A method, apparatus, device, and storage medium for configuring reference signal resources
By configuring an associated reference signal resource pool for frequency domain units, the problem of insufficient channel feature estimation accuracy is solved, and the estimation accuracy of the head-diameter position and signal synchronization capability are improved.
Patent Information
- Application Number
- CN202010287751.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-04-13
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2040-04-13
AI Technical Summary
Due to factors such as terminal capabilities and interference coordination, the signal bandwidth is limited, resulting in insufficient accuracy of channel feature estimation, especially the head-diameter position estimation.
A plurality of frequency domain units are configured as a set of frequency domain units, and a reference signal resource pool of associated relationships is configured for these units, and channel characteristics are jointly estimated by configuring preset properties for reference signal resources with associated relationships.
The accuracy of channel feature estimation, especially the estimation accuracy of the first diameter position, enhances the estimation ability of signal synchronization and signal transmission time.
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Figure CN111901874B_ABST
Abstract
Description
Technical Field
[0001] This application relates to mobile communication technologies, and in particular, to a method, apparatus, device, and storage medium for configuring reference signal resources. Background Art
[0002] Generally speaking, the larger the signal bandwidth, the more accurate the receiver's estimation of the channel characteristics. However, due to factors such as terminal capabilities and interference coordination, the continuous frequency domain units available for the signal are limited, which in turn affects the accuracy of channel characteristic estimation. For example, the first path position is an important channel characteristic and plays an important role in signal synchronization and signal transmission time estimation. The accuracy of the first path position estimation depends to a large extent on the signal bandwidth because the larger the bandwidth, the larger the sampling time resolution. Summary of the Invention
[0003] This application provides a method, apparatus, device, and storage medium for configuring reference signal resources to improve the accuracy of channel estimation.
[0004] An embodiment of this application provides a method for configuring reference signal resources, including:
[0005] Configuring a plurality of frequency domain units as a frequency domain unit set, where the frequency domain units are frequency domain resources in a preset frequency band;
[0006] Configuring corresponding reference signal resource pools for the plurality of frequency domain units, where each reference signal resource pool includes a plurality of reference signal resources, and at least some of the reference signal resources have an association relationship established according to a preset rule or an association relationship indicated by the association relationship between the frequency domain units;
[0007] Configuring preset resource attributes for the plurality of reference signal resources having an association relationship.
[0008] An embodiment of this application provides a device for configuring reference signal resources, including:
[0009] A frequency domain unit configuration module, configured to configure a plurality of frequency domain units as a frequency domain unit set, where the frequency domain units are frequency domain resources in a preset frequency band;
[0010] A reference signal resource pool configuration module, configured to configure corresponding reference signal resource pools for the plurality of frequency domain units, where each reference signal resource pool includes a plurality of reference signal resources, and at least some of the reference signal resources have an association relationship established according to a preset rule or an association relationship indicated by the association relationship between the frequency domain units;
[0011] A resource attribute configuration module, configured to configure preset resource attributes for the plurality of reference signal resources having an association relationship.
[0012] An embodiment of the present application provides a device, including: a memory, and one or more processors;
[0013] The memory is used to store one or more programs;
[0014] When the one or more programs are executed by the one or more processors, the one or more processors implement any one of the methods in the embodiments of the present application.
[0015] An embodiment of the present application provides a storage medium, which stores a computer program, and when the computer program is executed by a processor, it implements any one of the methods in the embodiments of the present application.
[0016] The reference signal resources with an association relationship provided in the embodiments of the present application can be used to estimate the position of the first path of the channel, thereby improving the estimation accuracy of the first path position.
[0017] More descriptions are provided in the accompanying drawings, the specific implementation manners, and the claims regarding the above embodiments and other aspects of the present application and their implementation manners. Description of the Drawings
[0018] Figure 1 It is a flowchart of a method for configuring reference signal resources provided by an embodiment of the present application;
[0019] Figure 2 It is a schematic diagram of the architecture of a frequency domain unit and a reference signal resource pool provided by an embodiment of the present application;
[0020] Figure 3 It is a schematic diagram of the architecture of a frequency domain unit and a reference signal resource pool provided by an embodiment of the present application;
[0021] Figure 4 It is a schematic diagram of the structure of a device for configuring reference signal resources provided by an embodiment of the present application;
[0022] Figure 5 It is a schematic diagram of the structure of a device provided by an embodiment of the present application. Detailed Description of the Embodiments
[0023] To make the objectives, technical solutions, and advantages of the present application clearer and more understandable, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other arbitrarily.
[0024] The estimation of the first path position plays an important role in signal synchronization and signal transmission time estimation. In the prior art, there are two directions to improve the estimation accuracy of the first path position. One is to improve the estimation accuracy through the algorithm at the receiving end; the other is to increase the bandwidth of the signal. The former method can improve the accuracy of finding the first path position, but cannot improve the time resolution because the time resolution depends on the bandwidth of the signal. Therefore, the latter method improves the time resolution by increasing the bandwidth of the signal. However, due to factors such as terminal capabilities and interference coordination, the continuous frequency domain units available for the signal are limited, which in turn affects the estimation accuracy of the first path position. This application aims to provide frequency domain units with an associated relationship for jointly estimating channel characteristics, thereby improving the estimation accuracy of channel characteristics.
[0025] In an embodiment of this application, Figure 1 A flowchart showing a method for configuring reference signal resources is presented. The method includes:
[0026] S110. Configure multiple frequency domain units into a frequency domain unit set, where the frequency domain units are frequency domain resources in a preset frequency band;
[0027] S120. Configure corresponding reference signal resource pools for the multiple frequency domain units, where each reference signal resource pool includes multiple reference signal resources, and at least some of the reference signal resources have an associated relationship established according to a preset rule or an associated relationship indicated by the associated relationship between the frequency domain units;
[0028] S130. Configure preset resource attributes for multiple reference signal resources with an associated relationship.
[0029] The frequency domain units are a continuous segment of frequency domain resources. These frequency domain units in the frequency domain unit set can be continuous or discontinuous in the frequency domain. There is an associated relationship between the frequency domain units. This associated relationship between the frequency domain units can be that when configuring the frequency domain unit set, it is indicated that two frequency domain units are related, and at this time, the reference signal resources respectively configured for these two frequency domain units have an associated relationship. The associated relationship between the frequency domain units can also be that after the reference signal resources configured within the frequency domain unit have an associated relationship, the frequency domain units corresponding to the reference signal resources with an associated relationship have an associated relationship. Moreover, if two frequency domain units are indicated to be related, then these two frequency domain units can be configured with the same reference signal resource pool. For multiple reference signal resources with an associated relationship, they need to have the same or corresponding attributes in some characteristics to facilitate estimating channel characteristics. The preset resource attributes of the reference signal resources can include at least one of a preset frequency domain characteristic, a preset time domain characteristic, a preset power characteristic, and a preset spatial characteristic, or can include the relevant attributes of the frequency band resources occupied by the reference signal resources.
[0030] After establishing the association relationship between reference signal resources, the channel characteristics can be jointly estimated using the reference signal resources with the association relationship. For example, for the estimation of the first path position, the bandwidth of the signal can be increased, thereby improving the time resolution and further improving the accuracy of the first path position estimation.
[0031] In one implementation, corresponding reference signal resource pools are configured for multiple frequency domain units, including:
[0032] A corresponding reference signal resource pool is configured for each frequency domain unit, where the reference signal resource pool is configured to include multiple reference signal resources; or, it includes multiple reference signal resource sets, and the reference signal resource set includes multiple reference signal resources; the architecture of the frequency domain unit and the reference signal resource pool is as Figure 2 shown.
[0033] For multiple reference signal resources belonging to different reference signal resource pools, the association relationship between the reference signal resources is determined by one of the following methods:
[0034] Establish the association relationship through the sequence numbers of the reference signal sets where the multiple reference signal resources are located;
[0035] Establish the association relationship through the sequence numbers of the multiple reference signal resources;
[0036] Establish the association relationship through the configuration information for determining the power control of the multiple reference signal resources;
[0037] Establish the association relationship through the configuration information for determining the spatial filter or spatial relationship of the multiple reference signal resources.
[0038] Among them, multiple reference signal resources with an association relationship should belong to different reference signal resource pools, that is, they are located in different frequency domain units. If the reference signal resource pool is configured to include multiple reference signal resources, an association relationship is established between multiple reference signal resources with the same sequence number in different reference signal resource pools. If the reference signal resource pool is configured to include multiple reference signal resource sets, and the reference signal resource set includes multiple reference signal resources, an association relationship is established between multiple reference signal sets with the same sequence number in different reference signal resource pools. If, in different reference signal resource pools, an association relationship is established between multiple reference signal resources with the same configuration information for determining the power control of the multiple reference signal resources, the configuration information for determining the power control can be the configuration information used for determining the path loss. If, in different reference signal resource pools, an association relationship is established between reference signal resources with the same configuration information for determining the spatial filter or spatial relationship of the multiple reference signal resources.
[0039] In this implementation, preset resource attributes are configured for multiple reference signal resources with an association relationship, including:
[0040] Configure at least one of a preset frequency domain characteristic, a preset time domain characteristic, a preset power characteristic, and a preset spatial characteristic for multiple reference signal resources having an association relationship.
[0041] Among them, configuring a preset frequency domain characteristic for multiple reference signal resources having an association relationship includes at least one of the following methods:
[0042] Independently configure the starting position of the frequency domain of each reference signal resource;
[0043] Independently configure the bandwidth size of each reference signal resource;
[0044] Independently configure the comb configuration of each reference signal resource;
[0045] Independently configure the frequency offset of each reference signal resource within a resource block (RB).
[0046] Among them, configuring a preset time domain characteristic for multiple reference signal resources having an association relationship includes at least one of the following methods:
[0047] Configure the time domain behaviors of multiple reference signal resources having an association relationship to be consistent;
[0048] Configure the time interval between the time domain transmissions of multiple reference signal resources having an association relationship within a preset time.
[0049] Among them, configuring the time domain behaviors of multiple reference signal resources having an association relationship to be consistent includes at least one of the following methods:
[0050] Configure that multiple reference signal resources having an association relationship are all periodically transmitted and have the same transmission period;
[0051] Configure that multiple reference signal resources having an association relationship are all semi-persistently transmitted and have the same transmission period;
[0052] Configure that multiple reference signal resources having an association relationship are all aperiodically transmitted.
[0053] Among them, configuring the time interval between the time domain transmissions of multiple reference signal resources having an association relationship within a preset time includes at least one of the following methods:
[0054] Configure that multiple reference signal resources having an association relationship transmit signals in the same time slot;
[0055] Configure that the transmission time interval of multiple reference signal resources having an association relationship is not greater than a preset time unit.
[0056] Among them, preset power characteristics are configured for multiple reference signal resources having an association relationship, including at least one of the following methods:
[0057] Configure multiple reference signal resources having an association relationship to be associated with the same reference signal for calculating path loss;
[0058] Configure multiple reference signal resources having an association relationship, and the transmission power of each resource element (RE) is the same;
[0059] Configure multiple reference signal resources having an association relationship. For any RE, the sum of the powers of multiple symbols within a time slot is the same;
[0060] Configure multiple reference signal resources having an association relationship and perform dynamic power adjustment simultaneously.
[0061] Among them, preset spatial characteristics are configured for multiple reference signal resources having an association relationship, including at least one of the following methods:
[0062] Configure multiple reference signal resources having an association relationship to use the same spatial filter or spatial relationship during transmission;
[0063] Configure multiple reference signal resources having an association relationship and update the spatial filter or spatial relationship semi-statically or dynamically simultaneously.
[0064] Multiple reference signal resources having an association relationship configured based on the above method can be used to jointly estimate at least one of the following channel characteristics:
[0065] Channel impulse response, reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), first path position, reference signal time difference (RSTD), receive and transmit reference signal time difference (Rx-Tx time difference), delay spread, signal receiving angle, signal receiving angle spread, Doppler and Doppler spread.
[0066] The base station can send the reference signal resources configured in the above implementation manner to the user terminal. The user terminal estimates the channel characteristics using the reference signal resources and feeds them back to the base station or a certain entity in the core network. The feedback operation of the user terminal includes at least one of the following feedback contents:
[0067] For multiple reference signal resources having an association relationship, only feedback one channel impulse response;
[0068] For multiple reference signal resources with an association relationship, only one RSRP needs to be fed back;
[0069] For multiple reference signal resources with an association relationship, only one RSRQ needs to be fed back;
[0070] For multiple reference signal resources with an association relationship, only one first path position needs to be fed back;
[0071] When multiple reference signal resources with an association relationship are used to calculate the reference signal time difference, the reference signals of the multiple reference signal resources with an association relationship are equivalent to one reference signal. The reference signal time difference refers to the time difference between receiving two different reference signals.
[0072] When multiple reference signal resources with an association relationship are used to calculate the time difference between receiving and sending reference signals, the reference signals of the multiple reference signal resources with an association relationship are equivalent to one reference signal. The time difference between receiving and sending reference signals refers to the time difference between the receiving moment of one reference signal and the sending moment of another reference signal.
[0073] For multiple reference signal resources with an association relationship, only one delay spread needs to be fed back;
[0074] For multiple reference signal resources with an association relationship, only one signal reception angle needs to be fed back;
[0075] For multiple reference signal resources with an association relationship, only one signal reception angle spread needs to be fed back;
[0076] For multiple reference signal resources with an association relationship, only one Doppler needs to be fed back;
[0077] For multiple reference signal resources with an association relationship, only one Doppler spread needs to be fed back.
[0078] The base station can send the reference signal resources configured in the above implementation manner to the user terminal. The user terminal sends the reference signal resources, and the base station estimates the channel characteristics using the reference signal resources and feeds them back to another base station or an entity in the core network. The feedback operation of the base station includes at least one of the following feedback contents:
[0079] For multiple reference signal resources with an association relationship, only one channel impulse response needs to be fed back;
[0080] For multiple reference signal resources with an association relationship, only one RSRP needs to be fed back;
[0081] For multiple reference signal resources with an association relationship, only one RSRQ needs to be fed back;
[0082] For multiple reference signal resources with an association relationship, only one first path position needs to be fed back;
[0083] Multiple reference signal resources with an associated relationship, when used to calculate the reference signal time difference, the reference signals of the multiple reference signal resources with an associated relationship are equivalent to one reference signal. The reference signal time difference refers to the time difference between receiving two different reference signals.
[0084] Multiple reference signal resources with an associated relationship, when used to calculate the time difference between receiving and transmitting reference signals, the reference signals of the multiple reference signal resources with an associated relationship are equivalent to one reference signal. The time difference between receiving and transmitting reference signals refers to the time difference between the receiving moment of one reference signal and the transmitting moment of another reference signal.
[0085] Multiple reference signal resources with an associated relationship only need to feedback one delay spread;
[0086] Multiple reference signal resources with an associated relationship only need to feedback one signal reception angle;
[0087] Multiple reference signal resources with an associated relationship only need to feedback one signal reception angle spread;
[0088] Multiple reference signal resources with an associated relationship only need to feedback one Doppler;
[0089] Multiple reference signal resources with an associated relationship only need to feedback one Doppler spread.
[0090] In one implementation, corresponding reference signal resource pools are configured for multiple frequency domain units, including:
[0091] One reference signal resource pool is configured for all frequency domain units, where the reference signal resource pool includes multiple reference signal resources; the architecture of the frequency domain unit and the reference signal resource pool is as Figure 3 shown.
[0092] The frequency band resources occupied by the reference signal resources are configured in one of the following ways:
[0093] Only configure the frequency domain start position of one frequency band resource and the corresponding bandwidth size;
[0094] For each frequency domain unit with an associated relationship, configure the start position of one frequency band resource and the corresponding bandwidth size respectively.
[0095] Among them, if only the frequency domain start position of one frequency band resource and the corresponding bandwidth size are configured, the sequence for transmitting the reference signal resources at least includes one of the following characteristics:
[0096] The sequence is a Zadoff-Chu (ZC) sequence, where the sequence length can be determined by at least one of the bandwidth size, subcarrier spacing, and comb configuration;
[0097] The sequence is an m-sequence (maximum length linear shift register sequence), where the sequence length can be determined by at least one of the bandwidth size, subcarrier spacing, and comb configuration;
[0098] Configure some of the frequency domain resources within the frequency domain range included in the frequency band resource not to transmit the sequence. Since the frequency domain units transmitting signals within the frequency band resource can be discontinuous, some frequency domain units do not have signal transmission. Correspondingly, the RBs corresponding to these frequency domain units without signal transmission are vacant.
[0099] Wherein, if the starting position of a frequency band resource and the corresponding bandwidth size are respectively configured for each frequency domain unit having an association relationship, the sequence transmitting the reference signal resource includes at least one of the following characteristics:
[0100] The sequence is a plurality of ZC sequences, where the plurality of ZC sequences correspond one-to-one to the plurality of frequency domain units having an association relationship, and each frequency domain unit can independently configure the cyclic shift amount of the sequence. The sequence length of each ZC sequence can be determined by at least one of the bandwidth size configured for the corresponding frequency domain unit, the subcarrier spacing configured for the corresponding frequency domain unit, and the comb configuration of the corresponding frequency domain unit;
[0101] The sequence is a plurality of m-sequences, where the plurality of m-sequences correspond one-to-one to the plurality of frequency domain units having an association relationship, and each frequency domain unit can configure the initialization seed of the sequence. The sequence length of each m-sequence can be determined by at least one of the bandwidth size configured for the corresponding frequency domain unit, the subcarrier spacing configured for the corresponding frequency domain unit, and the comb configuration of the corresponding frequency domain unit;
[0102] Within each frequency domain unit, the frequency offset within one RB is different;
[0103] The comb configuration within each frequency domain unit is different;
[0104] The subcarrier spacing within each frequency domain unit is different.
[0105] Based on the reference signal resource configured by the above method, its frequency band resource includes a plurality of frequency domain units and can be used to jointly estimate at least one of the following channel characteristics:
[0106] Channel impulse response, reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), first path position, reference signal time difference, receiving and transmitting reference signal time difference, delay spread, signal receiving angle, signal receiving angle spread, Doppler, and Doppler spread.
[0107] The base station may send the reference signal resources configured in the above implementation manner to the user terminal, and the user terminal estimates the channel characteristics based on the reference signal resources and feeds them back to the base station or a certain entity in the core network.
[0108] The base station may send the reference signal resources configured in the above implementation manner to the user terminal, and the user terminal sends the reference signal resources, and the base station estimates the channel characteristics based on the reference signal resources and feeds them back to other base stations or a certain entity in the core network.
[0109] In the embodiments of the present application, Figure 4 A schematic structural diagram of a configuration device for reference signal resources is shown. The configuration device 400 for reference signal resources includes:
[0110] A frequency domain unit configuration module 410, configured to configure a plurality of frequency domain units into a frequency domain unit set, where the frequency domain units are frequency domain resources in a preset frequency band;
[0111] A reference signal resource pool configuration module 420, configured to configure corresponding reference signal resource pools for a plurality of the frequency domain units, where each reference signal resource pool includes a plurality of reference signal resources, and at least some of the reference signal resources have an association relationship established according to a preset rule or an association relationship indicated by the association relationship between the frequency domain units;
[0112] A resource attribute configuration module 430, configured to configure preset resource attributes for a plurality of the reference signal resources having an association relationship.
[0113] In one implementation manner, the reference signal resource pool configuration module 420 is specifically configured to:
[0114] Configure a corresponding reference signal resource pool for each frequency domain unit, where the reference signal resource pool is configured to include a plurality of reference signal resources; or, include a plurality of reference signal resource sets, and each reference signal resource set includes a plurality of reference signal resources.
[0115] For a plurality of reference signal resources belonging to different reference signal resource pools, the association relationship between the reference signal resources is determined by one of the following methods:
[0116] Establish an association relationship through the serial numbers of the reference signal sets where the plurality of reference signal resources are located;
[0117] Establish an association relationship through the serial numbers of the plurality of reference signal resources;
[0118] Establish an association relationship through the configuration information for determining the power control of the plurality of reference signal resources;
[0119] An association relationship is established through configuration information for determining a spatial filter or a spatial relationship of multiple reference signal resources.
[0120] In this implementation manner, the resource attribute configuration module 430 is specifically configured to:
[0121] Configure at least one of a preset frequency domain characteristic, a preset time domain characteristic, a preset power characteristic, and a preset spatial characteristic for multiple reference signal resources having an association relationship.
[0122] Among them, configuring a preset frequency domain characteristic for multiple reference signal resources having an association relationship includes at least one of the following manners:
[0123] Independently configure the starting position of the frequency domain of each reference signal resource;
[0124] Independently configure the bandwidth size of each reference signal resource;
[0125] Independently configure the comb configuration of each reference signal resource;
[0126] Independently configure the frequency offset of each reference signal resource within a resource block (RB).
[0127] Among them, configuring a preset time domain characteristic for multiple reference signal resources having an association relationship includes at least one of the following manners:
[0128] Configure the time domain behaviors of multiple reference signal resources having an association relationship to be consistent;
[0129] Configure the time interval between time domain transmissions of multiple reference signal resources having an association relationship within a preset time.
[0130] Among them, configuring the time domain behaviors of multiple reference signal resources having an association relationship to be consistent includes at least one of the following manners:
[0131] Configure that multiple reference signal resources having an association relationship are all periodically transmitted and have the same transmission period;
[0132] Configure that multiple reference signal resources having an association relationship are all semi-persistently transmitted and have the same transmission period;
[0133] Configure that multiple reference signal resources having an association relationship are all non-periodically transmitted.
[0134] Among them, configuring the time interval between time domain transmissions of multiple reference signal resources having an association relationship within a preset time includes at least one of the following manners:
[0135] Configure that multiple reference signal resources having an association relationship transmit signals in the same time slot;
[0136] Configure the transmission time intervals of multiple reference signal resources with an association relationship to be no greater than a preset time unit.
[0137] Among them, configuring a preset power characteristic for multiple reference signal resources with an association relationship includes at least one of the following methods:
[0138] Configure multiple reference signal resources with an association relationship to be associated with the same reference signal for calculating path loss;
[0139] Configure multiple reference signal resources with an association relationship so that the transmission power of each resource element (RE) is the same;
[0140] Configure multiple reference signal resources with an association relationship so that for any RE, the sum of the powers of multiple symbols within a time slot is the same;
[0141] Configure multiple reference signal resources with an association relationship to perform dynamic power adjustment simultaneously.
[0142] Among them, configuring a preset spatial characteristic for multiple reference signal resources with an association relationship includes at least one of the following methods:
[0143] Configure multiple reference signal resources with an association relationship to use the same spatial filter or spatial relationship during transmission;
[0144] Configure multiple reference signal resources with an association relationship to update the spatial filter or spatial relationship semi-statically or dynamically simultaneously.
[0145] In one implementation, the reference signal resource pool configuration module 420 is specifically used for:
[0146] Configure a reference signal resource pool for all frequency domain units, where the reference signal resource pool includes multiple reference signal resources.
[0147] Configure the frequency band resources occupied by the reference signal resources through one of the following methods:
[0148] Only configure the starting position of the frequency domain of one frequency band resource and the corresponding bandwidth size;
[0149] Configure the starting position of a frequency band resource and the corresponding bandwidth size for each frequency domain unit with an association relationship respectively.
[0150] Among them, if only the starting position of the frequency domain of one frequency band resource and the corresponding bandwidth size are configured, the sequence for transmitting the reference signal resources includes at least one of the following characteristics:
[0151] The sequence is a Zadoff-Chu (ZC) sequence, and the sequence length is determined by at least one of the bandwidth size, subcarrier spacing, and comb configuration;
[0152] The sequence is an m-sequence (maximum length linear shift register sequence), and the sequence length is determined by at least one of the bandwidth size, subcarrier spacing, and comb configuration.
[0153] Wherein, if the start position of a frequency band resource and the corresponding bandwidth size are respectively configured for each frequency domain unit having an association relationship, the sequence of the transmission reference signal resource includes at least one of the following features:
[0154] The sequence is a plurality of ZC sequences. Among them, the plurality of ZC sequences correspond one-to-one to the plurality of frequency domain units having an association relationship, and each frequency domain unit can independently configure the cyclic shift amount of the sequence. The sequence length of each ZC sequence can be determined by at least one of the bandwidth size configured for the corresponding frequency domain unit, the subcarrier spacing configured for the corresponding frequency domain unit, and the comb configuration of the corresponding frequency domain unit;
[0155] The sequence is a plurality of m-sequences. Among them, the plurality of m-sequences correspond one-to-one to the plurality of frequency domain units having an association relationship, and each frequency domain unit can configure the initialization seed of the sequence. The sequence length of each m-sequence can be determined by at least one of the bandwidth size configured for the corresponding frequency domain unit, the subcarrier spacing configured for the corresponding frequency domain unit, and the comb configuration of the corresponding frequency domain unit;
[0156] Within each frequency domain unit, the frequency offset within one RB is different;
[0157] The comb configuration within each frequency domain unit is different;
[0158] The subcarrier spacing within each frequency domain unit is different.
[0159] Figure 5 It is a schematic structural diagram of a device provided by an embodiment of the present application. As Figure 5 shown, the device provided by the present application includes: a processor 510 and a memory 520. The number of processors 510 in this device can be one or more, Figure 5 Taking one processor 510 as an example. The number of memories 520 in this device can be one or more, Figure 5 Taking one memory 520 as an example. The processor 510 and the memory 520 of this device can be connected through a bus or other means, Figure 5 Taking the connection through a bus as an example.
[0160] The memory 520, being a computer-readable storage medium, can be configured to store software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the devices in any embodiment of the present application (for example, the frequency-domain unit configuration module, the reference signal resource pool configuration module, and the resource attribute configuration module in the configuration device of the reference signal resource). The memory 520 can include a program storage area and a data storage area. Among them, the program storage area can store an operating system and application programs required for at least one function; the data storage area can store data created according to the use of the device, etc. In addition, the memory 520 can include high-speed random access memory and can also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some instances, the memory 520 can further include a memory remotely set relative to the processor 510, and these remote memories can be connected to the device through a network. Examples of the above network include but are not limited to the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.
[0161] The device provided above can be configured to execute the reference signal resource configuration method provided in any of the above embodiments, and has corresponding functions and effects.
[0162] An embodiment of the present application further provides a storage medium containing computer-executable instructions. The computer-executable instructions are used to execute a reference signal resource configuration method when executed by a computer processor. The method includes: configuring a plurality of frequency-domain units as a set of frequency-domain units, where the frequency-domain units are frequency-domain resources in a preset frequency band; configuring corresponding reference signal resource pools for the plurality of frequency-domain units, where the reference signal resource pools include a plurality of reference signal resources, and at least some of the reference signal resources have an association relationship established according to a preset rule or an association relationship indicated by the association relationship between the frequency-domain units; and configuring preset resource attributes for the plurality of reference signal resources having an association relationship.
[0163] As described above, the above are only exemplary embodiments of the present application and are not used to limit the protection scope of the present application.
[0164] Those skilled in the art should understand that the term user terminal covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable network browser, or a vehicle-mounted mobile station.
[0165] Generally speaking, various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. For example, some aspects can be implemented in hardware, while other aspects can be implemented in firmware or software that can be executed by a controller, a microprocessor, or other computing devices, although the present application is not limited thereto.
[0166] Embodiments of the present application can be implemented by a data processor of a mobile device executing computer program instructions, for example, in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions can be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state-setting data, or source code or object code written in any combination of one or more programming languages.
[0167] Any block diagram of a logical process in the drawings of the present application can represent program steps, or can represent interconnected logical circuits, modules, and functions, or can represent a combination of program steps and logical circuits, modules, and functions. The computer program can be stored in a memory. The memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random access memory (RAM), optical memory devices and systems (Digital Versatile Disc DVD or CD-ROM), etc. The computer-readable medium can include non-transitory storage media. The data processor can be of any type suitable for the local technical environment, such as, but not limited to, general-purpose computers, special-purpose computers, microprocessors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and processors based on multi-core processor architectures.
[0168] By way of illustrative and non-limiting examples, a detailed description of exemplary embodiments of the present application has been provided above. However, various modifications and adaptations of the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and the claims, without departing from the scope of the invention. Therefore, the proper scope of the invention will be determined according to the claims.
Claims
1. A method for configuring reference signal resources, characterized in that, Including: Configuring a plurality of frequency domain units as a set of frequency domain units, where the frequency domain units are frequency domain resources in a preset frequency band; Configuring corresponding reference signal resource pools for a plurality of the frequency domain units, where each reference signal resource pool includes a plurality of reference signal resources, and at least some of the reference signal resources have an association relationship established according to a preset rule or an association relationship indicated by the association relationship between the frequency domain units; Configuring preset resource attributes for a plurality of the reference signal resources having an association relationship; The configuring corresponding reference signal resource pools for a plurality of the frequency domain units includes: configuring a corresponding reference signal resource pool for each of the frequency domain units, where the reference signal resource pool is configured to include a plurality of reference signal resources; or including a plurality of reference signal resource sets, and each reference signal resource set includes a plurality of the reference signal resources; For a plurality of the reference signal resources belonging to different reference signal resource pools, the association relationship between the reference signal resources is determined by one of the following methods: Establishing an association relationship through the sequence numbers of the reference signal sets where the plurality of reference signal resources are located; Establishing an association relationship through the sequence numbers of the plurality of reference signal resources; Establishing an association relationship through the configuration information for determining the power control of the plurality of reference signal resources; Establishing an association relationship through the configuration information for determining the spatial filter or spatial relationship of the plurality of reference signal resources.
2. The method according to claim 1, wherein The configuring preset resource attributes for a plurality of the reference signal resources having an association relationship includes: Configuring at least one of a preset frequency domain feature, a preset time domain feature, a preset power feature, and a preset spatial feature for a plurality of the reference signal resources having an association relationship.
3. The method according to claim 2, wherein Configuring the preset frequency domain feature for a plurality of the reference signal resources having an association relationship includes at least one of the following methods: Independently configuring the starting position in the frequency domain of each reference signal resource; Independently configuring the bandwidth size of each reference signal resource; Independently configuring the comb configuration of each reference signal resource; Independently configuring the frequency offset of each reference signal resource within a resource block (RB).
4. The method according to claim 2, wherein Configuring the preset time domain feature for a plurality of the reference signal resources having an association relationship includes at least one of the following methods: Configuring the time domain behaviors of a plurality of the reference signal resources having an association relationship to be consistent; Configuring the time interval between the time domain transmissions of a plurality of the reference signal resources having an association relationship within a preset time.
5. The method according to claim 4, wherein The configuring the time domain behaviors of a plurality of the reference signal resources having an association relationship to be consistent includes at least one of the following methods: Configuring that a plurality of the reference signal resources having an association relationship are all periodically transmitted and have the same transmission period; Configuring that a plurality of the reference signal resources having an association relationship are all semi-persistently transmitted and have the same transmission period; Configuring that a plurality of the reference signal resources having an association relationship are all non-periodically transmitted.
6. The method according to claim 4, characterized in that, The configuring the time interval between the time domain transmissions of a plurality of the reference signal resources having an association relationship within a preset time includes at least one of the following methods: Configure multiple of the reference signal resources with an association relationship to transmit signals in the same time slot; Configure the transmission time interval of multiple of the reference signal resources with an association relationship to be no greater than a preset time unit.
7. The method according to claim 2, wherein Configure the preset power characteristics for multiple of the reference signal resources with an association relationship, including at least one of the following methods: Configure multiple of the reference signal resources with an association relationship to be associated with the same reference signal for calculating path loss; Configure multiple of the reference signal resources with an association relationship such that the transmission power of each resource element (RE) is the same; Configure multiple of the reference signal resources with an association relationship such that for any one RE, the sum of the powers of multiple symbols within a time slot is the same; Configure multiple of the reference signal resources with an association relationship to perform dynamic power adjustment simultaneously.
8. The method according to claim 2, wherein Configure the preset spatial characteristics for multiple of the reference signal resources with an association relationship, including at least one of the following methods: Configure multiple of the reference signal resources with an association relationship to use the same spatial filter or spatial relationship during transmission; Configure multiple of the reference signal resources with an association relationship to update the spatial filter or spatial relationship semi-statically or dynamically simultaneously.
9. The method according to claim 1, wherein The configuration of corresponding reference signal resource pools for multiple of the frequency domain units includes: Configure one reference signal resource pool for all of the frequency domain units, where the reference signal resource pool includes multiple reference signal resources; Configure the frequency band resources occupied by the reference signal resources through one of the following methods: Only configure the frequency domain start position and the corresponding bandwidth size of one frequency band resource; Configure the start position and the corresponding bandwidth size of one frequency band resource for each of the frequency domain units with an association relationship respectively.
10. The method according to claim 9, characterized in that, If only the frequency domain start position and the corresponding bandwidth size of one frequency band resource are configured, the sequence for transmitting the reference signal resources includes at least one of the following characteristics: The sequence is a ZC sequence; The sequence is an m sequence; Configure some frequency domain resources within the frequency domain range included in the frequency band resource not to transmit the sequence.
11. The method according to claim 9, wherein If the start position and the corresponding bandwidth size of one frequency band resource are configured for each of the frequency domain units with an association relationship respectively, the sequence for transmitting the reference signal resources includes at least one of the following characteristics: The sequence is multiple ZC sequences, where the multiple ZC sequences correspond one-to-one to the multiple frequency domain units with an association relationship; The sequence is multiple m sequences, where the multiple m sequences correspond one-to-one to the multiple frequency domain units with an association relationship; Within each of the frequency domain units, the frequency offset within one resource block (RB) is different; The comb configuration within each of the frequency domain units is different; The subcarrier spacing within each of the frequency domain units is different.
12. An apparatus for configuring reference signal resources, characterized in that, Includes: A frequency domain unit configuration module, configured to configure multiple frequency domain units into a frequency domain unit set, where the frequency domain units are frequency domain resources of a preset frequency band; A reference signal resource pool configuration module, configured to configure corresponding reference signal resource pools for a plurality of the frequency domain units, wherein each of the reference signal resource pools includes a plurality of reference signal resources, and at least some of the reference signal resources have an association relationship established according to a preset rule or an association relationship indicated by an association relationship between the frequency domain units; A resource attribute configuration module, configured to configure preset resource attributes for a plurality of the reference signal resources having an association relationship; A reference signal resource pool configuration module, configured to configure a corresponding reference signal resource pool for each of the frequency domain units, wherein the reference signal resource pool is configured to include a plurality of reference signal resources; or includes a plurality of reference signal resource sets, and each of the reference signal resource sets includes a plurality of the reference signal resources; For a plurality of the reference signal resources belonging to different reference signal resource pools, the association relationship between the reference signal resources is determined by one of the following methods: Establishing an association relationship through the sequence numbers of the reference signal sets where the plurality of reference signal resources are located; Establishing an association relationship through the sequence numbers of the plurality of reference signal resources; Establishing an association relationship through configuration information for determining power control of the plurality of reference signal resources; Establishing an association relationship through configuration information for determining spatial filters or spatial relationships of the plurality of reference signal resources.
13. A device, characterized in that, Comprising: A memory, and one or more processors; The memory is configured to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1-11.
14. A storage medium, characterized in that, The storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1-11 is implemented.
Citation Information
Patent Citations
Method and apparatus for improving precoding resource block groups in a wireless communication system
EP3393073A2