CN114007216B - Beam management method and device and relay node - Google Patents
Beam management method and device and relay node Download PDFInfo
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- CN114007216B CN114007216B CN202010739877.8A CN202010739877A CN114007216B CN 114007216 B CN114007216 B CN 114007216B CN 202010739877 A CN202010739877 A CN 202010739877A CN 114007216 B CN114007216 B CN 114007216B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
Abstract
The application discloses a beam management method, a beam management device and a relay node, and belongs to the technical field of communication. The beam management method is applied to the relay node and comprises the following steps: 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 scheme provided by the embodiment of the application solves the problem that the existing terminal only supporting CBM can not successfully load inter-band carrier aggregation.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a beam management method, a beam management device and a relay node.
Background
A terminal (UE) can support Inter-band Independent Beam Management (IBM) or Inter-band Co-dependent Beam Management (CBM). For terminals only supporting CBM, the deployment capability of supported inter-band Carrier Aggregation (CA) by this type of terminals is limited, so that the terminals may not be able to successfully load inter-band Carrier Aggregation, which may affect communication of the terminals.
Disclosure of Invention
An object of the embodiments of the present application is to provide a method and an apparatus for beam management and a 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, and is applied to a relay node, where 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, an apparatus for beam management is provided, where the apparatus is applied to a relay node, and the apparatus includes:
the terminal comprises a receiving module, a processing module and a processing module, wherein the receiving module is used for determining a target beam group of the terminal on at least two frequency bands under the condition that signals of the at least two frequency bands are received;
a transmitting module for forwarding the signal based on the target beam group;
wherein the terminal does not support inter-band independent beam management.
In a third aspect, there is provided a relay node comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, implement the steps of the method according to the first aspect.
In a fourth aspect, a readable storage medium is provided, on which a program or instructions are stored, which when executed by a processor, implement the steps of the method according to the first aspect.
In a fifth aspect, a chip is provided, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a network-side device program or instruction to implement the method according to the first aspect.
In the embodiment of the application, when receiving signals of at least two frequency bands, a relay node determines a target beam group of a 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 may forward a signal through a frequency band corresponding to a target beam group, so that the terminal may perform co-location CA deployment on network-side devices of different frequency bands, successfully load inter-band CA, and ensure the transceiving performance of the terminal in an inter-band CA scenario.
Drawings
FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;
fig. 2 is a flowchart of a beam management method according to an embodiment of the present application;
fig. 3 is a block diagram of another wireless communication system to which a beam management method provided by an embodiment of the present application is applied;
fig. 4 is a structural diagram of a beam management apparatus according to an embodiment of the present application;
fig. 5 is a structural diagram of a relay node according to 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 drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), 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 techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation) th Generation, 6G) communication system.
Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. 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, where the Base Station may be referred to as a node B, an enodeb, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home enodeb, a WLAN access Point, a WiFi node, a Transmit Receive 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 a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only 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 in the embodiments of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Referring to fig. 2, fig. 2 is a beam management method according to an embodiment of the present disclosure, where the beam management method is applied to a relay node. As shown in fig. 2, the beam management method includes the following steps:
In some implementation scenarios, the target beam group may also be referred to as a target beam set, or a target paired beam, etc.
The signals corresponding to the at least two frequency bands received by the relay node may be signals transmitted by the network side device or signals transmitted by the terminal. In an embodiment of the application, the at least two frequency bands include a first frequency band and a second frequency band, a first beam of the target beam group corresponds to the first frequency band, and a second beam of the target beam group corresponds to the second frequency band. Optionally, the first beam and the second beam may be paired beams, or 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 beam is enabled in the first frequency band, the second beam is necessarily enabled in the second frequency band, that is, the first beam and the second beam exist at the same time.
In this embodiment of the 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 embodiment, the determining that the terminal corresponds to the target beam group of the at least two frequency bands includes:
receiving an uplink signal transmitted by the terminal on each frequency band of the at least two frequency bands based on the beam set;
determining a target beam group from the beam set based on the uplink signal.
Specifically, the terminal may have N target beam group configurations; the network respectively configures multiple groups of resources of corresponding uplink reference signals for the terminal in at least two frequency bands, so that the terminal can send the uplink reference signals configured corresponding to the K target beam groups; the terminal determines the beams selected by the reference signals on the K sets of resources, i.e. the beam set, based on the downlink signals or other factors. The relay node then determines a target beam group based on the signal quality on these beam sets.
In this embodiment, the terminal may transmit the uplink signal based on the 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 may not be consistent on each frequency band, the target beam group may be determined from the beam set based on the amplification factor of the relay node on the uplink signal.
Or, in another embodiment, the determining that the terminal corresponds to the target beam group of the at least two frequency bands includes:
and receiving reporting information sent by a terminal, and determining a target beam group based on the reporting information, wherein the reporting information is used for indicating that the terminal corresponds to the target beam groups of the at least two frequency bands.
Specifically, on each frequency band, the network configures downlink reference signal resources for beam management, and the relay node forwards downlink beams corresponding to each of at least two frequency bands on these resources, for example, taking the at least two frequency bands including a first frequency band and a second frequency band as an example, the relay node forwards downlink beams corresponding to the first frequency band and the second frequency band, and on the premise that the terminal UE does not change its own beam configuration, based on a beam measurement behavior on each frequency band, a measurement result is obtained and reported to the network. The relay node may read and obtain these measurement results, and determine a target beam group corresponding to the at least two frequency bands for the terminal.
In this embodiment, the terminal may directly report the determined target beam group to the relay node in a signaling indication manner, and the relay node may determine, based on the received report information, the target beam group corresponding to the at least two frequency bands of the terminal based on the report information.
As shown in fig. 3, for a terminal, a first beam on a first frequency band and a second beam on a second frequency band of the terminal are a pair of target beam groups. Assuming that the relay node to the terminal and the relay node to the network side device both support independent beam management, after the relay node determines a target beam group corresponding to the terminal, the relay node may determine a preferred beam group between the network side device and the terminal, where the preferred beam group also corresponds to the target beam group, that is, the first beam and the second beam are preferred beam groups between the network side device and the terminal.
In the embodiment of the present application, the terminal does not support Inter-band Independent Beam Management (IBM). For example, the terminal may be a CBM (Inter-band Co-dependent Beam Management) capable of supporting Inter-band non-independent Beam Management. It should be noted that, in the deployment of millimeter wave Inter-band Carrier Aggregation (CA), a co-located deployment mode is usually adopted, and when the terminal does not support Inter-band independent beam management, the transceiving performance of a certain frequency band of the terminal is affected.
In the embodiment of the application, when receiving signals corresponding to at least two frequency bands, a relay node determines a target beam group corresponding to the at least two frequency bands for a terminal, 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 may forward the signal through the frequency band corresponding to the target beam group, so that the terminal can operate in a scenario of co-location CA by network side devices of different frequency bands, successfully load inter-band CA, and ensure the transceiving performance of the terminal in the inter-band CA scenario.
It should be noted that the relay technology can be divided into analog domain Amplify and Forward (AF) relay and digital domain Demodulate and Forward (DF) relay. In the embodiment of the present application, the forwarding may be analog domain amplification forwarding. Optionally, the step 202 includes:
and carrying out analog domain amplification forwarding on the signals based on the target beam group.
That is to say, after determining the target beam groups corresponding to the at least two frequency bands of the terminal, the relay node may perform analog domain amplification forwarding on the signal based on the at least two frequency bands corresponding to the target beam groups, so as to ensure the transceiving performance of the terminal under different frequency bands.
Specifically, the forwarding performed by the relay node is analog domain amplification forwarding, and the forwarding equivalent to the forwarding performed by the relay node has the following characteristics: the relay node signal forwarding delay is controllable and does not exceed x microseconds, namely the length of a Cyclic Prefix in Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) or the length of 1 CP-OFDM symbol.
In addition, the analog domain forwarding amplification factor of the relay node is controllable.
In addition, the amplification forwarding of the analog domain can cause interference or noise power amplification while amplifying the signal power, so that the power of the signal is only changed without changing the signal-to-noise ratio by the amplification of the relay node.
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 further include:
and sending an indication signaling to a terminal and/or network side equipment, wherein the indication signaling is used for indicating that the relay node supports inter-band independent beam management on both a Mobile Terminal (MT) side and a Distribution Unit (DU) side.
Optionally, the relay node may send an indication signaling to the Terminal or the network side device to indicate that the relay node supports inter-band independent beam management on both a Mobile Terminal (MT) side and a distribution Unit (DT) side. For example, the relay node sends the indication signaling to the terminal, the terminal knows that the inter-band independent beam management is supported between the relay node and the terminal and between the relay node and the network side device based on the indication signaling, and then the terminal can determine the relay node supporting the inter-band independent beam management based on the indication signaling, and further can send a signal to the relay node in a targeted manner, and implement signal forwarding based on the relay node, so that the terminal not supporting the inter-band independent beam management can also implement inter-band CA between different frequency bands, and ensure the transceiving performance of the terminal between different frequency bands.
Or, the relay node may also send an indication signaling to both the terminal and the network side device to indicate that the relay node supports inter-band independent beam management on both the MT side and the DT side, so as to ensure the transceiving performance of the terminal in an inter-band CA scenario.
It should be noted that, the relay node may send the indication signaling to the terminal and/or the network side device before step 201, or may send the indication signaling to the terminal and/or the network side device before step 202, which is not limited in this embodiment of the present invention.
In this embodiment of the present application, when the relay node and the terminal have a pairing relationship, the network side device determines that the terminal supports inter-band independent beam management, that is, determines that the terminal is modified from not supporting inter-band independent beam management to supporting inter-band independent beam management. That is, for a relay node supporting inter-band independent beam management, if there is a terminal paired with the relay node, the terminal also supports inter-band independent beam management based on the relay node paired with the terminal. Optionally, after the relay node is activated, the capability of the terminal paired with the relay node to support inter-band beam management is also activated.
Optionally, the forwarding the signal based on the target beam group when a Maximum Receive Timing Difference (MRTD) of the terminal is greater than a first threshold and/or a Maximum Transmit Timing Difference (MTTD) of the terminal is greater than a second threshold includes:
and delaying and forwarding the signal on at least two beams of the target beam group.
That is to say, 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 the terminal of this kind, the relay node may determine at least two beams based on the target beam group to perform delay forwarding on the signal, for example, signal forwarding on a beam corresponding to one or more frequency bands may be delayed, so as to ensure data reception of the terminal in a CA scenario, and ensure the transceiving performance of the terminal.
For example, assuming that for a first beam in a first frequency band, the delay from the network side device to the terminal is x1, and for a second beam in a second frequency band, the delay from the network side device to the terminal is y1, and assuming that the first threshold is k1, if it is assumed that the relay node does not add additional delay, the time difference between x1 and y1 is greater than k1, the relay node may be a method of adding delay to the corresponding frequency band, for example, delay forwarding a signal on the frequency band corresponding to the first beam and/or delay forwarding a signal on the frequency band corresponding to the second beam, so that the time difference between x1 and y1 is less than k1.
Optionally, the delay forwarding includes at least one of uplink delay forwarding and downlink delay forwarding. It is to be understood that, in the case that 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 downlink delay forwarding on the at least two beams of the target beam group to ensure that the MRTD between the signals corresponding to the at least two beams is less than the first threshold and/or the MTTD is less than the second threshold.
It should be noted that, under the condition that the delay forwarding includes uplink delay forwarding and downlink delay forwarding, the delay value of the uplink delay forwarding is consistent with the delay value of the downlink delay forwarding. For example, under different frequency bands, taking a first frequency band and a second frequency band as an example, a delay value of uplink delay forwarding corresponding to the first frequency band is consistent with a delay value of uplink delay forwarding corresponding to the second frequency band, and a delay value of downlink delay forwarding corresponding to the first frequency band is consistent with a delay value of downlink delay forwarding corresponding to the second frequency band; or in different frequency bands, for example, in the case that the frequency band for performing delay forwarding includes a first frequency band and a second frequency band, the delay value for performing uplink delay forwarding on the first frequency band may be identical to the delay value for performing downlink delay forwarding on the second frequency band.
Optionally, under the condition that the delay forwarding includes uplink delay forwarding and downlink delay forwarding, on the frequency band where delay forwarding is performed, the amplification factor of uplink delay forwarding is consistent with the amplification factor of downlink delay forwarding.
In the embodiment of the present application, a difference between Power Spectrum Densities (PSDs) of the terminals in multiple frequency bands cannot exceed a preset threshold. Optionally, in an embodiment, the step 202 may include:
forwarding the signal according to a preset amplification factor based on the target beam group; and the difference of the power spectral densities of the terminal on any two frequency bands corresponding to the target beam group is smaller than a preset threshold value.
In this embodiment, the relay node may control each beam in the target beam group to forward the signal according to a preset amplification factor, that is, no matter what power originally corresponding to the target beam group is, the relay node may adjust the amplification factor of each beam to be the preset amplification factor, so as to make the forwarding power corresponding to the beam be the preset power, and further ensure that a difference between PSDs of the terminal on any two frequency bands is smaller than a preset threshold.
Optionally, in another embodiment, the step 202 may include:
adjusting the power corresponding to at least one beam in the target beam group, and forwarding the signal according to the adjusted power; and the difference between the power spectral densities of the terminal on any two frequency bands corresponding to the target beam group is smaller than a preset threshold value.
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, assuming that the received power of the terminal is x2 dB for the first frequency band and y2 dB for the second frequency band, the preset threshold is k2 dB, that is, the difference between the PSDs of the terminal on the first frequency band and the second frequency band cannot exceed k2 dB; when the terminal forwards the signal, the received power of the first frequency band may be adjusted, and/or the received power of the second frequency band may be adjusted, so that after the power is adjusted, the PSD difference between the first frequency band and the second frequency band is smaller than a preset threshold, so as to ensure that the PSD difference 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;
alternatively, the first and second electrodes may be,
and forwarding the signal to network side equipment based on the target beam group.
It can be understood that, if the relay node receives signals of at least two frequency bands sent by the network-side device, the relay node may forward the signals to the terminal based on a target beam group corresponding to the at least two frequency bands after determining that the terminal corresponds to the target beam group, for example, perform analog domain amplification forwarding of the signals to the terminal based on the target beam group.
Alternatively, if the relay node receives a signal sent by the terminal, the relay node may forward the signal to the network-side device based on the determined target beam group. Therefore, the relay node can realize uplink forwarding and downlink forwarding of signals, and smooth communication of the wireless communication system is ensured.
According to the scheme provided by the embodiment of the application, when the relay node receives 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 may forward a signal through a frequency band corresponding to a target beam group, so that the terminal may perform co-location CA deployment on network-side devices of different frequency bands, successfully load inter-band CA, and ensure the transceiving performance of the terminal in an inter-band CA scenario. In addition, the relay node is used for forwarding the signal, and the method has the advantages of low time delay, low cost, convenience in management and control and the like.
It should be noted that, in the beam management method provided in the embodiment 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, a beam management apparatus is taken as an example to execute a beam management method, and the beam management apparatus provided in the embodiment of the present application is described.
Referring to fig. 4, fig. 4 is a structural diagram of a beam management apparatus according to 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, in a case that signals of at least two frequency bands are received, a target beam group of a terminal on the at least two frequency bands;
a transmitting 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:
and sending an indication signaling to a terminal and/or network side equipment, wherein the indication signaling is used for indicating that the relay node supports inter-band independent beam management on both a Mobile Terminal (MT) side and a Distribution Unit (DU) side.
Optionally, when the relay node and the terminal have a pairing relationship, it is determined that the terminal is modified from not supporting inter-band independent beam management to supporting inter-band independent beam management.
Optionally, the sending module 402 is further configured to, in a case that 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:
delaying retransmission of the signal on at least two beams of the target beam group.
Optionally, the delay forwarding includes at least one of uplink delay forwarding and downlink delay forwarding.
Optionally, when the delay forwarding includes uplink delay forwarding and downlink delay forwarding, the delay value of the uplink delay forwarding is consistent with the delay value of the downlink delay forwarding.
Optionally, the sending module 402 is further configured to:
forwarding the signal according to a preset amplification factor based on the target beam group;
and the difference of the power spectral densities of the terminal on any two frequency bands corresponding to the target beam group is smaller than a preset threshold value.
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;
and the difference of the power spectral densities of the terminal on any two frequency bands corresponding to the target beam group is smaller than a preset threshold value.
Optionally, the sending module 402 is further configured to:
forwarding the signal to the terminal based on the target beam group;
alternatively, the first and second liquid crystal display panels may be,
and forwarding the signal to network side equipment based on the target beam group.
Optionally, the receiving module 401 is further configured to:
receiving an uplink signal transmitted by the terminal on each frequency band of the at least two frequency bands based on the beam set;
determining a target beam group from the beam set based on the uplink signal.
Optionally, the receiving module 401 is further configured to:
and receiving reporting information sent by a terminal, and determining a target beam group based on the reporting information, wherein the reporting information is used for indicating that the terminal corresponds to the target beam groups of the at least two frequency bands.
Optionally, the sending module 402 is further configured to:
and carrying out analog domain Amplification Forwarding (AF) on the signals based on the target beam group.
Optionally, the at least two frequency bands include a first frequency band and a second frequency band, a first beam in the target beam group corresponds to the first frequency band, and a second beam in the target beam group corresponds to the second frequency band.
In this embodiment, 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. Therefore, for a terminal which does not support inter-band independent beam management, the relay node can forward signals through a frequency band corresponding to the target beam group, so that the terminal can perform co-location CA deployment on network side equipment of different frequency bands, inter-band CA is successfully loaded, and the transceiving performance of the terminal in an inter-band CA scene is ensured.
The beam management apparatus in the 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 can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal may include, but is not limited to, the type of the terminal 11 listed above, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a television (television), a teller machine (teller machine), a self-service machine (kiosk), or the like, and the embodiments of the present application are not limited in particular.
The beam management apparatus in the embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.
The beam management device provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 2, and achieve the same technical effect, and is not described here again to avoid repetition.
Optionally, as shown in fig. 5, an embodiment of the present application further provides a relay node 500, which includes a processor 501, a memory 502, and a program or an instruction stored in the memory 502 and capable of running on the processor 501, where the program or the instruction is executed by the processor 501 to implement each process of the method embodiment in fig. 2, and can achieve the same technical effect, and in order 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 the instruction is executed by a processor, the program or the instruction implements each process of the embodiment of the beam management method in fig. 2, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only memory (Read-Only 5e5 ry, RO5), a random Access memory (Rando 5 Access 5e5 ry, 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 configured to run a network-side device program or an instruction, so as to implement each process of the embodiment of the beam management method in fig. 2, and achieve the same technical effect, and in order to avoid repetition, the details are not repeated here.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application or portions thereof contributing to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (such as RO5/RA5, magnetic disk, optical disk), and includes several instructions for enabling a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the method described in the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (28)
1. A beam management method is applied to a relay node, and is characterized in that the method comprises the following steps:
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.
2. The method of claim 1, further comprising:
and sending an indication signaling to a terminal and/or network side equipment, wherein the indication signaling is used for indicating that the relay node supports inter-band independent beam management on both a Mobile Terminal (MT) side and a Distribution Unit (DU) side.
3. The method of claim 1, further comprising:
and under the condition that the relay node and the terminal have a pairing relation, determining that the terminal is modified from not supporting inter-band independent beam management to supporting inter-band independent beam management.
4. The method according to claim 1, wherein in case 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, said forwarding the signal based on the target beam group comprises:
delaying retransmission of the signal on at least two beams of the target beam group.
5. The method of claim 4, wherein the delayed forwarding comprises at least one of upstream delayed forwarding and downstream delayed forwarding.
6. The method according to claim 5, wherein in a case that the delay forwarding includes an uplink delay forwarding and a downlink delay forwarding, a delay value of the uplink delay forwarding is consistent with a delay value of the downlink delay forwarding.
7. The method of claim 1, wherein said forwarding the signal based on the target beam group comprises:
forwarding the signal according to a preset amplification factor based on the target beam group;
and the difference between the power spectral densities of the terminal on any two frequency bands corresponding to the target beam group is smaller than a preset threshold value.
8. The method of claim 1, wherein said forwarding the signal based on the target beam group comprises:
adjusting power corresponding to at least one beam in the target beam group;
forwarding the signal according to the adjusted power;
and the difference between the power spectral densities of the terminal on any two frequency bands corresponding to the target beam group is smaller than a preset threshold value.
9. The method of claim 1, wherein said forwarding the signal based on the target beam group comprises:
forwarding the signal to the terminal based on the target beam group;
alternatively, the first and second liquid crystal display panels may be,
and forwarding the signal to network side equipment based on the target beam group.
10. The method of any of claims 1-9, wherein determining that the terminal corresponds to a target beam group of the at least two frequency bands comprises:
receiving an uplink signal sent by the terminal on each frequency band of the at least two frequency bands based on the beam set;
determining a target beam group from the beam set based on the uplink signal.
11. The method of any of claims 1-9, wherein determining that the terminal corresponds to a target beam group of the at least two frequency bands comprises:
and receiving reporting information sent by a terminal, and determining a target beam group based on the reporting information, wherein the reporting information is used for indicating that the terminal corresponds to the target beam groups of the at least two frequency bands.
12. The method according to any of claims 1-9, wherein said forwarding the signal based on the target beam group comprises:
and carrying out analog domain Amplification Forwarding (AF) on the signals based on the target beam group.
13. The method of any of claims 1-9, wherein the at least two frequency bands include a first frequency band and a second frequency band, wherein a first beam of the target set of beams corresponds to the first frequency band, and wherein a second beam of the target set of beams corresponds to the second frequency band.
14. A beam management device applied to a relay node, the device comprising:
the terminal comprises a receiving module, a processing module and a processing module, wherein the receiving module is used for determining a target beam group of the terminal on at least two frequency bands under the condition that signals of the at least two frequency bands are received;
a transmitting module for forwarding the signal based on the target beam group;
wherein the terminal does not support inter-band independent beam management.
15. The apparatus of claim 14, wherein the sending module is further configured to:
and sending an indication signaling to a terminal and/or network side equipment, wherein the indication signaling is used for indicating that the relay node supports inter-band independent beam management on both a Mobile Terminal (MT) side and a Distribution Unit (DU) side.
16. 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 when the relay node and the terminal have a pairing relationship.
17. The apparatus of claim 14, wherein in case that 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 transmitting module is further configured to:
and delaying and forwarding the signal on at least two beams of the target beam group.
18. The apparatus of claim 17, wherein the delayed forwarding comprises at least one of upstream delayed forwarding and downstream delayed forwarding.
19. The apparatus of claim 18, wherein in a case that the delay forwarding comprises an uplink delay forwarding and a downlink delay forwarding, a delay value of the uplink delay forwarding is consistent with a delay value of the downlink delay forwarding.
20. The apparatus of claim 14, wherein the sending module is further configured to:
forwarding the signal according to a preset amplification factor based on the target beam group;
and the difference of the power spectral densities of the terminal on any two frequency bands corresponding to the target beam group is smaller than a preset threshold value.
21. The apparatus of 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;
and the difference of the power spectral densities of the terminal on any two frequency bands corresponding to the target beam group is smaller than a preset threshold value.
22. The apparatus of claim 14, wherein the sending module is further configured to:
forwarding the signal to the terminal based on the target beam group;
alternatively, the first and second electrodes may be,
and forwarding the signal to network side equipment based on the target beam group.
23. The apparatus of any one of claims 14-22, wherein the receiving module is further configured to:
receiving an uplink signal sent by the terminal on each frequency band of the at least two frequency bands based on the beam set;
determining a target beam group from the beam set based on the uplink signal.
24. The apparatus of any one of claims 14-22, wherein the receiving module is further configured to:
and receiving reporting information sent by a terminal, and determining a target beam group based on the reporting information, wherein the reporting information is used for indicating that the terminal corresponds to the target beam groups of the at least two frequency bands.
25. The apparatus of any one of claims 14-22, wherein the sending module is further configured to:
and carrying out analog domain Amplification Forwarding (AF) on the signals based on the target beam group.
26. The apparatus of any of claims 14-22, wherein the at least two frequency bands comprise a first frequency band and a second frequency band, wherein a first beam of the target set of beams corresponds to the first frequency band, and wherein a second beam of the target set of beams corresponds to the second frequency band.
27. A relay node comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, which program or instructions, when executed by the processor, carry out the steps of the method according to any one of claims 1 to 13.
28. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor, implement the steps of the method according to any one of claims 1 to 13.
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| CN202010739877.8A CN114007216B (en) | 2020-07-28 | 2020-07-28 | Beam management method and device and relay node |
| PCT/CN2021/108855 WO2022022552A1 (en) | 2020-07-28 | 2021-07-28 | Beam management method and apparatus, and relay node |
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| CN115189745A (en) * | 2021-04-02 | 2022-10-14 | 华为技术有限公司 | Signal forwarding method and device |
| CN116669088A (en) * | 2022-02-18 | 2023-08-29 | 展讯半导体(南京)有限公司 | Data transmission method, device, equipment and storage medium |
| WO2023236023A1 (en) * | 2022-06-06 | 2023-12-14 | 富士通株式会社 | Communication method, apparatus and system |
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| EP3681085B1 (en) * | 2019-01-09 | 2022-07-27 | Comcast Cable Communications, LLC | Methods, devices, and apparatuses for beam management |
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| CN109150273A (en) * | 2017-06-28 | 2019-01-04 | 捷开通讯(深圳)有限公司 | Wave beam management method and device |
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