WO2022022552A1

WO2022022552A1 - Beam management method and apparatus, and relay node

Info

Publication number: WO2022022552A1
Application number: PCT/CN2021/108855
Authority: WO
Inventors: 孙彦良
Original assignee: 维沃移动通信有限公司
Priority date: 2020-07-28
Filing date: 2021-07-28
Publication date: 2022-02-03
Also published as: CN114007216B; CN114007216A

Abstract

The present application relates to the technical field of communications. Disclosed are a beam management method and apparatus, and a relay node. The beam management method is applied to the relay node, and comprises: in the case of receiving a signal of at least two frequency bands, determining a target beam group of a terminal on the at least two frequency bands; and forwarding the signal on the basis of the target beam group, wherein the terminal does not support inter-band independent beam management.

Description

Beam management method, device and relay node

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202010739877.8 filed in China on Jul. 28, 2020, the entire contents of which are incorporated herein by reference.

technical field

The present application belongs to the field of communication technologies, and in particular relates to a beam management method, device and relay node.

Background technique

A terminal (User Equipment, UE) can support Inter-band Independent Beam Management (IBM) or Inter-band Co-dependent Beam Management (CBM). For terminals that only support CBM, this type of terminal has limited deployment capabilities for supported inter-band carrier aggregation (CA), which may cause the terminal to fail to successfully load the inter-band carrier aggregation, which affects the communication of the terminal.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present application is to provide a beam management method, device, and relay node, which can solve the problem that a terminal that only supports CBM cannot successfully load inter-band carrier aggregation.

In a first aspect, a beam management method is provided, applied to a relay node, and the method includes:

In the case of receiving signals of at least two frequency bands, determining a target beam group of the terminal on the at least two frequency bands;

forwarding the signal based on the target beam group;

Wherein, the terminal does not support inter-band independent beam management.

In a second aspect, a beam management apparatus is provided, which is applied to a relay node, and the apparatus includes:

a receiving module, configured to determine a target beam group of the terminal on the at least two frequency bands when signals of at least two frequency bands are received;

a sending module, configured to forward the signal based on the target beam group;

Wherein, the terminal does not support inter-band independent beam management.

In a third aspect, a relay node is provided, including a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor The steps of implementing the method as described in the first aspect.

In a fourth aspect, a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.

A fifth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network-side device program or instruction, implementing the method described in the first aspect. method described.

In the embodiment of the present application, when receiving signals of at least two frequency bands, the relay node determines a target beam group of the terminal on the at least two frequency bands, and forwards the signals based on the target beam group. In this way, for a terminal that does not support inter-band independent beam management, the relay node can forward the signal through the frequency band corresponding to the target beam group, so that the terminal can perform co-located CA deployment on the network side equipment of different frequency bands, and successfully load the band. Inter-band CA to ensure the transceiver performance of the terminal in the inter-band CA scenario.

Description of drawings

FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied;

FIG. 2 is a flowchart of a beam management method provided by an embodiment of the present application;

3 is a block diagram of another wireless communication system to which the beam management method provided by the embodiment of the present application is applied;

FIG. 4 is a structural diagram of a beam management apparatus provided by an embodiment of the present application;

FIG. 5 is a structural diagram of a relay node provided by an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first", "second" distinguishes Usually it is a class, and the number of objects is not limited. For example, the first object may be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

It is worth noting that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Division Multiple Access (Code Division Multiple Access, CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. However, the following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, although these techniques are also applicable to applications other than NR system applications, such as 6th generation ( 6th Generation, 6G) communication system.

FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12 . The terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), PDA, Netbook, Ultra-mobile Personal Computer (UMPC), Mobile Internet Device (MID), Wearable Device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Send Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. The base station in the NR system is taken as an example, but the specific type of the base station is not limited.

The beam management method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios.

Please refer to FIG. 2. FIG. 2 shows a beam management method provided by an embodiment of the present application, where the beam management method is applied to a relay node. As shown in Figure 2, the beam management method includes the following steps:

Step 201: In the case of receiving signals of at least two frequency bands, determine a target beam group of the terminal on the at least two frequency bands.

The target beam group includes at least two beams, and in some implementation scenarios, the target beam group may also be referred to as a target beam set, or a target paired beam, or the like.

It should be noted that the signal corresponding to at least two frequency bands received by the relay node may be a signal sent by a network side device or a signal sent by a terminal. In this embodiment of the present application, the at least two frequency bands include a first frequency band and a second frequency band, the first beam in the target beam group corresponds to the first frequency band, and the second beam in the target beam group corresponds to in the second frequency band. Optionally, the first beam and the second beam may be paired beams, or in other words, a pairing relationship or a binding relationship exists between the first beam and the second beam. In this way, when the terminal receives or transmits signals through the first frequency band and the second frequency band, if the first frequency band enables the first beam, the second frequency band must enable the second beam, that is, the first frequency band will enable the second beam. The beam and the second beam are present simultaneously.

In this embodiment of the present application, the determination of the target beam group may be determined by the relay node through a received signal, or may be determined through a received indication signaling.

Optionally, in an implementation manner, the determining that the terminal corresponds to the target beam group of the at least two frequency bands includes:

receiving an uplink signal sent by a terminal based on a set of beams on each of the at least two frequency bands;

Based on the uplink signal, a target beam group is determined from the beam set.

Specifically, the terminal may have N types of target beam group configurations; the network will configure multiple sets of resources for the terminal corresponding to the uplink reference signal in at least two frequency bands, each frequency band, for the terminal to send the corresponding K types of targets. The uplink reference signal configured by the beam group; the terminal determines, based on the downlink signal or other factors, the beam selected for the reference signal on the K groups of resources, that is, the beam set. Afterwards, the relay node determines the target beam group based on the signal quality on these beam sets.

In this embodiment, the terminal may transmit uplink signals based on a beam set in each frequency band, and the relay node may determine the target beam group from the beam set based on the received uplink signal. For example, since the amplification factor of the relay node on each frequency band may be inconsistent, the target beam group may be determined from the beam set based on the amplification factor of the relay node for the uplink signal.

Or, in another implementation manner, the determining that the terminal corresponds to the target beam group of the at least two frequency bands includes:

The report information sent by the terminal is received, and the target beam group is determined based on the report information, wherein the report information is used to indicate that the terminal corresponds to the target beam group of the at least two frequency bands.

Specifically, on each frequency band, the network configures downlink reference signal resources for beam management, and on these resources, the relay node forwards the downlink beams corresponding to each of the at least two frequency bands, for example, with all the The at least two frequency bands include the first frequency band and the second frequency band as an example, the relay node forwards the downlink beams corresponding to the first frequency band and the second frequency band, and the terminal UE does not change its own beam configuration. Beam measurement behavior on the device, obtain measurement results and report the results to the network. The relay node can read and obtain these measurement results, and determine that the terminal corresponds to the target beam group of the at least two frequency bands.

In this embodiment, the terminal may directly report the determined target beam group to the relay node by means of signaling instructions, and the relay node can determine, based on the reported information, that the terminal corresponds to the the target beam group of the at least two frequency bands.

As shown in FIG. 3 , for the terminal, the first beam on the first frequency band of the terminal and the second beam on the second frequency band are a pair of target beam groups. Assuming that the relay node to the terminal and the relay node to the network side equipment support independent beam management, after the relay node determines the target beam group corresponding to the terminal, it can also determine the optimal relationship between the network side equipment and the terminal The beam group, the better beam group also corresponds to the target beam group, that is, the first beam and the second beam are the better beam groups between the network side device and the terminal.

Step 202: Forward the signal based on the target beam group.

In this embodiment of the present application, the terminal does not support inter-band independent beam management (Inter-band Independent Beam Management, IBM). For example, the terminal may support Inter-band Co-dependent Beam Management (CBM). It should be noted that in the deployment of millimeter-wave Inter-band carrier aggregation (CA), co-location deployment is usually adopted, and when the terminal does not support inter-band independent beam management, it will affect a certain frequency band of the terminal transmission and reception performance.

In this embodiment of the present application, when receiving a signal corresponding to at least two frequency bands, the relay node determines a target beam group corresponding to the at least two frequency bands of the terminal, and forwards the signal based on the target beam group. In this way, for a terminal that does not support inter-band independent beam management, the relay node can forward the signal through the frequency band corresponding to the target beam group, so that the terminal can work in the scenario where network-side devices of different frequency bands perform co-located CA. The inter-band CA is successfully loaded to ensure the transceiver performance of the terminal in the inter-band CA scenario.

It should be noted that the relay technology can be divided into analog domain Amplifier Forward (AF) relay and digital domain demodulation and forward (Decode Forward, DF) relay. In this embodiment of the present application, the forwarding may be amplification and forwarding in the analog domain. Optionally, the step 202 includes:

Based on the target beam group, the signal is amplified and forwarded in the analog domain.

That is, after determining the target beam group corresponding to at least two frequency bands of the terminal, the relay node may amplify and forward the signal in the analog domain based on the at least two frequency bands corresponding to the target beam group, so as to ensure that the terminal operates in different frequency bands. lower transceiver performance.

Specifically, the forwarding performed by the relay node is analog domain amplification and forwarding, which is equivalent to the forwarding of the relay node. The length of the cyclic prefix in the prefix orthogonal frequency division multiplexing (Cyclic Prefix Orthogonal Frequency Division Multiplexing, CP-OFDM) may not exceed the length of one CP-OFDM symbol.

In addition, the forwarding magnification of the relay node in the analog domain is also controllable.

In addition, the amplification and forwarding in the analog domain will also cause the amplification of interference or noise power while amplifying the signal power. Therefore, the amplification of the relay node only changes the signal power, but does not change the signal-to-noise ratio.

In the embodiment of the present application, the relay node supports inter-band independent beam management, that is, the relay node to the terminal, and the relay node to the network side device, both support inter-band independent beam management. The relay node may be indicated by signaling to inform the terminal and the network side device. Optionally, the method may also include:

Send indication signaling to the terminal and/or network side equipment, where the indication signaling is used to instruct the relay node to support inter-band independent beam management on both the mobile terminal MT side and the distribution unit DU side.

Optionally, the relay node may send an indication signaling to the terminal or network side device to indicate that the relay node supports inter-band independence on both the mobile terminal (Mobile Terminal, MT) side and the distribution unit (Distributing Unit, DT) side. Beam management. For example, the relay node sends the indication signaling to the terminal, and the terminal also learns, based on the indication signaling, that inter-band independent beams are supported between the relay node and the terminal, and between the relay node and the network side device. management, and then the terminal can determine the relay node that supports inter-band independent beam management based on the indication signaling, and then can send signals to the relay node in a targeted manner, and realize signal forwarding based on the relay node, so as to This enables terminals that do not support inter-band independent beam management to implement inter-band CA between different frequency bands, so as to ensure the transceiving performance of terminals between different frequency bands.

Alternatively, the relay node may also send an indication signaling to both the terminal and the network side device to instruct the relay node to support inter-band independent beam management on both the MT side and the DT side, so as to ensure the transceiver performance of the terminal in the inter-band CA scenario. .

It should be noted that, the relay node may send indication signaling to the terminal and/or network side device before step 201, or may also send indication signaling to the terminal and/or network side device before step 202, This embodiment of the present application does not limit this.

In the embodiment of the present application, in the case where the relay node has a pairing relationship with the terminal, the network side device determines that the terminal supports inter-band independent beam management, that is, determines that the terminal does not support inter-band independent beam management. Independent beam management is modified to support inter-band independent beam management. That is, for a relay node supporting inter-band independent beam management, if the relay node has a terminal paired with it, the terminal also supports inter-band independent beam management based on the relay node paired with the relay node. Optionally, after the relay node is activated, the ability of the terminal paired with the relay node to support inter-band beam management is also activated.

Optionally, in the case that the maximum receiving timing difference (Maximum Receive Time difference, MRTD) of the terminal is greater than the first threshold and/or the maximum transmission timing difference (Maximum Transport Time difference, MTTD) is greater than the second threshold, the Forwarding the signal based on the target beam group includes:

The signal is delayed and forwarded on at least two beams of the target beam group.

That is, after the relay node determines the target beam group corresponding to the terminal, if the MTTD and/or MRTD capability of the terminal is weak, for example, the MRTD is greater than the first threshold and/or the MTTD is greater than the second threshold, for this type of terminal , then the relay node may determine at least two beams based on the target beam group to perform delayed forwarding of the signal, for example, may delay the signal forwarding on the beams corresponding to one or more frequency bands, thereby ensuring that the terminal is in the CA Data reception in the scenario ensures the transceiver performance of the terminal.

For example, suppose that for the first beam in the first frequency band, the delay from the network side device to the terminal is x1, and for the second beam in the second frequency band, the delay from the network side device to the terminal is y1, and the first threshold is assumed to be k1, if the time difference between x1 and y1 is greater than k1 without adding additional delay to the relay node, the relay node can add delay to the corresponding frequency band, for example, to the frequency band corresponding to the first beam Delay forwarding is performed on the signal on the second beam and/or delay forwarding is performed on the signal on the frequency band corresponding to the second beam, so that the time difference between x1 and y1 is smaller than k1.

Optionally, the delayed forwarding includes at least one of uplink delayed forwarding and downlink delayed forwarding. Understandably, when it is determined that the MRTD of the terminal is greater than the first threshold and/or the MTTD is greater than the second threshold, the relay node may perform uplink delay forwarding and/or on at least two beams of the target beam group. The downlink delay forwarding is performed to ensure that the MRTD between the corresponding signals of the at least two beams is smaller than the first threshold and/or the MTTD is smaller than the second threshold.

It should be noted that, when the delayed forwarding includes uplink delayed forwarding and downlink delayed forwarding, the delay value of the uplink delayed forwarding is consistent with the delay value of the downlink delayed forwarding. For example, in different frequency bands, taking the first frequency band and the second frequency band as examples, the delay value of the uplink delay forwarding corresponding to the first frequency band is the same as the delay value of the uplink delay forwarding corresponding to the second frequency band. The delay value of the downlink delay forwarding corresponding to the frequency band is consistent with the delay value of the downlink delay forwarding corresponding to the second frequency band; or in different frequency bands, for example, the frequency band for delayed forwarding includes the first frequency band and the second frequency band In the case of , the delay value of performing uplink delayed forwarding on the first frequency band may be the same as the delay value of performing downlink delayed forwarding on the second frequency band.

Optionally, when the delayed forwarding includes uplink delayed forwarding and downlink delayed forwarding, on the frequency band where delayed forwarding is performed, the amplification factor of the upstream delayed forwarding is the same as the amplification factor of the downstream delayed forwarding.

In this embodiment of the present application, the difference between the power spectral densities (Power Spectrum Density, PSD) of the terminal on multiple frequency bands cannot exceed a preset threshold. Optionally, in one embodiment, the step 202 may include:

Based on the target beam group, the signal is forwarded according to a preset amplification factor; wherein, the difference between the power spectral densities of the terminal in any two frequency bands corresponding to the target beam group is less than a preset threshold.

In this embodiment, the relay node may control each beam in the target beam group to forward the signal according to the preset amplification factor, that is, regardless of the original power corresponding to the target beam group, the relay node will The amplification factor of each beam is adjusted to the preset amplification factor, so that the forwarding power corresponding to the beam is the preset power, thereby ensuring that the difference between the PSDs of the terminal in any two frequency bands is less than the preset threshold.

Optionally, in another implementation manner, the step 202 may include:

Adjust the power corresponding to at least one beam in the target beam group, and forward the signal according to the adjusted power; wherein, the power of the terminal on any two frequency bands corresponding to the target beam group The difference in spectral density is less than a preset threshold.

In this embodiment, the relay node may perform corresponding adjustment according to the power corresponding to the beam in the target beam group. For example, suppose that for the first frequency band, the received power of the terminal is x2dB, and for the second frequency band, the received power of the terminal is y2dB, and the preset threshold is k2dB, that is, the PSD of the terminal on the first frequency band and the second frequency band The difference cannot exceed k2dB; then when the terminal forwards the signal, it can adjust the received power of the first frequency band, and/or adjust the received power of the second frequency band, so that after the power is adjusted, the first frequency band and the The difference between the PSDs between the second frequency bands is less than a preset threshold, so as to ensure that the difference in PSDs received by the terminal does not exceed the receiving capability of the terminal.

It should be noted that, in this embodiment of the present application, the step 202 may further include:

forwarding the signal to the terminal based on the target beam group;

or,

The signal is forwarded to the network side device based on the target beam group.

Understandably, if the relay node receives signals of at least two frequency bands sent by the network-side device, the relay node may, after determining that the terminal corresponds to the target beam group of the at least two frequency bands, based on the The target beam group forwards the signal to the terminal, for example, performing analog domain amplification and forwarding of the signal to the terminal based on the target beam group.

Alternatively, if the relay node receives the signal sent by the terminal, the relay node may forward the signal to the network side device based on the determined target beam group. In this way, the relay node can also realize the uplink forwarding and downlink forwarding of the signal, so as to ensure smooth communication of the wireless communication system.

In the solution provided by the embodiments of the present application, when receiving signals of at least two frequency bands, the relay node determines a target beam group of the terminal on the at least two frequency bands, and forwards the signals based on the target beam group. In this way, for a terminal that does not support inter-band independent beam management, the relay node can forward the signal through the frequency band corresponding to the target beam group, so that the terminal can perform co-located CA deployment on the network side equipment of different frequency bands, and successfully load the band. Inter-band CA to ensure the transceiver performance of the terminal in the inter-band CA scenario. In addition, signal forwarding through relay nodes has the advantages of low delay, low cost, and easy management and control.

It should be noted that, in the beam management method provided by the embodiments of the present application, the execution subject may be a beam management apparatus, or a control module in the beam management apparatus for executing the beam management method. In the embodiment of the present application, the beam management device provided by the embodiment of the present application is described by taking the beam management method performed by the beam management device as an example.

Please refer to FIG. 4. FIG. 4 is a structural diagram of a beam management apparatus provided by an embodiment of the present application, where the beam management apparatus is applied to a relay node. As shown in FIG. 4 , the beam management apparatus 400 includes:

a receiving module 401, configured to determine a target beam group of the terminal on the at least two frequency bands when signals of at least two frequency bands are received;

a sending module 402, configured to forward the signal based on the target beam group;

Wherein, the terminal does not support inter-band independent beam management.

Optionally, the sending module 402 is further configured to:

Optionally, in the case that the relay node has a pairing relationship with the terminal, it is determined that the terminal is modified from not supporting inter-band independent beam management to supporting inter-band independent beam management.

Optionally, when the maximum receiving timing difference MRTD of the terminal is greater than the first threshold and/or the maximum sending timing difference MTTD is greater than the second threshold, the sending module 402 is further configured to:

Optionally, the delayed forwarding includes at least one of uplink delayed forwarding and downlink delayed forwarding.

Optionally, when the delayed forwarding includes uplink delayed forwarding and downlink delayed forwarding, the delay value of the uplink delayed forwarding is consistent with the delay value of the downlink delayed forwarding.

Optionally, the sending module 402 is further configured to:

based on the target beam group, forwarding the signal according to a preset amplification factor;

Wherein, the difference between the power spectral densities of the terminal in any two frequency bands corresponding to the target beam group is less than a preset threshold.

Optionally, the sending module 402 is further configured to:

adjusting the power corresponding to at least one beam in the target beam group, and forwarding the signal according to the adjusted power;

Optionally, the sending module 402 is further configured to:

forwarding the signal to the terminal based on the target beam group;

or,

Optionally, the receiving module 401 is also used for:

receiving an uplink signal sent by the terminal based on the beam set on each of the at least two frequency bands;

Optionally, the receiving module 401 is also used for:

Optionally, the sending module 402 is further configured to:

Based on the target beam group, perform analog domain amplify-and-forward AF on the signal.

Optionally, the at least two frequency bands include a first frequency band and a second frequency band, the first beam in the target beam group corresponds to the first frequency band, and the second beam in the target beam group corresponds to the first frequency band. Two frequency bands.

In this embodiment of the present application, when receiving signals of at least two frequency bands, the beam management apparatus 400 determines a target beam group of the terminal on the at least two frequency bands, and forwards the signals based on the target beam group. In this way, for a terminal that does not support inter-band independent beam management, the relay node can forward the signal through the frequency band corresponding to the target beam group, so that the terminal can perform co-located CA deployment on the network side equipment of different frequency bands and successfully load the band. Inter-band CA to ensure the transceiver performance of the terminal in the inter-band CA scenario.

The beam management apparatus in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The beam management apparatus in this embodiment of the present application may be an apparatus with an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The beam management apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment in FIG. 2 , and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, as shown in FIG. 5 , an embodiment of the present application further provides a relay node 500 , including a processor 501 , a memory 502 , and a program or instruction stored in the memory 502 and running on the processor 501 . , when the program or instruction is executed by the processor 501, each process of the above-mentioned method embodiment of FIG. 2 can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the embodiment of the beam management method described in FIG. 2 is implemented, And can achieve the same technical effect, in order to avoid repetition, it is not repeated here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only 5e5ory, RO5), a random access memory (Rando5Access 5e5ory, RA5), a magnetic disk or an optical disk, and the like.

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction to implement the above-mentioned FIG. 2 The various processes of the beam management method embodiments described above can achieve the same technical effect. To avoid repetition, details are not repeated here.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

It will be appreciated that the embodiments described in this disclosure may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, modules, units, sub-modules, sub-units, etc. can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, for in other electronic units or combinations thereof that perform the functions described herein.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course hardware can also be used, but in many cases the former is better implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as RO5/RA5, disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims

A beam management method, applied to a relay node, includes:

In the case of receiving signals of at least two frequency bands, determining a target beam group of the terminal on the at least two frequency bands;

forwarding the signal based on the target beam group;

Wherein, the terminal does not support inter-band independent beam management.
The method of claim 1, wherein the method further comprises:

Send indication signaling to the terminal and/or network side equipment, where the indication signaling is used to instruct the relay node to support inter-band independent beam management on both the mobile terminal MT side and the distribution unit DU side.
The method of claim 1, further comprising:

In the case that the relay node has a pairing relationship with the terminal, it is determined that the terminal is modified from not supporting inter-band independent beam management to supporting inter-band independent beam management.
The method according to claim 1, wherein the forwarding based on the target beam group is performed when the maximum receiving timing difference MRTD of the terminal is greater than a first threshold and/or the maximum transmitting timing difference MTTD is greater than a second threshold The signal includes:

The signal is delayed and forwarded on at least two beams of the target beam group.
The method according to claim 4, wherein the delayed forwarding comprises at least one of uplink delayed forwarding and downlink delayed forwarding.
The method according to claim 5, wherein, when the delay forwarding includes uplink delay forwarding and downlink delay forwarding, the delay value of the uplink delay forwarding is the same as the delay value of the downlink delay forwarding. The time values are the same.
The method of claim 1, wherein the forwarding the signal based on the target beam group comprises:

based on the target beam group, forwarding the signal according to a preset amplification factor;

Wherein, the difference between the power spectral densities of the terminal in any two frequency bands corresponding to the target beam group is less than a preset threshold.
The method of claim 1, wherein the forwarding the signal based on the target beam group comprises:

adjusting the power corresponding to at least one beam in the target beam group;

forwarding the signal according to the adjusted power;

Wherein, the difference between the power spectral densities of the terminal in any two frequency bands corresponding to the target beam group is less than a preset threshold.
The method of claim 1, wherein the forwarding the signal based on the target beam group comprises:

forwarding the signal to the terminal based on the target beam group;

or,

Based on the target beam group, the signal is forwarded to the network side device.
The method according to any one of claims 1-9, wherein the determining that the terminal corresponds to the target beam group of the at least two frequency bands comprises:

receiving an uplink signal sent by the terminal based on the beam set on each of the at least two frequency bands;

Based on the uplink signal, a target beam group is determined from the beam set.
The method according to any one of claims 1-9, wherein the determining that the terminal corresponds to the target beam group of the at least two frequency bands comprises:

The report information sent by the terminal is received, and the target beam group is determined based on the report information, wherein the report information is used to indicate that the terminal corresponds to the target beam group of the at least two frequency bands.
The method of any one of claims 1-9, wherein the forwarding the signal based on the target beam group comprises:

Based on the target beam group, perform analog domain amplify-and-forward AF on the signal.
The method according to any one of claims 1-9, wherein the at least two frequency bands include a first frequency band and a second frequency band, the first beam in the target beam group corresponds to the first frequency band, and the The second beam in the target beam group corresponds to the second frequency band.
A beam management apparatus, applied to a relay node, includes:

a receiving module, configured to determine a target beam group of the terminal on the at least two frequency bands when signals of at least two frequency bands are received;

a sending module, configured to forward the signal based on the target beam group;

Wherein, the terminal does not support inter-band independent beam management.
The apparatus according to claim 14, wherein the sending module is further configured to:

Send indication signaling to the terminal and/or network side equipment, where the indication signaling is used to instruct the relay node to support inter-band independent beam management on both the mobile terminal MT side and the distribution unit DU side.
The apparatus of claim 14, further comprising:

A determining module, configured to determine that the terminal is modified from not supporting inter-band independent beam management to supporting inter-band independent beam management in the case that the relay node has a pairing relationship with the terminal.
The apparatus according to claim 14, wherein, when the maximum receiving timing difference MRTD of the terminal is greater than a first threshold and/or the maximum sending timing difference MTTD is greater than a second threshold, the sending module is further configured to:

The signal is delayed and forwarded on at least two beams of the target beam group.
The apparatus according to claim 17, wherein the delayed forwarding comprises at least one of uplink delayed forwarding and downlink delayed forwarding.
The apparatus according to claim 18, wherein, when the delayed forwarding includes uplink delayed forwarding and downlink delayed forwarding, the delay value of the uplink delayed forwarding is the same as the delay value of the downlink delayed forwarding. The time values are the same.
The apparatus according to claim 14, wherein the sending module is further configured to:

based on the target beam group, forwarding the signal according to a preset amplification factor;

Wherein, the difference between the power spectral densities of the terminal in any two frequency bands corresponding to the target beam group is less than a preset threshold.
The apparatus according to claim 14, wherein the sending module is further configured to:

adjusting the power corresponding to at least one beam in the target beam group, and forwarding the signal according to the adjusted power;

Wherein, the difference between the power spectral densities of the terminal in any two frequency bands corresponding to the target beam group is less than a preset threshold.
The apparatus according to claim 14, wherein the sending module is further configured to:

forwarding the signal to the terminal based on the target beam group;

or,

The signal is forwarded to the network side device based on the target beam group.
The apparatus according to any one of claims 14-22, wherein the receiving module is further configured to:

receiving an uplink signal sent by the terminal based on the beam set on each of the at least two frequency bands;

Based on the uplink signal, a target beam group is determined from the beam set.
The apparatus according to any one of claims 14-22, wherein the receiving module is further configured to:

The report information sent by the terminal is received, and the target beam group is determined based on the report information, wherein the report information is used to indicate that the terminal corresponds to the target beam group of the at least two frequency bands.
The device according to any one of claims 14-22, wherein the sending module is further configured to:

Based on the target beam group, perform analog domain amplify-and-forward AF on the signal.
The apparatus according to any one of claims 14-22, wherein the at least two frequency bands include a first frequency band and a second frequency band, the first beam in the target beam group corresponds to the first frequency band, and the The second beam in the target beam group corresponds to the second frequency band.
A relay node, comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the processor to implement claims 1 to The steps of any one of 13.
A readable storage medium on which programs or instructions are stored, the programs or instructions implementing the steps of the method according to any one of claims 1 to 13 when executed by a processor.