network equipment;

In one embodiment, the first search space running on the first BWP may be the first active search space, i.e., FIRSTACTIVESEARCHSPACEID.

In one embodiment, the first set of search spaces running on the first BWP may be the first active set of search spaces, i.e., firstActivesearchSpaceGroup-Id.

In order to better illustrate the technical solutions of the present disclosure, the following further describes the technical solutions of the present disclosure by means of an exemplary embodiment:

EXAMPLE 1,

In one embodiment, the base station issues a PDCCH listening adaptation instruction (corresponding to the indication information of the present disclosure) for a multi-carrier aggregation scenario.

In one embodiment, the instruction of instructing the terminal to monitor the search space of the PDCCH is used for the target carrier or target carrier group (the first carrier or first carrier group (which may be plural)) to perform the search space or search space group switching.

In one embodiment, an instruction for instructing the terminal to monitor the search space for PDCCH is issued from the second carrier.

In one embodiment, the second carrier is a primary carrier; the first carrier is an auxiliary carrier, and the first carrier group is an auxiliary carrier group.

In one embodiment, the second carrier and the first carrier or the first carrier group belong to the same DRX group or different DRX groups.

In one embodiment, the effective target carrier or target carrier group may also be indicated in an instruction instructing the terminal to monitor the search space for PDCCH.

In one embodiment, the first search space or set of search spaces running on the first active BWP (which may also be understood as the active first BWP) may be agreed upon or notified in advance over the network when the carriers of the first carrier or first set of carriers are active. When the first carrier is activated, the first activated BWP is the downlink BWP corresponding to firstActiveDownlinkBWP-Id.

In one embodiment, the first search space or set of search spaces running on the first active BWP is FIRSTACTIVESEARCHSPACEID, the first active search space, or firstActivesearchSpaceGroup-Id, the first active set of search spaces.

In one embodiment, when the first carrier is activated, if the first search space or search space group network running on the first active BWP is not configured, then the network convention is followed, such as starting with index 0.

In one embodiment, when the first carrier is active, if the first active search space (FIRSTACTIVESEARCHSPACEID) or the first active search space group (firstActivesearchSpaceGroup-Id) network running on the first active BWP is not configured, then the network convention is followed, such as starting with index 0.

In one embodiment, dormant or empty search space or search space group concepts are introduced.

In one embodiment, no search space is configured in dormant or empty search space groups.

In one embodiment, dormant or empty search spaces may be:

a special type of search space (dormant search space) is newly defined in the protocol, and several parameters of the special type of search space are not configured, for example, the following parameters are not configured:

monitoringSlotPeriodicityAndOffset listening periods and offsets.

In one embodiment, dormant or empty search spaces or groups of search spaces are used only for secondary carriers.

In one embodiment, an instruction to instruct the terminal to monitor the search space for PDCCH is for the target carrier or group of target carriers (the first carrier or group of carriers (there may be multiple) to switch from the first search space or group of search spaces to the other search space or group of search spaces. Or instructions instructing the terminal to monitor the search space for PDCCH for the target carrier or group of target carriers (the first carrier or group of carriers (there may be multiple) to switch from the other search space or group of search spaces to the first search space or group of search spaces,

In one embodiment, the instruction instructing the terminal to monitor the search space for PDCCH is for the target carrier or group of target carriers (the first carrier or group of carriers (there may be multiple)) to switch from the first active search space or first active search space group to the other search space or search space group. Or an instruction instructing the terminal to monitor the search space of the PDCCH is used for the target carrier or target carrier group (the first carrier or first carrier group (may have a plurality of carriers)) to switch from the other search space or search space group to the first active search space or first active search space group. In one embodiment, the first active search space or set of active search spaces is FIRSTACTIVESEARCHSPACEID (search space) or firstActivesearchSpaceGroup-Id (search space set), which may be configured as dormant or empty search spaces or search space sets, i.e., not configured for PDCCH listening.

In one embodiment, the instruction instructing the terminal to monitor the search space of PDCCH is for the target carrier or group of target carriers (the first carrier or group of carriers (there may be multiple)) to switch from dormant/or empty search spaces or groups of search spaces to the second search space or groups of search spaces. It can be appreciated that, for example, PDCCH monitoring is performed on a first carrier, and PDCCH monitoring is not performed on a second carrier, and data needs to be received on a primary carrier to trigger a secondary carrier to perform PDCCH monitoring. Wherein the second search space or the second set of search spaces may be specified by the network. In one embodiment, the instruction instructing the terminal to monitor the search space for PDCCH is for the target carrier or target carrier group (the first carrier or first carrier group (which may be plural)) to switch from the second search space or second search space group to dormant or empty search spaces or search space groups.

In one embodiment, an instruction to instruct the terminal to monitor the search space for PDCCH is for the target carrier or group of target carriers (the first carrier or group of carriers (there may be multiple) to switch from the first search space or group of search spaces to the second search space or group of search spaces. Wherein the second search space or the second set of search spaces may be specified for the network.

In one embodiment, the instruction instructing the terminal to monitor the search space for PDCCH is for the target carrier or target carrier group (the first carrier or first carrier group (which may be plural)) to switch from the second search space or second search space group to the first search space or first search space group. Wherein the second search space or the second set of search spaces may be specified for the network.

If the second carrier and the first carrier belong to different DRX groups, this means that the indication of the second carrier on the first carrier turns on the transceiver to perform PDCCH monitoring.

In one embodiment, the existing PDCCH adaptation indication is extended, i.e. the indication of adding the target carrier or the target carrier group;

In one embodiment, the existing PDCCH adaptation indication is extended, i.e., an indication to increase the search space or set of search spaces, such as the target indicating to enter a dormant search space or set of search spaces with a "00"; and "01" indicates that the terminal switches to the first search space or the first search space group; "10" indicates that the terminal switches to the second search space or the second search space group.

In one embodiment, the instruction of instructing the terminal to monitor the search space of the PDCCH is used for the target carrier or the target carrier group (the first carrier or the first carrier group (there may be a plurality of carriers)) to perform the state change of the search space or the search space group. Such as from inactive to active (or from inactive to active, or from dormant to awake).

The state in the state change may include: the corresponding state is not enabled, disabled, validated, deactivated, activated, etc. Of course, other expressions are not excluded.

In one embodiment, when a first carrier or a carrier in a first carrier group is activated, a first search space or a search space group initial state running on a first activated BWP is a protocol pre-reservation or network configuration;

In one embodiment, when a first carrier or a carrier in the first carrier group is activated, the first search space or search space group running on the first activated BWP is initially in a failure state, i.e. no listening of the PDCCH is performed at this time.

In one embodiment, the existing PDCCH adaptation indication is extended, i.e. the state change indication of the search space or search space group is increased, e.g. the dormant search space or search space group is indicated with an indication bit of "0"; and an indication bit "1" is used to wake up a search space or group of search spaces.

As shown in fig. 10, an embodiment of the present disclosure provides an indicating device for PDCCH monitoring, where the device includes:

a sending module 101, configured to send indication information to a terminal;

As shown in fig. 11, an embodiment of the present disclosure provides an indicating device for PDCCH monitoring, where the device includes:

A receiving module 111, configured to receive indication information sent by an access network device;

The embodiment of the disclosure provides a communication device, which comprises:

A processor;

A memory for storing processor-executable instructions;

Wherein the processor is configured to: for executing executable instructions, implements a method that is applicable to any of the embodiments of the present disclosure.

The processor may include, among other things, various types of storage media, which are non-transitory computer storage media capable of continuing to memorize information stored thereon after a power down of the communication device.

The processor may be coupled to the memory via a bus or the like for reading the executable program stored on the memory.

The embodiments of the present disclosure also provide a computer storage medium, where the computer storage medium stores a computer executable program that when executed by a processor implements the method of any embodiment of the present disclosure.

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

As shown in fig. 12, one embodiment of the present disclosure provides a structure of a terminal.

Referring to the terminal 800 shown in fig. 12, the present embodiment provides a terminal 800, which may be embodied as a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.

Referring to fig. 12, the terminal 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816.

The processing component 802 generally controls overall operation of the terminal 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interactions between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the device 800. Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power supply component 806 provides power to the various components of the terminal 800. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the terminal 800.

The multimedia component 808 includes a screen between the terminal 800 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or sliding action, but also the duration and pressure associated with the touch or sliding operation. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operational mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the terminal 800 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 further includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of the terminal 800. For example, the sensor assembly 814 may detect an on/off state of the device 800, a relative positioning of the assemblies, such as a display and keypad of the terminal 800, the sensor assembly 814 may also detect a change in position of the terminal 800 or a component of the terminal 800, the presence or absence of user contact with the terminal 800, an orientation or acceleration/deceleration of the terminal 800, and a change in temperature of the terminal 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communication between the terminal 800 and other devices, either wired or wireless. The terminal 800 may access a wireless network based on a communication standard, such as Wi-Fi,2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the terminal 800 can be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 804 including instructions executable by processor 820 of terminal 800 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

As shown in fig. 13, an embodiment of the present disclosure shows a structure of a base station. For example, base station 900 may be provided as a network-side device. Referring to fig. 13, base station 900 includes a processing component 922 that further includes one or more processors and memory resources represented by memory 932 for storing instructions, such as applications, executable by processing component 922. The application programs stored in memory 932 may include one or more modules that each correspond to a set of instructions. Further, processing component 922 is configured to execute instructions to perform any of the methods described above as applied at the base station.

Base station 900 may also include a power component 926 configured to perform power management for base station 900, a wired or wireless network interface 950 configured to connect base station 900 to a network, and an input output (I/O) interface 958. The base station 900 may operate based on an operating system stored in memory 932, such as Windows Server TM, mac OS XTM, unixTM, linuxTM, freeBSDTM, or the like.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

A method of indicating PDCCH listening, wherein the method is performed by an access network device, the method comprising:

sending indication information to a terminal;

Wherein the indication information is used for indicating at least one of the following:

Switching a search space or a search space group of a first carrier in carrier aggregation CA;

Switching a search space or a search space group of a first carrier group in the CA; and

And skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA.
The method of claim 1, wherein the method transmits indication information to a terminal, comprising:

And sending the indication information to the terminal through a second carrier in the CA.
The method of claim 1 or 2, wherein the first carrier is a secondary carrier; the first carrier group is an auxiliary carrier group; the second carrier is a primary carrier.
The method of claim 3, wherein,

The first carrier and the second carrier belong to the same or different Discontinuous Reception (DRX) groups;

Or alternatively

The first carrier group and the second carrier belong to the same or different discontinuous reception DRX groups.
The method of claim 1, wherein the indication information indicates the first carrier and/or the first carrier group that is active.
The method of claim 1, wherein a first search space or a first set of search spaces running on the first bandwidth portion BWP is determined according to a predetermined protocol in response to the first carrier being activated.
The method of claim 1, wherein the method further comprises:

transmitting configuration information to the terminal;

Wherein the configuration information is used for the terminal to determine a first search space or a first search space group running on a first bandwidth part BWP when the first carrier is activated based on the configuration information.
The method of claim 6, wherein,

The first search space or the first set of search spaces is determined based on a predetermined protocol in response to the first search space or the first set of search spaces running on the first BWP being unconfigured.
The method of claim 1, wherein a predetermined set of search spaces is used for the first carrier or the first carrier set, the predetermined set of search spaces not configured with search spaces; or a predetermined search space for the first carrier or the first carrier group, the search space group not configured with a predetermined parameter.
The method of claim 8 or 9, wherein the indication information is used to indicate at least one of:

switching a search space of a first carrier wave in a CA from the first search space to a second search space;

Switching the search space of a first carrier in CA from the first search space group to a second search space group;

Switching the search space of a first carrier wave in CA from a second search space to the first search space;

switching the search space of a first carrier in CA from a second search space group to the first search space group;

switching the search space of a first carrier group in CA from the first search space to a second search space;

Switching the search space of a first carrier group in CA from the first search space group to a second search space group;

switching the search space of a first carrier group in CA from a second search space to the first search space; and

The search space of the first carrier group in the CA is switched from the second search space group to the first search space group.
The method of claim 8 or 9, wherein the indication information is used to indicate at least one of:

switching the search space of a first carrier in CA from the preset search space to the first search space;

switching the search space of the first carrier in the CA from the preset search space group to the first search space group;

switching the search space of a first carrier in CA from the first search space to the preset search space;

Switching the search space of a first carrier in CA from the first search space group to the preset search space group;

Switching the search space of a first carrier group in CA from the preset search space to the first search space;

switching the search space of a first carrier group in CA from the preset search space group to the first search space group;

switching the search space of a first carrier group in CA from the first search space to the preset search space; and

The search space of the first carrier group in CA is switched from the first search space group to the predetermined search space group.
A method for indicating PDCCH monitoring, wherein the method is performed by a terminal, the method comprising:

Receiving indication information sent by access network equipment;

Wherein the indication information is used for indicating at least one of the following:

Switching a search space or a search space group of a first carrier in carrier aggregation CA;

Switching a search space or a search space group of a first carrier group in the CA; and

And skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA.
The method of claim 12, wherein the method receives indication information sent by an access network device, and comprises:

And receiving the indication information sent by the access network equipment through a second carrier wave in the CA.
The method of claim 12 or 13, wherein the first carrier is a secondary carrier; the first carrier group is an auxiliary carrier group; the second carrier is a primary carrier.
The method of claim 14, wherein,

The first carrier and the second carrier belong to the same or different Discontinuous Reception (DRX) groups;

Or alternatively

The first carrier group and the second carrier belong to the same or different discontinuous reception DRX groups.
The method of claim 12, wherein the indication information indicates the first carrier and/or the first carrier group that is active.
The method of claim 12, wherein the first search space or the first set of search spaces running on the first bandwidth portion BWP is determined according to a predetermined protocol in response to the first carrier being activated.
The method of claim 12, wherein the method further comprises:

receiving configuration information sent by the access network equipment;

Wherein the configuration information is used for the terminal to determine a first search space or a first search space group running on a first bandwidth part BWP when the first carrier is activated based on the configuration information.
The method of claim 17, wherein,

The first search space or the first set of search spaces is determined based on a predetermined protocol in response to the first search space or the first set of search spaces running on the first BWP being unconfigured.
The method of claim 12, wherein a predetermined set of search spaces is used for the first carrier or the first carrier set, the predetermined set of search spaces not configured with search spaces; or a predetermined search space for the first carrier or the first carrier group, the search space group not configured with a predetermined parameter.
The method of claim 19 or 20, wherein the indication information is used to indicate at least one of:

switching a search space of a first carrier wave in a CA from the first search space to a second search space;

Switching the search space of a first carrier in CA from the first search space group to a second search space group;

Switching the search space of a first carrier wave in CA from a second search space to the first search space;

switching the search space of a first carrier in CA from a second search space group to the first search space group;

switching the search space of a first carrier group in CA from the first search space to a second search space;

Switching the search space of a first carrier group in CA from the first search space group to a second search space group;

switching the search space of a first carrier group in CA from a second search space to the first search space; and

The search space of the first carrier group in the CA is switched from the second search space group to the first search space group.
The method of claim 19 or 20, wherein the indication information is used to indicate at least one of:

switching the search space of a first carrier in CA from the preset search space to the first search space;

switching the search space of the first carrier in the CA from the preset search space group to the first search space group;

switching the search space of a first carrier in CA from the first search space to the preset search space;

Switching the search space of a first carrier in CA from the first search space group to the preset search space group;

Switching the search space of a first carrier group in CA from the preset search space to the first search space;

switching the search space of a first carrier group in CA from the preset search space group to the first search space group;

switching the search space of a first carrier group in CA from the first search space to the preset search space; and

The search space of the first carrier group in CA is switched from the first search space group to the predetermined search space group.
An indication device for PDCCH monitoring, wherein the device comprises:

the sending module is used for sending indication information to the terminal;

Wherein the indication information is used for indicating at least one of the following:

Switching a search space or a search space group of a first carrier in carrier aggregation CA;

Switching a search space or a search space group of a first carrier group in the CA; and

And skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA.
An indication device for PDCCH monitoring, wherein the device comprises:

the receiving module is used for receiving the indication information sent by the access network equipment;

Wherein the indication information is used for indicating at least one of the following:

Switching a search space or a search space group of a first carrier in carrier aggregation CA;

Switching a search space or a search space group of a first carrier group in the CA; and

And skipping Physical Downlink Control Channel (PDCCH) monitoring of the first carrier in the CA.
A communication device, comprising:

An antenna;

A memory;

A processor, coupled to the antenna and the memory, respectively, configured to control the transceiving of the antenna and to enable the method provided in any one of claims 1 to 11 or 12 to 22 by executing computer executable instructions stored on the memory.
A computer storage medium storing computer executable instructions which, when executed by a processor, enable the method provided by any one of claims 1 to 11 and 12 to 22 to be carried out.