CN110086511B

CN110086511B - Beam forming method and device

Info

Publication number: CN110086511B
Application number: CN201810074888.1A
Authority: CN
Inventors: 黄秋萍; 陈润华; 高秋彬; 拉盖施
Original assignee: Telecommunications Science and Technology Research Institute Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-01-25
Filing date: 2018-01-25
Publication date: 2021-02-05
Anticipated expiration: 2038-01-25
Also published as: CN110086511A

Abstract

The embodiment of the invention provides a method and a device for beam forming, which are used for solving the technical problem that an uplink sending beam cannot be determined when a terminal transmits uplink information in the prior art. The method comprises the following steps: receiving first indication information and/or second indication information sent by a base station; the first indication information is used for indicating at least one first RS resource selected by the base station in the configured multiple reference signal RS resources, and the second indication information is used for indicating the association relationship between the configured second RS resource and the third RS resource; and determining an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, wherein the second RS resource is a resource associated with at least one uplink signal, and the uplink signal is transmitted by using the uplink transmission beam.

Description

Beam forming method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for beamforming.

Background

The beam forming is a signal preprocessing technology based on an antenna array, and generates a directional beam by adjusting the weighting coefficient of each array element in the antenna array, so that obvious array gain can be obtained. A wireless transmitter (e.g., a gNB) with multiple antennas may form a narrower wireless signal that points in a particular direction (e.g., beamforming).

Generally, beamforming can be in the digital domain or in the analog domain. For digital beamforming, each antenna element has a separate baseband module, and each antenna element can independently control the amplitude and phase of signals transmitted thereon, so that digital beams can be narrowband, and different digital beams can be multiplexed in the time or frequency domain. For analog beamforming, multiple antenna elements share the same digital baseband module, with each antenna element having an independent phase shifter. The signals transmitted by each antenna element can only be adjusted in the transmission phase shift, and therefore the analog beams can only be multiplexed in the time domain.

However, when the terminal transmits the uplink reference signal and the uplink channel in the same timeslot, the uplink reference signal and the uplink channel may be multiplexed in a time domain, a frequency domain, or in other multiplexing manners. Because analog beam switching requires a certain switching time, uplink channels and uplink reference signals transmitted in the same time slot or other same time resources may not be transmitted using respective beamforming information, which may cause a problem that a terminal cannot determine uplink transmission beams of the uplink channels and the uplink reference signals, thereby affecting system transmission performance.

Disclosure of Invention

The embodiment of the invention provides a method and a device for beam forming, which are used for solving the technical problem that an uplink sending beam cannot be determined when a terminal transmits uplink information in the prior art.

In a first aspect, an embodiment of the present invention provides a method for beamforming, where the method is applied to a terminal, and includes:

receiving first indication information and/or second indication information sent by a base station; the first indication information is used for indicating at least one first RS resource selected by the base station in the configured multiple reference signal RS resources, and the second indication information is used for indicating the association relationship between the configured second RS resource and the third RS resource;

determining an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, wherein the second RS resource is a resource associated with at least one uplink signal;

and transmitting the uplink signal by adopting the uplink transmitting wave beam.

Optionally, the uplink signal includes a first signal and a second signal transmitted on the same time domain resource block, where the first signal is a signal carried by an uplink channel or an uplink reference signal, the second signal is a signal carried by an uplink channel or an uplink reference signal, and the second signal is different from the first signal.

Optionally, the determining, by the second RS resource, an uplink transmission beam of an uplink signal according to the first indication information and the second indication information includes:

determining an uplink transmission beam of the first signal according to the first RS resource;

and determining an uplink transmission beam of the second signal according to a third RS resource associated with the second RS, wherein a time interval between the first signal and the second signal is greater than or equal to a preset time interval.

Optionally, the determining an uplink transmission beam of an uplink signal according to the first indication information includes:

and determining an uplink transmission beam commonly adopted by the first signal and the second signal according to one first RS resource indicated by the first indication information, wherein a time interval between the first signal and the second signal is smaller than a preset time interval.

Optionally, one or more first RS resources indicated by the first indication information correspond to the first signal, and one or more first RS resources indicated by the first indication information correspond to the second signal.

and determining an uplink transmission beam commonly adopted by the first signal and the second signal according to the first RS resource corresponding to the first signal or the first RS resource corresponding to the second signal.

Optionally, the determining, according to the first RS resource corresponding to the first signal or the first RS resource corresponding to the second signal, an uplink transmission beam commonly used by the first signal and the second signal includes:

determining an uplink transmission beam commonly adopted by the first signal and the second signal according to a first RS resource corresponding to a signal with an earlier transmission time in the first signal and the second signal; alternatively, the first and second electrodes may be,

and determining an uplink transmission beam commonly adopted by the first signal and the second signal according to a first RS resource corresponding to a signal of which the resource type is a preset resource type in the first signal and the second signal.

determining an uplink transmission beam of the first signal according to a first RS resource corresponding to the first signal;

and determining an uplink transmission beam of the second signal according to the first RS resource corresponding to the second signal.

Optionally, the determining an uplink transmission beam of an uplink signal according to the second indication information includes:

and determining an uplink transmission beam commonly adopted by the first signal and the second signal according to a third RS resource associated with the second RS resource.

Optionally, a second RS resource in one or more association relations indicated by the second indication information corresponds to the first signal, the second RS resource in one or more association relations indicated by the second indication information corresponds to the second signal, and the association relation is an association relation between the second RS resource and a third RS resource.

determining an uplink transmission beam commonly adopted by the first signal and the second signal according to a third RS resource associated with the second RS resource corresponding to the first signal; alternatively, the first and second electrodes may be,

and determining an uplink transmission beam commonly adopted by the first signal and the second signal according to a third RS resource associated with the second RS resource corresponding to the second signal.

determining an uplink transmission beam of the first signal according to a third RS resource associated with a second RS resource corresponding to the first signal;

and determining an uplink transmission beam of the second signal according to a third RS resource associated with a second RS resource corresponding to the second signal.

In a second aspect, an embodiment of the present invention provides a method for beamforming, which is applied to a base station, and includes:

generating first indication information for indicating at least one first RS resource selected by the base station in the configured plurality of RS resources and/or second indication information for indicating an association relation between the configured second RS resource and a third RS resource;

sending the first indication information and/or the second indication information to the terminal, so that the terminal device determines an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, wherein the second RS resource is a resource associated with at least one uplink signal;

and receiving the uplink signal transmitted by the terminal according to the uplink transmission beam.

Optionally, the receiving the uplink signal transmitted by the terminal according to the uplink transmission beam includes:

determining an uplink receiving beam corresponding to an uplink transmitting beam of an uplink signal transmitted by the terminal;

and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, the receiving the uplink signal transmitted by the terminal according to the uplink transmission beam by using the second RS resource associated with the second signal includes:

determining an uplink receiving wave beam of the first signal according to the first RS resource;

determining an uplink receiving beam of the second signal according to a third RS resource associated with the second RS;

and receiving the uplink signal by adopting the uplink receiving beam.

In a third aspect, an embodiment of the present invention provides a terminal, including:

the receiver is used for receiving the first indication information and/or the second indication information sent by the base station; the first indication information is used for indicating at least one first RS resource selected by the base station in the configured multiple reference signal RS resources, and the second indication information is used for indicating the association relationship between the configured second RS resource and the third RS resource;

a processor, configured to determine an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, where the second RS resource is a resource associated with at least one uplink signal;

and the transmitter is used for transmitting the uplink signal by adopting the uplink transmitting beam.

Optionally, the second RS resource is associated with the second signal, and the processor is configured to:

and determining an uplink transmission beam of the second signal according to a third RS resource associated with the second RS.

Optionally, the processor is configured to:

and determining an uplink transmission beam commonly adopted by the first signal and the second signal according to the first RS resource indicated by the first indication information.

Optionally, the processor is configured to determine an uplink transmission beam of an uplink signal according to the first indication information, and specifically configured to:

and determining an uplink transmission beam commonly adopted by the first signal and the second signal according to the first RS resource corresponding to the first signal or the first RS resource corresponding to the second signal, wherein a time interval between the first signal and the second signal is smaller than a preset time interval.

Optionally, the processor is specifically configured to:

Optionally, the receiver is configured to determine an uplink transmission beam of an uplink signal according to the first indication information, and specifically configured to:

determining an uplink transmission beam of the second signal according to a first RS resource corresponding to the second signal; wherein a time interval between the first signal and the second signal is greater than or equal to a preset time interval.

Optionally, the processor is configured to determine an uplink transmission beam of an uplink signal according to the second indication information, and specifically configured to:

Optionally, the processor is configured to:

In a fourth aspect, an embodiment of the present invention provides a base station, including:

a processor, configured to generate first indication information for indicating at least one first RS resource selected by a base station in a plurality of configured RS resources, and/or second indication information for indicating an association relationship between a second RS resource and a third RS resource that are configured;

a transmitter, configured to send the first indication information and/or the second indication information to the terminal, so that the terminal device determines an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, where the second RS resource is a resource associated with at least one uplink signal;

and the receiver is used for receiving the uplink signal transmitted by the terminal according to the uplink transmission beam.

Optionally, the receiver is configured to:

and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, the second RS resource is associated with the second signal, and the receiver is configured to:

and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, the receiver is specifically configured to:

determining an uplink receiving beam commonly adopted by the first signal and the second signal according to the first RS resource corresponding to the first signal or the first RS resource corresponding to the second signal;

and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, if the time interval between the first signal and the second signal is smaller than a preset time interval, the receiver is configured to determine, according to the first RS resource corresponding to the first signal or the first RS resource corresponding to the second signal, an uplink receiving beam commonly used by the first signal and the second signal, specifically:

determining an uplink receiving beam commonly adopted by the first signal and the second signal according to a first RS resource corresponding to a signal with an earlier sending time in the first signal and the second signal; alternatively, the first and second electrodes may be,

and determining an uplink receiving beam commonly adopted by the first signal and the second signal according to a first RS resource corresponding to a signal of which the resource type is a preset resource type in the first signal and the second signal.

Optionally, if the time interval between the first signal and the second signal is greater than or equal to a preset time interval, the receiver is configured to:

determining an uplink receiving beam of the first signal according to a first RS resource corresponding to the first signal;

determining an uplink receiving beam of the second signal according to a first RS resource corresponding to the second signal;

and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, if a time interval between the first signal and the second signal is smaller than a preset time interval, the receiver is configured to:

determining an uplink receiving beam commonly adopted by the first signal and the second signal according to a third RS resource associated with the second RS resource;

and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, the receiver is configured to:

determining an uplink receiving beam commonly adopted by the first signal and the second signal according to a third RS resource associated with the second RS resource corresponding to the first signal, or,

determining an uplink receiving beam commonly adopted by the first signal and the second signal according to a third RS resource associated with the second RS resource corresponding to the second signal;

and receiving the uplink signal by adopting the uplink receiving beam.

determining an uplink receiving beam of the first signal according to a third RS resource associated with a second RS resource corresponding to the first signal;

determining an uplink receiving beam of the second signal according to a third RS resource associated with a second RS resource corresponding to the second signal;

and receiving the uplink signal by adopting the uplink receiving beam.

In a fifth aspect, an embodiment of the present invention provides a terminal, including:

the receiving module is used for receiving first indication information and/or second indication information sent by a base station; the first indication information is used for indicating at least one first RS resource selected by the base station in the configured multiple reference signal RS resources, and the second indication information is used for indicating the association relationship between the configured second RS resource and the third RS resource;

a determining module, configured to determine an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, where the second RS resource is a resource associated with at least one uplink signal;

and the sending module is used for adopting the uplink sending wave beam to transmit the uplink signal.

Optionally, the second RS resource is associated with the second signal, and the determining module is configured to: determining an uplink transmission beam of the first signal according to the first RS resource, and determining an uplink transmission beam of the second signal according to a third RS resource associated with the second RS; wherein a time interval between the first signal and the second signal is greater than or equal to a preset time interval.

Optionally, if the time interval between the first signal and the second signal is smaller than a preset time interval, the determining module determines the uplink transmission beam of the uplink signal according to the first indication information, and is specifically configured to:

Optionally, if the time interval between the first signal and the second signal is smaller than a preset time interval, the determining module is configured to determine an uplink transmission beam of an uplink signal according to the first indication information, specifically:

Optionally, the determining module is specifically configured to:

Optionally, the determining module is configured to: determining an uplink transmission beam of the first signal according to a first RS resource corresponding to the first signal, and determining an uplink transmission beam of the second signal according to a first RS resource corresponding to the second signal; wherein a time interval between the first signal and the second signal is greater than or equal to a preset time interval.

The determining module is configured to determine an uplink transmission beam of an uplink signal according to the second indication information, and specifically includes:

Optionally, if a second RS resource in one or more association relations indicated by the second indication information corresponds to the first signal, the second RS resource in one or more association relations indicated by the second indication information corresponds to the second signal, and the association relation is an association relation between the second RS resource and a third RS resource, the determining module is configured to determine an uplink transmission beam of the uplink signal according to the second indication information, specifically:

Optionally, the determining module is configured to determine an uplink transmission beam of an uplink signal according to the second indication information, and specifically includes:

In a sixth aspect, an embodiment of the present invention provides a base station, including:

a generating module, configured to generate first indication information for indicating at least one first RS resource selected by a base station in a plurality of configured RS resources, and/or second indication information for indicating an association relationship between a second RS resource and a third RS resource that are configured;

a sending module, configured to send the first indication information and/or the second indication information to the terminal, so that the terminal device determines an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, where the second RS resource is a resource associated with at least one uplink signal;

and the receiving module is used for receiving the uplink signal transmitted by the terminal according to the uplink transmitting beam.

The uplink signal includes a first signal and a second signal transmitted on the same time domain resource block, the first signal is a signal carried by an uplink channel or an uplink reference signal, the second signal is a signal carried by an uplink channel or an uplink reference signal, and the second signal is different from the first signal.

Optionally, the receiving module is configured to: determining an uplink receiving beam corresponding to an uplink transmitting beam of an uplink signal transmitted by the terminal; and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, if the second RS resource is associated with the second signal, the receiving module is configured to:

and determining an uplink receiving beam of the first signal according to the first RS resource, determining an uplink receiving beam of the second signal according to a third RS resource associated with the second RS, and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, the receiving module is specifically configured to:

and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, if the time interval between the first signal and the second signal is smaller than a preset time interval, the receiving module is configured to determine, according to the first RS resource corresponding to the first signal or the first RS resource corresponding to the second signal, an uplink receiving beam commonly used by the first signal and the second signal, specifically:

Optionally, if the time interval between the first signal and the second signal is greater than or equal to a preset time interval, the receiving module is configured to:

and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, if the time interval between the first signal and the second signal is smaller than a preset time interval, the receiving module is configured to:

and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, the receiving module is configured to:

and receiving the uplink signal by adopting the uplink receiving beam.

In a seventh aspect, an embodiment of the present invention provides a computer apparatus, where the computer apparatus includes a processor, and the processor is configured to implement the methods provided in the first and second aspects when executing a computer program stored in a memory.

In an eighth aspect, an embodiment of the present invention provides a computer apparatus, which includes a processor, and the processor is configured to implement the methods provided in the first and second aspects when executing a computer program stored in a memory.

In a sixth aspect, the present invention provides a computer-readable storage medium, which stores computer instructions, and when the instructions are executed on a computer, the instructions cause the computer to execute the methods provided in the first and second aspects.

In the embodiment of the present invention, a terminal receives first indication information and/or second indication information sent by a base station, because the first indication information can indicate at least one first RS resource selected by the base station from a plurality of configured RS resources, and the second indication information is used for indicating that a second RS resource in the plurality of RS resources is associated with a third RS resource, an uplink transmission beam can be determined according to the first indication information and/or the second indication information, and an uplink signal transmitted by using the uplink transmission beam can be determined, so that the uplink signal can be transmitted according to the uplink transmission beam, and a beam forming used for uplink signal transmission is a beam forming corresponding to the uplink transmission beam, thereby effectively improving the transmission performance of the system.

Drawings

FIG. 1 is a schematic diagram of a communication scenario provided in an embodiment of the present invention;

fig. 2 is a first flowchart of a beamforming method according to an embodiment of the present invention;

fig. 3 is a schematic diagram of uplink signals transmitted on the same time domain resource block in the embodiment of the present invention;

fig. 4 is a second flowchart of a beamforming method according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal in an embodiment of the present invention;

FIG. 6 is a diagram illustrating a base station according to an embodiment of the present invention;

fig. 7 is a block diagram of a terminal according to an embodiment of the present invention;

FIG. 8 is a block diagram of a base station according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a computer device according to an embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1, a schematic diagram of a possible communication scenario provided in the embodiment of the present invention is shown. As shown in fig. 1, a terminal accesses a wireless network through a Radio Access Network (RAN) node to acquire a service of an external network (e.g., the internet) through the wireless network or to communicate with other terminals through the wireless network.

Among them, a terminal is also called User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., and is a device providing voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, a vehicle-mounted device, etc. Currently, some examples of terminals are: a Mobile phone (Mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self), a wireless terminal in Remote surgery (Remote medical support), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in city (smart city), a wireless terminal in home (smart home), a User Equipment (User Equipment, UE), a wireless terminal device, a Mobile terminal device, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile Station), a Remote Station (Remote Station), a Mobile terminal (Mobile Station), a Remote control (Mobile Station), a wireless terminal in industrial control (industrial control), a wireless terminal in Remote control (self driving), a wireless terminal in Remote control (Remote control), a wireless terminal in transportation safety (transportation safety), a wireless terminal in city (smart home), a wireless terminal in a smart Station (smart home), a Mobile Station (Station), a Mobile Station (Mobile Station, a Mobile, An Access Point (AP), a Remote Terminal Device (Remote Terminal), an Access Terminal Device (Access Terminal), a User Terminal Device (User Terminal), a User Agent (User Agent), or a User Device (User Device).

The RAN is the part of the network that accesses the terminal to the wireless network. A RAN node (or device) is a node (or device) in a radio access network, which may also be referred to as a base station. Currently, some examples of RAN nodes are: a gbb, a Transmission Reception Point (TRP), an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved Node B, or home Node B, HNB), a Base Band Unit (BBU), or a wireless fidelity (Wifi) Access Point (AP), etc. In addition, in one network configuration, the RAN may include a Centralized Unit (CU) node and a Distributed Unit (DU) node. The embodiments of the present application are described with reference to a base station as an example. The base station may include an evolved Node B (NodeB or eNB or e-NodeB) in a Long Term Evolution (LTE) system or an evolved LTE system (LTE-Advanced, LTE-a), or may also include a next generation Node B (gNB) in a 5G system. In the embodiment of the present invention, the base station is mainly a gbb in a 5G system as an example. The communication architecture may be an access network architecture in a 5G system, an Evolution version of a Long Term Evolution (LTE) system, or other Orthogonal Frequency Division Multiplexing (OFDM) system or a Discrete Fourier Transform-Spread OFDM (DFT-S-OFDM) system.

The embodiment of the invention is described by taking a base station and a terminal as examples.

First, some terms in the embodiments of the present invention are explained so as to be easily understood by those skilled in the art.

(1) In the embodiments of the present application, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand the meaning.

(2) In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

(3) "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

(4) The uplink channel is used for carrying a channel of data transmitted from the terminal to the base station. In this embodiment of the present invention, the Uplink Channel may refer to a Physical Uplink Control Channel (PUCCH), a Physical Uplink Shared Channel (PUSCH), a Physical Random Access Channel (PRACH), and the like, which is not limited in this embodiment of the present invention.

(5) The uplink reference signal refers to a reference signal transmitted from a terminal to a base station. In practical applications, the uplink reference signal may be a reference signal used for uplink channel estimation, data demodulation and detection, uplink timing synchronization, and uplink channel quality measurement. In this embodiment of the present invention, the uplink Reference Signal may be an SRS (Sounding Reference Signal) in a 5G system, which may be used for estimating the uplink channel quality and selecting a channel to calculate the SINR of the uplink channel, or may be a Demodulation Reference Signal (DMRS), a positioning Reference Signal (TRS), a phase-Tracking Reference Signal (PTRS), and the like.

Then, a brief introduction is made to the existing beamforming manner.

Beamforming may be applied to a base station in a wireless communication system, and may also be applied to a terminal (e.g., UE). For uplink transmission from the UE to the base station, beamforming may be used either on the gbb side or on the UE side. In the embodiment of the present invention, the beamforming may be digital beamforming, analog beamforming, or digital-analog hybrid beamforming, which is not limited in the embodiment of the present invention. It should be noted that "beamforming" in the embodiment of the present invention may also be referred to as "precoding", "beam", and the like, and the scope of the present invention should not be limited by the name.

If the beam reciprocity of Uplink (UL)/Downlink (DL) is established at the UE side, the UE can derive its uplink transmission beam from the downlink reception beam, i.e. the UE can obtain the optimal uplink transmission beam by itself. In order for the UE to derive the uplink transmit beam, the UE needs to know the downlink signal used to estimate the downlink receive beam. The downlink signal(s) may be higher layer signaling and configured or dynamically indicated to the UE. The downlink Signal may be a channel state information-reference signals (CSI-RS) in a 5G system, an SSB (Synchronization Signal Block), or the like.

Of course, the UE may also transmit a set of uplink reference signals, and different uplink reference signals are transmitted using different transmit (Tx) beams, so that the gNB may perform uplink measurement using the uplink reference signals and select an optimal transmit beam. Note that this applies regardless of whether beam reciprocity between uplink and downlink of the UE is established. The gNB needs to configure a set of RS (reference signal) resources semi-statically first, the UE sends corresponding RSs according to the configuration of the gNB or a trigger signaling, and after receiving the RSs sent by the UE, the gNB sends an indication of the RS resources (such as resource serial numbers) inclined to the UE, so that the UE uses the sending beams of the RS resources inclined to the base station indicated by the gNB to ensure transmission performance. In the embodiment of the present invention, an uplink Reference signal is exemplified as an srs (sounding Reference signal) in a 5G system, and the present invention is also applicable to DMRS, TRS, PTRS, and the like.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

Fig. 2 is a flowchart of a beamforming method according to an embodiment of the present invention, where the method may be applied to the terminal, and a process of the beamforming method may be described as follows:

s11: receiving first indication information and/or second indication information sent by a base station; the first indication information is used for indicating at least one first RS resource selected by the base station in the configured multiple RS resources, and the second indication information is used for indicating the association relationship between the configured second RS resource and the third RS resource;

s12: determining an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information; wherein the second RS resource is a resource associated with at least one uplink signal;

s13: and transmitting the uplink signal according to the uplink transmitting beam.

In the embodiment of the invention, the uplink signal comprises a first signal and a second signal on the same time domain resource block. The time domain resource block refers to a time period, such as a slot, a symbol or multiple slots/symbols. The time period corresponding to the time domain resource block may be predetermined by the base station and the terminal, or indicated by the base station to the terminal, or determined by the terminal. For example, the terminal is determined according to its own capability (e.g., capability of beam switching, capability of data processing, or the like).

The first signal in the uplink signals may be a signal carried by an uplink channel or an uplink reference signal, and the second signal may also be a signal carried by an uplink channel or an uplink reference signal, and the first signal is different from the second signal. For example, the first signal is a signal carried by an uplink channel, and the second signal is an uplink reference signal; or the second signal is a signal carried by an uplink channel, and the first signal is an uplink reference signal; or the first signal is an uplink reference signal, the second signal is also an uplink reference signal, and the first signal and the second signal are different uplink reference signals, or the first signal is a signal carried by an uplink channel (such as PUSCH), and the second signal is also a signal carried by an uplink channel (such as PUSCH), but the first signal and the second signal are different signals carried by uplink channels (such as different PUSCHs). In the embodiment of the present invention, the first signal is mainly a signal carried by an uplink channel (e.g., PUSCH), and the second signal is an uplink reference signal (e.g., SRS). When the first signal or the second signal is a signal carried by an uplink channel, the signal is sometimes directly referred to as a PUSCH, which should not be construed as limiting the scope of the present invention.

In this embodiment of the present invention, the first indication information may be an indication of RS resources whose selection (tendency) is indicated by the gNB. In the embodiment of the present invention, the first indication information is an SRI (sounding reference resource indicator) as an example for explanation. It should be noted that, the SRI in the embodiment of the present invention may also be expressed as an indication pointing to other types of RS resources, for example, an indication indicating a downlink reference Signal or an uplink reference Signal, a CSI-RS (Channel State Information, downlink Channel State Information measurement pilot), an SSB (Synchronization Signal Block), and the like.

In practical applications, the base station may configure a plurality of RS resources for the terminal, and perform resource indication from the RS resources through the SRI, that is, indicate RS resources that the base station tends to. Then, the terminal can obtain the sending beam corresponding to the uplink transmission according to the SRI sent by the base station, i.e. according to the RS resource indicated by the SRI.

For example, if the RS resource indicated by the SRI is an uplink RS, the terminal may use the same transmission beam for uplink transmission; and if the RS resource is a downlink RS, the terminal determines a transmitting beam corresponding to uplink transmission through a receiving beam of the terminal. Here, the uplink transmission may be PUSCH, PUCCH, SRS, or the like.

In this embodiment of the present invention, the SRI may be configured (or indicated) by the base station through a UL grant for the PUSCH, or a UL grant or a DL grant for the a-SRS, or a UL grant for the PUSCH and the a-SRS (if both triggers are in the same UL grant), where the UL/DL grant may refer to Downlink Control Information (DCI) for the UL/DC grant.

In practice, the base station configures a set of reference signal resources, such as SRS, CSI-RS, SSB, etc., for the terminal, and the gNB indicates the selected reference signal resource through the first indication information (SRI), so that the terminal obtains an uplink transmission beam by using the selected reference signal resource. That is, the indication state of one SRI may represent one or more RS resources, the RS resources indicated by the indication state of the SRI may be semi-statically configured or pre-agreed by the base station and the terminal, and the values of the indication states of different SRIs represent the indicated different RS resources. In practical application, the bit width of the SRI and the RS resource corresponding to each SRI indication state may be stored in advance in the base station and the terminal.

The second indication information may be used to indicate an association relationship between the RS resources configured by the base station, for example, to indicate that the second RS resource and the third RS resource configured by the base station for the UE have an association relationship, where the association relationship includes a spatial association relationship, such as an association relationship between transmission and/or reception beams, an association relationship between time frequencies, and the like. For example, assuming that the base station indicates that the second RS resource configured for the UE by the base station and the third RS resource have an association relationship, the transmission beam of the second RS resource may be obtained according to the third RS resource. In the embodiment of the present invention, the third RS resource may be referred to as a source RS resource of a second RS resource configured by the base station for the terminal, the second RS resource may be referred to as a target RS resource of the third RS resource, and a transmission beam of the target RS resource may be obtained according to the source RS resource.

For example, the third RS resource may be a downlink RS resource (e.g., CSI-RS resource, SSB, etc.), the second RS resource may be an uplink RS resource (e.g., SRS resource, DMRS port, etc.), and the association relationship between the third RS resource and the second RS resource is as follows: the uplink transmission beam of the second RS resource can be obtained according to the reception beam of the third RS resource (for example, the uplink transmission beam of the second RS resource is a downlink reception beam of the third RS resource). For another example, the third RS resource is an uplink RS resource (e.g., SRS resource, DMRS port, etc.), the second RS resource is an uplink RS resource (e.g., SRS resource, DMRS port, etc.), and the association relationship between the third RS resource and the second RS resource is as follows: the uplink transmission beam of the second RS resource can be obtained according to the uplink transmission beam of the third RS resource (for example, the second RS resource uses the same uplink transmission beam as the third RS resource). For another example, the third RS resource may be an uplink channel (e.g., a physical random access channel PRACH used for beam management), the second RS resource may be an uplink RS resource (e.g., an SRS resource, a DMRS port, and the like), and an association relationship between the third RS resource and the second RS resource is: the uplink transmission beam of the second RS resource can be obtained according to the uplink transmission beam of the third RS resource (for example, the second RS resource uses the same uplink transmission beam as the third RS resource).

In practical applications, a specific indication manner of the second indication information may be indication information of an RS resource associated with the target RS resource, and it is assumed that both the target RS resource and the source RS resource are SRS resources. The base station configures a target SRS resource and a source SRS resource associated with the target SRS resource for the terminal, and the second indication information is identification information of the source SRS resource. Then, the terminal may determine, according to the source SRS resource, a transmission beam of SRS transmission corresponding to the target SRS resource in the uplink signal.

It should be noted that, although the terminal can specify the uplink transmission beam corresponding to the target RS resource and the uplink transmission beam of the uplink signal associated with the target RS resource from the source RS resource, the terminal does not necessarily use the uplink transmission beam as the uplink transmission beam of the uplink signal associated with the target RS resource. This will be explained in detail later in this embodiment.

In practical applications, the second indication information may also be configuration information indicating an association relationship between the target RS resource and the source RS resource. The second indication information may be semi-static configuration information such as RRC signaling, or the second indication information may also be dynamic signaling indication information. For example, the second indication information is indication information carried by a certain trigger signaling.

In this embodiment of the present invention, taking the second RS resource as an example of a target RS resource, the second RS resource is associated with at least one of the first signal and the second signal included in the upload information. That is, the second RS resource has a certain association relationship with at least one of the first signal and the second signal included in the upload information. In the embodiment of the present invention, the second RS resource is associated with the second signal.

Specifically, the association of the second RS resource with the second signal as referred to herein can include the following two meanings:

(1) the second RS resource corresponds to the RS resource. For example, if the second signal is an SRS, the second RS resource is an SRS resource configured by the base station corresponding to the second signal, and the second signal is an SRS corresponding to the second RS resource. That is, the second RS resource is associated with the third RS resource, and the second RS resource is associated with the second signal includes the following cases: the second signal is a transmission signal corresponding to the second RS resource, and the second signal is associated with the third RS resource. The terminal may obtain an uplink transmission beam of the second signal according to the transmission beam or the reception beam of the third RS resource.

(2) The second RS resource is a reference signal corresponding to the second signal. For example, the second RS resource is a DMRS corresponding to the second signal. For another example, the second signal is a PUSCH, and the second RS resource is an SRS corresponding to the second signal.

In practical applications, the uplink transmission beam determined based on the RS resource indicated by the SRI (first indication information) may be used for an UL signal, such as SRS, or the uplink transmission beam determined based on the RS resource indicated by the SRI may also be used for an uplink channel, such as PUSCH or PUCCH. The embodiments of the present invention mainly use an uplink signal including a first signal and a second signal as an example for explanation, where the first signal uses a PUSCH as an example, and the second signal uses an SRS as an example. In the following description of the specific solution, the embodiment of the present invention is described by taking the second RS resource as a target RS resource and as an SRS resource, and taking the third RS resource as a source RS resource and also as an SRS resource. It should be noted that the method in the embodiment of the present invention is also applicable to the case where the uplink signal includes more than two signals.

The uplink transmission beam determined for the RS resource based on the SRI indication is used for the second signal SRS.

The SRS resources configured by the base station to the terminal may be divided into various types from the perspective of time domain transmission behavior: periodic SRS, aperiodic SRS and semi-persistent SRS. For periodic SRS (P-SRS) and semi-persistent SRS (SP-SRS), which are transmitted in time according to a periodic pattern (periodic pattern), a time pattern contains a specific period and a specific time offset. For aperiodic SRS (AP-SRS) or a-SRS, which may be triggered dynamically by a dynamic signal at any time instead of following a specific periodic transmission pattern, a trigger signaling may trigger SRS transmission at one or more time points within a specific time window, and the trigger signaling may be carried in control information (e.g. downlink control information DCI) of an uplink grant (UL grant) or a downlink grant (DL grant).

The UL transmission beam of one target SRS resource may be determined by an indication of another source SRS resource, and the terminal may assume that the target SRS resource may use the same uplink transmission beam as the source SRS resource. The following are examples of some possible temporal types of [ source, target ] SRS:

1. the source SRS resource may be configured and/or activated/deactivated by RRC and/or MAC signaling.

2. [ P/SP, AP ]: the source SRS resource of one AP-SRS may be configured by higher layer signaling or dynamically triggered by grant (e.g., DCI signaling) for AP SRS triggering.

3. [ AP, AP ]: the source SRS resource of one AP-SRS may be configured by higher layer signaling or dynamically triggered by grant (e.g., DCI signaling) for AP SRS triggering.

4. [ AP, P/SP ]: the uplink transmission beam of the target SRS may be dynamically changed based on the dynamic triggering of the source AP-SRS. The relationship between the transmission time instant of the AP-SRS (e.g., in slot (slot) n1, slot n1) and the starting time instant at which the transmission beam of the AP-SRS is applied to the target SRS resource (slot n2) needs to be defined in advance. E.g., fixed, or via configuration messages for higher layer signaling of the target SRS and/or the source SRS, or via dynamic indications (which may be a separate signal or the same signal as the dynamic signal triggering the AP-SRS).

The first indication information may be semi-statically configured (if SRI is taken as an example, the value of SRI is semi-statically configured), or dynamically indicated. For a typical PUSCH transmission dynamically triggered by a UL grant, both of the above two approaches are applicable. For future PUSCH transmissions, such as a machine-type communication, IoT, grant-free PUSCH, etc., it is more likely that uplink transmission beams are semi-statically configured. The present text is explained with a dynamic PUSCH transmission as an example. It should be noted that the present invention is also applicable or extendable to semi-static configuration or other PUSCH transmission.

Of course, the method of the present invention can also be applied to or extended for other uplink reference signals and uplink channels.

In S12, the terminal determines the uplink transmission beam of the uplink signal according to the first indication information and/or the second indication information, which may include multiple technical solutions, and the following are separately described:

in the first mode, the terminal determines the uplink transmission beam of the uplink signal only according to the first indication information (SRI), that is, the terminal may determine the uplink transmission beam according to the RS resource indicated by the SRI.

According to the difference of the number of RS resources indicated by the first indication information configured by the base station, for example, 1 or 2. Therefore, when the terminal determines the uplink transmission beam in the first mode, the following situations may be included:

first indication information indicates a first RS resource.

In the first mode, the terminal uses the transmission beam determined according to the one RS resource indicated by the first indication information as an uplink transmission beam of the uplink signal, and the first signal and the second signal in the uplink signal use a common uplink transmission beam.

For example, the transmission beams of the RS resources that the terminal will indicate through the SRI are used for the beams of the PUSCH and the SRS, respectively.

The one or more first RS resources indicated by the first indication information correspond to the first signal, and the one or more first RS resources indicated by the first indication information correspond to the second signal. That is, the base station indicates that there are 2 uplink transmission beams by the first indication information, and indicates the uplink transmission beams of the respective signals by two independent first indication information.

In the first method, the terminal may specifically determine the uplink transmission beam according to the first RS resource corresponding to the first signal or the first RS resource corresponding to the second signal, where the first signal and the second signal use a common uplink transmission beam.

For example, the terminal determines an uplink transmission beam of an uplink signal according to a first RS resource corresponding to a PUSCH (first signal). Alternatively, the terminal may determine an uplink transmission beam of the uplink signal from the first RS resource corresponding to the SRS (second signal). The determined uplink transmission beam is an uplink transmission beam commonly used by the first signal and the second signal.

In practical applications, when the terminal determines an uplink beam determined by the first RS resource corresponding to the first signal or the second signal as a commonly used uplink transmission beam, the terminal may implement the following method, but is not limited to the following method:

(i) and determining the commonly adopted uplink transmission beam according to the (first) RS resource corresponding to the signal with the earlier transmission time in the uplink signal.

That is, the terminal may determine a signal with an earlier transmission time from among the first signal and the second signal, and use the uplink transmission beam determined according to the first RS resource corresponding to the signal with the earlier transmission time as the uplink transmission beam commonly used by the first signal and the second signal.

For example, for a first signal PUSCH and a second signal SRS on the same time domain resource block, the terminal acquires transmission times corresponding to the two signals, and if it is determined that the transmission time of the PUSCH is earlier than the SRS, the terminal uses a transmission beam of the PUSCH (for example, a beam determined by indicating the first RS resource through first indication information (SRI)) as an uplink transmission beam commonly used by the PUSCH and the SRS.

(ii) And determining the commonly adopted uplink transmission beam according to the (first) RS resource corresponding to the signal with the preset resource type in the uplink signal.

From the resource type, the SRS may be an SRS for UL CSI acquisition, or an SRS for beamforming. In the embodiment of the present invention, a signal of a preset resource type may refer to a uplink reference signal acquired by UL CSI, for example.

If the terminal determines that the SRS of the second signal included in the uplink signal is the SRS acquired by the UL CSI, the terminal may use the uplink transmission beam determined by the first RS resource corresponding to the second signal as the uplink transmission beam commonly used. For example, the transmission beam indicating the first indication information SRI to the SRS is used as the beam for the PUSCH and the SRS.

Furthermore, it should be noted that, if it is determined in (ii) that the uplink signal does not have a signal of a preset resource type, for example, the second signal is determined to be an SRS for beamforming, the terminal may determine to transmit the first signal and the second signal using different transmission beams.

In another embodiment of the present invention, if it is determined that the first signal and the second signal use different uplink transmission beams, the terminal may determine, according to the first indication information, the uplink transmission beams corresponding to the signals, respectively.

At this time, the terminal may determine the uplink transmission beam of the first signal according to the first RS resource corresponding to the first signal, and determine the uplink transmission beam of the second signal according to the first RS resource corresponding to the second signal, that is, determine the two indicated uplink transmission beams.

Wherein, if two uplink transmission beams are respectively indicated by the base station through two independent SRIs, the two SRIs may be transmitted in the same UL grant, or in two independent UL grants (one for PUSCH and one for AP-SRS triggering), or one UL grant (for PUSCH) and one DL grant (for AP-SRS triggering).

Or, if two uplink transmission beams are indicated by the base station through a jointly coded SRI signaling field. For example, the status indication of one SRI signaling domain includes two SRI values, one for PUSCH and one for a-SRS, as shown in table 1:

state indication of SRI signal domains	SRI indicating PUSCH Beam	Indicating SRI of SRS beam
			1	RS resource#a1	RS resource#b1
2	RS resource#a2	RS resource#b2
			……	……	……
N	RS resource#aN	RS resource#bN

TABLE 1

Wherein, the RS resource # x represents the RS resource with resource number x, and the different states of the SRI represent the combination of different RS resource numbers. any two values of a1-aN may be the same or different, and similarly, any two values of b1-bN may be the same or different. In this manner, the state indication of the SRI signal domain may be as shown in table 2.

State indication of SRI signal domains	SRI indicating PUSCH Beam	Indicating SRI of SRS beam
			1	RS resource#0	RS resource#1
2	RS resource#0	RS resource#0
			3	RS resource#1	RS resource#0
4	RS resource#1	RS resource#1

TABLE 2

In practical applications, ax and bx may be different values, as shown in table 3.

State indication of SRI signal domains	SRI indicating PUSCH Beam	Indicating SRI of SRS beam
			1	RS resource#0	RS resource#1
2	RS resource#1	RS resource#0

TABLE 3

In table 3, different status indications of the signal field indicate that the indicated RS resources corresponding to the uplink signal are different, i.e., the PUSCH and SRS employ different uplink transmission beams. The terminal may determine an uplink transmission beam for PUSCH and SRS beamforming using two transmission beams determined according to the first RS resource indicated by the first indication information.

For example, the terminal uses a transmission beam determined from the first RS resource corresponding to the PUSCH for beamforming of the PUSCH, and uses a transmission beam determined from the first RS resource corresponding to the SRS for beamforming of the SRS.

Alternatively, the terminal uses a transmission beam corresponding to one preset signal (e.g., the first signal or the second signal) in the uplink signals as an uplink transmission beam commonly used by the PUSCH and the SRS, for example, an uplink beam determined according to an RS resource corresponding to the PUSCH is always used as an uplink transmission beam commonly used by the PUSCH and the SRS.

Still alternatively, the terminal may use a transmission beam for transmitting a signal earlier in time as an uplink transmission beam commonly used for the first signal and the second signal, or use a transmission beam for a signal having a preset resource type as an uplink transmission beam commonly used for the first signal and the second signal, and so on.

And in the second mode, the terminal determines the uplink transmission beam of the uplink signal only according to the second indication information, namely determines the transmission beam of the uplink signal according to the incidence relation between the second RS resource and the third RS resource indicated by the second indication information.

According to the number of the association relations indicated by the second indication information, when the terminal determines the uplink transmission beam in the second mode, the following cases can be adopted:

the second indication information indicates an association relationship, that is, a third RS resource associated with a configured second RS resource.

Then, the terminal may determine an uplink transmission beam of the uplink signal according to the third RS resource associated with the second RS resource, and may further use the uplink transmission beam for transmission of the first signal and the second signal.

Second RS resources in the one or more incidence relations indicated by the second indication information correspond to the first signal, and the second RS resources in the one or more incidence relations indicated by the second indication information correspond to the second signal.

And the association relationship is the association relationship between the second RS resource and the third RS resource. In practical applications, one association relationship may be an association relationship between one RS resource and another RS resource (or referred to as a third RS resource), that is, the terminal may determine (associate) a transmission or reception beam of another RS resource according to the transmission or reception beam of one RS resource. Of course, an association relationship may also refer to an association relationship between multiple RS resources and the same RS resource (i.e., a third RS resource), and the terminal may obtain the transmission or reception beams of all other associated second RS resources according to the transmission or reception beam of the third RS resource.

On one hand, if it is determined that the first signal and the second signal use respective uplink transmission beams, the terminal may determine, according to the two transmission beams indicated by the second indication information, an uplink transmission beam of the first signal according to a third RS resource associated with the second RS resource corresponding to the first signal, and determine an uplink transmission beam of the second signal according to a third RS resource associated with the second RS resource corresponding to the second signal. (two signals use different beams)

For example, the terminal determines an RS resource associated with an RS resource corresponding to the PUSCH according to the first association indicated by the second indication information, and determines an uplink transmission beam of the PUSCH according to the associated RS resource; meanwhile, the terminal also determines the RS resource associated with the RS resource corresponding to the SRS according to the second association relation indicated by the second indication information, and determines the uplink transmission beam of the SRS according to the associated RS resource, so that the PUSCH and the SRS adopt the respective corresponding uplink transmission beam.

On the other hand, if it is determined that the first signal and the second signal employ the common uplink transmission beam, the terminal may determine that the RS resource corresponding to the signal with the earlier transmission time of the two signals determines the common uplink transmission beam. For example, if it is determined that the transmission time of the SRS is earlier than the transmission time of the PUSCH, the terminal may use a transmission beam corresponding to the SRS (e.g., a beam determined by the associated RS resource) as an uplink transmission beam commonly employed by the PUSCH and the SRS. (both signals use a common beam)

And in the third mode, the terminal determines the uplink transmission beam of the uplink signal according to the first indication information (SRI) and the second indication information (RS resource association information), wherein the second RS resource is associated with the second signal.

In this manner, the terminal determines a first uplink transmission beam according to the first RS resource indicated by the first indication information, and determines a second uplink transmission beam according to a third RS resource associated with the second RS resource indicated by the second indication information, that is, determines uplink transmission beams for beamforming a first signal and a second signal in the uplink signals, respectively. Further, the terminal may use the first uplink transmission beam as an uplink transmission beam for a first signal (e.g., PUSCH) and the second uplink transmission beam as an uplink transmission beam for a second signal (e.g., SRS). For example, the terminal uses a transmission beam determined according to the first RS resource indicated by the first indication information SRI for PUSCH and uses a beam of the associated third RS resource indicated by the second indication information for SRS.

As can be seen from the foregoing description, the terminal may transmit the first signal and the second signal by using a common uplink transmission beam, for example, the first signal and the second signal both use a transmission beam determined according to the first indication information; alternatively, the terminal may also use different uplink transmission beams for the first signal and the second signal, for example, the first signal uses a first uplink transmission beam determined by the first indication information, the second signal uses a second transmission beam determined according to the second indication information, and so on. However, generally, if the first signal and the second signal use uplink transmission beams corresponding to each other, it is necessary to consider a time for the terminal to perform beam switching. Generally speaking, if a time interval between a first signal and a second signal located on the same time domain resource block is large, it can be considered that the terminal can be guaranteed to perform beam switching on a transmission beam of the signal in the time interval. Therefore, in this embodiment of the present invention, at the same time or before S12, the terminal may further determine whether the first signal and the second signal use the common uplink transmission beam through a corresponding determination.

Specifically, at the same time or before S12, the terminal may determine a time interval between the first signal and the second signal and determine whether the time interval is less than a preset time interval.

Wherein the time interval may be fixed, or semi-statically indicated or configured, or dynamically indicated. The terminal may or may not report the capability regarding the time interval threshold. In one implementation, the time interval may be a time interval of two signal initial transmission times. In another implementation, the time interval may be the time interval from the end of transmission of one signal to the beginning of transmission of another signal. For example, the PUSCH is a signal with an early transmission time, the SRS is a signal with a late transmission time, and the time interval is a time interval between a symbol corresponding to the end of PUSCH transmission and a symbol corresponding to SRS transmission. The present invention does not limit the time interval. When the transmission time and the end time of the first signal and the second signal are the same, we can consider that their time interval is 0.

The preset time interval may be set according to the processing capability of the terminal, and the terminal may complete the beam switching within the time according to the processing capability of the terminal itself. In practical application, for a terminal with stronger processing capability, the beam can be switched rapidly, that is, the beam switching can be completed in a shorter time, and the set preset time interval can be smaller. For a terminal with weak processing capability, which may need longer time to perform beam switching, the preset time interval may be set to be larger. The specific value of the preset time interval may be set by a person skilled in the art according to practical situations, and the embodiment of the present invention is not limited in this respect.

And if the terminal determines that the time interval between the first signal and the second signal is less than the preset time interval, determining that the first signal and the second signal adopt a common uplink transmission beam. If it is determined that the time interval between the first signal and the second signal is greater than or equal to the preset time interval, which indicates that there is sufficient time to perform beam switching on the transmission beam of the uplink signal, it is determined that the first signal and the second signal may adopt the uplink transmission beam determined according to the respective corresponding RS resource, that is, the uplink transmission beams for the first signal and the second signal may be respectively determined according to the aforementioned corresponding manner.

Therefore, in the embodiment of the present invention, the terminal determines to use two different uplink transmission beams to transmit the PUSCH and the SRS through the judgment of the time interval between the uplink channel and the uplink reference signal and under the condition of a larger time interval, that is, the terminal uses a beam corresponding to the uplink signal itself, otherwise, the terminal uses a common transmission beam to transmit the PUSCH and the SRS, so that the accuracy of the determination for the uplink signal beam forming is improved.

Further, in the embodiment of the present invention, while determining the uplink transmission beam of the uplink signal by using the foregoing first to third manners, the terminal may also determine the uplink transmission beam by combining the cycle type of the uplink reference signal (for example, the second signal SRS), which is described below according to the cycle type of the SRS.

I) The second signal is a periodic or semi-persistent SRS (i.e., P/SP SRS), and the terminal transmits the PUSCH and the P/SP SRS on the same time domain resource block.

The terminal may determine a beam for the PUSCH according to the SRI and use the determined beam as an uplink transmission beam for the PUSCH and the P/SP SRS.

Optionally, the terminal may also determine the uplink transmission beam of each signal in the uplink signal in combination with the preset condition (e.g., time interval). When the time interval is smaller than the threshold, determining that the first signal and the second signal use the same transmission beam for transmission; and when the time interval is greater than or equal to the threshold, determining that the first signal and the second signal are transmitted by using different transmission beams.

For example, fig. 3 shows PUSCH and SRS transmitted on the same time domain resource block, where the SRS is P/SP-SRS, and the preset threshold may be denoted by thr (symbol). Wherein, the starting time of PUSCH transmission is symbol t0, the starting time of SRS transmission is symbol t2, and if t2-t0> Thr, the PUSCH and P/SP-SRS use the same beam. Alternatively, if the starting time of PUSCH transmission is symbol t0, the ending time is symbol t1, the starting time of SRS transmission is symbol t2, and t2-t1> Thr, the PUSCH and the P/SP-SRS use the same beam.

Alternatively, if the transmission time interval of the PUSCH and the P/SP-SRS is smaller than the threshold, the terminal may use the beam indicated by the SRI as the uplink transmission beam of the PUSCH and use the uplink transmission beam configured to the SRS (e.g., indicated by the source RS) as the transmission beam of the SRS.

II) the second signal is aperiodic SRS (namely AP-SRS), and the terminal transmits PUSCH and AP-SRS on the same time domain resource block.

In this case, the terminal may perform processing according to the number of uplink transmission beams corresponding to the RS resource indicated by the first indication information.

For example, if the RS resource indicated by the first indication information corresponds to one uplink transmission beam, for example, if the SRI indicates one RS resource, the terminal may use the beam of the RS resource indicated by the SRI as the transmission beam of the PUSCH and the AP-SRS (i.e., in the case of the first manner described above). Alternatively, the terminal may use the beam determined by the SRI as the transmission beam for the PUSCH and use the determined beam for the AP-SRS, where the beam for the AP-SRS may be a beam determined according to the corresponding SRS/CSI-RS/SSB.

Or, if the first indication information received by the terminal indicates two uplink transmission beams, for example, two independent SRIs are respectively used to indicate an RS resource corresponding to a PUSCH and an RS resource corresponding to an SRS, the terminal may be implemented in the manner described in the foregoing manner one, and please refer to the foregoing related contents for the specific process, which is not described herein again.

After determining the uplink transmission beam, the terminal may transmit the uplink signal according to the determined uplink transmission beam, that is, the beam forming used for the uplink signal transmission is the beam forming corresponding to the uplink transmission beam. The base station side prestores uplink receiving beams corresponding to the uplink transmitting beams, and the base station can adopt the corresponding uplink receiving beams to receive uplink signals transmitted by the terminal, so that the transmission performance of the system is improved.

Example two

Fig. 4 is a beamforming method according to an embodiment of the present invention, which can be applied to the foregoing base station, such as a gNB, and the process of the method can be described as follows:

s21: generating first indication information for indicating at least one first RS resource selected by the base station in the configured plurality of RS resources and/or second indication information for indicating an association relation between the configured second RS resource and a third RS resource;

s22: sending the first indication information and/or the second indication information to a terminal so that the terminal equipment determines an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, wherein the second RS resource is a resource associated with at least one uplink signal;

s23: and receiving the uplink signal transmitted by the terminal according to the uplink transmission beam.

In this embodiment of the present invention, the first indication information may be an SRI. In practical applications, the base station may configure a plurality of RS resources for the terminal, and perform resource indication from the RS resources through the SRI, that is, indicate a trend RS resource. Then, the terminal can obtain the sending beam corresponding to the uplink transmission according to the SRI sent by the base station, i.e. according to the RS resource indicated by the SRI.

In practical applications, the base station may pre-configure a set of reference signal resources, such as SRS, CSI-RS, SSB, etc., which may all be used by the gNB to indicate or configure SRI to determine the uplink transmission beam. The indication state of one SRI may represent one or more RS resources, wherein the indication state of the SRI may correspond to a corresponding RS resource number, the value of the indication state of the SRI may be semi-statically configured, and the value of the indication state of different SRIs represents different indicated RS resources. In practical application, the bit width of the SRI and the RS resource corresponding to each SRI indication state may be stored in advance in the base station and the terminal.

Optionally, when the base station generates the first indication information, the base station may further configure the number of transmission beams indicated by the first indication information, where the number of transmission beams is related to the number of the first RS resources. Generally, one RS resource indication corresponds to one transmission beam.

In the embodiment of the present invention, when the transmission beam indicated by the first indication information configured by the base station is two transmission beams, the base station may further indicate the two transmission beams. For example, it is indicated that both of the two transmission beams are beams determined by the first indication information indication, as determined by the two SRIs; alternatively, the two transmission wave velocities are indicated as a beam indicated to a first signal in the uplink signal (e.g., a beam for an uplink channel such as PUSCH) and a beam indicated to a second signal in the uplink signal (e.g., a beam for uplink reference information such as SRS). The corresponding relationship between the first indication information and the first signal and/or the second signal may be predetermined by the base station and the terminal, or may be indicated to the terminal by the base station through signaling. For example, the base station configures the corresponding relationship between the first indication information and the first signal and/or the second signal for the terminal through RRC signaling. For another example, the base station configures a set of corresponding relationships between the first indication information and the first signal and/or the second signal for the terminal through RRC signaling, and indicates one of the corresponding relationships to the terminal through DCI signaling. Of course, the indication may also be made by MAC signaling or other signaling.

The upload information includes a first signal and a second signal transmitted on the same time domain resource block. The time domain resource block refers to a time period, such as a slot, a symbol or multiple slots/symbols. The time period corresponding to the time domain resource block may be predetermined by the base station and the terminal, or indicated by the base station to the terminal, or determined by the terminal. For example, the terminal is determined according to its own capability (e.g., capability of beam switching, capability of data processing, or the like). The first signal may be a signal carried by an uplink channel or an uplink reference signal, the second signal may also be a signal carried by an uplink channel or an uplink reference signal, and the first signal is different from the second signal. For example, the first signal is a signal carried by an uplink channel, the second signal is an uplink reference signal, or the second signal is a signal carried by the uplink channel, the first signal is an uplink reference signal, or the first signal is an uplink reference signal, the second signal is also an uplink reference signal, the first signal and the second signal are different uplink reference signals, or the first signal is a signal carried by an uplink channel (e.g., PUSCH), the second signal is also a signal carried by an uplink channel (e.g., PUSCH), but the first signal and the second signal are signals carried by different uplink channels (e.g., different PUSCHs). In the embodiment of the present invention, the first signal is mainly a signal carried by an uplink channel (e.g., PUSCH), and the second signal is an uplink reference signal (e.g., SRS).

In this embodiment of the present invention, the first indication information generated by the base station may indicate multiple first RS resources, for example, indicate two RS resources, and then one or more first RS resources indicated by the first indication information correspond to the first signal, and one or more first RS resources indicated by the first indication information correspond to the second signal.

In another embodiment of the present invention, the second indication information generated by the base station may respectively indicate an association relationship between two second RS resources, that is, a second RS resource in one or more association relationships indicated by the second indication information corresponds to the first signal, the second RS resource in one or more association relationships indicated by the second indication information corresponds to the second signal, and the association relationship is an association relationship between the second RS resource and a third RS resource.

In practical applications, one association relationship may be an association relationship between one RS resource and another RS resource, that is, a transmission beam or a reception beam of another RS resource may be obtained according to a transmission beam or a reception beam of one RS resource. Even more, one association relationship may also be an association relationship between multiple RS resources and the same RS resource, that is, the transmit or receive beams of all other RS resources associated with the RS resource may be obtained according to the transmit or receive beams of the RS resource.

In practical applications, the base station may be an uplink transmission beam of an uplink channel configured semi-statically or indicated dynamically. For example, taking SRI as an example, the value of SRI may be semi-statically configured, i.e., semi-statically configured for PUSCH transmission. Alternatively, the base station may also dynamically trigger PUSCH transmission through DCI signaling for UL/DL grant.

In this embodiment of the present invention, the second indication information may be used to indicate the association between the RS resources configured by the base station, for example, to indicate that the second RS resource and the third RS resource configured by the base station for the UE have an association relationship, where the association relationship includes a spatial association relationship, such as an association relationship between transmission and/or reception beams, an association relationship between time-frequency timings, and the like. For example, assuming that the base station indicates that the second RS resource configured for the UE by the base station and the third RS resource have an association relationship, the transmission beam of the second RS resource may be obtained according to the third RS resource. That is to say, the third RS resource is a source RS resource configured by the base station for the second RS resource, that is, the second RS resource is a target RS resource, and a transmission beam of the target RS resource can be obtained according to the source RS resource. For the related process of acquiring the transmission beam, please refer to the description in the first embodiment, which is not described herein again.

In practical applications, the second indication information may be semi-static configuration information such as RRC signaling. Or may be dynamic signaling indication information. For example, the second indication information is indication information carried by a certain trigger signaling.

In this embodiment of the present invention, taking the second RS resource as an example of a target RS resource, the second RS resource is associated with at least one of the first signal and the second signal included in the upload information.

In S22, the base station may transmit the first indication information and/or the second indication information through DCI signaling for the UL/DL grant. For example, when the UE is configured with two transmission beams for PUSCH and SRS, respectively, the two transmission beams may pass through two independent SRI information. For example, two SRI information may be transmitted in the same UL grant, or in two separate UL grants (one for PUSCH and one for AP-SRS triggering), or in a UL grant for PUSCH and a DL grant for AP-SRS triggering, respectively. Alternatively, the two transmit beams may be indicated by one jointly coded SRI signaling domain, i.e. the status of one SRI signaling domain indicates two SRI values, one for PUSCH and one for AP-SRS. For concrete indication examples, please refer to the related description above, and details are not repeated here.

Then, after receiving the first indication information and the second indication information, the terminal may determine an uplink transmission beam of the uplink signal according to the first indication information and/or the second indication information, and transmit corresponding uplink information according to the uplink transmission beam. For the process of determining the uplink transmission beam, please refer to relevant contents in the first embodiment, which is not described herein again.

Further, the base station may receive an uplink signal transmitted by the terminal according to the determined uplink transmission beam. In actual use, since the base station stores the uplink reception beam corresponding to the uplink transmission beam in advance, the base station can receive the uplink signal transmitted by the terminal using the corresponding uplink reception beam in S23.

Therefore, before receiving the uplink signal, the base station may determine the corresponding uplink receiving beam according to the manner of determining the uplink transmitting beam adopted by the terminal.

If the base station determines that the terminal determines the uplink transmission beam through the SRI, the base station may determine the corresponding uplink reception beam according to the uplink transmission beam of the RS resource indicated by the SRI. For example, the base station may determine an uplink receive beam of the first signal PUSCH from the first RS resource and an uplink receive beam of the second signal SRS from the third RS resource associated with the second RS.

Further, the base station may receive a corresponding uplink signal using the determined uplink reception beam. The method comprises the following specific steps:

if the terminal transmits the first signal and the second signal using the same uplink transmission beam, the base station may receive the uplink signal using the uplink reception beam corresponding to the uplink transmission beam. For example, when the terminal transmits PUSCH-carried information and SRS using the same uplink transmission beam, the base station receives PUSCH-carried information and SRS using an uplink reception beam corresponding to the uplink transmission beam.

Alternatively, if the terminal transmits the first signal using the first uplink transmission beam and transmits the second signal using the second uplink transmission beam, the base station needs to determine a first uplink reception beam corresponding to the first uplink transmission beam and a second uplink reception beam corresponding to the second uplink transmission beam, respectively, and then receive the first signal using the first uplink reception beam and receive the second signal using the second uplink reception beam.

For example, if the terminal transmits information carried by the PUSCH using the first uplink transmission beam and transmits the SRS using the second uplink transmission beam, the base station receives the information carried by the PUSCH using the first uplink reception beam corresponding to the first uplink transmission beam and receives the SRS using the second uplink reception beam corresponding to the second uplink transmission beam.

In this embodiment of the present invention, the process of S23 may be that the base station determines, according to the first RS resource corresponding to the first signal or the first RS resource corresponding to the second signal, an uplink receiving beam commonly used by the first signal and the second signal, and receives the uplink signal by using the uplink receiving beam.

Specifically, the base station may determine, according to a first RS resource corresponding to a signal with an earlier transmission time in the first signal and the second signal, an uplink receiving beam commonly used by the first signal and the second signal; or determining an uplink receiving beam commonly adopted by the first signal and the second signal according to a first RS resource corresponding to a signal of which the resource type is a preset resource type in the first signal and the second signal.

In another embodiment of the present invention, the process of S23 may be that the base station determines an uplink receiving beam of the first signal according to the first RS resource corresponding to the first signal, determines an uplink receiving beam of the second signal according to the first RS resource corresponding to the second signal, and then receives the uplink signal by using the uplink receiving beam.

In another embodiment of the present invention, the process of S23 may be that the base station determines, according to a third RS resource associated with the second RS resource, an uplink receiving beam commonly used by the first signal and the second signal, and further receives the uplink signal by using the uplink receiving beam.

In another embodiment of the present invention, the process of S23 may be that the base station determines, according to a third RS resource associated with a second RS resource corresponding to the first signal, an uplink receiving beam commonly used by the first signal and the second signal, or determines, according to a third RS resource associated with a second RS resource corresponding to the second signal, an uplink receiving beam commonly used by the first signal and the second signal, and further receives the uplink signal by using the uplink receiving beam.

In another embodiment of the present invention, the process of S23 may also be: the base station determines an uplink receiving beam of the first signal according to a third RS resource associated with a second RS resource corresponding to the first signal; and determining an uplink receiving beam of the second signal according to a third RS resource associated with the second RS resource corresponding to the second signal, and further receiving the uplink signal by adopting the uplink receiving beam.

In the embodiment of the invention, if the time interval between the first signal and the second signal is determined to be smaller than the preset time interval, and the first signal and the second signal adopt a common uplink transmitting beam, the base station adopts a common uplink receiving beam to receive the first signal and the second signal; or, if the time interval between the first signal and the second signal is greater than or equal to the preset time interval, and the first signal and the second signal use different uplink transmission beams, the base station receives the first signal and the second signal using different uplink reception beams.

Therefore, the base station can determine the corresponding uplink receiving beam to receive the uploaded information according to the uplink transmitting beam adopted by the terminal, thereby effectively improving the transmission performance of the system and simultaneously ensuring the stability of the system.

EXAMPLE III

As shown in fig. 5, an embodiment of the present invention further provides a terminal, which may be configured to perform the beamforming method shown in fig. 2, and the terminal includes a receiver 31, a processor 32, and a transmitter 33, and data transmission may be performed between the various components through a bus (not shown in the figure). In practical applications, the receiver 31 and the transmitter 33 may be disposed together in a transceiver.

The receiver 31 is configured to receive first indication information and/or second indication information sent by a base station; the first indication information is used for indicating at least one first RS resource selected by the base station in the configured multiple reference signal RS resources, and the second indication information is used for indicating the association relationship between the configured second RS resource and the third RS resource;

a processor 32, configured to determine an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, where the second RS resource is a resource associated with at least one uplink signal;

a transmitter 33, configured to transmit the uplink signal by using the uplink transmission beam.

Optionally, the second RS resource is associated with the second signal, and the processor 32 is configured to:

Optionally, the processor 32 is configured to:

Optionally, the processor 32 is configured to determine an uplink transmission beam of an uplink signal according to the first indication information, and specifically configured to:

Optionally, the processor 32 is specifically configured to:

and determining an uplink transmission beam commonly adopted by the first signal and the second signal according to a first RS resource corresponding to a signal of which the resource type is a preset resource type in the first signal and the second signal, wherein the time interval between the first signal and the second signal is less than a preset time interval.

Optionally, the processor 32 is configured to determine an uplink transmission beam of an uplink signal according to the second indication information, and specifically configured to:

Optionally, the processor 32 is configured to:

Example four

As shown in fig. 6, an embodiment of the present invention further provides a base station, which may be configured to perform the beamforming method shown in fig. 4, where the terminal includes a processor 41, a transmitter 42, and a receiver 43, and data transmission may be performed between the components through a bus (not shown in the figure). In practical applications, the transmitter 42 and the receiver 43 may be disposed together in a transceiver.

The processor 41 is configured to generate first indication information for indicating at least one first RS resource selected by the base station in the configured plurality of RS resources, and/or second indication information for indicating an association relationship between the configured second RS resource and the third RS resource;

the transmitter 42 is configured to transmit the first indication information and/or the second indication information to the terminal, so that the terminal device determines an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, where the second RS resource is a resource associated with at least one uplink signal;

the receiver 43 is configured to receive the uplink signal transmitted by the terminal according to the uplink transmission beam.

Optionally, the receiver 43 is configured to: and determining an uplink receiving beam corresponding to an uplink transmitting beam of the uplink signal transmitted by the terminal, and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, the second RS resource is associated with the second signal, and the receiver 43 is configured to: and determining an uplink receiving beam of the first signal according to the first RS resource, determining an uplink receiving beam of the second signal according to a third RS resource associated with the second RS, and further receiving the uplink signal by adopting the uplink receiving beam.

Optionally, the second RS resource is associated with the second signal, and the receiver 43 is configured to:

determining an uplink receiving beam commonly adopted by the first signal and the second signal according to the first RS resource corresponding to the first signal or the first RS resource corresponding to the second signal; and receiving the uplink signal by adopting the uplink receiving beam.

Specifically, when the receiver 43 is configured to determine the uplink receiving beam commonly used by the first signal and the second signal according to the first RS resource corresponding to the first signal or the first RS resource corresponding to the second signal, it is specifically configured to:

Optionally, a time interval between the first signal and the second signal is greater than or equal to a preset time interval, and the receiver 43 is further configured to:

and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, if the time interval between the first signal and the second signal is smaller than a preset time interval, the receiver 43 is further configured to: determining an uplink receiving beam commonly adopted by the first signal and the second signal according to a third RS resource associated with the second RS resource; receiving the uplink signal by adopting the uplink receiving wave beam; or

The receiver 43 is also used for: determining an uplink receiving beam commonly used by the first signal and the second signal according to a third RS resource associated with the second RS resource corresponding to the first signal, or determining an uplink receiving beam commonly used by the first signal and the second signal according to a third RS resource associated with the second RS resource corresponding to the second signal; and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, a time interval between the first signal and the second signal is greater than or equal to a preset time interval, and the receiver 43 is further configured to: determining an uplink receiving beam of the first signal according to a third RS resource associated with a second RS resource corresponding to the first signal; determining an uplink receiving beam of the second signal according to a third RS resource associated with a second RS resource corresponding to the second signal; and receiving the uplink signal by adopting the uplink receiving beam.

EXAMPLE five

Based on the same inventive concept, as shown in fig. 7, an embodiment of the present invention further discloses a terminal, which can be used for performing the beamforming method in fig. 2, and the terminal includes a receiving module 51, a determining module 52, and a transmitting module 53.

The receiving module 51 is configured to receive first indication information and/or second indication information sent by a base station; the first indication information is used for indicating at least one first RS resource selected by the base station in the configured multiple reference signal RS resources, and the second indication information is used for indicating the association relationship between the configured second RS resource and the third RS resource;

the determining module 52 is configured to determine an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, where the second RS resource is a resource associated with at least one uplink signal;

the sending module 53 is configured to transmit the uplink signal by using the uplink sending beam.

Optionally, the second RS resource is associated with the second signal, and the determining module 52 is configured to: determining an uplink transmission beam of the first signal according to the first RS resource, and determining an uplink transmission beam of the second signal according to a third RS resource associated with the second RS; wherein a time interval between the first signal and the second signal is greater than or equal to a preset time interval.

Optionally, if the time interval between the first signal and the second signal is smaller than a preset time interval, the determining module 52 determines the uplink transmission beam of the uplink signal according to the first indication information, and is specifically configured to:

Optionally, if the time interval between the first signal and the second signal is smaller than a preset time interval, the determining module 52 is configured to determine an uplink transmission beam of an uplink signal according to the first indication information, specifically:

Optionally, the determining module 52 is specifically configured to:

Optionally, the determining module 52 is configured to: determining an uplink transmission beam of the first signal according to a first RS resource corresponding to the first signal, and determining an uplink transmission beam of the second signal according to a first RS resource corresponding to the second signal; wherein a time interval between the first signal and the second signal is greater than or equal to a preset time interval.

The determining module 52 is configured to determine an uplink transmission beam of an uplink signal according to the second indication information, specifically:

Optionally, if a second RS resource in one or more association relations indicated by the second indication information corresponds to the first signal, the second RS resource in one or more association relations indicated by the second indication information corresponds to the second signal, and the association relation is an association relation between the second RS resource and a third RS resource, the determining module 52 is configured to determine an uplink transmission beam of an uplink signal according to the second indication information, specifically:

Optionally, the determining module 52 is configured to determine an uplink sending beam of an uplink signal according to the second indication information, specifically:

EXAMPLE six

Based on the same inventive concept, as shown in fig. 8, an embodiment of the present invention further discloses a base station, which can be used for performing the beamforming method in fig. 4, and the base station includes a generating module 61, a transmitting module 62, and a receiving module 63.

A generating module 61, configured to generate first indication information for indicating at least one first RS resource selected by the base station in the configured multiple RS resources, and/or second indication information for indicating an association relationship between the configured second RS resource and the third RS resource;

a sending module 62, configured to send the first indication information and/or the second indication information to the terminal, so that the terminal device determines an uplink sending beam of an uplink signal according to the first indication information and/or the second indication information, where the second RS resource is a resource associated with at least one uplink signal;

the receiving module 63 is configured to receive the uplink signal transmitted by the terminal according to the uplink transmission beam.

The uplink signal includes a first signal and a second signal transmitted on the same time domain resource block, the first signal is a signal carried by an uplink channel or an uplink reference signal, the second signal is a signal carried by an uplink channel or an uplink reference signal, and the second signal and the first signal are different signals.

Optionally, the receiving module 63 may be configured to: determining an uplink receiving beam corresponding to an uplink transmitting beam of an uplink signal transmitted by the terminal; and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, if the second RS resource is associated with the second signal, the receiving module 63 is specifically configured to:

In another embodiment of the present invention, the receiving module 63 is specifically configured to: determining an uplink receiving beam commonly adopted by the first signal and the second signal according to the first RS resource corresponding to the first signal or the first RS resource corresponding to the second signal; and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, if the time interval between the first signal and the second signal is smaller than a preset time interval, the receiving module 63 is configured to determine, according to the first RS resource corresponding to the first signal or the first RS resource corresponding to the second signal, an uplink receiving beam commonly used by the first signal and the second signal, specifically:

Optionally, if the time interval between the first signal and the second signal is greater than or equal to a preset time interval, the receiving module 63 is configured to:

and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, if the time interval between the first signal and the second signal is smaller than a preset time interval, the receiving module 63 is configured to:

and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, the receiving module 63 is configured to:

and receiving the uplink signal by adopting the uplink receiving beam.

Optionally, if the time interval between the first signal and the second signal is greater than or equal to a preset time interval, the receiving module 63 is configured to: and determining an uplink receiving beam of the first signal according to a third RS resource associated with a second RS resource corresponding to the first signal, and determining an uplink receiving beam of the second signal according to a third RS resource associated with a second RS resource corresponding to the second signal, so as to receive the uplink signal by using the uplink receiving beam.

EXAMPLE seven

Referring to fig. 9, the computer apparatus includes a processor 20 and a memory 30, where the processor 20 is configured to execute a computer program stored in the memory 30 to implement the steps of the beamforming method provided in the first embodiment to the second embodiment of the present invention.

Optionally, the processor 20 may specifically be a central processing unit, an Application Specific Integrated Circuit (ASIC), one or more Integrated circuits for controlling program execution, a hardware Circuit developed by using a Field Programmable Gate Array (FPGA), or a baseband processor.

Optionally, the processor 20 may include at least one processing core.

Optionally, the electronic device further includes a Memory 30, and the Memory 30 may include a Read Only Memory (ROM), a Random Access Memory (RAM), and a disk Memory. The memory 30 is used to store data required by the processor 20 during operation. The number of the memory 30 is one or more.

EXAMPLE six

Embodiments of the present invention further provide a computer-readable storage medium, which stores computer instructions, and when the computer instructions are executed on a computer, the steps of the beamforming method according to the first embodiment and the second embodiment of the present invention may be implemented.

In the embodiments of the present invention, it should be understood that the disclosed beamforming method and apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical or other form.

The functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be an independent physical module.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the technical solutions of the embodiments of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device, such as a personal computer, a server, or a network device, or a Processor (Processor), to execute all or part of the steps of the methods of the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a Universal Serial Bus flash drive (USB), a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, and an optical disk.

The above embodiments are only used to describe the technical solutions of the present invention in detail, but the above embodiments are only used to help understanding the method of the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention. Variations or substitutions that may be readily apparent to one skilled in the art are intended to be included within the scope of the embodiments of the present invention.

Claims

1. A method for beamforming, applied to a terminal, is characterized by comprising:

transmitting the uplink signal by adopting the uplink transmitting wave beam;

2. The method of claim 1, wherein the second RS resource is associated with the second signal, and wherein the determining the uplink transmission beam for the uplink signal according to the first indication information and the second indication information comprises:

and determining an uplink transmission beam of the second signal according to a third RS resource associated with the second RS resource.

3. The method of claim 1, wherein the determining the uplink transmission beam of the uplink signal according to the first indication information comprises:

4. The method of claim 1, wherein the first indication information indicates, for the first signal and second signal, a first RS resource corresponding to the first signal and a first RS resource corresponding to the second signal, respectively.

5. The method of claim 4, wherein the determining the uplink transmission beam of the uplink signal according to the first indication information comprises:

6. The method of claim 5, wherein the determining the uplink transmission beam commonly used by the first signal and the second signal according to the first RS resource corresponding to the first signal or the first RS resource corresponding to the second signal comprises:

7. The method of claim 4, wherein the determining the uplink transmission beam of the uplink signal according to the first indication information comprises:

8. The method of claim 1, wherein the determining an uplink transmission beam of an uplink signal according to the second indication information comprises:

9. The method of claim 1, wherein the second indication information indicates, for the first signal and the second signal, an association of a second RS resource corresponding to the first signal and an association of a second RS resource corresponding to the second signal, respectively, the association being an association of a second RS resource with a third RS resource.

10. The method of claim 9, wherein the determining an uplink transmission beam of an uplink signal according to the second indication information comprises:

11. The method of claim 9, wherein the determining an uplink transmission beam of an uplink signal according to the second indication information comprises:

12. The method of claim 3, 5 or 6, wherein a time interval between the first signal and the second signal is less than a preset time interval.

13. The method of claim 2 or 7, wherein a time interval between the first signal and the second signal is equal to or greater than a preset time interval.

14. A method for beamforming, applied to a base station, is characterized by comprising:

sending the first indication information and/or the second indication information to a terminal, so that the terminal determines an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, wherein the second RS resource is a resource associated with at least one uplink signal;

receiving the uplink signal transmitted by the terminal according to the uplink transmission beam;

15. The method of claim 14, wherein the first indication information indicates, for the first signal and second signal, a first RS resource corresponding to the first signal and a first RS resource corresponding to the second signal, respectively.

16. The method of claim 14, wherein the second indication information indicates, for the first signal and the second signal, an association of a second RS resource corresponding to the first signal and an association of a second RS resource corresponding to the second signal, respectively, the association being an association of a second RS resource with a third RS resource.

17. The method of claim 14, wherein receiving the uplink signal transmitted by the terminal according to the uplink transmission beam comprises:

and receiving the uplink signal by adopting the uplink receiving beam.

18. The method of claim 14, wherein the second RS resource is associated with the second signal, and wherein the receiving the uplink signal transmitted by the terminal in the uplink transmission beam comprises:

determining an uplink receiving beam of the second signal according to a third RS resource associated with the second RS resource;

and receiving the uplink signal by adopting the uplink receiving beam.

19. A terminal, comprising:

a transmitter, configured to transmit the uplink signal by using the uplink transmission beam;

20. The terminal of claim 19, wherein the second RS resource is associated with the second signal, the processor being configured to:

21. The terminal of claim 19, wherein the processor is configured to:

22. The terminal of claim 19, wherein the first indication information indicates, for the first signal and second signal, a first RS resource corresponding to the first signal and a first RS resource corresponding to the second signal, respectively.

23. The terminal of claim 22, wherein the processor is configured to determine an uplink transmission beam of an uplink signal according to the first indication information, and is specifically configured to:

24. The terminal of claim 23, wherein the processor is further configured to:

25. The terminal of claim 22, wherein the receiver is configured to determine an uplink transmission beam of an uplink signal according to the first indication information, and is specifically configured to:

26. The terminal of claim 19, wherein the processor is configured to determine an uplink transmission beam of an uplink signal according to the second indication information, and is specifically configured to:

27. The terminal of claim 19, wherein the second indication information indicates, for the first signal and the second signal, an association of a second RS resource corresponding to the first signal and an association of a second RS resource corresponding to the second signal, respectively, the association being an association of a second RS resource with a third RS resource.

28. The terminal of claim 19, wherein the processor is configured to determine an uplink transmission beam of an uplink signal according to the second indication information, and is specifically configured to:

29. The terminal of claim 19, wherein the processor is configured to:

determining an uplink transmission beam of a first signal according to a third RS resource associated with a second RS resource corresponding to the first signal;

30. The terminal of claim 21, 23 or 24, wherein a time interval between the first signal and the second signal is less than a preset time interval.

31. The terminal of claim 20 or 25, wherein a time interval between the first signal and the second signal is equal to or greater than a preset time interval.

32. A base station, comprising:

a transmitter, configured to transmit the first indication information and/or the second indication information to a terminal, so that the terminal determines an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, where the second RS resource is a resource associated with at least one uplink signal;

a receiver, configured to receive the uplink signal transmitted by the terminal according to the uplink transmission beam;

33. The base station of claim 32, wherein the first indication information indicates, for the first signal and second signal, a first RS resource corresponding to the first signal and a first RS resource corresponding to the second signal, respectively.

34. The base station of claim 32, wherein the second indication information indicates, for the first signal and the second signal, an association of a second RS resource corresponding to the first signal and an association of a second RS resource corresponding to the second signal, respectively, the association being an association of a second RS resource and a third RS resource.

35. The base station of claim 32, wherein the receiver is configured to:

and receiving the uplink signal by adopting the uplink receiving beam.

36. The base station of claim 32, wherein the second RS resource is associated with the second signal, the receiver to:

and receiving the uplink signal by adopting the uplink receiving beam.

37. A terminal, comprising:

the receiving module is used for receiving the first indication information and/or the second indication information sent by the base station; the first indication information is used for indicating at least one first RS resource selected by the base station in the configured multiple reference signal RS resources, and the second indication information is used for indicating the association relationship between the configured second RS resource and the third RS resource;

a sending module, configured to transmit the uplink signal by using the uplink sending beam;

38. A base station, comprising:

a sending module, configured to send the first indication information and/or the second indication information to a terminal, so that the terminal determines an uplink transmission beam of an uplink signal according to the first indication information and/or the second indication information, where the second RS resource is a resource associated with at least one uplink signal;

a receiving module, configured to receive the uplink signal transmitted by the terminal according to the uplink transmission beam;

39. A computer arrangement, characterized in that the computer arrangement comprises a processor for implementing the method of any one of claims 1-18 when executing a computer program stored in a memory.

40. A computer-readable storage medium having stored thereon computer instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-18.