CN116094677A

CN116094677A - Method performed by user equipment and user equipment

Info

Publication number: CN116094677A
Application number: CN202111310117.6A
Authority: CN
Inventors: 马小骏; 罗超; 刘仁茂
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2023-05-09
Also published as: WO2023078394A1

Abstract

The invention provides a method executed by user equipment and the user equipment. The method performed by the user equipment comprises: acquiring first configuration information, wherein the first configuration information is CSI-RS resource configuration information received by an idle or inactive user; acquiring second indication information, wherein the second indication information is information indicating availability of at least one CSI-RS resource; and determining the corresponding relation between the CSI-RS resources corresponding to the first configuration information and the bits of the availability indication information in the second indication information, and determining the availability of the CSI-RS resources corresponding to the first configuration information according to the bits in the second indication information.

Description

Method performed by user equipment and user equipment

Technical Field

The present invention relates to the field of wireless communication technology, and in particular, to a method performed by a user equipment and a corresponding user equipment.

Background

User experience is one of the key factors for 5G/NR success, not only in terms of data rate and delay experienced by users, but also in terms of terminal power consumption savings. The enhanced technical scheme of terminal power consumption saving is one of the elements of 5G/NR success. While some existing technologies have been used for saving terminal power consumption, additional enhanced evolution technologies remain one of the key technologies in future developments. For example, the power saving technology can be applied to the idle state or inactive state terminal, which is helpful for the terminal device to further reduce power consumption or improve the capability of receiving signals while guaranteeing the communication capability in the corresponding state, and obtain other benefits.

Disclosure of Invention

To solve at least some of the above problems, the present invention provides a method performed by a user equipment and the user equipment. In this way, the user equipment obtains the availability of the reference signals configured in the network by means of the indication message. The terminal can further obtain accurate measurement or parameter estimation, more sleep time or better signal receiving capability and the like through receiving the reference signals, so that the terminal obtains the advantages of reduced power consumption, improved receiving capability and the like, improves the service capability of a network, expands the compatibility of the network and greatly reduces the deployment cost of the communication network.

According to the present invention, there is provided a method performed by a user equipment UE, comprising: acquiring first configuration information, wherein the first configuration information is CSI-RS resource configuration information for idle or inactive users; acquiring second indication information, wherein the second indication information is information indicating availability of at least one CSI-RS resource; and determining the corresponding relation between the CSI-RS resources corresponding to the first configuration information and the indicating information bits in the second indicating information, and determining the availability of the CSI-RS resources corresponding to the first configuration information according to the bits in the second indicating information.

Preferably, the corresponding relation between the CSI-RS resource and the indication information bit in the second indication information is determined by determining an indication set sequence number according to the CSI-RS resource configuration information in the first configuration information; and determining bits used for indicating the availability of the CSI-RS resources in the second indication information according to the indication set sequence number.

Preferably, the indication set sequence number is generated according to at least one of the sequence of the resource set configuration information corresponding to the CSI-RS resource in the system configuration message, the indication set identifier corresponding to the CSI-RS resource, and the reference signal sequence number used by the CSI-RS resource.

Preferably, the quasi co-located QCL using CSI-RS resources refers to SSB sequence numbers to generate low order bits indicating set sequence numbers; and generating high order bits of the indication set sequence number by using the indication set identification corresponding to the CSI-RS resource.

Preferably, the sequence of the indication set sequence number used by the CSI-RS resource is determined according to the sequence of the resource set configuration information corresponding to the CSI-RS resource in the resource set configuration information using the same QCL reference SSB sequence number in the system message.

Preferably, another corresponding relation between the CSI-RS resource and the bit in the second indication information is that the sequence number of the bit in the second indication information of the indication bit of the CSI-RS resource is determined according to the position of the transmission opportunity of the CSI-RS resource corresponding to the first configuration information.

Preferably, the sequence number of the bit of the indication bit of the CSI-RS resource in the second indication information may be determined according to the symbol of the PDCCH in which the second indication signaling is located as the reference position.

Preferably, the sequence number of the bit of the indication bit of the CSI-RS resource in the second indication information may be determined for the reference position according to the CSI-RS transmission opportunity having the same QCL reference signal as the second indication signaling.

Preferably, a sequence number of the indication bit of the CSI-RS resource in the second indication information may be determined for the reference position according to the paging detection opportunity associated with the second indication signaling.

Furthermore, according to the present invention, there is provided a user equipment comprising: a processor; and a memory storing instructions, wherein the instructions, when executed by the processor, perform the method described above.

According to the invention, the terminal can further obtain accurate measurement or parameter estimation, more sleep time or better signal receiving capability and the like through receiving the reference signal, so that the terminal obtains the advantages of reduced power consumption, improved receiving capability and the like, improves the service capability of the network, expands the compatibility of the network and greatly reduces the deployment cost of the communication network.

Drawings

The foregoing and other features of the invention will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings in which:

fig. 1 is a flow chart illustrating a method performed by a user equipment in one embodiment according to the invention.

Fig. 2 is a flow chart illustrating a method performed by a user equipment in one embodiment according to the invention.

Fig. 3 is a diagram illustrating determination of indicated CSI-RS resource availability by indication signaling according to one embodiment of the invention.

Fig. 4 is a schematic diagram illustrating that when there are multiple PDCCH detection opportunities on one paging detection opportunity, the terminal determines availability of CSI-RS resources according to the detection opportunity position where the indication information is located, respectively.

Fig. 5 is a diagram illustrating determining availability of a plurality of CSI-RS resources in a CSI-RS resource set according to a transmission opportunity of a first CSI-RS resource in the CSI-RS resource set.

Fig. 6 is a diagram illustrating a CSI-RS transmission opportunity using the same reference signal as a PDCCH indicating an available signaling as a reference location.

Fig. 7 is a block diagram schematically illustrating a user equipment to which the present invention relates.

Detailed Description

The invention is described in detail below with reference to the drawings and the detailed description. It should be noted that the present invention should not be limited to the specific embodiments described below, which are provided as examples only in order to convey the scope of the subject matter to those skilled in the art. In addition, for the sake of brevity, detailed descriptions of well-known techniques, which are not directly related to the present invention, are omitted to prevent confusion of the understanding of the present invention.

Generally, all terms used herein will be interpreted according to their ordinary meaning in the relevant art, unless explicitly given and/or implied by the use of such terms in the context of their use. All references to an/one/the element, device, component, means, step, etc. are to be interpreted openly as referring to at least one instance of the element, means, component, means, step, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless it has to be explicitly described as being followed or preceded by another step and/or implicitly as being followed or preceded by another step. Any feature of any embodiment disclosed herein may be applicable to any other embodiment, where appropriate. Likewise, any advantages of any embodiment may apply to any other embodiment and vice versa.

Various embodiments in accordance with the present invention are described in detail below with respect to an exemplary application environment for a 5G/NR mobile communication system and its subsequent evolutions. However, it should be noted that the present invention is not limited to the following embodiments, but is applicable to many other wireless communication systems, such as a 5G-after communication system and a 5G-before 4G mobile communication system, an 802.11 wireless network, and the like.

Some terms related to the present invention are described below, and unless otherwise specified, the terms related to the present invention are defined herein. The terms given in the present invention may be named differently in LTE, LTE-Advanced Pro, NR and later or other communication systems, but the present invention uses uniform terms, and when applied to a specific system, may be replaced by terms used in the corresponding system.

3GPP:3rd Generation Partnership Project, third Generation partnership project

LTE: long Term Evolution Long term evolution technology

NR: new Radio, new air interface

UE: user Equipment

gNB: NR base station

FR1: frequency range 1as defined in TS38.104, frequency range 1 defined by TS38.104

FR2: frequency range 2as defined in TS38.104, frequency range 2 defined by TS38.104

BWP: bandwidth Part, bandWidth segment/section

SFN: system frame number System frame number

OFDM: orthogonal Frequency Division Multiplexing orthogonal frequency division multiplexing

CP: cyclic Prefix

TA: timing Advance, upstream Timing Advance

SCS: sub-carrier spacing, subcarrier spacing

RB: resource Block, resource Block

RE: resource Element, resource unit

CRB: common Resource Block common resource block

PRB: physical Resource Block physical resource blocks

VRB: virtual resource block virtual resource blocks

REG: resource Element Group resource unit group

EPRE: energy per resource element energy per resource unit

TDD: time Division Duplexing time division duplexing

FDD: frequency Division Duplexing frequency division duplexing

CSI: channel State Information channel State information

DCI: downlink Control Information downlink control information

MCS: modulation and Coding Scheme modulation coding scheme

SRS: sounding Reference Signal sounding reference signal

DMRS: demodulation Reference Signal demodulation reference signal

CSI-RS: channel State Information Reference Signal channel State information reference Signal

TRS: tracking Reference Signal tracking reference signals

CRC: cyclic Redundancy Check cyclic redundancy check

SFI: slot Format Indication time slot format indication

QCL: quasi co-location, quasi co-location

HARQ: hybrid Automatic Repeat Request hybrid automatic repeat request

SIB: system information block System information block

SIB1: system Information Block Type 1, system information Block type 1

PSS: primary Synchronization Signal master synchronization signal

SSS: secondary Synchronization Signal auxiliary synchronization signal

MIB: master Information Block main information block

SSB: synchronization Signal Block synchronization system information block

CORESET: control resource set controlling resource aggregation

RACH: random-access channel

PBCH: physical broadcast channel physical broadcast channel

PUCCH: physical Uplink Control Channel physical uplink control channel

PUSCH: physical Uplink Shared Channel physical uplink shared channel

PRACH: physical random-access channel

PDSCH: physical downlink shared channel physical downlink shared channel

PDCCH: physical downlink control channel physical downlink control channel

UL-SCH: uplink Shared Channel uplink shared channel

DL-SCH: downlink Shared Channel uplink shared channel

NZP-CSI-RS: not-Zero-Power CSI-RS, non-Zero Power CSI-RS

C-RNTI: cell Radio Network Temporary Identifier cell radio network temporary identity

P-RNTI: paging RNTI, paging radio network temporary identifier

RA-RNTI: random Access RNTI random access radio network temporary identifier

CS-RNTI: configured Scheduling RNTI, configuring and scheduling a wireless network temporary identifier

SI-RNTI: system Information RNTI System information radio network temporary identifier

TC-RNTI: temporary C-RNTI Temporary cell radio network Temporary identity

The following is a description of the technology associated with the scheme of the present invention. Unless otherwise indicated, the same terms in the specific examples have the same meaning as those in the related art.

It should be noted that, in the present invention, the meaning of the user, the user equipment, the terminal and the terminal equipment are the same, and the UE may also be used to denote the terminal, which is not specifically distinguished and limited hereinafter. Similarly, a network device is a device that communicates with a terminal, including but not limited to a base station device, a gNB, an eNB, a wireless AP, etc., and is not specifically distinguished and defined hereinafter. The base station may also be described herein as one form of implementation of the network device, and other forms of network devices may be readily substituted for the specific implementation.

One unit of time-frequency resources in NR is a slot. Depending on the network setup, one slot may contain 14 (Normal CP scene) or 12 (Extended CP scene) OFDM symbols. Multiple slots may constitute a subframe and a radio frame. One radio frame uses a length of 10 milliseconds. Depending on the subcarrier spacing parameters, a radio frame may be composed of several time slots, for example, 10 time slots at a subcarrier spacing of 15 kHz. The terminal can determine the position of the time slot according to parameters such as the frame number SFN of the radio frame and the time slot serial number in the radio frame. The terminal may also determine symbol positions for signal transmission in the time domain based on sequence numbers of symbols in the time slot. Resources in the NR may be identified using resource blocks and resource units. The resource blocks RBs may be defined in the frequency domain as

One RB is 180kHz in the frequency domain for a consecutive subcarrier, for example, for a subcarrier spacing (SCS) of 15 kHz. The resource element RE may determine one unit on a time-frequency grid, representing 1 subcarrier in the frequency domain and 1 OFDM symbol in the time domain. A typical subcarrier spacing uses 15kHz x 2 ^μ Mu can take an integer value.

In the network, the configurable CSI-RS reference signal is used for the terminal to perform functions such as channel measurement, beam management and the like. The CSI-RS signal parameters may be configured to the terminals in the form of CSI-RS resources, and one terminal may configure one or more CSI-RS resources. One or more CSI-RS may also constitute one CSI-RS resource set, and one terminal may configure one or more resource sets. Each CSI-RS resource defines a CSI-RS signal comprising a plurality of configuration parameters, such as time domain period and offset configuration, frequency domain location and bandwidth configuration, power configuration, code division parameter configuration, QCL configuration, frequency domain density parameter, subcarrier location.

And transmitting the CSI-RS on the determined time-frequency resource according to the related configuration parameters. The network may configure period T of the periodic CSI-RS signal _CSI-RS And offset T _offset The terminal may determine a slot position of CSI-RS transmission according to the configuration parameters. For example, the terminal determines that the radio frame and slot number satisfy

Radio frame n of (2) _f And time slot->

Frame number and slot number transmitted for CSI-RS signals. The terminal may also determine the number of symbols used by the CSI-RS on the slot according to the configuration parameters, and then the terminal may determine a number of slots and symbol positions for CSI-RS signal transmission. The terminal may determine a starting position and a bandwidth of the CSI-RS on the frequency domain according to the configuration. The network can configure the frequency domain density and the frequency domain distribution parameters of the CSI-RS, and the terminal can determine which REs occupied by the CSI-RS on the RBs for transmission according to the configuration. Depending on the configuration parameters, the CSI-RS may use part of REs in the RB in the frequency domain. For example, the CSI-RS uses a frequency domain density parameter of 3, and then there are 3 REs on 12 REs determined by one symbol and one RB for transmission of the CSI-RS signal, and the remaining REs are not used for transmission of the CSI-RS signal. The sequence number of the CSI-RS signal using REs on the RBs may be determined by configuration parameters, e.g., using a 4-bit bitmap for determining which of every 4 REs are used for transmission of the CSI-RS signal. A sequence number representation may also be used, such as 0 starting from the first RE, 1 starting from the second RE, etc. The network may also be configured with several other parameters, and the terminal may determine the characteristics of the CSI-RS signal according to the relevant configuration and may be used for relevant reception or measurement, etc.

Therefore, the terminal can determine a plurality of time-frequency positions corresponding to one CSI-RS resource according to the related parameters, and the transmission of the related CSI-RS signal is performed at the time-frequency positions, which can be called as a plurality of transmission opportunities of the CSI-RS. The terminal may receive CSI-RS signals on these transmission opportunities for measurement or signal reception, etc.

According to different configuration parameters, the CSI-RS may be classified into various types, such as CSI-RS where the NZP-CSI-RS is non-zero power, that is, the transmission power of the CSI-RS is not zero. CSI-RS may also be divided into periodic, semi-permanent, and aperiodic signal types, depending on configuration parameters. The periodic CSI-RS is that, after the configuration takes effect, the associated CSI-RS resources repeatedly appear on the time-frequency resources according to a certain period. Semi-persistent and aperiodic CSI-RS resources then need to be activated by means of MAC-CE or DCI indication. The terminal may implement different functions according to the resources of different CSI-RSs, related reporting directives, etc. The CSI-RS signal used for time frequency Tracking (Tracking) may also be referred to as TRS. In the invention, the CSI-RS is uniformly used as the CSI-RS applicable to different types or parameters of the invention, or the signal which can realize similar functions is referred to as the CSI-RS.

The network transmits SSB signals at a certain period, and the SSB may include various synchronization signals, such as SSS and PSS. The network may use spatial filters (also called beams) for the transmission and reception of signals, and the beams used in the network may be analog beams or digital beams or a mixture of both. The SSBs may be transmitted by the network using beams, such as the network transmitting SSBs using 8 beams, and SSBs in the transmit period may be numbered SSB0 through SSB7, respectively, representing SSBs transmitted using corresponding beams. The terminal can select the best wave beam to receive or transmit signals according to different positions so as to realize better communication effect.

The QCL parameters are used in the network to characterize the spatial relationship between different signals, that is to say that two signals satisfying the QCL relationship have a certain spatial channel correlation. For example, the network configures two signals to satisfy a certain QCL type relationship, and the terminal may use the same certain parameter when processing the two signals, or may apply a parameter derived from one signal to the reception or transmission of the other signal. For example, the QCL type of two signals is QCL-type a, and the parameters such as doppler shift, doppler spread, average delay, delay spread, etc. that can be obtained from one signal are applied to the other signal, or the parameters can be shared. For example, the QCL type of two signals is QCL-typeC, and the doppler shift, delay spread parameter, and other parameters of one signal can be obtained from one signal. For example, the QCL type is QCL-type, and a signal beam parameter information may be obtained from a signal. Other QCL types are possible, and the user can identify at the time of application based on the relevant parameters. The user may also apply the relevant parameters between more signals that mutually satisfy the QCL relationship, and specific processes are not described one by one.

The CSI-RS signals transmitted by the network device may be transmitted using a beam, and the reference signals may be configured in the network for the CSI-RS as signals satisfying the QCL relationship therewith. For example, the network may configure SSB i as a reference signal of CSI-RS signal that satisfies a certain QCL type, and the terminal may consider SSB i to be the same as certain channel parameters of the CSI-RS, such as spatial signal parameters, doppler shift parameters, and so on. If the terminal side has other signals and SSB i to meet QCL, the terminal can also obtain relevant parameters through the receiving or measuring of the CSI-RS, and the relevant parameters are applied to the receiving of the signals.

The network may transmit a DCI message to the terminal through a PDCCH channel. The terminal can determine a series of time-frequency resources and other parameters according to the configuration of the PDCCH, and the terminal detects the DCI on the determined resources. When the terminal correctly detects the DCI message, relevant actions can be performed according to the content indicated by the DCI. The PDCCH is transmitted using a beam, and the network may configure a reference signal for the DM-RS port of the PDCCH to satisfy the QCL relationship, for example, configure a certain SSB as the QCL reference signal of the PDCCH. The terminal may also determine a QCL reference signal of the default PDCCH according to the configuration of the PDCCH, for example, determine a certain SSB as its reference signal according to the location of the time-frequency resource. The configuration parameters of the PDCCH channel include a search space set parameter, a CORESET parameter, etc. The terminal may detect a PDCCH candidate set, referred to as a PDCCH detection opportunity, on resources determined by the relevant search space set and CORESET according to the configuration. The terminal may receive the PDCCH according to the spatial filter parameters of the QCL reference signal of the PDCCH on the PDCCH detection opportunity and detect whether the relevant DCI is received correctly.

Terminals in the network may be classified into different states, such as a connected state, an idle state, and an inactive state, according to whether the terminals establish a connection with the wireless network and whether the wireless connection is suspended. The user in connection state establishes wireless link connection with the network for data transmission or related service processing. The idle state or inactive state terminal also maintains a certain connection with the network, for example, the terminal needs to monitor broadcast messages and paging messages sent by the network according to related configuration or parameters, or perform related measurements, etc. The actions of the idle state and the inactive state users are similar in many aspects of the present invention, and in order to avoid redundancy, the relevant actions for the idle state terminal may be applied to the inactive state terminal in the relevant text of the present invention, unless otherwise specified. The analogy may also be made if other user states similar to the idle state exist in the network, which is not described in detail.

If the terminal in an idle or inactive state has no signal to receive, transmit, measure or other actions, the terminal may be in a sleep state to save power consumption. The terminal may be in different sleep modes depending on different channel conditions or services to be processed, etc. Such as entering a shallow sleep mode for a brief sleep when there is a new signal to process for a short period of time. And then, for example, enters a deep sleep mode, which is used when the terminal has no new signal to process for a longer time, and the power consumption of the terminal can be reduced more than in the shallow sleep mode. Generally, under the condition of not affecting service functions, the terminal is in a sleep mode, so that the power consumption of the terminal can be effectively reduced, and the user experience is improved.

Some pre-processing is often required when or before the terminal receives the data signal. For example, the terminal can adjust Automatic Gain Control (AGC) parameters, so that the received signal can be adjusted to be within a proper dynamic range, so as to obtain a better receiving effect. Or the terminal needs to track time frequency, and estimates time offset or frequency offset parameters of signals according to the reference signals, so that the time frequency parameters are consistent with the base station or accurate channel parameters can be obtained, and the signals or data to be processed can be correspondingly corrected, so that better receiving performance can be obtained. The terminal may also have some other processing to optimize data processing, improve user experience, etc., which will not be described in detail herein. The network can configure and send reference signals to the terminal for the functions of channel measurement, channel parameter estimation, mobility estimation, space parameter estimation and the like of the terminal, and can realize the functions of radio resource management, auxiliary data signal reception and the like. For example, the terminal may receive a synchronization reference signal sent by the network, perform AGC adjustment, estimate a time-frequency parameter, or the like. Alternatively, the terminal may receive CSI-RS signals transmitted by the network for channel measurement or beam management, etc.

Terminals in idle or inactive state need to receive broadcast or paging information in the network periodically or make related measurements. Before receiving paging information, the terminal can receive the reference signal sent by the network according to the capacity, channel condition and other factors, perform AGC, time-frequency tracking and other processes, and receive corresponding data signals, thereby obtaining good effects. The number or duration of wake-up from sleep mode may be different for the terminal to do such pre-processing due to various internal or external factors. For example, when the channel condition is poor, the receiving quality of the related reference signal is poor, or when the processing capability of the terminal is limited, the terminal needs to wake up for multiple times, and receive multiple reference signals, so as to achieve a better receiving effect. For another example, the configured reference signal may be further away from the signal to be received, and the terminal may need to receive the reference signal more times or keep a longer active time to obtain a better receiving effect.

An idle or inactive user terminal may utilize the synchronization signal in the SSB to implement the associated AGC or time-frequency parameter estimation. The period and time-frequency position of the SSB are often fixed, and may not meet the requirements of different users for receiving signals and reducing power consumption, so the network may provide additional reference signals for the terminal to receive, so that the terminal can obtain required parameters or information more quickly, thereby reducing the time or number of awakening to achieve better energy-saving effect. The network may configure the CSI-RS signal to be used as a reference signal for idle or inactive users. For example, the network configures a plurality of non-zero power periodic CSI-RS signals in the system broadcast information, and the periodic CSI-RS signals are used as reference signals of idle or inactive users. To save power consumption of the network, the network may be shared for idle state users using CSI-RS signals sent to the connected state users. If the connected state user does not use the resources, the network can partially or completely shut down the CSI-RS signals according to different conditions so as to reduce the power consumption of the network side.

The terminal may determine one or more CSI-RS resources and corresponding transmission opportunities according to the configuration of the network. Whether to actually transmit CSI-RS signals on these transmission opportunities of CSI-RS may be controlled by the network. For example, the network device may adjust the CSI-RS configuration, start or stop partial signaling, etc. according to the adjustment of the connection state user or the network power saving or other reasons, and at this time, it is required to notify the idle state user to perform state update, so that the idle state user can correctly receive the CSI-RS signal. The network device may send indication information indicating the availability status of the configured CSI-RS resources at one or several transmission opportunities. When a transmission opportunity of one CSI-RS is indicated as available, the terminal may receive the signal on the transmission opportunity to use the signal for power consumption saving purposes. When CSI-RS is configured as a periodic signal, there are several transmission opportunities in the time domain. The indication signal may indicate the availability of one CSI-RS transmission opportunity, or may indicate the availability of several CSI-RS transmission opportunities over a period of time, for example, the availability of CSI-RS transmission opportunities over several paging cycles starting from a certain starting point. The terminal may determine the effective range of the availability indication based on characteristics of the indication signal or other relevant configurations, without specific limitation herein.

For simplicity of description herein, the related actions indicating availability of CSI-RS signals on one or several transmission opportunities may also be simply referred to as indicating availability or unavailability of CSI-RS signals or availability or unavailability of CSI-RS resources. These descriptions may be understood as indicating whether a CSI-RS signal is transmitted on one or several transmission opportunities determined by the corresponding CSI-RS resource.

The network may indicate the available or unavailable status of the CSI-RS transmission opportunity through physical layer signaling. For example by some bits of the DCI. The terminal needs to determine the corresponding relation between the bits in the received DCI and the resources of the CSI-RS configured by the network, so as to determine the state of the CSI-RS signal on the corresponding transmission opportunity. Meanwhile, when relevant parameters of the CSI-RS resource are configured, the cost of configuration signaling needs to be considered. For example, in NR, the maximum capacity of one system message is 2976 bits, and if the number of bits used for configuring the relevant parameters of CSI-RS resources is greater than the capacity, it may be necessary to use multiple system messages for transmission, which may result in an increase in complexity of the system and increase power consumption of the base station and the terminal. Therefore, the signaling overhead required for reducing the CSI-RS configuration parameters is also beneficial to the improvement of system performance. In the invention, the terminal can obtain the position of the indication bit corresponding to the CSI-RS resource in the physical layer availability indication information through the network configuration information, thereby determining the availability of the CSI-RS signal on one or more transmission opportunities according to the indicated bit information. Meanwhile, the configuration parameters in the system use smaller signaling overhead through reasonable design, so that better system performance is obtained.

Hereinafter, the method and process used in the present invention will be described with reference to specific examples.

As shown in fig. 1, in step 101, the terminal receives first configuration information, where the first indication information indicates CSI-RS resource configuration configured in the network for use by idle or inactive users.

In step 102, second indication information is received, the indication information indicating an availability of at least one CSI-RS resource for use by an idle state or inactive state user.

Then, in step 103, an indication set sequence number of the CSI-RS resource in the first configuration is determined, and availability of the CSI-RS resource is determined according to the indication set sequence number in the second indication information.

The following specifically exemplifies the related processes, respectively.

In the network, the availability of CSI-RS resources may be indicated by physical layer signaling. For example, indicated by paging some bit fields in DCI; or, the paging advance indication information is indicated by a bit field in the paging advance indication information; it is also possible to use bit field indications in other physical layer signaling. Here, paging DCI is taken as an example. There are several bits available in the paging DCI for the availability indication information, e.g. 6 reserved bits in a cell using the non-shared spectrum. In a cell using a shared spectrum, paging DCI has 8 reserved bits. These bits are not used by the R16 and previous versions of the terminal and thus may be used to indicate the availability of CSI-RS resources. In addition, there are also 4 reserved bits in the Short Messages field in the paging DCI that are not used by R16 and previous versions of the terminal, which can also be used to indicate the availability of CSI-RS. Thus, in the network, the availability of CSI-RS may be indicated with bits in the paging DCI. Similarly, the terminal may also indicate the availability of CSI-RS according to bits in other physical layer signaling, which is not described in detail herein.

Several CSI-RS resources or resource sets may be configured in the network for reception by idle or inactive terminals. The terminal needs to determine which resource or resources or the availability of a set of resources is indicated by the availability indication bit in the received DCI so that the signal can be correctly received.

Optionally, the terminal determines a correspondence between the indication bits in the DCI and the CSI-RS resource set according to the indication set number. One CSI-RS resource set contains one or more CSI-RS resources. These CSI-RS resources may determine their availability based on the indication set sequence numbers used by the resource sets. The indication set may be understood as a set of CSI-RS resources corresponding to the same indication bits in the indication information. One indication set may contain one or more CSI-RS resource sets that all use the same indication bits to determine the transmission of the relevant signal on the transmission opportunity. The indication information of one DCI may indicate the availability of multiple indication sets, for example, by means of a bit bitmap, where each bit corresponds to the indication information of one indication set. At this time, each bit corresponds to a sequence number of an indication set, and the terminal may determine availability of CSI-RS resources indicated by the indication bits in the DCI according to a correspondence between the sequence number of the indication set and the indication bits in the DCI.

For a specific example, an N-bit indication field is used in paging DCI, where each bit corresponds to an indication set number, e.g., the first bit corresponds to an indication set number of 0, the second bit corresponds to an indication set number of 1, etc. The terminal determines relevant CSI-RS resources according to the sequence number of the indication set and determines availability of the relevant CSI-RS resources according to the indicated bit information. For example, bit 1 is used to indicate that transmission opportunities for the relevant CSI-RS resources are available over a period of time, on which the terminal may receive CSI-RS signals.

Optionally, the terminal determines the corresponding relation between the CSI-RS resources and the indication information bits according to the indication set sequence number configured for each CSI-RS resource set. The indication set number corresponds to an indication bit in an indication bit field of the DCI, and the terminal may determine availability of CSI-RS resources in the relevant CSI-RS resource set according to the indication bit.

Optionally, the terminal determines the indication set sequence number according to the QCL reference signal used by the CSI-RS resource. For example, all CSI-RS resources in one CSI-RS resource set use a certain SSB sequence number as a QCL reference signal, and the terminal obtains an indication set sequence number or a part of sequence numbers corresponding to the CSI-RS resources in one CSI-RS resource set according to the sequence number of the SSB.

The network device may indicate the parameters sent by the SSB through SIB or RRC message. For example, the sequence number of the actually transmitted SSB is indicated in the network by an SSB-locationinburst cell in SIB 1. The SSB-locationburst may further comprise a plurality of parameters, such as an inOneGroup parameter (intra-group identification parameter) through which the network indicates the transmission of the individual SSBs in the or each SSB packet. When the maximum number of SSBs per half frame is 4, 4 significant bits are used to represent the transmission situation of the respective SSBs. When the maximum number of SSBs per half frame is 8, the transmission case of SSBs is represented using 8 bits. The leftmost bit of the inOneGroup parameter corresponds to SSB number 0. When the maximum number of SSBs in a field is 64, each 8 SSBs may be divided into a group, and the SSB transmission case in each group is represented by 8 bits. The leftmost bit in the inOneGroup corresponds to the first SSB number in each group, i.e., 0,8, 16, etc., and the other bits and so on. Bits set to 0 in inOneGroup indicate that the corresponding SSB is not actually transmitted, and bits set to 1 indicate that the SSB corresponding to the associated sequence number is transmitted. When the maximum number of SSBs in a field is greater than 8, such as 64, the network also sends whether or not each antenna group exists through an 8-bit groupPresence parameter (group presence parameter). The leftmost bit of groupPresence is associated with SSB sequence numbers 0-7, the second bit is associated with SSB sequence numbers 8-15, and so on. A bit set to 0 in groupppresent indicates that the SSB sequence number corresponding to the bit does not exist, or none of the SSBs of the group is actually transmitted. Setting a bit to 1 in groupppresent indicates that the 8 SSBs corresponding to the bit are transmitted or not according to the indicated bit state in inOneGroup. In this way, the network can indicate all the actually transmitted SSB sequence numbers within the field under various scenarios. The network may also indicate the SSB sequence number actually sent in the system by other means, such as when the maximum number of SSBs in a field is 64, and indicate the transmission of all SSBs in the field by a 64-bit bitmap. The terminal can obtain the SSB actually transmitted in the field through the configuration of the network. The terminal may obtain information of the SSB actually transmitted on each period according to the period parameter of the SSB.

Optionally, the terminal determines the indication set sequence number according to the sequence number of the QCL reference SSB used by the CSI-RS resource. Optionally, when the cell uses the FR1 frequency band, or the maximum SSB number in the cell is less than or equal to 8, the terminal uses the QCL reference SSB number used by the CSI-RS resource as the indication set number corresponding to the CSI-RS resource. Optionally, the terminal uses the sequence number of the actually transmitted SSB sequence number indicated in the system message as the indication set sequence number. For example, the inOneGroup parameter is 11001111 configured in the network, indicating the SSB actually transmitted in the network. The terminal may determine that the SSB sequence numbers actually transmitted are 0,1,4,5,6,7, respectively. The terminal determines that the indication set sequence numbers corresponding to the CSI-RS resources using the

SSB sequence number

0,1,4,5,6,7 as the reference signal are 0,1,2,3,4 and 5 respectively.

Optionally, when the cell uses the FR2 frequency band, or the maximum SSB number in the cell is greater than 8, the terminal uses the sequence number of the QCL reference SSB sequence number in inOneGroup used by the CSI-RS resource as the indication set sequence number corresponding to the CSI-RS resource. Optionally, the terminal uses the sequence number of the actually transmitted SSB sequence number indicated in the system message as the indication set sequence number. And the terminal indicates the sequence number of the SSB sequence number which is actually transmitted in the inOneGroup as an indication set sequence number according to the QCL reference SSB sequence number used by the CSI-RS resource. For example, the inOneGroup parameter is 11001111 and the groupppresent parameter is 110000 in the network, indicating the SSB actually transmitted in the network. The terminal can determine that SSB serial numbers actually transmitted are 0 and 8 respectively; 1,9;4, 12;5, 13;6, 14;7,15. The terminal determines that the indication set sequence number corresponding to the CSI-RS resource using SSB sequence numbers of 0 and 8 as reference signals is 0. And the indication set sequence number corresponding to the CSI-RS resource using SSB sequence numbers of 1 and 9 as reference signals is 1. The index set numbers corresponding to CSI-RS resources using SSB numbers 4, 12 as reference signals are 2, respectively, and so on.

Optionally, the terminal indicates the set sequence number according to the indication set identifier of the CSI-RS resource set and the QCL reference SSB sequence number used. The network configures a plurality of CSI-RS resources through a CSI-RS resource set, and the CSI-RS resources use the same QCL reference signals. Meanwhile, the network configures an indication set identifier for the CSI-RS resource set, and the terminal generates an indication set sequence number corresponding to the CSI-RS resource in the CSI-RS resource set according to the indication set identifier and the SSB sequence number. For example, the terminal generates a low order bit of the indication set sequence number according to the reference SSB sequence number used by the CSI-RS resource, and generates a high order bit of the indication set sequence number according to the indication set identification. For a specific example, if an indication field with maximum 6 bits is used in DCI to indicate availability of several CSI-RS resources, then the corresponding indication set numbers are integer values from 0 to 5, and may be represented by 3 binary bits [ xyz ] respectively, as shown in table 1

Table 1 indicates the representation of set numbers

Indication set number	0	1	2	3	4	5
							Bit representation [ xyz ]]	000	001	010	011	100	101

For example, the terminal determines a low order bit indicating a set number, e.g., z=ssb number mod 2, according to a reference SSB number used by CSI-RS resources. mod is a modulo operation. The terminal determines the high order bits xy based on the indication set identification. The terminal may determine a sequence number represented by an indication set sequence number of CSI-RS resources in the resource set of xyz.

As an alternative example, the default value of the upper bits of the indication set used to configure CSI-RS resources in the network is [ xy ] =00. When one CSI-RS resource set does not use a default indication set, 1 optional bit may be used as an indication set identification to indicate a high order bit used by the CSI-RS resource set. Specifically, when the CSI-RS resource set does not use the optional bit, the CSI-RS resource set uses a default indication set sequence number high order bit of 00. When the optional bit is used to indicate 0, the terminal determines that the upper bit of the indication set number is 01, and when the optional bit is used to indicate 1, the terminal determines that the upper bit of the indication set number is 10. By the method, the terminal can determine the indication set sequence number used by the resource set according to the indication bit of each resource set and the SSB sequence number, so that the availability of the CSI-RS resource can be determined according to the availability indication bit in the received DCI. The meaning represented by the upper bits, the lower bits, and the bits 0/1 in the above embodiments may be interchanged in terms of implementation, and the same indication purpose may be achieved, which will not be described here.

Optionally, the terminal determines the indication set sequence number according to the configuration order of the CSI-RS resources in the system message. When the network configures the CSI-RS resources in the system message, the network configures the CSI-RS resources according to the mode that parameters of each resource set are sequentially arranged. The terminal may determine an indication set sequence number used by the CSI-RS resource according to an order of a resource set configuration parameter corresponding to the CSI-RS resource for which the availability is indicated by using physical layer signaling. For example, a partial bit of the sequence number of the configuration order is used as the instruction set sequence number. Or as an indication set identification.

Optionally, the terminal determines an indication set sequence number of the CSI-RS resource according to a configuration order of the CSI-RS resource in the system message and the QCL reference signal used by the CSI-RS resource. For example, the terminal determines the indication set sequence number used by the CSI-RS resource according to the sequence in the resource set configuration information of the same QCL reference SSB sequence number used in the system message by the resource set configuration information corresponding to the CSI-RS resource. For example, according to the configuration sequence of the resource sets in the system message, the terminal uses SSB x as the QCL reference signal and is [ CSI-RS resource set a, CSI-RS resource set b, CSI-RS resource set c, ], then the indication set sequence number of the usage of the corresponding CSI-RS resource set a is 0, the indication set sequence number of the usage of the CSI-RS resource set b is 1, the indication set sequence number of the usage of the CSI-RS resource set c is 2, and so on. For a specific example, according to the configuration sequence of the resource sets in the system message and the related resource configuration parameters, the resource set corresponding to the CSI-RS using SSB0 as the QCL reference signal is [ CSI-RS resource set 0, CSI-RS resource set 4, CSI-RS resource set 8] in the configuration sequence, and then the corresponding terminal determines that the indication set sequence number of the use of the CSI-RS resource in the CSI-RS resource set 0 is 0, the indication set sequence number of the use of the CSI-RS resource in the CSI-RS resource set 4 is 1, and the indication set sequence number of the use of the CSI-RS resource in the CSI-RS resource set 8 is 2. Similarly, the resource set corresponding to the CSI-RS using SSB3 as the QCL reference signal is [ CSI-RS resource set 2, CSI-RS resource set 6] in order according to the configuration sequence, and then the indication set sequence number of the usage of the CSI-RS resource in the corresponding CSI-RS resource set 2 is 0, and the indication set sequence number of the usage of the CSI-RS resource in the CSI-RS resource set 6 is 1. In this way, the terminal may determine the corresponding indication set sequence numbers of all configured CSI-RS resources.

The terminal determines the sequence numbers of the indication sets corresponding to the CSI-RS resources, so that the availability of the CSI-RS resources can be determined according to the availability indication in the DCI. For example, when the paging DCI is used to indicate availability, the terminal may determine, according to the indication information, whether the indicated CSI-RS resource has an actual CSI-RS transmission on a CSI-RS transmission opportunity in a number of paging cycles or a default paging cycle period starting from a next paging cycle in which the current paging DCI is received. Or when the paging advanced indication DCI is used for indicating the availability, the terminal can determine whether the indicated CSI-RS resource has actual CSI-RS transmission on the CSI-RS transmission opportunity in the time slot before the pager corresponding to the advanced indication information according to the indication information.

Fig. 2 is a flow chart illustrating a method performed by a user equipment in another embodiment according to the invention.

As shown in fig. 2, in step 201, the terminal receives first configuration information, and determines CSI-RS resources and their transmission opportunities in the time domain.

In step 202, the terminal receives second indication information indicating availability of at least one CSI-RS resource for use by an idle state or inactive state user.

In step 203, the terminal determines the corresponding indication bit in the second indication information according to the position of the CSI-RS transmission opportunity, and determines the availability of the CSI-RS resource.

The steps in this embodiment will be specifically described below.

In the network, the base station can configure a plurality of CSI-RS resources or resource sets through high-level signaling for idle state or inactive state user reception. The terminal may determine transmission of the CSI-RS signal on the transmission opportunity according to the CSI-RS resource configurations and the associated availability indication and receive the associated signal.

In the network, the availability of CSI-RS resources may be indicated by physical layer signaling. For example, indicated by paging some bit fields in DCI; or, the paging advance indication information is indicated by a bit field in the paging advance indication information; it is also possible to use bit field indications in other physical layer signaling, here described as paging DCI. There are several bits in the paging DCI that may be used for this indication information, e.g. 6 reserved bits in a cell using the non-shared spectrum. In a cell using a shared spectrum, paging DCI has 8 reserved bits. These bits are not used by R16 and previous versions of the terminal and thus may be used to indicate the availability of CSI-RS. In addition, there are also 4 reserved bits in the Short Messages field in the paging DCI that are not used by R16 and previous versions of the terminal, which can also be used to indicate the availability of CSI-RS. Thus, the terminal may indicate availability of the CSI-RS using bits in the paging DCI. Similarly, the terminal may also indicate the availability of CSI-RS according to bits in other physical layer signaling.

Several CSI-RS resources or resource sets may be configured in the network, using the same or different SSBs as their reference signals, to serve different terminals in the cell. The terminal receives availability indication information sent by the physical layer signaling, and may include indications of multiple CSI-RS resources. The terminal needs to determine which resources or resource sets are available for which bits indicate. And the terminal determines the availability of a plurality of transmission opportunities of the corresponding CSI-RS resources in the time domain according to the availability indication information. These CSI-RS resources may use the same or different SSB sequence numbers as reference signals.

The terminal needs to determine how many bits in a received indication signaling are used to indicate the availability of CSI-RS resources, i.e. determine the indicated capacity.

Optionally, the terminal determines the capacity of the availability indication corresponding to the bit indication according to the maximum number of bits available for the availability indication in the DCI and the smaller value of the number of CSI-RS resource sets in the system configuration. For example, a maximum of 6 bits in the DCI may be used to indicate availability of CSI-RS resources. 4 CSI-RS resource sets are configured in the system message, the terminal determines that the capacity of the indication information is 4, and 4 bits are used for indicating the availability of relevant CSI-RS resources.

And the terminal determines the availability of the CSI-RS resource set according to the position of the transmission opportunity of the CSI-RS resource. Optionally, the terminal determines an indication bit of the CSI-RS resource in the indication information according to the CSI-RS transmission opportunity sequence number before the reference position, and determines availability of the CSI-RS resource according to the indication bit. Accordingly, if a sequence number determined by a certain CSI-RS exceeds a capacity of one indication information, availability information of the CSI-RS is not indicated in the indication information.

The terminal can determine a plurality of opportunities for transmitting the CSI-RS signal in a time domain according to the configuration of the periodical CSI-RS resource in the system message; correspondingly, the terminal can also determine the corresponding CSI-RS resource according to the transmission opportunity of the CSI-RS. Optionally, the terminal uses the PDCCH of the physical layer signaling indicating the availability as a reference position, and determines the availability of the CSI-RS resource according to the position relationship between the transmission opportunity of the CSI-RS resource and the physical layer signaling indicating the availability.

For a specific example, when paging DCI is used as physical layer signaling indicating availability of CSI-RS resources, a terminal may determine several CSI-RS transmission opportunities corresponding to CSI-RS resources configured by a system message before a symbol where a PDCCH carrying the paging DCI is located. And the terminal determines the availability of CSI-RS resources corresponding to the N transmission opportunities according to bits in the indication signaling according to the capacity N of the indication signaling. The symbol position of the PDCCH is herein the symbol position determined by CORESET used for transmitting the PDCCH.

As shown in fig. 3, assuming that the capacity for indicating the availability of CSI-RS resources in paging DCI is 4 bits, the terminal may determine the availability of CSI-RS resources corresponding to 4 CSI-RS transmission opportunities before a symbol indicated by the availability signaling as a PDCCH channel of the DCI. For example, in fig. 3, the transmission opportunities determined by the terminal according to the reference position are respectively transmission opportunities corresponding to CSI-RS resources 0/1/2/3, and then the terminal sequentially determines the availability of the 4 CSI-RS resources over a period of time according to the indication bits in the indication information. For example, the terminal may determine the availability of transmission opportunities corresponding to these CSI-RS resources over K consecutive paging cycles after the pager where the paging DCI is received.

When the paging DCI is used to transmit the availability indication information, the terminal may have multiple paging PDCCH detection opportunities (monitoring occasion, MO) on one Paging Opportunity (PO). And the terminal respectively determines the CSI-RS resources corresponding to the indication bits in the related paging DCI according to the symbol positions of the PDCCH on the detected MO. One example is shown in fig. 4, where the terminal has 4 detection opportunities for paging DCI on a paging opportunity of one paging cycle for beam reception corresponding to different SSB sequence numbers. The terminal may select one or more PDCCHs for detection. When receiving DCI carrying the CSI-RS resource availability indication information on one PDCCH detection opportunity, the terminal can determine the availability of the CSI-RS resource related to the position of the PDCCH detection opportunity. As illustrated in the figure, when one DCI indicates availability of 4 CSI-RS resources at most, the DCI detected on the first MO indicates CSI-RS 3/2/1/0, the DCI detected on the second MO indicates CSI-RS 4/3/2/1, and so on.

The CSI-RS resources may be configured in the system message in the form of a CSI-RS resource set. The CSI-RS resource set may comprise a plurality of CSI-RS resources, each having several transmission opportunities in the time domain according to an associated configuration. Optionally, the terminal determines availability of CSI-RS resources in the CSI-RS resource set according to a position of a transmission opportunity of the first CSI-RS resource in the resource set. The first CSI-RS resource is the first CSI-RS resource in one period in the CSI-RS resource set. As a specific example, as shown in fig. 5, two CSI-RS resource sets each contain 4 CSI-RS resources. When determining the transmission opportunity, the terminal determines the availability of the CSI-RS resources in the CSI-RS resource set according to the transmission opportunity position of the first CSI-RS resource in the resources of a certain CSI-RS resource set.

Optionally, the terminal determines availability of CSI-RS resources corresponding to each bit in the indication signaling for the reference position according to the CSI-RS transmission opportunity with the same QCL reference signal as before the indication signaling. According to a predetermined rule, the terminal may use the reference position and availability of CSI-RS resources corresponding to a plurality of CSI-RS transmission opportunities in front of the reference position. Or, the terminal may refer to the position and availability of CSI-RS resources corresponding to a plurality of CSI-RS transmission opportunities. As a specific example, as shown in fig. 6, the terminal determines a transmission opportunity using the same QCL reference signal CSI-RS resource for the first one located before the PDCCH according to the QCL reference signal of the PDCCH channel where the received availability indication is located. Optionally, the terminal uses the reference position as the reference position to determine the reference position and availability of CSI-RS resources corresponding to the plurality of preceding CSI-RS transmitters. Optionally, the terminal uses the reference position as the reference position to determine availability of CSI-RS resources corresponding to the plurality of CSI-RS transmitters at the back.

Paging advance indication (paging early indication, PEI) DCI may be used in the network to indicate whether the terminal needs to detect the corresponding paging PDCCH in the corresponding paging opportunity. Therefore, the paging advanced indication DCI can also carry indication information of the availability of the CSI-RS resources to indicate whether the available CSI-RS is available for user reception before the pager corresponding to the advanced indication.

Optionally, when the paging advanced indication DCI is used to indicate availability of CSI-RS resources, the terminal determines, for the reference location, availability of CSI-RS resources indicated in the indication information according to a paging PDCCH detection opportunity using the same reference signal in a CSI-RS transmission opportunity and a paging opportunity corresponding to the advanced indication.

Optionally, when the paging advanced indication DCI is used to indicate availability of CSI-RS resources, the terminal determines, according to the CSI-RS transmission opportunity and the first paging PDCCH detection opportunity in the paging opportunities corresponding to the advanced indication, the availability of CSI-RS resources indicated in the indication information for the reference position.

Next, a user equipment that can perform the method performed by the user equipment described in detail above of the present invention as a modification will be described with reference to fig. 7.

Fig. 7 is a block diagram showing a user equipment UE according to the present invention.

As shown in fig. 7, the user equipment UE60 includes a processor 601 and a memory 602. The processor 601 may include, for example, a microprocessor, microcontroller, embedded processor, or the like. The memory 602 may include, for example, volatile memory (such as random access memory RAM), a Hard Disk Drive (HDD), non-volatile memory (such as flash memory), or other memory. The memory 602 has stored thereon program instructions. Which, when executed by the processor 601, may perform the above-described method performed by the user equipment as described in detail herein.

The method and the apparatus involved of the present invention have been described above in connection with preferred embodiments. It will be appreciated by those skilled in the art that the methods shown above are merely exemplary and that the embodiments described above can be combined with one another without contradiction. The method of the present invention is not limited to the steps and sequences shown above. The network nodes and user equipment shown above may comprise further modules, e.g. modules that may be developed or developed in the future that may be used for a base station, MME, or UE, etc. The various identifiers shown above are merely exemplary and are not intended to be limiting, and the present invention is not limited to the specific cells that are examples of such identifiers. Many variations and modifications may be made by one of ordinary skill in the art in light of the teachings of the illustrated embodiments.

It should be understood that the above-described embodiments of the present invention may be implemented by software, hardware, or a combination of both software and hardware. For example, the various components within the base station and user equipment in the above embodiments may be implemented by a variety of means including, but not limited to: analog circuit devices, digital Signal Processing (DSP) circuits, programmable processors, application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs), programmable logic devices (CPLDs), and the like.

In this application, the "base station" may refer to a mobile communication data and control switching center with a larger transmission power and a wider coverage area, including functions of resource allocation scheduling, data receiving and transmitting, and the like. "user equipment" may refer to user mobile terminals including, for example, mobile phones, notebooks, etc., that may communicate wirelessly with a base station or micro base station.

Furthermore, embodiments of the invention disclosed herein may be implemented on a computer program product. More specifically, the computer program product is one of the following: has a computer readable medium encoded thereon with computer program logic that, when executed on a computing device, provides relevant operations to implement the above-described aspects of the invention. The computer program logic, when executed on at least one processor of a computing system, causes the processor to perform the operations (methods) described in embodiments of the invention. Such an arrangement of the present invention is typically provided as software, code and/or other data structures arranged or encoded on a computer readable medium, such as an optical medium (e.g., CD-ROM), floppy disk or hard disk, or other a medium such as firmware or microcode on one or more ROM or RAM or PROM chips, or as downloadable software images in one or more modules, shared databases, etc. The software or firmware or such configuration may be installed on a computing device to cause one or more processors in the computing device to perform the techniques described by embodiments of the present invention.

Furthermore, each functional module or each feature of the base station apparatus and the terminal apparatus used in each of the above embodiments may be implemented or performed by a circuit, which is typically one or more integrated circuits. Circuits designed to perform the functions described in this specification may include a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC) or a general purpose integrated circuit, a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components, or any combination thereof. A general purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller, or state machine. The or each circuit may be configured by digital circuitry or may be configured by logic circuitry. In addition, when advanced technologies capable of replacing the current integrated circuits are presented due to advances in semiconductor technology, the present invention can also use integrated circuits obtained using the advanced technologies.

While the invention has been shown above in connection with the preferred embodiments thereof, it will be understood by those skilled in the art that various modifications, substitutions and changes may be made thereto without departing from the spirit and scope of the invention. Accordingly, the invention should not be limited by the above-described embodiments, but by the following claims and their equivalents.

Claims

1. A method performed by a user equipment, UE, comprising:

acquiring first configuration information, wherein the first configuration information is CSI-RS resource configuration information for idle or inactive users;

acquiring second indication information, wherein the second indication information is information indicating availability of at least one CSI-RS resource; and

and determining the corresponding relation between the CSI-RS resources corresponding to the first configuration information and the indication information bits in the second indication information, and determining the availability of the CSI-RS resources corresponding to the first configuration information according to the bits in the second indication information.

2. The method of claim 1, wherein,

the corresponding relation between the CSI-RS resources and the indication information bits in the second indication information is determined by determining an indication set sequence number according to the CSI-RS resource configuration information in the first configuration information; and determining bits used for indicating the availability of the CSI-RS resources in the second indication information according to the indication set sequence number.

3. The method of claim 2, wherein,

the indication set sequence number is generated according to at least one of the sequence of the resource set configuration information corresponding to the CSI-RS resource in the system configuration information, the indication set identification corresponding to the CSI-RS resource and the reference signal sequence number used by the CSI-RS resource.

4. A method according to claim 2 or 3, wherein the quasi co-located QCL using CSI-RS resources refers to SSB sequence numbers to generate low order bits indicating set sequence numbers; and generating high order bits of the indication set sequence number by using the indication set identification corresponding to the CSI-RS resource.

5. A method according to claim 2 or 3, wherein the indication set sequence number used by the CSI-RS resource is determined according to the order in the system message of the resource set configuration information of the same QCL reference SSB sequence number used by the resource set configuration information corresponding to the CSI-RS resource.

6. The method of claim 1, wherein the determining the correspondence between the CSI-RS resource and the bit in the second indication information is determining a sequence number of the bit in the second indication information of the indication bit of the CSI-RS resource according to the position of the transmission opportunity of the CSI-RS resource corresponding to the first configuration information.

7. The method of claim 6, wherein a sequence number of the indication bits of the CSI-RS resource in the second indication information is determined according to a reference position with a symbol of a PDCCH channel in which the second indication signaling is located.

8. The method of claim 6, wherein a sequence number of indication bits of the CSI-RS resource in the second indication information is determined for the reference position according to a CSI-RS transmission opportunity having the same QCL reference signal as the second indication signaling.

9. The method of claim 6, wherein a sequence number of indication bits of the CSI-RS resource in the second indication information is determined for the reference location according to a paging detection opportunity associated with the second indication signaling.

10. A user equipment, comprising:

a processor; and

a memory in which instructions are stored,

wherein the instructions, when executed by the processor, perform the method according to any one of claims 1 to 9.