CN117295102A

CN117295102A - Reference signal receiving and transmitting method, terminal and network side equipment

Info

Publication number: CN117295102A
Application number: CN202210682298.3A
Authority: CN
Inventors: 蒋露; 李�根; 陈晓航
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2023-12-26
Also published as: WO2023241514A1

Abstract

The application discloses a reference signal receiving and transmitting method, a terminal and network side equipment, which belong to the technical field of communication, and the reference signal receiving method in the embodiment of the application comprises the following steps: the terminal receives and measures a first reference signal group in a first target period; the terminal reports the measurement result of the first reference signal group; the first target period is located before a mode switching effective time of the network side device, the network side device is in a first mode before the mode switching effective time, the network side device is in a second mode after the mode switching effective time, and the first reference signal group comprises reference signals configured by the network side device for the second mode. The reference signal receiving method can avoid the problems related to the reference signal existing in the mode switching of the network side equipment.

Description

Reference signal receiving and transmitting method, terminal and network side equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a reference signal receiving and transmitting method, a terminal and network side equipment.

Background

With the continuous iterative updating of the mobile communication system, the energy consumption of the network side equipment is higher and higher. For example, after entering 5G, these factors result in higher energy consumption for the base station than for the 4G network due to the base station employing large-scale array antennas, supporting larger bandwidths, etc.; in addition, the frequency band adopted by the 5G network is high, the coverage area of a single base station is small, the coverage effect of the 4G network is achieved, the deployment scale of the 5G base station is 2-3 times that of the 4G network, and the total energy consumption is further increased. Therefore, research on energy-saving technology of network-side equipment is imperative.

The energy saving technology of the network side equipment has evolved from semi-static shutdown to dynamic shutdown. Wherein, the dynamic turn-off refers to the power saving by dynamically turning off part of the antennas/panels/ports when the network load is low. Compared with semi-static turn-off, dynamic turn-off is millisecond or symbol level, and energy saving effect is better. However, dynamic switching off may also have some negative effects, for example, in a short period of time before and after the power saving mode switch, there may occur problems related to the reference signal, such as a decrease in the reference signal received power (Reference Signal Receiving Power, RSRP), inaccurate tracking of channel state information (Channel State Information, CSI), inaccurate modulation and coding scheme (Modulation and coding scheme, MCS) selection, and the like.

Therefore, it is needed to propose a reference signal adaptation scheme to solve the problem related to the reference signal when the network side device is switched in the operation mode (such as the power saving mode).

Disclosure of Invention

The embodiment of the application provides a reference signal receiving and transmitting method, a terminal and network side equipment, so as to solve the problem that a reported reference signal cannot accurately correspond to a network side equipment mode when the network side equipment working mode is switched.

In a first aspect, there is provided a reference signal receiving method, the method comprising:

the terminal receives and measures a first reference signal group in a first target period;

the terminal reports the measurement result of the first reference signal group;

the first target period is located before a mode switching effective time of the network side device, the network side device is in a first mode before the mode switching effective time, the network side device is in a second mode after the mode switching effective time, and the first reference signal group comprises reference signals configured by the network side device for the second mode.

In a second aspect, there is provided a reference signal receiving apparatus comprising:

A first receiving module for receiving and measuring a first reference signal group in a first target period;

the first reporting module is used for reporting the measurement result of the first reference signal group;

In a third aspect, a reference signal transmission method is provided, the method including:

the network side equipment sends a first reference signal group to the terminal in a first target period;

the network side equipment receives the measurement result of the first reference signal group reported by the terminal;

In a fourth aspect, there is provided a reference signal transmission apparatus including:

a first transmitting module, configured to transmit a first reference signal group to a terminal in a first target period;

the first receiving module is used for receiving the measurement result of the first reference signal group reported by the terminal;

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to receive and measure a first reference signal group in a first target period, and the communication interface is configured to report a measurement result of the first reference signal group.

In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method according to the third aspect.

In an eighth aspect, a network side device is provided, where the network side device includes a processor and a communication interface, where the processor is configured to send a first reference signal group to a terminal in a first target period, and the communication interface is configured to receive a measurement result of the first reference signal group reported by the terminal.

In a ninth aspect, there is provided a communication system comprising: a terminal and a network side device, the terminal being operable to perform the steps of the reference signal receiving method as described in the first aspect, the network side device being operable to perform the steps of the reference signal transmitting method as described in the third aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the third aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the third aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the three methods according to the first aspect.

In the embodiment of the application, the terminal additionally receives and measures the first reference signal group containing the reference signal for the second mode in the first target period before the effective time of mode switching of the network side equipment from the first mode to the second mode, and reports the measurement result of the first reference signal group, so that the terminal can sense the channel state change caused by the mode switching of the network side equipment in advance and report the channel state change to the network side equipment, and therefore the reference signals corresponding to the network side equipment modes before and after the mode switching of the network side equipment can be accurately measured and reported, and the reported reference signal measurement result corresponds to the network side equipment mode accurately.

Drawings

Fig. 1A is a block diagram of a wireless communication system provided in an embodiment of the present application.

Fig. 1B is a schematic diagram of a reference signal reception scheme in the related art.

Fig. 2A is a flowchart of a reference signal receiving method according to an embodiment of the present application.

Fig. 2B is a schematic diagram of a reference signal receiving method according to an embodiment of the present application.

Fig. 3 is another flow chart of a reference signal receiving method according to an embodiment of the present application.

Fig. 4 is another schematic diagram of a reference signal receiving method according to an embodiment of the present application.

Fig. 5 is another flow chart of a reference signal receiving method according to an embodiment of the present application.

Fig. 6 is another flow chart of a reference signal receiving method according to an embodiment of the present application.

Fig. 7A is a schematic diagram of reporting timing of a reference signal set measurement result in a reference signal receiving method according to an embodiment of the present application.

Fig. 7B is a second schematic diagram of reporting time of a reference signal set measurement result in a reference signal receiving method according to an embodiment of the present application.

Fig. 8 is a flowchart of a reference signal transmission method according to an embodiment of the present application.

Fig. 9A is a schematic diagram of an application scenario of a reference signal transmitting and receiving method according to an embodiment of the present application.

Fig. 9B is a flow chart of a communication method in the application scenario shown in fig. 9A.

Fig. 10A is a schematic diagram of another application scenario of a reference signal transmitting and receiving method according to an embodiment of the present application.

Fig. 10B is a flow chart of a communication method in the application scenario shown in fig. 10A.

Fig. 11A is a schematic diagram of another application scenario of a reference signal transmitting and receiving method according to an embodiment of the present application.

Fig. 11B is a flow chart of a communication method in the application scenario shown in fig. 11A.

Fig. 12A is a schematic diagram of another application scenario of a reference signal transmitting and receiving method according to an embodiment of the present application.

Fig. 12B is a flow chart of a communication method in the application scenario shown in fig. 12A.

Fig. 13 is a schematic structural diagram of a reference signal receiving apparatus according to an embodiment of the present application.

Fig. 14 is another schematic structural diagram of a reference signal receiving apparatus according to an embodiment of the present application.

Fig. 15 is another schematic structural diagram of a reference signal receiving apparatus according to an embodiment of the present application.

Fig. 16 is another schematic structural diagram of a reference signal receiving apparatus according to an embodiment of the present application.

Fig. 17 is a schematic structural diagram of a reference signal transmitting apparatus according to an embodiment of the present application.

Fig. 18 is a schematic structural view of a communication device of the present application.

Fig. 19 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present application.

Fig. 20 is a schematic hardware structure of a network device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution,LTE)/LTE evolution (LTE-Advanced, LTE-a) systems may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1A shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiments of the present application, only a base station in an NR system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and charging rules function units (Policy and Charging Rules Function, PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. In the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

Fig. 1B shows a reference signal reception scheme in the related art. In the related art, when the network load is low, the network side device can perform energy saving by dynamically turning off part of the antennas/panels/ports, and in a period of time before the energy saving mode is successfully switched, there are problems of inaccurate tracking of channel state information (Channel State Information, CSI), inaccurate selection of modulation and coding schemes (Modulation and coding scheme, MCS) and the like.

As shown in fig. 1B, when the network side device is in the first mode, the UE measures an RS (Reference signal) in the first mode and reports the measurement result, and the base station determines MCS information of a subsequent physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) according to the Reference signal measurement result fed back by the UE, but when the network side device actually transmits the PDSCH, the network side device may have switched to the second mode, in which case, the channel state related information may have changed, that is, the CSI reported in the first mode before is not accurate enough, so that the MCS at this time may not be suitable for the current mode of the network side device. Therefore, it is needed to propose a reference signal adaptation scheme to solve the problem related to the reference signal when the network side device switches the operation modes.

In order to solve the above-mentioned problems, the embodiments of the present application provide a reference signal receiving method and a reference signal transmitting method, and the reference signal receiving method and the reference signal transmitting method provided by the embodiments of the present application are described in detail below by referring to the drawings and application scenarios thereof.

As shown in fig. 2A, an embodiment of the present application provides a reference signal receiving method, which may include:

step 201, the terminal receives and measures a first reference signal group in a first target period.

The first target period is located before a mode switching effective time of the network side device, the network side device is in a first mode before the mode switching effective time, the network side device is in a second mode after the mode switching effective time, and the first reference signal group comprises reference signals configured by the network side device for the second mode. The first mode and the second mode are used for distinguishing between modes before and after the mode is switched, and do not particularly mean a mode of a certain type.

The mode switching effective time of the network side device refers to a time position when the network side device is switched from one mode to another mode and the other mode is effective. In general, the mode switch validation time is a candidate (candidate) mode switch validation time position determined according to a preset manner.

The mode of the network side device may include, but is not limited to, at least one of the following:

different sleep modes, such as one of micro, macro and deep sleep states;

different energy saving modes;

different power modes;

modes corresponding to different numbers of antennas;

modes corresponding to different numbers of antenna panels;

modes corresponding to different port numbers;

a pattern corresponding to the number of different transmission and reception points (Transmitting Receiving Point, TRP);

the modes corresponding to different beam numbers.

Generally, the first target period is a short period of time before and close to the mode switch effective time of the network side device; or, the first target period is a period of time that is located closer to the mode switching validation time before the mode switching validation time of the network side device. The first target period may or may not include a mode switch validation time. The start time and the end time of the first target period may be indicated by the network side device (e.g., indicated by first indication information below), or may be determined by other manners, and a specific manner of determining the start time and the end time of the first target period will be described in detail below when the first indication information is introduced, which is not described herein for brevity.

As shown in fig. 2B, in one example, the first target period is a period of time before a mode switching effective time at which the network-side device is switched from the first mode to the second mode, and an end time of the first target period is the mode switching effective time.

Optionally, the first reference signal group may further include a reference signal configured by the network side device for the first mode. Because during the first target period, the network side device is about to switch to the second mode, but is actually still in the first mode, it is still necessary to measure and report the reference signal for the first mode for the network side device to reference.

It can be appreciated that, in a short period of time after the mode switch validation time of the network side device, the network side device has been switched to the second mode, and the MCS selection of the PDSCH in the period of time is determined based on the CSI reported before the mode switch validation time, and since the related art only reports the measurement result of the reference signal corresponding to the first mode before the mode switch validation time, the MCS selected in the period of time may not be suitable for the second mode after the switch. An effective way to avoid this problem is to additionally transmit the reference signal corresponding to the switched mode before the effective time of mode switching, that is, in the first target period shown in fig. 2B, not only the reference signal corresponding to the first mode, but also the reference signal corresponding to the second mode is transmitted, so that the terminal can have enough time to measure the reference signal of the second mode in advance in the first target period, and further, the network side device can sense the channel state switched to the second mode in advance, so that an accurate MCS is selected when the PDSCH is transmitted in the second mode just before entering.

It should be noted that the reference signal mentioned in the embodiments of the present application may be any reference signal that can be used for UE channel state information measurement, such as at least one of a channel state information reference signal (Channel State Information-Reference Signals, CSI-RS) and a synchronization signal block (Synchronization Signal Block, SSB).

Step 202, the terminal reports the measurement result of the first reference signal group.

The terminal device may report its measurement result according to the reporting configuration of the first reference signal group.

According to the reference signal receiving method, the terminal additionally receives and measures the first reference signal group containing the reference signal aiming at the second mode in the first target period before the effective time of mode switching of the network side equipment from the first mode to the second mode, and reports the measurement result of the first reference signal group, so that the terminal can sense the channel state change caused by the mode switching of the network side equipment in advance and report the channel state change to the network side equipment, and the problem related to the reference signal in the mode switching of the network side equipment can be avoided.

Optionally, as shown in fig. 3, an embodiment of the present application provides a reference signal receiving method, before the step 201, may further include:

Step 203, the terminal receives and measures a second reference signal group in a second target period.

The second target period is a period before the first target period, the second reference signal group is configured by the network side device for the first mode, and the network side device is in the first mode in the second target period.

As shown in fig. 4, the second target period is located before the first target period, and the second target period is adjacent to the second target period, in which the network-side device is in the first mode.

Optionally, the terminal may report the measurement result of the second reference signal group according to the reporting configuration of the second reference signal group.

It can be understood that, in the second target period, the network side device is in the first mode and is further far from being switched to the second mode, and the channel state between the UE and the network side device is still the channel state in the first mode, so that the UE can normally receive, measure and report the reference signal group for the first mode according to the configuration of the network side device.

Optionally, an embodiment of the present application provides a reference signal receiving method, before the step 201, the method may further include: the terminal receives configuration information of the first reference signal group sent by network side equipment; and the terminal receives the configuration information of the second reference signal group sent by the network side equipment.

The configuration information of the first reference signal group and the configuration information of the second reference signal group may be sent by the network side device through radio resource control (Radio Resource Control, RRC) signaling.

In one example, the configuration information of the reference signal group (e.g., the first reference signal group or the second reference signal group) may include, but is not limited to, at least one of:

basic configuration information of the reference signal group;

a pattern of the reference signal group;

a mode of the network side device associated with the reference signal group;

the number of ports or transceiving units (Transmission Receive unit, TXRU) of the network side device associated with the reference signal group;

the number of antennas of the network side device associated with the reference signal group;

the number of antenna panels of the network side device associated with the reference signal group;

a port identification of the network side device associated with the reference signal group;

an antenna panel identification of the network side device associated with the reference signal group;

the mode switching effective time of the network side equipment associated with the reference signal group.

Wherein the basic configuration information of the reference signal group may include, but is not limited to, at least one of:

Information related to a time domain resource allocation of the reference signal group;

information related to the frequency domain resource allocation of the reference signal group;

port configuration information of the reference signal group;

reporting configuration information of the measurement result of the reference signal group.

It should be noted that the number of reference signals in the first reference signal group may be one or more, and similarly, the number of reference signals in the second reference signal group may be one or more.

It should be further noted that, although only the configuration of the first reference signal group and the second reference signal group is mentioned above, this is not to say that the network side device configures the terminal with only these two sets of reference signal groups, in fact, the network side device may configure the terminal with any number of sets of reference signal groups, where different reference signal groups may be related to different modes of the network side device, and at the time of mode switching, switching of two sets of reference signal groups may be involved.

Optionally, an embodiment of the present application provides a reference signal receiving method, before the step 201, the method may further include: the terminal receives activation indication information (hereinafter, first indication information) sent by the network side device, so as to activate the configuration of the first reference signal and the second reference signal group. In one example, the activation indication information may include, but is not limited to, one of the following:

Radio resource control signaling (RRC);

a medium access control unit (MAC Control Element, MAC CE);

broadcast signal (Broadcast signal);

specific downlink control information (Dedicated Downlink Control Information, dedicated DCI);

group common downlink control information (group common Downlink Control Information, group common DCI).

Optionally, as shown in fig. 5, an embodiment of the present application provides a reference signal receiving method, before the step 201, may further include:

step 204, the terminal receives the first indication information sent by the network side device.

The first indication information is used for indicating the first target period, and/or the first indication information is used for activating the configuration of the first reference signal group.

Alternatively, as shown in fig. 4, the terminal may receive the first indication information sent by the network side device in the second target period.

In one example, the first indication information may include, but is not limited to, one of the following:

radio resource control signaling (RRC);

a medium access control unit (MAC Control Element, MAC CE);

broadcast signal (Broadcast signal);

As an example, when the first indication information is used to indicate the first target period, the first indication information may include, but is not limited to, at least one of:

the network side equipment generates mode switching from the first mode to the second mode;

the mode switching of the network side equipment takes effect at the moment;

after the mode switching of the network side equipment takes effect, the duration of the second mode of the network side equipment;

a Timer (Timer) for the first target period;

information related to at least one of a start time and an end time of the first target period.

Several ways of determining the first target period based on the first indication information are described below.

Mode one

Before the step 201, a reference signal receiving method provided in an embodiment of the present application may further include: the terminal determines the time at which X time units are located after the receiving time of the first indication information as the starting time of the first target period, and determines the time at which Y time units are located after the receiving time of the first indication information as the ending time of the first target period, wherein X and Y are integers greater than 0 and X is less than Y.

Wherein the X and Y may be determined by, but are not limited to, at least one of the following:

the first indication information indicates;

protocol conventions;

is determined based on the channel state information (Channel State Information, CSI) processing time.

In general, CSI processing time is related to subcarrier spacing (Subcarrier Spacing, SCS).

Mode two

Before the step 201, a reference signal receiving method provided in an embodiment of the present application may further include: the terminal determines the time at which Z time units are located before the mode switching effective time as the starting time of the first target period, wherein Z is an integer greater than 0; the terminal also determines the time when the configuration information of a third reference signal group is received as the ending time of the first target period, wherein the third reference signal group is a reference signal adopted by the terminal equipment after the first target period is ended.

Wherein Z may be determined by, but is not limited to, at least one of the following:

the first indication information indicates;

protocol conventions;

and determining according to the CSI processing time.

Likewise, CSI processing time is related to subcarrier spacing (Subcarrier Spacing, SCS).

Mode three

The first indication information comprises a Timer (Timer) for counting the time length of the first target period, and the Timer is used for counting the time length of the first target period, and the Timer overtime represents the end of the first target period.

Optionally, before the step 201, a reference signal receiving method provided in an embodiment of the present application may further include: the terminal starts the timer at the receiving moment of the first indication information; or the terminal starts the timer at the moment of T time units after the receiving moment of the first indication information, wherein T is an integer greater than 0.

Wherein T may be determined by, but is not limited to, at least one of the following:

the first indication information indicates;

protocol conventions.

As another example, when the first indication information is used to activate the configuration of the first reference signal group, the first indication information may include, but is not limited to, at least one of:

an ID of a configuration of the first reference signal group;

a bitmap (bitmap) containing a configuration of the first reference signal group.

In a specific implementation, the first indication information may be, but is not limited to, one of the following:

radio resource control signaling (RRC);

A medium access control unit (MAC Control Element, MAC CE);

broadcast signal (Broadcast signal);

Based on the embodiment shown in fig. 5, the step 201 may specifically include: and the terminal receives and measures the first reference signal group according to the configuration of the first reference signal group and the first indication information in the first target period.

It will be appreciated that in the embodiment shown in fig. 5, the terminal device may determine the first target period and/or activate the configuration of the first reference signal group by receiving the first indication information, thereby receiving and measuring the first reference signal group in the first target period.

Optionally, as shown in fig. 6, before the step 201 (i.e. before the time when the mode switch takes effect), after the step 204, a reference signal receiving method provided in an embodiment of the present application may further include:

step 205, the terminal receives the second indication information sent by the network side device.

The second indication information is used for indicating at least one of the ending time of the first target period and the configuration of a third reference signal group, wherein the third reference signal group is a reference signal group adopted by the terminal equipment after the ending of the first target period, such as a reference signal group configured for a second mode.

Alternatively, as shown in fig. 4, the terminal may receive the second indication information sent by the network side device in the first target period.

The content specifically indicated by the first indication information and the second indication information may include the following three cases:

(1) The first indication information is used for indicating the starting time of the first target period, and the second indication information is used for indicating the ending time of the first target period and the configuration of the third reference signal group.

(2) The first indication information is used for indicating the starting time and the ending time of the first target period, and the second indication information is used for indicating the configuration of the third reference signal group.

(3) Exception to no second instruction information is required: the first indication information is used for indicating the starting time and the ending time of the first target period, and the network side equipment is switched from the first mode to the second mode and then from the second mode to the first mode. Alternatively, the second indication information is received when a preset condition is satisfied, wherein the preset condition includes at least one of:

the first indication information does not indicate the end time of the first target period;

and the network side equipment is switched to a third mode after the second mode is finished, and the third reference signal group corresponds to the third mode.

In addition, optionally, as shown in fig. 7A and fig. 7B, in step 202, the terminal may report the measurement result of the first reference signal group at least in the following two ways. In fig. 7A and 7B, the diagonal-line filling portion indicates a first target period, in which the network side device transmits both the reference signal (e.g., CSI-RS) set corresponding to the first mode and the reference signal (e.g., CSI-RS) set corresponding to the second mode, so that the terminal measures the reference signal (e.g., CSI-RS) set of the second mode in advance before the mode of the network side device is switched.

Further, as shown in fig. 7A, the terminal may report the measurement result of the first reference signal group in the first target period. Or, as shown in fig. 7B, the terminal may report the measurement result of the first reference signal group within a preset time period after the end of the first target period, and more specifically, as shown in fig. 7B, when the mode switching effective time is the end time of the first target period, the terminal may report the measurement result of the first reference signal group within a preset time period after the mode switching effective time.

The preset duration may be determined by at least one of the following manners: protocol conventions, network side device indications, etc.

It should be noted that, the terminal may select the reporting manner of the measurement result (such as CSI) shown in fig. 7A as much as possible, that is, report the measurement result in the first target period as much as possible, where the reporting manner may be configured in advance by the network side device. If the report is performed after the first target period is finished (report mode shown in fig. 7B), the report at a time position close to the effective time of the mode switching may be selected as much as possible.

According to the reference signal receiving method, the terminal additionally receives and measures the first reference signal group containing the reference signal for the mode before switching in the first target period before the mode switching effective moment of the network side equipment from one mode to the other mode, and reports the measurement result of the first reference signal group, so that the terminal can sense the channel state change caused by the mode switching of the network side equipment in advance and report the channel state change to the network side equipment, and the problem related to the reference signal in the mode switching of the network side equipment can be avoided.

Corresponding to the above reference signal receiving method, an embodiment of the present application further provides a reference signal transmitting method, which is described below.

It should be noted that, since the reference signal transmitting method and the reference signal receiving method provided in the embodiments of the present application correspond to each other, the following description of the reference signal transmitting method is brief.

As shown in fig. 8, a reference signal transmitting method provided in an embodiment of the present application may include:

step 801, the network side device sends a first reference signal group to the terminal in a first target period.

different sleep modes, such as one of micro, macro and deep sleep states;

different energy saving modes;

different power modes;

modes corresponding to different numbers of antennas;

modes corresponding to different numbers of antenna panels;

Modes corresponding to different port numbers;

the modes corresponding to different beam numbers.

Step 802, the network side device receives the measurement result of the first reference signal group reported by the terminal.

According to the reference signal sending method, the network side device additionally sends the first reference signal group containing the reference signal for the second mode in the first target period before the effective time of mode switching from the first mode to the second mode, and receives the report of the measurement result of the first reference signal group, so that the terminal can sense the channel state change caused by the mode switching of the network side device in advance and report the channel state change to the network side device, and the problem related to the reference signal in the mode switching of the network side device can be avoided.

Optionally, a reference signal sending method provided in an embodiment of the present application may further include: and the network side equipment transmits a second reference signal group to the terminal in a second target period.

Optionally, the network side device may further receive a measurement result of the second reference signal group reported by the terminal.

Wherein the second target period is a period before the first target period, and the second reference signal group is configured by the network side device for the first mode.

Optionally, a reference signal sending method provided in an embodiment of the present application may further include, before the step 801, the steps of: the network side equipment sends configuration information of the first reference signal group to the terminal; and the network side equipment sends configuration information of the second reference signal group to the terminal.

The configuration information of the first reference signal group and the configuration information of the second reference signal group may be sent by the network side device through RRC signaling.

basic configuration information of the reference signal group;

a pattern of the reference signal group;

a mode of the network side device associated with the reference signal group;

port configuration information of the reference signal group;

Optionally, the first reference signal group may further include a reference signal configured by the network side device for the first mode. Because during the second target period, the network side device is about to switch to the second mode, but is actually still in the first mode, it is still necessary to measure and report the reference signal for the first mode for the network side device to reference.

Optionally, a reference signal sending method provided in an embodiment of the present application may further include, before the step 801, the steps of: the network side equipment sends first indication information to the terminal; the first indication information is used for indicating the first target period, and/or the first indication information is used for activating the configuration of the first reference signal group.

the mode switching of the network side equipment takes effect at the moment;

The timer of the first target period counts time length;

In a more specific embodiment, the first indication information includes X and Y, where X and Y are integers greater than 0 and X is less than Y; correspondingly, the terminal is configured to determine, as a start time of the first target period, a time at which X time units are located after the reception time of the first indication information, and determine, as an end time of the first target period, a time at which Y time units are located after the reception time of the first indication information.

In a second more specific embodiment, the first indication information includes Z, where Z is an integer greater than 0; correspondingly, the terminal is configured to determine, as a start time of the first target period, a time at which Z time units are located before the mode switching effective time, and determine, as an end time of the first target period, a time at which configuration information of a third reference signal group is received, where the third reference signal group is a reference signal adopted by the terminal after the end of the first target period.

In a third more specific embodiment, the first indication information includes a timer duration of the first target period, the timer is used for timing the first target period, and the timer timeout represents the end of the first target period; correspondingly, the terminal is used for starting the timer at the moment of T time units after the moment of receiving the first indication information; or the terminal is used for starting the timer at the moment of T time units after the receiving moment of the first indication information, wherein T is an integer greater than 0.

Wherein T may be determined by at least one of the following:

the first indication information indicates;

protocol conventions.

As an example, when the first indication information is used to activate the configuration of the first reference signal group, the first indication information may include, but is not limited to, at least one of:

an ID of a configuration of the first reference signal group;

a bitmap comprising a configuration of the first reference signal group.

radio resource control signaling (RRC);

A medium access control unit (MAC Control Element, MAC CE);

broadcast signal (Broadcast signal);

Optionally, before the step 801 (before the mode switch takes effect), a reference signal sending method provided in an embodiment of the present application may further include: and the network side equipment sends second indication information to the terminal.

The second indication information is used for indicating at least one of the ending time of the first target period and the configuration of a third reference signal group, wherein the third reference signal group is the reference signal group adopted by the terminal equipment after the first target period is ended.

Alternatively, as shown in fig. 4, the network side device may send the second indication information to the terminal in the first target period.

(3) Exception to no need to send the second indication information: the first indication information is used for indicating the starting time and the ending time of the first target period, and the network side equipment is switched from the first mode to the second mode and then from the second mode to the first mode. Or, the second indication information is sent when a preset condition is met, wherein the preset condition includes at least one of the following:

Further, optionally, the step 802 may include: the network side equipment receives a measurement result of the first reference signal group, which is reported by the terminal in the first target period; or the network side equipment receives the measurement result of the first reference signal group, which is reported by the terminal in a preset time period after the end of the first target period.

The application of a reference signal sending method and a reference signal receiving method provided in the embodiments of the present application is described below by four specific embodiments, where different embodiments correspond to different application scenarios. It should be noted that these four specific embodiments are merely examples of four application scenarios, and in practical applications, the application scenarios of a reference signal sending method and a reference signal receiving method provided in the embodiments of the present application are not limited to these four application scenarios.

Example 1

Fig. 9A shows an application scenario schematic diagram of a reference signal transmitting and receiving method provided in an embodiment of the present application. Fig. 9B shows a flow chart of a communication method (referred to as a communication method because reference signal transmission and reference signal reception are involved, and the following is the same) in the application scenario shown in fig. 9A. An embodiment one will be described with reference to fig. 9A and 9B.

As shown in fig. 9A, before the time of the mode switch validation (the time position where the dotted line in fig. 9A is located), the network side device is in the first mode, and after the time of the mode switch validation, the network side device is in the second mode; in a period of time before the effective time of mode switching (the period of time represented by the diagonal line filling part in fig. 9A corresponds to the first target period), the network side device transmits the CSI-RS group for the first mode to the terminal and transmits the CSI-RS group for the second mode to the terminal; in a period of time close to the effective time of mode switching after the effective time of mode switching, the scheduling of the PDSCH is still related to a Reference Signal (RS) corresponding to a first mode, a transmission configuration indication (Transmission Configuration Indicator, TCI) or MCS which is measured and reported before and related to the first mode can still be used, and meanwhile, a CSI-RS group measurement result corresponding to a second mode can be referred; in a period relatively far from the effective time of mode switching after the effective time of mode switching, the scheduling of the PDSCH may be related to only the reference signal corresponding to the second mode, at this time, there is no related problem (such as ambience) caused by the reference signal, and the terminal only needs to measure and report the CSI-RS group corresponding to the second mode.

As shown in fig. 9B, in the application scenario shown in fig. 9A, the present application provides a communication method, which may include:

in step 901, the network side device sends configuration information of multiple sets of CSI-RS groups to the terminal through RRC signaling, where different CSI-RS groups are related to different antenna port modes.

For example, CSI-RS group 1 is associated with a mode with a network side port number of 64, CSI-RS group 2 is associated with a mode with a network side port number of 32, and CSI-RS group 3 is associated with a mode with a network side port number of 16; assume that a network side device configures a CSI-RS configuration 1 and a CSI-RS configuration 2 to a terminal, wherein the CSI-RS configuration 1 is for a first mode, the CSI-RS configuration 1 includes a CSI-RS group 1, the CSI-RS configuration 2 is for a first mode and a second mode, and the CSI-RS configuration 2 includes a CSI-RS group 1 and a CSI-RS group 2.

In step 902, in the first mode, and in the case that the mode switching does not occur, the network side device sends a corresponding CSI-RS group based on the CSI-RS configuration 1 for the first mode, and the terminal performs measurement at a corresponding position.

As described in the previous step, CSI-RS configuration 1 includes CSI-RS group 1, and the corresponding number of network ports is 64.

In step 903, the network side device is about to switch modes, and before the effective time of the mode switch, the network side device sends first indication information to the terminal to activate CSI-RS configuration 2 for the first mode and the second mode, and indicates to the terminal the starting time of the first target period, the ending time of the first target period, and the measurement and reporting configuration of the CSI-RS group in the first target period.

The network side device is about to enter a power saving state (second mode), and in the second mode, part of ports are closed. Before the effective moment of the mode switching, the network side device activates the CSI-RS configuration 2 through the first indication information, the effective position of the CSI-RS configuration 2 is M time units (i.e. the starting moment of the first target period) after the first indication information, the end position of the CSI-RS configuration 2 is N time units (i.e. the end moment of the first target period, the first target period is shown in the diagonal filling part of fig. 9A) after the first indication information, M and N are integers greater than zero, and M is less than N, wherein M can be indicated by the first indication information, as can be seen from fig. 9A, the end position of the CSI-RS configuration 2, i.e. the effective moment of the mode switching, can be indicated by the network side device (e.g. the first indication information), and the effective moment of the mode switching can be indicated by the network side device, or by the protocol convention, so N can be indicated by the network side device and determined by at least one of the protocol convention.

Step 904, the terminal receives and measures the CSI-RS group configured by the CSI-RS configuration 2 in the first target period according to the first indication information, and reports the measurement result according to the reporting configuration.

As described above, the CSI-RS configuration 2 includes two sets of CSI-RS groups, one set is the CSI-RS group 1 for the network side port number of 64, and the other set is the CSI-RS group 2 for the network side port number of 32, so the UE needs to measure the two sets of CSI-RS groups in the first target period.

Example two

Fig. 10A shows another application scenario schematic diagram of a reference signal transmitting and receiving method provided in an embodiment of the present application. Fig. 10B is a schematic flow chart of a communication method in the application scenario shown in fig. 10A. The second embodiment will be described with reference to fig. 10A and 10B.

In the application scenario shown in fig. 10A, during a long period of time when the network side device is under a medium-low load, the network side device may keep in a power saving state (first mode) all the time, and if a burst service or a load (traffic load) is greater than a certain threshold value, the relevant reference signal in a non-power saving state (second mode) is activated to switch to the non-power saving state.

As shown in fig. 10A, before the time of the mode switch validation (the time position where the dotted line is located in fig. 10A), the network side device is in the first mode, and after the time of the mode switch validation, the network side device is in the second mode; during a period of time before the effective time of mode switching and a period of time for which the second mode is sustained (a period of time represented by a diagonal line filled portion in fig. 10A), the transmission and reception of the reference signal corresponding to the first mode are unchanged, and the reference signal corresponding to the second mode is additionally activated; during this period (the period represented by the diagonal line filled portion in fig. 10A), scheduling of PDSCH is related to measurement report results of Reference Signals (RSs) corresponding to the first mode and the second mode; after the period of time (the period of time represented by the diagonal line filled portion in fig. 10A) is ended, the reference signal corresponding to the second mode is deactivated, the network side device switches back to the first mode, and the terminal receives and measures the reference signal corresponding to the first mode.

As shown in fig. 10B, in the application scenario shown in fig. 10A, the present application provides a communication method, which may include:

in step 1001, the network side device sends two sets of CSI-RS configuration information to the terminal through RRC signaling, where one set of CSI-RS configuration is for a first mode, and the other set of CSI-RS configuration is for a second mode, where the first mode is an energy-saving mode, and the second mode is a non-energy-saving mode, and when the network side device is in a medium-low load, the network side device is always in the first mode.

In step 1002, when the load of the network side device is greater than a preset threshold, the network side device predicts that the CSI-RS corresponding to the second mode is additionally transmitted in a certain period of time, and then the network side device activates the CSI-RS configuration corresponding to the second mode through the MAC CE for a period of time before the time when the second mode takes effect.

In step 1003, the network side device sends the CSI-RS of the first mode and the CSI-RS of the second mode to the terminal before the second mode effective period ends.

For example, the network side device transmits CSI-RS of the first mode and CSI-RS of the second mode to the terminal in a period represented by a diagonal line filled portion located after the mode switching effective time in fig. 10A.

Step 1004, before the second mode effective period ends, the terminal measures and reports the CSI-RS of the first mode and the CSI-RS of the second mode.

For example, the terminal measures and reports the CSI-RS corresponding to the first mode and the CSI-RS corresponding to the second mode configured before in the period represented by the diagonal line filling portion located after the mode switching effective time in fig. 10A.

In step 1005, at the end time of the second mode effective period, the network side device deactivates the CSI-RS configuration of the second mode through DCI, and activates the CSI-RS configuration of the first mode.

Example III

Fig. 11A is a schematic diagram of another application scenario of a reference signal sending and receiving method provided in an embodiment of the present application. Fig. 11B is a schematic flow chart of a communication method in the application scenario shown in fig. 11A. The second embodiment will be described with reference to fig. 11A and 11B.

As shown in fig. 11A, before the time of the mode switch validation (the time position where the dotted line in fig. 11A is located), the network side device is in the first mode, and after the time of the mode switch validation, the network side device is in the second mode; and the terminal receives the mode switching instruction for a period of time before the mode switching effective moment.

As shown in fig. 11B, in the application scenario shown in fig. 11A, the present application provides a communication method, which may include:

In step 1101, the network side device sends configuration information of multiple sets of CSI-RS groups to the terminal through RRC signaling, where different CSI-RS groups are related to different antenna port modes.

For example, CSI-RS group 1 is associated with a mode with a network side port number of 64, and CSI-RS group 2 is associated with a mode with a network side port number of 32; CSI-RS configuration 1 contains CSI-RS group 1, and CSI-RS configuration 2 contains CSI-RS group 1 and CSI-RS group 2.

In step 1102, when the network side device is in the first mode and does not send a mode switching instruction, the network side device sends a corresponding CSI-RS group based on the CSI-RS configuration 1 for the first mode, and the terminal measures at a corresponding position.

In step 1103, the network side device is about to switch modes, and before the effective time of the mode switch, the network side device sends mode switch indication information to the terminal, so as to indicate the start time of the first target period, the end time of the first target period and the effective time of the mode switch to the terminal, and activate the reference signal configuration of the first target period.

In one example, the network side device informs the terminal of a plurality of candidate mode switching effective moments (time positions) in advance, and when the terminal receives the mode switching instruction information, the candidate mode switching effective moment closest to the receiving moment of the mode switching instruction information is selected as the current mode switching effective moment.

In addition, after receiving the mode switching instruction information, the terminal may use the receiving time of the mode switching instruction information as the starting time of the first target period, and use the effective time of the mode switching as the ending time of the first target period, as represented by the diagonal line filling part in fig. 11A. Meanwhile, the mode switch indication information also activates the reference signal configuration (e.g., CSI-RS configuration 2 described above) of the first target period.

It will be apparent that at least the following three purposes are achieved by the above-described mode switch indication information:

(1) Informing the terminal of the effective time of mode switching of the network side equipment;

(2) Informing a terminal of the starting time and the ending time of a first target period;

(3) The reference signal configuration of the first target period is activated.

In step 1104, the network side device sends the CSI-RS group corresponding to the reference signal configuration of the first target period to the terminal in the first target period.

For example, the network side device transmits the CSI-RS group corresponding to the CSI-RS configuration 2, that is, both the CSI-RS group 1 and the CSI-RS group 2, to the terminal in the period represented by the diagonal line filling part in fig. 11A.

In step 1105, the terminal measures the corresponding CSI-RS group according to the activated reference signal configuration and reports the measurement result according to the reporting configuration in the first target period.

For example, in the first target period, the terminal measures the CSI-RS group 1 and the CSI-RS group 2 according to the activated CSI-RS configuration 2 and reports the measurement result according to the reporting configuration.

Example IV

Fig. 12A shows another application scenario schematic diagram of a reference signal transmitting and receiving method provided in an embodiment of the present application. Fig. 12B is a flow chart illustrating a communication method in the application scenario shown in fig. 12A. The second embodiment will be described with reference to fig. 12A and 12B.

As shown in fig. 12A, in this application scenario, two mode switching is involved, where the network side device switches from the first mode to the second mode first, and after the second mode continues for a period of time, switches from the second mode to the first mode, where the number of antenna ports corresponding to different modes is different.

For convenience of distinction, in the application scenario shown in fig. 12A, the effective time of the mode switch corresponding to the first mode switch is referred to as a first mode switch time, the effective time of the mode switch corresponding to the second mode switch is referred to as a second mode switch time, and a first target period (a period in which the UE receives the first reference signal group, the first reference signal group at this time is a reference signal group corresponding to configuration 2) and a second target period (a period in which the UE receives the second reference signal group, the second reference signal group at this time is a reference signal group corresponding to configuration 1) corresponding to the first mode switch are referred to as a first target period and a second target period, respectively, and a first target period (a period in which the UE receives the first reference signal group, the first reference signal group at this time is a reference signal group corresponding to configuration 2) corresponding to the second mode switch and a second target period (a period in which the UE receives the second reference signal group, the second reference signal group at this time is a reference signal group corresponding to configuration 3) corresponding to the configuration 3 are referred to as a third target period and a fourth target period, respectively.

As shown in fig. 12B, in the application scenario shown in fig. 12A, the present application provides a communication method, which may include:

step 1201, the network side device sends configuration information of multiple sets of CSI-RS groups to the terminal through RRC signaling, where different CSI-RS groups are related to different antenna port modes.

For example, CSI-RS resource set 1 (CSI-RS resource set 1) is a CSI-RS with an antenna port number of 32, and CSI-RS resource set 2 (CSI-RS resource set 2) is a CSI-RS with an antenna port number of 64. Configuration 1 (CSI-Resource configuration 1) contains CSI-RS Resource set 1, configuration 2 (CSI-Resource configuration 2) contains CSI-RS Resource set 1 (CSI-RS Resource set 1) and CSI-RS Resource set 2 (CSI-RS Resource set 2), and configuration 3 (CSI-Resource configuration 3) contains CSI-RS Resource set 2 (CSI-RS Resource set 2).

In step 1202, when the network side device is in the first mode and no mode switching occurs, the network side device sends a corresponding CSI-RS resource set based on configuration 1 for the first mode, and the terminal performs measurement at a corresponding position.

For example, in the case where the network side device is in the first mode and no mode switching occurs, the network side device transmits CSI-RS resource set 1 based on configuration 1 for the first mode.

In step 1203, the network side device is about to switch the first mode, and in the second target period, the network side device sends first indication information to the terminal to indicate the start time and the end time of the first target period to the terminal, and indicates the configuration in the first target period to the terminal as configuration 2.

In step 1204, the terminal measures the CSI-RS resource set 1 and the CSI-RS resource set 2 according to the configuration 2 in the first target period, and receives second indication information from the network side device in the first target period, where the second indication information is used to indicate the configuration adopted in the fourth target period to be the configuration 3.

In step 1205, the terminal measures CSI-RS resource set 2 according to configuration 3 in the fourth target period, and receives third indication information in the fourth target period, where the third indication information is used to indicate configuration 2 adopted by the third target period.

In step 1206, the terminal measures the CSI-RS resource set 1 and the CSI-RS resource set 2 according to the configuration 2 in the third target period, and receives fourth indication information from the network side device in the third target period, where the fourth indication information is used for indicating the configuration adopted in the target period as the configuration 1.

And similarly, when the terminal receives the reference signal group corresponding to the switched mode in the first target period before the effective time of the mode switching, the terminal also receives the indication information of the configuration adopted in the next period from the network side equipment.

According to the reference signal receiving method provided by the embodiment of the application, the execution body can be a reference signal receiving device. In the embodiment of the present application, a reference signal receiving device executes a reference signal receiving method as an example, and the reference signal receiving device provided in the embodiment of the present application is described.

Similarly, in the reference signal transmitting method provided in the embodiment of the present application, the execution body may be a reference signal transmitting apparatus. In the embodiment of the present application, a reference signal transmitting apparatus is described by taking an example in which the reference signal transmitting apparatus executes a reference signal transmitting method.

A reference signal receiving apparatus and a reference signal transmitting apparatus provided in the embodiments of the present application are described below with reference to the accompanying drawings. Since a reference signal receiving apparatus provided in the embodiment of the present application corresponds to a reference signal receiving method provided in the embodiment of the present application, and a reference signal transmitting apparatus provided in the embodiment of the present application corresponds to a reference signal transmitting method provided in the embodiment of the present application, a description of a reference signal receiving apparatus and a reference signal transmitting apparatus provided in the embodiment of the present application is brief, and reference is made to the description of the foregoing method embodiment section for details.

As shown in fig. 13, an embodiment of the present application provides a reference signal receiving apparatus 1300, where the apparatus 1300 may include a first receiving module 1301 and a first reporting module 1302.

A first receiving module 1301 is configured to receive and measure a first reference signal group during a first target period.

A first reporting module 1302, configured to report a measurement result of the first reference signal group.

According to the reference signal receiving device, the first reference signal group containing the reference signal for the second mode is additionally received and measured in the first target period before the effective time of mode switching from the first mode to the second mode of the network side equipment, and the measurement result of the first reference signal group is reported, so that the terminal can sense the channel state change caused by the mode switching of the network side equipment in advance and report the channel state change to the network side equipment, and the problem related to the reference signal in the mode switching of the network side equipment can be avoided.

Optionally, as shown in fig. 14, an embodiment of the present application provides a reference signal receiving apparatus 1300, which may further include: the second receiving module 1303 is configured to receive and measure a second reference signal group during a second target period.

Optionally, the apparatus 1300 may further report the measurement result of the second reference signal group according to the reporting configuration of the second reference signal group.

Optionally, an embodiment of the present application provides a reference signal receiving apparatus 1300, which may further include: before measuring a first reference signal group, receiving configuration information of the first reference signal group sent by network side equipment; and receiving configuration information of the second reference signal group sent by the network side equipment.

Optionally, as shown in fig. 15, an embodiment of the present application provides a reference signal receiving apparatus 1300, which may further include a third receiving module 1304, configured to receive, before the first target period measures the first reference signal group, first indication information sent by the network side device.

Optionally, the third receiving module 1304 may receive the first indication information sent by the network side device during the second target period.

radio resource control signaling (RRC);

a medium access control unit (MAC Control Element, MAC CE);

broadcast signal (Broadcast signal);

the mode switching of the network side equipment takes effect at the moment;

a Timer (Timer) for the first target period;

Several ways in which the apparatus 1300 determines the first target period based on the first indication information are described below.

Mode one

An embodiment of the present application provides a reference signal receiving apparatus 1300, which may further include: a first determining module, configured to determine, before a first target period receives and measures a first reference signal group, a time at which X time units are located after a receiving time of the first indication information as a start time of the first target period, and determine, as an end time of the first target period, a time at which Y time units are located after the receiving time of the first indication information, where X and Y are integers greater than 0 and X is less than Y.

Mode two

An embodiment of the present application provides a reference signal receiving apparatus 1300, which may further include: the second determining module is used for determining the time at which Z time units are located before the effective time of the mode switching as the starting time of the first target period before the first reference signal group is received and measured in the first target period, wherein Z is an integer greater than 0; the second determining module is further configured to determine a time when configuration information of a third reference signal group is received as an end time of the first target period, where the third reference signal group is a reference signal adopted by the terminal device after the end of the first target period.

Mode three

An embodiment of the present application provides a reference signal receiving apparatus 1300, which may further include: a third determining module, configured to start the timer at a time of receiving the first indication information before the first reference signal group is received and measured in the first target period; or starting the timer at the time of T time units after the receiving time of the first indication information, wherein T is an integer greater than 0.

an ID of a configuration of the first reference signal group;

radio resource control signaling (RRC);

a medium access control unit (MAC Control Element, MAC CE);

broadcast signal (Broadcast signal);

On the basis of the embodiment shown in fig. 15, the first receiving module 1301 may specifically be used to: and the terminal receives and measures the first reference signal group according to the configuration of the first reference signal group and the first indication information in the first target period.

Optionally, as shown in fig. 16, a reference signal receiving apparatus 1300 provided in an embodiment of the present application may further include: a fourth receiving module 1305, configured to receive, after receiving the first indication information, the second indication information sent by the network side device before receiving and measuring the first reference signal group.

As shown in fig. 17, a reference signal transmitting apparatus 1700 provided in an embodiment of the present application may include: a first transmit module 1801 and a first receive module 1802.

A first transmitting module 1801 is configured to transmit, to a terminal, a first reference signal group in a first target period.

A first receiving module 1802, configured to receive a measurement result of the first reference signal group reported by the terminal.

According to the reference signal sending device, the network side equipment additionally sends the first reference signal group containing the reference signal for the second mode in the first target period before the effective time of mode switching from the first mode to the second mode, and receives the report of the measurement result of the first reference signal group, so that the terminal can sense the channel state change caused by the mode switching of the network side equipment in advance and report the channel state change to the network side equipment, and the problem related to the reference signal in the mode switching of the network side equipment can be avoided.

Optionally, a reference signal transmitting apparatus 1700 provided in an embodiment of the present application may further include: and the second sending module is used for sending a second reference signal group to the terminal in a second target period by the network side equipment.

Optionally, the apparatus 1700 may further receive a measurement result of the second reference signal group reported by the terminal.

Optionally, a reference signal transmitting apparatus 1700 provided in an embodiment of the present application may further include: a configuration module, configured to send configuration information of the first reference signal group to the terminal; and sending configuration information of the second reference signal group to the terminal.

Optionally, a reference signal transmitting apparatus 1700 provided in an embodiment of the present application may further include: a third sending module, configured to send first indication information to a terminal before sending a first reference signal group to the terminal; the first indication information is used for indicating the first target period, and/or the first indication information is used for activating the configuration of the first reference signal group.

Optionally, a reference signal transmitting apparatus 1700 provided in an embodiment of the present application may further include: and the fourth sending module is used for sending second indication information to the terminal before the effective moment of the mode switching.

The reference signal receiving apparatus or the reference signal transmitting apparatus in the embodiments of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The reference signal receiving device provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 2A, fig. 3, and fig. 5 to fig. 6, and achieve the same technical effects, so that repetition is avoided, and no further description is given here. The reference signal sending device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 8, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Optionally, as shown in fig. 18, the embodiment of the present application further provides a communication device 1800, including a processor 1801 and a memory 1802, where the memory 1802 stores a program or instructions that can be executed on the processor 1801, for example, when the communication device 1800 is a terminal, the program or instructions implement the steps of the above-mentioned reference signal receiving method embodiment when executed by the processor 1801, and achieve the same technical effects. When the communication device 1800 is a network side device, the program or the instruction, when executed by the processor 1801, implements the steps of the above-described reference signal transmission method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the communication interface is used for receiving and measuring the first reference signal group in the first target period, and the processor is used for reporting the measurement result of the first reference signal group. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 19 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

The terminal 1900 includes, but is not limited to: at least some of the components of the radio frequency unit 1901, the network module 1902, the audio output unit 1903, the input unit 1904, the sensor 1905, the display unit 1906, the user input unit 1907, the interface unit 1908, the memory 1909, and the processor 1910, etc.

Those skilled in the art will appreciate that terminal 1900 may also include a power source (e.g., a battery) for powering the various components, which may be logically connected to processor 19 via a power management system to perform functions such as managing charge, discharge, and power consumption via the power management system. The terminal structure shown in fig. 19 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1904 may include a graphics processing unit (Graphics Processing Unit, GPU) 19041 and a microphone 19042, with the graphics processor 19041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 1906 may include a display panel 19061, and the display panel 19061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1907 includes at least one of a touch panel 19071 and other input devices 19072. Touch panel 19071, also referred to as a touch screen. Touch panel 19071 may include two parts, a touch detection device and a touch controller. Other input devices 19072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from the network side device, the radio frequency unit 1901 may transmit the downlink data to the processor 1910 for processing; in addition, the radio frequency unit 1901 may send uplink data to the network side device. Typically, the radio frequency unit 1901 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1909 may be used to store software programs or instructions and various data. The memory 1909 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 1909 may include volatile memory or nonvolatile memory, or the memory 1909 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 1909 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 1910 may include one or more processing units; optionally, the processor 1910 integrates an application processor that primarily handles operations related to the operating system, user interface, and applications, etc., and a modem processor that primarily handles wireless communication signals, such as a baseband processor. It is to be appreciated that the modem processor described above may not be integrated into the processor 1910.

Wherein the radio frequency unit 1901 is configured to receive a first reference signal group during a first target period; a processor 1910 for measuring a first set of reference signals; the radio frequency unit 1901 is further configured to report a measurement result of the first reference signal group.

In this embodiment of the present application, since the terminal 1900 additionally receives and measures the first reference signal group including the reference signal for the second mode in the first target period before the effective time of mode switching of the network side device from the first mode to the second mode, and reports the measurement result of the first reference signal group, the terminal 1900 can sense the channel state change caused by mode switching of the network side device in advance and report the channel state change to the network side device, so that the problem related to the reference signal existing during mode switching of the network side device can be avoided.

Optionally, the radio frequency unit 1901 is further configured to receive a second reference signal group during a second target period;

the processor 1910 is further configured to receive and measure a second set of reference signals during a second target period.

Optionally, the radio frequency unit 1901 is further configured to receive, before receiving and measuring the reference signal in the first reference signal group in the first target period, configuration information of the first reference signal group sent by the network side device, and configuration information of the second reference signal group sent by the network side device.

Optionally, the radio frequency unit 1901 is further configured to receive, before receiving and measuring the reference signals in the first reference signal group in the first target period, first indication information sent by the network side device;

Optionally, the radio frequency unit 1901 is further configured to receive, before the effective time of the mode switching, second indication information sent by the network side device;

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the communication interface is used for sending a first reference signal group to a terminal in a first target period and receiving a measurement result of the first reference signal group reported by the terminal; the first target period is located before a mode switching effective time of the network side device, the network side device is in a first mode before the mode switching effective time, the network side device is in a second mode after the mode switching effective time, and the first reference signal group comprises reference signals configured by the network side device for the second mode. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 20, the network side device 2000 includes: an antenna 201, a radio frequency device 202, a baseband device 203, a processor 204, and a memory 205. The antenna 201 is connected to a radio frequency device 202. In the uplink direction, the radio frequency device 202 receives information via the antenna 201, and transmits the received information to the baseband device 203 for processing. In the downlink direction, the baseband device 203 processes information to be transmitted and transmits the processed information to the radio frequency device 202, and the radio frequency device 202 processes the received information and transmits the processed information through the antenna 201.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 203, where the baseband apparatus 203 includes a baseband processor.

The baseband device 203 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 20, where one chip, for example, a baseband processor, is connected to the memory 205 through a bus interface, so as to call a program in the memory 205 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 206, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 2000 of the embodiment of the present invention further includes: instructions or programs stored in the memory 205 and executable on the processor 204, the processor 204 invokes the instructions or programs in the memory 205 to perform the methods performed by the modules shown in fig. 17 and achieve the same technical effects, and are not described herein in detail to avoid repetition.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, where the program or the instruction implements each process of the above embodiment of the reference signal receiving method or the reference signal sending method when executed by a processor, and the same technical effects can be achieved, so that repetition is avoided, and no redundant description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction, implement each process of the above embodiment of the reference signal receiving method or the reference signal sending method, and achieve the same technical effect, so that repetition is avoided, and no redundant description is given here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a nonvolatile storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above-mentioned reference signal receiving method or the reference signal sending method embodiment, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a communication system, which comprises: the terminal can be used for executing the steps of the reference signal receiving method, and the network side device can be used for executing the steps of the reference signal sending method.

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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A method of reference signal reception, the method comprising:

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

the terminal receives and measures a second reference signal group in a second target period;

3. The method of claim 2, wherein prior to said receiving and measuring reference signals in the first reference signal group during the first target period, the method further comprises:

The terminal receives configuration information of the first reference signal group sent by the network side equipment;

and the terminal receives the configuration information of the second reference signal group sent by the network side equipment.

4. The method of claim 3, wherein the step of,

the configuration information is sent by the network side equipment through Radio Resource Control (RRC) signaling.

5. The method according to claim 3 or 4, wherein the configuration information of the reference signal group comprises at least one of:

basic configuration information of the reference signal group;

a pattern of the reference signal group;

a mode of the network side device associated with the reference signal group;

the port number or the transmit receive unit TXRU number of the network side equipment associated with the reference signal group;

6. The method of claim 5, wherein the basic configuration information of the reference signal group comprises at least one of:

port configuration information of the reference signal group;

7. The method according to any one of claims 1 to 6, wherein,

the first reference signal group further comprises reference signals configured by the network side equipment aiming at the first mode.

8. The method according to any of claims 1-7, wherein the mode of the network side device comprises at least one of:

different sleep modes;

different energy saving modes;

different power modes;

modes corresponding to different numbers of antennas;

modes corresponding to different numbers of antenna panels;

modes corresponding to different port numbers;

modes corresponding to different numbers of transmitting and receiving points TRP;

the modes corresponding to different beam numbers.

9. The method according to any of claims 1-8, wherein before the terminal receives and measures the first set of reference signals for the first target period, the method further comprises:

The terminal receives first indication information sent by the network equipment;

10. The method of claim 9, wherein the first indication information is used to indicate the first target period, and the first indication information comprises at least one of:

the mode switching of the network side equipment takes effect at the moment;

the timer of the first target period counts time length;

11. The method of claim 9, wherein prior to the terminal receiving and measuring the first reference signal group for the first target period, the method further comprises:

the terminal determines the time of X time units after the receiving time of the first indication information as the starting time of the first target period;

And the terminal determines the time at which Y time units are positioned after the receiving time of the first indication information as the ending time of the first target period, wherein X and Y are integers which are larger than 0 and X is smaller than Y.

12. The method of claim 11, wherein the X and Y are determined by at least one of:

the first indication information indicates;

protocol conventions;

and determining according to the CSI processing time.

13. The method of claim 9, wherein prior to the terminal receiving and measuring the first reference signal group for the first target period, the method further comprises:

the terminal determines the time at which Z time units are located before the effective time of the mode switching as the starting time of the first target period, wherein Z is an integer greater than 0;

the terminal determines the time when the configuration information of a third reference signal group is received as the ending time of the first target period, wherein the third reference signal group is a reference signal adopted by the terminal equipment after the first target period is ended.

14. The method of claim 13, wherein Z is determined by at least one of:

The first indication information indicates;

protocol conventions;

and determining according to the CSI processing time.

15. The method of claim 10, wherein the first indication information comprises a timer duration of the first target period, the timer being used to time the first target period, the timer expiration representing an end of the first target period, the method further comprising, prior to the terminal receiving and measuring the first reference signal group during the first target period:

the terminal starts the timer at the receiving moment of the first indication information;

or,

and the terminal starts the timer at the moment of T time units after the receiving moment of the first indication information, wherein T is an integer greater than 0.

16. The method of claim 15, wherein T is determined by at least one of:

the first indication information indicates;

protocol conventions.

17. The method of claim 9, wherein the first indication information is used to activate configuration of the first reference signal group, and wherein the first indication information comprises at least one of:

An ID of a configuration of the first reference signal group;

a bitmap comprising a configuration of the first reference signal group.

18. The method of claim 17, wherein the terminal receives and measures a first set of reference signals during a first target period, comprising:

and the terminal receives and measures the first reference signal group according to the configuration of the first reference signal group and the first indication information in the first target period.

19. The method according to any of claims 9-18, wherein the first indication information is one of the following:

radio resource control signaling, RRC;

a media access control unit (MAC CE);

broadcasting a signal;

specific downlink control information, dedicated DCI;

group common downlink control information DCI.

20. The method according to claim 9, wherein the method further comprises:

before the effective time of the mode switching, the terminal receives second indication information sent by the network side equipment;

21. The method of claim 20, wherein the step of determining the position of the probe is performed,

the first indication information is used for indicating the starting time of the first target period, and the second indication information is used for indicating the ending time of the first target period and the configuration of the third reference signal group;

or,

the first indication information is used for indicating a start time and an end time of the first target period, and the second indication information is used for indicating configuration of the third reference signal group.

22. The method according to any one of claims 1-21, wherein the reporting, by the terminal, the measurement result of the first reference signal group includes:

the terminal reports the measurement result of the first reference signal group in the first target period;

or,

and the terminal reports the measurement result of the first reference signal group in a preset time period after the first target period is ended.

23. A reference signal receiving apparatus, the apparatus comprising:

24. A reference signal transmission method, the method comprising:

25. The method of claim 24, wherein the method further comprises:

The network side equipment sends a second reference signal group to the terminal in a second target period;

26. The method of claim 25, wherein before the network side device transmits the first reference signal group to the terminal in the first target period, the method further comprises:

the network side equipment sends configuration information of the first reference signal group to the terminal;

and the network side equipment sends configuration information of the second reference signal group to the terminal.

27. The method of claim 26, wherein the step of determining the position of the probe is performed,

the configuration information is sent by the network side equipment through infinite resource control (RRC) signaling.

28. The method according to claim 25 or 26, wherein the configuration information of the reference signal group comprises at least one of:

basic configuration information of the reference signal group;

a pattern of the reference signal group;

a mode of the network side device associated with the reference signal group;

29. The method of claim 28, wherein the basic configuration information of the reference signal group comprises at least one of:

port configuration information of the reference signal group;

30. The method of any one of claims 24-29, wherein,

31. The method according to any of claims 24-30, wherein the mode of the network side device comprises at least one of:

Different sleep modes;

different energy saving modes;

different power modes;

modes corresponding to different numbers of antennas;

modes corresponding to different numbers of antenna panels;

modes corresponding to different port numbers;

the modes corresponding to different beam numbers.

32. The method according to any of claims 24-31, wherein before the network side device sends the first reference signal group to the terminal in the first target period, the method further comprises:

the network side equipment sends first indication information to the terminal;

33. The method of claim 32, wherein the first indication information is used to indicate the first target period, the first indication information comprising at least one of:

the mode switching of the network side equipment takes effect at the moment;

the timer of the first target period counts time length;

34. The method of claim 33, wherein the first indication information includes X and Y, wherein X and Y are integers greater than 0 and X is less than Y;

the terminal is configured to determine, as a start time of the first target period, a time at which X time units are located after a reception time of the first indication information, and determine, as an end time of the first target period, a time at which Y time units are located after the reception time of the first indication information.

35. The method of claim 33, wherein the first indication information includes Z, wherein Z is an integer greater than 0;

the terminal is configured to determine a time at which Z time units are located before the mode switching effective time as a start time of the first target period, and determine a time at which configuration information of a third reference signal group is received as an end time of the first target period, where the third reference signal group is a reference signal adopted by the terminal after the end of the first target period.

36. The method of claim 33, wherein the first indication information includes a timer duration of the first target period, the timer being configured to time the first target period, and wherein a timeout of the timer indicates that the first target period is over;

the terminal is used for starting the timer at the moment of T time units after the receiving moment of the first indication information;

or,

the terminal is used for starting the timer at the moment of T time units after the receiving moment of the first indication information, and T is an integer larger than 0.

37. The method of claim 36, wherein T is determined by at least one of:

the first indication information indicates;

protocol conventions.

38. The method of claim 32, wherein the first indication information is used to activate configuration of the first reference signal group, and wherein the first indication information comprises at least one of:

an ID of a configuration of the first reference signal group;

a bitmap comprising a configuration of the first reference signal group.

39. The method of any one of claims 32-38, wherein the first indication information is one of:

Radio resource control signaling, RRC;

a media access control unit (MAC CE);

broadcasting a signal;

specific downlink control information, dedicated DCI;

group common downlink control information DCI.

40. The method of claim 32, wherein the method further comprises:

before the effective time of the mode switching, the network side equipment sends second indication information to the terminal;

41. The method of claim 40, wherein the step of,

or,

42. The method according to any one of claims 24-41, wherein the network side device receives measurement results of the first reference signal group reported by the terminal, including:

the network side equipment receives a measurement result of the first reference signal group, which is reported by the terminal in the first target period;

or,

and the network side equipment receives the measurement result of the first reference signal group, which is reported by the terminal in a preset time period after the end of the first target period.

43. A reference signal transmission apparatus, the apparatus comprising:

44. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the reference signal processing method of any one of claims 1 to 22.

45. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the reference signal processing method of any one of claims 24 to 42.

46. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implements the reference signal processing method according to any of claims 1-22 or the steps of the reference signal processing method according to any of claims 24 to 42.