CN110740024B

CN110740024B - CSI reporting method, terminal and network equipment

Info

Publication number: CN110740024B
Application number: CN201810805940.6A
Authority: CN
Inventors: 杨晓东; 潘学明
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-07-20
Filing date: 2018-07-20
Publication date: 2021-09-28
Anticipated expiration: 2038-07-20
Also published as: CN110740024A; WO2020015679A1

Abstract

The embodiment of the invention provides a CSI reporting method, a terminal and network equipment, relates to the technical field of communication, and aims to solve the problem that UE reports wrong CSI in the prior art because the UE cannot accurately know the number of BWPs currently activated by the network equipment. The method comprises the following steps: acquiring indication information; the indication information is used for indicating the terminal to report CSI corresponding to a first unit frequency resource; the first unit frequency resource includes: all or part of unit frequency resources activated by the terminal and/or all or part of unit frequency resources deactivated by the terminal; the unit frequency resource includes: a bandwidth part BWP or a carrier cell CC; and reporting the CSI to the network equipment according to the indication information.

Description

CSI reporting method, terminal and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, a terminal, and a network device for reporting Channel State Information (CSI).

Background

In the 5G NR system, a network device configures a set of Bandwidth parts (BWPs) available for each cell for a UE through Radio Resource Control (RRC) signaling, and dynamically switches BWPs to be started through L1 signaling, that is, when the network device activates one BWP, the currently activated BWP is deactivated through L1 signaling. Generally, activation/deactivation of BWP is activation/deactivation of a Physical Downlink Control Channel (PDCCH).

In the prior art, when reporting CSI of activated and/or deactivated BWPs, the UE reports the number of currently activated and/or deactivated BWPs based on the network device, however, since the L1 signaling for activating and deactivating BWPs is not stable, the UE is prone to lose the signaling, so that the UE cannot accurately know the number of currently activated BWPs of the network device, and further the UE reports wrong CSI.

For example, the network side activates 3 BWPs of the UE, the network side wants to further deactivate one of the BWPs, and if the PDCCH deactivation signaling (i.e., L1 signaling) is lost, the UE does not deactivate the BWP, and at this time, the network side will understand that the UE currently activates only 2 BWPs, that is, the UE will report CSI corresponding to 2 activated BWPs, however, in an actual scenario, the UE side will still report CSI corresponding to 3 activated BWPs.

Disclosure of Invention

Embodiments of the present invention provide a CSI reporting method, a terminal, and a network device, so as to solve the problem in the prior art that a UE reports an incorrect CSI because the UE cannot accurately know the number of BWPs currently activated by the network device.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a CSI reporting method, which is applied to a terminal, and the method includes:

acquiring indication information; the indication information is used for indicating the terminal to report CSI corresponding to a first unit frequency resource; the first unit frequency resource includes: all or part of unit frequency resources activated by the terminal and/or all or part of unit frequency resources deactivated by the terminal; the unit frequency resource includes: BWP or Carrier unit (CC);

and reporting the CSI to network equipment according to the indication information.

In a second aspect, an embodiment of the present invention provides a CSI reporting method, which is applied to a network device, and the method includes:

sending indication information to a terminal;

the indication information is used for indicating the terminal to report CSI corresponding to a first unit frequency resource; the indication information is also used for indicating the terminal to report the CSI to the network equipment according to the indication information; the first unit frequency resource includes: all or part of unit frequency resources activated by the terminal and/or all or part of unit frequency resources deactivated by the terminal; the unit frequency resource includes: BWP or CC;

and receiving the CSI sent by the terminal.

In a third aspect, an embodiment of the present invention provides a terminal, including:

the acquisition module is used for acquiring the indication information; the indication information is used for indicating the terminal to report CSI corresponding to a first unit frequency resource; the first unit frequency resource includes: all or part of unit frequency resources activated by the terminal and/or all or part of unit frequency resources deactivated by the terminal; the unit frequency resource includes: BWP or CC;

and the reporting module is used for reporting the CSI to network equipment according to the indication information acquired by the acquisition module.

In a fourth aspect, an embodiment of the present invention provides a network device, including:

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

and the receiving module is used for receiving the CSI sent by the terminal.

In a fifth aspect, an embodiment of the present invention provides a terminal, including a processor, a memory, and a computer program stored in the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps of the CSI reporting method according to the first aspect.

In a sixth aspect, an embodiment of the present invention provides a network device, including a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps of the CSI reporting method according to the second aspect.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the CSI reporting method are implemented.

In the embodiment of the present invention, the network device sends the indication information to the terminal to indicate the terminal to report the CSI corresponding to the first unit frequency resource to the network device, and the first unit frequency resource includes all or part of the unit frequency resources activated by the terminal and/or all or part of the unit frequency resources deactivated by the terminal, so that the terminal is ensured to be capable of reporting the CSI flexibly and accurately, that is, reporting the CSI corresponding to the active BWP and/or the deactivated BWP accurately.

Drawings

Fig. 1 is a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention;

fig. 2 is a first flowchart of a CSI reporting method according to an embodiment of the present invention;

fig. 3 is a second flowchart of a CSI reporting method according to an embodiment of the present invention;

fig. 4 is a third schematic flow chart of a CSI reporting method according to an embodiment of the present invention;

fig. 5 is a fourth schematic flowchart of a CSI reporting method according to an embodiment of the present invention;

fig. 6 is a first schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 7 is a first schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a network device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical scheme provided by the invention can be applied to various communication systems, such as a 5G communication system, a future evolution system or a plurality of communication convergence systems and the like. A variety of application scenarios may be included, for example, scenarios such as Machine to Machine (M2M), D2M, macro and micro Communication, enhanced Mobile Broadband (eMBB), ultra high reliability and ultra Low Latency Communication (urrllc), and mass internet of things Communication (mtc). These scenarios include, but are not limited to: the communication between the terminals, the communication between the network devices, or the communication between the network devices and the terminals. The embodiment of the invention can be applied to the communication between the network equipment and the terminal in the 5G communication system, or the communication between the terminal and the terminal, or the communication between the network equipment and the network equipment.

Fig. 1 shows a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention. As shown in fig. 1, the communication system includes at least one network device 100 (only one is shown in fig. 1) and one or more terminals 200 to which each network device 100 is connected.

The network device 100 may be a base station, a core network device, a Transmission and Reception node (TRP), a relay station, an access Point, or the like. The network device 100 may be a Base Transceiver Station (BTS) in a Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA) network, or may be an nb (nodeb) in Wideband Code Division Multiple Access (WCDMA), or may be an eNB or enodeb (evolved nodeb) in LTE. The Network device 100 may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario. The network device 100 may also be a network device in a 5G communication system or a network device in a future evolution network. The words used are not to be construed as limitations of the invention.

The terminal 200 may be a wireless terminal, which may be a device providing voice and/or other traffic data connectivity to a user, a handheld device having wireless communication functionality, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved PLMN network, etc., as well as a wired terminal. A Wireless terminal may communicate with one or more core networks via a Radio Access Network (RAN), and may be a mobile terminal, such as a mobile telephone (or "cellular" telephone) and a computer with a mobile terminal, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device that exchanges voice and/or data with the RAN, a Personal Communication Service (PCS) telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and the like, or a mobile device, a User Equipment (User Equipment, UE), a UE terminal, an Access terminal, a Wireless Communication device, a terminal unit, a terminal station, a Radio Access Network (wlan), a terminal station, a mobile terminal, a mobile Communication device, a terminal unit, a terminal station, and a mobile terminal, A Mobile Station (Mobile Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Station, a Remote Terminal (Remote Terminal), a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a User Agent (User Agent), a Terminal device, and the like. As an example, in the embodiment of the present invention, fig. 1 illustrates that the terminal is a mobile phone.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship; in the formula, the character "/" indicates that the preceding and following related objects are in a relationship of "division". The term "plurality" herein means two or more, unless otherwise specified.

For the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", and the like are used to distinguish the same items or similar items with basically the same functions or actions, and those skilled in the art can understand that the words "first", "second", and the like do not limit the quantity and execution order.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion. In the embodiments of the present invention, the meaning of "a plurality" means two or more unless otherwise specified.

Fig. 2 shows a flowchart of a CSI reporting method according to an embodiment of the present invention, and as shown in fig. 2, the CSI reporting method may include:

step 201: and the terminal acquires the indication information.

In the embodiment of the present invention, the indication information is used to indicate the terminal to report the CSI corresponding to the first unit frequency resource. The first unit frequency resource includes: all or part of the unit frequency resources activated by the terminal and/or all or part of the unit frequency resources deactivated by the terminal. Wherein, the unit frequency resource includes: BWP or CC. The above-mentioned CC is CC to which CA is polymerized.

It should be noted that the first unit frequency resource may be related to a unit frequency resource activated by the network device, or may be unrelated to a unit frequency resource activated by the network device, and the present invention is not limited thereto.

Example 1: the network device activates three BWPs, BWP1, BWP2, and BWP3, and the network device wants to further deactivate BWP3, if the L1 signaling is lost, the terminal does not deactivate BWP3, that is, the BWP activated by the terminal is still three BWPs, BWP1, BWP2, and BWP 3. At this time, if the network device sends the indication information to the terminal to indicate the terminal to report the CSI corresponding to BWP1 and BWP2, the terminal may report the CSI of BWP1 and BWP 2.

Example 2: before activating three BWPs, namely, BWP1, BWP2 and BWP3, the network device may send indication information to the terminal in advance to indicate the terminal to report CSI of the three BWPs, namely, BWP1, BWP2 and BWP3, and if the terminal only activates BWP1 and BWP2 and deactivates BWP3 at this time, the terminal may report CSI of activating BWP1 and BWP2 and deactivating BWP 3.

Optionally, in this embodiment of the present invention, the indication information is specifically used to indicate the number N of the first unit frequency resources and/or the first unit frequency resources; n is a positive integer greater than or equal to 1.

Optionally, in an embodiment of the present invention, the indication information includes at least one of the following: an identification of the first unit-frequency resource (e.g., index of BWP, or index of CC), a number N of the first unit-frequency resources, and a group identification of the unit-frequency resource group; wherein N is a positive integer greater than or equal to 1, and the unit-frequency resource group includes a first unit-frequency resource.

It should be noted that the unit-frequency resource group (i.e., CC group or BWP group) may be configured by the network device to the terminal (e.g., configured by the network device to the terminal by RRC signaling), or predefined (e.g., specified by a protocol). That is, the network device may configure to the terminal which BWPs or which BWPs of CCs belong to a group, or predefine which BWPs or BWPs of CCs belong to a group in advance.

Step 202: and the terminal reports the CSI corresponding to the first unit frequency resource to the network equipment according to the indication information.

Optionally, in the embodiment of the present invention, the step 201 may be implemented in at least three ways.

The first implementation mode comprises the following steps:

illustratively, the step 201 includes the following steps:

step 201 a: and the terminal receives the indication information sent to the terminal by the network equipment.

Correspondingly, the opposite terminal network equipment sends the indication information to the terminal. At this time, the indication information is specifically used for indicating the terminal to report CSI to the network device according to the indication information.

The network device in the embodiment of the present invention may be a network device in the communication system shown in fig. 1, for example, a base station; the terminal in the embodiment of the present invention may be a terminal in the communication system shown in fig. 1.

The second implementation mode comprises the following steps:

illustratively, as shown in fig. 3, the step 201 specifically includes the following steps:

step 201b 1: the network device transmits the PDCCH to the terminal.

Step 201b 2: and the terminal decodes the PDCCH acquired by the terminal and acquires the indication information carried in the PDCCH.

For example, for aperiodic CQI reporting, the network device may directly carry indication information in the PDCCH to indicate the terminal to report CSI corresponding to the first unit frequency resource. For example, the network device directly instructs the terminal to report the CSI of BWP1, BWP2, BWP3 in the PDCCH, and the terminal can obtain the indication information by decoding the PDCCH after monitoring the PDCCH, so as to report the CSI of BWP1, BWP2, BWP 3.

The third implementation mode comprises the following steps:

in this embodiment of the present invention, the indication information may be carried in an RRC signaling or a Media Access Control entity (MAC CE).

Example 3: when the network device activates 3 BWPs or CCs, the network device only reports CSI of 3 BWPs or CCs through the RRC signaling configuration terminal.

For example, the embodiment of the present invention may separately perform the activation of reporting the CSI and the activation of the BWP or CC. Specifically, when BWP or CC is activated/deactivated by using PDCCH, the reporting of CSI is no longer dependent on the activation/deactivation of BWP or CC. Wherein the activation/deactivation of BWP or CC indicates: whether to monitor PDCCH on the BWP, whether to receive PDSCH on the BWP or CC, and whether to transmit PUSCH on the BWP or CC. At this time, if the CSI needs to be sent, the MAC CE may be used to activate the reporting of the CSI.

Example 4: when the network device activates 5 BWPs through the PDCCH, if the CSI of the 5 BWPs is not activated yet, the network device further sends indication information through the MAC CE, where the indication information is a BWP CSI activation command indication, and is used to indicate the terminal to activate CSI transmission of all or part of the 5 BWPs, so as to indicate the terminal to activate CSI transmission of all or part of the BWPs in the 5 BWPs within a specified time.

For example, the indication information is used to indicate that transmission of CSI for BWP1, BWP2, and BWP3 is activated, and after receiving the indication information, the terminal activates transmission of CSI for BWP1, BWP2, and BWP3 within a predetermined time according to the indication of the indication information.

The fourth implementation mode comprises the following steps:

exemplarily, as shown in fig. 4, in the embodiment of the present invention, the step 201 specifically includes the following steps:

step 201c 1: the network device transmits the PDCCH to the terminal on the first BWP according to a second predetermined rule.

Step 201c 2: the terminal decodes the PDCCH acquired by the terminal and acquires indication information.

In an embodiment of the present invention, the indication information is information of a first BWP in which a terminal or a PDCCH is located. The first BWP is a BWP activated by a network device or a BWP in a CC.

Optionally, in the embodiment of the present invention, the step 202 may be implemented in at least two ways.

The first implementation mode comprises the following steps:

for example, as shown in fig. 5, in the embodiment of the present invention, in a scenario that the indication information is specifically used for indicating the number N of the first unit frequency resources, the step 202 specifically includes the following steps:

step 202 a: and the terminal reports the CSI corresponding to the first unit frequency resource to the network equipment according to the indication information and the first preset rule.

Wherein the first predetermined rule comprises at least one of: the unit frequency resource of N before the channel quality rank and the unit frequency resource of N before the unit frequency resource number rank.

For example, the network device indicates the number of BWPs or CCs currently activated by the terminal to the terminal through the indication information, and the terminal may determine which BWPs or CCs are specifically activated by the terminal according to the first predetermined rule. For example, the network device configures, through an RRC message, the terminal to report CSI for only 3 BWPs, so that the terminal does not understand an error for the PUCCH format, and further, for the specific BWPs activated by the network device, may adopt multiple rule definitions, for example, which three BWPs are best 3 channel commands, or the maximum 3 BWP indexes, or some special BWPs (e.g., first BWPs, or default BWPs, etc.).

Further, in this embodiment of the present invention, the first predetermined rule is configured by the network device to the terminal (for example, the network device is configured to the terminal by using RRC signaling), or is predefined (for example, specified by a protocol).

It should be noted that this implementation manner may be combined with at least one of the four implementation manners of step 201, which is not limited in this embodiment of the present invention.

The second implementation mode comprises the following steps:

for example, as shown in fig. 4, in the embodiment of the present invention, in combination with the contents in step 201c1 and step 201c2, step 202 specifically includes the following steps:

step 202 c: and the terminal reports the CSI corresponding to the first unit frequency resource to the network equipment according to the indication information and the second preset rule.

In an embodiment of the present invention, when the first unit frequency resource is BWP, the second predetermined rule includes at least one of the following: the first unit frequency resource is a first BWP, and the first unit frequency resource is a second BWP which has a corresponding relation with the first BWP or a BWP in a BWP group; or, when the first unit frequency resource is a CC, the second predetermined rule includes at least one of the following: the first unit frequency resource is a first BWP, and the first unit frequency resource is a CC in a first CC or a CC group corresponding to the first BWP.

Further, in the embodiment of the present invention, the second predetermined rule is configured by the network device to the terminal (for example, configured by the network device to the terminal by using RRC signaling), or is predefined (for example, specified by a protocol).

The third implementation mode comprises the following steps:

illustratively, in an example, when the first unit frequency resource includes at least one unit frequency resource activated by the terminal, the foregoing step 202 specifically includes the following steps:

step 202 d: and the terminal reports the CSI corresponding to all the first unit frequency resources to the network equipment according to the indication information.

For example, if the network device sends the indication information to the terminal, the network device indicates the terminal to report the CSI of three BWPs, BWP1, BWP2, and BWP 3. If the terminal receives the indication information, the terminal activates BWP1 and deactivates BWP2 and BWP3, and the terminal reports CSI for activating BWP1 and deactivating BWP2 and BWP 3.

In addition, it should be noted that, when the first unit frequency resources are all unit frequency resources deactivated by the terminal, the terminal does not report the CSI to the network device.

In the CSI reporting method provided in the embodiment of the present invention, the network device sends the indication information to the terminal to indicate the terminal to report the CSI corresponding to the first unit frequency resource to the network device, and the first unit frequency resource includes all or a part of the unit frequency resources activated by the terminal and/or all or a part of the unit frequency resources deactivated by the terminal, so that the terminal is ensured to flexibly and accurately report the CSI, that is, accurately report the CSI corresponding to BWP.

Fig. 6 provides a terminal 300 for implementing the embodiment of the present invention, as shown in fig. 6, the terminal 300 includes: an obtaining module 301 and a reporting module 302, wherein:

an obtaining module 301, configured to obtain indication information; the indication information is used for indicating the terminal to report the CSI corresponding to the first unit frequency resource; the first unit frequency resource includes: all or part of unit frequency resources activated by the terminal and/or all or part of unit frequency resources deactivated by the terminal; the unit frequency resource includes: BWP or CC.

A reporting module 302, configured to report the CSI to the network device according to the indication information obtained by the obtaining module 301.

Optionally, the indication information is specifically used to indicate the number N of the first unit frequency resources and/or the first unit frequency resources; n is a positive integer greater than or equal to 1.

Optionally, the indication information is specifically used to indicate the number N of the first unit frequency resources; the reporting module 302 is specifically configured to: and reporting the CSI to the network device according to the indication information and the first predetermined rule obtained by the obtaining module 301. Wherein the first predetermined rule comprises at least one of: the first unit frequency resource is a unit frequency resource N before the channel quality ranking, and the first unit frequency resource is a unit frequency resource N before the numbering ranking of the unit frequency resources.

Optionally, the first predetermined rule is configured or predefined by the network device to the terminal.

Optionally, the obtaining module 301 is specifically configured to: and receiving indication information sent to the terminal by the network equipment.

Optionally, the obtaining module 301 is specifically configured to: and decoding the PDCCH acquired by the terminal to acquire the indication information carried in the PDCCH.

Optionally, the indication information is carried on the MAC CE.

Optionally, the obtaining module 301 is specifically configured to: decoding a downlink control channel (PDCCH) acquired by a terminal to acquire indication information; wherein, the indication information is information of a first BWP where the PDCCH is located; the first BWP is a BWP activated by the network device or a BWP in the CC; the reporting module 302 is specifically configured to: and reporting the CSI to the network equipment according to the indication information acquired by the acquisition module and a second predetermined rule.

Wherein, when the first unit frequency resource is BWP, the second predetermined rule includes at least one of the following: the first unit frequency resource is a first BWP, and the first unit frequency resource is a second BWP which has a corresponding relation with the first BWP or a BWP in a BWP group; or, in the case that the first unit frequency resource is CC, the second predetermined rule includes at least one of the following: the first unit frequency resource is a first BWP, and the first unit frequency resource is a CC in a first CC or a CC group corresponding to the first BWP.

Optionally, the second predetermined rule is configured or predefined by the network device to the terminal.

Optionally, the indication information includes at least one of the following: the unit frequency resource group comprises an identifier of a first unit frequency resource, the number N of the first unit frequency resources and a group identifier of the unit frequency resource group; wherein, N is a positive integer greater than or equal to 1, and the unit frequency resource group comprises a first unit frequency resource.

Optionally, when the first unit frequency resource includes at least one unit frequency resource activated by the terminal, the reporting module 302 is specifically configured to: and reporting the CSI corresponding to all the first unit frequency resources to the network device according to the indication information acquired by the acquisition module 301.

In the terminal provided in the embodiment of the present invention, the terminal receives the indication information sent by the network device, so as to report the CSI corresponding to the first unit frequency resource to the network device according to the indication of the indication information, and since the first unit frequency resource includes all or part of the unit frequency resources activated by the terminal and/or all or part of the unit frequency resources deactivated by the terminal, the terminal is ensured to be capable of reporting the CSI flexibly and accurately, that is, reporting the CSI corresponding to BWP accurately and/or accurately.

The terminal device provided in the embodiment of the present invention can implement the process shown in any one of fig. 2 to 5 in the method embodiment, and details are not described here again to avoid repetition.

Fig. 7 is a schematic diagram of a hardware structure of a network device for implementing an embodiment of the present invention, and as shown in fig. 7, the network device 400 includes: a sending module 401 and a receiving module 402, wherein:

a sending module 401, configured to send indication information to a terminal.

The indication information is used for indicating the terminal to report the CSI corresponding to the first unit frequency resource; the indication information is also used for indicating the terminal to report CSI to the network equipment according to the indication information; the first unit frequency resource includes: all or part of unit frequency resources activated by the terminal and/or all or part of unit frequency resources deactivated by the terminal; the unit frequency resource includes: BWP or CC.

A receiving module 402, configured to receive CSI sent by the terminal.

Optionally, the sending module 401 is specifically configured to: sending a downlink control channel PDCCH to a terminal; wherein, the indication information is carried in the PDCCH.

Optionally, the sending module 401 is specifically configured to: according to a second preset rule, a downlink control channel PDCCH is sent to the terminal on the first BWP; wherein, the first BWP is a BWP activated by a network device or a BWP in a CC;

in the case that the first unit frequency resource is BWP, the second predetermined rule includes at least one of the following: the first unit frequency resource is a first BWP, and the first unit frequency resource is a second BWP which has a corresponding relation with the first BWP or a BWP in a BWP group; or, in the case that the first unit frequency resource is CC, the second predetermined rule includes at least one of the following: the first unit frequency resource is a first BWP, and the first unit frequency resource is a CC in a first CC or a CC group corresponding to the first BWP.

Optionally, the indication information is carried on the MAC CE.

In the network device provided by the embodiment of the present invention, the network device sends the indication information to the terminal to indicate the terminal to report the CSI corresponding to the first unit frequency resource to the network device, and the first unit frequency resource includes all or part of the unit frequency resources activated by the terminal and/or all or part of the unit frequency resources deactivated by the terminal, so that the terminal is ensured to flexibly and accurately report the CSI, that is, accurately report the CSI corresponding to BWP.

The terminal provided in the embodiment of the present invention is capable of implementing the process shown in any one of fig. 2 to 5 in the foregoing method embodiment, and details are not described here again to avoid repetition.

Fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention, where the terminal 100 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the configuration of terminal 100 shown in fig. 8 is not intended to be limiting, and terminal 100 may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal 100 includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The processor 110 is configured to obtain the indication information; the indication information is used for indicating the terminal to report the CSI corresponding to the first unit frequency resource; the first unit frequency resource is all or part of unit frequency resources activated by the terminal and/or all or part of unit frequency resources deactivated by the terminal; the unit frequency resource includes: BWP or CC; and the radio frequency unit 101 is configured to report CSI to the network device according to the indication information.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 may be used for receiving and sending signals during a message transmission or call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system.

The terminal 100 provides the user with wireless broadband internet access through the network module 102, such as helping the user send and receive e-mails, browse web pages, and access streaming media.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.

The input unit 104 is used to receive an audio or video signal. The input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics processor 1041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102. The microphone 1042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode.

The terminal 100 also includes at least one sensor 105, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal 100. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. Touch panel 1071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1071 (e.g., operations by a user on or near touch panel 1071 using a finger, stylus, or any suitable object or attachment). The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and receives and executes commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. Specifically, other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 1071 may be overlaid on the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although in fig. 8, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the terminal 100, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the terminal 100, and is not limited herein.

The interface unit 108 is an interface for connecting an external device to the terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 100 or may be used to transmit data between the terminal 100 and the external device.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the terminal 100, connects various parts of the entire terminal 100 using various interfaces and lines, performs various functions of the terminal 100 and processes data by running or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the terminal 100. Processor 110 may include one or more processing units; alternatively, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and optionally, the power supply 111 may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.

In addition, the terminal 100 includes some functional modules that are not shown, and thus, the detailed description thereof is omitted.

Fig. 9 is a schematic diagram of a hardware structure of a network device for implementing an embodiment of the present invention, where the network device 800 includes: a processor 801, a transceiver 802, a memory 803, a user interface 804 and a bus interface.

The transceiver 802 is configured to send indication information to a terminal; the indication information is used for indicating the terminal to report the CSI corresponding to the first unit frequency resource; the indication information is also used for indicating the terminal to report the CSI to the network equipment according to the indication information; the first unit frequency resource includes: all or part of unit frequency resources activated by the terminal and/or all or part of unit frequency resources deactivated by the terminal; the unit frequency resource includes: BWP or CC; the transceiver 802 is further configured to receive the CSI transmitted by the terminal.

In an embodiment of the invention, in FIG. 9, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by the processor 801 and various circuits of memory represented by the memory 803 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 802 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 804 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc. The processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 801 in performing operations.

In addition, the network device 800 further includes some functional modules that are not shown, and are not described herein again.

Optionally, an embodiment of the present invention further provides a terminal device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements the process of the CSI reporting method in the first embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.

Optionally, an embodiment of the present invention further provides a network device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements the process of the CSI reporting method in the foregoing embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements multiple processes of the CSI reporting method shown in the foregoing embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for reporting CSI (channel State information), which is applied to a terminal, comprises the following steps:

acquiring indication information;

the indication information is used for indicating the terminal to report CSI corresponding to a first unit frequency resource;

the first unit frequency resource includes: all or part of unit frequency resources activated by the terminal and/or all or part of unit frequency resources deactivated by the terminal; the unit frequency resource includes: a bandwidth part BWP or a carrier cell CC; the indication information is carried on a media access control entity (MAC CE), or the indication information is carried on a downlink control channel (PDCCH) acquired by the terminal, or the indication information is information of a first BWP in which the PDCCH is located; the first BWP is a BWP activated by a network device or a BWP in a CC; the CSI is all or part of CSI configured for the terminal by the network equipment through RRC messages;

and reporting the CSI to the network equipment according to the indication information.

2. The method according to claim 1, wherein the indication information is specifically used for indicating the number N of the first unit frequency resources and/or the first unit frequency resources; n is a positive integer greater than or equal to 1.

3. The method according to claim 2, wherein the indication information is specifically used for indicating the number N of the first unit frequency resources;

the reporting the CSI to the network device according to the indication information includes:

reporting the CSI to network equipment according to the indication information and a first preset rule;

wherein the first predetermined rule comprises at least one of: the first unit frequency resource is a unit frequency resource N before the channel quality ranking, and the first unit frequency resource is a unit frequency resource N before the numbering ranking of the unit frequency resources.

4. The method according to claim 3, characterized in that the first predetermined rule is configured or predefined by the network device to the terminal.

5. The method of claim 1, wherein the obtaining the indication information comprises:

and receiving indication information sent to the terminal by the network equipment.

6. The method according to any one of claims 1 to 5, wherein the indication information is carried on the PDCCH, and the acquiring the indication information comprises:

and decoding the PDCCH to acquire the indication information carried in the PDCCH.

7. The method according to claim 1, wherein the indication information is information of a first BWP in which the PDCCH is located; the acquiring indication information includes:

decoding the PDCCH to acquire the indication information;

reporting the CSI to network equipment according to the indication information and a second preset rule;

wherein, in the case that the first unit frequency resource is BWP, the second predetermined rule includes at least one of: the first unit frequency resource is the first BWP, and the first unit frequency resource is a second BWP corresponding to the first BWP or a BWP in a BWP group;

or, in the case that the first unit frequency resource is a CC, the second predetermined rule includes at least one of: the first unit frequency resource is the first BWP, and the first unit frequency resource is a CC in a first CC or a CC group corresponding to the first BWP.

8. The method according to claim 7, wherein the second predetermined rule is configured or predefined by the network device to the terminal.

9. The method of claim 1, wherein the indication information comprises at least one of: an identifier of the first unit frequency resource, the number N of the first unit frequency resources, and a group identifier of a unit frequency resource group; wherein N is a positive integer greater than or equal to 1, and the unit-frequency resource group includes the first unit-frequency resource.

10. The method of claim 1, wherein when the first unit frequency resource includes at least one unit frequency resource activated by the terminal, the reporting the CSI to a network device according to the indication information comprises:

and reporting the CSI corresponding to all the first unit frequency resources to the network equipment according to the indication information.

11. A method for reporting CSI (channel State information), which is applied to network equipment, is characterized by comprising the following steps:

sending indication information to a terminal;

the indication information is used for indicating the terminal to report CSI corresponding to a first unit frequency resource; the indication information is also used for indicating the terminal to report the CSI to the network equipment according to the indication information; the first unit frequency resource includes: all or part of unit frequency resources activated by the terminal and/or all or part of unit frequency resources deactivated by the terminal; the unit frequency resource includes: a bandwidth part BWP or a carrier cell CC; the indication information is carried on a media access control entity (MAC CE), or the indication information is carried on a downlink control channel (PDCCH) acquired by the terminal, or the indication information is information of a first BWP in which the PDCCH is located; the first BWP is a BWP in a BWP or CC activated by the network device; the CSI is all or part of CSI configured for the terminal by the network equipment through RRC messages;

and receiving the CSI sent by the terminal.

12. The method according to claim 11, wherein the indication information is specifically used for indicating the number N of the first unit frequency resources and/or the first unit frequency resources; n is a positive integer greater than or equal to 1.

13. The method according to claim 11 or 12, wherein the indication information is carried in the PDCCH; the sending of the indication information to the terminal includes:

and sending the PDCCH to the terminal.

14. The method according to claim 11 or 12, wherein the indication information is information of the first BWP; the sending of the indication information to the terminal includes:

transmitting a PDCCH to the terminal on the first BWP according to a second predetermined rule;

in a case where the first unit frequency resource is BWP, the second predetermined rule includes at least one of: the first unit frequency resource is the first BWP, and the first unit frequency resource is a second BWP corresponding to the first BWP or a BWP in a BWP group;

15. The method according to claim 14, wherein the second predetermined rule is configured or predefined by the network device to the terminal.

16. The method of claim 11, wherein the indication information comprises at least one of: an identifier of the first unit frequency resource, the number N of the first unit frequency resources, and a group identifier of a unit frequency resource group; wherein N is a positive integer greater than or equal to 1, and the unit-frequency resource group includes the first unit-frequency resource.

17. A terminal, comprising:

the acquisition module is used for acquiring the indication information; the indication information is used for indicating the terminal to report CSI corresponding to a first unit frequency resource; the first unit frequency resource includes: all or part of unit frequency resources activated by the terminal and/or all or part of unit frequency resources deactivated by the terminal; the unit frequency resource includes: a bandwidth part BWP or a carrier cell CC; the indication information is carried on a media access control entity (MAC CE), or the indication information is carried on a downlink control channel (PDCCH) acquired by the terminal, or the indication information is information of a first BWP in which the PDCCH is located; the first BWP is a BWP activated by a network device or a BWP in a CC; the CSI is all or part of CSI configured for the terminal by the network equipment through RRC messages;

18. The terminal according to claim 17, wherein the indication information is specifically configured to indicate the number N of the first unit frequency resources and/or the first unit frequency resources; n is a positive integer greater than or equal to 1.

19. The terminal according to claim 18, wherein the indication information is specifically used for indicating the number N of the first unit frequency resources;

the reporting module is specifically configured to: reporting the CSI to network equipment according to the indication information acquired by the acquisition module and a first predetermined rule;

20. The terminal of claim 19, wherein the first predetermined rule is configured or predefined for the terminal by the network device.

21. The terminal of claim 17, wherein the obtaining module is specifically configured to: and receiving indication information sent to the terminal by the network equipment.

22. The terminal according to any of claims 17 to 21, wherein the indication information is carried on the PDCCH; the acquisition module is specifically configured to:

and decoding the PDCCH acquired by the terminal to acquire the indication information carried in the PDCCH.

23. The terminal of claim 17, wherein the indication information is information of a first BWP in which the PDCCH is located; the acquisition module is specifically configured to: decoding the PDCCH acquired by the terminal to acquire indication information;

the reporting module is specifically configured to: reporting the CSI to the network equipment according to the indication information acquired by the acquisition module and a second predetermined rule;

24. The terminal of claim 23, wherein the second predetermined rule is configured or predefined for the terminal by the network device.

25. The terminal according to claim 17, wherein the indication information comprises at least one of: an identifier of the first unit frequency resource, the number N of the first unit frequency resources, and a group identifier of a unit frequency resource group; wherein N is a positive integer greater than or equal to 1, and the unit-frequency resource group includes the first unit-frequency resource.

26. The terminal according to claim 17, wherein when the first unit frequency resource includes at least one unit frequency resource activated by the terminal, the reporting module is specifically configured to: and reporting the CSI corresponding to all the first unit frequency resources to network equipment according to the indication information acquired by the acquisition module.

27. A network device, comprising:

the indication information is used for indicating the terminal to report CSI corresponding to a first unit frequency resource; the indication information is also used for indicating the terminal to report the CSI to the network equipment according to the indication information; the first unit frequency resource includes: all or part of unit frequency resources activated by the terminal and/or all or part of unit frequency resources deactivated by the terminal; the unit frequency resource includes: a bandwidth part BWP or a carrier cell CC; the indication information is carried on a media access control entity (MAC CE), or the indication information is carried on a downlink control channel (PDCCH) acquired by the terminal, or the indication information is information of a first BWP in which the PDCCH is located; the first BWP is a BWP activated by a network device or a BWP in a CC; the CSI is all or part of CSI configured for the terminal by the network equipment through RRC messages;

and the receiving module is used for receiving the CSI sent by the terminal.

28. The network device according to claim 27, wherein the indication information is specifically configured to indicate the number N of the first unit frequency resources and/or the first unit frequency resources; n is a positive integer greater than or equal to 1.

29. The network device of claim 27 or 28, wherein the indication information is carried in the PDCCH; the sending module is specifically configured to: and sending the PDCCH to the terminal.

30. The network device according to claim 27 or 28, wherein the indication information is information of the first BWP; the sending module is specifically configured to: transmitting a PDCCH to the terminal on the first BWP according to a second predetermined rule;

31. The network device of claim 30, wherein the second predetermined rule is configured or predefined for the terminal by the network device.

32. The network device of claim 27, wherein the indication information comprises at least one of: an identifier of the first unit frequency resource, the number N of the first unit frequency resources, and a group identifier of a unit frequency resource group; wherein N is a positive integer greater than or equal to 1, and the unit-frequency resource group includes the first unit-frequency resource.

33. A terminal comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, the computer program, when executed by the processor, implementing the steps of the CSI reporting method according to any of claims 1 to 10.

34. A network device comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the CSI reporting method according to any one of claims 11 to 16.

35. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the CSI reporting method according to any one of claims 1 to 10 or any one of claims 11 to 16.