CN110690947A - Signal processing method and apparatus - Google Patents

Signal processing method and apparatus Download PDF

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Publication number
CN110690947A
CN110690947A CN201810725113.6A CN201810725113A CN110690947A CN 110690947 A CN110690947 A CN 110690947A CN 201810725113 A CN201810725113 A CN 201810725113A CN 110690947 A CN110690947 A CN 110690947A
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csi
signal processing
configuration parameter
terminal device
state
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CN110690947B (en
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姜大洁
司晔
孙鹏
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The embodiment of the invention provides a signal processing method and device, wherein the method comprises the following steps: sending a first message to a network side device, wherein the first message is used for requesting to configure a first CSI-RS in a connection state, an idle state or an inactive state for a terminal device, or is used for requesting to configure a first configuration parameter of the first CSI-RS in the connection state, the idle state or the inactive state for the terminal device; receiving feedback information of the first message from network side equipment; and carrying out signal processing according to the first CSI-RS, or carrying out signal processing according to the first CSI-RS and a synchronous signal block SSB. In the embodiment of the invention, the terminal equipment can quickly complete downlink synchronization through the CSI-RS or through the CSI-RS and the SSB, thereby reducing the downlink synchronization power consumption and the downlink synchronization time and being beneficial to saving electricity of the terminal equipment.

Description

Signal processing method and apparatus
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a signal processing method and device.
Background
Currently, the NEW Radio (NEW Radio, NR) release 15(release 15, R15) protocol provides for the configuration of Channel State Information Reference signals (CSI-RS):
radio Resource Control (RRC) IDLE (IDLE) or RRC Inactive (Inactive) state does not support configuring CSI-RS, e.g., Tracking Reference Signal (TRS);
the RRC Connected (Connected) state supports configuration of the CSI-RS, e.g., TRS, which has a minimum period of 10 milliseconds (ms), and a TRS burst (burst) is composed of 4 Orthogonal Frequency Division Multiplexing (OFDM) symbols and transmitted in 2 consecutive slots.
During development and testing of an NR User Equipment (UE) model, it is found that time and power consumption for completing downlink synchronization through a Synchronization Signal Block (SSB) when an NR UE in an idle state or a connected state Discontinuous Reception (DRX) wakes up from DRX are much higher than those of a Long Term Evolution (LTE) UE.
The main reasons are: the density of NR Cell SSBs is much less than the density of LTE Cell-specific reference signals (CRS). LTE UEs can quickly complete downlink synchronization through continuous CRS, while NR UEs can only complete downlink synchronization through SSB. The period of the NR SSB can be configured to range from 5ms to 160ms, and the SSB needs to complete transmission within 5ms regardless of the period configuration. The periodic configuration of a typical SSB, for example, the periodic configuration of the SSB is 20ms, and the transmission of the SSB is completed in the first 5ms of 20 ms. When the NR UE completes downlink synchronization through the SSB, the NR UE can perform downlink synchronization only by depending on the first 5ms of each SSB period, and the NR UE cannot be used at other times in the period, so that the NR UE needs to detect multiple SSB periods to finally complete downlink synchronization, which causes large power consumption and long downlink synchronization time of the UE downlink synchronization.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a signal processing method and device, which solve the problems of large power consumption of downlink synchronization and long downlink synchronization time of a terminal device.
In a first aspect, a signal processing method is provided, which is applied to a terminal device, and the method includes:
sending a first message to a network side device, wherein the first message is used for requesting to configure a first channel state information reference signal (CSI-RS) in a connected state, an idle state or an inactive state for the terminal device, or requesting to configure a first configuration parameter of the first CSI-RS in the connected state, the idle state or the inactive state for the terminal device;
receiving feedback information of the first message from network side equipment;
and carrying out signal processing according to the first CSI-RS, or carrying out signal processing according to the first CSI-RS and a synchronous signal block SSB.
In a second aspect, a signal processing method is further provided, which is applied to a terminal device, and the method includes:
receiving a third configuration parameter of a second CSI-RS in an idle state or an inactive state from the network side equipment;
and carrying out signal processing according to the second CSI-RS, or carrying out signal processing according to the second CSI-RS and SSB.
In a third aspect, a signal processing method is further provided, where the signal processing method is applied to a network side device, and the method includes:
receiving a first message from a terminal device, wherein the first message is used for requesting to configure a first CSI-RS in a connected state, an idle state or an inactive state for the terminal device, or requesting to configure a first configuration parameter of the first CSI-RS in the connected state, the idle state or the inactive state for the terminal device;
and sending feedback information of the first message to the terminal equipment so that the terminal equipment performs signal processing according to the first CSI-RS, or so that the terminal equipment performs signal processing according to the first CSI-RS and a synchronization signal block SSB.
In a fourth aspect, a signal processing method is further provided, where the signal processing method is applied to a network side device, and the method includes:
and sending a third configuration parameter of the second CSI-RS in an idle state or an inactive state to the terminal equipment so that the terminal equipment performs signal processing according to the second CSI-RS, or so that the terminal equipment performs signal processing according to the second CSI-RS and a synchronization signal block SSB.
In a fifth aspect, a terminal device is further provided, including:
a first sending module, configured to send a first message to a network side device, where the first message is used to request configuration of a first CSI-RS in a connected state, an idle state, or an inactive state for the terminal device, or request configuration of a first configuration parameter of the first CSI-RS in the connected state, the idle state, or the inactive state for the terminal device;
a first receiving module, configured to receive feedback information of the first message from a network side device;
and the first processing module is used for carrying out signal processing according to the first CSI-RS or carrying out signal processing according to the first CSI-RS and a synchronous signal block SSB.
In a sixth aspect, a terminal device is further provided, including:
the second receiving module is used for receiving a third configuration parameter of a second CSI-RS in an idle state or an inactive state from the network side equipment;
and the second processing module is used for carrying out signal processing according to the second CSI-RS or carrying out signal processing according to the second CSI-RS and the SSB.
A seventh aspect further provides a network side device, including:
a third receiving module, configured to receive a first message from a terminal device, where the first message is used to request configuration of a first CSI-RS in a connected state, an idle state, or an inactive state for the terminal device, or is used to request configuration of a first configuration parameter of the first CSI-RS in the connected state, the idle state, or the inactive state for the terminal device;
and a second sending module, configured to send feedback information of the first message to the terminal device, so that the terminal device performs signal processing according to the first CSI-RS, or so that the terminal device performs signal processing according to the first CSI-RS and a synchronization signal block SSB.
In an eighth aspect, a network side device is further provided, including:
and a third sending module, configured to send a third configuration parameter of a second CSI-RS in an idle state or an inactive state to a terminal device, so that the terminal device performs signal processing according to the second CSI-RS, or so that the terminal device performs signal processing according to the second CSI-RS and a synchronization signal block SSB.
In a ninth aspect, there is also provided a user equipment, including: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the signal processing method according to the first or second aspect.
In a tenth aspect, a network-side device is further provided, including: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the signal processing method according to the third or fourth aspect.
In an eleventh aspect, there is also provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the signal processing method according to the first, second, third or fourth aspect.
In the embodiment of the invention, the terminal equipment can quickly complete downlink synchronization through the CSI-RS or through the CSI-RS and the SSB, thereby reducing the power consumption and the time of downlink synchronization and being beneficial to saving electricity of the terminal equipment.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a diagram of a conventional DRX cycle (cycle);
FIG. 2 is a block diagram of a wireless communication system according to an embodiment of the present invention;
FIG. 3 is a flowchart of a signal processing method according to an embodiment of the present invention;
FIG. 4 is a second flowchart of a signal processing method according to an embodiment of the present invention;
FIG. 5 is a third flowchart of a signal processing method according to an embodiment of the present invention;
FIG. 6 is a fourth flowchart of a signal processing method according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
FIG. 8 is a second schematic structural diagram of a terminal device according to an embodiment of the present invention
Fig. 9 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;
fig. 10 is a second schematic structural diagram of a network-side device according to the embodiment of the present invention;
fig. 11 is a third schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 12 is a third schematic structural diagram of a network-side device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "comprises," "comprising," or any other variation thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B, means that three cases, a alone, B alone, and both a and B, exist.
In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
For better understanding of the technical solution of the embodiment of the present invention, the following technical points are first introduced:
first, DRX for RRC _ IDLE state:
in an LTE or fifth-generation mobile communication technology (5G) communication system, a UE in a Radio Resource Control (Radio Resource Control) RRC _ IDLE state (IDLE state for short) needs to detect a paging signal sent by a base station at a preconfigured time, and the UE can turn off its receiver at other times, thereby achieving the purpose of saving power.
The procedure for detecting paging signals is as follows:
the UE blindly detects a Physical Downlink Control Channel (PDCCH) corresponding to a Paging radio network temporary identifier (Paging-RNTI, P-RNTI) at the preconfigured time of each DRX period, and if the PDCCH is not detected, the detection is ended; if the PDCCH is detected to exist, further detecting a Physical Downlink Shared Channel (PDSCH) indicated by the PDCCH, and if the detected PDSCH is not a paging signal for bearing the UE, ending the detection; otherwise, the detected PDSCH carries the paging signal of the UE.
The UE in the RRC _ IDLE state periodically detects a paging signal, and the probability of receiving the paging signal belonging to the UE is relatively low, and the PDCCH and PDSCH detected each time have large power consumption, which is not favorable for saving power of the UE.
DRX for RRC _ CONNECTED state:
the basic mechanism of DRX in RRC _ CONNECTED state (simply referred to as CONNECTED state) is to configure one DRX cycle (cycle) for a UE in RRC _ CONNECTED state. The DRX cycle consists of "Duration (On Duration)" and "Opportunity for DRX" (DRX): during the "duration", the UE monitors and receives the PDCCH (active period); during the "opportunity for DRX" time, the UE does not receive data of the downlink channel to save power consumption (sleep period).
As can be seen from fig. 1, in the time domain, time is divided into successive DRX cycles.
"drxStartOffset" specifies the starting subframe of the DRX Cycle, and "long DRX-Cycle" specifies how many subframes a long (long) DRX Cycle takes, both parameters being determined by the long DRX-Cycle startoffset field. The on duration timer (onDurationTimer) specifies the number of consecutive subframes that need to monitor the PDCCH from the start subframe of the DRX cycle (i.e., the number of subframes for which the active period lasts).
In most cases, after a UE is scheduled to receive or transmit data in a certain subframe, it is likely to continue to be scheduled in the next several subframes, and if waiting for the next DRX cycle to receive or transmit the data will cause extra delay. To reduce such delay, the UE may stay in the active period after being scheduled, i.e., may continuously monitor the PDCCH during the configured active period. The realization mechanism is as follows: each time the UE is scheduled to initially transmit data, a timer (drx-inactivity timer) is started (or restarted) and the UE will remain active until the timer times out. The drx-inactivity timer specifies the number of consecutive subframes that are continuously in the active state after the UE successfully decodes a PDCCH indicating the initially transmitted Uplink (UL) or Downlink (DL) user data. I.e. the timer is restarted once each time the UE has initially transmitted data scheduled. It should be noted that here, the initial transmission is not the retransmission.
Introduction about a Synchronization Signal Block (SSB) and a Physical Broadcast Channel (PBCH) Block:
the SSB comprises: a Primary Synchronization Signal (PSS) block and a Secondary Synchronization Signal (SSS) block. The UE and a cell perform downlink synchronization (including time synchronization and frequency synchronization) and acquire a corresponding timing relationship (including subframe Number and System Frame Number, SFN)), so that a specific SSB or PBCH block of the cell needs to be read.
The period of the SSB can be configured to range from 5ms to 160 ms. Regardless of the periodic configuration, the SSB needs to complete transmission within 5ms, and the periodic configuration of a typical SSB, for example, when the period of the SSB is 20ms, the transmission of the SSB is completed in the first 5ms of 20 ms.
Introduction of CSI-RS:
the CSI-RS or CSI-interference measurement (CSI-IM) is configured by a CSI Resource configuration (Resource setting) of a higher layer (e.g., RRC) and a message contained therein, including: one DL partial bandwidth information (BWP-info) corresponding to NZP CSI-RS (non-zero power CSI-RS) or CSI-interference measurement (CSI-IM), and the transmitted periodicity characteristics: periodic (Periodic), Semi-Persistent (Semi-Persistent), Aperiodic (Aperiodic).
The triggering or activation of the CSI-RS or CSI-IM transmission is shown in table 1.
Table 1:
Figure BDA0001719502080000071
embodiments of the present invention are described below with reference to the accompanying drawings. The signal processing method and the signal processing equipment provided by the embodiment of the invention can be applied to a wireless communication system. The wireless communication system may be a 5G system, an Evolved Long Term Evolution (lte) system, or a subsequent lte communication system. Fig. 2 is a block diagram of a wireless communication system according to an embodiment of the present invention. As shown in fig. 2, the wireless communication system may include: the network side device 20 and the user equipment, for example, the user equipment is denoted as UE21, and the UE21 may communicate (transmit signaling or transmit data) with the network side device 20. In practical applications, the connections between the above devices may be wireless connections, and fig. 2 is illustrated with solid lines for convenience and intuition of the connection relationships between the devices.
It should be noted that the communication system may include a plurality of UEs 21, and the network side device 20 may communicate with a plurality of UEs 21.
The network side device 20 provided in the embodiment of the present invention may be a base station, which may be a commonly used base station, an evolved node base station (eNB), or a network side device in a 5G system (e.g., a next generation base station (gNB) or a Transmission and Reception Point (TRP)).
The user equipment provided by the embodiment of the invention can be a Mobile phone, a tablet Computer, a notebook Computer, an Ultra-Mobile Personal Computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like.
Referring to fig. 3, an embodiment of the present invention provides a signal processing method, where an execution main body of the method may be a terminal device, and the method includes the following specific steps:
step 301: sending a first message to network side equipment, wherein the first message is used for requesting to configure a first CSI-RS in a connection state, an idle state or an inactive state for the terminal equipment, or requesting to configure a first configuration parameter of the first CSI-RS in the connection state, the idle state or the inactive state for the terminal equipment;
it is understood that the connected, idle or inactive first CSI-RS means that the first CSI-RS is transmitted in the connected, idle or inactive state of the terminal device.
It is to be understood that the terminal device may be a UE, such as an NR UE or an eMTC (enhanced machine type Communication), and an evolved UE thereof, but is not limited thereto.
The following request modes can be included in step 301:
mode 1) when a terminal device is in a connected state, sending a first message to a network side device, wherein the first message is used for requesting to configure a first CSI-RS in an idle state or an inactive state for the terminal device, or requesting to configure a first configuration parameter of the first CSI-RS in the idle state or the inactive state for the terminal device; preferably, the first CSI-RS or the first configuration parameter of the first CSI-RS is intended to be used by the terminal device;
mode 2) when the terminal device is in a connected state, sending a first message to the network side device, where the first message is used to request configuration of a first CSI-RS in the connected state for the terminal device, or request configuration of a first configuration parameter of the first CSI-RS in the connected state for the terminal device; preferably, the first CSI-RS or the first configuration parameter of the first CSI-RS is intended to be used by the terminal device;
mode 3) when the terminal device is in an idle state or an inactive state, sending a first message to the network side device, where the first message is used to request configuration of a first CSI-RS in the idle state or the inactive state for the terminal device, or request configuration of a first configuration parameter of the first CSI-RS in the idle state or the inactive state for the terminal device; preferably, the first CSI-RS or the first configuration parameter of the first CSI-RS is intended to be used by the terminal device;
a) transmitting a first message by transmitting a random access preamble (preamble) sequence, the preamble sequence being related to a CSI-RS category, a resource configuration manner, or a configuration parameter, that is: different preamble sequence formats can correspond to different CSI-RS types, resource configuration modes or configuration parameters; the base station detects a preamble sequence format in a blind way, so that the CSI-RS type, the resource allocation mode or the allocation parameters are obtained according to the sequence format;
b) sending a first Message by sending a Message 3(Message 3) of a Physical Random Access Channel (PRACH), wherein a field of the Message 3 comprises a CSI-RS type, a resource configuration mode or a configuration parameter requested by a terminal device;
it is understood that terminal devices in IDLE (IDLE) state and Inactive (Inactive) state and terminal devices in Connected (Connected) state may share or partially share CSI-RS resources.
Therefore, the terminal equipment can request the network side equipment to configure the CSI-RS in different states which the terminal equipment tends to use according to the self condition (such as synchronous time, channel condition and the like), so that the terminal equipment can complete downlink synchronization quickly according to the CSI-RS fed back by the base station, or according to the CSI-RS and SSB fed back by the base station, or the sleep time of the terminal equipment in an idle state or a connected state DRX is increased, and the power saving of the terminal equipment is facilitated.
Or, the terminal device may request the network side device to configure CSI-RS in different states according to its own condition (for example, the terminal device is configured with RRM measurement relaxation by the base station), which is beneficial for the terminal device to perform measurement according to the CSI-RS fed back by the base station and improve measurement accuracy.
Step 302: receiving feedback information of the first message from the network side equipment;
optionally, the feedback information may include one or more of: an Acknowledgement (ACK) or a Negative-Acknowledgement (NACK) of the first message; a second configuration parameter of the first CSI-RS. The second configuration parameter may be the same as or different from the first configuration parameter.
Step 303: and carrying out signal processing according to the first CSI-RS, or carrying out signal processing according to the first CSI-RS and a synchronous signal block SSB.
In the embodiment of the invention, the terminal equipment can quickly complete synchronization through the first CSI-RS or the first CSI-RS and the SSB, and the power consumption and the synchronization time of the terminal equipment are reduced. Or the terminal equipment can perform measurement through the first CSI-RS or the first CSI-RS and the SSB, so that the measurement accuracy is improved.
Optionally, the signal processing in step 303 may include any one or more of: time/frequency tracking; CSI calculation (CSI computation); layer 1 reference signal received power calculation (L1-RSRP calculation); mobility (mobility) measurements; and interference measurements. Wherein the time-frequency domain tracking comprises time domain tracking, frequency domain tracking, and at least one of time domain and frequency domain tracking.
Optionally, the first CSI-RS may comprise at least one of: a CSI-RS (CSI-RS Tracking) for Tracking, for example, a Tracking Reference Signal (TRS); a CSI-RS (CSI-RS for L1-RSRP calculation) for calculating a layer 1 reference signal received power; CSI-RS (CSI-RSfor mobility) for mobility; zero Power CSI-RS (Zero Power CSI-RS); non-zero power CSI-RS (Non-ZeroPower CSI-RS).
Optionally, the first configuration parameter and the second configuration parameter may include at least one of: a periodic (periodic) resource configuration, a semi-persistent (periodic) resource configuration, and an aperiodic (aperiodic) resource configuration.
Optionally, the first configuration parameter and the second configuration parameter may include at least one of:
a CSI-RS period, e.g., a TRS period;
a CSI-RS duration;
CSI-RS offset (offset);
a CDM Type (Type) of the CSI-RS, a value (value) and a pattern (pattern) for defining CDM;
number of CSI-RS ports (number of CSI-RS ports)
A CSI-RS pattern or resource Mapping (CSI-RS pattern/resource Mapping), e.g., OFDM symbols and subcarriers occupied by CSI-RS resources within a slot (OFDM symbols and subcarriers allocation of the CSI-RS resources with a slot);
CSI-RS Density (Density);
frequency-domain resource information of the CSI-RS, for example, a carrier where the CSI-RS is located, a Physical Resource Block (PRB), or a partial Bandwidth (BWP).
Optionally, the CSI-RS period corresponds to a DRX period. Here, DRX includes RRC connected DRX and RRC idle DRX. It is understood that the TRS configuration parameters for different DRX cycles are different, for example, the larger the DRX cycle, the shorter the TRS cycle configured before the wake-up time of each DRX cycle, or the higher the TRS density configured before the wake-up time of each DRX cycle. Therefore, the terminal equipment can finish the downlink synchronization quickly when the DRX is finished.
In the embodiment of the invention, the terminal equipment rapidly completes downlink synchronization through the CSI-RS or the CSI-RS and the SSB, so that the downlink synchronization power consumption and the downlink synchronization time can be reduced, and the power saving of the terminal equipment is facilitated.
Referring to fig. 4, an embodiment of the present invention further provides another signal processing method, where an execution subject of the method is a terminal device, and the terminal device may be NR UE or eMTC and UE evolved by the eMTC, but is not limited to this, and the specific steps are as follows:
step 401: receiving a third configuration parameter of a second CSI-RS in an idle state or an inactive state from the network side equipment;
it is understood that the meaning of the second CSI-RS in the idle state or the inactive state is that the second CSI-RS is transmitted in the idle state or the inactive state of the terminal device. Optionally, the manner in which the terminal device receives the third configuration parameter from the network-side device in step 401 includes any one of:
mode 1): the terminal device in the connected state receives a third configuration parameter of the second CSI-RS in an idle state or an inactive state through a system message, a physical layer signaling, a Media Access Control (MAC) signaling, or an RRC signaling;
mode 2): and the terminal equipment in the idle state or the inactive state receives the third configuration parameters of the second CSI-RS in the idle state or the inactive state through the system message, the Paging PDCCH or the Paging PDCCH and the corresponding PDSCH.
Step 402: and carrying out signal processing according to the second CSI-RS, or carrying out signal processing according to the second CSI-RS and the SSB.
Optionally, the signal processing in step 402 may include any one or more of: time/frequency tracking; CSI calculation (CSI computation); layer 1 reference signal received power calculation (L1-rsrpcpomputation); mobility (mobility) measurements; and interference measurements. Wherein the time-frequency domain tracking comprises time domain tracking, frequency domain tracking, and at least one of time domain and frequency domain tracking.
Optionally, the second CSI-RS may comprise at least one of: CSI-RS (CSI-RS forking) for tracking; a CSI-RS (CSI-RS for L1-RSRPComputation) for calculating a layer 1 reference signal received power; CSI-RS for mobility; zero power CSI-RS (zeroPower CSI-RS); Non-Zero Power CSI-RS (Non-Zero Power CSI-RS).
Optionally, the third configuration parameter may comprise at least one of: a periodic (periodic) resource configuration, a semi-persistent (periodic) resource configuration, and an aperiodic (aperiodic) resource configuration.
Optionally, the third configuration parameter may comprise at least one of:
a CSI-RS period, such as a TRS period;
a CSI-RS duration;
CSI-RS offset (offset);
a CDM Type (Type) of the CSI-RS, a value (value) and a pattern (pattern) for defining CDM;
number of CSI-RS ports (number of CSI-RS ports)
A CSI-RS pattern or resource Mapping (CSI-RS pattern/resource Mapping), e.g., OFDM symbols and subcarriers occupied by CSI-RS resources within a slot (OFDM symbols and subcarriers allocation of the CSI-RS resources with a slot);
CSI-RS Density (Density);
frequency-domain resource information of the CSI-RS, for example, a carrier where the CSI-RS is located, a Physical Resource Block (PRB), or a partial Bandwidth (BWP).
Optionally, the CSI-RS period corresponds to a DRX period. Here, DRX includes RRC connected DRX and RRC idle DRX. It can be understood that the TRS configuration parameters corresponding to different DRX cycles are different, for example, the larger the DRX cycle is, the shorter the TRS cycle configured before the wake-up time of each DRX cycle is, or the higher the TRS density is, which is beneficial for the terminal device to complete downlink synchronization quickly when DRX ends.
In the embodiment of the invention, the terminal equipment rapidly completes downlink synchronization through the CSI-RS or the CSI-RS and the SSB, so that the downlink synchronization power consumption and the downlink synchronization time can be reduced, and the power saving of the terminal equipment is facilitated.
Referring to fig. 5, an embodiment of the present invention provides another signal processing method, where an execution main body of the method is a network side device, and the method includes the following specific steps:
step 501: receiving a first message from a terminal device, wherein the first message is used for requesting to configure a first CSI-RS in a connected state, an idle state or an inactive state for the terminal device, or requesting to configure a first configuration parameter of the first CSI-RS in the connected state, the idle state or the inactive state for the terminal device;
preferably, the first CSI-RS or the first configuration parameter of the first CSI-RS is intended to be used by the terminal device;
it is to be understood that the terminal device may be a UE, such as an NR UE or an eMTC and its evolved UE, but is not limited thereto.
It is understood that the connected, idle or inactive first CSI-RS means that the first CSI-RS is transmitted in the connected, idle or inactive state of the terminal device.
In the embodiment of the present invention, the terminal device may request the network side device to configure CSI-RS in different states according to its own conditions (e.g., synchronization time, channel conditions, etc.), which is beneficial for the terminal device to complete downlink synchronization quickly, or increase the sleep time of the terminal device in the idle state or connected state DRX, and is beneficial for the terminal device to save power.
Step 502: and sending feedback information of the first message to terminal equipment so that the terminal equipment performs signal processing according to the first CSI-RS, or so that the terminal equipment performs signal processing according to the first CSI-RS and a synchronization signal block SSB.
Optionally, the feedback information may include one or more of: ACK or NACK of the first message; a second configuration parameter of the first CSI-RS.
Optionally, the first CSI-RS may comprise at least one of: CSI-RS (CSI-RS forking) for tracking; a CSI-RS (CSI-RS for L1-RSRPComputation) for calculating a layer 1 reference signal received power; CSI-RS for mobility; zero power CSI-RS (zeroPower CSI-RS); Non-Zero Power CSI-RS (Non-Zero Power CSI-RS).
Optionally, the first configuration parameter and the second configuration parameter may include at least one of: a periodic (periodic) resource configuration, a semi-persistent (periodic) resource configuration, and an aperiodic (aperiodic) resource configuration.
Optionally, the first configuration parameter and the second configuration parameter may include at least one of:
a CSI-RS period, such as a TRS period;
a CSI-RS duration;
CSI-RS offset (offset);
a CDM Type (Type) of the CSI-RS, a value (value) and a pattern (pattern) for defining CDM;
number of CSI-RS ports (number of CSI-RS ports)
A CSI-RS pattern or resource Mapping (CSI-RS pattern/resource Mapping), e.g., OFDM symbols and subcarriers occupied by CSI-RS resources within a slot (OFDM symbols and subcarriers allocation of the CSI-RS resources with a slot);
CSI-RS Density (Density);
frequency-domain resource information of the CSI-RS, for example, a carrier where the CSI-RS is located, a Physical Resource Block (PRB), or a partial Bandwidth (BWP).
Optionally, the CSI-RS period corresponds to a DRX period. Here, DRX includes RRC connected DRX and RRC idle DRX. It can be understood that the TRS configuration parameters corresponding to different DRX cycles are different, for example, the larger the DRX cycle is, the shorter the TRS cycle configured before the wake-up time of each DRX cycle is, or the higher the TRS density is, which is beneficial for the terminal device to complete downlink synchronization quickly when DRX ends.
The second configuration parameter may be the same as or different from the first configuration parameter.
In the embodiment of the invention, the terminal equipment rapidly completes downlink synchronization through the CSI-RS or the CSI-RS and the SSB, so that the downlink synchronization power consumption and the downlink synchronization time can be reduced, and the power saving of the terminal equipment is facilitated.
Or the terminal device can perform RRM measurement through the first CSI-RS or the first CSI-RS and the SSB, so that the measurement accuracy is improved.
Referring to fig. 6, an embodiment of the present invention further provides another signal processing method, where an execution main body of the method is a network side device, and the method includes the following specific steps:
step 601: and sending the third configuration parameters of the second CSI-RS in an idle state or an inactive state to the terminal equipment so that the terminal equipment performs signal processing according to the second CSI-RS, or so that the terminal equipment performs signal processing according to the second CSI-RS and the SSB.
It is to be understood that the terminal device may be a UE, such as an NR UE or an eMTC and its evolved UE, but is not limited thereto.
It is understood that the meaning of the second CSI-RS in the idle state or the inactive state is that the second CSI-RS is transmitted in the idle state or the inactive state of the terminal device.
Optionally, the manner of sending the third configuration parameter in step 601 includes any one of the following:
mode 1): sending a third configuration parameter of the second CSI-RS in an idle state or an inactive state to the terminal equipment in a connected state through a system message, a physical layer signaling, a Media Access Control (MAC) signaling or a Radio Resource Control (RRC) signaling;
mode 2): and sending a third configuration parameter of a second CSI-RS in an idle state or an inactive state to the terminal equipment in the idle state or the inactive state through a system message, a Paging PDCCH, or the Paging PDCCH and the corresponding PDSCH. Optionally, the second CSI-RS may comprise at least one of: CSI-RS (CSI-RS forking) for tracking; a CSI-RS (CSI-RS for L1-RSRPComputation) for calculating a layer 1 reference signal received power; CSI-RS for mobility; zero power CSI-RS (zeroPower CSI-RS); Non-Zero Power CSI-RS (Non-Zero Power CSI-RS).
Optionally, the third configuration parameter comprises at least one of: a periodic (periodic) resource configuration, a semi-persistent (periodic) resource configuration, and an aperiodic (aperiodic) resource configuration.
Optionally, the third configuration parameter may comprise at least one of:
a CSI-RS period, such as a TRS period;
a CSI-RS duration;
CSI-RS offset (offset);
a CDM Type (Type) of the CSI-RS, a value (value) and a pattern (pattern) for defining CDM;
number of CSI-RS ports (number of CSI-RS ports);
a CSI-RS pattern or resource Mapping (CSI-RS pattern/resource Mapping), e.g., OFDM symbols and subcarriers occupied by CSI-RS resources within a slot (OFDM symbols and subcarriers allocation of the CSI-RS resources with a slot);
CSI-RS Density (Density);
frequency-domain resource information of the CSI-RS, for example, a carrier where the CSI-RS is located, a Physical Resource Block (PRB), or a partial Bandwidth (BWP).
Optionally, the CSI-RS period corresponds to a DRX period. Here, DRX includes RRC connected DRX and RRC idle DRX. It can be understood that the TRS configuration parameters corresponding to different DRX cycles are different, for example, the larger the DRX cycle is, the shorter the TRS cycle configured before the wake-up time of each DRX cycle is, or the higher the TRS density is, which is beneficial for the terminal device to complete downlink synchronization quickly when DRX ends.
In the embodiment of the invention, the terminal equipment rapidly completes downlink synchronization through the CSI-RS or the CSI-RS and the SSB, so that the downlink synchronization power consumption and the downlink synchronization time can be reduced, and the power saving of the terminal equipment is facilitated.
For convenience of understanding, the following describes in detail a procedure of reporting a CSI-RS configuration request or a configuration parameter by a terminal device in the embodiment of the present invention with reference to example 1, example 2, example 3, example 4, and example 5.
Example 1:
step 1: the UE requests the base station to configure a CSI-RS in a Connected state, for example, the UE may be a UE that consumes large downlink synchronous power when DRX wakes up, or the UE may be a UE that is configured with Radio Resource Management (RRM) or Radio Link Monitoring (RLM) measurement relaxation (for example, a network side device configures a longer RRM or a period of RLM measurement for the UE), or the UE may be a UE that performs RRM measurement only through an SSB but has low measurement accuracy or quality;
optionally, the CSI-RS may comprise at least one of: a CSI-RS (CSI-RS forking) for tracking, TRS; a CSI-RS (CSI-RS for L1-RSRPComputation) for calculating a layer 1 reference signal received power; and, CSI-RS for mobility (CSI-RS for mobility);
optionally, the CSI-RS may comprise at least one of: zero Power CSI-RS (Zero Power CSI-RS), Non-Zero Power CSI-RS (Non-Zero Power CSI-RS);
optionally, the resource configuration mode (ResourceConfigType) of the CSI-RS may include at least one of the following: periodic (period); semi-persistent (semi-persistent); and aperiodic (aperiodic).
Optionally, the configuration parameters of the CSI-RS may include at least one of:
a CSI-RS period;
a CSI-RS duration;
CSI-RS offset (offset);
CDM Type (Type), which defines a value (value) and a pattern (pattern) of CDM;
number of CSI-RS ports (number of CSI-RS ports);
a CSI-RS pattern or resource Mapping (CSI-RS pattern/resource Mapping), e.g., OFDM symbols and subcarriers occupied by CSI-RS resources within a slot (OFDM symbols and subcarriers allocation of the CSI-RS resources with a slot);
CSI-RS Density (Density);
and frequency domain resource information of the CSI-RS, such as a carrier where the CSI-RS is located, PRB or BWP.
It can be understood that the TRS configuration parameters corresponding to different DRX cycles are different, for example: the larger the DRX period is, the shorter the TRS period configured before the wake-up time of each DRX period is, or the higher the TRS density is, which is beneficial to the UE to quickly finish the downlink synchronization when the DRX is finished.
Optionally, the UE requests to configure the Connected CSI-RS in step 1 may be: the UE sends information related to the CSI-RS configuration parameters, for example, information related to power consumption and time for downlink synchronization performed by the UE, or measurement accuracy for RRM measurement performed by the UE through the SSB, to the base station.
Step 2: the UE performs at least one of the following according to the CSI-RS configured or reconfigured by the network or the CSI-RS and the SSB configured or reconfigured by the network: time/frequency tracking, CSI calculation (CSIcomputation), layer 1 reference signal received power calculation (L1-RSRP calculation), mobility measurement, and interference measurement. Wherein the time-frequency domain tracking comprises time domain tracking, frequency domain tracking, and at least one of time domain and frequency domain tracking.
Optionally, the network may configure or reconfigure the CSI-RS for one or a group of UEs.
Example 2:
step 1: the UE requests the base station to configure the CSI-RS in the IDLE state or the Inactive state, for example, the UE may be a UE that consumes large downlink synchronization power when DRX wakes up, or the UE may be a UE that configures RRM or RLM measurement relaxation (for example, a network side device configures a longer RRM or RLM measurement period for the UE), or the UE may be a UE that performs RRM measurement only through an SSB but has low measurement accuracy or quality;
optionally, the CSI-RS may comprise at least one of: a CSI-RS (CSI-RS forking) for tracking, TRS; a CSI-RS (CSI-RS for L1-RSRPComputation) for calculating a layer 1 reference signal received power; and, CSI-RS for mobility (CSI-RS for mobility);
optionally, the CSI-RS may comprise at least one of: zero Power CSI-RS (Zero Power CSI-RS), Non-Zero Power CSI-RS (Non-Zero Power CSI-RS);
optionally, the resource configuration mode (ResourceConfigType) of the CSI-RS may include at least one of the following: periodic (period); semi-persistent (semi-persistent); and, aperiodic (aperiodic).
It is to be understood that the base station may transmit the TRS or the CSI-RS when there is paging (paging). That is, the base station does not transmit the TRS or CSI-RS when there is no paging.
Optionally, the configuration parameters of the CSI-RS may include at least one of:
a CSI-RS period;
a CSI-RS duration;
CSI-RS offset (offset);
CDM Type (Type), which defines a value (value) and a pattern (pattern) of CDM;
number of CSI-RS ports (number of CSI-RS ports)
A CSI-RS pattern or resource Mapping (CSI-RS pattern/resource Mapping), e.g., OFDM symbols and subcarriers occupied by CSI-RS resources within a slot (OFDM symbols and subcarriers allocation of the CSI-RS resources with a slot);
CSI-RS Density (Density);
and frequency domain resource information of the CSI-RS, for example, a carrier where the CSI-RS is located, a PRB, or a BWP.
It can be understood that the TRS configuration parameters corresponding to different DRX cycles are different, for example, the larger the DRX cycle is, the shorter the TRS cycle configured before the wake-up time of each DRX cycle is, or the higher the TRS density is, which is beneficial for the UE to quickly complete downlink synchronization at the end of DRX.
Optionally, the method for the UE to request configuration of the CSI-RS in IDLE state or Inactive state in step 1 may be: the UE sends information related to the CSI-RS configuration information to the base station, for example, power consumption and time related information of downlink synchronization of the UE;
step 2: the UE performs at least one of the following according to the CSI-RS configured or reconfigured by the network or the CSI-RS and the SSB configured or reconfigured by the network: time/frequency tracking, CSI calculation (CSIcomputation), layer 1 reference signal received power calculation (L1-RSRP calculation), mobility measurement, and interference measurement. Wherein the time-frequency domain tracking comprises time domain tracking, frequency domain tracking, and at least one of time domain and frequency domain tracking.
It is understood that embodiments include eMTC (enhanced Machine type communication) and its evolved UE requesting RSS (Re-Synchronization Signal, which the R15 protocol introduces) in addition to NR.
In particular to a method for preparing a high-performance nano-silver alloy,
step 1: the eMTC UE sends an RSS request to eMTC network side equipment or sends RSS configuration parameters which tend to be used; the RSS configuration parameters comprise at least one of an RSS period, an RSS frequency domain resource, an RSS offset, an RSS density and an RSS duration;
step 2: the eMTC UE performs at least one of the following according to an eMTC network configured or reconfigured RSS, or according to ss (synchronized signal) and network configured or reconfigured RSS: downlink time or frequency domain synchronization, downlink time-frequency domain synchronization, CSI calculation, layer 1 reference signal received power calculation (L1-RSRP calculation), mobility (mobility) measurement, and interference measurement.
It should be noted that, for the TRS of the corresponding cycle, the TRS configuration parameters corresponding to different DRX cycles (paging cycles) are different, for example, the larger the DRX cycle is, the shorter the TRS cycle configured before the wake-up time of each DRX cycle is, or the higher the TRS density is, which is beneficial for the UE to quickly complete downlink synchronization when the DRX is finished.
Optionally, the network may configure or reconfigure the CSI-RS for one or a group of UEs.
Example 3:
step 1: the method comprises the steps that UE receives configuration information of an IDLE state or Inactive state CSI-RS sent by a base station;
step 2: the UE performs at least one of the following according to the CSI-RS configured or reconfigured by the network or the CSI-RS and the SSB configured or reconfigured by the network: time/frequency tracking, CSI calculation (CSIcomputation), layer 1 reference signal received power calculation (L1-RSRP calculation), mobility measurement, and interference measurement. Wherein the time-frequency domain tracking comprises time domain tracking, frequency domain tracking, and at least one of time domain and frequency domain tracking.
Optionally, the CSI-RS may comprise at least one of: a CSI-RS (CSI-RS forking) for tracking, TRS; a CSI-RS (CSI-RS for L1-RSRPComputation) for calculating a layer 1 reference signal received power; and, CSI-RS for mobility (CSI-RS for mobility);
optionally, the CSI-RS may comprise at least one of: zero Power CSI-RS (Zero Power CSI-RS), Non-Zero Power CSI-RS (Non-Zero Power CSI-RS);
optionally, the resource configuration mode (ResourceConfigType) of the CSI-RS may include at least one of the following: periodic (period); semi-persistent (semi-persistent); and, aperiodic (aperiodic).
It should be noted that the base station may transmit the TRS or CSI-RS only when there is paging. That is, the base station does not transmit the TRS or CSI-RS when there is no paging.
Alternatively, the base station may transmit the CSI-RS for one or a group of UEs.
Optionally, the configuration parameters of the CSI-RS may include at least one of:
a CSI-RS period;
a CSI-RS duration;
CSI-RS offset (offset);
CDM Type (Type), which defines a value (value) and a pattern (pattern) of CDM;
number of CSI-RS ports (number of CSI-RS ports)
A CSI-RS pattern or resource Mapping (CSI-RS pattern/resource Mapping), e.g., OFDM symbols and subcarriers occupied by CSI-RS resources within a slot (OFDM symbols and subcarriers allocation of the CSI-RS resources with a slot);
CSI-RS Density (Density);
and frequency domain resource information of the CSI-RS, such as a carrier where the CSI-RS is located, PRB or BWP.
It should be noted that, in example 1, example 2, or example 3, the IDLE-state or Inactive-state UE may share or partially share the TRS/CSI-RS with the Connected UE.
It should be noted that, in example 1, example 2, or example 3, the UE supports configuring a TRS with a shorter period and a denser density than the NR Release 15 protocol, and performs measurement or downlink synchronization by using the TRS. The measurement precision can be improved or the downlink synchronization time can be shortened.
The embodiment of the invention also provides the terminal equipment, and as the principle of solving the problems of the terminal equipment is similar to the processing method in the embodiment of the invention, the implementation of the terminal equipment can refer to the implementation of the method, and repeated parts are not repeated.
Referring to fig. 7, an embodiment of the present invention further provides a terminal device, where the terminal device 700 includes:
a first sending module 701, configured to send a first message to a network side device, where the first message is used to request to configure a first CSI-RS in a connected state, an idle state, or an inactive state for the terminal device, or is used to request to configure a first configuration parameter of the first CSI-RS in the connected state, the idle state, or the inactive state for the terminal device;
a first receiving module 702, configured to receive feedback information of the first message from a network-side device;
a first processing module 703 is configured to perform signal processing according to the first CSI-RS, or perform signal processing according to the first CSI-RS and a synchronization signal block SSB.
In this embodiment of the present invention, optionally, the feedback information includes one or more of the following items: an ACK or NACK for the first message; a second configuration parameter of the first CSI-RS.
In the embodiment of the present invention, optionally, the signal processing includes any one or more of the following: tracking a time frequency domain; calculating CSI; calculating the receiving power of a layer 1 reference signal; mobility measurement; and interference measurements. Wherein the time-frequency domain tracking comprises time domain tracking, frequency domain tracking, and at least one of time domain and frequency domain tracking.
In the embodiment of the present invention, optionally, the first CSI-RS includes at least one of: a CSI-RS for tracking; a CSI-RS for calculating a layer 1 reference signal received power; CSI-RS for mobility; a CSI-RS of zero power; and a non-zero power CSI-RS.
In the embodiment of the present invention, optionally, the first configuration parameter and the second configuration parameter include at least one of the following: periodic resource allocation, semi-persistent resource allocation, and aperiodic resource allocation.
In the embodiment of the present invention, optionally, the first configuration parameter and the second configuration parameter may include at least one of the following: a CSI-RS period; a CSI-RS offset; a CDM type of CSI-RS; number of CSI-RS ports; a CSI-RS pattern or resource mapping; a CSI-RS density; and frequency domain resource information of the CSI-RS.
In this embodiment of the present invention, optionally, the CSI-RS cycle corresponds to a discontinuous reception DRX cycle.
It is to be understood that the terminal device may be a UE, such as an NR UE or an eMTC and its evolved UE, but is not limited thereto.
The user equipment provided by the embodiment of the present invention may execute the method embodiments described above, and the implementation principle and technical effect are similar, which are not described herein again.
The embodiment of the invention also provides the terminal equipment, and as the principle of solving the problems of the terminal equipment is similar to the processing method in the embodiment of the invention, the implementation of the terminal equipment can refer to the implementation of the method, and repeated parts are not repeated.
Referring to fig. 8, an embodiment of the present invention further provides a terminal device, where the terminal device 800 includes:
a second receiving module 801, configured to receive, from the network side device, a third configuration parameter of a second CSI-RS in an idle state or an inactive state;
and a second processing module 802, configured to perform signal processing according to the second CSI-RS or perform signal processing according to the second CSI-RS and the SSB.
In this embodiment of the present invention, optionally, the second receiving module 801 is further configured to perform any one of the following:
when the terminal equipment is in a connected state, receiving a third configuration parameter of a second CSI-RS in an idle state or an inactive state through a system message, a physical layer signaling, a Media Access Control (MAC) signaling or a Radio Resource Control (RRC) signaling, wherein the terminal equipment is in the connected state;
and when the terminal equipment is in an idle state or an inactive state, receiving a third configuration parameter of a second CSI-RS in the idle state or the inactive state through a system message, a Paging PDCCH, or the Paging PDCCH and a corresponding PDSCH.
In the embodiment of the present invention, optionally, the signal processing may include any one or more of the following: tracking a time frequency domain; calculating CSI; calculating the receiving power of a layer 1 reference signal; mobility measurement; and interference measurements. Wherein the time-frequency domain tracking comprises time domain tracking, frequency domain tracking, and at least one of time domain and frequency domain tracking.
In the embodiment of the present invention, optionally, the second CSI-RS may include at least one of: a CSI-RS for tracking; a CSI-RS for calculating a layer 1 reference signal received power; CSI-RS for mobility; a CSI-RS of zero power; and a non-zero power CSI-RS.
In this embodiment of the present invention, optionally, the third configuration parameter may include at least one of the following: periodic resource allocation, semi-persistent resource allocation, and aperiodic resource allocation.
In this embodiment of the present invention, optionally, the third configuration parameter may include at least one of the following: a CSI-RS period; a CSI-RS offset; a CDM type of CSI-RS; number of CSI-RS ports; a CSI-RS pattern or resource mapping; a CSI-RS density; and frequency domain resource information of the CSI-RS.
In the embodiment of the present invention, optionally, the CSI-RS cycle corresponds to the DRX cycle.
It is to be understood that the terminal device may be a UE, such as an NR UE or an eMTC and its evolved UE, but is not limited thereto.
The user equipment provided by the embodiment of the present invention may execute the method embodiments described above, and the implementation principle and technical effect are similar, which are not described herein again.
The embodiment of the present invention further provides a network side device, and as the principle of solving the problem of the network side device is similar to the processing method in the embodiment of the present invention, the implementation of the network side device may refer to the implementation of the method, and the repeated parts are not described again.
Referring to fig. 9, an embodiment of the present invention further provides a network side device, where the network side device 900 includes:
a third receiving module 901, configured to receive a first message from a terminal device, where the first message is used to request to configure a first CSI-RS in a connected state, an idle state, or an inactive state for the terminal device, or to request to configure a first configuration parameter of the first CSI-RS in the connected state, the idle state, or the inactive state for the terminal device;
a second sending module 902, configured to send feedback information of the first message to the terminal device, so that the terminal device performs signal processing according to the first CSI-RS, or so that the terminal device performs signal processing according to the first CSI-RS and a synchronization signal block SSB.
It is to be understood that the terminal device may be a UE, such as an NR UE or an eMTC and its evolved UE, but is not limited thereto.
In the embodiment of the present invention, optionally, the feedback information may include one or more of the following items: an ACK or NACK for the first message; a second configuration parameter of the first CSI-RS.
In the embodiment of the present invention, optionally, the first CSI-RS includes at least one of: a CSI-RS for tracking; a CSI-RS for calculating a layer 1 reference signal received power; CSI-RS for mobility; a CSI-RS of zero power; a non-zero power CSI-RS.
In the embodiment of the present invention, optionally, the first configuration parameter and the second configuration parameter may include at least one of the following: periodic resource allocation, semi-persistent resource allocation, and aperiodic resource allocation.
In the embodiment of the present invention, optionally, the first configuration parameter and the second configuration parameter include at least one of the following: a CSI-RS period; a CSI-RS offset; a CDM type of CSI-RS; number of CSI-RS ports; a CSI-RS pattern or resource mapping; a CSI-RS density; and frequency domain resource information of the CSI-RS.
In this embodiment of the present invention, optionally, the CSI-RS cycle corresponds to a DRX cycle.
The network side device provided by the embodiment of the present invention may execute the method embodiments described above, and the implementation principle and the technical effect are similar, which are not described herein again.
The embodiment of the present invention further provides a network side device, and as the principle of solving the problem of the network side device is similar to the processing method in the embodiment of the present invention, the implementation of the network side device may refer to the implementation of the method, and the repeated parts are not described again.
Referring to fig. 10, an embodiment of the present invention further provides a network-side device, where the network-side device 1000 includes:
a third sending module 1001, configured to send a third configuration parameter of a second CSI-RS in an idle state or an inactive state to a terminal device, so that the terminal device performs signal processing according to the second CSI-RS, or so that the terminal device performs signal processing according to the second CSI-RS and a synchronization signal block SSB.
It is to be understood that the terminal device may be a UE, such as an NR UE or an eMTC and its evolved UE, but is not limited thereto.
In this embodiment of the present invention, optionally, the third sending module 1001 is further configured to execute any one of the following:
sending a third configuration parameter of the second CSI-RS in an idle state or an inactive state to the terminal equipment in a connected state through a system message, a physical layer signaling, an MAC signaling or an RRC signaling;
and sending a third configuration parameter of a second CSI-RS in an idle state or an inactive state to the terminal equipment in the idle state or the inactive state through a system message, a Paging PDCCH, or the Paging PDCCH and the corresponding PDSCH.
In the embodiment of the present invention, optionally, the second CSI-RS includes at least one of: a CSI-RS for tracking; a CSI-RS for calculating a layer 1 reference signal received power; CSI-RS for mobility; a CSI-RS of zero power; a non-zero power CSI-RS.
In this embodiment of the present invention, optionally, the third configuration parameter may include at least one of the following: periodic resource allocation, semi-persistent resource allocation, and aperiodic resource allocation.
In this embodiment of the present invention, optionally, the third configuration parameter may include at least one of the following: a CSI-RS period; a CSI-RS offset; a CDM type of CSI-RS; number of CSI-RS ports; a CSI-RS pattern or resource mapping; a CSI-RS density; and frequency domain resource information of the CSI-RS.
In the embodiment of the present invention, optionally, the CSI-RS cycle corresponds to the DRX cycle.
The network side device provided by the embodiment of the present invention may execute the method embodiments described above, and the implementation principle and the technical effect are similar, which are not described herein again.
As shown in fig. 11, the terminal device 1100 shown in fig. 11 includes: at least one processor 1101, memory 1102, at least one network interface 1104, and a user interface 1103. The various components in end device 1100 are coupled together by a bus system 1105. It is understood that the bus system 605 is used to enable communications among the components. The bus system 1105 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled in fig. 11 as the bus system 1105.
The user interface 1103 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.
It is to be understood that the memory 1102 in embodiments of the present invention can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double data rate Synchronous Dynamic random access memory (ddr DRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 1102 of the subject systems and methods is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 1102 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 11021 and application programs 11022.
The operating system 11021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 11022 contains various applications such as a Media Player (Media Player), a Browser (Browser), etc. for implementing various application services. Programs that implement methods in accordance with embodiments of the invention may be included in application 11022.
In an embodiment of the present invention, by calling the program or instruction stored in the memory 1102, specifically, the program or instruction stored in the application 11022, the following steps are implemented when executing: sending a first message to a network side device, wherein the first message is used for requesting to configure a first CSI-RS in a connection state, an idle state or an inactive state for the terminal device, or requesting to configure a first configuration parameter of the first CSI-RS in the connection state, the idle state or the inactive state for the terminal device; receiving feedback information of the first message from network side equipment; and carrying out signal processing according to the first CSI-RS, or carrying out signal processing according to the first CSI-RS and a synchronous signal block SSB.
In another embodiment of the present invention, by calling the program or instruction stored in the memory 1102, specifically, the program or instruction stored in the application 11022, the following steps are implemented when executing: receiving a third configuration parameter of a second CSI-RS in an idle state or an inactive state from the network side equipment; and carrying out signal processing according to the second CSI-RS, or carrying out signal processing according to the second CSI-RS and SSB.
The terminal device provided by the embodiment of the present invention may execute the method embodiment, and the implementation principle and the technical effect are similar, which are not described herein again.
Referring to fig. 12, fig. 12 is a structural diagram of a network side device applied in the embodiment of the present invention, and as shown in fig. 12, the network side device 1200 includes: a processor 1201, a transceiver 1202, a memory 1203 and a bus interface, wherein:
in an embodiment of the present invention, the network-side device 1200 further includes: a computer program stored on the memory 1203 and executable on the processor 1201, the computer program when executed by the processor 701 implementing the steps of: and sending a third configuration parameter of the second CSI-RS in an idle state or an inactive state to the terminal equipment so that the terminal equipment performs signal processing according to the second CSI-RS, or so that the terminal equipment performs signal processing according to the second CSI-RS and a synchronization signal block SSB.
In another embodiment of the present invention, the network-side device 1200 further includes: a computer program stored on the memory 1203 and executable on the processor 1201, the computer program when executed by the processor 701 implementing the steps of: receiving a first message from a terminal device, wherein the first message is used for requesting to configure a first CSI-RS in a connected state, an idle state or an inactive state for the terminal device, or requesting to configure a first configuration parameter of the first CSI-RS in the connected state, the idle state or the inactive state for the terminal device; and sending feedback information of the first message to the terminal equipment so that the terminal equipment performs signal processing according to the first CSI-RS, or so that the terminal equipment performs signal processing according to the first CSI-RS and a synchronization signal block SSB.
In fig. 12, the bus architecture may include any number of interconnected buses and bridges, with various circuits linking one or more processors, represented by the processor 1201, and memory, represented by the memory 1203. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1202 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
The processor 1201 is responsible for managing a bus architecture and general processing, and the memory 1203 may store data used by the processor 1201 in performing operations.
The network side device provided by the embodiment of the present invention may execute the method embodiments described above, and the implementation principle and the technical effect are similar, which are not described herein again.
The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or in software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, a removable hard disk, a compact disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in a core network interface device. Of course, the processor and the storage medium may reside as discrete components in a core network interface device.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims (33)

1. A signal processing method is applied to terminal equipment, and is characterized in that the method comprises the following steps:
sending a first message to a network side device, wherein the first message is used for requesting to configure a first channel state information reference signal (CSI-RS) in a connection state, an idle state or an inactive state for the terminal device, or is used for requesting to configure a first configuration parameter of the first CSI-RS in the connection state, the idle state or the inactive state for the terminal device;
receiving feedback information of the first message from network side equipment;
and carrying out signal processing according to the first CSI-RS, or carrying out signal processing according to the first CSI-RS and a synchronous signal block SSB.
2. The method of claim 1, wherein the feedback information comprises one or more of: an acknowledgement, ACK, or negative acknowledgement, NACK, of the first message; and a second configuration parameter of the first CSI-RS.
3. The method of claim 1, wherein the signal processing comprises any one or more of:
tracking a time frequency domain;
calculating CSI;
calculating the receiving power of a layer 1 reference signal;
mobility measurement; and
and (4) interference measurement.
4. The method of claim 1, wherein the first CSI-RS comprises at least one of:
a CSI-RS for tracking;
a CSI-RS for calculating a layer 1 reference signal received power;
CSI-RS for mobility;
a CSI-RS of zero power;
a non-zero power CSI-RS.
5. The method of claim 2, wherein the first configuration parameter and the second configuration parameter comprise at least one of: periodic resource allocation, semi-persistent resource allocation, and aperiodic resource allocation.
6. The method of claim 2, wherein the first configuration parameter and the second configuration parameter comprise at least one of:
a CSI-RS period;
a CSI-RS duration;
a CSI-RS offset;
code division multiplexing, CDM, type of CSI-RS;
number of CSI-RS ports;
a CSI-RS pattern or resource mapping;
a CSI-RS density; and
frequency domain resource information of the CSI-RS.
7. The method of claim 6, wherein the CSI-RS period corresponds to a Discontinuous Reception (DRX) period.
8. A signal processing method is applied to terminal equipment, and is characterized in that the method comprises the following steps:
receiving a third configuration parameter of a second CSI-RS in an idle state or an inactive state from the network side equipment;
and carrying out signal processing according to the second CSI-RS, or carrying out signal processing according to the second CSI-RS and SSB.
9. The method according to claim 8, wherein the receiving, from the network-side device, the third configuration parameter of the second CSI-RS in the idle state or the inactive state includes any one of:
when the terminal equipment is in a connected state, receiving a third configuration parameter of a second CSI-RS in an idle state or an inactive state through a system message, a physical layer signaling, a Media Access Control (MAC) signaling or a Radio Resource Control (RRC) signaling;
and when the terminal equipment is in an idle state or an inactive state, receiving a third configuration parameter of a second CSI-RS in the idle state or the inactive state through a system message, a Paging Physical Downlink Control Channel (PDCCH), or the Paging PDCCH and a corresponding Physical Downlink Shared Channel (PDSCH).
10. The method of claim 8, wherein the signal processing comprises any one or more of:
tracking a time frequency domain;
calculating CSI;
calculating the receiving power of a layer 1 reference signal;
mobility measurement; and
and (4) interference measurement.
11. The method of claim 8, wherein the second CSI-RS comprises at least one of:
a CSI-RS for tracking;
a CSI-RS for calculating a layer 1 reference signal received power;
CSI-RS for mobility;
a CSI-RS of zero power;
a non-zero power CSI-RS.
12. The method of claim 8, wherein the third configuration parameter comprises at least one of: periodic resource allocation, semi-persistent resource allocation, and aperiodic resource allocation.
13. The method of claim 8, wherein the third configuration parameter comprises at least one of:
a CSI-RS period;
a CSI-RS duration;
a CSI-RS offset;
a CDM type of CSI-RS;
number of CSI-RS ports;
a CSI-RS pattern or resource mapping;
a CSI-RS density; and
frequency domain resource information of the CSI-RS.
14. The method of claim 13, wherein the CSI-RS cycle corresponds to a DRX cycle.
15. A signal processing method is applied to a network side device, and is characterized by comprising the following steps:
receiving a first message from a terminal device, wherein the first message is used for requesting to configure a first CSI-RS in a connected state, an idle state or an inactive state for the terminal device, or requesting to configure a first configuration parameter of the first CSI-RS in the connected state, the idle state or the inactive state for the terminal device;
and sending feedback information of the first message to the terminal equipment so that the terminal equipment performs signal processing according to the first CSI-RS, or so that the terminal equipment performs signal processing according to the first CSI-RS and a synchronization signal block SSB.
16. The method of claim 15, wherein the feedback information comprises one or more of: an ACK or NACK for the first message; and a second configuration parameter of the first CSI-RS.
17. The method of claim 15, wherein the first CSI-RS comprises at least one of:
a CSI-RS for tracking;
a CSI-RS for calculating a layer 1 reference signal received power;
CSI-RS for mobility;
a CSI-RS of zero power;
a non-zero power CSI-RS.
18. The method of claim 16, wherein the first configuration parameter and the second configuration parameter comprise at least one of: periodic resource allocation, semi-persistent resource allocation, and aperiodic resource allocation.
19. The method of claim 16, wherein the first configuration parameter and the second configuration parameter comprise at least one of:
a CSI-RS period;
a CSI-RS duration;
a CSI-RS offset;
a CDM type of CSI-RS;
number of CSI-RS ports;
a CSI-RS pattern or resource mapping;
a CSI-RS density; and
frequency domain resource information of the CSI-RS.
20. The method of claim 19, wherein the CSI-RS cycle corresponds to a DRX cycle.
21. A signal processing method is applied to a network side device, and is characterized by comprising the following steps:
and sending a third configuration parameter of the second CSI-RS in an idle state or an inactive state to the terminal equipment so that the terminal equipment performs signal processing according to the second CSI-RS, or so that the terminal equipment performs signal processing according to the second CSI-RS and a synchronization signal block SSB.
22. The method of claim 21, wherein the sending the third configuration parameter of the second CSI-RS in the idle state or the inactive state to the terminal device comprises any one of:
sending a third configuration parameter of the second CSI-RS in an idle state or an inactive state to the terminal equipment in a connected state through a system message, a physical layer signaling, an MAC signaling or an RRC signaling;
and sending a third configuration parameter of a second CSI-RS in an idle state or an inactive state to the terminal equipment in the idle state or the inactive state through a system message, a Paging PDCCH, or the Paging PDCCH and the corresponding PDSCH.
23. The method of claim 21, wherein the second CSI-RS comprises at least one of:
a CSI-RS for tracking;
a CSI-RS for calculating a layer 1 reference signal received power;
CSI-RS for mobility;
a CSI-RS of zero power;
a non-zero power CSI-RS.
24. The method of claim 21, wherein the third configuration parameter comprises at least one of: periodic resource allocation, semi-persistent resource allocation, and aperiodic resource allocation.
25. The method of claim 21, wherein the third configuration parameter comprises at least one of:
a CSI-RS period;
a CSI-RS duration;
a CSI-RS offset;
a CDM type of CSI-RS;
number of CSI-RS ports;
a CSI-RS pattern or resource mapping;
a CSI-RS density; and
frequency domain resource information of the CSI-RS.
26. The method of claim 25, wherein the CSI-RS cycle corresponds to a DRX cycle.
27. A terminal device, comprising:
a first sending module, configured to send a first message to a network side device, where the first message is used to request configuration of a first CSI-RS in a connected state, an idle state, or an inactive state for the terminal device, or is used to request configuration of a first configuration parameter of the first CSI-RS in the connected state, the idle state, or the inactive state for the terminal device;
a first receiving module, configured to receive feedback information of the first message from a network side device;
and the first processing module is used for carrying out signal processing according to the first CSI-RS or carrying out signal processing according to the first CSI-RS and a synchronous signal block SSB.
28. A terminal device, comprising:
the second receiving module is used for receiving a third configuration parameter of a second CSI-RS in an idle state or an inactive state from the network side equipment;
and the second processing module is used for carrying out signal processing according to the second CSI-RS or carrying out signal processing according to the second CSI-RS and the SSB.
29. A network-side device, comprising:
a third receiving module, configured to receive a first message from a terminal device, where the first message is used to request configuration of a first CSI-RS in a connected state, an idle state, or an inactive state for the terminal device, or is used to request configuration of a first configuration parameter of the first CSI-RS in the connected state, the idle state, or the inactive state for the terminal device;
and a second sending module, configured to send feedback information of the first message to the terminal device, so that the terminal device performs signal processing according to the first CSI-RS, or so that the terminal device performs signal processing according to the first CSI-RS and a synchronization signal block SSB.
30. A network-side device, comprising:
and a third sending module, configured to send a third configuration parameter of a second CSI-RS in an idle state or an inactive state to a terminal device, so that the terminal device performs signal processing according to the second CSI-RS, or so that the terminal device performs signal processing according to the second CSI-RS and a synchronization signal block SSB.
31. A user device, comprising: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the signal processing method according to any one of claims 1 to 7; alternatively, the steps of implementing a signal processing method according to any one of claims 8 to 14.
32. A network-side device, comprising: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the signal processing method according to any one of claims 15 to 20; alternatively, the steps of implementing a signal processing method according to any one of claims 21 to 26.
33. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the signal processing method according to any one of claims 1 to 7; or, a step of implementing a signal processing method according to any one of claims 8 to 14; or, a step of implementing a signal processing method according to any one of claims 15 to 20; alternatively, the steps of implementing a signal processing method according to any one of claims 21 to 26.
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