CN117527014A

CN117527014A - Method for transmitting and receiving beam information and equipment

Info

Publication number: CN117527014A
Application number: CN202211204542.1A
Authority: CN
Inventors: 熊琦; 陈哲; 张飒
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2022-07-25
Filing date: 2022-09-29
Publication date: 2024-02-06

Abstract

The invention provides a method for transmitting and receiving beam information and corresponding equipment, wherein the method comprises the following steps: receiving, from a base station, information related to a signal beam related to a first mode of the base station; and performing a communication-related operation based on the information related to the signal beam related to the first mode of the base station.

Description

Method for transmitting and receiving beam information and equipment

Technical Field

The present invention relates to a method for transmitting and receiving beam information in a wireless communication system, and a device thereof.

Background

In order to meet the increasing demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or quasi 5G communication systems. Therefore, a 5G or quasi 5G communication system is also referred to as a "super 4G network" or a "LTE-after-system".

The 5G communication system is implemented in a higher frequency (millimeter wave) band, for example, a 60GHz band, to achieve a higher data rate. In order to reduce propagation loss of radio waves and increase transmission distance, beamforming, massive Multiple Input Multiple Output (MIMO), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, massive antenna techniques are discussed in 5G communication systems.

Further, in the 5G communication system, development of system network improvement is being performed based on advanced small cells, cloud Radio Access Networks (RANs), ultra dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, cooperative multipoint (CoMP), receiving-end interference cancellation, and the like.

In 5G systems, hybrid FSK and QAM modulation (FQAM) and Sliding Window Superposition Coding (SWSC) as Advanced Code Modulation (ACM), and Filter Bank Multicarrier (FBMC), non-orthogonal multiple access (NOMA) and Sparse Code Multiple Access (SCMA) as advanced access technologies have been developed.

Disclosure of Invention

According to an embodiment of the present disclosure, there is provided a method performed by a user equipment UE, including: receiving, from a base station, information related to a signal beam related to a first mode of the base station; and performing a communication-related operation based on the information related to the signal beam related to the first mode of the base station.

In one embodiment, the information related to the signal beam related to the first mode of the base station includes at least one of: a pattern of beams associated with the first mode of the base station for indicating transmit beam index information associated with the first mode of the base station; information of the signal beam indicating a beam associated with the first mode of the base station; a pattern of antenna arrays for indicating antennas associated with a first mode of the base station; codebook information transmitted by multiple-input multiple-output (MIMO); transmitting angle information of the beam; beam width information; a beam change flag indicating whether a beam configuration is adjusted to be associated with a first mode of the base station; and information indicating whether the first mode is activated.

In one embodiment, the pattern of beams associated with the first mode of the base station further comprises at least one of: time unit number information corresponding to a period of a beam associated with the first mode of the base station, time unit number information occupied by the beam associated with the first mode of the base station in one period, beam number information and/or position index information of the beam associated with the first mode of the base station in one period.

In one embodiment, wherein the communication-related operation comprises at least one of: measuring signal beams related to a first mode of the base station and reporting measurement results and/or preferred beam indexes; determining whether resources corresponding to an index of a signal beam are valid or available based on whether the signal beam associated with a first mode of a base station is turned off; receiving first delay configuration information which is related to a first mode and is sent for scheduled uplink signals from a base station, and obtaining a sending beam index indication of a PUCCH indicated by the base station through a PDCCH and/or a PDSCH in the obtained message 4, wherein the sending beam index indication comprises a sending beam index corresponding to a corresponding downlink beam index; at least one of the following operations is performed on a contention resolution timer in a random access procedure: extension, stop, reset, pause, restart.

In an embodiment, reporting a beam index of a measurement result and/or preference through a PRACH, or an msg3 PUSCH, or an msgA PUSCH, wherein determining whether a resource corresponding to the beam index is valid or available based on whether a signal beam related to a first mode of a base station is turned off includes: if the beam related to the first mode of the base station is turned off, determining that the Random Access Channel (RACH) resource corresponding to the beam index is unavailable or invalid; if a beam associated with a first mode of the base station is not turned off, determining that RACH resources corresponding to the beam index are available or valid, wherein the first delay configuration information includes a first number of time units, and receiving first delay configuration information for scheduled uplink signaling from the base station, including at least one of: receiving first delay configuration information for an uplink transmission scheduled by an RAR UL grant in response to the RAR or the RAR uplink UL grant by a random access response of message msg 2; receiving first delay configuration information of uplink transmission of msg3 retransmission scheduled by downlink control information DCI UL grant in a physical downlink control channel PDCCH corresponding to msg 3; the method includes receiving first delay configuration information for transmission of a PUCCH corresponding to an msg4 PDCCH and/or a physical downlink shared channel PDSCH through the PDCCH.

In one embodiment, the communication-related operation is performed a second number of time units after receiving the signal beam adjustment-related information.

In an embodiment, wherein said second number is pre-configured and/or fixedly configured and/or dynamically configured.

In one embodiment, the information related to the signal beam related to the first mode of the base station is received by at least one of: an implicit indication of said information related to signal beams related to a first mode of a base station; a specific common search space CSS and/or a specific set of control resources CORESET; at least one of msg2, msgB, msg4 in the random access procedure corresponds to PDCCH and/or PDSCH, and/or PDCCH scheduling msg3 retransmission.

In one embodiment, wherein: the signal is a synchronization signal block SSB, and the implicit indication relates to at least one of: using a sequence specific to the first mode; using a demodulation reference signal DMRS sequence specific to the first mode in the master information block MIB; carrying the information related to the signal beam related to the first mode of the base station in the content of the MIB; SSB time domain and/or frequency domain resource locations specific to the first mode are used.

In one embodiment, wherein a particular common search space CSS and/or a particular set of control resources CORESET comprises at least one of: CSS/CORESET specific to the first mode; a DCI format dedicated to a first mode, wherein the DCI carries the information related to the signal beam related to the first mode of the base station; an existing DCI format carrying the information related to the signal beam related to the first mode of the base station in the remaining bit field, and a DCI format carrying a DL grant, wherein the PDSCH corresponding to the DL grant includes the information related to the signal beam related to the first mode of the base station, and a PDCCH and/or PDSCH corresponding to at least one of msg2, msgB, msg4 in the random access procedure and/or a PDCCH for scheduling msg3 retransmission relate to at least one of the following: the remaining bit fields in the DCI format of the PDCCH corresponding to at least one of msg2, msgB and msg4 and/or the PDCCH for scheduling msg3 retransmission carry the information related to the signal beam related to the first mode of the base station; the MAC subheader in the PDSCH of the Msg2 or the msgB carries the information related to the signal beam related to the first mode of the base station; the RAR in PDSCH of Msg2 or msgB carries the information related to the signal beam related to the first mode of the base station.

In an embodiment, the PDSCH corresponding to the DL grant includes a PDSCH dedicated to the first mode or a system information block SIB dedicated to the first mode.

In one embodiment, wherein the information related to the signal beam related to the first mode of the base station is received from the base station under a first condition, the first condition comprises at least one of: the aggregation level of the search space of the UE meets a first threshold; the serving base station of the UE enters a first mode; the UE receives an indication that a base station starts a first mode; the beam selected by the UE is adjusted or changed, wherein the selected beam comprises a preferred beam that the UE has reported to the base station.

In one embodiment, wherein the signal beam comprises a beam of at least one of SSB, CSI-RS, and PRS signals.

According to an embodiment of the present disclosure, there is provided a method performed by a base station in a communication system, including: information related to the signal beam related to the first mode is transmitted to the user equipment UE.

In one embodiment, wherein the information related to the signal beam related to the first mode comprises at least one of: a pattern of beams associated with the first pattern for indicating transmit beam index information associated with the first pattern; information of the signal beam indicating a beam associated with the first mode; a pattern of antenna arrays for indicating antennas associated with the first mode; codebook information transmitted by MIMO; transmitting angle information of the beam; beam width information; a beam change flag indicating whether a beam configuration is adjusted to be associated with the first mode; information indicating whether the first mode is activated.

In one embodiment, wherein the pattern of beams associated with the first mode further comprises at least one of: the number of time units information corresponding to the period of the beam related to the first mode, the number of time units occupied by the beam related to the first mode in one period, the number of beams in one period and/or the position index information of the beam related to the first mode.

In one embodiment, the method further comprises at least one of: receiving, from the UE, a measurement result reported after the measurement of the signal beam related to the first mode and/or a preferred beam index; and transmitting first delay configuration information which is related to a first mode and is transmitted for scheduled uplink signals to the UE, and indicating a transmission beam index of a PUCCH to the UE through a PDCCH and/or a PDSCH in a message msg4, wherein the transmission beam index comprises a transmission beam index corresponding to a corresponding downlink beam index.

In an embodiment, the measurement result and/or the preferred beam index is received through PRACH, or msg3 PUSCH, or msgA PUSCH, wherein the first delay configuration information comprises a first number of time units, and the transmitting to the UE the first delay configuration information for scheduled uplink signaling comprises at least one of: transmitting first delay configuration information of uplink transmission scheduled by the RAR UL grant through the RAR or the RAR UL grant of msg 2; transmitting first delay configuration information of uplink transmission of msg3 retransmission scheduled by DCI UL grant in a PDCCH corresponding to msg3 through the PDCCH; first delay configuration information for transmission of a PUCCH corresponding to an msg4 PDCCH and/or PDSCH is transmitted through the PDCCH and/or PDSCH.

In one embodiment, wherein the information related to the signal beam related to the first mode is indicated by at least one of: an implicit indication of said information related to signal beams related to the first mode; a specific common search space CSS and/or a specific set of control resources CORESET; at least one of msg2, msgB, msg4 in the random access procedure corresponds to PDCCH and/or PDSCH, and/or PDCCH scheduling msg3 retransmission.

In one embodiment, wherein: the signal is SSB and the implicit indication relates to at least one of: using a sequence specific to the first mode; using DMRS sequences in the MIB that are specific to the first mode; carrying the information related to the signal beam related to the first mode in the content of the MIB; SSB time domain and/or frequency domain resource locations specific to the first mode are used.

In one embodiment, wherein a particular common search space CSS and/or a particular set of control resources CORESET comprises at least one of: CSS/CORESET specific to the first mode; a DCI format dedicated to a first mode, wherein the DCI carries information related to the signal beam related to the first mode; a DCI format carrying the information related to the signal beam related to the first mode in the residual bit field and a DCI format carrying a DL grant, wherein the PDSCH corresponding to the DL grant comprises the information related to the signal beam related to the first mode, and a PDCCH and/or a PDSCH corresponding to at least one of msg2, msgB and msg4 in the random access process and/or a PDCCH for scheduling msg3 retransmission relate to at least one of the following: the remaining bit fields in the DCI format of the PDCCH corresponding to at least one of msg2, msgB and msg4 and/or the PDCCH for scheduling msg3 retransmission carry the information related to the signal beam related to the first mode; the MAC subheader in the PDSCH of the Msg2 or the msgB carries the information related to the signal beam related to the first mode; the RAR in PDSCH of Msg2 or msgB carries the information related to the signal beam related to the first mode.

In one embodiment, wherein the information related to the signal beam related to the first mode is indicated to the UE under a first condition, the first condition comprising at least one of: the aggregation level of the search space of the UE meets a first threshold; the base station enters a first mode; sending an indication to the UE to initiate a first mode; the beam selected by the UE is adjusted or changed, wherein the selected beam comprises a preferred beam that the UE has reported to the base station.

According to an embodiment of the present disclosure, there is provided a communication apparatus including: a transceiver, and a processor coupled with the transceiver and configured to implement any one or combination of methods according to embodiments of the present disclosure. In one embodiment, the communication device may be a user equipment UE. In one embodiment, the communication device may be a base station device. It should be understood that the communication device may also be other devices for communicating in a communication system.

Drawings

Fig. 1 illustrates an example wireless network in accordance with various embodiments of the present disclosure;

fig. 2a and 2b illustrate example wireless transmit and receive paths according to this disclosure;

fig. 3a shows an example user equipment according to the present disclosure, and fig. 3b shows an example base station according to the present disclosure;

fig. 4 illustrates a schematic diagram of using a muting pattern to represent change information of a beam configuration according to an embodiment of the present disclosure;

fig. 5 shows a schematic diagram of applying first delay configuration information to PUSCH in accordance with an embodiment of the present disclosure;

fig. 6 shows a schematic diagram of applying first delay configuration information to a PUCCH according to an embodiment of the present disclosure; and

fig. 7 shows a schematic simplified block diagram of a communication device according to an embodiment of the present disclosure.

Detailed Description

The following description with reference to the accompanying drawings is provided to facilitate a thorough understanding of the various embodiments of the present disclosure as defined by the claims and their equivalents. The description includes various specific details to facilitate understanding but should be considered exemplary only. Accordingly, one of ordinary skill 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 may be omitted for clarity and conciseness.

The terms and phrases used in the following specification and claims are not limited to their dictionary meanings, but are used only by the inventors to enable a clear and consistent understanding of the disclosure. Accordingly, it should be apparent to those skilled in the art that the following descriptions of the various embodiments of the present disclosure are provided for illustration only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.

It should 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 such surfaces.

The terms "comprises" or "comprising" may refer to the presence of a corresponding disclosed function, operation or component that may be used in various embodiments of the present disclosure, rather than to the presence of one or more additional functions, operations or features. Furthermore, the terms "comprises" or "comprising" may be interpreted as referring to certain features, numbers, steps, operations, constituent elements, components, or combinations thereof, but should not be interpreted as excluding the existence of one or more other features, numbers, steps, operations, constituent elements, components, or combinations thereof.

The term "or" as used in the various embodiments of the present disclosure includes any listed term and all combinations thereof. For example, "a or B" may include a, may include B, or may include both a and B.

Unless defined differently, all terms (including technical or scientific terms) used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The general terms as defined in the dictionary are to be construed to have meanings consistent with the context in the relevant technical field, and should not be interpreted in an idealized or overly formal manner unless expressly so defined in the present disclosure.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (global system for mobile communications, GSM), code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication system, fifth generation (5th generation,5G) system, or New Radio (NR), and the like. In addition, the technical scheme of the embodiment of the application can be applied to future-oriented communication technologies.

Fig. 1 illustrates an example wireless network 100 in accordance with various embodiments of the present disclosure. The embodiment of the wireless network 100 shown in fig. 1 is for illustration only. Other embodiments of the wireless network 100 can be used without departing from the scope of this disclosure.

The wireless network 100 includes a gndeb (gNB) 101, a gNB 102, and a gNB 103.gNB 101 communicates with gNB 102 and gNB 103. The gNB 101 is also in communication with at least one Internet Protocol (IP) network 130, such as the Internet, a private IP network, or other data network.

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

The gNB 102 provides wireless broadband access to the network 130 for a first plurality of User Equipment (UEs) within the coverage area 120 of the gNB 102. The first plurality of UEs includes: UE 111, which may be located in a Small Business (SB); UE 112, which may be located in enterprise (E); UE 113, may be located in a WiFi Hotspot (HS); UE 114, which may be located in a first home (R); UE 115, which may be located in a second home (R); UE 116 may be a mobile device (M) such as a cellular telephone, wireless laptop, wireless PDA, etc. The gNB 103 provides wireless broadband access to the network 130 for a second plurality of UEs within the coverage area 125 of the gNB 103. The second plurality of UEs includes UE 115 and UE 116. In some embodiments, one or more of the gNBs 101-103 are capable of communicating with each other and with UEs 111-116 using 5G, long Term Evolution (LTE), LTE-A, wiMAX, or other advanced wireless communication technology.

The dashed lines illustrate the approximate extent of coverage areas 120 and 125, which are shown as approximately circular for illustration and explanation purposes only. It should be clearly understood that coverage areas associated with the gnbs, such as coverage areas 120 and 125, can have other shapes, including irregular shapes, depending on the configuration of the gnbs and the variations in the radio environment associated with natural and man-made obstructions.

As described in more detail below, one or more of gNB 101, gNB 102, and gNB 103 includes a 2D antenna array as described in embodiments of the disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 support codebook designs and structures for systems with 2D antenna arrays.

Although fig. 1 shows one example of a wireless network 100, various changes can be made to fig. 1. For example, the wireless network 100 can include any number of gnbs and any number of UEs in any suitable arrangement. Also, the gNB 101 is capable of communicating directly with any number of UEs and providing those UEs with wireless broadband access to the network 130. Similarly, each gNB 102-103 is capable of communicating directly with the network 130 and providing direct wireless broadband access to the network 130 to the UE. Furthermore, the 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).

Fig. 2a and 2b illustrate example wireless transmit and receive paths according to this disclosure. In the following description, transmit path 200 can be described as implemented in a gNB (such as gNB 102), while receive path 250 can be described as implemented in a UE (such as UE 116). However, it should be understood that the receive path 250 can be implemented in the gNB and the transmit path 200 can be implemented in the UE. In some embodiments, receive path 250 is configured to support codebook designs and structures for systems with 2D antenna arrays as described in embodiments of the present disclosure.

The transmit path 200 includes a channel coding and modulation block 205, a serial-to-parallel (S-to-P) block 210, an inverse N-point fast fourier transform (IFFT) block 215, a parallel-to-serial (P-to-S) block 220, an add cyclic prefix block 225, and an up-converter (UC) 230. The receive path 250 includes a down-converter (DC) 255, a remove cyclic prefix 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.

In transmit path 200, a channel coding and modulation block 205 receives a set of information bits, applies coding, such as Low Density Parity Check (LDPC) coding, and modulates input bits, such as with Quadrature Phase Shift Keying (QPSK) or Quadrature Amplitude Modulation (QAM), to generate a sequence of frequency domain modulation symbols. A serial-to-parallel (S-to-P) block 210 converts (such as demultiplexes) the serial modulation symbols into parallel data to generate N parallel symbol streams, where N is the number of IFFT/FFT points used in the gNB 102 and UE 116. The N-point IFFT block 215 performs an IFFT operation on the N parallel symbol streams to generate a time-domain output signal. Parallel-to-serial block 220 converts (such as multiplexes) the parallel time-domain output symbols from N-point IFFT block 215 to generate a serial time-domain signal. The add cyclic prefix block 225 inserts a cyclic prefix into the time domain signal. Up-converter 230 modulates (such as up-converts) the output of add cyclic prefix block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at baseband before being converted to RF frequency.

The RF signal transmitted from the gNB 102 reaches the UE 116 after passing through the wireless channel, and an operation inverse to that at the gNB 102 is performed at the UE 116. Down-converter 255 down-converts the received signal to baseband frequency and remove cyclic prefix 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 to a parallel time-domain signal. The 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. The channel decoding and demodulation block 280 demodulates and decodes the modulation symbols to recover the original input data stream.

Each of the gnbs 101-103 may implement a transmit path 200 that is similar to transmitting to UEs 111-116 in the downlink and may implement a receive path 250 that is similar to receiving from UEs 111-116 in the uplink. Similarly, each of the UEs 111-116 may implement a transmit path 200 for transmitting to the gNBs 101-103 in the uplink and may implement a receive path 250 for receiving from the gNBs 101-103 in the downlink.

Each of the components in fig. 2a and 2b can be implemented using hardware alone, or using a combination of hardware and software/firmware. As a specific example, at least some of the components in fig. 2a and 2b may be implemented in software, while other components may be implemented by configurable hardware or a mixture of software and configurable hardware. For example, the FFT block 270 and IFFT block 215 may be implemented as configurable software algorithms, wherein the value of the point number N may be modified depending on the implementation.

Further, although described as using an FFT and an IFFT, this is illustrative only and should not be construed as limiting the scope of the present disclosure. Other types of transforms can be used, such as Discrete Fourier Transform (DFT) and Inverse Discrete Fourier Transform (IDFT) functions. It should be appreciated that for DFT and IDFT functions, the value of the variable N may be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of the variable N may be any integer that is a power of 2 (such as 1, 2, 4, 8, 16, etc.).

Although fig. 2a and 2b show examples of wireless transmission and reception paths, various changes may be made to fig. 2a and 2 b. For example, the various components in fig. 2a and 2b can be combined, further subdivided, or omitted, and additional components can be added according to particular needs. Also, fig. 2a and 2b are intended to illustrate examples of the types of transmit and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communications in a wireless network.

Fig. 3a shows an example UE 116 according to this disclosure. The embodiment of UE 116 shown in fig. 3a is for illustration only, and UEs 111-115 of fig. 1 can have the same or similar configuration. However, the UE has a variety of configurations, and fig. 3a does not limit the scope of the present disclosure to any particular embodiment of the UE.

UE 116 includes an antenna 305, a Radio Frequency (RF) transceiver 310, transmit (TX) processing circuitry 315, a microphone 320, and Receive (RX) processing circuitry 325.UE 116 also includes speaker 330, processor/controller 340, input/output (I/O) interface 345, input device(s) 350, display 355, and memory 360. Memory 360 includes an Operating System (OS) 361 and one or more applications 362.

RF transceiver 310 receives an incoming RF signal from antenna 305 that is transmitted by the gNB of wireless network 100. The RF transceiver 310 down-converts the incoming RF signal to generate an Intermediate Frequency (IF) or baseband signal. The IF or baseband signal is sent to RX processing circuit 325, where RX processing circuit 325 generates a processed baseband signal by filtering, decoding, and/or digitizing the baseband or IF signal. The RX processing circuit 325 sends the processed baseband signals to a speaker 330 (such as for voice data) or to a processor/controller 340 (such as for web-browsing data) for further processing.

TX processing circuitry 315 receives analog or digital voice data from microphone 320 or other outgoing baseband data (such as network data, email, or interactive video game data) from processor/controller 340. TX processing circuitry 315 encodes, multiplexes, and/or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceiver 310 receives outgoing processed baseband or IF signals from TX processing circuitry 315 and up-converts the baseband or IF signals to RF signals for transmission via antenna 305.

Processor/controller 340 can include one or more processors or other processing devices and execute OS 361 stored in memory 360 to control the overall operation of UE 116. For example, processor/controller 340 may be capable of controlling the reception of forward channel signals and the transmission of reverse channel signals by RF transceiver 310, RX processing circuit 325, and TX processing circuit 315 in accordance with well-known principles. In some embodiments, processor/controller 340 includes at least one microprocessor or microcontroller.

Processor/controller 340 is also capable of executing other processes and programs resident in memory 360, such as operations for channel quality measurement and reporting for systems having 2D antenna arrays as described in embodiments of the present disclosure. Processor/controller 340 is capable of moving data into and out of memory 360 as needed to perform the process. In some embodiments, the processor/controller 340 is configured to execute the application 362 based on the OS 361 or in response to a signal received from the gNB or operator. The processor/controller 340 is also coupled to an I/O interface 345, where the I/O interface 345 provides the UE 116 with the ability to connect to other devices, such as laptop computers and handheld computers. I/O interface 345 is the communication path between these accessories and processor/controller 340.

The processor/controller 340 is also coupled to an input device(s) 350 and a display 355. An operator of UE 116 can input data into UE 116 using input device(s) 350. Display 355 may be a liquid crystal display or other display capable of presenting text and/or at least limited graphics (such as from a website). Memory 360 is coupled to processor/controller 340. A portion of memory 360 can include Random Access Memory (RAM) and another portion of memory 360 can include flash memory or other Read Only Memory (ROM).

Although fig. 3a shows one example of UE 116, various changes can be made to fig. 3 a. For example, the various components in FIG. 3a can be combined, further subdivided, or omitted, and additional components can be added according to particular needs. As a particular example, the processor/controller 340 can be divided into multiple processors, such as one or more Central Processing Units (CPUs) and one or more Graphics Processing Units (GPUs). Moreover, although fig. 3a shows the UE 116 configured as a mobile phone or smart phone, the UE can be configured to operate as other types of mobile or stationary devices.

Fig. 3b shows an example gNB 102 in accordance with the present disclosure. The embodiment of the gNB 102 shown in fig. 3b is for illustration only, and other gnbs of fig. 1 can have the same or similar configuration. However, the gNB has a variety of configurations, and fig. 3b does not limit the scope of the disclosure to any particular embodiment of the gNB. Note that gNB 101 and gNB 103 can include the same or similar structures as gNB 102.

As shown in fig. 3b, the gNB 102 includes a plurality of antennas 370a-370n, a plurality of RF transceivers 372a-372n, transmit (TX) processing circuitry 374, and Receive (RX) processing circuitry 376. In certain embodiments, one or more of the plurality of antennas 370a-370n comprises a 2D antenna array. The gNB 102 also includes a controller/processor 378, a memory 380, and a backhaul or network interface 382.

The RF transceivers 372a-372n receive incoming RF signals, such as signals transmitted by UEs or other gnbs, from antennas 370a-370 n. The RF transceivers 372a-372n down-convert the incoming RF signals to generate IF or baseband signals. The IF or baseband signal is sent to RX processing circuit 376, where RX processing circuit 376 generates a processed baseband signal by filtering, decoding, and/or digitizing the baseband or IF signal. The RX processing circuit 376 sends the processed baseband signals to a controller/processor 378 for further processing.

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

The controller/processor 378 can include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, controller/processor 378 may be capable of controlling the reception of forward channel signals and the transmission of backward channel signals via RF transceivers 372a-372n, RX processing circuit 376, and TX processing circuit 374 in accordance with well-known principles. The controller/processor 378 is also capable of supporting additional functions, such as higher-level wireless communication functions. For example, the controller/processor 378 can perform a Blind Interference Sensing (BIS) process such as that performed by a BIS algorithm and decode the received signal from which the interference signal is subtracted. Controller/processor 378 may support any of a variety of other functions in gNB 102. In some embodiments, controller/processor 378 includes at least one microprocessor or microcontroller.

Controller/processor 378 is also capable of executing programs and other processes residing in memory 380, such as a basic OS. Controller/processor 378 is also capable of supporting channel quality measurements and reporting for systems having 2D antenna arrays as described in embodiments of the present disclosure. In some embodiments, the controller/processor 378 supports communication between entities such as web RTCs. Controller/processor 378 is capable of moving data into and out of memory 380 as needed to perform the process.

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 through a backhaul connection or through a network. The backhaul or network interface 382 can support communication through any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as one supporting 5G or new radio access technologies or NR, LTE, or LTE-a), the backhaul or network interface 382 can allow the gNB 102 to communicate with other gnbs over wired or wireless backhaul connections. When the gNB 102 is implemented as an access point, the backhaul or network interface 382 can allow the gNB 102 to communicate with a larger network (such as the internet) through a wired or wireless local area network or through a wired or wireless connection. The backhaul or network interface 382 includes any suitable structure, such as an ethernet or RF transceiver, that supports communication over a wired or wireless connection.

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

As described in more detail below, the transmit and receive paths of the gNB102 (implemented using the RF transceivers 372a-372n, TX processing circuitry 374, and/or RX processing circuitry 376) support aggregated communications with FDD and TDD cells.

Although fig. 3b shows one example of the gNB102, various changes may be made to fig. 3 b. For example, the gNB102 can include any number of each of the components shown in FIG. 3 a. As a particular example, the access point can include a number of backhaul or network interfaces 382, and the controller/processor 378 can support routing functions to route data between different network addresses. As another particular example, while shown as including a single instance of TX processing circuitry 374 and a single instance of RX processing circuitry 376, the gNB102 can include multiple instances of each (such as one for each RF transceiver).

The time domain unit (also referred to as a time unit) in the present application may be one OFDM symbol, one OFDM symbol group (composed of a plurality of OFDM symbols), one slot group (composed of a plurality of slots), one subframe group (composed of a plurality of subframes), one system frame group (composed of a plurality of system frames); or absolute time units such as 1 millisecond, 1 second, etc.; the time unit may also be a combination of granularity, e.g., N1 slots plus N2 OFDM symbols.

The frequency domain unit (also referred to as frequency unit) in the present application may be: one subcarrier, one subcarrier group (composed of a plurality of subcarriers), one Resource Block (RB), which may also be referred to as a physical resource block (physical resource block, PRB), one resource block group (composed of a plurality of RBs), one band part (BWP), one band part group (composed of a plurality of BWP), one band/carrier, one band group/carrier group; or absolute frequency domain units such as 1 hz, 1 khz, etc.; the frequency domain unit may also be a combination of granularity, e.g. M1 PRBs plus M2 subcarriers.

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

The text and drawings are provided as examples only to assist the reader in understanding the present disclosure. They are not intended, nor should they be construed, to limit the scope of the present disclosure in any way. While certain embodiments and examples have been provided, it will be apparent to those of ordinary skill in the art from this disclosure that variations can be made to the embodiments and examples shown without departing from the scope of the disclosure.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.

It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, a "terminal" or "terminal device" includes both a device of a wireless signal receiver having no transmitting capability and a device of receiving and transmitting hardware having receiving and transmitting hardware capable of bi-directional communication over a bi-directional communication link, as will be appreciated by those skilled in the art. Such a device may include: a cellular or other communication device having a single-line display or a multi-line display or a cellular or other communication device without a multi-line display; a PCS (Personal Communications Service, personal communication system) that may combine voice, data processing, facsimile and/or data communication capabilities; a PDA (Personal Digital Assistant ) that can include a radio frequency receiver, pager, internet/intranet access, web browser, notepad, calendar and/or GPS (Global Positioning System ) receiver; a conventional laptop and/or palmtop computer or other appliance that has and/or includes a radio frequency receiver. As used herein, "terminal," "terminal device" may be portable, transportable, installed in a vehicle (aeronautical, maritime, and/or land-based), or adapted and/or configured to operate locally and/or in a distributed fashion, to operate at any other location(s) on earth and/or in space. The "terminal" and "terminal device" used herein may also be a communication terminal, a network access terminal, and a music/video playing terminal, for example, may be a PDA, a MID (Mobile Internet Device ), and/or a mobile phone with a music/video playing function, and may also be a smart tv, a set top box, and other devices.

The term "send" in the present invention may be used interchangeably with "transmit", "report", "notify", etc., without departing from the scope of the present invention.

The transmission link of the wireless communication system mainly includes: downlink communication link from 5G nb to User Equipment (UE), uplink communication link from UE to network.

A node for positioning measurements in a wireless communication system, such as the current wireless communication system, comprises: the UE initiating the positioning request message is used for a positioning management entity (Location Management Function, LMF) for UE positioning and positioning assistance data delivery, broadcasting the positioning assistance data and a gNB or a Transmission-Reception Point (TRP) for uplink positioning measurement, and is used for downlink positioning measurement. Furthermore, the method of the present invention can be extended to other communication systems, such as automotive communication (V2X), i.e. bypass link communication (sidelink communication), where the transmitting receiving point or UE can be any device of V2X.

With the rapid development of the information industry, especially the growing demand from the mobile internet and internet of things (IoT, internet of things), the future mobile communication technology is challenged unprecedented. As massive IoT devices gradually penetrate into mobile communication networks, the number of connected devices will be even more dramatic. To address this unprecedented challenge, the communications industry and academia have developed extensive fifth generation mobile communication technology (5G) research to face the 2020 s. The framework and overall goals of future 5G have been discussed in the ITU report ITU-RM [ imt.vision ], where the requirements expectations, application scenarios and important performance metrics of 5G are specified. For new demands in 5G, ITU report ITU-R M [ imt.future TECHNOLOGY TRENDS ] provides information about technical trends for 5G, aiming at solving significant problems of significant improvement of system throughput, user experience consistency, scalability to support IoT, latency, energy efficiency, cost, network flexibility, support of emerging services, flexible spectrum utilization, etc. In 3GPP (3 rd Generation Partnership Project, third generation partnership project), work on the first phase of 5G is already underway. To support more flexible scheduling, 3GPP decides to support variable hybrid automatic repeat request-Acknowledgement (HARQ-ACK) feedback delay in 5G. In existing long term evolution (Long Term Evolution, LTE) systems, the time of uplink transmission from the reception of HARQ-ACK of downlink data is fixed, for example, in frequency division duplex (Frequency Division Duplex, FDD) systems, the delay is 4 subframes, and in time division duplex (Time Division Duplex, TDD) systems, one HARQ-ACK feedback delay is determined for the corresponding downlink subframe according to the uplink and downlink configuration. In a 5G system, whether FDD or TDD, the uplink time unit in which HARQ-ACKs can be fed back is variable for one determined downlink time unit (e.g., downlink time slot or downlink mini-slot). For example, the time delay of the HARQ-ACK feedback may be dynamically indicated by the physical layer signaling, or different HARQ-ACK time delays may be determined according to different services or factors such as user capability.

The 3GPP defines three major directions for 5G application scenarios-eMBB (enhanced mobile broadband ), mMTC (massive machine-type communication), URLLC (ultra-reliable and low-latency communication), ultra-reliable and low-latency communications. The eMBB scene aims at further improving the data transmission rate on the basis of the existing mobile broadband service scene so as to improve the user experience, thereby seeking the extreme communication experience among people. mctc and URLLC are application scenarios such as internet of things, but each emphasis is different: mctc is mainly information interaction between people and objects, and URLLC mainly reflects the communication requirement between objects.

In 5G NR, since a larger bandwidth and a higher frequency band are introduced, the energy consumption of a base station is several times that of an LTE base station, and thus, how to reduce the energy consumption of the base station is a problem to be solved. In practical deployment, the high power consumption of NR base stations greatly increases the operation cost of operators, and thus it is important to improve the power efficiency of base stations so that the base stations can reduce energy consumption. However, it is a problem to be solved how to reduce the influence of the base station energy consumption on the network performance while reducing the base station energy consumption, for example, in the case of reducing the base station energy consumption by reducing the number of antenna elements of the transmitting antenna array or directly reducing the number of transmitted beams.

In order to solve at least the above problems, the present invention provides a method for transmitting and receiving beam information, and a device thereof, the method comprising: the UE obtains the information related to the adjustment of the signal beam by the base station, and after obtaining the information related to the adjustment of the signal beam by the base station, the UE adopts corresponding operation, so that the UE can better adapt to the adjustment of the signal beam by the base station, and the influence of the adjustment of the signal beam by the base station on the system performance is reduced.

The base station may directly transmit information related to signal beam adjustment to the UE or may implicitly indicate information related to signal beam adjustment to the UE. For example, the base station may instruct the UE to operate in a particular mode in which the base station may adjust the beam of the signal (e.g., change the beam, turn off part or all of the beam, etc.) by changing the sequence used to transmit the signal, or time and/or frequency domain resources used to transmit the signal, or transmit the signal in a different manner, etc. Alternatively, the base station transmits the beam adjustment related information to the UE in case that the specific condition is satisfied, or the base station transmits the beam adjustment related information only to the UE that satisfies the specific condition.

In the description herein, the signal beams involved may be SSB, CSI-RS, and/or PRS, etc. signals or signal-related beams, and for convenience of description, "beam", "beam signal beam", etc. are used, but it is understood that these descriptions may be replaced with SSB, CSI-RS, and/or PRS, etc. signals, which beams may be adjusted or changed when the base station operates in a specific mode to meet specific requirements of the base station, such as power control, power saving, etc. Thus, it will be appreciated that in this disclosure, adjustments to beams may involve not only adjustments to actual physical beams (e.g., transmit angles of beams, beam widths, etc.), but in some cases adjustments to signals (e.g., signals of SSB, CSI-RS, and/or PRS, etc.), and furthermore, while described in some descriptions using SSB as an example, it will be appreciated that this is merely an example, and that these descriptions are equally applicable to other signal beams, such as those related to signals of CSI-RS, and/or PRS, etc.

It should be appreciated that the methods described herein may be applied to a variety of scenarios in which a base station adjusts a beam, including, but not limited to, a base station operating in a power save mode, a base station operating in a readcap mode, a base station operating in an SDT (small data transfer) mode, and so forth. In the following description, for simplicity of description, the method of the present application will be described by taking an example in which a base station operates in a power saving mode. It will be appreciated that the following description applies equally to scenarios in which the base station operates in other modes involving beam adjustment or power reduction.

In one embodiment of the present invention, the method proposed by the present invention will be described for performing the transmission and reception operations related to the base station energy saving indication in the initial access related procedure. The base station may enter the base station apparatus into an energy saving mode for various reasons, such as power control, energy saving requirements, etc., in which the base station apparatus may adjust the antenna array, resulting in a change in the transmitted beam, referred to herein as an adjusted beam; for example, when the antenna elements in the antenna array are partially turned off, the transmission beam of the base station apparatus may be widened, the coverage angle becomes large but the antenna gain becomes small; in particular, if the antenna array is entirely turned off (e.g., all antenna elements are turned off), the transmit beam of the base station device is completely turned off. In some cases, the base station apparatus may employ the above-described adjustments for one or some or all of the beams. Further, while the base station apparatus is operating in the power save mode, the adjustment of the beam may be relatively dynamic, so the UE needs to learn information about the adjustment of the signal beam (e.g., the beam of synchronization signal blocks (Synchronization Signal Block, SSB), channel state information reference signals (channle state information reference signal, CSI-RS), and/or positioning reference signals (positioning reference signal, PRS) signals) so that there are some countermeasures to the adjusted beam.

In the initial access related procedure, the UE may perform measurement of downlink signals (e.g., SSB/CSI-RS/PRS signals) and may also perform a random access procedure. Therefore, the adjustment of the beam at the base station side may affect various operations in the initial access related procedure, for example, resulting in a decrease in the reception performance of the downlink signal. In addition, the change of the base station side to the beam may also cause the channel transmission between the base station and the UE to change, so that the channel loss information obtained by previous measurement is inaccurate, thereby causing inaccuracy of the uplink signal transmission power.

By the method for transmitting and/or receiving the beam information provided by the invention, the base station equipment and the UE equipment can communicate information related to signal beam adjustment (or information related to signal beam related to the first mode of the base station), and the UE can perform some corresponding operations on the beam adjustment. In the present invention, the signal beams may include beams of SSB, CSI-RS and/or PRS signals, and thus, the expressions relating to "signal beams" or "beam signals" may be replaced with SSB, CSI-RS and/or PRS, e.g. "adjusted beam pattern" or "adjusted signal beam pattern" or "adjusted beam signal pattern" may be replaced with "adjusted SSB pattern", for example. It should also be appreciated that although the present invention has been described with respect to network power saving as an example, the method of the present invention is applicable not only to the case of network power saving mode, but also to any other case that causes a base station to adjust a beam or antenna, such as redcap, SDT (small data transfer), etc.

According to the embodiments of the present disclosure, the UE may obtain information related to signal beam adjustment of the base station apparatus in a certain manner, or the base station may indicate the information related to signal beam adjustment to the UE in a certain manner;

wherein the information related to signal beam adjustment comprises a combination of one or more of:

● The pattern of the beam after adjustment, namely the UE can obtain the beam index information sent in a period through the pattern information; in particular, the pattern may also include

The number of time units of the period of the signal beam after adjustment, and/or

The number of occupied time units of the signal beam in one period after the adjustment; and/or

The number of beams and/or position index information in one period after the adjustment; and/or

● The change information may indicate information of the beam that is changed (e.g., adjusted) with respect to the existing beam pattern, as compared to the change information of the previous beam configuration; the change information may be, for example, a mute pattern (mute pattern) or a mask pattern (mask pattern or mask index, or mask). Taking the mute pattern as an example, for example, when the original base station apparatus transmits 8 SSBs, if the mute pattern indicated by the change information is 11001100, a "1" indicates that the SSBs at the corresponding positions are not muted, such as SSBs 0,1,4, and 5 in fig. 4; while "0" represents that SSB of the corresponding location is muted, such as SSB2,3,6,7 in fig. 4, that is, the muting pattern may indicate to the UE that SSB2,3,6,7 is turned off.

● A first pattern of an antenna array, for example, an array of 16×16=256 antenna elements is used by the base station device, the base station device identifies the turned-off antenna element of 16×16 as 0, the non-turned-off antenna element as 1, and notifies the UE of a 16×16 matrix information; the UE obtains the information and obtains the change condition of the antenna unit of the base station, and knows the possible beam direction and/or range; and/or;

● Antenna transmission system codebook information (such as codebook index) of MIMO transmission; and/or;

● Transmitting angle (boresight direction) information and/or beam width (beam width) information for a beam; and/or;

● A flag, e.g., a 1-bit flag, that adjusts and/or initiates the power saving mode, indicating whether the power saving mode is initiated or whether the beam configuration is changed; if the '1' indicates that the energy-saving mode is started or the beam configuration is adjusted, the UE uses the pre-configured or obtained beam configuration used in the energy-saving mode or uses the adjusted beam configuration; for example, the preconfigured or obtained beam configuration or the information related to the adjusted beam configuration may be sent to the UE by the base station in advance.

Wherein the certain manner comprises one or more of the following combinations:

● By adjusting or configuring or reconfiguring beam signals (e.g., SSB, CSI-RS, PRS, etc.), taking SSB as an example, wherein the adjusting comprises a combination of one or more of:

using different sequences, e.g. sequences specific to the first mode (e.g. network power saving mode), e.g. different or even orthogonal sequences to the previous primary synchronization signal (Primary Schronization Signal, PSS) and/or secondary synchronization signal (Secondary Schronization Signal, SSS); in one embodiment, in a first mode, the base station transmits SSBs using a first sequence that is different from a second sequence used by the base station to transmit SSBs in a non-first mode (or a second mode, or when the first mode is not active); thus, by receiving the SSB of the first sequence, the UE can learn that the base station uses the first mode, and optionally, the UE can also learn which beams the base station uses or shuts down or what adjustments or changes the base station makes to the beams;

using a DMRS sequence in a different master information block (Master Information Block, MIB), e.g., using a DMRS sequence in the MIB that is specific to the first pattern, e.g., using a different or orthogonal sequence than the previous DMRS sequence; in one embodiment, in a first mode, a base station transmits SSBs using a first DMRS sequence that is different from a second DMRS sequence used by the base station to transmit SSBs in a non-first mode; thus, by receiving the first DMRS sequence, the UE can learn that the base station uses the first mode, and optionally, the UE can also learn which beams the base station uses or shuts down or what adjustments or changes the base station makes to the beams;

In the content of the MIB, specifically, only the bits in the MIB that do not need to be encoded carry information related to SSB beam adjustment; thus, the MIB merging operation of the UE is not affected;

using different SSB time-domain and/or frequency-domain resource locations, e.g., using SSB time-domain and/or frequency-domain resource locations specific to the first mode; in one embodiment, in a first mode, a base station transmits SSBs using first time and/or frequency domain resource locations that are different from second time and/or frequency domain resource locations that the base station uses to transmit SSBs in a non-first mode; thus, based on detecting SSBs at different time and/or frequency domain resource locations, the UE can also obtain information related to beam adjustment of the base station;

● Through a specific common search space (common search space, CSS) and/or a specific set of control resources (control resource set, CORESET), in particular, one or more of the following may be included:

by a CSS/CORESET specifically applied to the first mode (e.g. network power saving mode), e.g. type 0A CSS, specifically, for searching for PDCCH in this CSS and/or CORESET, the UE may use a specifically configured RNTI, e.g. NWES-RNTI; the first mode is related to adjustment of the signal beam by the base station, and can be a power saving mode, a redcap (weakening capability), an SDT (small data transmission) mode and the like;

Through a DCI format specifically applied to a first mode (e.g., a network power saving mode), such as a new DCI format (e.g., DCI 2-N, etc.), where the DCI carries information related to signal beam adjustment;

carrying the information related to beam adjustment by using a remaining bit field (spark bit or reserved bit) in the existing DCI format;

in one embodiment, a DL grant (DL grant) schedule may be carried in DCI, and the UE finds a scheduled PDSCH through the DL grant, so as to obtain the information related to signal beam adjustment in the PDSCH; in one embodiment, the scheduled PDSCH found by the DL grant may be a PDSCH dedicated to the first mode (e.g., network power saving mode); alternatively, the PDSCH may also be a system information block SIB dedicated to a first mode (e.g., network power saving mode);

● By msg2 (including PDCCH and/or PDSCH) and/or msgB (including PDCCH and/or PDSCH) and/or PDCCH and/or msg4 (including PDCCH and/or PDSCH) scheduling msg3 retransmissions in a random access procedure, in particular, one or more of the following may be included:

the residual bit field (spark bit or reserved bit) in the DCI format in the PDCCH of Msg2 or msgB carries the information related to signal beam adjustment; considering that the UE searches PDCCH of msg2 or msgB using RA-RNTI and/or msgB-RNTI, and the value of RA-RNTI and/or msgB-RNTI is related to the time-frequency resource location where the RACH occasion (RACHoccasion, RO) used by the UE performing random access is located (i.e., different ROs correspond to different RA-RNTI and/or msgB-RNTI), and that there may be multiple UEs performing random access attempts using the same RO, this way may enable all UEs that select the RO to which the beam signal corresponds to perform preamble transmission to obtain an indication in case that one beam signal (e.g., SSB) is adjusted, which may save signaling overhead for transmitting the indication to all the UEs;

The remaining bit field (spare bit or reserved bit) in the PDCCH (DCI therein) format of Msg3 or Msg4 carries the information related to signal beam adjustment;

the MAC subheader in the PDSCH of Msg2 or msgB carries the information related to signal beam adjustment, where the MAC subheader may be a reserved bit in an existing MAC subheader and/or a MAC subheader specifically applied to the first mode (e.g., the network power saving mode); this approach is also advantageous for informing a plurality of UEs of information related to beam adjustment, so that signaling overhead can be saved;

the RAR in the PDSCH of Msg2 or msgB (including the RAR of Msg2 and/or the successful RAR and/or the fallback RAR of msgB) carries the information related to signal beam adjustment, which is suitable for the case of indication for the specific affected UE;

in one embodiment, the UE may obtain the information related to signal beam adjustment of the base station device only by the certain manner when the first condition is met, that is, the base station may instruct the UE to obtain the information related to signal beam adjustment by the certain manner when the first condition is met, or the UE meeting the first condition may obtain the information related to signal beam adjustment of the base station device only by the certain manner, or the base station may instruct only the UE meeting the first condition to obtain the information related to signal beam adjustment by the certain manner, where the first condition may be one or a combination of more of the following:

● When the UE derived aggregate ranking (Aggregation level) of the search space meets a certain condition (e.g., is a minimum aggregate ranking, e.g., AL0, and/or is less than (not greater than) a certain ranking value, e.g., is less than (not greater than) an aggregate ranking of 8); such conditions apply even if the corresponding beam is adjusted (e.g., attenuated), but if the aggregation level is sufficiently large to still meet the coverage of the UE, the UE need not be aware of or take corresponding action on the beam adjustment;

● When a serving base station (serving gNB) of the UE enters a first mode (e.g., a power saving mode); the method specifically comprises the steps that UE receives an indication of starting a first mode of a base station;

● When the beam selected by the UE is adjusted; the selected beam includes a preferred beam previously reported by the UE to the base station;

in one embodiment, after obtaining the information related to signal beam adjustment, the UE performs a first operation, which may be a combination of one or more of the following:

● Measuring the adjusted signal beam and reporting the measurement result and/or the preferred beam index; for example, sending CSI reports to a base station;

in one embodiment, the UE reports the preferred beam index through PRACH, or msg3 PUSCH, msgA PUSCH;

In one embodiment, if the UE is in a connected state, the preferred beam index may be reported through PUSCH or PUCCH;

● Based on whether the adjusted signal beam is turned off, determining whether resources corresponding to the beam index of the signal beam are valid or available

In one embodiment, if the adjusted beam is turned off, the UE considers that RACH resources (ROs and/or preambles) corresponding to the beam index are not available or invalid;

in one embodiment, if the adjusted beam is changed (e.g., the antenna elements are reduced to cause beam widening, or the direction is changed, etc.), the UE considers that RACH resources (ROs and/or preambles) corresponding to the beam index are still available or valid;

● The UE receives first delay configuration information sent by the base station for the scheduled uplink signal, wherein the first delay configuration information relates to adjustment of the beam by the base station

The method comprises the steps that the UE receives first delay configuration information of uplink transmission scheduled by a RAR (radio resource indicator) UL grant carried by a base station through the RAR or the RAR UL grant of msg 2; and/or

The method comprises the steps that the UE receives first delay configuration information for uplink transmission of msg3 retransmission, which is scheduled by a base station through DCI UL grant carried by PDCCH corresponding to msg 3; and/or

The method comprises the steps that the UE receives first delay configuration information of uplink transmission of a PUCCH corresponding to a PDSCH, which is carried by a base station through an msg4 PDCCH and/or the PDSCH; and/or

The first delay configuration information includes N time units (N is a positive integer), that is, the UE may determine the uplink transmission time according to the time interval information and/or the first delay configuration information in the time domain resource configuration. Alternatively, the N time units may be preconfigured or dynamically configured such as RRC/DCI. For example, as illustrated in fig. 5, the DCI schedules a PUSCH transmission, because the UE receives the first delay configuration information, and delays the number of time units obtained by additionally using the first delay configuration information in a time domain interval originally configured in the TDRA to obtain an actual resource location of the PUSCH; in addition, for example, as shown in fig. 6, when DCI schedules one PDSCH, the UE needs to feed back PUCCH (carrying ACK/NACK information) after receiving the PDSCH, and the resource location of PUCCH is outside the time interval of the original resource allocation, and the number of time units obtained by additionally using the first delay allocation information is delayed to obtain the actual resource location of PUCCH.

The UE may obtain a back-off indication (backoff indication) through the random access message 2 or the message B, where the back-off indication may indicate that the UE needs to retransmit the message 1 or the message a after at least M (M is a positive integer) time units; in one embodiment, the backoff indicator comprises a random backoff indicator and/or a backoff indicator that is pre-configured and/or fixed and/or that meets a certain number of time units. In this way, the UE may perform uplink transmission according to the backoff indication and applying the first delay configuration information received from the base station, which is advantageous in that the UE has sufficient time to reacquire the preferred beam index;

● The UE obtains the sending beam index indication of the PUCCH indicated by the base station from the PDCCH and/or PDSCH in the obtained message 4, wherein the sending beam index indication comprises a sending beam index corresponding to the corresponding downlink beam index; this applies to the case where the beam is adjusted before the PUCCH is transmitted;

● The UE lengthens and/or stops (resets) and/or pauses and/or restarts the contention resolution timer in the random access procedure; for example, when beam adjustment occurs during the transmission of message three, additional time needs to be introduced to allow the UE to re-measure and/or obtain the preferred beam index information;

in one embodiment, the UE performs the first operation after obtaining the information related to signal beam adjustment, and further includes performing the first operation after receiving a period of the information related to signal beam adjustment; the period of time includes K (K is a positive integer) time units, which may be preconfigured (e.g., higher layer RRC signaling) and/or fixedly configured and/or dynamically configured (e.g., DCI and/or MAC CE signaling).

In another embodiment of the invention, in supporting the transmission of upstream data signals, for example in the context of packet data transmission (small data transmission, SDT); the UE may be allowed to transmit data signals without the full access system being in a connected state. In this embodiment, the proposed resource confirmation method and transmission method for uplink data signals enable the UE to obtain, by using the method provided by the invention, a mapping relationship between pre-configured uplink transmission resources and downlink beams, and determine, when uplink data signal transmission is required, to transmit uplink data signals on corresponding uplink transmission resources according to the selected downlink beams. The method provided by the invention can be used for not only the scene of SDT, but also the uplink data signal transmission of other scenes; hereinafter, an exemplary description of a method is made taking an uplink data signaling of SDT as an example, and SDT is classified into a configured grant (CG-SDT) based SDT and a random access based SDT (RA-SDT);

In case of performing a configured grant (CG-SDT) based transmission of SDT, the UE may obtain configuration information of one or more CG-PUSCHs for CG-SDT transmission from the base station device, wherein the configuration information of the CG-PUSCH comprises a combination of one or more of:

● The transmission resource size (e.g., number of occupied time units and/or number of frequency domain units) and location (e.g., starting time unit location in a slot) of one PUSCH:

● The DMRS resource configuration of one PUSCH includes a sequence index of DMRS and/or a DMRS port (port) index;

● A CG-PUSCH cycle size;

● The number of PUSCH transmission resources in one CG-PUSCH period (including the number in the time domain, and/or the number in the frequency domain), optionally, the number of PUSCH transmission resources in one period may be determined by a configured number of repetitions, where the number of repetitions may be the number of repetitions in repetition type A (repetition type A) and or the nominal number of repetitions in repetition type B (nominial repetition) and or the actual number of repetitions (actual repetition); the number of repetition is actually configured as the number of transmission resources; this may increase the available PUSCH resources.

● The downlink signal set to which the CG-PUSCH resource is associated, i.e., one or a group of downlink signals (e.g., SSB, and/or CSI-RS, in the present invention, SSB is used as an example for illustration, but may be replaced by CSI-RS);

specifically, when the UE does not obtain an indication of the one or set of SSBs (i.e., the indication is missing), the UE may:

■ Taking an SSB index configured in a system broadcast message (e.g., SSB-locationinburst) of the base station device as an associated SSB or set of SSBs; specifically, the system broadcast message of the base station device may be a system broadcast message read by the UE before entering RRC inactivity (rrc_inactive), or a latest system broadcast message read by the UE (before SDT is performed); and/or

■ The method for sequentially mapping SSB indexes in the system broadcast message to the configured CG-PUSCH according to a continuous sequence (sequential order) comprises the following steps:

● Sequentially mapping the SSB indexes to one or more PUSCH resources in one CG-PUSCH, for example, SSB0,1,2,3 in total; when 4 PUSCH transmission resources are included in one CG-PUSCH configuration, SSB0 is mapped to PUSCH transmission resource 0, SSB1 is mapped to PUSCH transmission resource 1, SSB2 is mapped to PUSCH transmission resource 2, SSB3 is mapped to PUSCH transmission resource 3, and the index sequence of the PUSCH resources is special according to the frequency domain priority in one CG-PUSCH period and the time domain; or time domain priority, and frequency domain; the number of PUSCH transmission resources may be replaced by the number of PUSCH DMRS resources and/or the number of PUSCH transmission units (including one PUSCH transmission resource and one DMRS); or (b)

● Sequentially mapping the SSB indexes onto a plurality of CG-PUSCH configurations, e.g., using SSBs 0,1,2,3 in total; in total, 4 CG-PUSCH configurations, SSB0 maps to the first CG-PUSCH configuration, SSB1 maps to the second CG-PUSCH configuration, SSB2 maps to the third CG-PUSCH configuration, and SSB3 maps to the fourth CG-PUSCH configuration;

preferably, in the associated SSB indication, 4 SSBs may be configured accurately with PUSCH transmission resources to which the associated SSB is mapped, e.g. 4 PUSCH transmission resources (PUSCH 0,1,2, 3) included in one CG-PUSCH configuration, e.g. SSB0 is indicated in PUSCH0, SSB1 is indicated in PUSCH 1, SSB2 is indicated in SSB2, and SSB3 is indicated in PUSCH 3, where the indicated SSBs may be the same or different, which may be very flexible to configure the SSB mapped by one PUSCH; or the SSB indexes which are determined to be associated are mapped sequentially, so that the signaling overhead can be saved;

● The mapping ratio (mapping ratio) of the associated SSB to the PUSCH in the corresponding CG-PUSCH indicates, i.e., gets information on one PUSCH resource onto which one or more SSBs can be mapped,

when the UE obtains the mapping ratio indication, performing SSB-PUSCH mapping according to the indicated mapping ratio;

When the UE does not obtain the mapping ratio indication, the UE may:

■ The UE does not perform SSB-PUSCH mapping operation, namely, as long as the SSB selected in SDT is in the associated SSB, the UE can use the corresponding CG-PUSCH resource to transmit; if a plurality of selectable PUSCH transmission resources and/or DMRS resources exist, the probability of the UE is randomly selected to transmit; and/or

■ Determining a mapping ratio value by a ratio of the number of PUSCH transmission resources in one CG-PUSCH period to the number of SSBs associated therewith (the obtained ratio may be rounded or a closest preset ratio not less than or not greater than the obtained ratio may be found as the mapping ratio value); specifically, the number of PUSCH transmission resources may be replaced by the number of PUSCH DMRS resources and/or the number of PUSCH transmission units (including one PUSCH transmission resource and one DMRS), that is, different transmission resources or different DMRS are different PUSCH transmission units;

in the SSB-to-PUSCH mapping process, for one or more SDT CG-PUSCH configuration (which may also be described simply as one or more PUSCH configuration, and the meaning of the previous CG-PUSCH configuration), starting with frame 0, a mapping period for mapping SSB indexes to valid PUSCH opportunities (PUSCH occasins) and/or DMRS resources associated with PUSCH opportunities is the minimum of a candidate set of values for one or more SSB-PUSCH mapping periods that satisfies a certain condition. In addition, a mapping pattern period of the SSB-PUSCH comprises one or more mapping periods, and in the mapping pattern period, the mapping pattern of the SSB index and the PUSCH resource is at most T _max The time repeats. Wherein, in particular,

● The certain condition at least comprises: can at least N on the active PUSCH occision in it (i.e. the mapping period) _TX ^SSB The SSB is mapped once; wherein N is _TX ^SSB One or more set of SSBs (e.g., SSB-locationinburst) obtained from system information block 1 (SIB 1) or from serving cell common configuration message ServingCellConfigCommon; or from one or more of the corresponding set of SSBs in one or more SDT CG-PUSCH configuration; in particular, as already described, when one or more SSBs are not configured in one or more SDT CG-PUSCH configuration, one or more of serving cell common configuration message ServingCellConfigCommon from system information block 1 (SIB 1) or from serving cell common configuration message is reusedGroup SSB (e.g., SSB-locationinburst); and/or

● The SSB-PUSCH mapping period may be N times SDT CG PUSCH configuration period (i.e., the period size of the aforementioned one CG-PUSCH), N being an integer greater than or equal to 1; and/or

● The candidate value set of the SSB-PUSCH mapping period includes: for a SDT CG PUSCH configuration period value P _cg-sdt (either in absolute time such as milliseconds, seconds, etc., or in other time units such as OFDM symbols, slots, etc.), its corresponding set of candidates {1, …, [ P ] for SSB-PUSCH mapping periods _cg-sdt-large /P _cg-sdt ],…,T _max *N _symbperslot *2 ^μ /P _cg-sdt Particularly }, particularly

O wherein P _cg-sdt Is obtained by the UE from SDT CG PUSCH period configuration information (such as 'periodicity' and/or 'periodicity';

o wherein P _cg-sdt-large Is CG PUSCH period configured with more (or not less) than P in the optional value set _cg-sdt Is a periodic value or values of (a);

o wherein said T _max Is the maximum value of a configured or default SSB-PUSCH mapping period or the maximum value of an SSB-PUSCH mapping pattern period, e.g. 160ms or 640ms by default;

o wherein said N _symbperslot Is the number of symbols in a time slot, such as N in normal CP (cyclic prefix) _symbperslot When=14, as in the case of extended CP, N _symbperslot ＝12；

Wherein 2 ^μ Representing subcarrier spacing indications when μ= 0,1,2,3,5,6 represents 15khz,30khz,60khz,120khz,480khz,960khz, respectively;

wherein [ X ] is a rounding operation on X, preferably, it may be an upper rounding or a lower rounding;

● Optionally, when the UE receives the configured repetition parameters (including the repetition type, at least one of the repetition number); taking the repeated PUSCH within a certain time as a PUSCH opportunity; the certain time can be a configuration period of a CG PUSCH or an SSB-PUSCH mapping ring or a mapping period or a mapping pattern period; when any one repetition in the PUSCH opportunity is invalid (i.e., so long as no less than one repetition is invalid), the PUSCH opportunity is judged to be invalid, and equivalently, when all repetitions in the PUSCH opportunity are valid, the PUSCH opportunity is judged to be valid; optionally, when at least one or any one of the PUSCH opportunities is repeated valid, the PUSCH opportunity is judged valid; equivalently, when all the repetition in the PUSCH opportunity is invalid, the PUSCH opportunity is judged to be invalid; optionally, a valid PUSCH opportunity is only used for the SSB-PUSCH mapping operation; optionally, the repetition is valid, which means that the PUSCH time-frequency resource where the repetition is located meets the validity judgment; the repetition is invalid, which means that the PUSCH time-frequency resource where the repetition is located does not meet the validity judgment. Thus, the effective PUSCH opportunity of any SSB mapping can be ensured to contain the same number of repetition times, and fairness is ensured.

Before SDT, the UE may select one SSB by downlink measurement, and the manner of selection may include one (or a combination of) or more of the following:

● Through a DL-RSRP threshold value configured by a base station, if the measured SSB-RSRP is greater than the DL-RSRP threshold value, the UE selects the SSB;

if the SSB exceeds the threshold by more than one, then

■ The UE selects one SSB with the largest RSRP value as the selected SSB; or (b)

■ The UE randomly selects one SSB from the intermediate probabilities as the selected SSB;

● The UE selects one SSB with the largest SSB-RSRP value as the selected SSB;

preferably, when the UE selected SSB (selected SSB) is not in the SSB associated in the CG-PUSCH received by the UE, for example, the base station indicates in the CG-PUSCH configuration that the associated SSB is SSB0,1, but the UE is SSB3 at the selected SSB; the UE may do one or a combination of the following:

● The UE does not perform CG-SDT, (switches to) performs SDT based on random access, namely RA-SDT; preferably, SDT with priority for two-step random access;

● The UE assumes that the operation of selecting SSBs can only be performed from the associated SSBs indicated by the base station in the CG-PUSCH configuration, that is, the above selection method is applied to the set of associated SSBs (i.e., one or more SSBs) indicated by the base station in the CG-PUSCH configuration determined by the UE; specific operations are described in the above method, and are not repeated;

● The UE assumes that the associated SSBs indicated by the base station in the CG-PUSCH configuration include all SSBs that the UE may measure; otherwise the UE considers this to be an erroneous case, whose behaviour is undefined; after the SSB and the PUSCH resources are determined, the UE may perform corresponding uplink data signaling.

Referring to fig. 7, the present embodiment also provides a communication device (base station or user equipment UE) 700 for transmission or reception of beam information. The communication device comprises a memory 701, a processor 702 and a transceiver 703. The processor 702 is coupled with the transceiver 703 and the memory 701. Stored on memory are computer executable instructions that, when executed by the processor 702, cause at least one method corresponding to the above-described embodiments of the present disclosure to be performed. The foregoing description of the exemplary embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any modifications, equivalents, and variations which fall within the spirit and scope of the invention are intended to be included in the scope of the invention.

Those skilled in the art will appreciate that the present invention includes apparatuses related to performing one or more of the operations described herein. These devices may be specially designed and constructed for the required purposes, or may comprise known devices in general purpose computers. These devices have computer programs stored therein that are selectively activated or reconfigured. Such a computer program may be stored in a device (e.g., a computer) readable medium or any type of medium suitable for storing electronic instructions and respectively coupled to a bus, including, but not limited to, any type of disk (including floppy disks, hard disks, optical disks, CD-ROMs, and magneto-optical disks), ROMs (Read-Only memories), RAMs (Random Access Memory, random access memories), EPROMs (Erasable Programmable Read-Only memories), EEPROMs (Electrically Erasable Programmable Read-Only memories), flash memories, magnetic cards, or optical cards. That is, a readable medium includes any medium that stores or transmits information in a form readable by a device (e.g., a computer).

It will be understood by those within the art that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. Those skilled in the art will appreciate that the computer program instructions can be implemented in a processor of a general purpose computer, special purpose computer, or other programmable data processing method, such that the blocks of the block diagrams and/or flowchart illustration are implemented by the processor of the computer or other programmable data processing method.

Those of skill in the art will appreciate that the various operations, methods, steps in the flow, acts, schemes, and alternatives discussed in the present invention may be alternated, altered, combined, or eliminated. Further, other steps, means, or steps in a process having various operations, methods, or procedures discussed herein may be alternated, altered, rearranged, disassembled, combined, or eliminated. Further, steps, measures, schemes in the prior art with various operations, methods, flows disclosed in the present invention may also be alternated, altered, rearranged, decomposed, combined, or deleted.

The foregoing is only a partial embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims

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

receiving, from a base station, information related to a signal beam related to a first mode of the base station; and

and performing an operation related to communication based on the information related to the signal beam related to the first mode of the base station.

2. The method of claim 1, wherein the information related to the signal beam related to the first mode of the base station comprises at least one of:

a pattern of beams associated with the first mode of the base station for indicating transmit beam index information associated with the first mode of the base station;

information of the signal beam indicating a beam associated with the first mode of the base station;

a pattern of antenna arrays for indicating antennas associated with a first mode of the base station;

codebook information transmitted by multiple-input multiple-output (MIMO);

transmitting angle information of the beam;

beam width information;

A beam change flag indicating whether a beam configuration is adjusted to be associated with a first mode of the base station;

information indicating whether the first mode is activated.

3. The method of claim 2, wherein the pattern of beams associated with the first mode of the base station further comprises at least one of:

the number of time units information corresponding to the period of the beam associated with the first mode of the base station,

the number of time units occupied by the beam associated with the first mode of the base station in one period,

beam number information and/or position index information of beams associated with the first mode of the base station in one period.

4. The method of claim 1, wherein the communication-related operation comprises at least one of:

measuring signal beams related to a first mode of the base station and reporting measurement results and/or preferred beam indexes;

determining whether resources corresponding to an index of a signal beam are valid or available based on whether the signal beam associated with a first mode of a base station is turned off;

first delay configuration information for scheduled uplink signaling associated with a first mode is received from a base station,

Acquiring a transmission beam index indication of a PUCCH indicated by a base station through a PDCCH and/or a PDSCH in the acquired message 4, wherein the transmission beam index indication comprises a transmission beam index corresponding to a corresponding downlink beam index;

at least one of the following operations is performed on a contention resolution timer in a random access procedure: extension, stop, reset, pause, restart.

5. The method of claim 4, wherein the measurement result and/or the preferred beam index is reported through PRACH, or msg3 PUSCH, or msgA PUSCH,

wherein determining whether resources corresponding to the beam index are valid or available based on whether a signal beam associated with a first mode of a base station is turned off comprises:

if the beam related to the first mode of the base station is turned off, determining that the Random Access Channel (RACH) resource corresponding to the beam index is unavailable or invalid;

if the beam associated with the first mode of the base station is not turned off, determining that RACH resources corresponding to the beam index are available or valid,

wherein the first delay configuration information comprises a first number of time units and receiving, from the base station, first delay configuration information for scheduled uplink signaling, comprising at least one of:

Receiving first delay configuration information for an uplink transmission scheduled by an RAR UL grant in response to the RAR or the RAR uplink UL grant by a random access response of message msg 2;

receiving first delay configuration information of uplink transmission of msg3 retransmission scheduled by downlink control information DCIUL authorization in a physical downlink control channel PDCCH corresponding to msg 3;

the method includes receiving first delay configuration information for transmission of a PUCCH corresponding to an msg4 PDCCH and/or a physical downlink shared channel PDSCH through the PDCCH.

6. The method of claim 4 or 5, wherein the communication-related operation is performed a second number of time units after receiving the signal beam adjustment-related information.

7. The method of claim 1, wherein the signal beam related information related to the first mode of the base station is received by at least one of:

an implicit indication of said information related to signal beams related to a first mode of a base station;

a specific common search space CSS and/or a specific set of control resources CORESET;

at least one of msg2, msgB, msg4 in the random access procedure corresponds to PDCCH and/or PDSCH, and/or PDCCH scheduling msg3 retransmission.

8. The method of claim 7, wherein:

the signal is a synchronization signal block SSB, and the implicit indication relates to at least one of:

using a sequence specific to the first mode;

using a demodulation reference signal DMRS sequence specific to the first mode in the master information block MIB;

carrying the information related to the signal beam related to the first mode of the base station in the content of the MIB;

SSB time domain and/or frequency domain resource locations specific to the first mode are used.

9. The method of claim 7, wherein a particular common search space CSS and/or a particular set of control resources CORESET comprises at least one of:

CSS/CORESET specific to the first mode;

a DCI format dedicated to a first mode, wherein the DCI carries the information related to the signal beam related to the first mode of the base station;

an existing DCI format carrying the information related to the signal beam related to the first mode of the base station in the remaining bit field,

a DCI format carrying a DL grant, wherein the PDSCH corresponding to the DL grant comprises information related to the signal beam related to the first mode of the base station,

at least one PDCCH and/or PDSCH corresponding to at least one of msg2, msgB, msg4 in the random access procedure, and/or PDCCH scheduling msg3 retransmission involves at least one of the following:

The remaining bit fields in the DCI format of the PDCCH corresponding to at least one of msg2, msgB and msg4 and/or the PDCCH for scheduling msg3 retransmission carry the information related to the signal beam related to the first mode of the base station;

the MAC subheader in the PDSCH of the Msg2 or the msgB carries the information related to the signal beam related to the first mode of the base station;

the RAR in PDSCH of Msg2 or msgB carries the information related to the signal beam related to the first mode of the base station.

10. The method of claim 1, wherein the information related to the signal beam related to the first mode of the base station is received from the base station under the first condition,

the first condition includes at least one of:

the aggregation level of the search space of the UE meets a first threshold;

the serving base station of the UE enters a first mode;

the UE receives an indication that a base station starts a first mode;

the beam selected by the UE is adjusted or changed, wherein the selected beam comprises a preferred beam that the UE has reported to the base station.

11. A method performed by a base station in a communication system, comprising:

information related to the signal beam related to the first mode is transmitted to the user equipment UE.

12. The method of claim 11, wherein the information related to the signal beam related to the first mode comprises at least one of:

A pattern of beams associated with the first pattern for indicating transmit beam index information associated with the first pattern;

information of the signal beam indicating a beam associated with the first mode;

a pattern of antenna arrays for indicating antennas associated with the first mode;

codebook information transmitted by MIMO;

transmitting angle information of the beam;

beam width information;

a beam change flag indicating whether a beam configuration is adjusted to be associated with the first mode;

information indicating whether the first mode is activated.

13. The method of claim 12, wherein the pattern of beams associated with the first mode further comprises at least one of:

the number of time units information corresponding to the period of the beam associated with the first mode,

the number of time units occupied by the beam associated with the first mode in one period,

the number of beams and/or the position index information of the beam associated with the first pattern in one period.

14. The method of claim 11, further comprising at least one of:

receiving, from the UE, a measurement result reported after the measurement of the signal beam related to the first mode and/or a preferred beam index;

First delay configuration information for scheduled uplink signaling associated with a first mode is transmitted to the UE,

and indicating the sending beam index of the PUCCH to the UE through the PDCCH and/or the PDSCH in the message msg4, wherein the sending beam index comprises the sending beam index corresponding to the corresponding downlink beam index.

15. The method of claim 14, wherein the measurement result and/or the preferred beam index is received through a PRACH, or msg3 PUSCH, or msgA PUSCH,

wherein the first delay configuration information comprises a first number of time units and transmitting to the UE first delay configuration information for scheduled uplink signaling, comprising at least one of:

transmitting first delay configuration information of uplink transmission scheduled by the RAR UL grant through the RAR or the RAR UL grant of msg 2;

transmitting first delay configuration information of uplink transmission of msg3 retransmission scheduled by DCIUL grant in a PDCCH corresponding to msg3 through the PDCCH;

first delay configuration information for transmission of a PUCCH corresponding to an msg4 PDCCH and/or PDSCH is transmitted through the PDCCH and/or PDSCH.