CN117998392A

CN117998392A - WUS transmission method, device, user equipment and storage medium

Info

Publication number: CN117998392A
Application number: CN202211371984.5A
Authority: CN
Inventors: 洪琪; 李�根
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2024-05-07
Also published as: WO2024093913A1

Abstract

The present application discloses a WUS transmission method, apparatus, user equipment and storage medium, and belongs to the field of communication technology. The WUS transmission method of an embodiment of the present application includes: a UE detects first information of an SSB sent by an energy-saving base station, the first information is obtained by the UE from a service cell where the UE is located, and the first information includes: the configuration of the first SSB of the energy-saving base station, and the mapping relationship between the first SSB and the WUS; the UE sends the WUS according to the first information.

Description

WUS transmission method, device, user equipment and storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to a WUS transmission method, a WUS transmission device, user equipment and a storage medium.

Background

For a UE (User Equipment) in a connected state, measurements are performed on surrounding cells to estimate the signal quality of the cells. In this process, the protocol specifies that the UE needs to report the measured cell identity and information such as the synchronization signal block (Synchronization Signal Block, SSB) index (index) to the serving cell, so as to better manage mobility.

However, since the SSB index is obtained in the physical broadcast channel (Physical Broadcast Channel, PBCH) and the PBCH-Demodulation reference signal (Demodulation REFERENCE SIGNAL, DMRS), and the base station in the power saving mode (hereinafter referred to as the power saving base station) does not include the PBCH, the SSB index is not obtained for the power saving base station transmitting the light SSB; if the UE cannot obtain the uplink synchronization information and the beam information of the energy-saving base station through the serving base station, how to transmit a Wake-Up Signal (WUS) on a correct beam by the UE is a problem to be solved if the UE is to Wake Up the energy-saving base station (transmit a normal SSB).

Disclosure of Invention

The embodiment of the application provides a WUS transmission method, a device, user equipment and a storage medium, which can solve the problem of how to transmit WUS on a correct wave beam by UE.

In a first aspect, a WUS transmission method is provided, the method comprising: the UE detects first information of SSB sent by the energy-saving base station, wherein the first information is obtained by the UE from a service cell where the UE is located, and the first information comprises: configuration of a first SSB of the energy-saving base station and a mapping relation between the first SSB and the WUS; the UE transmits WUS according to the first information.

In a second aspect, there is provided a WUS transmission apparatus, for use in a UE, comprising: the device comprises a detection module and a sending module. The detection module is configured to detect first information of SSB sent by the energy-saving base station, where the first information is obtained by the UE from a serving cell where the UE is located, and the first information includes: configuration of a first SSB of the energy-saving base station and mapping relation between the first SSB and the WUS. And the sending module is used for sending the WUS according to the first information detected by the detecting module.

In a third aspect, there is provided a UE comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the method according to the first aspect.

In a fourth aspect, a UE is provided, including a processor and a communication interface, where the processor is configured to detect first information of SSB sent by an energy-saving base station, where the first information is obtained by the UE from a serving cell where the UE is located, and the first information includes: configuration of a first SSB of the energy-saving base station and mapping relation between the first SSB and the WUS. The communication interface is used for sending the WUS according to the first information.

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

In a sixth aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor for running a program or instructions to implement the method of the first aspect.

In a seventh 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 WUS transmission method according to the first aspect.

In the embodiment of the application, the UE can detect the first information of the SSB sent by the energy-saving base station, and send WUS according to the first information, where the first information is obtained by the UE from the serving cell where the UE is located, and the first information includes the configuration of the first SSB of the energy-saving base station and the mapping relationship between the first SSB and WUS. In the scheme, the UE can detect the SSB information according to the first information acquired from the serving cell where the UE is located, and the first information comprises the SSB configuration of the energy-saving base station and the mapping relation between the SSB and the WUS, namely, the UE can acquire the SSB configuration and the mapping relation between the SSB and the WUS from the detected first information so as to execute the transmission of the WUS, so that the UE can correctly transmit the WUS on a beam through the detected SSB configuration of the energy-saving base station and the mapping relation between the SSB and the WUS under the condition that the UE cannot acquire the SSB index of the energy-saving base station, and the energy-saving base station can correctly receive the WUS.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

FIG. 2 is a schematic diagram of the structure of an SSB provided by the related art;

fig. 3 is a schematic diagram of an example of bits included in a PBCH provided by the related art;

FIG. 4 is a schematic diagram of an example in which SSB provided by the related art is transmitted to different directions by means of a beam;

Fig. 5 is a flowchart of a WUS transmission method according to an embodiment of the present application;

FIG. 6 is one example schematic diagram of a time-frequency resource relationship between SSB and WUS provided by an embodiment of the present application;

FIG. 7 is a second exemplary diagram of a time-frequency resource relationship between SSB and WUS according to an embodiment of the present application;

FIG. 8 is a second flowchart of a WUS transmission method according to an embodiment of the present application;

FIG. 9 is a third flowchart of a WUS transmission method according to an embodiment of the present application;

Fig. 10 is a schematic structural diagram of a WUS transmission device according to an embodiment of the present application;

fig. 11 is a schematic hardware structure of a communication device according to an embodiment of the present application;

fig. 12 is a schematic hardware structure of a UE according to an embodiment of the present application.

Detailed Description

The technical solutions of 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, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements 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 "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, 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 should be 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, but 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 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 Radio (NR) system for exemplary purposes and NR terminology is used in much of the following description, but these techniques may also be applied to applications other than NR system applications, such as 6 th Generation (6G) communication systems.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a Mobile phone, a tablet Computer (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 Computer, 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 (Wearable 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, a furniture, etc.), a game machine, a Personal Computer (Personal Computer, a PC), a teller machine, or a self-service machine, etc., 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.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may include an access network device or a core network device, where 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 embodiment 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 concepts and/or terms related to the WUS transmission method, apparatus, user equipment and storage medium provided in the embodiments of the present application are explained below.

1. SSB structure

The process of initial search is completed by SSB. SSB consists of PSS, SSS, PBCH, DMRS within 4 consecutive orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols, which can be used for downlink synchronization.

As shown in fig. 2, the structure of the SSB includes: PSS (NR-PSS), SSS (NR-SSS), PBCH (NR-PBCH), PBCH-DMRS. Wherein the functions of PSS and SSS are to achieve symbol (symbol) level synchronization and to accomplish physical layer cell identification (PHYSICAL CELL IDENTITY, PCI)Is determined by the above-described method. The PBCH contains a master information block (Master Information Block, MIB) of the cell and part of the remaining information. The PBCH-DMRS contains a portion of SSB-index information (lower three bits).

2、PBCH

Because the internal structure of the SSB is protocol standardized, when the UE searches for a synchronization signal at a specific synchronization frequency point, it may attempt to decode the SSB. Among them, the most important information contained in SSB is MIB. Wherein, the MIB comprises:

system frame Number (SYSTEM FRAME Number): the complete frame number needs 10 bits, while the frame number in the Payload (Payload) of the MIB has only the high-order 6 bits, and the low-order 4 bits are transmitted in the non-MIB bits in the PBCH transport block;

Subcarrier spacing (Sub-CARRIER SPACING Common) of downlink signal in initial access procedure: a subcarrier spacing indicating SIB 1/OSI/Msg 2/Msg 4/paging message for initial access;

SSB subcarrier offset (SSB-Sub Carrier Offset): the number of subcarrier spacings between the lowest subcarrier of the SSB and the PRB nearest thereto;

DMRS-Type a-Position: PDSCH DMRS configuration of reference signals;

Physical downlink control channel (Physical Downlink Control Channel, PDCCH) -ConfigSIB1: configuration of SIB1 PDCCH, including control resource set (CORESET) and search space configuration;

Cell inhibition information: an access control parameter of the RRC identifying whether the cell is barred;

Cell reselection information (intra FreqReselection) for intra-frequency cells: an RRC access control parameter identifying whether the cell allows the same frequency reselection;

spare: the bit is reserved.

In addition, the PBCH contains some other information besides MIB information, as shown in fig. 3, bits contained in the PBCH:

a+1 to a+4: adding 4bit frame number information, obtaining the lower 4bit of the system frame number, and combining the 6bit information of the system frame number in the front MIB to obtain the whole 10bit frame number information;

a+5: adding a field information bit indicating whether it is a first field or a second field;

A+6 to a+8: if the largest SSB Index l=64 (i.e. F >6 GHz), a+6 to a+8 identify the upper 3 bits of SSB Index, otherwise a+6: kssb high 1, A+7/A+8: the bit is reserved.

3. Preamble (preamble)

After the cell search procedure and system information is acquired, the UE has acquired downlink synchronization with the cell, at which point the UE can receive downlink data. However, the UE can perform uplink transmission only when it acquires uplink synchronization with the cell. The UE establishes a connection with the cell and acquires uplink synchronization through a random access procedure (Random Access Procedure). After the random access procedure is successful, the UE is in a radio resource control (Radio Resource Control, RRC) CONNECTED state (rrc_connected) state and can perform normal uplink and downlink transmission with the network. The main purpose of random access is: (1) obtaining uplink synchronization; (2) A unique identity, cell-Radio Network Temporary Identifier, C-RNTI, is assigned to the UE.

The first step of the random access procedure is that the UE transmits a random access preamble (random access preamble). The role of the preamble is to tell the base station that there is a random access request and to enable the base station to estimate its transmission delay with the UE so that the base station calibrates the uplink timing and informs the UE of the calibration information via a timing advance command (TIMING ADVANCE command) in the random access response (Random Access Response, RAR).

Wherein, the preamble sequence is generated by cyclic shift of root ZC sequence (root Zadoff-Chu sequence). Each Physical Random access channel (Physical Random ACCESS CHANNEL, PRACH) defines 64 preambles on a time-frequency opportunity, and the 64 preambles are numbered according to the increasing order of the cyclic shift n_cs of the logical root sequence, and then according to the increasing order of different logical root sequences. If 64 preambles cannot be obtained based on a single root sequence by cyclic shifting, the remaining preamble sequences are generated by the root sequence corresponding to the next index until all of the 64 preambles are generated.

4. Beam

Because of the lack of low frequency resources, 5G NR uses a high frequency band such as millimeter wave, and because propagation loss of the high frequency band is greater than that of the low frequency band, its coverage distance is inferior to that of LTE. In order to solve the problem, one solution is that 5G implements enhancement of signals by a multi-antenna Beam Forming (Beam Forming) manner, and further implements enhancement of coverage. Beamforming is currently a signal processing technique that uses an array of sensors to directionally transmit and receive signals. The beam forming technology enables signals of certain angles to obtain constructive interference and signals of other angles to obtain destructive interference by adjusting parameters of basic units of the phased array, so that an antenna beam is directed in a specific direction. The establishment of the downlink beam is generally determined by SSB and channel state Information reference signal (CHANNEL STATE Information-REFERENCE SIGNAL, CSI-RS). As shown in fig. 4, SSB is taken as an example: due to the narrower beam, the same SSB is sent to different directions in NR in the form of a time division duplex (Time Division Duplexing, TDD) so that the SSB can be received by UEs in all directions.

5. Cell search

The UE needs to use initial search when turning on or performing cell handover, and the purpose of the UE is to obtain downlink synchronization of a cell:

(1) Time synchronization detection (detecting a synchronization signal position, a Cyclic Prefix (CP) type, a cell ID number, etc.);

(2) Frequency synchronization detection (frequency offset estimation is performed by using signals such as PSS, SSS and the like, and then frequency offset is corrected). Of course, one of the most important functions of the initial search is to find a network that can be used, i.e. the UE performs a blind search of the whole network band according to its supported operating band and the synchronization signal fast number (GSCN) specified by the protocol.

The UE can search for a cell only if it enters the coverage of that cell. The UE not only needs to search for a cell when it is powered on, but also can search for a cell (measure SSB) continuously in order to support mobility, synchronize and estimate the reception quality of the cell, so as to determine whether to perform handover (when the UE is in rrc_connected state) or cell re-selection (when the UE is in rrc_idle state or rrc_inactive state).

NR altogether defines 1008 different PCI' s Wherein PSS corresponds to/>For 3 candidate m-sequences, partial cell identification (cell ID) information is carried. SSS correspondence/>And carrying partial cell ID information for 336 candidate m sequences.

6. Cell measurement and reporting

In a mobile communication network, when a UE is to switch to a cell with stronger signal and a new carrier (CC) is to be added in carrier aggregation, it is required to measure the signal strength or Quality (matrix, i.e. reference signal received Power (REFERENCE SIGNAL RECEIVED Power, RSRP) or reference signal received Quality (REFERENCE SIGNAL RECEIVING Quality, RSRQ)) of a serving cell and a neighboring cell, which requires timely and accurate measurement of the UE to maintain the radio link Quality.

An SS/PBCH block (SSB) constituted by a Synchronization Signal (SS) and a Physical Broadcast Channel (PBCH) is introduced in the NR network as a cell (signal) measurement object. The number of SSBs in one pulse (Burst) depends on the operating frequency. For example, SSB is 4 at an operating frequency (fc) <3GHz (FR 1); SSB is 8 at an operating frequency (fc) =3 GHz (FR 1) <6GHz (FR 1); and SSB is 64 when the operating frequency (fc) >6GHz (FR 2).

The period of the cell SSB may be configured to 5,10,20,40,80 or 160ms; the UE does not need to make periodic measurements of the cell signals because the SSB can configure an appropriate measurement period according to the channel conditions. This may help to avoid unnecessary measurements and reduce the energy consumption of the UE. The protocol introduces an SSB-based RRM measurement time configuration window (called SMTC window) through which the UE obtains the measurement period and time of SSBs.

A) For the serving cell, the common information (ServingCellConfigCommon) of the serving cell configures the SSB for the UE, and firstly, SSBs to be measured in one SSB burst, the period and the transmission power of the SSBs are configured for the UE by means of a bit map (bitmap).

From a time domain perspective, the RRC of the SSB configures the measurement time configuration of the synchronization signal block (SSB-Measurement Timing Configuration, SSB-MTC), at which time the UE should go to measure the SSB, where the period and offset of the SSB measurement are configured, where the period is from 5 subframes (subframes) to 160 subframes, and the length of time measured in each period is 1subframe to 5 subframe.

B) SMTC (SSB-MTC) measurements

SMTC is configured for each bin, i.e. if the frequency bands of both neighbors are the same, their SMTC configuration is the same. If a cell wishes to modify the SMTC configuration, the SMTC configuration for the same frequency band as it does may be changed.

To match different synchronization signal block periods for different cells, two sets of SMTC parameters are allowed to be configured for a given cell measurement, SMTC2, when the connection state is measured on the same frequency. For example, in addition to the basic SMTC configuration, a set of more dense measurement windows may be reconfigured for use by the serving cell and the cells indicated in the particular cell list.

SMTC2 is also the same frequency band as SMTC 1. If SMTC2 is configured, only a very small fraction of cells are measured according to SMTC2, and SMTC2 is introduced because of different cell coverage issues (e.g. SMALL CELL). Also, the period of SMTC1 must be a multiple of the period of SMTC 2.

C) Measurement reporting

After the UE measures the SSB of the neighbor cell, the measured result needs to be sent to the serving cell. The reporting configuration comprises the following steps:

triggering reporting principle: periodically reporting or a penalty rule for a series of events;

Reference signal (REFERENCE SIGNAL, RS) type: SSB or channel state Information reference signal (CHANNEL STATE Information-REFERENCE SIGNAL, CSI-RS);

Measurement report form: such as the reported maximum number of cells and number of beams.

The network may configure the UE to report information based on SSB:

Measurement results for each SSB;

Measurement results for each cell;

Based on SSB Index measurements.

7. Down wake-up signal (DL WUS)

In the 5G system, in order to further improve the power saving performance of the UE, a PDCCH-based WUS was introduced. The role of WUS is to tell the UE whether it needs to listen to the PDCCH during the onDuration of a specific discontinuous reception (Discontinuous Reception, DRX). When there is no data, the UE may not need to monitor the PDCCH during onDuration, which is equivalent to the UE being in a sleep state in the whole DRX Long cycle, so as to further save power.

The WUS signal is downlink control information (Downlink Control Information, DCI), abbreviated as DCP (DCI WITH CRC scrambled by PS-RNTI), where the PS-RNTI is a radio network temporary identity (Radio Network Temporary Identifier, RNTI) allocated by the network for the UE and dedicated to power saving characteristics, and the DCI scrambled with the RNTI carries the wake-up/sleep indication of the network for the UE. The UE decides whether to start an onDuration timer for the next DRX cycle and whether to perform PDCCH monitoring according to the indication.

8、Light SSB

In order to achieve energy saving at the base station end, it is proposed to use the base station in energy saving mode to send only dedicated reference signal (DEDICATED REFERENCE SIGNAL, DRS) information. The DRS may be part of an existing SSB. That is, only PSS and SSS may be transmitted, or only PSS or SSS may be transmitted.

The WUS transmission method provided by the embodiments of the present application is described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.

Considering that the power saving base station sends a light SSB, SSB index cannot be obtained. If the UE cannot obtain the uplink synchronization information and the beam information of the energy-saving base station through the serving base station at this time, if the UE wants to wake up the energy-saving base station (send a normal SSB), how to enable the UE to send WUS on a correct beam, and the energy-saving base station can correctly receive WUS has not yet had a solution.

The embodiment of the application provides a WUS transmission method, wherein a UE (user equipment) can detect first information of an SSB (subscriber identity module) sent by an energy-saving base station and send WUS according to the first information, the first information is obtained by the UE from a service cell where the UE is located, and the first information comprises configuration of the first SSB of the energy-saving base station and a mapping relation between the first SSB and the WUS. In the scheme, the UE can detect the SSB information from the first information acquired by the serving cell where the UE is located, and the first information comprises the SSB configuration of the energy-saving base station and the mapping relation between the SSB and the WUS, namely, the UE can acquire the SSB configuration and the mapping relation between the SSB and the WUS from the detected first information so as to execute the transmission of the WUS, so that the UE can correctly transmit the WUS on a correct wave beam through the detected SSB configuration of the energy-saving base station and the mapping relation between the SSB and the WUS under the condition that the UE cannot acquire the SSB index of the energy-saving base station.

The embodiment of the application provides a WUS transmission method, and fig. 5 shows a flowchart of the WUS transmission method provided by the embodiment of the application. As shown in fig. 5, the WUS transmission method provided by the embodiment of the present application may include the following steps 201 and 202.

Step 201, the UE detects first information of SSB sent by the energy-saving base station.

In the embodiment of the present application, the first information is obtained by the UE from the serving cell where the UE is located. The first information includes: configuration of a first SSB of the energy-saving base station and mapping relation between the first SSB and the WUS.

It can be understood that in the embodiment of the present application, the energy-saving base station (the base station in the energy-saving mode) may send SSB, and when detecting SSB sent by the energy-saving base station (e.g. the neighboring energy-saving base station), the UE may detect according to SSB information (e.g. the first information) obtained from the serving cell where the UE is located, so as to obtain the SSB configuration of the energy-saving base station and the mapping relationship between SSB and WUS from the first information, so as to send WUS to the energy-saving base station.

It should be noted that, in the embodiment of the present application, the first SSB is an SSB sent by the energy-saving base station, that is, a light SSB.

Optionally, in an embodiment of the present application, the light SSB may include at least one of the following: primary synchronization signal (Primary Synchronization Signal, PSS), secondary synchronization signal (Secondary Synchronization Signal, SSS), pss+payload (payload), sss+payload, pss+sss+payload.

Optionally, in the embodiment of the present application, the first information may be configured for the UE by a serving cell where the UE is located. Or the first information may be configured by the energy-saving base station and sent to the serving cell where the UE is located, so that the serving cell where the UE is located is notified to the UE.

Optionally, in the embodiment of the present application, the energy-saving base station configures a mapping relationship between the first SSB (light SSB) and the WUS; the service base station acquires the mapping relation and informs the UE of the mapping relation.

Optionally, in the embodiment of the present application, the first information is obtained by a downlink signal or RRC signaling sent by the UE through a serving cell where the UE is located, that is, the first information is sent to the UE by the UE through the downlink signal or RRC signaling.

Optionally, in an embodiment of the present application, the downlink signal includes at least one of the following: SSB, master information block (Master Information Block, MIB), system information block (System Information Block, SIB), PDCCH, medium access Control-Control Element (MEDIA ACCESS Control-Control Element, MAC-CE).

Optionally, in an embodiment of the present application, the configuration of the first SSB of the energy-saving base station may include at least one of the following: identification/index information of SSB, SSB period, SSB time domain location, SSB frequency domain location, SMTC configuration, index configuration actually transmitted by SSB.

Optionally, in the embodiment of the present application, the configuration of the first SSB of the energy-saving base station is a specific configuration, and the mapping relationship between the first SSB and the WUS is a specific relationship.

Optionally, in an embodiment of the present application, the first SSB includes at least one SSB. The mapping relation between the first SSB and the WUS is as follows: each SSB of the at least one SSB has a fixed time-frequency resource relationship with its corresponding WUS.

It should be noted that, each SSB and its corresponding WUS can be understood as follows: at least one SSB corresponds to at least one WUS, and each SSB corresponds to one WUS, respectively. For example, at least one SSB is SSB 0,1,2,3, at least one WUS is WUS 0,1,2,3, then SSB 0 corresponds to WUS 0, SSB 1 corresponds to WUS 1, SSB 2 corresponds to WUS2, SSB 3 corresponds to WUS3, there is a fixed time-frequency resource relationship between SSB 0 and WUS 0, there is a fixed time-frequency resource relationship between SSB 1 and WUS 1, there is a fixed time-frequency resource relationship between SSB 2 and WUS2, and there is a fixed time-frequency resource relationship between SSB 3 and WUS 3.

Optionally, in an implementation manner of the embodiment of the present application, each SSB of the at least one SSB has a fixed time-frequency resource relationship with its corresponding WUS, including: a first resource case and a second resource case.

Wherein, the first resource condition is: the time domain resources of at least one SSB are different, and at least one symbol position is not identical, wherein the at least one symbol position is the symbol position of the time domain resource of at least one SSB in different time slots.

The second resource case is any one of the following:

Each WUS of the at least one WUS has a fixed time domain offset from its corresponding SSB;

Different WUS in at least one WUS have different time domain positions, and the time domain positions of the different WUS are not exactly the same in symbol positions of different slots;

different WUS of the at least one WUS have different time domain locations or frequency domain locations.

It should be noted that, the difference in the time domain resources where the at least one SSB is located may be understood as: at least one SSB on different symbols of the same slot; or the time slots in which at least one SSB is located are different.

In addition, the time slots in which at least one SSB is located are different, which means that the time slots in which at least one SSB is located are not identical (i.e., are completely different or partially different); and when the time slot parts where at least one SSB is located are different, if the time slot parts where at least one SSB is located are the same, SSBs in the same time slot are on different symbols of the same time slot. For example, SSBs 0,1 in SSBs 0,1,2,3 are on different symbols of the same time slot (e.g., time slot 1), and SSBs 2,3 are on different symbols of the same time slot (e.g., time slot 2).

It should be noted that, the at least one symbol positions are not identical, which is understood as follows: in the time slot where at least one SSB is located, symbol positions where SSBs in different time slots are located are not identical (i.e., are completely different or partially different).

Illustratively, at least one slot is assumed to include slot1, slot2, and at least one SSB includes SSBs 0,1,2,3. The symbol positions of SSB in slot1 and SSB in slot2 are not identical, for example, the symbol positions of SSB 0 in slot1 are symbol 0 and symbol 1, the symbol positions of SSB 1 in slot1 are symbol 3 and symbol 4, the symbol positions of SSB2 in slot2 are symbol 2 and symbol 3, and the symbol positions of SSB 3 in slot2 are symbol 5 and symbol 6.

It should be noted that, the different time domain positions of different WUS in the at least one WUS may be understood as: at least one WUS is on different symbols of the same slot; or the time slot in which at least one WUS is located is different; or a part of WUS in at least one WUS is on different symbols of the same time slot and another part of WUS in at least one WUS is in a different time slot.

The fact that the time domain positions of the different WUS are not identical in the symbol positions of the different slots can be understood as follows: in the time slot where at least one WUS is located, symbol positions where WUS in different time slots are located are not identical (i.e. completely different or partially different).

Illustratively, at least one slot is assumed to include slot1, slot2, and at least one WUS includes WUS 0,1,2,3. The symbol positions of WUS in slot1 and WUS in slot2 are not identical, for example, the symbol positions of WUS 0 in slot1 are symbol 1 and symbol 2, the symbol positions of WUS 1 in slot1 are symbol 4 and symbol 5, the symbol positions of WUS 2 in slot2 are symbol 5 and symbol 6, and the symbol positions of WUS 3 in slot2 are symbol 9 and symbol 10.

It should be noted that, the time domain position or the frequency domain position of different WUS in the at least one WUS may be understood as: at least one WUS is at the same time domain location and at different frequency domain locations; or at least one WUS at different time domain locations and at the same frequency domain location; or at least one WUS is at a different time domain location and at a different frequency domain location.

Illustratively, as shown in fig. 6 (a), the time domain resources where at least one SSB (e.g., SSB 0,1,2, 3) is located are different, e.g., SSB 0,1,2,3 is at different symbol positions in 1 slot (slot 1), where SSB 0 is at the position of symbol 0 and symbol 1 in slot 1, SSB 1 is at the position of symbol 3 and symbol 4 in slot 1, SSB 2 is at the position of symbol 6 and symbol 7 in slot 1, and SSB 3 is at the position of symbol 9 and symbol 10 in slot 1.

As shown in fig. 6 (B), each WUS of at least one WUS (e.g., WUS 0,1,2, 3) has a fixed time domain offset (e.g., two symbols) from its corresponding SSB, where WUS 0 corresponds to SSB 0, WUS 1 corresponds to SSB1, WUS 2 corresponds to SSB 2, WUS 3 corresponds to SSB 3, and each WUS of these WUS has a time domain offset of two symbols from its corresponding SSB.

As shown in fig. 6 (C), different WUS have different time domain positions, e.g., WUS 0,1,2,3 at different symbol positions in 1 slot (slot 1), wherein WUS 0 is at the positions of symbol 0 and symbol 1 in slot 1, WUS1 is at the positions of symbol 5 and symbol 6 in slot 1, WUS 2 is at the positions of symbol 8 and symbol 9 in slot 1, WUS3 is at the positions of symbol 12 and symbol 13 in slot 1.

As shown in fig. 6 (D), different WUS have different time domain positions or frequency domain positions, e.g., WUS 0 and WUS1 are at the same time domain position and at different frequency domain positions, WUS 2 and WUS 3 are at the same time domain position and at different frequency domain positions. Wherein WUS 0 is at the positions of symbol 2 and symbol 3 in slot 1, WUS1 is at the positions of symbol 2 and symbol 3 in slot 1, and WUS 0 and WUS1 are at different frequency domain positions; the positions of symbol 8 and symbol 9 in slot 1 for WUS 2, the positions of symbol 8 and symbol 9 in slot 1 for WUS 3, and the positions of WUS 2 and WUS 3 in different frequency domain locations.

Optionally, in another implementation manner of the embodiment of the present application, each SSB of the at least one SSB has a fixed time-frequency resource relationship with its corresponding WUS, including: a third resource case and a fourth resource case.

Wherein, the third resource case is: the time domain resources of at least one SSB are different, and at least one symbol position is partially or completely the same, and the at least one symbol position is the symbol position of the time domain resource of at least one SSB in different time slots.

The fourth resource case is any one of the following:

It should be noted that the at least one symbol position being partially identical or completely identical may be understood as follows: in the time slot where at least one SSB is located, the symbol positions where SSBs in different time slots are located are partially identical or completely identical.

Illustratively, at least one slot is assumed to include slot1, slot2, and at least one SSB includes SSBs 0,1,2,3. The SSB in slot1 is the same as the SSB in slot2, for example, the SSB 0 in slot1 is in symbol 0 and symbol 1, the SSB 1 in slot1 is in symbol 3 and symbol 4, the SSB 2 in slot2 is in symbol 0 and symbol 1, and the SSB 3 in slot2 is in symbol 3 and symbol 4.

It should be noted that, for the explanation of "the time domain resource where the at least one SSB is located is different", "the different WUS has different time domain positions, and the time domain positions of the different WUS are not identical in the symbol positions of the different slots", and "the different WUS has different time domain positions or frequency domain positions", reference may be made to the description in the above implementation manner, and the description is not repeated herein.

Illustratively, as shown in fig. 7 (a), the time domain resources where at least one SSB (e.g., SSB 0,1,2, 3) is located are different, and the symbol positions of the time domain resources where at least one SSB is located in different slots are the same, e.g., SSB 0,1,2,3 is located in the symbol positions of 2 slots (slot 1 and slot 2), and the symbol positions where SSB (SSB 0, 1) in slot 1 and SSB (SSB 2, 3) in slot 2 are the same. Wherein SSB 0 is at the positions of symbol 0 and symbol 1 in slot 1, SSB 1 is at the positions of symbol 7 and symbol 8 in slot 1, SSB 2 is at the positions of symbol 0 and symbol 1 in slot 2, and SSB 3 is at the positions of symbol 7 and symbol 8 in slot 2.

It can be seen that the symbol positions of SSB in slot 1 include the positions of symbol 0, symbol 1, symbol 7 and symbol 8, and the symbol positions of SSB in slot 2 include the positions of symbol 0, symbol 1, symbol 7 and symbol 8, so that the time domain resources of SSB 0,1,2 and 3 are the same in the symbol positions of different slots.

As shown in (B) of fig. 7, different WUS in at least one WUS (e.g., WUS 0,1,2, 3) have different time domain positions, and the time domain positions of the different WUS are not exactly the same in the symbol positions of different slots, e.g., WUS 0,1,2,3 are in the symbol positions of 2 slots (slot 1 and slot 2), and WUS (WUS 0, 1) in slot 1 and WUS (WUS 2, 3) in slot 2 are different in the symbol positions. Wherein WUS 0 is at the positions of symbol 2 and symbol 3 in slot 1, WUS 1 is at the positions of symbol 9 and symbol 10 in slot 1, WUS 2 is at the positions of symbol 0 and symbol 1 in slot 2, WUS 3 is at the positions of symbol 7 and symbol 8 in slot 2.

It can be seen that the symbol positions of WUS in the slot 1 include the positions of symbol 2, symbol 3, symbol 9 and symbol 10, and the symbol positions of WUS in the slot 2 include the positions of symbol 0, symbol 1, symbol 7 and symbol 8, so that the time domain positions of WUS0,1,2 and 3 are different from one slot to another.

As shown in fig. 7 (C), different WUS have different time domain positions or frequency domain positions, e.g., WUS 0 and WUS1 are at the same time domain position and at different frequency domain positions, WUS 2 and WUS 3 are at the same time domain position and at different frequency domain positions. Wherein WUS 0 is at the position of symbol 5 and symbol 6 in slot 1, WUS1 is at the position of symbol 5 and symbol 6 in slot 1, and WUS 0 and WUS1 are at different frequency domain positions; positions of symbols 12 and 13 in slot 2 for WUS 2, positions of symbols 12 and 13 in slot 2 for WUS 3, and positions of WUS 2 and WUS 3 in different frequency domain.

Optionally, in an embodiment of the present application, the form of WUS includes any one of the following: an uplink preamble, a physical uplink control channel (Physical Uplink Control Channel, PUCCH), a Sounding reference signal (Sounding REFERENCE SIGNAL, SRS), a scheduling request (Scheduling Request, SR), a Configured Grant (CG), a dedicated signal.

It should be noted that the above dedicated signal may be understood as a specific signal dedicated to waking up the energy saving base station transmitting the light SSB.

Step 202, the UE sends WUS according to the first information.

In the embodiment of the application, the UE may send WUS to the energy-saving base station on the corresponding time-frequency resource based on the configuration of the first SSB and the mapping relationship between the first SSB and WUS. That is, the UE may measure the first SSB based on the configuration of the first SSB, determine one or more SSBs according to the measurement result, and then transmit WUS on time-frequency resources corresponding to the one or more SSBs according to the mapping relationship between the first SSB and the WUS.

Alternatively, in an embodiment of the present application, as shown in fig. 8 in conjunction with fig. 5, the above step 202 may be specifically implemented by the following steps 202a and 202 b.

In step 202a, the UE measures the first SSB in a plurality of times according to the configuration of the first SSB, and determines one or more SSBs that satisfy the preset condition from the first SSB according to the measured measurement result.

It will be appreciated that the UE may measure the first SSB (light SSB) for a plurality of times before detecting the first information for WUS transmission, and select one or more SSBs for which the RSRP/RSRQ satisfies a preset condition as the beam to be preferentially used according to the measured measurement result (e.g., RSRP or RSRQ of the SSBs).

Optionally, in an embodiment of the present application, the preset condition may include any one of the following: the signal quality (RSRP or RSRQ) of the SSB is strongest or most appropriate (e.g., RSRP/RSRQ is maximum or most stable), the signal quality of the SSB is greater than or equal to a preset threshold.

Alternatively, in an embodiment of the present application, the strongest/most appropriate SSB or SSBs may be: one or more SSBs corresponding to the maximum RSRP among RSRP obtained from a plurality of measurements; or one or more SSBs from which the RSRP is relatively most stable, as measured from multiple measurements.

Optionally, in the embodiment of the present application, the multiple times may be determined autonomously by the UE, or predefined by a protocol, or preconfigured by a network side.

Step 202b, the UE sends WUS on WUS time-frequency resources corresponding to one or more SSBs according to the mapping relationship between the first SSB and the WUS.

In the embodiment of the present application, the UE may determine WUS time-frequency resources (WUS time-domain positions and/or frequency-domain positions) corresponding to the one or more SSBs according to the mapping relationship between the first SSB and the WUS, so as to send WUS on the WUS time-frequency resources.

Illustratively, assume that one or more of the SSBs described above are SSB 0,1. Wherein SSB 0 corresponds to WUS0, and the positions of WUS0 in symbol 2 and symbol 3 in slot 1; SSB 1 corresponds to WUS 1, and the positions of WUS 1 in symbol 5 and symbol 6 in slot 1; then the UE may send WUS at the positions of symbol 2 and symbol 3 in slot 1 and WUS at the positions of symbol 5 and symbol 6 in slot 1.

Alternatively, in an embodiment of the present application, as shown in fig. 9 in conjunction with fig. 5, the above step 202 may be specifically implemented by the following steps 202c and 202 d.

Step 202c, the UE starts to send WUS according to the first information, and performs M times of detection of the second SSB in a fixed time.

In an embodiment of the present application, the second SSB is a SSB different from the first SSB.

Optionally, in an embodiment of the present application, the second SSB is a normal SSB (non-light SSB).

In step 202d, if the UE does not detect the second SSB, the UE continues to send WUS according to the first information, and if the UE still does not detect the second SSB after sending WUS N times, the UE stops sending WUS.

In the embodiment of the present application, the fixed time, M and N are predefined protocols or preconfigured network side devices, and M and N are both positive integers.

In the embodiment of the application, the UE continues to send the WUS by detecting the second SSB under the condition that the second SSB is not detected, so that the energy-saving base station can correctly receive the WUS to wake up the energy-saving base station; in the case where the second SSB is not detected after N times of WUS transmission, i.e. the energy-saving base station is still in the energy-saving mode (e.g. the energy-saving base station may not successfully receive WUS, or because other factors do not switch from the energy-saving mode to the non-energy-saving mode according to the received WUS), the UE may stop transmitting WUS, so as to avoid occupying WUS time-frequency resources for a long time.

The embodiment of the application provides a WUS transmission method, wherein a UE (user equipment) can detect first information of an SSB (subscriber identity module) sent by an energy-saving base station and send WUS according to the first information, the first information is obtained by the UE from a service cell where the UE is located, and the first information comprises configuration of the first SSB of the energy-saving base station and a mapping relation between the first SSB and the WUS. In the scheme, the UE can detect the SSB information according to the first information acquired from the serving cell where the UE is located, and the first information comprises the SSB configuration of the energy-saving base station and the mapping relation between the SSB and the WUS, namely, the UE can acquire the SSB configuration and the mapping relation between the SSB and the WUS from the detected first information so as to execute the transmission of the WUS, so that the UE can correctly transmit the WUS on a beam through the detected SSB configuration of the energy-saving base station and the mapping relation between the SSB and the WUS under the condition that the UE cannot acquire the SSB index of the energy-saving base station, and the energy-saving base station can correctly receive the WUS.

According to the WUS transmission method provided by the embodiment of the application, the execution main body can be a WUS transmission device. In the embodiment of the application, a method for UE to execute WUS transmission is taken as an example, and the WUS transmission device provided in the embodiment of the application is described.

Fig. 10 shows a schematic diagram of a possible structure of a WUS transmission apparatus according to an embodiment of the present application, where the WUS transmission apparatus is applied to a UE. As shown in fig. 10, the WUS transfer device 70 may include: a detection module 71 and a transmission module 72.

The detection module 71 is configured to detect first information of SSB sent by the energy-saving base station, where the first information is obtained by the UE from a serving cell where the UE is located, and the first information includes: configuration of a first SSB of the energy-saving base station and mapping relation between the first SSB and the WUS. A transmitting module 72, configured to transmit WUS according to the first information detected by the detecting module 71.

The embodiment of the application provides a WUS transmission device, which can detect SSB information according to first information acquired from a serving cell where a UE is located, wherein the first information includes SSB configuration of an energy-saving base station and a mapping relationship between SSB and WUS, that is, the WUS transmission device can obtain the SSB configuration and the mapping relationship between SSB and WUS from the detected first information so as to perform WUS transmission, so that the scheme realizes that the WUS transmission device can perform WUS transmission on a correct beam through the detected SSB configuration of the energy-saving base station and the mapping relationship between SSB and WUS under the condition that the WUS transmission device cannot obtain SSB index of the energy-saving base station, and the energy-saving base station can correctly receive WUS.

In one possible implementation manner, the first information is obtained by a UE through a downlink signal or RRC signaling sent by a serving cell where the UE is located; wherein the downstream signal comprises at least one of: SSB, MIB, SIB, PDCCH, MAC-CE.

In one possible implementation, the first SSB includes at least one SSB. The mapping relation between the first SSB and the WUS is as follows: each SSB has a fixed time-frequency resource relationship with its corresponding WUS.

In one possible implementation manner, each SSB has a fixed time-frequency resource relationship with its corresponding WUS, including: a first resource case and a second resource case.

The first resource condition is as follows: the time domain resources of at least one SSB are different, and at least one symbol position is not identical, and the at least one symbol position is the symbol position of the time domain resource of at least one SSB in different time slots.

The second resource case is any one of the following:

Each WUS has a fixed time domain offset from its corresponding SSB;

different WUS have different time domain positions, and the time domain positions of the different WUS are not exactly the same in the symbol positions of the different slots;

Different WUS have different time domain locations or frequency domain locations.

In one possible implementation manner, each SSB has a fixed time-frequency resource relationship with its corresponding WUS, including: a third resource case and a fourth resource case.

The fourth resource case is any one of the following:

In one possible implementation manner, the sending module is specifically configured to measure the first SSB in a plurality of times according to the configuration of the first SSB, and determine, according to a measurement result obtained by the measurement, one or more SSBs that meet a preset condition from the first SSB; and transmitting the WUS on the WUS time-frequency resources corresponding to the one or more SSB according to the mapping relation between the first SSB and the WUS.

In one possible implementation, the form of WUS described above includes any of the following: uplink preamble, PUCCH, SRS, SR, CG, dedicated signal.

In one possible implementation manner, the sending module is specifically configured to start sending WUS according to the first information, and perform detection of a second SSB M times within a fixed time, where the second SSB is a SSB different from the first SSB; and continuing to transmit WUS according to the first information in case the UE does not detect the second SSB, and stopping transmitting WUS in case the second SSB is not detected after N times of transmission of WUS. Wherein, the fixed time, M and N are predefined protocol or preconfigured network side equipment, and M and N are positive integers.

The WUS transmission device provided by the embodiment of the present application can implement each process implemented by the UE in the above method embodiment, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

The WUS transmission device in the embodiment of the present application may be a UE, for example, a UE with an operating system, or may be a component in the UE, for example, an integrated circuit or a chip. The UE may be a terminal or may be another device other than a terminal. By way of example, the UE may include, but is not limited to, the types of UE 11 listed above, and the other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the present application are not limited in detail.

Optionally, as shown in fig. 11, the embodiment of the present application further provides a communication device 5000, which includes a processor 5001 and a memory 5002, where the memory 5002 stores a program or instructions that can be executed on the processor 5001, for example, when the communication device 5000 is a UE, the program or instructions implement each step of the method embodiment on the UE side when executed by the processor 5001, 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 the UE, which comprises a processor and a communication interface, wherein the processor is used for detecting the first information of the SSB sent by the energy-saving base station, the first information is obtained by the UE from a service cell where the UE is located, and the first information comprises: configuration of a first SSB of the energy-saving base station and mapping relation between the first SSB and the WUS. The communication interface is used for sending the WUS according to the first information. The UE embodiment corresponds to the UE-side method embodiment, and each implementation process and implementation manner of the method embodiment are applicable to the UE embodiment, and the same technical effects can be achieved.

Specifically, fig. 12 is a schematic hardware structure of a UE implementing an embodiment of the present application.

The UE 7000 includes, but is not limited to: at least some of the components of the radio frequency unit 7001, the network module 7002, the audio output unit 7003, the input unit 7004, the sensor 7005, the display unit 7006, the user input unit 7007, the interface unit 7008, the memory 7009, the processor 7010, and the like.

Those skilled in the art will appreciate that the UE 7000 may further include a power source (e.g., a battery) for powering the various components, which may be logically connected to the processor 7010 by a power management system to perform functions such as managing charging, discharging, and power consumption by the power management system. The UE structure shown in fig. 12 does not constitute a limitation of the UE, and the UE may include more or less components than illustrated, or may combine certain components, or may be arranged in different components, which are not described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 7004 may include a graphics processing unit (Graphics Processing Unit, GPU) 70041 and a microphone 70042, with the graphics processor 70041 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 7006 may include a display panel 70061, and the display panel 70061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 7007 includes at least one of a touch panel 70071 and other input devices 70072. The touch panel 70071 is also referred to as a touch screen. The touch panel 70071 may include two parts, a touch detection device and a touch controller. Other input devices 70072 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 the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 7001 may transmit the downlink data to the processor 7010 for processing; in addition, the radio frequency unit 7001 may send uplink data to the network side device. In general, radio frequency units 7001 include, but are not limited to, antennas, amplifiers, transceivers, couplers, low noise amplifiers, diplexers, and the like.

The memory 7009 may be used to store software programs or instructions and various data. The memory 7009 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 7009 may include volatile memory or nonvolatile memory, or the memory 7009 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 random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDRSDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCH LINK DRAM, SLDRAM), and Direct random access memory (DRRAM). Memory 7009 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.

The processor 7010 may include one or more processing units; the processor 7010 optionally integrates an application processor that primarily handles operations involving an operating system, user interfaces, applications, etc., and a modem processor that primarily handles wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 7010.

The processor 7010 is configured to detect first information of SSB sent by the energy-saving base station, where the first information is obtained by the UE from a serving cell where the UE is located, and the first information includes: configuration of a first SSB of the energy-saving base station and mapping relation between the first SSB and the WUS.

A radio frequency unit 7001 for transmitting WUS according to the first information.

The embodiment of the application provides a UE, which can detect SSB information according to first information acquired from a service cell where the UE is located, wherein the first information comprises SSB configuration of an energy-saving base station and mapping relation between SSB and WUS, namely the UE can acquire the SSB configuration and the mapping relation between SSB and WUS from the detected first information so as to execute the transmission of WUS, so that the UE can correctly receive the WUS through the detected SSB configuration of the energy-saving base station and the mapping relation between SSB and WUS under the condition that the UE cannot acquire SSB index of the energy-saving base station.

The UE provided in the embodiment of the present application can implement each process implemented by the UE in the embodiment of the method and achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

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

Wherein the processor is a processor in the communication device 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, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the embodiment of the method, and can achieve the same technical effects, so that repetition is avoided, and the description is omitted 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 stored in a storage medium, where the computer program/program product is executed by at least one processor to implement each process of the above method embodiments, and achieve the same technical effects, and are not repeated herein.

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 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 solution 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 (e.g. ROM/RAM, magnetic disk, optical disk) comprising 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 according to 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 having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A wake-up signal WUS transmission method, comprising:

The method comprises the steps that User Equipment (UE) detects first information of a Synchronous Signal Block (SSB) sent by an energy-saving base station, wherein the first information is obtained by the UE from a service cell where the UE is located, and the first information comprises: the configuration of a first synchronization signal block SSB of the energy-saving base station and the mapping relation between the first SSB and the WUS;

And the UE transmits WUS according to the first information.

2. The method according to claim 1, wherein the first information is obtained by the UE through a downlink signal or radio resource control RRC signaling sent by a serving cell in which the UE is located;

wherein the downstream signal comprises at least one of: SSB, master information block MIB, system information block SIB, physical downlink control channel PDCCH, medium access control-control unit MAC-CE.

3. The method of claim 1, wherein the first SSB comprises at least one SSB;

The mapping relation between the first SSB and the WUS is as follows: each SSB has a fixed time-frequency resource relationship with its corresponding WUS.

4. The method of claim 3, wherein each SSB has a fixed time-frequency resource relationship with its corresponding WUS, comprising: a first resource instance and a second resource instance;

Wherein, the first resource condition is: the time domain resources of the at least one SSB are different, and the at least one symbol position is not identical, wherein the at least one symbol position is the symbol position of the time domain resource of the at least one SSB in different time slots;

the second resource case is any one of the following:

Each WUS has a fixed time domain offset from its corresponding SSB;

5. The method of claim 3, wherein each SSB has a fixed time-frequency resource relationship with its corresponding WUS, comprising: a third resource case and a fourth resource case;

Wherein, the third resource case is: the time domain resources of the at least one SSB are different, and at least one symbol position is partially or completely the same, wherein the at least one symbol position is the symbol position of the time domain resource of the at least one SSB in different time slots;

The fourth resource case is any one of the following:

6. The method according to any one of claims 1 to 5, wherein the UE transmitting WUS according to the first information, comprises:

the UE measures the first SSB in a plurality of times according to the configuration of the first SSB, and determines one or more SSB meeting preset conditions from the first SSB according to the measured measurement result;

And the UE transmits the WUS on the WUS time-frequency resources corresponding to the one or more SSB according to the mapping relation between the first SSB and the WUS.

7. The method of claim 1, wherein the form of WUS comprises any one of: an uplink preamble, a physical uplink control channel PUCCH, a sounding reference signal SRS, a scheduling request SR, a configuration grant CG and a special signal.

8. The method of claim 1, wherein the UE transmitting WUS according to the first information comprises:

the UE starts to send WUS according to the first information, and detects a second SSB for M times within a fixed time, wherein the second SSB is different from the first SSB;

If the UE does not detect the second SSB, the UE continues to send WUS according to the first information, and if the UE still does not detect the second SSB after sending WUS N times, the UE stops sending WUS;

Wherein, the fixed time, M and N are predefined protocols or preconfigured network side equipment, and M and N are positive integers.

9. A wake-up signal WUS transmission apparatus, comprising: the device comprises a detection module and a sending module;

The detection module is configured to detect first information of a synchronization signal block SSB sent by an energy-saving base station, where the first information is obtained by the UE from a serving cell where the UE is located, and the first information includes: the configuration of a first synchronization signal block SSB of the energy-saving base station and the mapping relation between the first SSB and the WUS;

the sending module is used for sending the WUS according to the first information detected by the detecting module.

10. The apparatus of claim 9, wherein the first information is obtained by the UE through a downlink signal or radio resource control RRC signaling sent by a serving cell in which the UE is located;

11. The apparatus of claim 9, wherein the first SSB comprises at least one SSB;

12. The apparatus of claim 11, wherein each SSB has a fixed time-frequency resource relationship with its corresponding WUS, comprising: a first resource instance and a second resource instance;

the second resource case is any one of the following:

Each WUS has a fixed time domain offset from its corresponding SSB;

13. The apparatus of claim 11, wherein each SSB has a fixed time-frequency resource relationship with its corresponding WUS, comprising: a third resource case and a fourth resource case;

The fourth resource case is any one of the following:

14. The apparatus according to any one of claims 9 to 13, wherein the sending module is specifically configured to measure the first SSB at a plurality of times according to the configuration of the first SSB, and determine, from the first SSB, one or more SSBs that satisfy a preset condition according to the measurement result obtained by the measurement; and transmitting the WUS on the WUS time-frequency resources corresponding to the one or more SSB according to the mapping relation between the first SSB and the WUS.

15. The apparatus of claim 9, wherein the WUS form comprises any one of: an uplink preamble, a physical uplink control channel PUCCH, a sounding reference signal SRS, a scheduling request SR, a configuration grant CG and a special signal.

16. The apparatus of claim 9, wherein the transmitting module is specifically configured to start transmitting WUS according to the first information, and perform M times of detection of a second SSB within a fixed time, where the second SSB is a SSB different from the first SSB; and if the UE does not detect the second SSB, continuing to transmit WUS according to the first information, and if the second SSB is not detected after N times of WUS transmission, stopping the WUS transmission;

17. A user equipment UE, characterized by comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor realizes the steps of the wake-up signal WUS transmission method according to any of claims 1 to 8.

18. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the wake-up signal WUS transmission method according to any of claims 1 to 8.