CN109257754B

CN109257754B - Method and device for reporting and determining beam information

Info

Publication number: CN109257754B
Application number: CN201710579088.0A
Authority: CN
Inventors: 周恩治; 向高; 黄煌
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-07-14
Filing date: 2017-07-14
Publication date: 2021-06-22
Anticipated expiration: 2037-07-14
Also published as: WO2019011248A1; CN109257754A

Abstract

The embodiment of the application discloses a method and a device for reporting and determining beam information, and relates to the technical field of communication. The method for reporting the beam information may include: the terminal determines time-frequency resources scanned by the network equipment for the terminal reconfiguration wave beam; the terminal sends indication information to the network equipment, wherein the indication information is used for indicating the time-frequency resource index corresponding to the transmitting wave beam meeting the preset condition before reconfiguration or used for indicating the time-frequency resource index corresponding to the transmitting wave beam meeting the preset condition after reconfiguration. The technical scheme can be applied to a scene after network equipment such as a base station reconfigures time-frequency resources scanned by beams for a terminal.

Description

Method and device for reporting and determining beam information

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for reporting and determining beam information.

Background

The development of mobile services places increasing demands on the data rate and efficiency of wireless communications. In 5G and future wireless communication systems, beamforming techniques are used to limit the energy of the transmitted signal within a certain beam direction, thereby increasing the efficiency of signal and reception. The beam forming technology can effectively enlarge the transmission range of wireless signals and reduce signal interference, thereby achieving higher communication efficiency and obtaining higher network capacity.

In a communication network using beamforming technology, a transmit beam and a receive beam need to be matched (i.e., beam aligned), so that the receive beam obtains a relatively good signal quality from the transmit beam, otherwise, relatively high communication efficiency cannot be obtained, and even communication cannot be performed. In general, matching of transmit and receive beams may be achieved by beam scanning. Specifically, the method comprises the following steps: the network equipment transmits reference signals to the terminal through a plurality of transmitting beams, wherein the reference signals are transmitted on a specific time frequency resource through each transmitting beam. After the beam scanning, the terminal may determine the signal strengths of different transmission beams by detecting the signal strengths of the reference signals received on different time-frequency resources, and report a time-frequency resource index corresponding to one or more transmission beams with better signal strength, so that the network device determines the transmission beam used in subsequently transmitting a signal to the terminal according to the correspondence between the time-frequency resource index and the transmission beam.

However, in the beam scanning process, the network device may reconfigure the time-frequency resources for beam scanning for the terminal, and in this case, how to continue to perform the beam alignment procedure, an effective solution has not been provided at present.

Disclosure of Invention

The application provides a method and a device for reporting and determining beam information, so that a terminal reports the beam information, a network device determines the beam information reported by the terminal, and further the beam alignment process is conveniently realized.

In a first aspect, a method and an apparatus for reporting beam information are provided.

In one possible design, the method may include: the terminal determines time-frequency resources scanned by the network equipment for the terminal reconfiguration wave beam; and then, sending indication information to the network equipment, wherein the indication information is used for indicating the time-frequency resource index corresponding to the transmitting beam meeting the preset condition before reconfiguration or used for indicating the time-frequency resource index corresponding to the transmitting beam meeting the preset condition after reconfiguration. It can be understood that, before the technical solution is executed, the network device has configured the time-frequency resource of beam scanning for the terminal. The triggering condition of the time-frequency resource for the network device to reconfigure the beam scanning for the terminal is not limited, for example, the network device may reconfigure the time-frequency resource for the beam scanning for the terminal before beam alignment is not determined yet, or reconfigure the time-frequency resource for the beam scanning for the terminal after one or more beam alignments have been determined. When the terminal receives the reconfiguration message sent by the network device, the terminal may determine that the network device reconfigures the time-frequency resource scanned by the beam for the terminal. The terminal may report the indication information under the direction of the network device or spontaneously. In the technical scheme, the terminal can report the time frequency resource index corresponding to the transmitting wave beam which meets the preset conditions before or after reconfiguration to the network equipment after the network equipment reconfigures the time frequency resource scanned by the wave beam for the terminal; and after the network device is reconfigured, the terminal will re-execute the beam detection process and record the detection result. Therefore, by reasonably setting the content indicated by the indication information, the time-frequency resource index reported by the terminal is a detection result obtained before reconfiguration, or a detection result obtained after measurement for a long time after reconfiguration, so that the probability that the transmission beam used for subsequently sending signals to the terminal, which is determined by the network equipment, is the transmission beam with higher signal intensity is improved.

Accordingly, an apparatus for reporting beam information is provided, which may implement the method for reporting beam information of the first aspect. For example, the apparatus may be a terminal, which may implement the above method by software, hardware, or by executing corresponding software by hardware.

In one possible design, the apparatus may include a processor and a memory. The processor is configured to enable the apparatus to perform the corresponding functions in the method of the first aspect. The memory is used for coupling with the processor and holds the necessary programs (instructions) and data for the device. The apparatus may further comprise a communication interface for supporting communication between the apparatus and other network elements. The communication interface may be a transceiver.

In one possible design, the apparatus may include a processing unit and a transceiver unit. The processing unit is configured to determine a time-frequency resource scanned by the network device for the reconfiguration beam of the terminal. The transceiver unit is configured to send indication information to the network device, where the indication information is used to indicate a time-frequency resource index corresponding to a transmission beam that satisfies a preset condition before reconfiguration, or is used to indicate a time-frequency resource index corresponding to a transmission beam that satisfies a preset condition after reconfiguration.

In a second aspect, the present application provides a method and apparatus for determining beam information.

In one possible design, the method may include: the network equipment reconfigures the time-frequency resource of beam scanning for the terminal; then receiving indication information sent by the terminal, wherein the indication information is used for indicating a time-frequency resource index corresponding to a transmitting beam meeting a preset condition before reconfiguration or is used for indicating a time-frequency resource index corresponding to a transmitting beam meeting the preset condition after reconfiguration; and then, determining a transmitting beam corresponding to the time-frequency resource index indicated by the indication information. Subsequently, the network device may select one or more transmission beams from the transmission beams corresponding to the time-frequency resource index indicated by the indication information to transmit signals to the terminal.

Accordingly, a beam determination apparatus is provided, which may implement the method of determining beam information of the second aspect. For example, the apparatus may be a network device such as a base station, which may implement the above method by software, hardware, or by hardware executing corresponding software.

In one possible design, the apparatus may include a processor and a memory. The processor is configured to enable the apparatus to perform the corresponding functions of the method of the second aspect. The memory is used for coupling with the processor and holds the necessary programs (instructions) and data for the device. The apparatus may further comprise a communication interface for supporting communication between the apparatus and other network elements. The communication interface may be a transceiver.

In one possible design, the apparatus may include a processing unit and a transceiver unit. The processing unit is used for reconfiguring time-frequency resources of beam scanning for the terminal. The receiving and sending unit is used for receiving indication information sent by the terminal, wherein the indication information is used for indicating a time-frequency resource index corresponding to a transmitting beam meeting a preset condition before reconfiguration or used for indicating a time-frequency resource index corresponding to a transmitting beam meeting the preset condition after reconfiguration. The processing unit is further configured to determine a transmission beam corresponding to the time-frequency resource index indicated by the indication information.

Based on any one of the technical solutions provided in the first aspect or the second aspect, in one possible design, when one of the following conditions is satisfied: T3-T1 is less than or equal to T1, T3-T2 is less than or equal to T2, T4-T1 is less than or equal to T3, and T4-T2 is less than or equal to T4. The indication information is used for indicating the time-frequency resource index corresponding to the transmitting beam meeting the preset condition before reconfiguration.

Based on any one of the technical solutions provided in the first aspect or the second aspect, in one possible design, when one of the following conditions is satisfied: T3-T1 is greater than T1, T3-T2 is greater than T2, T4-T1 is greater than T3, and T4-T2 is greater than T4. The indication information is used for indicating the time-frequency resource index corresponding to the transmission beam meeting the preset condition after reconfiguration.

Where T1 is a time at which the terminal determines reconfiguration, T2 is an effective time at which the terminal determines reconfiguration, T3 is a time at which the terminal receives an instruction instructing the terminal to transmit instruction information, T4 is a time at which the terminal transmits instruction information, and T1, T2, T3, and T4 are all preset time periods. The following detailed description may be referred to for related descriptions of these parameters, which are not repeated herein. In the two possible designs, by reasonably setting the size of the corresponding preset time period, the time-frequency resource index reported by the terminal can be a detection result obtained before reconfiguration or a detection result obtained after measurement for a long time after reconfiguration, so that the probability that the transmission beam used for subsequently transmitting signals to the terminal, which is determined by the network equipment, is the transmission beam with higher signal intensity is improved.

In one possible design, the method provided in the first aspect may further include: before the terminal sends the indication information to the network equipment, the terminal receives the configuration information sent by the network equipment, and the configuration information is used for indicating a preset time period. Correspondingly, the transceiving unit in the terminal provided in the first aspect may be further configured to: and receiving configuration information sent by the network equipment, wherein the configuration information is used for indicating a preset time period. Accordingly, the method provided by the second aspect may comprise: before the network equipment receives the indication information sent by the terminal, the configuration information is sent to the terminal, and the configuration information is used for indicating a preset time period. Accordingly, the transceiving unit in the network device provided by the second aspect may be further configured to: before receiving the indication information sent by the terminal, sending configuration information to the terminal, wherein the configuration information is used for indicating a preset time period.

The configuration information may be, for example and without limitation, at least one of the following signaling: radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, and Downlink Control Information (DCI). In this implementation, the network device configures the preset time period to the terminal in a signaling manner, which is not limited in this application, for example, the preset time period may also be pre-agreed, for example, pre-agreed by a protocol. Wherein the preset time period may be any one or more of the parameters of T1, T2, T3, and T4 described above. In this technical solution, the terminal may determine the content indicated by the reported indication information according to a size relationship between a difference between partial time points in t1, t2, t3, and t4 and a preset time period, and similarly, the network device may also determine the content indicated by the received indication information according to a size relationship between a difference between corresponding time points and a corresponding preset time period.

In one possible design, based on any one of the technical solutions provided in the first aspect or the second aspect, the indication information includes an indication field, and the indication field is used to indicate: the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmitting beam meeting the preset condition before reconfiguration, or the time-frequency resource index corresponding to the transmitting beam meeting the preset condition after reconfiguration. In this technical scheme, the terminal may not determine the content indicated by the indication information according to the size relationship between the difference between the partial time points in t1, t2, t3, and t4 and the preset time period, but directly carry an indication field in the indication information to indicate the content indicated by the indication information, so that, after receiving the indication information, the network device may determine, according to the indication field in the indication information, the correspondence between the transmission beam before reconfiguration and the time-frequency resource scanned by the beam, or determine, according to the correspondence between the transmission beam after reconfiguration and the time-frequency resource scanned by the beam, the transmission beam corresponding to the time-frequency resource index reported by the terminal.

In a third aspect, a method and an apparatus for reporting beam information are provided.

In one possible design, the method may include: the terminal determines time-frequency resources scanned by the network device for the terminal reconfiguration wave beam. The terminal transmits the indication information at/after time t1+ Tr1 or at/after time t2+ Tr 2. The indication information is used for indicating the time-frequency resource index corresponding to the transmission beam meeting the preset condition after reconfiguration. t1 is the time when the terminal determines the reconfiguration, t2 is the time when the terminal determines the reconfiguration to be effective, and Tr1 and Tr2 are both preset time periods. In other words, the terminal does not transmit the indication information within the time window Tr1 starting at the time t1 or within the time window Tr2 starting at the time t 2. Therefore, the beam scanning time is long enough after the reconfiguration is effective by reasonably setting the time period, so that the probability that the transmission beam which is determined by the network equipment according to the time-frequency resource index reported by the terminal and is used for subsequently transmitting signals to the terminal is higher, and the system performance is improved.

Correspondingly, an apparatus for reporting beam information is provided, which can implement the method for reporting beam information in the third aspect. For example, the apparatus may be a terminal, which may implement the above method by software, hardware, or by executing corresponding software by hardware.

In one possible design, the apparatus may include a processor and a memory. The processor is configured to enable the apparatus to perform the corresponding functions of the method of the third aspect. The memory is used for coupling with the processor and holds the necessary programs (instructions) and data for the device. The apparatus may further comprise a communication interface for supporting communication between the apparatus and other network elements. The communication interface may be a transceiver.

In one possible design, the apparatus may include a processing unit and a transceiver unit. The processing unit is configured to determine a time-frequency resource scanned by the network device for the reconfiguration beam of the terminal. The transceiving unit is used for transmitting the indication information at/after time t1+ Tr1 or at/after time t2+ Tr 2. The indication information is used for indicating the time-frequency resource index corresponding to the transmission beam meeting the preset condition after reconfiguration. t1 is the time when the terminal determines the reconfiguration, t2 is the time when the terminal determines the reconfiguration to be effective, and Tr1 and Tr2 are both preset time periods.

In a fourth aspect, an indication method and apparatus are provided.

In one possible design, the method may include: the network equipment reconfigures the time-frequency resources scanned by the beams for the terminal, and then sends a reporting instruction to the terminal at/after the time t1+ Tr1 or at/after the time t2+ Tr2, wherein the reporting instruction is used for indicating the terminal to send indication information, and the indication information is used for indicating the time-frequency resource index corresponding to the emission beams which meet the preset conditions after reconfiguration. t1 is the time when the terminal determines the reconfiguration, t2 is the time when the terminal determines the reconfiguration to be effective, and Tr1 and Tr2 are both preset time periods. In other words, the network device does not send the report command within the time window Tr1 starting at the time t1 or within the time window Tr2 starting at the time t 2. Therefore, the size of the corresponding time window is reasonably set, so that the beam scanning time is long enough after the reconfiguration is effective, the probability that the subsequent transmission beam for transmitting signals to the terminal, which is determined by the network equipment according to the time-frequency resource index reported by the terminal, is higher, and the system performance is improved.

Accordingly, an indication apparatus is provided, which may implement the indication method of the fourth aspect. For example, the apparatus may be a network device, which may implement the above method through software, hardware, or through hardware to execute corresponding software.

In one possible design, the apparatus may include a processor and a memory. The processor is configured to enable the apparatus to perform the corresponding functions of the method of the fourth aspect. The memory is used for coupling with the processor and holds the necessary programs (instructions) and data for the device. The apparatus may further comprise a communication interface for supporting communication between the apparatus and other network elements. The communication interface may be a transceiver.

In one possible design, the apparatus may include a processing unit and a transceiver unit. The processing unit is used for reconfiguring time-frequency resources of beam scanning for the terminal. The transceiver unit is configured to send a reporting instruction to the terminal at/after a time t1+ Tr1 or a time t2+ Tr2, where the reporting instruction is used to instruct the terminal to send instruction information, and the instruction information is used to instruct a time-frequency resource index corresponding to a transmission beam that satisfies a preset condition after reconfiguration. t1 is the time when the terminal determines the reconfiguration, t2 is the time when the terminal determines the reconfiguration to be effective, and Tr1 and Tr2 are both preset time periods.

In a fifth aspect, a method and an apparatus for reporting beam information are provided.

In one possible design, the method may include: the terminal determines time-frequency resources scanned by the network device for the terminal reconfiguration wave beam. If t5-t1 is equal to or less than Tu1, the terminal transmits the instruction information at time t1+ Tu 1. Alternatively, if t5-t2 is equal to or less than Tu2, the terminal transmits the instruction information at time t2+ Tu 2. The indication information is used for indicating the time-frequency resource index corresponding to the transmission beam meeting the preset condition after reconfiguration. t1 is the time when the terminal determines the reconfiguration, t2 is the time when the terminal determines the reconfiguration to be effective, and t5 is the time when the network device notifies the terminal of the transmission instruction information. Tu1 and Tu2 are both preset time periods. In the technical scheme, the method can be considered as follows: the terminal transmits indication information at max { t5, (t1+ Tu1) }. Alternatively, the indication information is transmitted at max { t5, (t2+ Tu2) }. Therefore, by reasonably setting the size of the Tu1 or the Tu2, the beam scanning time is long enough after the reconfiguration is effective, so that the probability that the transmission beam subsequently sending signals to the terminal, which is determined by the network equipment according to the time-frequency resource index reported by the terminal, is the transmission beam with higher signal intensity is higher, and the system performance is improved.

Correspondingly, an apparatus for reporting beam information is provided, and the apparatus can implement the indication method of the fifth aspect. For example, the apparatus may be a terminal, which may implement the above method by software, hardware, or by executing corresponding software by hardware.

In one possible design, the apparatus may include a processor and a memory. The processor is configured to enable the apparatus to perform the corresponding functions of the method of the fifth aspect. The memory is used for coupling with the processor and holds the necessary programs (instructions) and data for the device. The apparatus may further comprise a communication interface for supporting communication between the apparatus and other network elements. The communication interface may be a transceiver.

In one possible design, the apparatus may include a processing unit and a transceiver unit. The processing unit is configured to determine a time-frequency resource scanned by the network device for the reconfiguration beam of the terminal. The transceiving unit is used for sending the indication information at the time of t1+ Tu1 if t5-t1 is less than or equal to Tu 1; alternatively, if t5-t2 is equal to or less than Tu2, the instruction information is transmitted at time t2+ Tu 2. The indication information is used for indicating the time-frequency resource index corresponding to the transmission beam meeting the preset condition after reconfiguration. t1 is the time when the terminal determines the reconfiguration, t2 is the time when the terminal determines the reconfiguration to be effective, and t5 is the time when the network device notifies the terminal of the transmission instruction information. Tu1 and Tu2 are both preset time periods.

In a sixth aspect, a method and apparatus are provided for determining an available beam (i.e., a transmit beam referred to above that satisfies a predetermined condition).

In one possible design, the method may include: the terminal combines (or filters) the signal strength of the reference signal from a transmitting beam obtained in each beam measurement period in a measurement time window before the current time from the current time to determine whether the transmitting beam is an available beam.

In another possible design, the method may include: the terminal combines (or filters) the signal strengths of the reference signals from one transmit beam in a measurement time window before the current time, starting from the current time, at every measurement time interval x. If the block error rate (BLER) of the physical control channel (PDCCH) measured from the transmission beam is less than or equal to a threshold value continuously for a plurality of times, it is determined that the transmission beam is an available beam. Wherein, the terminal assumes that the transmission beam is used for transmitting the PDCCH, and may obtain an assumed BLER of the PDCCH according to the filtered signal strength.

Accordingly, an apparatus for determining available beams is provided. The apparatus may implement the method of determining available beams of the sixth aspect. For example, the apparatus may be a terminal, which may implement the above method by software, hardware, or by executing corresponding software by hardware.

In one possible design, the apparatus may include a processor and a memory. The processor is configured to enable the apparatus to perform the corresponding functions in the above-mentioned method of the sixth aspect. The memory is used for coupling with the processor and holds the necessary programs (instructions) and data for the device. The apparatus may further comprise a communication interface for supporting communication between the apparatus and other network elements. The communication interface may be a transceiver.

In one possible design, the apparatus may include a processing unit. The processing unit is configured to, from a current time, combine (or filter) signal strengths of reference signals from a transmission beam obtained in each beam measurement period in a measurement time window before the current time, and determine whether the transmission beam is an available beam.

In one possible design, the apparatus may include a processing unit. Wherein the processing unit is configured to, from a current time, combine (or filter) signal strengths of reference signals from one transmit beam in a measurement time window before the current time every measurement time interval x. If the BLER measured according to the transmitting beam is less than or equal to a threshold value continuously for multiple times, the transmitting beam is judged to be an available beam

The present application also provides a computer storage medium having stored thereon a computer program (instructions) which, when run on a computer, causes the computer to perform the method of any of the above aspects.

The present application also provides a computer program product which, when run on a computer, causes the computer to perform the method of any of the above aspects.

The present application also provides a communication chip having stored therein instructions, which when run on a network device or terminal, cause the network device or terminal to perform the method of the above aspects.

It is understood that any one of the apparatuses, computer storage media or computer program products provided above is used for executing the corresponding method provided above, and therefore, the beneficial effects achieved by the apparatuses, computer storage media or computer program products can refer to the beneficial effects in the corresponding methods, and are not described herein again.

Drawings

Fig. 1 is a schematic diagram of a communication system to which the technical solution provided by the present application is applied;

fig. 2 is a schematic diagram of a beam alignment procedure provided in the present application;

fig. 3 is a schematic diagram of a method for reporting and determining beam information according to the present application;

FIG. 4a is a timing diagram of t1, t2, and t4 according to the present disclosure;

FIG. 4b is a schematic diagram of another timing relationship of t1, t2 and t4 provided herein;

FIG. 5a is a schematic diagram illustrating a timing relationship of t1, t2, t3 and t 4;

FIG. 5b is a schematic diagram of another timing relationship of t1, t2, t3 and t4 provided herein;

FIG. 5c is a schematic diagram of another timing relationship of t1, t2, t3 and t4 provided herein;

FIG. 6 is a schematic timing diagram of another example of t1, t2, t3 and t4 provided herein;

fig. 7 is a schematic diagram of another method for reporting and determining beam information according to the present application;

fig. 8 is a schematic diagram of another method for reporting and determining beam information according to the present application;

fig. 9 is a schematic diagram of another method for reporting and determining beam information according to the present application;

FIG. 10 is a timing diagram illustrating the determination of available beams according to the present application;

FIG. 11 is a timing diagram illustrating another example of determining available beams provided herein;

fig. 12 is a simplified structural diagram of a terminal according to the present application;

fig. 13 is a simplified structural diagram of a network device provided in the present application;

here, t1 is the time at which the terminal determines the reconfiguration, t2 is the time at which the terminal determines the reconfiguration to be effective, t3 is the time at which the terminal receives the instruction instructing the terminal to transmit the instruction information, and t4 is the time at which the terminal transmits the instruction information.

Detailed Description

The term "plurality" in this application means two or more. The term "and/or" in the present application is only one kind of association relationship describing the associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship. The terms "first", "second", and the like in the present application are used for distinguishing different objects, and do not limit the order of the different objects.

The technical scheme provided by the application can be applied to various communication systems using the beam scanning technology, for example, the beam scanning technology is adopted on the basis of the existing communication system, a 5G communication system, a future evolution system or a plurality of communication fusion systems and the like. A variety of application scenarios may be included, for example, scenarios such as machine-to-machine (M2M), D2M, macro-micro communication, enhanced mobile broadband (eMBB), ultra high reliability and ultra low latency communication (urrllc), and mass internet of things communication (mtc). These scenarios may include, but are not limited to: the communication scene between the terminals, the communication scene between the network equipment and the network equipment, the communication scene between the network equipment and the terminals and the like. The technical scheme provided by the application can also be applied to scenes such as communication between terminals in a 5G communication system or communication between network equipment and the network equipment.

Fig. 1 is a schematic diagram of a communication system to which the technical solution provided in the present application is applicable, and the communication system may include one or more network devices 100 (only 1 is shown) and one or more terminals 200 connected to the network devices 100.

The network device 100 may be a device capable of communicating with the terminal 200. The network device 100 may be a transmission node (TRP), a base station, a relay station, an access point, or the like. The network device 100 may be a Base Transceiver Station (BTS) in a global system for mobile communication (GSM) or Code Division Multiple Access (CDMA) network, or may be an nb (nodeb) in a Wideband Code Division Multiple Access (WCDMA), or may be an eNB or enodeb (evolved nodeb) in LTE. The network device 100 may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario. Network device 100 may also be a network device in a 5G communication system or a network device in a future evolution network; but also wearable devices or vehicle-mounted devices, etc.

The terminal 200 may be a User Equipment (UE), an access terminal, a UE unit, a UE station, a mobile station, a remote terminal, a mobile device, a UE terminal, a wireless communication device, a UE agent, a UE device, or the like. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved PLMN network, etc.

A beam (beam) and a Beam Pair (BPL) are introduced into the communication system. A beam is a communication resource. The beams may be divided into transmit beams and receive beams. The technique of forming the beam may be a beamforming technique or other technical means. Beamforming includes transmit beamforming and receive beamforming.

Transmitting a beam: the transmitting terminal equipment transmits signals with a certain beam forming weight value, so that beams with space directivity are formed by the transmitted signals. In the uplink direction, the transmitting end device may be a terminal; in the downlink direction, the transmitting end device may be a network device.

Receiving a beam: the receiving end equipment sends signals with a certain beam forming weight value, so that the signals are received to form a beam with space directivity. In the uplink direction, the receiving end device may be a network device; in the downlink direction, the receiving end device may be a terminal.

And (3) transmitting beam forming: when transmitting end equipment with an antenna array transmits signals, a specific amplitude and a specific phase are set on each antenna array of the antenna array, so that the transmitted signals have certain spatial directivity, namely, the signal power is high in certain directions, the signal power is low in certain directions, and the direction with the highest signal power is the direction of transmitting beams. The antenna array comprises a plurality of antenna elements, and the attached specific amplitude and phase are beam forming weights.

And receiving beam forming: when receiving end equipment with an antenna array receives signals, a specific amplitude and a specific phase are set on each antenna element of the antenna array, so that the power gain of the received signals has directivity, namely the power gain is high when the signals in certain directions are received, the power gain is low when the signals in certain directions are received, and the direction with the highest power gain is the direction of the received beams when the signals are received. The antenna array comprises a plurality of antenna elements, and the attached specific amplitude and phase are beam forming weights.

Transmitting a signal using a certain transmit beam: and transmitting signals by using a certain beamforming weight.

Receive signals using receive beams: a signal is received using a certain beamforming weight.

Different beams may be considered different resources. The same information or different information may be transmitted using (or through) different beams. The beam pairs are built on the concept of beams. A beam pair typically comprises one transmit beam for a transmitting end device and one receive beam for a receiving end device. It should be noted that, unless otherwise noted, the transmit beams in the following description refer to transmit beams of the network device, and the receive beams refer to receive beams of the terminal.

In a communication system, such as a 5G New Radio (NR) system, a network device and a terminal may each generate one or more transmit beams and one or more receive beams. Beam alignment is required before data transmission.

Fig. 2 shows a beam alignment procedure. The method specifically comprises the following steps:

s101: the network equipment configures time-frequency resources for beam scanning for the terminal and executes a beam scanning process. Specifically, the method comprises the following steps: and the network equipment sends a configuration message to the terminal, wherein the configuration message is used for indicating the time-frequency resources of beam scanning configured by the base station. The configuration message may include information of the time-frequency resource scanned by the configured beam, for example, a correspondence between the time-frequency resource scanned by the configured beam and the transmission beam. The network equipment transmits reference signals to the terminal on a plurality of time-frequency resources through a plurality of transmitting beams, wherein the reference signals are transmitted to the terminal on one time-frequency resource through one or more transmitting beams. In other words, for a network device, one or more transmit beams correspond to one time-frequency resource. The reference signals transmitted through the different transmit beams may be the same or different. Resource multiplexing can be performed between the reference signals transmitted through different transmission beams, such as time domain and/or frequency domain resource multiplexing through time division, frequency division, code division or a combination thereof.

It should be noted that, for the terminal, multiple transmit beams corresponding to the same time-frequency resource may be regarded as one transmit beam, and therefore, for the terminal, one transmit beam corresponds to one time-frequency resource.

Wherein, the reference signal may be, for example, but not limited to, at least one of the following reference signals: a reference signal in a synchronization signal block (SS block), or a channel state information reference signal (CSI-RS). The reference signal in the SS block may be, for example and without limitation, at least one of the following reference signals: primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), physical broadcast channel demodulation reference signal (PBCH-DMRS).

The network device performs beam scanning using dedicated time-frequency resources, which are referred to as time-frequency resources of the beam scanning. When the network device uses different reference signals to scan beams, the time-frequency resources corresponding to one transmitted beam may be different in size. For example, if the network device performs beam scanning using the reference signal in the SS block, the time-frequency resource corresponding to one transmission beam may be one SS block, or may be a part of the time-frequency resource in one SS block. Thus, one transmit beam may correspond to one SS block, or multiple transmit beams may correspond to one SS block. For another example, if the network device uses the CSI-RS to perform beam scanning, specifically, the network device may use the CSI-RS resource to perform beam scanning, and in this case, the time-frequency resource corresponding to one transmission beam is one CSI-RS resource. In addition, specifically, the network device may use the CSI-RS port to perform beam scanning, and in this case, the time-frequency resource corresponding to one transmission beam may be one CSI-RS port, and a plurality of ports may form one CSI-RS resource. It should be noted that the time-frequency resource corresponding to one transmission beam is a set of Resource Elements (REs). One CSI-RS resource contains one or more CSI-RS ports, one CSI-RS port being a set of some REs.

In some embodiments, the network device may perform the beam scanning procedure periodically. When the network device performs beam scanning using different reference signals, the beam scanning periods may be different. For example, if the network device performs beam scanning using reference signals in an SS block, the beam scanning period may be, for example and without limitation, one or more SS burst sets (sets of synchronization signal bursts), and one SS burst set may include one or more SS blocks. For another example, if the network device uses CSI-RS for beam scanning, the beam scanning period may be, for example and without limitation, one or more CSI-RS bursts, and one CSI-RS burst may include one or more CSI-RS resources.

Each time frequency resource corresponding to the transmitting wave beam has an index, and the index is called as a time frequency resource index. The time-frequency resource index may be, for example and without limitation, one or a combination of at least two of the following information: a frame number, a subframe number, a slot number, an Orthogonal Frequency Division Multiplexing (OFDM) symbol index number, an SS burst set index number, an SS block index number, a CSI-RS burst index number, a CSI-RS resource index number, a CSI-RS port number, and the like. In addition, when the network device periodically performs beam scanning, the time-frequency resource index may also be a logical index number of the time-frequency resource within one beam scanning period. For example, if the beam scanning period is one SS burst set, and one SS burst set includes L SS blocks, a logical index number may be set for each SS block in the SS burst set, and the range is 1 to L. If the beam scanning period is one CSI-RS burst, a logical index number may be set for each CSI-RS resource/port in the CSI-RS burst.

S102: the terminal performs a beam detection procedure. Specifically, the terminal receives the reference signals transmitted by a plurality of, e.g., each transmission beam of the network device, and then estimates the signal strength of the plurality of, e.g., each transmission beam of the network device according to the received reference signals.

In an embodiment in which the network device periodically performs the beam scanning procedure, the terminal may perform the combination according to the signal strength of the reference signal sent by the same transmission beam in multiple beam scanning periods to obtain the signal strength of the reference signal sent by the transmission beam (i.e., the signal strength of the transmission beam).

S103: and the terminal executes the beam reporting process. Specifically, the terminal reports the time-frequency resource index corresponding to the transmission beam with higher signal strength (i.e., the time-frequency resource index corresponding to the one or more transmission beams) to the network device. Subsequently, the network device may select one or more transmission beams from the transmission beams corresponding to the one or more time-frequency resource indices to transmit a control channel, a data channel, a sounding signal, or the like.

In an alternative implementation manner, the network device may simultaneously use multiple transmit beams to transmit the reference signal on one time-frequency resource, and the terminal does not distinguish the multiple transmit beams on the time-frequency resource, that is, the terminal may regard the multiple transmit beams as one transmit beam. If the terminal reports the index of the time-frequency resource to the network equipment, the network equipment confirms that the transmitting wave beam corresponding to the index of the time-frequency resource reported by the terminal is the plurality of transmitting wave beams, and then uses all or part of the transmitting wave beams to carry out subsequent communication.

The terminal may record the corresponding time-frequency resource index of the one or more transmission beams with higher signal strength, the signal strength of the one or more transmission beams, and the identification of the reception beam receiving the reference signal from the one or more transmission beams. The information reported by the terminal may include: the time frequency resource index and the signal intensity of the transmitting wave beam corresponding to the time frequency resource index. For example, but not limited to, characterizing the signal strength of the transmit beam by at least one of a Reference Signal Received Power (RSRP) and a Reference Signal Received Quality (RSRQ) of a reference signal transmitted on the transmit beam.

For example, the terminal may execute the beam reporting procedure when receiving a reporting instruction sent by the network device. For example, the network device may send a reporting instruction to the terminal, and optionally, the network device may also send some configuration information of information reported by the terminal to the terminal, such as, but not limited to, the number of beams to be reported, resources used for reporting, and reporting time.

For example, the terminal may autonomously perform a beam reporting procedure. The reported content may be transmitted in Uplink Control Information (UCI). When a certain condition is met, the terminal can trigger a beam reporting process. For example, if the signal intensity of the transmission beam currently detected by the terminal is higher than a certain threshold, or higher than the signal intensity of the currently used transmission beam by a certain threshold, the beam reporting process is triggered. For another example, if it is detected that a beam failure occurs, a beam recovery request is initiated and new beam information is reported at the same time (i.e., a beam reporting procedure is triggered).

In one example, assume that a network device may generate 3 transmit beams, labeled transmit beams 1, 2, 3, respectively. The network device then transmits a reference signal at SS block1 for each SS block set via transmit beam 1, transmits a reference signal at SS block2 for each SS block set via transmit beam 2, and transmits a reference signal at SS block3 for each SS block set via transmit beam 3. And the terminal determines that the signal intensity of the transmitting beam 2 and the transmitting beam 3 is higher through the beam detection process, and feeds back the index of SS block2 and the signal intensity of the transmitting beam corresponding to the index of SS block2, and the index of SS block3 and the signal intensity of the transmitting beam corresponding to the index to the network equipment. Subsequently, the network device may determine, for example and without limitation, to subsequently transmit a control channel, a data channel, a sounding signal, or the like using transmit beam 2 according to the signal strengths of the transmit beams corresponding to the index of SS block2 and the index of SS block3, respectively.

The beam alignment process is described above, however, the network device may reconfigure the time-frequency resources of the beam sweep during the beam alignment process. In this case, how the terminal performs the reporting procedure and how the network device performs the beam determining procedure is a technical problem to be solved by the present application. Therefore, the application provides a method and a device for reporting beam information, and a method and a device for determining beam information. The technical solution provided by the present application is described below with reference to the accompanying drawings.

Example one

Fig. 3 is a schematic diagram illustrating a method for reporting and determining beam information according to the present application. Specifically, the method comprises the following steps:

s201 to S202: reference may be made to S101 to S102 above, although the present application is not limited thereto.

S203: and the network equipment reconfigures the time-frequency resource of beam scanning for the terminal. Namely: and the network equipment sends a reconfiguration message to the terminal, wherein the reconfiguration message is used for indicating the time-frequency resources of the beam scanning reconfigured by the base station. The reconfiguration message may include information of the time-frequency resources of the reconfigured beam scan, for example, a correspondence between the time-frequency resources of the reconfigured beam scan and the transmission beam.

The time-frequency resource scanned by the network device for reconfiguring the beam for the terminal under any condition is not limited, for example, refer to the prior art. The time-frequency resource for the terminal to reconfigure the beam scanning by the network device may be, for example, but not limited to, a period for reconfiguring an SS burst set, the number and/or position of SS blocks in an SS burst set, and the like; reconfiguring the corresponding relationship between the time frequency resource scanned by the beam and the transmission beam, for example, before reconfiguration, the time frequency resource 1 corresponds to the transmission beam 1, the time frequency resource 2 corresponds to the transmission beam 2, the time frequency resource 3 corresponds to the transmission beam 3, after reconfiguration, the time frequency resource 1 corresponds to the transmission beam 3, the time frequency resource 2 corresponds to the transmission beam 2, and the time frequency resource 3 corresponds to the transmission beam 1.

S204: the terminal determines time-frequency resources scanned by the network device for the terminal reconfiguration wave beam. And the terminal receives the reconfiguration message, namely, the terminal determines that the network equipment reconfigures the time-frequency resources scanned by the beams for the terminal.

Before the reconfiguration effective time begins, the terminal may, for example and without limitation, perform beam detection according to the beam detection procedure provided above, and record a detection result to determine a time-frequency resource index corresponding to a transmission beam that meets a preset condition before reconfiguration. After the reconfiguration effective time starts, the terminal may, for example and without limitation, perform beam detection according to the beam detection procedure provided above, and record a detection result again to determine a time-frequency resource index corresponding to a transmission beam that satisfies a preset condition after reconfiguration.

S205: and the terminal sends indication information to the network equipment, wherein the indication information is used for indicating the time-frequency resource index corresponding to the transmitting wave beam meeting the preset condition before reconfiguration or used for indicating the time-frequency resource index corresponding to the transmitting wave beam meeting the preset condition after reconfiguration.

In S205, the terminal may send the indication information to the network device when receiving the report instruction sent by the network device, or may send the indication information to the network device spontaneously, and the relevant description may refer to the above, which is not described herein again. The transmission beam meeting the preset condition may be a transmission beam with higher signal strength, and the application does not limit the specific implementation manner, for example, refer to example five below.

S206: the network equipment receives the indication information sent by the terminal and determines the transmitting wave beam corresponding to the time frequency resource index indicated by the indication information.

Subsequently, the network device may select one or more transmission beams from the transmission beams corresponding to the one or more time-frequency resource indexes indicated by the indication information to transmit a control channel, a data channel, a sounding signal, or the like.

If the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmission beam meeting the preset condition before reconfiguration, the network equipment determines the transmission beam corresponding to the time-frequency resource index indicated by the indication information according to the corresponding relation between the transmission beam and the time-frequency resource index before reconfiguration.

If the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmission beam meeting the preset condition after reconfiguration, the network equipment determines the transmission beam corresponding to the time-frequency resource index indicated by the indication information according to the corresponding relation between the transmission beam and the time-frequency resource index after reconfiguration.

The embodiment provides a method for reporting and determining beam information, and particularly provides a technical scheme that a terminal reports a time-frequency resource index after a network device reconfigures time-frequency resources scanned by a beam for the terminal in a beam scanning process, and a technical scheme that the network device determines a transmission beam used for subsequently transmitting a signal to the terminal.

The following describes a specific implementation of the indication information in the first embodiment by using a specific example:

example 1

First, the following parameters are defined:

t1 is the time when the terminal determines the reconfiguration, i.e. the time when the terminal receives the reconfiguration message sent by the network device. It can be understood that, without considering the transmission time of the reconfiguration information, the time when the terminal receives the reconfiguration message is the time when the network device sends the reconfiguration message.

t2 is the point in time at which the terminal determines the reconfiguration to take effect. The network device may send the effective time of the reconfiguration message to the terminal through signaling, or the effective time of the reconfiguration message may be agreed in advance between the network device and the terminal through an agreement or the like. The effective time of the reconfiguration message may be defined as, for example and without limitation: a time period from the reception of the reconfiguration message by the terminal. t2 is greater than t 1.

t3 is the time when the terminal receives the instruction instructing the terminal to transmit the instruction information. It can be understood that, without considering the transmission time of the instruction instructing the terminal to send the indication information, the time when the terminal receives the signaling is the time when the network device sends the signaling. The instruction for instructing the terminal to send the instruction of the instruction information is the reporting instruction described above.

t4 is the time when the terminal transmits the instruction information. Specifically, the time when the terminal sends the indication information to the network device after receiving the report instruction sent by the network device may be the time when the terminal spontaneously sends the indication information to the network device. It can be understood that, in a scenario where the terminal sends the indication information to the network device after receiving the reporting instruction sent by the network device, t4 may be a time when the network device notifies the terminal of reporting the indication information, and t4 may be, for example and without limitation, sent to the terminal by being carried in the reporting instruction. In a scenario where the terminal autonomously sends the indication information to the network device, t4 may be a time when the terminal itself determines to report the indication information.

It can be understood that, in the embodiment where the terminal sends the indication information to the network device after receiving the reporting instruction sent by the network device, or in the embodiment where the terminal sends the indication information to the network device autonomously, the parameters t1, t2, and t4 may be involved. In the embodiment that the terminal sends the indication information to the network device after receiving the report instruction sent by the network device, the parameter t3 is involved. In embodiments where the terminal autonomously sends the indication information to the network device, the parameter t3 may not be involved, and t4 is greater than t 3.

Mode 1: when T3-T1 is less than or equal to T1, the indication information is used to indicate the time-frequency resource index corresponding to the transmission beam satisfying the preset condition before reconfiguration. When T3-T1 is greater than T1, the indication information is used to indicate the time-frequency resource index corresponding to the transmission beam which satisfies the preset condition after reconfiguration.

Mode 2: when T3-T2 is less than or equal to T2, the indication information is used to indicate the time-frequency resource index corresponding to the transmission beam satisfying the preset condition before reconfiguration. When T3-T2 is greater than T2, the indication information is used to indicate the time-frequency resource index corresponding to the transmission beam which satisfies the preset condition after reconfiguration.

Mode 3: when T4-T1 is less than or equal to T3, the indication information is used to indicate the time-frequency resource index corresponding to the transmission beam satisfying the preset condition before reconfiguration. When T4-T1 is greater than T3, the indication information is used to indicate the time-frequency resource index corresponding to the transmission beam which satisfies the preset condition after reconfiguration.

Mode 4: when T4-T2 is less than or equal to T4, the indication information is used to indicate the time-frequency resource index corresponding to the transmission beam satisfying the preset condition before reconfiguration. When T4-T2 is greater than T4, the indication information is used to indicate the time-frequency resource index corresponding to the transmission beam which satisfies the preset condition after reconfiguration.

T1, T2, T3 and T4 are all preset time periods. T1, T2, T3 and T4 are all greater than 0. The specific values of T1, T2, T3, and T4 are not limited in this application. The longer the beam scanning time is, the higher the probability that the transmission beam subsequently sending signals to the terminal, which is determined by the network device according to the time-frequency resource index reported by the terminal, is the transmission beam with higher signal intensity is. Thus, specific values of T1, T2, T3, and T4 may be determined, for example and without limitation, according to the probability, that is: t1, T2, T3, and T4 may be a time period set to guarantee that the beam scanning time is long enough to guarantee the probability after the reconfiguration is effected. Optionally, T1, T2, T3, and T4 may each be greater than or equal to N beam measurement periods, N being an integer greater than or equal to 1. Of course, T1, T2, T3, and T4 may not be integer multiples of the beam measurement period. For example, T1, T2, T3, and T4 may be, for example, but not limited to, any of the following: frame number, subframe number, slot number, OFDM symbol number, seconds, milliseconds, etc.

In an embodiment where the terminal autonomously sends the indication information to the network device, the timing relationship of t1, t2, and t4 may be as shown in fig. 4a and 4 b. Among them, in FIG. 4a, t1 < t2 < t 4. In fig. 4b, t1 < t2 ═ t 4. In the examples shown in fig. 4a and 4b, whether the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmission beam meeting the preset condition before reconfiguration or the time-frequency resource index corresponding to the transmission beam meeting the preset condition after reconfiguration may be determined, for example, but not limited to, by the foregoing manner 3 or manner 4.

In the embodiment that the terminal sends the indication information to the network device after receiving the report instruction sent by the network device, the timing relationship among t1, t2, t3, and t4 may be as shown in fig. 5a to 5c and fig. 6. In FIGS. 5a to 5c, t2 < t 4. In fig. 6, t2 is t 4. Specifically, the method comprises the following steps:

in FIG. 5a, t1 < t2 < t3 < t 4. In this example, whether the time-frequency resource index indicated by the indication information is a time-frequency resource index corresponding to a transmission beam meeting the preset condition before reconfiguration or a time-frequency resource index corresponding to a transmission beam meeting the preset condition after reconfiguration may be determined, for example, but not limited to, by any one of the above-described modes 1 to 4.

In fig. 5b, t1 < t2 ═ t3 < t 4. In this example, whether the time-frequency resource index indicated by the indication information is a time-frequency resource index corresponding to a transmission beam meeting the preset condition before reconfiguration or a time-frequency resource index corresponding to a transmission beam meeting the preset condition after reconfiguration may be determined, for example, but not limited to, by any one of the above-described modes 1 to 4.

In FIG. 5c, t1 < t3 < t2 < t 4. In this example, whether the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmission beam meeting the preset condition before reconfiguration or the time-frequency resource index corresponding to the transmission beam meeting the preset condition after reconfiguration may be determined, for example, but not limited to, by the above-mentioned mode 1, mode 3, or mode 4.

It should be noted that t3 may also be less than or equal to t1, in this case, whether the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmission beam that satisfies the preset condition before reconfiguration, or the time-frequency resource index corresponding to the transmission beam that satisfies the preset condition after reconfiguration may be determined, for example, but not limited to, by way of the foregoing manner 1, manner 3, or manner 4. Fig. 4a to 4b, 5a to 5c, and 6 are merely examples of application scenarios of the technical solutions provided in the present application, and do not limit the application scenarios of the technical solutions provided in the present application.

Since the network device can obtain the signal transmission time between the terminal and the network device in the manner in the prior art, the above-mentioned t1, t2, t3 and t4 can be known to both the terminal and the network device.

The determining, by which of the above manners to be used between the terminal and the network device, whether the time-frequency resource index indicated by the indication information is the time-frequency resource index before reconfiguration or the time-frequency resource index after reconfiguration may be a time-frequency resource index agreed in advance between the network device and the terminal, for example, agreed in advance through a protocol. The network device may also notify the terminal through signaling, and the signaling may be, for example and without limitation, at least one of RRC signaling, MAC signaling, and DCI.

In addition, values of one or more of the parameters T1, T2, T3, and T4 may be predetermined between the network device and the terminal, for example, predetermined by a protocol. The network device may also notify the terminal through signaling, and the signaling may be, for example and without limitation, at least one of RRC signaling, MAC signaling, and DCI.

In this embodiment, the terminal determines to report the time-frequency resource index before reconfiguration or the time-frequency resource index after reconfiguration by comparing the size relationship between the difference between the partial time points in t1, t2, t3, and t4 and the preset time period. Since the network device can obtain the size relationship between the difference between the corresponding time points and the corresponding preset time period, it can also determine that the time-frequency resource index indicated by the received indication information is the time-frequency resource index before reconfiguration or the time-frequency resource index after reconfiguration. Therefore, the probability that the transmitting beam corresponding to the time-frequency resource index reported by the terminal is the transmitting beam with higher signal intensity is favorably improved by reasonably setting the size of the corresponding preset time period.

Example 2

The indication information may include an indication field for indicating: the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmitting beam meeting the preset condition before reconfiguration, or the time-frequency resource index corresponding to the transmitting beam meeting the preset condition after reconfiguration.

For example, the indication field occupies 1 bit. The binary number "0" is used to indicate: the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmitting wave beam which meets the preset condition before reconfiguration. Using a binary number "1" to indicate: the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmission beam which meets the preset condition after reconfiguration. For example, if the indication information includes an index of SS block1 and the indication field is "0", it indicates that the indication information indicates SS block1 before reconfiguration. If the indication information includes the index of SS block1 and the indication field is "1", it indicates that the indication information indicates reconfigured SS block 1.

In this embodiment, the terminal indicates, through an indication field in the indication information, that the reported time-frequency resource index is a time-frequency resource index corresponding to a transmission beam that meets a preset condition before or after reconfiguration. Thus, after receiving the indication information, the network device may determine, according to the indication field, the correspondence between the transmission beam before or after reconfiguration and the time-frequency resource index, and determine the transmission beam corresponding to the time-frequency resource index reported by the terminal. Therefore, the time-frequency resource index corresponding to the transmitting beam meeting the preset condition before reconfiguration can be reported by the terminal after reconfiguration, and the probability that the transmitting beam corresponding to the time-frequency resource index reported by the terminal is the transmitting beam with higher signal intensity is favorably improved by setting the reasonable trigger condition.

Example 3

In one implementation, before S205, the method may further include: and the network equipment sends information indicating the time-frequency resource index corresponding to the transmitting wave beam meeting the preset condition before the reconfiguration to the terminal. At this time, the indication information is used to indicate the time-frequency resource index corresponding to the transmission beam that satisfies the preset condition before reconfiguration.

In another implementation, before S205, the method may further include: and the network equipment sends information indicating the time-frequency resource index corresponding to the transmission beam meeting the preset condition after the reconfiguration reported by the terminal to the terminal. At this time, the indication information is used to indicate the time-frequency resource index corresponding to the transmission beam which satisfies the preset condition after reconfiguration.

The embodiment can be applied to a scene that the terminal sends the indication information to the network equipment after the network equipment sends the reporting instruction. In this embodiment, for example, but not limited to, according to any one of the manners in embodiment 1, the network device determines to send, to the terminal, information indicating a time-frequency resource index corresponding to a transmission beam that meets a preset condition before the terminal reports reconfiguration, or information indicating a time-frequency resource index corresponding to a transmission beam that meets a preset condition after the terminal reports reconfiguration. In this embodiment, the network device instructs the terminal to report the time-frequency resource index corresponding to the transmission beam that satisfies the preset condition before reconfiguration, or instructs the terminal to report the time-frequency resource index corresponding to the transmission beam that satisfies the preset condition after reconfiguration. In this way, terminal computational complexity can be saved.

Example two

Fig. 7 is a schematic diagram illustrating a method for reporting and determining beam information according to the present application. Specifically, the method comprises the following steps:

s301 to S304: reference may be made to S201 to S204 above, although the application is not limited thereto.

S305: the terminal transmits the indication information at/after time t1+ Tr1 or at/after time t2+ Tr 2. The indication information is used for indicating the time-frequency resource index corresponding to the transmission beam meeting the preset condition after reconfiguration. t1 is the time when the terminal determines the reconfiguration, t2 is the time when the terminal determines the reconfiguration to be effective, and Tr1 and Tr2 are both preset time periods.

The embodiment can be understood as follows: the terminal does not transmit the instruction information within the time window Tr1 starting at the time t1, and transmits the instruction information at the time of or after the time window Tr1 starting at the time t 1. Alternatively, the terminal does not transmit the instruction information within the time window Tr2 starting at the time t2, and transmits the instruction information at the time of or after the time window Tr2 starting at the time t 2.

For the explanation of the relevant contents such as S305, t1, t2, and the preset conditions, reference may be made to the above-mentioned embodiments, which are not described herein again. Note that the meaning of the instruction information in the present embodiment is different from that in the above-described embodiments. It is understood that, in the present embodiment, t4 is at/after time t1+ Tr1 or at/after time t2+ Tr 2.

Tr1 and Tr2 are both preset time periods. Tr1 and Tr2 are both greater than 0. The specific values of Tr1 and Tr2 are not limited in this application. The longer the beam scanning time is, the higher the probability that the transmission beam subsequently sending signals to the terminal, which is determined by the network device according to the time-frequency resource index reported by the terminal, is the transmission beam with higher signal intensity is. Therefore, specific values of Tr1 and Tr2 may be determined, for example, but not limited to, according to the probability, that is: tr1 and Tr2 may be a time period set to ensure that the beam scanning time is long enough to ensure this probability after the reconfiguration is effected. Optionally, Tr1 and Tr2 may each be greater than or equal to N beam measurement periods, N being an integer greater than or equal to 1. Of course, Tr1 and Tr2 may not be integral multiples of the beam measurement period. For example, Tr1 and Tr2 may be, for example and without limitation, any of the following: frame number, subframe number, slot number, OFDM symbol number, seconds, milliseconds, etc.

The indication information can be sent in any of the above manners between the terminal and the network device, which is pre-defined between the network device and the terminal, for example, pre-defined by a protocol. The network device may also notify the terminal through signaling, and the signaling may be, for example and without limitation, at least one of RRC signaling, MAC signaling, and DCI.

In addition, the values of one or more parameters of Tr1 and Tr2 may be predetermined between the network device and the terminal, for example, predetermined by a protocol. The network device may also notify the terminal through signaling, and the signaling may be, for example and without limitation, at least one of RRC signaling, MAC signaling, and DCI.

S306: reference may be made to S206 above, although the application is not limited thereto.

In this embodiment, after determining a time period of the reconfiguration time or determining a time period of the validation time of the reconfiguration, the terminal reports, to the network device, the time-frequency resource index corresponding to the transmission beam that satisfies the preset condition after the reconfiguration. Therefore, the beam scanning time is long enough after the reconfiguration is effective by reasonably setting the time period, so that the probability that the transmission beam which is determined by the network equipment according to the time-frequency resource index reported by the terminal and is used for subsequently transmitting signals to the terminal is higher, and the system performance is improved.

EXAMPLE III

Fig. 8 is a schematic diagram illustrating a method for reporting and determining beam information according to the present application. Specifically, the method comprises the following steps:

s401 to S404: reference may be made to S201 to S204 above, although the application is not limited thereto.

S405: and the network equipment sends a reporting instruction to the terminal at/after the time t1+ Tr1 or the time t2+ Tr2, wherein the reporting instruction is used for indicating the terminal to send indication information, and the indication information is used for indicating the time-frequency resource index corresponding to the transmission beam which meets the preset condition after reconfiguration. t1 is the time when the terminal determines the reconfiguration, t2 is the time when the terminal determines the reconfiguration to be effective, and Tr1 and Tr2 are both preset time periods. In other words, the network device does not send the report command within the time window Tr1 starting at the time t1 or within the time window Tr2 starting at the time t 2.

For the explanation of the related content in this embodiment, reference may be made to the above-described embodiments, which are not described herein again. It can be understood that the reporting instruction may carry a time at which the network device notifies the terminal of reporting the indication information, that is, the time t4 described above.

S406: the terminal receives the reporting instruction, and sends indication information to the network device at the reporting time indicated by the reporting instruction (i.e., at the time t4 described above), where the indication information is used to indicate the time-frequency resource index corresponding to the transmission beam that satisfies the preset condition after reconfiguration.

S407: reference may be made to S206 above, although the application is not limited thereto.

In this embodiment, the network device sends the reporting instruction after a time period of the reconfiguration time is determined by the terminal, or after a time period of the reconfiguration effective time is determined by the terminal, so as to instruct the terminal to send the time-frequency resource index corresponding to the transmission beam that satisfies the preset condition after reconfiguration. Therefore, the beam scanning time is long enough after the reconfiguration is effective by reasonably setting the time period, so that the probability that the transmission beam which is determined by the network equipment according to the time-frequency resource index reported by the terminal and is used for subsequently transmitting signals to the terminal is higher, and the system performance is improved.

Example four

Fig. 9 is a schematic diagram illustrating a method for reporting and determining beam information according to the present application. Specifically, the method comprises the following steps:

s501 to S504: reference may be made to S201 to S204 above, although the application is not limited thereto.

S505: if t5-t1 is equal to or less than Tu1, the terminal transmits the instruction information at time t1+ Tu 1. Alternatively, if t5-t2 is equal to or less than Tu2, the terminal transmits the instruction information at time t2+ Tu 2. The indication information is used for indicating the time-frequency resource index corresponding to the transmission beam meeting the preset condition after reconfiguration. t1 is the time when the terminal determines the reconfiguration, t2 is the time when the terminal determines the reconfiguration to be effective, and t5 is the time when the network device notifies the terminal of the transmission instruction information. Tu1 and Tu2 are both preset time periods.

For the explanation of the related content in this embodiment, reference may be made to the above-described embodiments, which are not described herein again.

Tu1 and Tu2 are both preset time periods. Tu1 and Tu2 are both greater than 0. The specific values of Tu1 and Tu2 are not limited in the present application. The longer the beam scanning time is, the higher the probability that the transmission beam subsequently sending signals to the terminal, which is determined by the network device according to the time-frequency resource index reported by the terminal, is the transmission beam with higher signal intensity is. Therefore, specific values of Tu1 and Tu2 may be determined according to the probability, for example but not limited to: tu1 and Tu2 may be a time period set to ensure that after reconfiguration takes effect, the beam scan time is long enough to ensure this probability. Optionally, Tu1 and Tu2 may each be greater than or equal to N beam measurement periods, N being an integer greater than or equal to 1. Of course, Tu1 and Tu2 may not be integer multiples of the beam measurement period. For example, Tu1 and Tu2 may be, for example and without limitation, any of the following: frame number, subframe number, slot number, OFDM symbol number, seconds, milliseconds, etc.

It is understood that t4 above is the time when the terminal actually sends the indication information, and specifically, the time when the network device notifies the terminal to send the indication information may also be the time when the terminal itself determines to send the indication information, and the related explanation can refer to the above. t5 is the time when the network device notifies the terminal of the transmission of the instruction information. The embodiment can be applied to a scene that the terminal sends the indication information to the network equipment after the network equipment sends the reporting instruction. If t5-t1 is larger than Tu1, the terminal transmits the indication information at time t 5. Or if t5-t2 is larger than Tu2, the terminal sends the indication information at time t 5. In both cases, t4 is conceptually the same as t 5.

S506: reference may be made to S206 above, although the application is not limited thereto.

In this embodiment, it can be considered that: the terminal transmits indication information at max { t5, (t1+ Tu1) }. Alternatively, the indication information is transmitted at max { t5, (t2+ Tu2) }. Therefore, by reasonably setting the size of the Tu1 or the Tu2, the beam scanning time is long enough after the reconfiguration is effective, so that the probability that the transmission beam subsequently sending signals to the terminal, which is determined by the network equipment according to the time-frequency resource index reported by the terminal, is the transmission beam with higher signal intensity is higher, and the system performance is improved.

EXAMPLE five

The present embodiment illustrates how the terminal determines the transmission beam, i.e., the available beam, that satisfies the predetermined condition.

The concept of "measurement time window" and "measurement time interval" is introduced in this embodiment. A measurement time window may comprise a plurality of beam measurement periods. The number of beam measurement periods included in the measurement time window may be specified in a protocol, or may be configured to the terminal by the network device through signaling. The measurement time window may be, for example but not limited to, any of the following: frame number, subframe number, time slot number, OFDM symbol number, second, millisecond, SS burst set number, CSI-RS burst number and the like. The time difference between the start moments of two adjacent measurement time windows is the measurement time interval.

The first method is as follows: the available beams are determined by a measurement time window. Specifically, the method comprises the following steps: the terminal combines (or filters) the signal strength of the reference signal from a transmitting beam obtained in each beam measurement period in a measurement time window before the current time from the current time to determine whether the transmitting beam is an available beam. As shown in fig. 10. Specifically, whether a transmit beam is an available beam may be determined by one of the following:

1) and if the terminal determines that the signal intensity of the reference signal from a transmitting beam obtained in a measurement time window before the current time from the current time is higher than a certain threshold value for N times, the transmitting beam is judged to be an available beam. The threshold values corresponding to different reference signals, for example, the SSblock reference signal and the CSI-RS reference signal, may be different, and the value N and the threshold value may be specified by a protocol or configured by a network device.

2) And if the terminal determines that the reference value of the reference signal from a transmitting beam obtained in a measurement time window before the current time from the current time meets the preset criterion, the transmitting beam is judged to be the available beam. The reference value may be, for example, but not limited to, of any of the following types: average value of signal intensity, minimum value of signal intensity, maximum value of signal intensity, variance of signal intensity, and weighted average value of signal intensity. If the reference value of the reference signal is the variance of the signal strength, the reference value of the reference signal meeting the preset criterion may be that the reference value of the reference signal is less than or equal to a threshold value; if the reference value of the reference signal is of another type, the reference value of the reference signal satisfying the predetermined criterion may be that the reference value of the reference signal is greater than or equal to a threshold value. One or more of the type of reference value, the preset criterion, the threshold value may be specified by a protocol or configured to the terminal by the network device.

The second method comprises the following steps: the available beams are determined by a number of measurements. Specifically, the method comprises the following steps: the terminal combines (or filters) the signal strengths of the reference signals from one transmit beam in a measurement time window before the current time, starting from the current time, at every measurement time interval x. And if the BLER measured according to the transmitting beam is continuously less than or equal to a threshold value for multiple times, the transmitting beam is judged to be an available beam. As shown in fig. 11.

Optionally, in each measurement time window, if the BLER is less than the threshold Qin, the terminal, for example, a physical layer of the terminal, generates an in-sync indication; if the BLER is greater than the threshold Qout, the terminal, e.g., the physical layer of the terminal, generates an out-of-sync indication. If the terminal continuously generates BR-N311 in-sync indications, the transmitting beam is determined to be an available beam. Where Qin, Qout, BR-N311 and measurement interval x are values specified by the network device configuration or protocol. The specific form of the measurement time interval x can be frame number, time slot number, OFDM symbol number, second, millisecond, SS burst set number, CSI-RS burst number and the like.

Optionally, the physical layer of the terminal may report the generated in-sync indication or out-sync indication to a higher layer of the terminal, e.g., layer 2 or layer 3, within each measurement time window. Optionally, if the signal strength measured by the physical layer of the terminal is between Qin and Qout, the physical layer of the terminal may report the same result as the last measurement, or the terminal may report a special status indication other than in-sync and out-of-sync.

It can be understood that the technical solution provided in this embodiment may be applied in a scenario where an available beam is determined before reconfiguration, in which case, the signal strengths used for the combination are all measured signal strengths before reconfiguration. The method can also be applied to a scenario in which available beams are determined after reconfiguration, and in this case, the signal strengths used for the combination are all measured signal strengths after reconfiguration.

It should be noted that, in some embodiments of the present application, the steps performed by the terminal in the above-provided technical solutions may be performed by a network device, in which case the steps performed by the network device in the above-provided technical solutions may be performed by the terminal. A person skilled in the art should be able to deduce, without inventive effort, the meaning of the related terms in the above-presented technical solutions in this embodiment, for example, the above-described transmission beam refers to a transmission beam of a terminal, and other examples are not described one by one.

The above-mentioned scheme provided by the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It is to be understood that the various network elements, such as network devices or terminals. To implement the above functions, it includes hardware structures and/or software modules for performing the respective functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the network device or the terminal may be divided into the functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation. The following description will be given taking the example of dividing each functional module corresponding to each function.

The embodiment of the application also provides a terminal. The terminal can be used for executing the steps executed by the terminal in any one of the drawings of fig. 3 and fig. 7-9. Fig. 12 shows a simplified terminal structure diagram. For ease of understanding and illustration, in fig. 12, the terminal is exemplified by a mobile phone. As shown in fig. 12, the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the terminal, executing software programs, processing data of the software programs and the like. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminals may not have input/output devices. The memory and the processor may be integrated together or may be provided separately.

When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 12. In an actual end product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.

In the embodiment of the present application, the antenna and the radio frequency circuit having the transceiving function may be regarded as a transceiving unit of the terminal, and the processor having the processing function may be regarded as a processing unit of the terminal. As shown in fig. 12, the terminal includes a transceiving unit 1201 and a processing unit 1202. A transceiver unit may also be referred to as a transceiver (including a transmitter and/or receiver), a transceiver, a transceiving device, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Optionally, a device for implementing a receiving function in the transceiving unit 1201 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiving unit 1201 may be regarded as a transmitting unit, that is, the transceiving unit 1201 includes a receiving unit and a transmitting unit. A transceiver unit may also sometimes be referred to as a transceiver, transceiving circuitry, or the like. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc. In some embodiments, the transceiving unit 1201 and the processing unit 1202 may be integrated together or may be provided separately. In addition, all functions in the processing unit 1202 may be integrated into one chip, or a part of functions may be integrated into one chip, so that another part of functions is integrated into one or more other chips, which is not limited in this application.

For example, in one implementation, the transceiving unit 1201 is configured to perform steps performed by the terminal in S201, S203, and/or S205 of fig. 3, and/or other steps in this application. The processing unit 1202 is configured to perform S202 and/or S204 of fig. 3, and/or other steps in this application.

For example, in another implementation, the transceiving unit 1201 is configured to perform steps performed by the terminal in S301, S303, and/or S305 of fig. 7, and/or other steps in this application. The processing unit 1202 is configured to perform S302 and/or S304 of fig. 7, and/or other steps in this application.

For example, in another implementation manner, the transceiving unit 1201 is configured to perform steps performed by the terminal in S401, S403, S405, and/or S406 of fig. 8, and/or other steps in this application. The processing unit 1202 is configured to perform S402 and/or S404 of fig. 8, and/or other steps in this application.

For example, in another implementation, the transceiving unit 1201 is configured to perform steps performed by the terminal in S501, S503 and/or S505 in fig. 9, and/or other steps in this application. The processing unit 1202 is configured to perform S502 and/or S504 of fig. 9, and/or other steps in this application.

The embodiment of the application also provides network equipment, such as a base station. Fig. 13 shows a simplified base station structure. The base station includes section 1301 and section 1302. The part 1301 is mainly used for receiving and transmitting radio frequency signals and converting the radio frequency signals and baseband signals; the section 1302 is mainly used for baseband processing, control of a base station, and the like. Portion 1301 may be generally referred to as a transceiver unit, transceiver, transceiving circuitry, or transceiver, etc. Section 1302 is typically a control center of the base station, which may be referred to generally as a processing unit, for controlling the base station to perform the steps described above with respect to the base station (i.e., serving base station) in fig. 13. Reference is made in particular to the description of the relevant part above.

The transceiver unit in section 1301 may also be referred to as a transceiver, or a transceiver, and includes an antenna and a radio frequency unit, where the radio frequency unit is mainly used for performing radio frequency processing. Optionally, a device used for implementing the receiving function in part 1301 may be regarded as a receiving unit, and a device used for implementing the sending function may be regarded as a sending unit, that is, part 1301 includes a receiving unit and a sending unit. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like, and a transmitting unit may be referred to as a transmitter, a transmitting circuit, or the like.

Section 1302 may include one or more boards, each board may include one or more processors and one or more memories, the processors being configured to read and execute programs in the memories to implement baseband processing functions and control of the base station. If a plurality of single boards exist, the single boards can be interconnected to increase the processing capacity. As an optional implementation, multiple boards may share one or more processors, multiple boards may share one or more memories, or multiple boards may share one or more processors at the same time. The memory and the processor may be integrated together or may be provided separately. In some embodiments, parts 1301 and 1302 may be integrated or may be separate. In addition, all functions in the part 1302 may be integrated in one chip, or part of the functions may be integrated in one chip, so that another part of the functions is integrated in one or more other chips, which is not limited in this application.

For example, in one implementation, the processing unit is configured to perform S206 of fig. 3, and/or other steps in the present application. The transceiver unit is configured to perform steps performed by the network device in S201, S203, and/or S205 of fig. 3, and/or other steps in this application.

For example, in another implementation, the processing unit is configured to perform S306 of fig. 7, and/or other steps in the present application. The transceiver unit is configured to perform steps performed by the network device in S301, S303, and/or S305 of fig. 7, and/or other steps in this application.

For example, in another implementation, the processing unit is configured to perform S407 of fig. 8, and/or other steps in this application. The transceiver unit is configured to perform steps performed by the network device in S401, S403, S405, and/or S406 of fig. 8, and/or other steps in this application.

For example, in another implementation, the processing unit is configured to perform S506 of fig. 9, and/or other steps in the present application. The transceiver unit is configured to perform steps performed by the network device in S501, S503 and/or S505 of fig. 9, and/or other steps in this application.

For the explanation and beneficial effects of the related content in any of the communication apparatuses provided above, reference may be made to the corresponding method embodiments provided above, and details are not repeated here.

The present application also provides a computer program product which, when run on a computer, causes the computer to perform any of the methods provided above. The present application also provides a communication chip having instructions stored therein, which when run on a network device or a terminal, causes the network device or the terminal to perform the method provided above.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the present application are all or partially generated upon loading and execution of computer program instructions on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or can comprise one or more data storage devices, such as a server, a data center, etc., that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for reporting beam information, the method comprising:

the terminal determines time-frequency resources scanned by the network equipment for reconfiguring beams for the terminal;

the terminal sends indication information to the network equipment, wherein the indication information is used for indicating a time-frequency resource index corresponding to a transmitting beam meeting a preset condition before reconfiguration or indicating a time-frequency resource index corresponding to a transmitting beam meeting a preset condition after reconfiguration;

when one of the following conditions is satisfied: T3-T1 is less than or equal to T1, T3-T2 is less than or equal to T2, T4-T1 is less than or equal to T3, and T4-T2 is less than or equal to T4, wherein the indication information is used for indicating the time-frequency resource index corresponding to the transmitting beam which meets the preset condition before reconfiguration;

and/or, when one of the following conditions is satisfied: T3-T1 is greater than T1, T3-T2 is greater than T2, T4-T1 is greater than T3, T4-T2 is greater than T4, and the indication information is used for indicating the time-frequency resource index corresponding to the transmission beam which meets the preset condition after reconfiguration;

wherein the T1 is a time when the terminal determines the reconfiguration, the T2 is an effective time when the terminal determines the reconfiguration, the T3 is a time when the terminal receives an instruction indicating that the terminal transmits the indication information, the T4 is a time when the terminal transmits the indication information, and the T1, the T2, the T3, and the T4 are all time periods of preset sizes.

2. The method of claim 1, wherein before the terminal sends the indication information to the network device, the method further comprises:

and the terminal receives configuration information sent by the network equipment, wherein the configuration information is used for indicating the preset time period.

3. The method of claim 1, wherein the indication information comprises an indication field indicating that: the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmitting beam meeting the preset condition before reconfiguration, or the time-frequency resource index corresponding to the transmitting beam meeting the preset condition after reconfiguration.

4. A method of determining beam information, the method comprising:

the network equipment reconfigures the time-frequency resource of beam scanning for the terminal;

the network equipment receives indication information sent by the terminal, wherein the indication information is used for indicating a time-frequency resource index corresponding to a transmitting beam meeting a preset condition before reconfiguration or indicating a time-frequency resource index corresponding to a transmitting beam meeting a preset condition after reconfiguration;

the network equipment determines a transmitting wave beam corresponding to the time-frequency resource index indicated by the indication information;

5. The method according to claim 4, wherein before the network device receives the indication information sent by the terminal, the method further comprises:

and the network equipment sends configuration information to the terminal, wherein the configuration information is used for indicating the preset time period.

6. The method of claim 4, wherein the indication information comprises an indication field, and wherein the indication field is used for indicating that: the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmitting beam meeting the preset condition before reconfiguration, or the time-frequency resource index corresponding to the transmitting beam meeting the preset condition after reconfiguration.

7. A terminal, characterized in that the terminal comprises:

a processing unit, configured to determine a time-frequency resource scanned by a network device for reconfiguring a beam for the terminal;

a transceiver unit, configured to send indication information to the network device, where the indication information is used to indicate a time-frequency resource index corresponding to a transmission beam that meets a preset condition before reconfiguration, or is used to indicate a time-frequency resource index corresponding to a transmission beam that meets a preset condition after reconfiguration;

8. The terminal according to claim 7, wherein the indication information comprises an indication field, and wherein the indication field is configured to indicate: the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmitting beam meeting the preset condition before reconfiguration, or the time-frequency resource index corresponding to the transmitting beam meeting the preset condition after reconfiguration.

9. A network device, characterized in that the network device comprises:

the processing unit is used for reconfiguring time-frequency resources of beam scanning for the terminal;

a transceiver unit, configured to receive indication information sent by the terminal, where the indication information is used to indicate a time-frequency resource index corresponding to a transmission beam that meets a preset condition before reconfiguration, or is used to indicate a time-frequency resource index corresponding to a transmission beam that meets a preset condition after reconfiguration;

the processing unit is further configured to determine a transmission beam corresponding to the time-frequency resource index indicated by the indication information;

10. The network device of claim 9, wherein the indication information comprises an indication field, and wherein the indication field is configured to indicate that: the time-frequency resource index indicated by the indication information is the time-frequency resource index corresponding to the transmitting beam meeting the preset condition before reconfiguration, or the time-frequency resource index corresponding to the transmitting beam meeting the preset condition after reconfiguration.

11. A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, causes the method of any one of claims 1 to 6 to be performed.