CN113271662B - Time-frequency resource configuration method, system, electronic equipment and medium of reference signal - Google Patents

Time-frequency resource configuration method, system, electronic equipment and medium of reference signal Download PDF

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Publication number
CN113271662B
CN113271662B CN202010093379.0A CN202010093379A CN113271662B CN 113271662 B CN113271662 B CN 113271662B CN 202010093379 A CN202010093379 A CN 202010093379A CN 113271662 B CN113271662 B CN 113271662B
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reference signal
symbol
time
resources
frequency resource
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CN113271662A (en
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周化雨
潘振岗
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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Priority to PCT/CN2021/075640 priority patent/WO2021160046A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a time-frequency resource allocation method, a system, electronic equipment and a medium of a reference signal, wherein the time-frequency resource allocation method of the reference signal comprises the following steps: and determining whether the time-frequency resource of the reference signal is effective or not according to the configuration information. The invention realizes the optimization of the system overhead.

Description

Time-frequency resource configuration method, system, electronic equipment and medium of reference signal
Technical Field
The invention belongs to the technical field of time-frequency resource allocation of reference signals, and particularly relates to a time-frequency resource allocation method, a system, electronic equipment and a medium of the reference signals.
Background
When a UE (user equipment) is in an Idle mode (RRC Idle), the UE needs to monitor paging PDCCH (Physical Downlink Control Channel ). In general, the UE needs to determine a Paging PDCCH listening Occasion through PF (Paging Frame), PO (Paging Occasion) and Paging search space set (Paging search space set) configurations (Paging PDCCH monitoring Occasion). In 5G NR (a communication standard), the UE relies on a synchronization signal block for AGC (automatic gain control) adjustment, channel tracking (including time-frequency tracking and/or time-frequency synchronization, etc.) and measurement. Since the sync block burst is not present in every subframe or every slot, the sync block burst is transmitted at a certain time period, e.g., 5 ms, 10 ms, 20 ms, etc., generally, the UE needs to wake up at least before the last sync block burst before the PO and use the last sync block burst for AGC adjustment and channel tracking, or for AGC adjustment, channel tracking and measurement. When the UE experiences long sleep, e.g., the interval between two POs that the UE needs to monitor due to PO configuration is large, the UE may need to wake up before the last two synchronization signal block bursts before the POs. Performing AGC adjustment by using one synchronous signal block burst, and performing channel tracking by using the other synchronous signal block burst; alternatively, one synchronization signal block burst is used for AGC adjustment and channel tracking, and another synchronization signal block burst is used for measurement. The prior art has larger system overhead.
Disclosure of Invention
The invention aims to overcome the defect of high system overhead in the prior art and provides a time-frequency resource allocation method, a system, electronic equipment and a medium of a reference signal.
The invention solves the technical problems by the following technical scheme:
the invention provides a time-frequency resource allocation method of a reference signal, which comprises the following steps:
and determining whether the time-frequency resource of the reference signal is effective or not according to the configuration information.
Optionally, a reference signal resource or a set of reference resources is determined.
Optionally, a plurality of reference signal resources or a set of reference resources are determined.
Optionally, the plurality of reference signal resources or the set of reference resources have the same period.
Optionally, the plurality of reference signal resources or reference resource sets have the same bandwidth.
Optionally, the plurality of reference signal resources or the reference resource sets have the same resource block position.
Optionally, the plurality of reference signal resources or reference resource sets have the same slot.
Optionally, one reference signal resource has a preset subcarrier starting position.
Optionally, the plurality of reference signal resources have a preset lowest subcarrier starting position.
Optionally, a reference signal resource has a predetermined symbol position or symbol start position.
Optionally, the plurality of reference signal resources have a predetermined minimum symbol position or symbol start position.
Optionally, one reference signal resource set has a preset subcarrier starting position.
Optionally, one reference signal resource set has one preset symbol position or symbol start position.
Optionally, the reference signal resources within one reference signal resource set have the same subcarrier starting position.
Optionally, the reference signal resources within one set of reference signal resources have the same symbol position or symbol start position.
Optionally, the predetermined symbol positions are symbols {4,8}, symbols {5,9}, symbols {6,10}, symbols {7,11}.
Optionally, the plurality of reference signal resource sets have a preset lowest subcarrier starting position.
Optionally, the plurality of reference signal resource sets have a preset minimum symbol position or symbol start position.
Optionally, the reference signal is determined to be valid after a first time instant that precedes and is a first preset offset from the paging frame or paging occasion or first paging PDCCH (Physical Downlink Control Channel ) listening occasion.
Optionally, the reference signal is determined to be valid after a second time, where the second time is after the paging indication physical downlink control channel and is a second preset offset from the paging indication PDCCH.
Optionally, the time-frequency resource allocation method of the reference signal further includes the following steps:
and acquiring paging indication information through the paging indication PDCCH.
Optionally, the time-frequency resource allocation method of the reference signal further includes the following steps:
if the paging indication information indicates that the reference signal is valid, the reference signal is determined to be valid.
Optionally, the time-frequency resource allocation method of the reference signal further includes the following steps:
if the paging indication information indicates that the paging PDCCH needs to be monitored, the reference signal is determined to be valid.
The invention also provides a time-frequency resource allocation system of the reference signal, which comprises a signal determining unit;
the signal determining unit is used for determining whether the time-frequency resource of the reference signal is effective or not according to the configuration information.
Optionally, a reference signal resource or a set of reference resources is determined.
Optionally, a plurality of reference signal resources or a set of reference resources are determined.
Optionally, the plurality of reference signal resources or the set of reference resources have the same period.
Optionally, the plurality of reference signal resources or reference resource sets have the same bandwidth.
Optionally, the plurality of reference signal resources or the reference resource sets have the same resource block position.
Optionally, the plurality of reference signal resources or reference resource sets have the same slot.
Optionally, one reference signal resource has a preset subcarrier starting position.
Optionally, the plurality of reference signal resources have a preset lowest subcarrier starting position.
Optionally, a reference signal resource has a predetermined symbol position or symbol start position.
Optionally, the plurality of reference signal resources have a predetermined minimum symbol position or symbol start position.
Optionally, one reference signal resource set has a preset subcarrier starting position.
Optionally, one reference signal resource set has one preset symbol position or symbol start position.
Optionally, the reference signal resources within one reference signal resource set have the same subcarrier starting position.
Optionally, each reference signal resource within a set of reference signal resources has the same symbol position or symbol start position.
Optionally, the predetermined symbol positions are symbols {4,8}, symbols {5,9}, symbols {6,10}, symbols {7,11}.
Optionally, the plurality of reference signal resource sets have a preset lowest subcarrier starting position.
Optionally, the plurality of reference signal resource sets have a preset minimum symbol position or symbol start position.
Optionally, the signal determining unit is further configured to determine that the reference signal is valid after a first time instant, the first time instant being before and at a first preset offset from a paging frame or paging occasion or a first paging PDCCH monitoring occasion.
Optionally, the reference signal is determined to be valid after a second time, where the second time is after the paging indication physical downlink control channel and is a second preset offset from the paging indication PDCCH.
Optionally, the signal determining unit is further configured to obtain paging indication information through the paging indication PDCCH.
Optionally, if the paging indication information indicates that the reference signal is valid, the signal determining unit is further configured to determine that the reference signal is valid.
Optionally, if the paging indication information indicates that the paging PDCCH needs to be monitored, the signal determining unit is further configured to determine that the reference signal is valid.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to realize the time-frequency resource allocation method of the reference signal.
The invention also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the steps of the time-frequency resource allocation method of the reference signal of the invention.
The invention has the positive progress effects that: the invention realizes the optimization of the system overhead.
Drawings
Fig. 1 is a flowchart of a time-frequency resource allocation method of a reference signal in embodiment 1 of the present invention.
Fig. 2 is a flowchart of a time-frequency resource allocation method of a reference signal according to embodiment 8 of the present invention.
Fig. 3 is a schematic structural diagram of an electronic device according to embodiment 9 of the present invention.
Fig. 4 is a schematic diagram of a time-frequency resource allocation system of a reference signal according to embodiment 11 of the present invention.
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
Example 1
The embodiment provides a time-frequency resource allocation method of a reference signal. Referring to fig. 1, the time-frequency resource allocation method of the reference signal includes the steps of:
step S101, acquiring configuration information.
Step S102, according to the configuration information, determining whether the time-frequency resource of the reference signal is valid or not.
In an alternative embodiment, in step S102, the time-frequency resources of the reference signal are determined according to the configuration information.
In another alternative embodiment, in step S102, it is determined whether the time-frequency resource of the reference signal is valid according to the configuration information.
Example 2
On the basis of embodiment 1, this embodiment provides a time-frequency resource allocation method of a reference signal.
As an alternative embodiment, in step S102, a plurality of reference signal resources or a set of reference signal resources is determined. In particular, multiple reference signal resources or sets of reference signal resources may constitute a reference signal burst (burst) corresponding to multiple reference signals transmitted on multiple beams. One reference signal may be transmitted on each beam. The plurality of Reference Signal resources constitute one Reference Signal burst, which is suitable for CSI-RS for mobility (channel state information-Reference Signal) or CSI-RS for RRM/RLM measurement (channel state information-Reference Signal), because generally one CSI-RS for mobility or CSI-RS for RRM/RLM measurement has one Reference Signal resource. Multiple sets of reference signal resources form one reference signal burst, suitable for a TRS (Tracking Reference Signal, tracking reference signals), since in general one TRS has one set of reference signal resources.
Example 3
On the basis of embodiment 1, this embodiment provides a time-frequency resource allocation method of a reference signal.
As an alternative embodiment, multiple reference signal resources or reference resource sets have the same periodicity. This may reduce the overhead of configuration signaling or reduce UE processing complexity.
As an alternative embodiment, multiple reference signal resources or reference resource sets have the same periodicity. This may reduce the overhead of configuration signaling or reduce UE processing complexity.
As an alternative embodiment, multiple reference signal resources or reference resource sets have the same bandwidth. This may reduce the overhead of configuration signaling or reduce UE processing complexity.
As an alternative embodiment, multiple reference signal resources or reference resource sets have the same resource block position. This may reduce the overhead of configuration signaling or reduce UE processing complexity.
As an alternative embodiment, multiple reference signal resources or reference resource sets have the same time slot. This may reduce the overhead of configuration signaling or reduce UE processing complexity.
Example 4
On the basis of embodiment 1, this embodiment provides a time-frequency resource allocation method of a reference signal. In this embodiment, a reference signal resource has a preset (predetermined, pre-defined or pre-set) subcarrier start position. Different synchronization signal blocks may correspond to different reference signal resources, suitable for CSI-RS for mobility or CSI-RS for RRM/RLM measurements. One synchronization signal block may correspond to one reference signal resource. For example, when one synchronization signal block burst contains 8 synchronization signal blocks, the synchronization signal block burst may be associated with 8 reference signal resources, each having a preset subcarrier starting position, so that different reference signal resources may be distinguished by different subcarrier starting positions.
As an alternative embodiment, the plurality of reference signal resources have a lowest preset subcarrier starting position. The plurality of reference signal resources take the lowest preset subcarrier starting position as a reference starting position, and the subcarrier starting position of each reference signal resource is the reference starting position plus an offset. At this time, a plurality of reference signal resources can be configured through one parameter, so that signaling overhead is reduced.
Example 5
On the basis of embodiment 1, this embodiment provides a time-frequency resource allocation method of a reference signal. In this embodiment, a reference signal resource has a predetermined symbol position or symbol start position. The symbol is an OFDM (Orthogonal Frequency Division Multiplexing ) symbol. Different synchronization signal blocks may correspond to different reference signal resources, suitable for CSI-RS for mobility or CSI-RS for RRM/RLM measurements. One synchronization signal block may correspond to one reference signal resource. For example, when one synchronization signal block burst contains 8 synchronization signal blocks, the synchronization signal block burst is associated with 8 reference signal resources, each having a preset symbol position or symbol start position, so that different reference signal resources can be distinguished by different symbol positions or symbol start positions.
As an alternative embodiment, the plurality of reference signal resources have a minimum preset symbol position or symbol start position. The minimum preset symbol position or symbol start is taken as a reference position or a reference start position by the plurality of reference signal resources, and the symbol position or the symbol start position of each reference signal resource is taken as the reference start position plus an offset. At this time, a plurality of reference signal resources can be configured through one parameter, so that signaling overhead is reduced.
Example 6
On the basis of embodiment 1, this embodiment provides a time-frequency resource allocation method of a reference signal. In this embodiment, a reference signal resource set has a preset subcarrier starting position. Different synchronization signal blocks may correspond to different sets of reference resources, suitable for TRS. One synchronization signal block may correspond to one reference resource set. For example, when one synchronization signal block burst contains 8 synchronization signal blocks, the synchronization signal block burst is associated with 8 reference signal resource sets, each reference signal resource set has a preset subcarrier starting position, so that different reference signal resource sets can be distinguished by different subcarrier starting positions.
As an alternative embodiment, the reference signal resources within one set of reference signal resources have the same subcarrier starting position. This may reduce the overhead of configuration signaling.
In an alternative embodiment, the plurality of reference signal resource sets have a lowest preset subcarrier starting position. The plurality of reference signal resource sets take the lowest preset subcarrier starting position as a reference starting position, and the subcarrier starting position of each reference signal resource set is the reference starting position plus an offset. At this time, multiple reference signal resource sets can be configured by one parameter, so that signaling overhead is reduced.
Example 7
On the basis of embodiment 1, this embodiment provides a time-frequency resource allocation method of a reference signal. In this embodiment, a reference signal resource set has a predetermined symbol position or symbol start position. The symbol is an OFDM symbol. Different synchronization signal blocks may correspond to different sets of reference resources, suitable for TRS (Tracking Reference Signal, tracking reference signals). One synchronization signal block may correspond to one reference resource set. For example, when one synchronization signal block burst contains 8 synchronization signal blocks, the synchronization signal block burst is associated with 8 reference signal resource sets, each reference signal resource set having a preset symbol position or symbol start position, so that different reference signal resource sets can be distinguished by different symbol positions or symbol start positions.
As an alternative embodiment, each reference signal resource within a set of reference signal resources has the same symbol position or symbol start position. This may reduce the overhead of configuration signaling.
As an alternative embodiment, one set of reference signal resources has 2 reference signal resources. Further, the 2 reference signal resources have different symbol positions.
As an alternative embodiment, the preset symbol positions are symbol {4,8}, symbol {5,9}, symbol {6,10}, symbol {7,11}; or, the preset symbol starting positions are symbol 4, symbol 5, symbol 6 and symbol 7. The numbers represent the symbol numbers or indexes of symbols within the slot, starting from 0. Thus there can be 4 reference signal resource sets within a slot by distinguishing between different symbol positions or symbol start positions. So that the resources can be more concentrated.
As an alternative embodiment, the preset symbol positions are symbol {0,4}, symbol {1,5}, symbol {2,6}, symbol {3,7}; or, the preset symbol starting position is symbol 0, symbol 1, symbol 2 and symbol 3. So that the resources can be more concentrated.
As an alternative embodiment, the preset symbol positions are symbols {6,10}, symbols {7,11}, symbols {8,12}, symbols {9,13}; or, the preset symbol starting positions are symbol 6, symbol 7, symbol 8 and symbol 9. So that the resources can be more concentrated.
As an alternative embodiment, the preset symbol start position is an arbitrary symbol. This is more flexible.
In an alternative embodiment, the plurality of reference signal resource sets have a minimum preset symbol position or symbol start position. The minimum preset symbol position or symbol start is taken as a reference position or reference start position by the plurality of reference signal resource sets, and the symbol position or the symbol start position of each reference signal resource set is taken as the reference start position plus an offset. At this time, multiple reference signal resource sets can be configured by one parameter, so that signaling overhead is reduced.
Example 8
On the basis of embodiment 1, this embodiment provides a time-frequency resource allocation method of a reference signal. In the present embodiment, in step S102, it is also determined that the reference signal is valid after the first time. The first time is a first preset offset before and a distance from the beginning of the paging frame or paging occasion or first paging PDCCH listening occasion. In this way, whether the reference signal is valid is related to the paging frame or paging occasion or the beginning of the first paging PDCCH listening occasion, signaling overhead may be reduced.
As an alternative embodiment, in step S102, it is also determined that the reference signal is valid after the second instant. The second moment is after the paging indication physical downlink control channel and the distance between the second moment and the paging indication PDCCH is a second preset offset.
In an alternative embodiment, referring to fig. 2, the method for configuring time-frequency resources of the reference signal further includes the following steps:
step S103, obtaining paging indication information through the paging indication PDCCH.
As an optional implementation manner, the time-frequency resource allocation method of the reference signal further includes the following steps:
step S104, if the paging indication information indicates that the reference signal is valid, the reference signal is determined to be valid.
As an optional implementation manner, the time-frequency resource allocation method of the reference signal further includes the following steps:
step S105, if the paging indication information indicates that the paging PDCCH needs to be monitored, the reference signal is determined to be valid.
And the UE acquires the paging indication information through the paging indication PDCCH. If the paging indication information indicates that the reference signal is valid, the UE determines that the reference signal is valid. If the paging indication information indicates that the UE needs to monitor the paging PDCCH, the UE determines that the reference signal is valid. Thus, whether the reference signal is valid may be determined by dynamic signaling (dynamic signaling), which may be downlink control information (Down Control Information, DCI) signaling.
Example 9
Fig. 3 is a schematic structural diagram of an electronic device according to the present embodiment. The electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the time-frequency resource allocation method of the reference signal of any one of embodiments 1 to 8 when executing the program. The electronic device 30 shown in fig. 3 is only an example and should not be construed as limiting the functionality and scope of use of embodiments of the present invention.
The electronic device 30 may be in the form of a general purpose computing device, which may be a server device, for example. Components of electronic device 30 may include, but are not limited to: the at least one processor 31, the at least one memory 32, a bus 33 connecting the different system components, including the memory 32 and the processor 31.
The bus 33 includes a data bus, an address bus, and a control bus.
Memory 32 may include volatile memory such as Random Access Memory (RAM) 321 and/or cache memory 322, and may further include Read Only Memory (ROM) 323.
Memory 32 may also include a program/utility 325 having a set (at least one) of program modules 324, such program modules 324 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.
The processor 31 executes various functional applications and data processing, such as the time-frequency resource allocation method of the reference signal of embodiment 1 of the present invention, by running a computer program stored in the memory 32.
The electronic device 30 may also communicate with one or more external devices 34 (e.g., keyboard, pointing device, etc.). Such communication may be through an input/output (I/O) interface 35. Also, model-generating device 30 may also communicate with one or more networks, such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet, via network adapter 36. As shown, network adapter 36 communicates with the other modules of model-generating device 30 via bus 33. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in connection with the model-generating device 30, including, but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, data backup storage systems, and the like.
It should be noted that although several units/modules or sub-units/modules of an electronic device are mentioned in the above detailed description, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more units/modules described above may be embodied in one unit/module in accordance with embodiments of the present invention. Conversely, the features and functions of one unit/module described above may be further divided into ones that are embodied by a plurality of units/modules.
Example 10
The present embodiment provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the time-frequency resource allocation method of the reference signal of any one of embodiments 1 to 8.
More specifically, among others, readable storage media may be employed including, but not limited to: portable disk, hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.
In a possible implementation manner, the present invention may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps of a time-frequency resource allocation method implementing the reference signal of any one of the embodiments 1 to 8, when said program product is run on the terminal device.
Wherein the program code for carrying out the invention may be written in any combination of one or more programming languages, which program code may execute entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on the remote device or entirely on the remote device.
Example 11
The embodiment provides a time-frequency resource allocation system of a reference signal. Referring to fig. 4, the time-frequency resource allocation system of the reference signal includes an information acquisition unit 201, a signal determination unit 202. The information acquisition unit 201 is configured to acquire configuration information; the signal determining unit 202 is configured to determine whether the time-frequency resource of the reference signal is valid or not according to the configuration information.
In an alternative embodiment, the signal determination unit 202 is configured to: and determining the resource of the reference signal according to the configuration information.
In another alternative embodiment, the signal determining unit 202 is configured to: and determining whether the resources of the reference signal are valid according to the configuration information.
Example 12
On the basis of embodiment 11, this embodiment provides a time-frequency resource allocation system for reference signals.
As an alternative embodiment, the signal determining unit 202 is configured to: a plurality of reference signal resources or a set of reference signal resources is determined. In particular, multiple reference signal resources or sets of reference signal resources may constitute a reference signal burst (burst) corresponding to multiple reference signals transmitted on multiple beams. One reference signal may be transmitted on each beam. The plurality of Reference Signal resources constitute one Reference Signal burst, which is suitable for CSI-RS for mobility (channel state information-Reference Signal) or CSI-RS for RRM/RLM measurement (channel state information-Reference Signal), because generally one CSI-RS for mobility or CSI-RS for RRM/RLM measurement has one Reference Signal resource. Multiple sets of reference signal resources form one reference signal burst, suitable for a TRS (Tracking Reference Signal, tracking reference signals), since in general one TRS has one set of reference signal resources.
Example 13
On the basis of embodiment 11, this embodiment provides a time-frequency resource allocation system for reference signals.
As an alternative embodiment, multiple reference signal resources or reference resource sets have the same periodicity. This may reduce the overhead of configuration signaling or reduce UE processing complexity.
As an alternative embodiment, multiple reference signal resources or reference resource sets have the same periodicity. This may reduce the overhead of configuration signaling or reduce UE processing complexity.
As an alternative embodiment, multiple reference signal resources or reference resource sets have the same bandwidth. This may reduce the overhead of configuration signaling or reduce UE processing complexity.
As an alternative embodiment, multiple reference signal resources or reference resource sets have the same resource block position. This may reduce the overhead of configuration signaling or reduce UE processing complexity.
As an alternative embodiment, multiple reference signal resources or reference resource sets have the same time slot. This may reduce the overhead of configuration signaling or reduce UE processing complexity.
Example 14
On the basis of embodiment 11, this embodiment provides a time-frequency resource allocation system for reference signals. In this embodiment, a reference signal resource has a preset (predetermined, pre-defined or pre-set) subcarrier start position. Different synchronization signal blocks may correspond to different reference signal resources, suitable for CSI-RS for mobility or CSI-RS for RRM/RLM measurements. One synchronization signal block may correspond to one reference signal resource. For example, when one synchronization signal block burst contains 8 synchronization signal blocks, the synchronization signal block burst may be associated with 8 reference signal resources, each having a preset subcarrier starting position, so that different reference signal resources may be distinguished by different subcarrier starting positions.
As an alternative embodiment, the plurality of reference signal resources have a lowest preset subcarrier starting position. The plurality of reference signal resources take the lowest preset subcarrier starting position as a reference starting position, and the subcarrier starting position of each reference signal resource is the reference starting position plus an offset. At this time, a plurality of reference signal resources can be configured through one parameter, so that signaling overhead is reduced.
Example 15
On the basis of embodiment 11, this embodiment provides a time-frequency resource allocation system for reference signals. In this embodiment, a reference signal resource has a predetermined symbol position or symbol start position. The symbol is an OFDM (Orthogonal Frequency Division Multiplexing ) symbol. Different synchronization signal blocks may correspond to different reference signal resources, suitable for CSI-RS for mobility or CSI-RS for RRM/RLM measurements. One synchronization signal block may correspond to one reference signal resource. For example, when one synchronization signal block burst contains 8 synchronization signal blocks, the synchronization signal block burst is associated with 8 reference signal resources, each having a preset symbol position or symbol start position, so that different reference signal resources can be distinguished by different symbol positions or symbol start positions.
As an alternative embodiment, the plurality of reference signal resources have a minimum preset symbol position or symbol start position. The minimum preset symbol position or symbol start is taken as a reference position or a reference start position by the plurality of reference signal resources, and the symbol position or the symbol start position of each reference signal resource is taken as the reference start position plus an offset. At this time, a plurality of reference signal resources can be configured through one parameter, so that signaling overhead is reduced.
Example 16
On the basis of embodiment 11, this embodiment provides a time-frequency resource allocation system for reference signals. In this embodiment, a reference signal resource set has a preset subcarrier starting position. Different synchronization signal blocks may correspond to different sets of reference resources, suitable for TRS. One synchronization signal block may correspond to one reference resource set. For example, when one synchronization signal block burst contains 8 synchronization signal blocks, the synchronization signal block burst is associated with 8 reference signal resource sets, each reference signal resource set has a preset subcarrier starting position, so that different reference signal resource sets can be distinguished by different subcarrier starting positions.
As an alternative embodiment, the reference signal resources within one set of reference signal resources have the same subcarrier starting position. This may reduce the overhead of configuration signaling.
In an alternative embodiment, the plurality of reference signal resource sets have a lowest preset subcarrier starting position. The plurality of reference signal resource sets take the lowest preset subcarrier starting position as a reference starting position, and the subcarrier starting position of each reference signal resource set is the reference starting position plus an offset. At this time, multiple reference signal resource sets can be configured by one parameter, so that signaling overhead is reduced.
Example 17
On the basis of embodiment 11, this embodiment provides a time-frequency resource allocation system for reference signals. In this embodiment, a reference signal resource set has a predetermined symbol position or symbol start position. The symbol is an OFDM symbol. Different synchronization signal blocks may correspond to different sets of reference resources, suitable for TRS (Tracking Reference Signal, tracking reference signals). One synchronization signal block may correspond to one reference resource set. For example, when one synchronization signal block burst contains 8 synchronization signal blocks, the synchronization signal block burst is associated with 8 reference signal resource sets, each reference signal resource set having a preset symbol position or symbol start position, so that different reference signal resource sets can be distinguished by different symbol positions or symbol start positions.
As an alternative embodiment, each reference signal resource within a set of reference signal resources has the same symbol position or symbol start position. This may reduce the overhead of configuration signaling.
As an alternative embodiment, one set of reference signal resources has 2 reference signal resources. Further, the 2 reference signal resources have different symbol positions.
As an alternative embodiment, the preset symbol positions are symbol {4,8}, symbol {5,9}, symbol {6,10}, symbol {7,11}; or, the preset symbol starting positions are symbol 4, symbol 5, symbol 6 and symbol 7. The numbers represent the symbol numbers or indexes of symbols within the slot, starting from 0. Thus there can be 4 reference signal resource sets within a slot by distinguishing between different symbol positions or symbol start positions. So that the resources can be more concentrated.
As an alternative embodiment, the preset symbol positions are symbol {0,4}, symbol {1,5}, symbol {2,6}, symbol {3,7}; or, the preset symbol starting position is symbol 0, symbol 1, symbol 2 and symbol 3. So that the resources can be more concentrated.
As an alternative embodiment, the preset symbol positions are symbols {6,10}, symbols {7,11}, symbols {8,12}, symbols {9,13}; or, the preset symbol starting positions are symbol 6, symbol 7, symbol 8 and symbol 9. So that the resources can be more concentrated.
As an alternative embodiment, the preset symbol start position is an arbitrary symbol. This is more flexible.
In an alternative embodiment, the plurality of reference signal resource sets have a minimum preset symbol position or symbol start position. The minimum preset symbol position or symbol start is taken as a reference position or reference start position by the plurality of reference signal resource sets, and the symbol position or the symbol start position of each reference signal resource set is taken as the reference start position plus an offset. At this time, multiple reference signal resource sets can be configured by one parameter, so that signaling overhead is reduced.
Example 18
On the basis of embodiment 11, this embodiment provides a time-frequency resource allocation system for reference signals. In the present embodiment, the signal determination unit 202 is further configured to: the reference signal is determined to be valid after the first time. The first time is a first preset offset before and a distance from the beginning of the paging frame or paging occasion or first paging PDCCH listening occasion. In this way, whether the reference signal is valid is related to the paging frame or paging occasion or the beginning of the first paging PDCCH listening occasion, signaling overhead may be reduced.
As an alternative embodiment, the signal determining unit 202 is further configured to: the reference signal is determined to be valid after the second time instant. The second moment is after the paging indication physical downlink control channel and the distance between the second moment and the paging indication PDCCH is a second preset offset.
In an alternative embodiment, the signal determination unit 202 is configured to: and acquiring paging indication information through the paging indication PDCCH.
As an alternative embodiment, the signal determining unit 202 is configured to: if the paging indication information indicates that the reference signal is valid, the reference signal is determined to be valid.
As an alternative embodiment, the signal determining unit 202 is configured to: if the paging indication information indicates that the paging PDCCH needs to be monitored, the reference signal is determined to be valid.
And the UE acquires the paging indication information through the paging indication PDCCH. If the paging indication information indicates that the reference signal is valid, the UE determines that the reference signal is valid. If the paging indication information indicates that the UE needs to monitor the paging PDCCH, the UE determines that the reference signal is valid. Thus, whether the reference signal is valid may be determined by dynamic signaling (dynamic signaling), which may be downlink control information (Down Control Information, DCI) signaling.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims (6)

1. The time-frequency resource allocation method of the reference signal is characterized by comprising the following steps:
acquiring paging indication information through a paging indication PDCCH;
and if the paging indication information indicates that the reference signal is valid, determining that the reference signal is valid.
2. The method for configuring time-frequency resources of a reference signal according to claim 1, wherein the method for configuring time-frequency resources of a reference signal further comprises the steps of:
and if the paging indication information indicates that the paging PDCCH needs to be monitored, determining that the reference signal is valid.
3. A time-frequency resource allocation system of a reference signal, comprising a signal determining unit;
the signal determining unit is used for acquiring paging indication information through a paging indication PDCCH;
the signal determining unit is further configured to determine that the reference signal is valid if the paging indication information indicates that the reference signal is valid.
4. The time-frequency resource allocation system of reference signals of claim 3, wherein the signal determination unit is further configured to determine that a reference signal is valid if the paging indication information indicates that paging PDCCH needs to be monitored.
5. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the time-frequency resource allocation method of the reference signal of claim 1 or 2 when executing the computer program.
6. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the time-frequency resource allocation method of a reference signal according to claim 1 or 2.
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