User equipment, base station and method executed by user equipment and base station

Abstract

The embodiment of the invention provides a method executed by user equipment in a wireless communication system, and relates to the technical field of communication. The method comprises: receiving first configuration information and / or second configuration information, the first configuration information comprising first information related to timing advance of each TAG in at least two timing advance groups TAG, and the second configuration information comprising second information related to a synchronization information block SSB of a serving cell and / or a neighbor cell; when the UE executes measurement, not receiving a first downlink signal and / or sending a first uplink signal on the first time domain resource; wherein the first time domain resource is determined based on the first information and / or the second information corresponding to each TAG, thereby providing an enhanced measurement method, and realizing efficient communication of the whole communication system.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of communication technology, and in particular, the present disclosure relates to a user equipment and a base station and methods performed thereby. BACKGROUND

[0002] To meet the demand for wireless data traffic having increased since deployment of 4G communication systems, efforts have been made to develop an improved 5G or pre-5G communication system. Therefore, the 5G or pre-5G communication system is also called a 'Beyond 4G Network' or a '5G Network'.

[0003] The 5G communication system is implemented to be connected to a next-generation Internet network so as to provide a high-speed, large-capacity, and low-latency services.

[0004] In addition, in the 5G communication system, development for system network improvement is under way based on advanced small cells, cloud radio access networks (RANs), ultra-dense networks, a technology for coordination between cells, a coordinated multi-AT (user equipment), an advanced small cell, a cloud RAN, a super-dense network, a mobile network based on a network of a device to device (D2D) communication, a wireless backhaul, a moving network, a cooperative communication, coordinated multipoint (CoMP), reception-end interference cancellation, and the like.

[0005] In the 5G system, hybrid FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC) as an advanced coding modulation (ACM), and filter bank multi carrier (FBMC), a non-orthogonal multiple access (NOMA), and a sparse code multiple access (SCMA) as an advanced access technology have been developed. SUMMARY

[0006] The present disclosure provides a method performed by a user equipment in a wireless communication system, a user equipment and a computer readable storage medium, which can solve the problems of inaccurate measurement, poor flexibility and the like of the UE in a network with m-TRP. The technical solution is as follows:

[0007] In a first aspect, a method performed by a user equipment in a wireless communication system is provided, comprising:

[0008] receiving first configuration information and / or second configuration information, the first configuration information comprising first information related to a timing advance of each of at least two timing advance groups (TAGs), and the second configuration information comprising second information related to a synchronization signal block (SSB) of a serving cell and / or a neighbor cell;

[0009] the first downlink signal is not received and / or the first uplink signal is not transmitted on the first time domain resource when the UE performs the measurement.

[0010] wherein the first time domain resource is determined based on the first information and / or the second information corresponding to each of the TAGs.

[0011] In some embodiments, the first time domain resource comprises a second time domain resource on which the UE performs the measurement, and N time units before and / or after the second time domain resource.

[0012] wherein N is determined based on the first information and / or the second information corresponding to each of the TAGs.

[0013] In some embodiments, the first information comprises N TA and / or N TA_offset wherein N TA represents a time advance amount configured in a time advance command, N TA_offset represents a common time advance amount for transmitting uplink signals in the corresponding TAG.

[0014] In some embodiments, the method further comprises:

[0015] transmitting a second uplink signal at a first time point, wherein the first time point is determined based on a downlink reference point, and the downlink reference point is determined based on a second downlink signal.

[0016] wherein the second downlink signal is determined based on at least one of:

[0017] an SSB of a serving cell of the UE;

[0018] an SSB of a cell with a first physical cell identifier (PCI).

[0019] In some embodiments, the second downlink signal comprises at least one of:

[0020] an SSB of a serving cell of the UE;

[0021] an SSB of a cell with a first physical cell identifier (PCI);

[0022] a downlink signal associated with a first transmission configuration indication (TCI) state in a TCI state list, the first TCI state and an SSB of a serving cell of the UE being quasi co-located;

[0023] a downlink signal associated with a second TCI state in the TCI state list, the second TCI state and an SSB of a cell with the first PCI being quasi co-located.

[0024] In some embodiments, N is determined based on a first capability of the UE, wherein the first capability of the UE comprises at least one of:

[0025] a capability of the UE to support at least two TAGs for multiple TRPs within a cell;

[0026] a capability of the UE to support at least two TAGs for multiple TRPs across cells;

[0027] a capability of the UE to support a time difference between transmission timings of at least two TAGs being larger than a layer L1 measurement under a cyclic prefix CP condition.

[0028] In some embodiments, when the UE supports the first capability, N is determined based on the first information and / or the second information corresponding to each of the TAGs.

[0029] when the UE does not support the first capability, N is a fixed value.

[0030] In some embodiments, the determination of N comprises any one of:

[0031] based on a ratio between a maximum value of a difference between first timing advances of the plurality of TAGs and a length of a time unit;

[0032] based on a ratio between a maximum value of the first timing advances of the plurality of TAGs and a length of a time unit;

[0033] based on a ratio between a maximum value of a difference between the first timing advances and second timing advances of the plurality of TAGs and a length of a time unit;

[0034] based on a first parameter and a second parameter, wherein the first parameter is determined by any one of:

[0035] based on a ratio between a maximum value of a difference between first timing advances of the plurality of TAGs and a length of a time unit;

[0036] based on a ratio between a maximum value of the first timing advances of the plurality of TAGs and a length of a time unit;

[0037] based on a ratio between a maximum value of a difference between the first timing advances and second timing advances of the plurality of TAGs and a length of a time unit;

[0038] the second parameter is determined based on a ratio between a reception time difference between an SSB of the serving cell and an SSB of a cell with the first PCI and a length of a time unit comprised in the second information;

[0039] wherein the timing advance is based on N comprised in the first informationTA and / or N TA_offset determined.

[0040] The second timing advance is based on a TAG of a current serving cell existing downlink signal N TA and / or N TA_offset determined.

[0041] In a second aspect, a method performed by a base station in a wireless communication system is provided, comprising:

[0042] sending, to a user equipment (UE), first configuration information and / or second configuration information, the first configuration information comprising first information related to a timing advance of each of at least two timing advance groups (TAGs), and the second configuration information comprising second information related to a synchronization signal block (SSB) of a serving cell and / or a neighbor cell;

[0043] not receiving a first downlink signal and / or sending a first uplink signal on a first time domain resource;

[0044] wherein the first time domain resource is determined based on the first information and / or the second information corresponding to the each of the TAGs.

[0045] In some embodiments, the first time unit comprises a second time domain resource on which the UE performs measurement, and N time units before and / or after the second time domain resource.

[0046] wherein N is determined based on the first information and / or the second information corresponding to the each of the TAGs.

[0047] In some embodiments, the first information comprises N TA and / or N TA_offset , wherein N TA represents a timing advance configured in a timing advance command, and N TA_offset represents a common timing advance for transmitting an uplink signal in the corresponding TAG.

[0048] In some embodiments, the method further comprises:

[0049] receiving a second uplink signal sent by the UE at a first time point, wherein the first time point is determined based on a downlink reference point, and the downlink reference point is determined based on a second downlink signal;

[0050] wherein the second downlink signal is determined based on at least one of:

[0051] the SSB of the serving cell;

[0052] an SSB of a cell of a first physical cell identity (PCI).

[0053] In some embodiments, the second downlink signal comprises at least one of:

[0054] an SSB of a serving cell of the UE;

[0055] an SSB of a cell of a first physical cell identity (PCI).

[0056] a downlink signal associated with a first TCI state in a transmission configuration indication (TCI) state list, the first TCI state being quasi co-located with an SSB of a serving cell of the UE;

[0057] a downlink signal associated with a second TCI state in the TCI state list, the second TCI state being quasi co-located with an SSB of a cell of a first physical cell identity (PCI).

[0058] In some embodiments, N is further determined based on a first capability of the UE, wherein the first capability of the UE comprises at least one of:

[0059] a capability of the UE to support at least two TAGs of multiple TRPs within a cell;

[0060] a capability of the UE to support at least two TAGs of multiple TRPs across cells;

[0061] a capability of the UE to support a time difference between transmission timings of the at least two TAGs being larger than a layer L1 measurement under a cyclic prefix (CP) condition.

[0062] In some embodiments, when the UE supports the first capability, N is determined based on the first information and / or the second information corresponding to each of the TAGs.

[0063] when the UE does not support the first capability, N is a fixed value.

[0064] In some embodiments, the determination of N comprises any one of:

[0065] based on a ratio between a maximum value of differences between first timing advance amounts of the plurality of TAGs and a length of a time unit;

[0066] based on a ratio between a maximum value of first timing advance amounts of the plurality of TAGs and a length of a time unit;

[0067] based on a ratio between a maximum value of differences between first timing advance amounts and second timing advance amounts of the plurality of TAGs and a length of a time unit.

[0068] determined based on the first parameter and the second parameter, wherein the first parameter is determined by any one of the following ways:

[0069] based on a ratio between a maximum value of differences between the first timing advance amounts of the plurality of TAGs and the length of the time unit;

[0070] based on a ratio between a maximum value of the first timing advance amounts of the plurality of TAGs and the length of the time unit;

[0071] based on a ratio between a maximum value of differences between the first timing advance amounts and the second timing advance amounts of the plurality of TAGs and the length of the time unit;

[0072] the second parameter is determined based on a ratio between a time difference between a SSB of the serving cell and a SSB of a cell with the first PCI included in the second information and the length of the time unit;

[0073] wherein the timing advance is determined based on N TA and / or N TA_offset included in the first information;

[0074] the second timing advance is determined based on N TA and / or N TA_offset of a TAG of the current serving cell with a downlink signal.

[0075] In a third aspect, a user equipment in a wireless communication system is provided, comprising a transceiver, and at least one processor coupled to the transceiver, the at least one processor configured to perform the method shown in the first aspect of the present disclosure.

[0076] In a fourth aspect, a user equipment in a wireless communication system is provided, comprising a transceiver, and at least one processor coupled to the transceiver, the at least one processor configured to perform the method shown in the second aspect of the present disclosure.

[0077] In a fifth aspect, a computer readable storage medium is provided, the storage medium has a computer program stored therein, the computer program is executed by a processor to perform the method shown in the first aspect or the second aspect of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0078] Exemplary embodiments of the present disclosure are further described below with reference to the accompanying drawings.

[0079] The text and drawings are provided only as examples to assist with understanding the present disclosure. They should not be construed as limiting the scope of the present disclosure in any way. While certain embodiments and examples are provided, based on the disclosure provided herein, one skilled in the art will appreciate that changes can be made without departing from the scope and spirit of the present disclosure.

[0080] Figure 1 A sample wireless network is shown in accordance with various embodiments of the present disclosure;

[0081] Figure 2a and Figure 2b A sample wireless transmit and receive path is shown in accordance with the present disclosure;

[0082] Figure 3a A sample user equipment is shown in accordance with the present disclosure;

[0083] Figure 3b A sample base station is shown in accordance with the present disclosure;

[0084] Figure 4 A flow diagram of a method performed by a user equipment in a communication system is shown in accordance with embodiments of the present disclosure;

[0085] Figure 5 A flow diagram of a method performed by a base station in a communication system is shown in accordance with embodiments of the present disclosure;

[0086] Figure 6 A sample application scenario for a method is shown in accordance with embodiments of the present disclosure;

[0087] Figure 7 Another sample application scenario for a method is shown in accordance with embodiments of the present disclosure;

[0088] Figure 8 Another sample application scenario for a method is shown in accordance with embodiments of the present disclosure;

[0089] Figure 9 A block diagram of a user equipment is shown in accordance with embodiments of the present disclosure. DETAILED DESCRIPTION

[0090] The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure as defined by the claims and their equivalents. The description includes various specific details to assist in that understanding but should not be taken as limiting the scope of the present disclosure. Thus, those skilled in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions can be omitted for clarity and conciseness.

[0091] The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used to enable a clear and complete understanding of the present disclosure by those skilled in the art. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustration purpose only and not for the purpose of limiting the present disclosure as defined by the appended claims and their equivalents.

[0092] It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component surface" includes reference to one or more of such surfaces.

[0093] The terms "comprise" or "can comprise" refer to the presence of the corresponding disclosed function, operation, or component in various embodiments of the present disclosure, not the exclusion of one or more additional functions, operations, or features. Also, the terms "comprise" or "have" can be interpreted to denote the presence of certain features, numbers, steps, operations, constituent elements, components, or combinations thereof, but should not be interpreted as excluding the possibility of the presence of one or more other features, numbers, steps, operations, constituent elements, components, or combinations thereof.

[0094] The term "or" used in the various embodiments of the present disclosure includes any of the listed terms and all combinations thereof. For example, "A or B" can include A, can include B, or can include both A and B.

[0095] Unless defined differently, all terms used in the present disclosure, including technical or scientific terms, have the same meaning as those understood by those skilled in the art to which the present disclosure pertains. The terms generally used in the present disclosure should be interpreted in the same meaning that is consistent with the context of relevant technical fields, and should not be ideally or excessively formalized, unless explicitly defined in the present disclosure.

[0096] The various embodiments of this disclosure can be applied to various communication systems, such as: Global System for Mobile Communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, Frequency Division Duplex (FDD) systems, Time Division Duplex (TDD) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, 5th Generation (5G) systems, or New Radio (NR), etc. Furthermore, the various embodiments of this disclosure can be applied to future-oriented communication technologies.

[0097] Figure 1 An example wireless network 100 according to various embodiments of the present disclosure is shown. Figure 1 The embodiment of the wireless network 100 shown is for illustrative purposes only. Other embodiments of the wireless network 100 can be used without departing from the scope of this disclosure.

[0098] Wireless network 100 includes gNodeB (gNB) 101, gNB 102, and gNB 103. gNB 101 communicates with gNB 102 and gNB 103. gNB 101 also communicates with at least one Internet Protocol (IP) network 130 (such as the Internet, a proprietary IP network, or other data network).

[0099] Depending on the network type, other well-known terms such as "base station" or "access point" can be used instead of "gNodeB" or "gNB". For convenience, the terms "gNodeB" and "gNB" are used in this patent document to refer to network infrastructure components that provide wireless access for remote terminals. Furthermore, depending on the network type, other well-known terms such as "mobile station", "user station", "remote terminal", "wireless terminal", or "user device" can be used instead of "user equipment" or "UE". For convenience, the terms "user equipment" and "UE" are used in this patent document to refer to remote wireless devices that wirelessly access the gNB, whether the UE is a mobile device (such as a mobile phone or smartphone) or a fixed device as commonly understood (such as a desktop computer or vending machine).

[0100] gNB 102 provides wireless broadband access to network 130 to multiple first user equipments (UEs) within its coverage area 120. The multiple first UEs include: UE 111, which may be located in a small business (SB); UE 112, which may be located in an enterprise (E); UE 113, which may be located in a WiFi hotspot (HS); UE 114, which may be located in a first residence (R); UE 115, which may be located in a second residence (R); and UE 116, which may be a mobile device (M), such as a cellular phone, wireless laptop computer, wireless PDA, etc. gNB 103 provides wireless broadband access to network 130 to multiple second UEs within its coverage area 125. The multiple second UEs include UE 115 and UE 116. In some embodiments, one or more of gNBs 101-103 are capable of communicating with each other and with UEs 111-116 using 5G, LTE, LTE-A, WiMAX, or other advanced wireless communication technologies.

[0101] The dashed lines indicate the approximate extent of coverage areas 120 and 125, which are shown as approximately circular for illustrative and explanatory purposes only. It should be clearly understood that coverage areas associated with the gNB, such as coverage areas 120 and 125, can have other shapes, including irregular shapes, depending on the configuration of the gNB and variations in the radio environment associated with natural and man-made obstacles.

[0102] As described in more detail below, one or more of gNB 101, gNB 102, and gNB 103 include a 2D antenna array as described in embodiments of this disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 support codebook design and architecture for systems having 2D antenna arrays.

[0103] althoughFigure 1 An example of a wireless network 100 is shown, but it is possible to... Figure 1 Various modifications can be made. For example, wireless network 100 can include any number of gNBs and any number of UEs in any suitable arrangement. Furthermore, gNB 101 can communicate directly with any number of UEs and provide those UEs with wireless broadband access to network 130. Similarly, each gNB 102-103 can communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. In addition, gNBs 101, 102, and / or 103 can provide access to other or additional external networks (such as external telephone networks or other types of data networks).

[0104] Figure 2a and Figure 2b Example wireless transmit and receive paths according to this disclosure are shown. In the following description, transmit path 200 can be described as being implemented in a gNB (such as gNB 102), while receive path 250 can be described as being implemented in a UE (such as UE 116). However, it should be understood that receive path 250 can be implemented in a gNB, and transmit path 200 can be implemented in a UE. In some embodiments, receive path 250 is configured to support codebook design and structure for a system having a 2D antenna array as described in embodiments of this disclosure.

[0105] The transmit path 200 includes a channel coding and modulation block 205, a serial-to-parallel (S-to-P) block 210, an N-point inverse fast Fourier transform (IFFT) block 215, a parallel-to-serial (P-to-S) block 220, a cyclic prefix addition block 225, and an up-converter (UC) 230. The receive path 250 includes a down-converter (DC) 255, a cyclic prefix removal block 260, a serial-to-parallel (S-to-P) block 265, an N-point fast Fourier transform (FFT) block 270, a parallel-to-serial (P-to-S) block 275, and a channel decoding and demodulation block 280.

[0106] In transmit path 200, channel coding and modulation block 205 receives a set of information bits, applies coding (such as low-density parity-check (LDPC) coding), and modulates the input bits (such as using quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM)) to generate a sequence of frequency-domain modulated symbols. Serial-to-parallel (S-to-P) block 210 converts (e.g., demultiplexes) the serial modulated symbols into parallel data to generate N parallel symbol streams, where N is the number of IFFT / FFT points used in gNB 102 and UE 116. N-point IFFT block 215 performs IFFT operations on the N parallel symbol streams to generate a time-domain output signal. Parallel-to-serial block 220 converts (e.g., multiplexes) the parallel time-domain output symbols from N-point IFFT block 215 to generate a serial time-domain signal. Cyclic prefix addition block 225 inserts a cyclic prefix into the time-domain signal. Upconverter 230 modulates (e.g., upconverts) the output of the added cyclic prefix block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at the baseband before being converted to the RF frequency.

[0107] The RF signal transmitted from gNB 102 reaches UE 116 after passing through the wireless channel, and UE 116 performs the opposite operation to that at gNB 102. Downconverter 255 downconverts the received signal to the baseband frequency, and cyclic prefix removal block 260 removes the cyclic prefix to generate a serial time-domain baseband signal. Serial-to-parallel block 265 converts the time-domain baseband signal into a parallel time-domain signal. N-point FFT block 270 performs an FFT algorithm to generate N parallel frequency-domain signals. Parallel-to-serial block 275 converts the parallel frequency-domain signals into a sequence of modulated data symbols. Channel decoding and demodulation block 280 demodulates and decodes the modulated symbols to recover the original input data stream.

[0108] Each of gNBs 101-103 can implement a transmission path 200 similar to that used for transmission to UEs 111-116 in the downlink, and a reception path 250 similar to that used for reception from UEs 111-116 in the uplink. Similarly, each of UEs 111-116 can implement a transmission path 200 for transmission to gNBs 101-103 in the uplink, and a reception path 250 for reception from gNBs 101-103 in the downlink.

[0109] Figure 2a and Figure 2b Each of the components can be implemented using only hardware, or using a combination of hardware and software / firmware. As a specific example, Figure 2a and Figure 2bAt least some of the components can be implemented in software, while others can be implemented in configurable hardware or a combination of software and configurable hardware. For example, FFT block 270 and IFFT block 215 can be implemented as configurable software algorithms, wherein the value of the number of points N can be modified according to the implementation method.

[0110] Furthermore, although the description uses FFT and IFFT, this is merely illustrative and should not be construed as limiting the scope of this disclosure. Other types of transforms, such as the Discrete Fourier Transform (DFT) and Inverse Discrete Fourier Transform (IDFT) functions, can be used. It should be understood that for DFT and IDFT functions, the value of variable N can be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of variable N can be any integer that is a power of 2 (such as 1, 2, 4, 8, 16, etc.).

[0111] although Figure 2a and Figure 2b An example of a wireless transmit and receive path is shown, but it is possible to modify it further. Figure 2a and Figure 2b Make various changes. For example, Figure 2a and Figure 2b The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. Furthermore, Figure 2a and Figure 2b This is intended to illustrate examples of the types of send and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communication in a wireless network.

[0112] Figure 3a Example UE 116 according to this disclosure is shown. Figure 3a The embodiment of UE 116 shown is for illustrative purposes only, and Figure 1 UEs 111-115 can have the same or similar configurations. However, UEs have a wide variety of configurations, and Figure 3a This disclosure is not intended to limit the scope of any particular implementation of the UE.

[0113] UE 116 includes an antenna 301, a radio frequency (RF) transceiver 302, a transmit (TX) processing circuitry 303, a microphone 304, and a receive (RX) processing circuitry 305. UE 116 also includes a speaker 306, a controller / processor 307, an input / output (I / O) interface 308, multiple input devices 309, a display 310, and a memory 311. The memory 311 includes an operating system (OS) 312 and one or more applications 313.

[0114] RF transceiver 302 receives incoming RF signals transmitted by a gNB of wireless network 100 from antenna 301. RF transceiver 302 down-converts the incoming RF signals to generate an intermediate frequency (IF) or baseband signal. The IF or baseband signal is sent to RX processing circuitry 305, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. RX processing circuitry 305 sends the processed baseband signal to speaker 306 (e.g., for voice data) or to controller / processor 307 (e.g., for web browsing data) for further processing.

[0115] TX processing circuitry 303 receives analog or digital voice data from microphone 304, or other outgoing baseband data (such as network data, email, or interactive video game data) from controller / processor 307. TX processing circuitry 303 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate processed baseband or IF signals. RF transceiver 302 receives the processed baseband or IF signals from TX processing circuitry 303 and up-converts the baseband or IF signals into RF signals transmitted via antenna 301.

[0116] The controller / processor 307 may include one or more processors or other processing devices and execute an OS 312 stored in memory 311 to control the overall operation of the UE 116. For example, the controller / processor 307 may control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceiver 302, the RX processing circuit 305, and the TX processing circuit 303 according to known principles. In some embodiments, the controller / processor 307 includes at least one microprocessor or microcontroller.

[0117] The controller / processor 307 is also capable of executing other processes and programs residing in the memory 311, such as operations for channel quality measurement and reporting for a system having a 2D antenna array as described in the embodiments of this disclosure. The controller / processor 307 is capable of moving data into or out of the memory 311 as needed for the execution of the process. In some embodiments, the controller / processor 307 is configured to execute an application 313 based on the OS 312 or in response to signals received from a gNB or operator. The controller / processor 307 is also coupled to an I / O interface IF 308, which provides the UE 116 with the ability to connect to other devices such as laptop computers and handheld computers. The I / O interface 308 is the communication path between these accessories and the controller / processor 307.

[0118] The controller / processor 307 is also coupled to input devices(s) 309 and a display 310. An operator of the UE 116 can use the input devices(s) 309 to input data into the UE 116. The display 310 may be a liquid crystal display or another display capable of displaying text and / or at least limited graphics (such as from a website). Memory 311 is coupled to the controller / processor 307. A portion of memory 311 may include random access memory (RAM), while another portion of memory 311 may include flash memory or other read-only memory (ROM).

[0119] although Figure 3a An example of UE 116 is shown, but it is possible to... Figure 3a Make various changes. For example, Figure 3a The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. As a specific example, the controller / processor 307 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Furthermore, although... Figure 3a The UE116 is shown configured as a mobile phone or smartphone, but the UE can be configured to operate as other types of mobile or fixed devices.

[0120] Figure 3b An example gNB 102 according to this disclosure is shown. Figure 3b The embodiment of gNB 102 shown is for illustrative purposes only, and Figure 1 Other gNBs can have the same or similar configurations. However, gNBs have a wide variety of configurations, and Figure 3b The scope of this disclosure is not limited to any particular implementation of the gNB. It should be noted that gNB 101 and gNB 103 can include the same or similar structures as gNB 102.

[0121] like Figure 3b As shown, gNB 102 includes multiple antennas 370a-370n, multiple RF transceivers 372a-372n, transmit (TX) processing circuitry 374, and receive (RX) processing circuitry 376. In some embodiments, one or more of the multiple antennas 370a-370n include a 2D antenna array. gNB 102 also includes a controller / processor 378, a memory 380, and a backhaul or network interface 382.

[0122] RF transceivers 372a-372n receive incoming RF signals, such as signals transmitted by the UE or other gNBs, from antennas 370a-370n. RF transceivers 372a-372n down-convert the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to RX processing circuitry 376, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. RX processing circuitry 376 sends the processed baseband signals to controller / processor 378 for further processing.

[0123] The TX processing circuit 374 receives analog or digital data (such as voice data, network data, email, or interactive video game data) from the controller / processor 378. The TX processing circuit 374 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceivers 372a-372n receive the outgoing processed baseband or IF signal from the TX processing circuit 374 and up-convert the baseband or IF signal into an RF signal transmitted via antennas 370a-370n.

[0124] The controller / processor 378 may include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 378 may control the reception of forward channel signals and the transmission of reverse channel signals via RF transceivers 372a-372n, RX processing circuitry 376, and TX processing circuitry 374, according to known principles. The controller / processor 378 may also support additional functions, such as more advanced wireless communication functions. For example, the controller / processor 378 may perform a BIS process, such as by a blind interference sensing (BIS) algorithm, and decode the received signal after subtracting interference. The controller / processor 378 may support any of a wide variety of other functions in the gNB 102. In some embodiments, the controller / processor 378 includes at least one microprocessor or microcontroller.

[0125] The controller / processor 378 is also capable of executing programs and other processes, such as a basic operating system, residing in the memory 380. The controller / processor 378 is also capable of supporting channel quality measurement and reporting for systems having 2D antenna arrays as described in embodiments of this disclosure. In some embodiments, the controller / processor 378 supports communication between entities such as web RTCs. The controller / processor 378 is capable of moving data into or out of the memory 380 as needed for the execution of processes.

[0126] The controller / processor 378 is also coupled to a backhaul or network interface 382. The backhaul or network interface 382 allows the gNB 102 to communicate with other devices or systems via a backhaul connection or over a network. The backhaul or network interface 382 is capable of supporting communication via any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as a cellular communication system supporting 5G or new radio access technologies or NR, LTE, or LTE-A), the backhaul or network interface 382 allows the gNB 102 to communicate with other gNBs via a wired or wireless backhaul connection. When the gNB 102 is implemented as an access point, the backhaul or network interface 382 allows the gNB 102 to communicate with a larger network (such as the Internet) via a wired or wireless local area network or via a wired or wireless connection. The backhaul or network interface 382 includes any suitable architecture supporting communication via a wired or wireless connection, such as an Ethernet or RF transceiver.

[0127] Memory 380 is coupled to controller / processor 378. A portion of memory 380 may include RAM, while another portion may include flash memory or other ROM. In some embodiments, multiple instructions, such as a BIS algorithm, are stored in memory. The multiple instructions are configured to cause controller / processor 378 to perform the BIS process and decode the received signal after subtracting at least one interference signal determined by the BIS algorithm.

[0128] As described in more detail below, the transmit and receive paths of the gNB 102 (implemented using RF transceivers 372a-372n, TX processing circuitry 374, and / or RX processing circuitry 376) support aggregated communication with FDD and TDD cells.

[0129] although Figure 3b An example of gNB 102 is shown, but it is possible to compare it with other models. Figure 3b Various modifications can be made. For example, gNB102 can include any number of... Figure 3a Each component shown. As a specific example, an access point can include multiple backhaul or network interfaces 382, ​​and a controller / processor 378 can support routing functions to route data between different network addresses. As another specific example, although shown as a single instance including TX processing circuitry 374 and a single instance including RX processing circuitry 376, the gNB 102 can include multiple instances of each (such as one for each RF transceiver).

[0130] With the development of 5G systems, in order to provide users with better communication services, a variety of enhancement technologies have been introduced, such as Multiple-Input Multiple-Output (MIMO) technology applied in multi-TRP (m-TRP) or Carrier Aggregation (CA), to further improve the communication efficiency between user equipment (UE) and base stations, thereby improving communication rate or communication reliability.

[0131] When multiple TRPs and multiple carriers communicate with the UE in conjunction, in traditional technologies, the cooperation of multiple sites and the communication between multiple sites and the UE are limited to certain specific conditions. For example, in the m-TRP transmission of single-downlink control information (S-DCI) multiple-input multiple-output (MIMO) technology, the following condition must be met: the receiving timing difference at the UE is less than the length of the cyclic prefix (CP) in the orthogonal frequency division multiplexing (OFDM) system.

[0132] In communication systems, the length of the CP (Content Carrier) is closely related to the parameter set and the subcarrier spacing (SCS). For example, when SCS = 15kHz, the CP length is approximately 4.7µs; when SCS = 30kHz, the CP length is approximately 2.3µs; when SCS = 60kHz, the CP length is approximately 1.2µs; when SCS = 120kHz, the CP length is approximately 0.57µs; and when SCS = 240kHz, the CP length is approximately 0.29µs. This limits the network deployment of m-TRP technology to only be applicable when the cell radius is very small, posing greater challenges to network deployment and scheduling. How to enable wider application of m-TRP MIMO technology in practical deployments remains an unsolved problem.

[0133] In the aforementioned m-TRP and UE communication system, each TRP is also a base station gNB or a part of a base station gNB. In this communication system, UE measurement is a crucial process in the communication between the base station and the UE. Based on the UE's RRM (Radio Resource Management) or Layer 1 (L1) measurements, the UE reports the measurement results, and the gNB can execute corresponding communication methods and steps based on the measurement results or according to regulations. When a UE performs RRM or L1 measurements, it calculates the measurement results on the configured measurement resources. For example, when calculating the corresponding Reference Signal Receiving Power (RSRP) or Signal to Interference Plus Noise Ratio (SINR), if the corresponding time unit is not selected accurately in the time-domain signal calculation, all signals within the entire time unit will be included in the measurement, making the result inaccurate. If the UE reports this inaccurate result to the base station, it will not accurately reflect the quality status between the base station and the UE, thus leading to suboptimal scheduling by the base station. Therefore, how to measure and report results more accurately is a problem that urgently needs to be solved.

[0134] This paper proposes a multi-transmitter / receiver / cell / carrier component network deployment method where the UE in the communication system executes different uplink transmission mechanisms and different L1 measurement mechanisms based on the configured messages and the UE's capabilities. This method can support a wider range of applications in practical deployments, such as: supporting network deployments with larger coverage areas per site; supporting more flexible base station deployment and scheduling; and supporting communication between intra-cell m-TRPs and UEs, inter-cell m-TRPs and UEs, and downlink communication between N1 sites and UEs. For signal measurement and uplink communication, N1 is a positive integer greater than 1. It also supports N2 sites receiving only the UE's uplink communication, where N2 is a positive integer greater than 1. These N2 sites are used to receive only the UE's uplink communication and can also be referred to as uplink-only TRPs (UL-only TRPs) in the following text. When performing RRM or L1 measurements, while ensuring measurement accuracy, it can support cells with larger cell radii, with multiple uplink-only TRPs transmitting and receiving, increasing the reliability of uplink transmission and thus increasing uplink coverage and communication reliability. It enhances base station deployment and scheduling, improving the communication efficiency between the network or base station and the UE.

[0135] Exemplary embodiments of this disclosure are further described below with reference to the accompanying drawings.

[0136] The text and accompanying drawings are provided by way of example only to aid the reader in understanding this disclosure. They are not intended and should not be construed as limiting the scope of this disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art, based on the content disclosed herein, that changes may be made to the illustrated embodiments and examples without departing from the scope of this disclosure.

[0137] Figure 4 A flowchart illustrating a method performed by a user equipment in a communication system according to an embodiment of this disclosure is shown. The method may include:

[0138] Step S11: The user equipment (UE) receives the first configuration information and / or the second configuration information;

[0139] Step S12: When the UE performs a measurement, it does not receive the first downlink signal and / or send the first uplink signal on the first time domain resource.

[0140] The first time-domain resource is determined based on the first information and / or the second information corresponding to each TAG. Optionally, the first time-domain resource includes: the second time-domain resource for the UE to perform the measurement, and N time units before and / or after the second time-domain resource. N is determined based on the first information and / or the second information corresponding to each TAG.

[0141] In some embodiments, the first configuration information includes first information related to the timing advance of each TAG in at least two timing advance groups. Optionally, the first information includes N corresponding to each TAG in a plurality of TAGs. TA and / or N TA_offset , where N TA N represents the time advance amount configured in the time advance command. TA_offset This indicates the common timing advance for sending uplink signals in the corresponding TAG.

[0142] In some embodiments, the second configuration information includes second information related to the synchronization information block (SSB) of the serving cell and / or neighboring cells.

[0143] In some embodiments, the above method may further include:

[0144] A second uplink signal is sent at a first time point, wherein the first time point is determined based on a downlink reference point, and the downlink reference point is determined based on the second downlink signal.

[0145] Optionally, the second downlink signal is determined based on at least one of the following:

[0146] The SSB of the serving cell;

[0147] The first physical cell identifier (PCI) is the SSB of the cell.

[0148] In some embodiments, the second downlink signal includes at least one of the following:

[0149] The SSB of the serving cell of the UE;

[0150] The SSB of the PCI cell;

[0151] Downlink signals associated with a first TCI state in the Transmission Configuration Indication TCI State List, the first TCI state and the SSB quasi-co-address of the UE's serving cell;

[0152] Downlink signals associated with the second TCI state in the TCI state list, and the SSB quasi-co-address of the cell of the second TCI state and the first PCI.

[0153] In some embodiments, N is further determined based on a first capability of the UE, wherein the first capability of the UE includes at least one of the following:

[0154] The UE supports the ability to use at least two tags across multiple TRPs within a cell;

[0155] The UE supports the ability to use at least two tags for multiple TRPs within a cell.

[0156] The UE supports the ability to measure Layer L1 under the condition that the time difference between the transmission timing of at least two TAGs is greater than that under the condition of cyclic prefix CP.

[0157] In some embodiments, when the UE supports the first capability, N is determined based on the first information and / or the second information corresponding to each TAG;

[0158] When the UE does not support the first capability, N is a fixed value.

[0159] In some embodiments, N is determined in one of the following ways:

[0160] The time advance is determined by the ratio between the maximum difference between the first timing advances of multiple tags and the length of the time unit.

[0161] The timing advance is determined based on the ratio between the maximum value of the first timing advance of multiple tags and the length of the time unit.

[0162] The time advance is determined by the ratio between the maximum value of the difference between the first and second timing advances of multiple tags and the length of the time unit.

[0163] The parameter is determined based on the first parameter and the second parameter, wherein the first parameter is determined in any of the following ways:

[0164] The time advance is determined by the ratio between the maximum difference between the first timing advances of multiple tags and the length of the time unit.

[0165] The timing advance is determined based on the ratio between the maximum value of the first timing advance of multiple tags and the length of the time unit.

[0166] The time advance is determined by the ratio between the maximum value of the difference between the first and second timing advances of multiple tags and the length of the time unit.

[0167] The second parameter is determined based on the ratio between the reception time difference of the SSB of the serving cell and the SSB of the first PCI cell included in the second information and the time unit length.

[0168] Wherein, the certain advance amount is based on N included in the first information. TA and / or N TA_offset Certain;

[0169] The second timing advance is based on the N of the TAG where the current serving cell has a downlink signal. TA and / or N TA_offset It's confirmed.

[0170] In embodiments of this disclosure, a time unit may include at least one of OFDM symbols, slots, subframes, frames, half-frames, mini slots, etc., but is not limited thereto.

[0171] Figure 5 A flowchart illustrating a method performed by a base station in a communication system according to an embodiment of this disclosure is shown. The method may include:

[0172] Step S21: The base station user equipment (UE) sends the first configuration information and / or the second configuration information;

[0173] Step S22: The base station does not receive the first downlink signal and / or transmit the first uplink signal on the first time domain resources.

[0174] The first time-domain resource is determined based on the first information and / or the second information corresponding to each TAG. Optionally, the first time unit includes: the second time-domain resource for which the UE performs the measurement, and N time units before and / or after the second time-domain resource. N is determined based on the first information and / or the second information corresponding to each TAG.

[0175] In some embodiments, the first configuration information includes first information related to the timing advance of each TAG in at least two timing advance groups. Optionally, the first information includes N corresponding to each TAG in a plurality of TAGs. TA and / or N TA_offset , where N TA N represents the time advance amount configured in the time advance command. TA_offset This indicates the common timing advance for sending uplink signals in the corresponding TAG.

[0176] In some embodiments, the second configuration information includes second information related to the synchronization information block (SSB) of the serving cell and / or neighboring cells.

[0177] In some embodiments, the above method may further include:

[0178] The base station receives a second uplink signal sent by the UE at a first time point, wherein the first time point is determined based on a downlink reference point, and the downlink reference point is determined based on the second downlink signal.

[0179] Optionally, the second downlink signal is determined based on at least one of the following:

[0180] The SSB of the serving cell;

[0181] The first physical cell identifier (PCI) is the SSB of the cell.

[0182] In some embodiments, the second downlink signal includes at least one of the following:

[0183] The SSB of the serving cell of the UE;

[0184] The SSB of the PCI cell;

[0185] Downlink signals associated with a first TCI state in the Transmission Configuration Indication TCI State List, the first TCI state and the SSB quasi-co-address of the UE's serving cell;

[0186] Downlink signals associated with the second TCI state in the TCI state list, and the SSB quasi-co-address of the cell of the second TCI state and the first PCI.

[0187] In some embodiments, N is further determined based on a first capability of the UE, wherein the first capability of the UE includes at least one of the following:

[0188] The UE supports the ability to use at least two tags across multiple TRPs within a cell;

[0189] The UE supports the ability to use at least two tags for multiple TRPs within a cell.

[0190] The UE supports the ability to measure Layer L1 under the condition that the time difference between the transmission timing of at least two TAGs is greater than that under the condition of cyclic prefix CP.

[0191] In some embodiments, when the UE supports the first capability, N is determined based on the first information and / or the second information corresponding to each TAG;

[0192] When the UE does not support the first capability, N is a fixed value.

[0193] In some embodiments, N is determined in one of the following ways:

[0194] The time advance is determined by the ratio between the maximum difference between the first timing advances of multiple tags and the length of the time unit.

[0195] The timing advance is determined based on the ratio between the maximum value of the first timing advance of multiple tags and the length of the time unit.

[0196] The time advance is determined by the ratio between the maximum value of the difference between the first and second timing advances of multiple tags and the length of the time unit.

[0197] The parameter is determined based on the first parameter and the second parameter, wherein the first parameter is determined in any of the following ways:

[0198] The time advance is determined by the ratio between the maximum difference between the first timing advances of multiple tags and the length of the time unit.

[0199] The timing advance is determined based on the ratio between the maximum value of the first timing advance of multiple tags and the length of the time unit.

[0200] The time advance is determined by the ratio between the maximum value of the difference between the first and second timing advances of multiple tags and the length of the time unit.

[0201] The second parameter is determined based on the ratio between the reception time difference of the SSB of the serving cell and the SSB of the first PCI cell included in the second information and the time unit length.

[0202] Wherein, the certain advance amount is based on N included in the first information.TA and / or N TA_offset Certain;

[0203] The second timing advance is based on the N of the TAG where the current serving cell has a downlink signal. TA and / or N TA_offset It's confirmed.

[0204] In a communication system, a method and apparatus for detecting / measuring / communicating m-TRP, the method comprising:

[0205] In RRC connected state (RRC_CONNECTED), the user equipment reports at least one of the following four pieces of information: The first piece of information indicates that the UE supports the capability of multiple TAGs in Intra-cell m-TRP and / or Inter-cell m-TRP. This capability can be in the same message or two separate messages. The second piece of information indicates that the UE supports L1 measurement when the RTD is greater than the CP condition. The third piece of information indicates that the UE supports L1 measurement when the time difference between the transmission timings of multiple TAGs is greater than the CP condition. The fourth piece of information indicates that the UE can simultaneously receive beams from different directions, or that the UE supports simultaneously activating N3 antenna panels (N3 ≥ 2), with at least one antenna panel having a receiving beam direction different from the other antenna panels.

[0206] In some embodiments, for example, but not limited to, at least one of the first information, the second information, the third information, and the fourth information may be carried in the UEcapabilityInformation or in newly defined information.

[0207] In some embodiments, at least one of the first information, second information, third information, and fourth information of the UE can correspond to the first capability of the UE mentioned above.

[0208] The UE receives the fifth configuration information (which can correspond to the second configuration information mentioned above) sent by the base station, indicating the m-TRP configuration information, which is divided into the following different configurations:

[0209] Configuration 1:

[0210] The fifth piece of information includes at least one of the following:

[0211] - A single Synchronization Signal Block (SSB).

[0212] - Control Resource Set (CORESET), where CORESET0 is a special CORESET used for parsing the first System Information Block (SIB1) at the initial RRC connection.

[0213] -CSI-RS (Channel State Information-Reference Signal), which is quasi-co-located (QCL) with the associated SSB configuration resources.

[0214] The sixth piece of information is base station configuration information, which is sent by the base station to the UE. This sixth piece of information includes a list of Transmission Configuration Indicator (TCI) states configured for the UE, such as dl-OrJointTCI-StateList.

[0215] When the UE receives the fifth and sixth information messages mentioned above, and the fifth information message indicates that the UE is configured in intra-cell single-downlink control information (S-DCI) mode, then when the UE transmits uplink frames (or uplink signals), the transmission time needs to be based on the reception reference point of the downlink frames (or downlink signals) received by the UE. When transmitting the initial Physical Random Access Channel (PRACH), the UE should transmit at a time (N) ahead of the downlink reference point. TA +N TA_offset )×T c Send PRACH. Where Tc = 1 / (480*1000*4096) seconds.

[0216] When sending the initial PRACH, N TA =0, N TA_offset This is the configuration information sent by the base station to the UE. If no configuration is specified, the default value is used. The downlink reference point is the downlink signal of the first detection path (in the time domain) of the reference cell. This downlink signal can be an SSB or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList).

[0217] When the m-TRP at the base station receives the PRACH signal sent by the UE, the m-TRP detects the PRACH signal to estimate the path loss of the UE to each TRP, and uses this information to configure the seventh information N. TA and / or the eighth information N TA_offset The seventh and / or eighth information is sent to the UE by the base station. The UE receives configurations for multiple Timing Advance Groups (TAGs), such as TAG1 and TAG2. Seventh information N TA and / or the eighth information N TA_offset For multiple tags, there are multiple configuration information tables, for example, N TA1 N represents the first TAG (e.g., TAG1). TA N TA2 N represents the second TAG (e.g., TAG2). TA N TA3 N represents the third TAG (e.g., TAG3). TA And so on. N TA_offset1 N represents the first TAG TA_offset N TA_offset2 N represents the second TAG TA_offset N TA_offset3 N represents the third TAG TA_offset And so on.

[0218] It should be noted that "multiple" in this article should be understood as at least two, that is: two or more.

[0219] It should also be noted that the seventh information N mentioned in this article TA and / or the eighth information N TA_offset This corresponds to the first information included in the first configuration information mentioned above.

[0220] For TAG1, the UE should advance the downlink reference point (N). TA1 +N TA_offset1 )×T c Send PUSCH / PUCCH / SRS. For TAG2, the UE should send the downlink reference point in advance (N). T22 +N TA_offset2 )×T c Send PUSCH / PUCCH / SRS, and so on. The downlink reference point is the downlink signal of the first detection path (in the time domain) of the reference cell, which can be an SSB or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList).

[0221] When the UE receives the seventh information NTA and / or the eighth information N TA_offset The UE performs the first measurement. The first measurement includes, but is not limited to, at least one of the following: Layer 1 (L1)-RSRP measurement, L1-SINR (Signal to Interference plus Noise Ratio) measurement, RadioLink Monitor (RLM) measurement, Beam Failure Detection (BFD) measurement, and Candidate Beam Detection (CBD) measurement. When the UE performs the first measurement, scheduling restrictions are imposed by the seventh information N. TA and / or the eighth information N TA_offset And the third piece of information is confirmed.

[0222] For example: The UE does not expect to transmit at least one of the following: uplink control channel, uplink data channel, channel sounding signal, and receive downlink signal on the symbol corresponding to the SSB or CSI-RS used to perform the first measurement, or on N4 OFDM symbols before and / or after that symbol. Here, N4 consists of the seventh information N. TA and / or the eighth information N TA_offset And the third piece of information is confirmed.

[0223] Configuration 2:

[0224] The fifth piece of information includes at least one of the following:

[0225] - Multiple Synchronization Signal Blocks (SSBs).

[0226] - Control Resource Set (CORESET), where CORESET0 is a special CORESET used for parsing the first System Information Block (SIB1) at the initial RRC connection.

[0227] -CSI-RS (Channel State Information-Reference Signal), which is quasi-co-located (QCL) with the associated SSB configuration resources.

[0228] The sixth piece of information is base station configuration information, which is sent by the base station to the UE. This sixth piece of information includes a list of Transmission Configuration Indicator (TCI) states configured for the UE, such as dl-OrJointTCI-StateList.

[0229] When the UE receives the fifth and sixth information messages mentioned above, and the fifth information message indicates that the UE is configured in intra-cell single-downlink control information (S-DCI) mode, then when the UE transmits uplink frames (or uplink signals), the transmission time needs to be referenced to the reception time of the downlink frames (or downlink signals) received by the UE. When transmitting the initial Physical Random Access Channel (PRACH), the UE should advance the downlink reference point by (N... TA +N TA_offset )×T c Send PRACH. Where Tc = 1 / (480*1000*4096) seconds.

[0230] When sending the initial PRACH, N TA =0, N TA_offset This refers to the configuration information sent by the base station to the UE. If no configuration is specified, the default value is used. The downlink reference point is the downlink signal of the first detection path (in the time domain) of the reference cell, which can be determined in the following way:

[0231] Multiple SSBs are grouped based on an index, for example, X groups, from the first group to the second, up to the Xth. In some embodiments, there are L SSB indices, starting from 0, with each L / X forming a group. For example, if the SSBs are divided into 2 groups, then 0 to (L / 2)-1 is one group, and L / 2 to L-1 is the other group; or, odd numbers form one group and even numbers form another group.

[0232] Downlink signals are determined by multiple distinct groups, which are determined by multiple SSB groups or downlink signals quasi-co-located with SSBs. The downlink signal corresponding to the first TAG group corresponds to an SSB belonging to SSB group 1 or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which quasi-co-located with the SSBs in SSB group 1. The downlink signal corresponding to the second TAG group corresponds to an SSB belonging to SSB group 2 or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which quasi-co-located with the SSBs in SSB group 2. Therefore, the determination of downlink signals includes at least one of the following:

[0233] - The downlink signal is determined by two different SSB groups. The downlink signal corresponding to the first TAG group corresponds to the SSB belonging to SSB group 1, and the downlink signal corresponding to the second TAG group corresponds to the SSB belonging to SSB group 2.

[0234] - Downlink signals are determined by the TCI-States associated with the SSB groups in the TCI-State list. The downlink signal corresponding to the first TAG group corresponds to a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which is quasi-co-located with the SSBs in SSB group 1. The downlink signal corresponding to the second TAG group corresponds to a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which is quasi-co-located with the SSBs in SSB group 2.

[0235] - The downlink signal corresponding to the first TAG group corresponds to an SSB belonging to SSB group 1. The downlink signal corresponding to the second TAG group corresponds to an SSB belonging to SSB group 2, or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList) that is quasi-co-located with an SSB in SSB group 2.

[0236] The downlink signal corresponding to the first TAG group corresponds to a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which is quasi-co-located with an SSB in SSB group 1. The downlink signal corresponding to the second TAG group corresponds to an SSB belonging to SSB group 2.

[0237] When the m-TRP at the base station receives the PRACH signal sent by the UE, the m-TRP detects the PRACH signal to estimate the path loss from the UE to the TRP, and uses this information to configure the seventh piece of information N. TA and / or the eighth information N TA_offset The seventh and / or eighth information is sent to the UE by the base station. The UE receives configurations for multiple Timing Advance Groups (TAGs), such as TAG1 and TAG2. Seventh information N TA and / or the eighth information N TA_offset For multiple tags, there are multiple configuration information tables, for example, N TA1 N represents the first TAG TA N TA2 N represents the second TAG TA N TA3 N represents the third TAG TA And so on. N TA_offset1 N represents the first TAG TA_offset N TA_offset2 N represents the second TAG TA_offset N TA_offset3 N represents the third TAG TA_offset And so on.

[0238] For TAG1, the UE should advance the downlink reference point (N). TA1 +N TA_offset1 )×T c Send PUSCH / PUCCH / SRS. For TAG2, the UE should send the downlink reference point in advance (N). TA2 +N TA_offset2 )×T c Send PUSCH / PUCCH / SRS, and so on. The downlink reference point is the downlink signal of the first detection path (in the time domain) of the reference cell, which can be determined in the following way:

[0239] Multiple SSBs are grouped based on an index, for example, X groups, from the first group to the second, up to the Xth. In some embodiments, there are L SSB indices, starting from 0, with each L / X forming a group. For example, if the SSBs are divided into 2 groups, then 0 to (L / 2)-1 is one group, and L / 2 to L-1 is the other group; or, odd numbers form one group and even numbers form another group.

[0240] Downlink signals are determined by multiple distinct groups, which are determined by multiple SSB groups or downlink signals quasi-co-located with SSBs. The downlink signal corresponding to the first TAG group corresponds to an SSB belonging to SSB group 1 or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which quasi-co-located with the SSBs in SSB group 1. The downlink signal corresponding to the second TAG group corresponds to an SSB belonging to SSB group 2 or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which quasi-co-located with the SSBs in SSB group 2. Therefore, the determination of downlink signals includes at least one of the following:

[0241] - The downlink signal is determined by two different SSB groups. The downlink signal corresponding to the first TAG group corresponds to the SSB belonging to SSB group 1, and the downlink signal corresponding to the second TAG group corresponds to the SSB belonging to SSB group 2.

[0242] - Downlink signals are determined by the TCI-States associated with the SSB groups in the TCI-State list. The downlink signal corresponding to the first TAG group corresponds to a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which is quasi-co-located with the SSBs in SSB group 1. The downlink signal corresponding to the second TAG group corresponds to a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which is quasi-co-located with the SSBs in SSB group 2.

[0243] - The downlink signal corresponding to the first TAG group corresponds to an SSB belonging to SSB group 1. The downlink signal corresponding to the second TAG group corresponds to an SSB belonging to SSB group 2, or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList) that is quasi-co-located with an SSB in SSB group 2.

[0244] The downlink signal corresponding to the first TAG group corresponds to a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which is quasi-co-located with an SSB in SSB group 1. The downlink signal corresponding to the second TAG group corresponds to an SSB belonging to SSB group 2.

[0245] When the UE receives the seventh information N TA and / or the eighth information N TA_offset The UE performs a first measurement. The first measurement includes, but is not limited to, at least one of the following: Layer 1 (L1)-RSRP measurement, L1-SINR (Signal to Interference plus Noise Ratio) measurement, RadioLink Monitor (RLM) measurement, Beam Failure Detection (BFD) measurement, and Candidate Beam Detection (CBD) measurement. When the UE performs the first measurement, scheduling constraints are determined by the UE and configuration information. In some embodiments, scheduling constraints are determined based on at least one of the following:

[0246] Seventh Information N TA ;

[0247] Eighth Information

[0248] Second information;

[0249] Third information;

[0250] Fourth piece of information.

[0251] For example, the UE does not expect to transmit at least one of the following: uplink control channel, uplink data channel, channel sounding signal, and receive downlink signal on the symbol corresponding to the SSB or CSI-RS used to perform the first measurement, or on N5 OFDM symbols before and / or after that symbol. Here, N5 is determined by the UE and configuration information. In some embodiments, N5 is determined based on at least one of the following:

[0252] Seventh Information N TA ;

[0253] Eighth Information

[0254] Second information;

[0255] Third information;

[0256] Fourth piece of information.

[0257] Configuration 3:

[0258] The fifth piece of information includes at least one of the following:

[0259] - The synchronization signal block (SSB) of the serving cell and the synchronization signal block of the neighboring cell. The neighboring cell can also be a special type of neighboring cell, such as another PCI cell configured within the serving cell.

[0260] - Control Resource Set (CORESET), where CORESET0 is a special CORESET used for parsing the first System Information Block (SIB1) at the initial RRC connection.

[0261] -CSI-RS (Channel State Information-Reference Signal), which is quasi-co-located (QCL) with the associated SSB configuration resources.

[0262] The sixth piece of information is base station configuration information, which is sent by the base station to the UE. This sixth piece of information includes a list of Transmission Configuration Indicator (TCI) states configured for the UE, such as dl-OrJointTCI-StateList.

[0263] Upon receiving the fifth and sixth information messages mentioned above, the fifth message indicates that the UE is configured in inter-cell Inter-Cell Beam Management (ICBM) mode. Therefore, when the UE transmits uplink frames (or uplink signals), the transmission time needs to be referenced to the reception time of the downlink frames (or downlink signals) received by the UE. When transmitting via the Physical Random Access Channel (PRACH), the UE should advance the downlink reference point by (N...). TA +N TA_offset )×T c Send PRACH. Where Tc = 1 / (480*1000*4096) seconds.

[0264] When sending the initial PRACH, N TA =0, N TA_offset This refers to the configuration information sent by the base station to the UE. If no configuration is specified, the default value is used. The downlink reference point corresponds to the downlink signal of the first detection path (time domain) of the reference cell, which can be determined in the following way:

[0265] 1. Determine that the downlink signals include the Serving cell's SSB and the additional PCI cell's SSB.

[0266] 2. The downlink signal is defined as: a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList) that is quasi-co-located with the serving cell's SSB; and a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList) that is quasi-co-located with another PCI cell's SSB.

[0267] When the m-TRP at the base station receives the PRACH signal sent by the UE, the m-TRP detects the PRACH signal to estimate the path loss of the UE to each TRP, and uses this information to configure the seventh information N. TA and / or the eighth information N TA_offset The seventh and / or eighth information is sent to the UE by the base station. The UE receives configurations for multiple Timing Advance Groups (TAGs), such as TAG1 and TAG2. Seventh information N TA and / or the eighth information N TA_offset For multiple tags, there are multiple configuration information tables, for example, N TA1 N represents the first TAG TA N TA2 N represents the second TAG TA N TA3 N represents the third TAG TA And so on. N TA_offset1 N represents the first TAG TA_offset N TA_offset2 N represents the second TAG TA_offset N TA_offset3 N represents the third TAG TA_offset And so on.

[0268] For TAG1, the UE should advance the downlink reference point (N). TA1 +N TA_offset1)×T c Send PUSCH / PUCCH / SRS. For TAG2, the UE should send the downlink reference point in advance (N). TA2 +N TA_offset2 )×T c Send PUSCH / PUCCH / SRS, and so on. The downlink reference point is consistent with the above description.

[0269] When the UE receives the seventh information N TA and / or the eighth information N TA_offset When the UE performs the first measurement, the first measurement includes, but is not limited to, at least one of the following: Layer 1 (L1)-RSRP measurement, L1-SINR (Signal to Interference plus Noise Ratio) measurement, RadioLink Monitor (RLM) measurement, Beam Failure Detection (BFD) measurement, and Candidate Beam Detection (CBD) measurement. When the UE performs the first measurement, scheduling constraints are determined by the UE and configuration information. In some embodiments, scheduling constraints are determined based on at least one of the following:

[0270] Seventh Information N TA ;

[0271] Eighth Information

[0272] Second information;

[0273] Third information;

[0274] Fourth piece of information.

[0275] For example, the UE does not expect to transmit at least one of the following: uplink control channel, uplink data channel, channel sounding signal, and receive downlink signal on the symbol corresponding to the SSB or CSI-RS used to perform the first measurement, or on N6 OFDM symbols before and / or after that symbol. Here, N6 is determined by the UE and configuration information. In some embodiments, N6 is determined based on at least one of the following:

[0276] Seventh Information N TA ;

[0277] Eighth Information

[0278] Second information;

[0279] Third information;

[0280] Fourth piece of information.

[0281] In the scheme implemented in this disclosure, the user equipment (UE) reports at least one of the following information—a first information, a second information, a third information, and a fourth information—in the RRC connected state (RRC_CONNECTED). The first information indicates that the UE supports the capability of multiple tags in Intra-cellm-TRP. The third information indicates that the UE supports L1 measurement capability when the time difference between the transmission timings of multiple tags is greater than the CP condition.

[0282] The UE receives the fifth information sent by the base station, which indicates the configuration information of m-TRP.

[0283] The following is in conjunction with the appendix Figures 6-8 The solutions for different application scenarios of the embodiments of this application are described in detail.

[0284] Example 1:

[0285] The fifth piece of information mentioned above includes at least one of the following:

[0286] - A single Synchronization Signal Block (SSB).

[0287] - Control Resource Set (CORESET), where CORESET0 is a special CORESET used for parsing the first System Information Block (SIB1) at the initial RRC connection.

[0288] -CSI-RS (Channel State Information-Reference Signal), which is quasi-co-located (QCL) with the associated SSB configuration resources.

[0289] The sixth piece of information is base station configuration information, which is sent by the base station to the UE. This sixth piece of information includes a list of Transmission Configuration Indicator (TCI) states configured for the UE, such as dl-OrJointTCI-StateList.

[0290] In this embodiment, such as Figure 6As shown, the UE is configured in m-TRP mode within the cell. The UE receives downlink signals from one TRP, including fifth and sixth information. The remaining TRPs only transmit uplink signals, which can be configured to be transmitted with multiple TAGs, such as TAG1 and TAG2.

[0291] When the UE receives the fifth and sixth information messages mentioned above, and the fifth information message indicates that the UE is configured in intra-cell single-downlink control information (S-DCI) mode, then when the UE transmits uplink frames (or uplink signals), the transmission time needs to be referenced to the reception time of the downlink frames (or downlink signals) received by the UE. When transmitting the initial Physical Random Access Channel (PRACH), the UE should advance the downlink reference point by (N... TA +N TA_offset )×T c (This corresponds to the first time point mentioned above) Send PRACH (which corresponds to the second uplink signal mentioned above). Where Tc = 1 / (480*1000*4096) seconds.

[0292] When sending the initial PRACH, N TA =0, N TA_offset This is the configuration information sent by the base station to the UE. If no configuration is specified, the default value is used. The downlink reference point is the downlink signal of the first detection path (in the time domain) of the reference cell (which may correspond to the second downlink signal mentioned above). This downlink signal can be an SSB or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList).

[0293] When the m-TRP at the base station receives the PRACH signal sent by the UE, the m-TRP detects the PRACH signal to estimate the path loss of the UE to each TRP, and uses this information to configure the seventh information N. TA and / or the eighth information N TA_offset The seventh and / or eighth information is sent to the UE by the base station. The UE receives configurations for multiple Timing Advance Groups (TAGs), such as TAG1 and TAG2. Seventh information N TA and / or the eighth information N TA_offset For multiple tags, there are multiple configuration information tables, for example, N TA1 N represents the first TAG TA N TA2 N represents the second TAG TAN TA3 N represents the third TAG TA And so on. N TA_offset1 N represents the first TAG TA_offset N TA_offset2 N represents the second TAG TA_offset N TA_offset3 N represents the third TAG TA_offset And so on.

[0294] For TAG1, the UE should advance the downlink reference point (N). TA1 +N TA_offset1 )×T c Send PUSCH / PUCCH / SRS. For TAG2, the UE should send the downlink reference point in advance (N). TA2 +N TA_offset2 )×T c Send PUSCH / PUCCH / SRS, and so on. The downlink reference point is the downlink signal of the first detection path (in the time domain) of the reference cell, which can be the downlink signal associated with the SSB and any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList).

[0295] When the UE receives the seventh information N TA and / or the eighth information N TA_offset The UE performs the first measurement. The first measurement includes, but is not limited to, at least one of the following: Layer 1 (L1)-RSRP measurement, L1-SINR (Signal to Interference plus Noise Ratio) measurement, RadioLink Monitor (RLM) measurement, Beam Failure Detection (BFD) measurement, and Candidate Beam Detection (CBD) measurement. When the UE performs the first measurement, scheduling restrictions are imposed by the seventh information N. TA and / or the eighth information N TA_offset And the third piece of information is confirmed.

[0296] When the UE performs L1-RSRP, L1-SINR, RLM, or BFD measurements, scheduling restrictions are based on the seventh information N. TA and / or the eighth information N TA_offset And third information to determine, for example:

[0297] - In frequency range 1 (FR1), if the SCS of the configured L1 measurement resource is the same as the SCS of the PDSCH / PDCCH, no scheduling restrictions are required.

[0298] -If the SCS of the configured L1 measurement resources is different from the SCS of the PDSCH / PDCCH:

[0299] - If the UE supports simultaneousRxDataSSB-DiffNumerology, no scheduling restrictions are required;

[0300] - If the UE does not support simultaneousRxDataSSB-DiffNumerology, then the UE does not expect to transmit PUCCH / PUSCH / SRS (which can correspond to the first uplink signal above) or receive PDCCH / PDSCH / CSI-RS for tracking / CSI-RS for CQI (which can correspond to the first downlink signal above) on SSB symbols or CSI-RS symbols (configured as L1-RSRP or RLM, BFD or L1-SINR) and on the N7 symbols before or after them. If the third information indicates that the UE does not have this capability, then N7 = 1. If the third information indicates that the UE has this capability, the value of N7 is based on the seventh information of multiple TAGs and / or

[0301] Or the temporal relative relationship of the eighth information is determined.

[0302] In some alternative embodiments, N7 is determined in one of the following ways:

[0303] -N7 = ceil(N between multiple tags) TA +N TA_offset )×T c Maximum time difference / OFDM symbol length.

[0304] -N7 = ceil(multiple tags (N TA +N TA_offset )×T c (Maximum value in / OFDM symbol length)

[0305] -N7 = ceil(N between multiple tags) TA ×T c Maximum time difference

[0306] / OFDM symbol length).

[0307] -N7 = ceil(multiple tags ((NTA +N TA_offset )×T c -(N Ta_ref +N TA_offset_rec ))×T d The maximum time difference / OFDM symbol length). Where N TA_ref N represents the timed advance group where the current serving cell has a downlink signal. TA N TA_offset_ref N represents the timed advance group where downlink signals exist in the current serving cell. TA_offset .

[0308] -

[0309] - In frequency range 2 (FR2),

[0310] -If the configuration resources for L1 measurement are based on CSI-RS, then the CSI-RS

[0311] Quasi-co-addressable TCI state with active PDSCH / PDCCH and CSI-RS

[0312] If the resource is configured to repeat, no scheduling restrictions are required;

[0313] Otherwise, the UE does not expect to send PUCCH / PUSCH / SRS or receive PDCCH / PDSCH / CSI-RS for tracking on the SSB symbol or CSI-RS symbol (configured as L1-RSRP or RLM, BFD or L1-SINR) and on the N8 symbols before or after it.

[0314] / CSI-RS for CQI. If the third information indicates that the UE does not have this capability, then N8 = 1. If the third information indicates that the UE has this capability,

[0315] The value of N8 is determined based on the temporal relative relationship between the seventh and / or eighth information of multiple TAGs.

[0316] -Including one of the following methods:

[0317] -N8 = ceil(N between multiple tags) TA +N TA_offset )×T c Maximum time difference / OFDM symbol length.

[0318] -N8 = ceil(multiple tags (N TA +N TA_offset )×Tc (Maximum value in / OFDM symbol length)

[0319] -N8 = ceil(N between multiple tags) TA ×T c Maximum time difference

[0320] / OFDM symbol length).

[0321] -N8 = ceil(multiple tags ((N TA +N TA_offset )×T c -

[0322] (N TA_ref +N TA_offset_ref ))×T c (Maximum time difference / OFDM symbol length). Where N TA_ref N represents the timed advance group where downlink signals exist in the current serving cell. TA N TA_offset_ref N represents the timed advance group where downlink signals exist in the current serving cell. TA_offset .

[0323] Among them, simultaneousRxDataSSB-DiffNumerology indicates that the UE has the ability to simultaneously receive different sets of parameter SSBs and data.

[0324] In this embodiment, the UE can support communication between multiple TRPs within the same cell, even with a larger cell radius deployment. Furthermore, it can support using more uplink-only TRPs even when there is only one downlink-capable TRP within the same cell, thereby enhancing uplink coverage and communication reliability. Simultaneously, this network deployment also improves measurement accuracy and reliability by reducing other interference signals within the downlink measurement time unit, assisting the base station in making more suitable subsequent scheduling. This allows the UE to operate more effectively in more flexible base station deployments and scheduling, improving communication efficiency between the network and the UE.

[0325] Example 2:

[0326] The fifth piece of information mentioned above includes at least one of the following:

[0327] - Multiple Synchronization Signal Blocks (SSBs).

[0328] - Control Resource Set (CORESET), where CORESET0 is a special CORESET used for parsing the first System Information Block (SIB1) at the initial RRC connection.

[0329] -CSI-RS (Channel State Information-Reference Signal), which is quasi-co-located (QCL) with the associated SSB configuration resources.

[0330] The sixth piece of information is base station configuration information, which is sent by the base station to the UE. This sixth piece of information includes a list of Transmission Configuration Indicator (TCI) states configured for the UE, such as dl-OrJointTCI-StateList.

[0331] When the UE receives the fifth and sixth information messages mentioned above, and the fifth information message indicates that the UE is configured in intra-cell single-downlink control information (S-DCI) mode, then when the UE transmits uplink frames (or uplink signals), the transmission time needs to be referenced to the reception time of the downlink frames (or downlink signals) received by the UE. When transmitting the initial Physical Random Access Channel (PRACH), the UE should advance the downlink reference point by (N... TA +N TA_offset )×T c Send PRACH. Where Tc = 1 / (480*1000*4096) seconds.

[0332] In this embodiment, such as Figure 7 As shown, the UE is configured in m-TRP mode within the cell. The UE receives downlink signals from two TRPs, including fifth and sixth information. The remaining TRPs only transmit uplink signals, which can be configured to be transmitted with multiple TAGs, such as TAG1 and TAG2.

[0333] When sending the initial PRACH, N TA =0, N TA_offsetThis refers to the configuration information sent by the base station to the UE. If no configuration is specified, the default value is used. The downlink reference point is the downlink signal of the first detection path (in the time domain) of the reference cell, which can be determined in the following way:

[0334] Multiple SSBs are grouped based on an index, for example, X groups, from the first group to the second, up to the Xth. In some embodiments, there are L SSB indices, starting from 0, with each L / X forming a group. For example, if the SSBs are divided into 2 groups, then 0 to (L / 2)-1 is one group, and L / 2 to L-1 is the other group; or, odd numbers form one group and even numbers form another group.

[0335] Downlink signals are determined by multiple distinct groups, which are determined by multiple SSB groups or downlink signals quasi-co-located with SSBs. The downlink signal corresponding to the first TAG group corresponds to an SSB belonging to SSB group 1 or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which quasi-co-located with the SSBs in SSB group 1. The downlink signal corresponding to the second TAG group corresponds to an SSB belonging to SSB group 2 or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which quasi-co-located with the SSBs in SSB group 2. Therefore, the determination of downlink signals includes at least one of the following:

[0336] - The downlink signal is determined by two different SSB groups. The downlink signal corresponding to the first TAG group corresponds to the SSB belonging to SSB group 1, and the downlink signal corresponding to the second TAG group corresponds to the SSB belonging to SSB group 2.

[0337] - Downlink signals are determined by the TCI-States associated with the SSB groups in the TCI-State list. The downlink signal corresponding to the first TAG group corresponds to a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which is quasi-co-located with the SSBs in SSB group 1. The downlink signal corresponding to the second TAG group corresponds to a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which is quasi-co-located with the SSBs in SSB group 2.

[0338] - The downlink signal corresponding to the first TAG group corresponds to an SSB belonging to SSB group 1. The downlink signal corresponding to the second TAG group corresponds to an SSB belonging to SSB group 2, or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList) that is quasi-co-located with an SSB in SSB group 2.

[0339] The downlink signal corresponding to the first TAG group corresponds to a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which is quasi-co-located with the SSBs in SSB group 1. The downlink signal corresponding to the second TAG group corresponds to an SSB belonging to SSB group 2.

[0340] When the m-TRP at the base station receives the PRACH signal sent by the UE, the m-TRP detects the PRACH signal to estimate the path loss from the UE to the TRP, and uses this information to configure the seventh piece of information N. TA and / or the eighth information N TA_offset The seventh and / or eighth information is sent to the UE by the base station. The UE receives configurations for multiple Timing Advance Groups (TAGs), such as TAG1 and TAG2. Seventh information N TA and / or the eighth information N TA_offset For multiple tags, there are multiple configuration information tables, for example, N TA1 N represents the first TAG TA N TA2 N represents the second TAG TA N TA3 N represents the third TAG TA And so on. N TA_offset1 N represents the first TAG TA_offset N TA_offset2 N represents the second TAG TA_offset N TA_offset3 N represents the third TAG TA_offset And so on.

[0341] For TAG1, the UE should advance the downlink reference point (N). TA1 +N TA_offset1 )×T c Send PUSCH / PUCCH / SRS. For TAG2, the UE should send the downlink reference point in advance (N). TA2 +N TA_offset2 )×T cSend PUSCH / PUCCH / SRS, and so on. The downlink reference point is the downlink signal of the first detection path (in the time domain) of the reference cell, which can be determined in the following way:

[0342] Multiple SSBs are grouped based on an index, for example, X groups, from the first group to the second, up to the Xth. In some embodiments, there are L SSB indices, starting from 0, with each L / X forming a group. For example, if the SSBs are divided into 2 groups, then 0 to (L / 2)-1 is one group, and L / 2 to L-1 is the other group; or, odd numbers form one group and even numbers form another group.

[0343] Downlink signals are determined by multiple distinct groups, which are determined by multiple SSB groups or downlink signals quasi-co-located with SSBs. The downlink signal corresponding to the first TAG group corresponds to an SSB belonging to SSB group 1 or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which quasi-co-located with the SSBs in SSB group 1. The downlink signal corresponding to the second TAG group corresponds to an SSB belonging to SSB group 2 or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which quasi-co-located with the SSBs in SSB group 2. Therefore, the determination of downlink signals includes at least one of the following:

[0344] - The downlink signal is determined by two different SSB groups. The downlink signal corresponding to the first TAG group corresponds to the SSB belonging to SSB group 1, and the downlink signal corresponding to the second TAG group corresponds to the SSB belonging to SSB group 2.

[0345] - Downlink signals are determined by the TCI-States associated with the SSB groups in the TCI-State list. The downlink signal corresponding to the first TAG group corresponds to a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which is quasi-co-located with the SSBs in SSB group 1. The downlink signal corresponding to the second TAG group corresponds to a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which is quasi-co-located with the SSBs in SSB group 2.

[0346] - The downlink signal corresponding to the first TAG group corresponds to an SSB belonging to SSB group 1. The downlink signal corresponding to the second TAG group corresponds to an SSB belonging to SSB group 2, or a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList) that is quasi-co-located with an SSB in SSB group 2.

[0347] The downlink signal corresponding to the first TAG group corresponds to a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList), which is quasi-co-located with an SSB in SSB group 1. The downlink signal corresponding to the second TAG group corresponds to an SSB belonging to SSB group 2.

[0348] When the UE receives the seventh information N TA and / or the eighth information N TA_offset When the UE performs the first measurement, the first measurement includes, but is not limited to, at least one of the following: Layer 1 (L1)-RSRP measurement, L1-SINR (Signal to Interference plus Noise Ratio) measurement, RadioLink Monitor (RLM) measurement, Beam Failure Detection (BFD) measurement, and Candidate Beam Detection (CBD) measurement. When the UE performs the first measurement, scheduling constraints are determined by the UE and configuration information, including at least one of the following:

[0349] Seventh Information N TA ;

[0350] Eighth Information

[0351] Second information;

[0352] Third information;

[0353] Fourth piece of information.

[0354] For example: when the UE performs L1-RSRP, L1-SINR, RLM, or BFD measurements:

[0355] - In frequency range 1 (FR1), if the SCS of the configured L1 measurement resource is the same as the SCS of the PDSCH / PDCCH, no scheduling restrictions are required.

[0356] -If the SCS of the configured L1 measurement resources is different from the SCS of the PDSCH / PDCCH:

[0357] - If the UE supports simultaneousRxDataSSB-DiffNumerology, no scheduling restrictions are required;

[0358] - If the UE does not support simultaneousRxDataSSB-DiffNumerology, then the UE does not expect to transmit PUCCH / PUSCH / SRS or receive PDCCH / PDSCH / CSI-RS for tracking / CSI-RS for CQI on SSB symbols or CSI-RS symbols (configured as L1-RSRP or RLM, BFD or L1-SINR) and on the N9 symbols before or after them. If the third information indicates that the UE does not have this capability, then Y1 = 1. If the third information indicates that the UE has this capability, the value of Y1 is determined based on the temporal relative relationship of the seventh and / or eighth information of multiple TAGs.

[0359] In some alternative embodiments, Y1 is determined in one of the following ways:

[0360] -Y1 = ceil(between multiple tags (N) TA +N TA_offset )×T c Maximum time difference / OFDM symbol length.

[0361] -Y1 = ceil(multiple TAGs (N) TA +N TA_offset )×T c (Maximum value in / OFDM symbol length)

[0362] -Y1 = ceil(N between multiple TAGs) TA ×T c Maximum time difference / OFDM symbol length.

[0363] -Y1 = ceil(multiple TAGs ((N) TA +N TA_offset )×T c -(N TA_ref +N TA_offset_ref ))×T c (Maximum time difference / OFDM symbol length). Where N TA_ref N represents the timed advance group where downlink signals exist in the current serving cell. TA N TA_offset_refN represents the timed advance group where downlink signals exist in the current serving cell. TA_offset .

[0364] If the second information indicates that the UE does not have this capability, then Y2 = 1. If the second information indicates that the UE has this capability, Y2 = ceil(RTD / OFDM symbol length), where RTD is the measured reception time difference. N9 = operator(Y1, Y2), where operator can be a function that takes the maximum value, a function that takes the minimum value, or a function that takes one of these values.

[0365] -

[0366] - In frequency range 2 (FR2),

[0367] - If the configuration resources for L1 measurement are based on CSI-RS, and the CSI-RS is quasi-co-located with the active TCI state of PDSCH / PDCCH and the CSI-RS resource is configured to repeat, then no scheduling restriction is required.

[0368] Otherwise, the UE does not expect to transmit PUCCH / PUSCH / SRS or receive PDCCH / PDSCH / CSI-RS for tracking / CSI-RS for CQI on SSB symbols or CSI-RS symbols (configured as L1-RSRP or RLM, BFD or L1-SINR) and on the N10 symbols before or after them. If the third information indicates that the UE does not have this capability, then Y1 = 1. If the third information indicates that the UE has this capability, the value of Y1 is determined based on the temporal relative relationship of the seventh and / or eighth information of multiple TAGs.

[0369] In some alternative embodiments, Y1 is determined in one of the following ways:

[0370] -Y1 = ceil(between multiple tags (N) TA +N TA_offset )×T c Maximum time difference / OFDM symbol length.

[0371] -Y1 = ceil(multiple TAGs (N) TA +N TA_offset )×T c (Maximum value in / OFDM symbol length)

[0372] -Y1 = ceil(N between multiple TAGs) TA ×T cMaximum time difference / OFDM symbol length.

[0373] -Y1 = ceil(multiple TAGs ((N) TA +N TA_offset )×T c -(N TA_ref +N TA_offset_ref ))×T c (Maximum time difference / OFDM symbol length). Where N TA_ref N represents the timed advance group where downlink signals exist in the current serving cell. TA N TA_offset_ref N represents the timed advance group where downlink signals exist in the current serving cell. TA_offset .

[0374] - If the second information indicates that the UE does not have this capability, then Y2 = 1. If the second information indicates that the UE has this capability, Y2 = ceil(RTD / OFDM symbol length), where RTD is the measured reception time difference. N10 = operator(Y1, Y2), where operator can be a function that takes the maximum value, a function that takes the minimum value, or a function that takes one of these values.

[0375] Among them, simultaneousRxDataSSB-DiffNumerology indicates that the UE has the ability to simultaneously receive different sets of parameter SSBs and data.

[0376] In this embodiment, the UE can support communication with multiple TRPs within the same cell, even with a larger cell radius deployment. Furthermore, it can support using more uplink-only TRPs when there are multiple downlink-transmitting TRPs within the same cell, thereby enhancing uplink coverage and communication reliability. Simultaneously, this network deployment also improves measurement accuracy and reliability by reducing other interference signals within the downlink measurement time unit, assisting the base station in making more suitable subsequent scheduling. This allows the UE to operate more effectively in more flexible base station deployments and scheduling, improving communication efficiency between the network and the UE.

[0377] Example 3:

[0378] The fifth piece of information includes at least one of the following:

[0379] - The synchronization signal block (SSB) of the serving cell and the synchronization signal block of another PCI cell.

[0380] - Control Resource Set (CORESET), where CORESET0 is a special CORESET used for parsing the first System Information Block (SIB1) at the initial RRC connection.

[0381] -CSI-RS (Channel State Information-Reference Signal), which is the quasi-colocation (QCL) of the associated SSB configuration resources.

[0382] The sixth piece of information is base station configuration information, which is sent by the base station to the UE. This sixth piece of information includes a list of Transmission Configuration Indicator (TCI) states configured for the UE, such as dl-OrJointTCI-StateList.

[0383] Upon receiving the fifth and sixth information messages mentioned above, the fifth message indicates that the UE is configured in inter-cell Inter-Cell Beam Management (ICBM) mode. Therefore, when the UE transmits uplink frames (or uplink signals), the transmission time needs to be referenced to the reception time of the downlink frames (or downlink signals) received by the UE. When transmitting via the Physical Random Access Channel (PRACH), the UE should advance the downlink reference point by (N...). TA +N TA_offset )×T c Send PRACH. Where Tc = 1 / (480*1000*4096) seconds.

[0384] In this embodiment, such as Figure 8 As shown, the UE is configured in inter-cell m-TRP mode. The UE receives downlink signals from TRPs in two different cells, including fifth and sixth information. The remaining TRPs only transmit uplink signals, which can be configured to be transmitted with multiple TAGs, such as TAG1 and TAG2.

[0385] When sending the initial PRACH, N TA =0, N TA_offsetThis refers to the configuration information sent by the base station to the UE. If no configuration is specified, the default value is used. The downlink reference point is the downlink signal of the first detection path (in the time domain) of the reference cell, which can be determined in the following way:

[0386] 3. Determine that the downlink signals include the Serving cell's SSB and the additional PCI cell's SSB.

[0387] 4. The downlink signal is defined as: a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList) that is quasi-co-located with the serving cell's SSB; and a downlink signal associated with any TCI-State in the TCI-State list (e.g., dl-OrJointTCI-StateList) that is quasi-co-located with another PCI cell's SSB.

[0388] When the m-TRP at the base station receives the PRACH signal sent by the UE, the m-TRP detects the PRACH signal to estimate the path loss of the UE to each TRP, and uses this information to configure the seventh information N. TA and / or the eighth information N TA_offset The seventh and / or eighth information is sent to the UE by the base station. The UE receives configurations for multiple Timing Advance Groups (TAGs), such as TAG1 and TAG2. Seventh information N TA and / or the eighth information N TA_offset For multiple tags, there are multiple configuration information tables, for example, N TA1 N represents the first TAG TA N TA2 N represents the second TAG TA N TA3 N represents the third TAG TA And so on. N TA_offset1 N represents the first TAG TA_offset N TA_offset2 N represents the second TAG TA_offset N TA_offset3 N represents the third TAG TA_offset And so on.

[0389] For TAG1, the UE should advance the downlink reference point (N). TA1 +N TA_offset1 )×T c Send PUSCH / PUCCH / SRS. For TAG2, the UE should send the downlink reference point in advance (N).TA2 +N TA_offset2 )×T c Send PUSCH / PUCCH / SRS, and so on. The downlink reference point is consistent with the above description.

[0390] When the UE receives the seventh information N TA and / or the eighth information N TA_offset When the UE performs the first measurement, the first measurement includes, but is not limited to, at least one of the following: Layer 1 (L1)-RSRP measurement, L1-SINR (Signal to Interference plus Noise Ratio) measurement, RadioLink Monitor (RLM) measurement, Beam Failure Detection (BFD) measurement, and Candidate Beam Detection (CBD) measurement. When the UE performs the first measurement, scheduling constraints are determined by the UE and configuration information, including at least one of the following:

[0391] Seventh Information N TA ;

[0392] Eighth Information

[0393] Second information;

[0394] Third information;

[0395] Fourth piece of information.

[0396] For example: when the UE performs L1-RSRP, L1-SINR, RLM, or BFD measurements:

[0397] - In frequency range 1 (FR1), if the SCS of the configured L1 measurement resource is the same as the SCS of the PDSCH / PDCCH, no scheduling restrictions are required.

[0398] -If the SCS of the configured L1 measurement resources is different from the SCS of the PDSCH / PDCCH:

[0399] - If the UE supports simultaneousRxDataSSB-DiffNumerology, no scheduling restrictions are required;

[0400] - If the UE does not support simultaneousRxDataSSB-DiffNumerology, then the UE does not expect to transmit PUCCH / PUSCH / SRS or receive PDCCH / PDSCH / CSI-RS for tracking / CSI-RS for CQI on SSB symbols or CSI-RS symbols (configured as L1-RSRP or RLM, BFD or L1-SINR) and on the N11 symbols before or after them. If the third information indicates that the UE does not have this capability, then Y1 = 1. If the third information indicates that the UE has this capability, the value of Y1 is determined based on the temporal relative relationship of the seventh and / or eighth information of multiple TAGs.

[0401] In some alternative embodiments, Y1 is determined in one of the following ways:

[0402] -Y1 = ceil(between multiple tags (N) TA +N TA_offset )×T c Maximum time difference / OFDM symbol length.

[0403] -Y1 = ceil(multiple TAGs (N) TA +N TA_offset )×T c (Maximum value in / OFDM symbol length)

[0404] -Y1 = ceil(N between multiple TAGs) TA ×T c Maximum time difference / OFDM symbol length.

[0405] -Y1 = ceil(multiple TAGs ((N) TA +N TA_offset )×T c -(N TA_ref +N TA_offset_ref ))×T c (Maximum time difference / OFDM symbol length). Where N TA_ref N represents the timed advance group where downlink signals exist in the current serving cell. TA N TA_offset_ref N represents the timed advance group where downlink signals exist in the current serving cell. TA_offsetIf the second information indicates that the UE does not have this capability, then Y2 = 1. If the second information indicates that the UE has this capability, Y2 = ceil(RTD / OFDM symbol length), where RTD is the measured reception time difference between the serving cell and another PCI cell. N11 = operator(Y1, Y2), where operator can be a function that takes the maximum value, a function that takes the minimum value, or a function that takes one of these values.

[0406] - In frequency range 2 (FR2),

[0407] - If the configuration resources for L1 measurement are based on CSI-RS, and the CSI-RS is quasi-co-located with the active TCI state of PDSCH / PDCCH and the CSI-RS resource is configured to repeat, then no scheduling restriction is required.

[0408] Otherwise, the UE does not expect to transmit PUCCH / PUSCH / SRS or receive PDCCH / PDSCH / CSI-RS for tracking / CSI-RS for CQI on SSB symbols or CSI-RS symbols (configured as L1-RSRP or RLM, BFD or L1-SINR) and on the N12 symbols before or after them. If the third information indicates that the UE does not have this capability, Y1 = 1. If the third information indicates that the UE has this capability, the value of Y1 is determined based on the temporal relative relationship of the seventh and / or eighth information of multiple TAGs.

[0409] In some alternative embodiments, Y1 is determined in one of the following ways:

[0410] -Y1 = ceil(between multiple tags (N) TA +N TA_offset )×T c Maximum time difference / OFDM symbol length.

[0411] -Y1 = ceil(multiple TAGs (N) TA +N TA_offset )×T c (Maximum value in / OFDM symbol length)

[0412] -Y1 = ceil(N between multiple TAGs) TA ×T c Maximum time difference / OFDM symbol length.

[0413] -Y1 = ceil(multiple TAGs ((N) TA +NTA_offset )×T c -(N TA_ref +N TA_offset_ref ))×T c (Maximum time difference / OFDM symbol length). Where N TA_ref N represents the timed advance group where downlink signals exist in the current serving cell. TA N TA_offset_ref N represents the timed advance group where downlink signals exist in the current serving cell. TA_offset .

[0414] If the second information indicates that the UE does not have this capability, then Y2 = 1. If the second information indicates that the UE has this capability, Y2 = ceil(symbol length of RTD / OFDM), where RTD is the measured reception time difference between the serving cell and another PCI cell. N12 = operator(Y1, Y2), where operator can be a function that takes the maximum value, a function that takes the minimum value, or a function that takes one of these values.

[0415] Among them, simultaneousRxDataSSB-DiffNumerology indicates that the UE has the ability to simultaneously receive different sets of parameter SSBs and data.

[0416] In this embodiment, the UE can support communication between multiple TRPs in multiple cells with a larger cell radius. Furthermore, it can support using more uplink-only TRPs in multiple cells with multiple downlink-transmitting TRPs to enhance uplink coverage and communication reliability. Simultaneously, this network deployment can improve measurement accuracy and reliability by reducing other interference signals within the downlink measurement time unit, helping the base station to perform more suitable subsequent scheduling. This allows the UE to operate better in more flexible base station deployments and scheduling, improving communication efficiency between the network and the UE.

[0417] This application also provides an electronic device including a processor, and optionally, a transceiver and / or memory coupled to the processor, the processor being configured to perform the steps of the method provided in any optional embodiment of this application.

[0418] Figure 9 The diagram shows a structural schematic of an electronic device to which an embodiment of the present invention applies, such as... Figure 9 As shown, Figure 9The illustrated electronic device 4000 includes a processor 4001 and a memory 4003. The processor 4001 and memory 4003 are connected, for example, via a bus 4002. Optionally, the electronic device 4000 may further include a transceiver 4004, which can be used for data interaction between the electronic device and other electronic devices, such as sending and / or receiving data. It should be noted that in practical applications, the transceiver 4004 is not limited to one type, and the structure of the electronic device 4000 does not constitute a limitation on the embodiments of this application. Optionally, the electronic device may be a first network node, a second network node, or a third network node.

[0419] Processor 4001 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 4001 may also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0420] Bus 4002 may include a pathway for transmitting information between the aforementioned components. Bus 4002 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. Bus 4002 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 9 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0421] The memory 4003 may be ROM (Read Only Memory) or other types of static storage devices capable of storing static information and instructions, RAM (Random Access Memory) or other types of dynamic storage devices capable of storing information and instructions, or EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media, other magnetic storage devices, or any other medium capable of carrying or storing computer programs and capable of being read by a computer, without limitation herein.

[0422] The memory 4003 stores computer programs that execute embodiments of this application, and its execution is controlled by the processor 4001. The processor 4001 executes the computer programs stored in the memory 4003 to implement the steps shown in the foregoing method embodiments.

[0423] This application provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it can implement the steps and corresponding content of the aforementioned method embodiments.

[0424] This application also provides a computer program product, including a computer program that, when executed by a processor, can implement the steps and corresponding content of the aforementioned method embodiments.

[0425] The terms "first," "second," "third," "fourth," "1," "2," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in a sequence other than that shown in the figures or text.

[0426] It should be understood that although arrows indicate various operation steps in the flowcharts of this application's embodiments, the order in which these steps are implemented is not limited to the order indicated by the arrows. Unless explicitly stated herein, in some implementation scenarios of this application's embodiments, the implementation steps in each flowchart can be executed in other orders as required. Furthermore, some or all steps in each flowchart, based on the actual implementation scenario, may include multiple sub-steps or multiple stages. Some or all of these sub-steps or stages can be executed at the same time, and each sub-step or stage can also be executed at different times. In scenarios where execution times differ, the execution order of these sub-steps or stages can be flexibly configured according to requirements, and this application's embodiments do not limit this.

[0427] The above text and accompanying drawings are provided as examples only to help the reader understand this disclosure. They are not intended and should not be construed as limiting the scope of this disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art, based on the content disclosed herein, that changes can be made to the illustrated embodiments and examples, and other similar implementations based on the technical concept of this application can be adopted without departing from the scope of this disclosure, and these modifications and modifications will also fall within the protection scope of the embodiments of this application.

Claims

1. A method performed by a user equipment (UE) in a wireless communication system, characterized in that, include: Receive first configuration information and / or second configuration information, wherein the first configuration information includes first information related to the timing advance of each TAG in at least two timing advance groups TAG, and the second configuration information includes second information related to the synchronization information block SSB of the serving cell and / or neighboring cells; When the UE performs a measurement, it does not receive the first downlink signal and / or transmit the first uplink signal on the first time domain resource; The first time-domain resource is determined based on the first information and / or the second information corresponding to each TAG.

2. The method according to claim 1, characterized in that, The first time-domain resource includes: the second time-domain resource for which the UE performs the measurement, and N time units before and / or after the second time-domain resource; Wherein, N is determined based on the first information and / or the second information corresponding to each TAG.

3. The method according to claim 1, characterized in that, The first information includes N corresponding to each of the multiple TAGs. TA and / or N TA_offset , where N TA N represents the time advance amount configured in the time advance command. TA_offset This indicates the common timing advance for sending uplink signals in the corresponding TAG.

4. The method according to claim 1, characterized in that, Also includes: A second uplink signal is sent at a first time point, wherein the first time point is determined based on a downlink reference point, and the downlink reference point is determined based on the second downlink signal; The second downlink signal is determined based on at least one of the following: The SSB of the serving cell; The first physical cell identifier (PCI) is the SSB of the cell.

5. The method according to claim 4, characterized in that, The second downlink signal includes at least one of the following: The SSB of the serving cell of the UE; The SSB of the PCI cell; Downlink signals associated with a first TCI state in the Transmission Configuration Indication TCI State List, the first TCI state and the SSB quasi-co-address of the UE's serving cell; Downlink signals associated with the second TCI state in the TCI state list, the second TCI state and the SSB quasi-co-address of the cell of the first PCI.

6. The method according to any one of claims 1-5, characterized in that, N is also determined based on a first capability of the UE, wherein the first capability of the UE includes at least one of the following: The UE supports the ability to use at least two tags across multiple TRPs within a cell; The UE supports the ability to use at least two tags for multiple TRPs within a cell. The UE supports the ability to measure Layer L1 under the condition that the time difference between the transmission timing of at least two TAGs is greater than that under the condition of cyclic prefix CP.

7. The method according to claim 6, characterized in that, When the UE supports the first capability, N is determined based on the first information and / or the second information corresponding to each TAG; When the UE does not support the first capability, N is a fixed value.

8. The method according to claim 2, characterized in that, N can be determined in any of the following ways: The time advance is determined by the ratio between the maximum difference between the first timing advances of multiple tags and the length of the time unit. The timing advance is determined based on the ratio between the maximum value of the first timing advance of multiple tags and the length of the time unit. The time advance is determined by the ratio between the maximum value of the difference between the first and second timing advances of multiple tags and the length of the time unit. The parameter is determined based on the first parameter and the second parameter, wherein the first parameter is determined in any of the following ways: The time advance is determined by the ratio between the maximum difference between the first timing advances of multiple tags and the length of the time unit. The timing advance is determined based on the ratio between the maximum value of the first timing advance of multiple tags and the length of the time unit. The time advance is determined by the ratio between the maximum value of the difference between the first and second timing advances of multiple tags and the length of the time unit. The second parameter is determined based on the ratio between the reception time difference of the SSB of the serving cell and the SSB of the first PCI cell included in the second information and the time unit length. Wherein, the certain advance amount is based on N included in the first information. TA and / or N TA_offset Certain; The second timing advance is based on the N of the TAG where the current serving cell has a downlink signal. TA and / or N TA_offset It's confirmed.

9. A method performed by a base station in a wireless communication system, characterized in that, include: Send first configuration information and / or second configuration information to user equipment (UE), wherein the first configuration information includes first information related to the timing advance of each TAG in at least two timing advance groups (TAGs), and the second configuration information includes second information related to the synchronization information block (SSB) of the serving cell and / or neighboring cells; Do not receive the first downlink signal and / or transmit the first uplink signal on the first time domain resource; The first time-domain resource is determined based on the first information and / or the second information corresponding to each TAG.

10. The method according to claim 9, characterized in that, The first time unit includes: the second time-domain resource for which the UE performs the measurement, and N time units before and / or after the second time-domain resource; Wherein, N is determined based on the first information and / or the second information corresponding to each TAG.

11. The method according to claim 9, characterized in that, The first information includes N corresponding to each of the multiple TAGs. TA and / or N TA_offset , where N TA N represents the time advance amount configured in the time advance command. TA_offset This indicates the common timing advance for sending uplink signals in the corresponding TAG.

12. The method according to claim 9, characterized in that, Also includes: Receive a second uplink signal sent by the UE at a first time point, wherein the first time point is determined based on a downlink reference point, and the downlink reference point is determined based on the second downlink signal; The second downlink signal is determined based on at least one of the following: The SSB of the serving cell; The first physical cell identifier (PCI) is the SSB of the cell.

13. A user equipment in a wireless communication system, characterized in that, include: A transceiver, and at least one processor coupled to the transceiver, the at least one processor being configured to perform the method of any one of claims 1 to 8.

14. A user equipment in a wireless communication system, characterized in that, include: A transceiver, and at least one processor coupled to the transceiver, the at least one processor being configured to perform the method of any one of claims 9 to 12.

15. A computer-readable storage medium, characterized in that, The storage medium stores a computer program that, when executed by a processor, performs the method according to any one of claims 1 to 8, or 9 to 12.

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