CN114124320B - Method and apparatus in a node for wireless communication - Google Patents

Method and apparatus in a node for wireless communication Download PDF

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Publication number
CN114124320B
CN114124320B CN202010862640.9A CN202010862640A CN114124320B CN 114124320 B CN114124320 B CN 114124320B CN 202010862640 A CN202010862640 A CN 202010862640A CN 114124320 B CN114124320 B CN 114124320B
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time
frequency
node
bandwidth
signaling
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CN114124320A (en
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蒋琦
张晓博
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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    • 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
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0071—Allocation based on fairness other than the proportional kind

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

Abstract

A method and apparatus in a node for wireless communication is disclosed. The node first receives first signaling, wherein the first signaling is used for determining a target frequency domain resource set; subsequently receiving a first reference signal in a first set of time-frequency resources; the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target frequency domain resource set comprises frequency domain resources occupied by first type reference signals, and the first reference signals contained in the first type reference signals are used for determining channel quality; the bandwidth of the target frequency domain resource set is equal to a first bandwidth, and the radio frequency bandwidth supported by the first node is equal to a second bandwidth; the first time-frequency resource set belongs to a first time window; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window. The method and the device optimize the channel quality measurement and reporting flow of the terminal with limited bandwidth so as to improve reporting performance.

Description

Method and apparatus in a node for wireless communication
Technical Field
The present application relates to transmission methods and apparatuses in wireless communication systems, and more particularly, to transmission schemes and apparatuses for reduced capability devices in wireless communications.
Background
Future wireless communication systems have more and more diversified application scenes, and different application scenes have different performance requirements on the system. To meet different performance requirements of various application scenarios, research on a New air interface technology (NR, new Radio) (or 5G) is decided on the 3GPP (3 rd Generation Partner Project, third generation partnership project) RAN (Radio Access Network ) #72 full-time, and standardization Work on NR is started on the 3GPP RAN #75 full-time WI (Work Item) that passes the New air interface technology (NR, new Radio).
In the new air interface technology, the application of the internet of things is an important component. Although some new features have been introduced in Release 15 and 16 versions (Release 16) to support different internet of things application scenarios, such as Ultra-reliable low latency communications (URLLC, ultra-reliable and Low Latency Communications) and industrial physical networks (IIoT, industrial Internet of Things), standard support is still required for other application scenarios, such as wearable devices, surveillance videos, etc. Based on the above background, SI (Study Item) passed the reduced capability (RedCap, reduced Capability) (also referred to as NR-Lite in the early stage) at the 3gpp ran#86 full meeting, and the Study was started at Release 17 (Release 17).
Disclosure of Invention
In the NR system, the configuration and reporting manners of the CSI-RS (Channel-State Information Reference Signals, channel state information reference signal) are flexible, and the base station may configure the CSI-RS with a wider Bandwidth, or even a Bandwidth close to BWP (BWP) to obtain more sufficient feedback information. Meanwhile, periodic CSI (Channel State Information ) reporting, SP-CSI (Semi-persistent Channel State Information, semi-persistent channel state information) reporting, and aperiodic (Aperiod CSI) reporting can all be supported by the system to achieve multiple flexible CSI reporting.
When the reduced capability device and the normal device operate under one base station at the same time, the bandwidth occupied by the CSI-RS configured by the base station may be larger than the radio frequency bandwidth of the reduced capability device in consideration of the radio frequency capability of the normal device. Meanwhile, in order to obtain the frequency selectivity gain and improve the scheduling flexibility as much as possible, the base station often hopes that the equipment with reduced capability can report the CSI corresponding to the whole system bandwidth. The above two problems are relatively intuitive solutions, namely, a CSI-RS adapting to the bandwidth capability of the device with reduced capability is configured, and the configured CSI-RS needs to hop frequency over the entire system bandwidth, which will result in a longer period for obtaining CSI, and will additionally increase the overhead of the configuration signaling of the CSI-RS, and affect the CSI-RS configuration of the normal UE.
For problems in narrow radio frequency bandwidth scenarios (such as RedCap), the present application discloses a solution. It should be noted that, in the description of the present application, a user equipment with a narrow bandwidth (such as RedCap) is only used as a typical application scenario or example; the method and the device are also applicable to other scenes with limited receiving or transmitting bandwidth, which face similar problems (for example, in the scene of supporting larger carrier bandwidth, user equipment supporting the existing bandwidth may also face similar problems), and similar technical effects can be achieved. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to the RedCap scenario) also helps to reduce hardware complexity and cost.
Further, embodiments and features of embodiments in a first node device of the present application may be applied to a second node device and vice versa without conflict. In particular, the term (Terminology), noun, function, variable in this application may be interpreted (if not specifically stated) with reference to the definitions in the 3GPP specification protocols TS36 series, TS38 series, TS37 series.
The application discloses a method in a first node for wireless communication, comprising:
Receiving first signaling, the first signaling being used to determine a target set of frequency domain resources;
receiving a first reference signal in a first set of time-frequency resources;
wherein the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between a sender of the first signaling to the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
As an embodiment, the above method is characterized in that: the target frequency domain resource set is reserved and is used for measuring and reporting the CSI-RS of a normal terminal and a narrow-band radio frequency terminal, so that forward compatibility of system CSI-RS configuration is guaranteed, and narrow-band CSI-RS is not required to be configured for the narrow-band radio frequency terminal independently.
As an embodiment, another technical feature of the above method is that: for the narrowband radio frequency terminal, the first time window is predefined, and in the first time window, the first node preferentially performs measurement of the CSI-RS without completely conforming to scheduling of a base station, so that accuracy of CSI reporting is guaranteed.
As an embodiment, the above method is further characterized in that: associating the duration of the first time window with a ratio of the first bandwidth to the second bandwidth; when the ratio is larger, the system bandwidth is far larger than the radio frequency bandwidth, and more time is needed to measure the CSI so as to improve the accuracy; when the ratio is smaller, the system bandwidth is not much larger than the radio frequency bandwidth, and therefore the first time window with the length is not needed to be configured, and the excessive influence of measurement on the adjustment is avoided.
According to one aspect of the application, the first node determines the frequency domain resources occupied by the wireless signal reception in the first time window by itself, or the location of the frequency domain resources occupied by the wireless signal reception in the first time window by the first node is fixed.
As an embodiment, the above method is characterized in that: and the time-frequency resource which can be used for receiving the wireless signal in the first time window is not required to be indicated through signaling, so that signaling overhead is reduced.
According to one aspect of the application, the first signaling is used to determine a starting position of the first time window in the time domain.
As an embodiment, the above method is characterized in that: the first signaling is used for triggering the reporting of the CSI and triggering the starting position of the first time window in the time domain, so that signaling overhead is reduced, and meanwhile, the reported CSI is ensured to be the latest measured result.
According to one aspect of the application, the first signaling is used to indicate configuration parameters of the first type of reference signals; the configuration parameters of the first type of reference signals include at least one of a time domain density of the first type of reference signals, a frequency domain density of the first type of reference signals in the first bandwidth, or a frequency domain density of the first type of reference signals in one resource block; the configuration parameters are used to determine a duration of the first time window in the time domain.
As an embodiment, the above method is characterized in that: the density of the time frequency or the frequency domain of the CSI-RS also affects the duration of the first time window, so that the duration of the first time window is determined more reasonably.
According to one aspect of the application, the first time window comprises K1 time units, the first time unit being one of the K1 time units; the K1 time units respectively comprise K1 candidate time-frequency resource sets, and the first time-frequency resource set is one of the K1 candidate time-frequency resource sets; the first node receives wireless signals in the K1 candidate time-frequency resource sets only in the first time window; the frequency domain positions of the K1 candidate time-frequency resource sets are determined by the first node itself, or the frequency domain positions of the K1 candidate time-frequency resource sets are fixed.
As an embodiment, the above method is characterized in that: in the first time window, the K1 candidate time-frequency resource sets exist in a frequency hopping mode, so that the measured CSI-RS can cover the whole system bandwidth, and the measurement accuracy is improved.
According to one aspect of the present application, there is provided:
receiving second signaling, wherein the second signaling is used for indicating a first time-frequency resource pool and a second time-frequency resource pool;
monitoring a first type of signaling only in the first time-frequency resource pool of the first time-frequency resource pool and the second time-frequency resource pool;
Wherein the first set of time-frequency resources includes the first time-frequency resource pool and the first set of time-frequency resources does not include the second time-frequency resource pool.
As an embodiment, the above method is characterized in that: the first node does not need to follow the configuration of the base station in the first time window, and only receives in the K1 candidate time-frequency resource sets, namely only downlink signals configured in the K1 candidate time-frequency resource sets are received in the first time window.
According to one aspect of the present application, there is provided:
transmitting a first signal;
wherein the first signal comprises a channel quality of the wireless link between a sender of the first signaling to the first node, the first signaling being used to indicate that the transmission of the first signal is periodic or the first signaling being used to indicate that the transmission of the first signal is semi-persistent.
According to one aspect of the application, the frequency domain resources occupied by any two candidate time-frequency resource sets in the K1 candidate time-frequency resource sets are orthogonal, and the bandwidth of the frequency domain resources occupied by the K1 candidate time-frequency resource sets is not less than the first bandwidth.
As an embodiment, the above method is characterized in that: the definition of the K1 candidate time-frequency resource sets ensures that the widest frequency bandwidth is measured in the shortest time, thereby improving the efficiency of measuring and reporting the CSI.
The application discloses a method in a second node for wireless communication, comprising:
transmitting first signaling, the first signaling being used to determine a target set of frequency domain resources;
transmitting a first reference signal in a first set of time-frequency resources;
wherein the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between the second node and a first node, a receiver of the first reference signals comprising the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
According to one aspect of the application, the first node determines the frequency domain resources occupied by the wireless signal reception in the first time window by itself, or the location of the frequency domain resources occupied by the wireless signal reception in the first time window by the first node is fixed.
According to one aspect of the application, the first signaling is used to determine a starting position of the first time window in the time domain.
According to one aspect of the application, the first signaling is used to indicate configuration parameters of the first type of reference signals; the configuration parameters of the first type of reference signals include at least one of a time domain density of the first type of reference signals, a frequency domain density of the first type of reference signals in the first bandwidth, or a frequency domain density of the first type of reference signals in one resource block; the configuration parameters are used to determine a duration of the first time window in the time domain.
According to one aspect of the application, the first time window comprises K1 time units, the first time unit being one of the K1 time units; the K1 time units respectively comprise K1 candidate time-frequency resource sets, and the first time-frequency resource set is one of the K1 candidate time-frequency resource sets; the first node receives wireless signals in the K1 candidate time-frequency resource sets only in the first time window; the frequency domain positions of the K1 candidate time-frequency resource sets are determined by the first node itself, or the frequency domain positions of the K1 candidate time-frequency resource sets are fixed.
According to one aspect of the present application, there is provided:
transmitting second signaling, wherein the second signaling is used for indicating the first time-frequency resource pool and the second time-frequency resource pool;
transmitting a first type of signaling only in the first time-frequency resource pool of the first time-frequency resource pool and the second time-frequency resource pool;
wherein the first set of time-frequency resources includes the first time-frequency resource pool and the first set of time-frequency resources does not include the second time-frequency resource pool.
According to one aspect of the present application, there is provided:
receiving a first signal;
wherein the first signal comprises a channel quality of the wireless link between the second node to the first node, the first signaling being used to indicate that transmission of the first signal is periodic or the first signaling being used to indicate that transmission of the first signal is semi-persistent.
According to one aspect of the application, the frequency domain resources occupied by any two candidate time-frequency resource sets in the K1 candidate time-frequency resource sets are orthogonal, and the bandwidth of the frequency domain resources occupied by the K1 candidate time-frequency resource sets is not less than the first bandwidth.
The application discloses a first node for wireless communication, comprising:
A first receiver that receives first signaling, the first signaling being used to determine a target set of frequency domain resources;
a first transceiver that receives a first reference signal in a first set of time-frequency resources;
wherein the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between a sender of the first signaling to the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
The application discloses a second node for wireless communication, comprising:
a first transmitter that transmits first signaling, the first signaling being used to determine a target set of frequency domain resources;
a second transceiver transmitting a first reference signal in a first set of time-frequency resources;
wherein the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between the second node and a first node, a receiver of the first reference signals comprising the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
As an example, compared to the conventional solution, the present application has the following advantages:
the target frequency domain resource set is reserved and simultaneously used for CSI-RS measurement and reporting of a normal terminal and a narrowband radio frequency terminal, so that forward compatibility of system CSI-RS configuration is guaranteed, and narrowband CSI-RS is not required to be configured for the narrowband radio frequency terminal independently;
for a narrowband radio frequency terminal, the first time window is predefined, and in the first time window, the first node preferentially performs measurement of the CSI-RS without completely conforming to scheduling of a base station, so that the accuracy of CSI reporting is ensured; and associating the duration of the first time window with a ratio of the first bandwidth to the second bandwidth; when the ratio is larger, the system bandwidth is far larger than the radio frequency bandwidth, and more time is needed to measure the CSI so as to improve the accuracy; when the ratio is smaller, the system bandwidth is not much larger than the radio frequency bandwidth, and therefore the first time window with a longer length is not needed to be configured, and the excessive influence of measurement on the adjustment is avoided;
in the first time window, the K1 candidate time-frequency resource sets exist in a frequency hopping mode, so that the measured CSI-RS can cover the whole system bandwidth, and the measurement accuracy is improved; the definition of the K1 candidate time-frequency resource sets ensures that the widest frequency bandwidth is measured in the shortest time, thereby improving the efficiency of measuring and reporting the CSI.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings in which:
FIG. 1 illustrates a process flow diagram of a first node according to one embodiment of the present application;
FIG. 2 shows a schematic diagram of a network architecture according to one embodiment of the present application;
fig. 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to one embodiment of the present application;
FIG. 4 shows a schematic diagram of a first communication device and a second communication device according to one embodiment of the present application;
fig. 5 shows a flow chart of a first signaling according to an embodiment of the present application;
fig. 6 shows a flow chart of second signaling according to an embodiment of the present application;
FIG. 7 illustrates a schematic diagram of a target frequency domain resource according to one embodiment of the present application;
FIG. 8 shows a schematic diagram of a first type of reference signal according to one embodiment of the present application;
FIG. 9 shows a schematic diagram of a set of K1 candidate time-frequency resources according to one embodiment of the present application;
fig. 10 shows a schematic diagram of a first time-frequency resource pool and a second time-frequency resource pool according to an embodiment of the present application;
FIG. 11 shows a schematic diagram of a first time window according to one embodiment of the present application;
fig. 12 shows a block diagram of a processing arrangement in a first node device according to an embodiment of the present application;
fig. 13 shows a block diagram of a processing apparatus in a second node device according to an embodiment of the present application.
Detailed Description
The technical solution of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be arbitrarily combined with each other.
Example 1
Embodiment 1 illustrates a process flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application receives first signaling in step 101, the first signaling being used to determine a target set of frequency domain resources; a first reference signal is received in a first set of time-frequency resources in step 102.
In embodiment 1, the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between a sender of the first signaling to the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
As an embodiment, the first signaling comprises RRC (Radio Resource Control ) signaling.
As a sub-embodiment of this embodiment, the RRC signaling is used to indicate the frequency domain resources occupied by the target set of frequency domain resources.
As an embodiment, the first signaling comprises physical layer dynamic signaling.
As an embodiment, the first signaling includes PDCCH (Physical Downlink Control Channel ).
As an embodiment, the first signaling includes DCI (Downlink Control Information ).
As an embodiment, the first signaling is used to activate feedback of the channel quality of the wireless link between the sender of the first signaling and the first node.
As an embodiment, the first signaling is used to indicate a frequency domain location of an RB (Resource Block) occupied by the target frequency domain Resource set.
As an embodiment, the target frequency domain resource set includes frequency domain resources corresponding to a positive integer number of consecutive RBs greater than 1.
As an embodiment, the first signaling is cell-specific.
As an embodiment, the first signaling is user equipment specific.
As an embodiment, the first signaling includes a locationandband field in an IE (Information Element ) BWP in TS 38.331.
As an embodiment, the first signaling includes a startingRB field in IE CSI-frequency allocation in TS 38.331.
As an embodiment, the first signaling includes an nrofRBs field in IE CSI-frequency allocation in TS 38.331.
As an embodiment, the first signaling includes the CSI-RS-MeasurementBW field in IE CSI-RS-ResourceConfigMobility in TS 38.331.
As an embodiment, the first signaling includes a density field in IE CSI-RS-resource mapping in TS 38.331.
As an embodiment, the first signaling includes a freqBand field in IE CSI-RS-resource mapping in TS 38.331.
As an embodiment, the first reference signal comprises a CSI-RS.
As an embodiment, the first reference signal comprises a DMRS (Demodulation Reference Signal ).
As an embodiment, the first reference signal includes SSB (SS/PBCH Block, synchronization signal/physical broadcast channel Block).
As an embodiment, the first reference signal occupies one CSI-RS Resource (Resource).
As an embodiment, the first reference signal occupies one CSI-RS Resource Set (Resource Set).
As an embodiment, the first reference signal corresponds to one CSI-RS-Index.
As an embodiment, the first reference signal corresponds to one CSI-RS-Index.
As an embodiment, the first reference signal corresponds to one NZP-CSI-RS-resource id.
As an embodiment, the first reference signal corresponds to an NZP-CSI-RS-ResourceSetID.
As an embodiment, the first reference signal corresponds to one ZP-CSI-RS-resource id.
As an embodiment, the first reference signal corresponds to a ZP-CSI-RS-ResourceSetID.
As an embodiment, the first reference signal corresponds to a CSI-IM-resource id.
As an embodiment, the first reference signal corresponds to a CSI-IM-ResourceSetID.
As one embodiment, the target set of frequency domain resources occupies M1 subcarriers (subcarriers), the first set of time frequency resources occupies L1 subcarriers, any one subcarrier of the L1 subcarriers is one of the M1 subcarriers, both L1 and M1 are positive integers greater than 1, and the M1 is greater than the L1.
As an embodiment, the first set of time-frequency resources occupies a positive integer number of REs (Resource elements) greater than 1.
As an embodiment, the first reference signal is a reference signal of which the first type of reference signal is located in the first set of time-frequency resources.
As an embodiment, the channel quality comprises RSRP (Reference Signal Received Power ).
As an embodiment, the channel quality comprises RSRQ (Reference Signal Receiving Quality, reference signal received quality).
As an embodiment, the channel quality comprises RSSI (Received Signal Strength Indicator, received channel strength indication).
As an embodiment, the channel quality includes a BLER (Block Error Rate).
As an embodiment, the channel quality comprises SNR (Signal To Noise Ratio ).
As an embodiment, the channel quality comprises SINR (Signal to Interference plus Noise Ratio ).
As an embodiment, the channel quality comprises CSI.
As an embodiment, the channel quality comprises CQI (Channel Quality Indicator, channel quality indication).
As an embodiment, the channel quality comprises PMI (Precoding Matrix Indicator ).
As an embodiment, the channel quality comprises CRI (CSI-RS Resource Indicator, channel state information reference signal resource indication).
As an embodiment, the channel quality comprises SSBRI (SSB Resource Indicator, SSB resource indication).
As an embodiment, the channel quality includes LI (Layer Indicator).
As an embodiment, the channel quality includes RI (Rank Indicator).
As an embodiment, the channel quality comprises L1-RSRP (layer one reference signal received power).
As an embodiment, the meaning that the bandwidth occupied by the target set of frequency domain resources in the above phrase is equal to the first bandwidth includes: the target frequency domain Resource set occupies M2 RBs (Resource blocks), wherein M2 is a positive integer greater than 1, and the frequency bandwidth covered from the RB with the smallest index of the M2 RBs to the RB with the largest index of the M2 RBs is equal to the first bandwidth.
As an embodiment, the meaning that the bandwidth occupied by the target set of frequency domain resources in the above phrase is equal to the first bandwidth includes: the target frequency domain resource set occupies M1 subcarriers, M1 is a positive integer greater than 1, and the frequency bandwidth covered from the subcarrier with the smallest central frequency point in the M1 subcarriers to the subcarrier with the largest central frequency point in the M1 subcarriers is equal to the first bandwidth.
As an embodiment, the meaning that the bandwidth occupied by the target set of frequency domain resources in the above phrase is equal to the first bandwidth includes: the target frequency domain resource set occupies M2 RBs, M2 is a positive integer greater than 1, M2 RBs are continuous, and the frequency bandwidth covered by the M2 RBs is equal to the first bandwidth.
As an embodiment, the first bandwidth is not less than 20MHz (megahertz).
As an embodiment, the first bandwidth is not less than 50MHz.
As an embodiment, the second bandwidth is equal to 20MHz.
As an embodiment, the second bandwidth is equal to 50MHz.
As an embodiment, the first bandwidth is not less than X1 times the second bandwidth, and X1 is a positive integer greater than 2.
As an embodiment, the first bandwidth is equal to X1 times the second bandwidth, and X1 is a positive integer greater than 2.
As an embodiment, the first time unit is a Slot (Slot).
As an embodiment, the first time unit is a Mini-slot (Mini-slot).
As an embodiment, the first time unit is a Sub-slot (Sub-slot).
As an embodiment, the first time unit is equal to the duration of a positive integer number of consecutive OFDM (Orthogonal Frequency Division Multiplexing ) symbols.
As an embodiment, the first time unit is a subframe.
As one embodiment, the ratio of the first bandwidth to the second bandwidth is equal to Y, the duration of the first time window in the time domain is equal to Y1 time units, Y1 is a positive integer greater than 1, and Y1 is a minimum integer not less than Y.
As an embodiment, the ratio of the first bandwidth to the second bandwidth is equal to Y, the duration of the first time window in the time domain is equal to Y1 time units, Y1 is a positive integer greater than 1, and Y1 is a maximum integer not greater than Y.
As one embodiment, the ratio of the first bandwidth to the second bandwidth is equal to Y, the duration of the first time window in the time domain is equal to Y1 x Y3 slots, Y1 is a positive integer greater than 1, and Y1 is a minimum integer not less than Y; the Y3 is a non-negative integer and the Y3 is fixed or the Y3 is configured by higher layer signaling.
As one embodiment, the ratio of the first bandwidth to the second bandwidth is equal to Y, the duration of the first time window in the time domain is equal to Y1 x Y3 slots, Y1 is a positive integer greater than 1, and Y1 is a maximum integer not greater than Y; the Y3 is a non-negative integer and the Y3 is fixed or the Y3 is configured by higher layer signaling.
As an embodiment, the duration of the first time window in the time domain increases with an increasing ratio of the first bandwidth to the second bandwidth.
As an embodiment, the duration of the first time window in the time domain decreases with a decreasing ratio of the first bandwidth to the second bandwidth.
As an embodiment, the first signaling is transmitted over a wireless interface.
As an embodiment, the first signaling is transmitted over an air interface.
As an embodiment, the first signaling is transmitted internally within the first node device.
As an embodiment, the first signaling is passed from a Higher Layer (Higher Layer) of the first node device to a Physical Layer (Physical Layer).
As an embodiment, the first signaling is higher layer signaling.
As an embodiment, the first signaling is physical layer signaling.
As an embodiment, the first signaling comprises MAC (Medium Access Control ) layer signaling.
As an embodiment, the first signaling is user equipment Specific (UE-Specific).
As an embodiment, the first signaling is Cell-Specific.
As an embodiment, the first signaling is user equipment group specific (UE Group Specific).
Example 2
Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.
Fig. 2 illustrates a diagram of a network architecture 200 of a 5g nr, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System ) 200 as some other suitable terminology. EPS 200 may include one or more UEs (User Equipment) 201, ng-RAN (next generation radio access Network) 202, epc (Evolved Packet Core )/5G-CN (5G Core Network) 210, hss (Home Subscriber Server ) 220, and internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the EPC/5G-CN 210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the EPC/5G-CN 210 through an S1/NG interface. EPC/5G-CN 210 includes MME (Mobility Management Entity )/AMF (Authentication Management Field, authentication management domain)/UPF (User Plane Function ) 211, other MME/AMF/UPF214, S-GW (Service Gateway) 212, and P-GW (Packet Date Network Gateway, packet data network Gateway) 213. The MME/AMF/UPF211 is a control node that handles signaling between the UE201 and the EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW212, which S-GW212 itself is connected to P-GW213. The P-GW213 provides UE IP address assignment as well as other functions. The P-GW213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.
As an embodiment, the UE201 corresponds to the first node in the present application.
As an embodiment, the UE201 is a reduced capability (Reduced Capability) terminal.
As an embodiment, the radio frequency capability of the UE201 is smaller than that of a normal terminal.
As an embodiment, the bandwidth supported by the UE201 is not greater than 100MHz.
As an embodiment, the bandwidth supported by the UE201 is at least one of 20MHz,50MHz, or 100MHz.
As an embodiment, the gNB203 corresponds to the second node in the present application.
As an embodiment, the gNB203 supports serving both normal terminals and reduced capability terminals on one carrier.
As an embodiment, the gNB203 supports serving both normal terminals and reduced capability terminals on one BWP.
As an embodiment, the bandwidth supported by the gNB203 is greater than the bandwidth corresponding to the radio frequency capability of the first node.
Example 3
Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture according to one user plane and control plane of the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 between a first communication node device (UE, RSU in gNB or V2X) and a second communication node device (gNB, RSU in UE or V2X) in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device through PHY301. The L2 layer 305 includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and a PDCP (Packet Data Convergence Protocol ) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering the data packets, and the PDCP sublayer 304 also provides handoff support for the first communication node device to the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out of order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resouce Control, radio resource control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same for the physical layer 351, PDCP sublayer 354 in the L2 layer 355, RLC sublayer 353 in the L2 layer 355 and MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (Service Data Adaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and data radio bearers (DRBs, data Radio Bearer) to support diversity of traffic. Although not shown, the first communication node apparatus may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., remote UE, server, etc.).
As an embodiment, the radio protocol architecture in fig. 3 is applicable to the first node in the present application.
As an embodiment, the radio protocol architecture in fig. 3 is applicable to the second node in the present application.
As an embodiment, PDCP304 of the second communication node device is used to generate a schedule for the first communication node device.
As one embodiment, PDCP354 of the second communication node device is used to generate a schedule for the first communication node device.
As an embodiment, the first signaling in the present application is generated in the PHY301 or the PHY351.
As an embodiment, the first signaling in the present application is generated in the MAC302 or the MAC352.
As an embodiment, the first signaling in the present application is generated in the RRC306.
As an embodiment, the first reference signal in the present application is generated in the MAC302 or the MAC352.
As an embodiment, the first reference signal in the present application is generated in the PHY301 or the PHY351.
As an embodiment, the first reference signal in the present application is generated in the RRC306.
As an embodiment, the first type of reference signal is generated in the MAC302 or the MAC352.
As an embodiment, the first type of reference signal is generated in the PHY301 or the PHY351.
As an embodiment, the first type of reference signal is generated in the RRC306.
As an embodiment, the second signaling in the present application is generated in the PHY301 or the PHY351.
As an embodiment, the second signaling in the present application is generated in the MAC302 or the MAC352.
As an embodiment, the second signaling in the present application is generated in the RRC306.
As an embodiment, the first type of signaling in the present application is generated in the PHY301 or the PHY351.
As an embodiment, the first type of signaling in the present application is generated in the MAC302 or the MAC352.
As an embodiment, the first type signaling in the present application is generated in the RRC306.
As an embodiment, the first signal in the present application is generated in the PHY301 or the PHY351.
As an embodiment, the first signal in the present application is generated in the MAC302 or the MAC352.
As an embodiment, the first signal in the present application is generated in the RRC306.
As an embodiment, the second node is a terminal.
Example 4
Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in fig. 4. Fig. 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.
The first communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.
The second communication device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.
In the transmission from the second communication device 410 to the first communication device 450, upper layer data packets from the core network are provided to a controller/processor 475 at the second communication device 410. The controller/processor 475 implements the functionality of the L2 layer. In the transmission from the second communication device 410 to the first communication device 450, a controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., physical layer). Transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal clusters based on various modulation schemes, e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM). The multi-antenna transmit processor 471 digitally space-precodes the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. A transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying the time domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 to a radio frequency stream and then provides it to a different antenna 420.
In a transmission from the second communication device 410 to the first communication device 450, each receiver 454 receives a signal at the first communication device 450 through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream that is provided to a receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions for the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multicarrier symbol stream after receiving the analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, wherein the reference signal is to be used for channel estimation, and the data signal is subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals that were transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller/processor 459. The controller/processor 459 implements the functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.
In the transmission from the first communication device 450 to the second communication device 410, a data source 467 is used at the first communication device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit functions at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming, with the multi-antenna transmit processor 457 performing digital multi-antenna spatial precoding, after which the transmit processor 468 modulates the resulting spatial stream into a multi-carrier/single-carrier symbol stream, which is analog precoded/beamformed in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides it to an antenna 452.
In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement the functions of the L1 layer. The controller/processor 475 implements L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, a controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from the controller/processor 475 may be provided to the core network.
As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus of the first communication device 450 to at least: receiving first signaling, the first signaling being used to determine a target set of frequency domain resources; and receiving a first reference signal in a first set of time-frequency resources; the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between a sender of the first signaling to the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
As an embodiment, the first communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving first signaling, the first signaling being used to determine a target set of frequency domain resources; and receiving a first reference signal in a first set of time-frequency resources; the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between a sender of the first signaling to the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: transmitting first signaling, the first signaling being used to determine a target set of frequency domain resources; and transmitting a first reference signal in the first set of time-frequency resources; the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between the second node and a first node, a receiver of the first reference signals comprising the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting first signaling, the first signaling being used to determine a target set of frequency domain resources; and transmitting a first reference signal in the first set of time-frequency resources; the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between the second node and a first node, a receiver of the first reference signals comprising the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
As an embodiment, the first communication device 450 corresponds to a first node in the present application.
As an embodiment, the second communication device 410 corresponds to a second node in the present application.
As an embodiment, the first communication device 450 is a UE.
As an embodiment, the first communication device 450 is a terminal.
As an embodiment, the second communication device 410 is a base station.
As an embodiment, the second communication device 410 is a terminal.
As an embodiment, the second communication device 410 is a UE.
As an embodiment, the second communication device 410 is a network device.
As one embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least the first four of the controller/processors 459 are used to receive first signaling; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least the first four of the controller/processors 475 are used to transmit first signaling.
As one embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least the first four of the controller/processors 459 are configured to receive a first reference signal in a first set of time-frequency resources; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least the first four of the controllers/processors 475 are used to transmit the first reference signal in the first set of time-frequency resources.
As one embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least the first four of the controller/processors 459 are used to receive second signaling; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least the first four of the controller/processor 475 are used to transmit second signaling.
As one embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least the first four of the controller/processor 459 are used to monitor the first type of signaling only in the first one of the first and second time-frequency resource pools; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least the first four of the controller/processor 475 are used to transmit the first type of signaling only in the first one of the first and second time-frequency resource pools.
As one implementation, the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, at least the first four of the controller/processor 459 are used to transmit a first signal; the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, at least the first four of the controller/processors 475 are used to receive a first signal.
Example 5
Embodiment 5 illustrates a flow chart of a first signaling, as shown in fig. 5. In fig. 5, the first node U1 and the second node N2 communicate via a wireless link. It is specifically described that the order in the present embodiment is not limited to the order of signal transmission and the order of implementation in the present application. The sub-embodiment of embodiment 5, the subsidiary embodiment can be applied to embodiment 6 without conflict.
For the followingFirst node U1The first signaling is received in step S10, the first reference signal is received in the first set of time-frequency resources in step S11, and the first signal is transmitted in step S12.
For the followingSecond node N2The first signaling is transmitted in step S20, the first reference signal is transmitted in the first set of time-frequency resources in step S21, and the first signal is received in step S22.
In embodiment 5, the first signaling is used to determine a target set of frequency domain resources, where frequency domain resources occupied by the first set of time-frequency resources belong to the target set of frequency domain resources; the target frequency domain resource set comprises frequency domain resources occupied by first-class reference signals, wherein the first-class reference signals comprise the first reference signals, and the first reference signals are used for determining the channel quality of a wireless link between the second node N2 and the first node U1; the frequency bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node U1 is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; a ratio of the first bandwidth to the second bandwidth is used to determine a duration of the first time window in the time domain; the first signal comprises a channel quality of the radio link between the second node to the first node U1, the first signaling being used to indicate that the transmission of the first signal is periodic or the first signaling being used to indicate that the transmission of the first signal is semi-continuous.
As an embodiment, the first node U1 determines the frequency domain resources occupied by receiving the radio signal in the first time window by itself, or the location of the frequency domain resources occupied by receiving the radio signal by the first node U1 in the first time window is fixed.
As a sub-embodiment of this embodiment, the meaning of the above sentence that the first node U1 determines, by itself, the frequency domain resource occupied by the radio signal reception in the first time window includes: the first node U1 does not need to receive a downlink signal on the time-frequency resource configured by the second node N2 in the first time window.
As an additional embodiment of this sub-embodiment, the downlink signal comprises PDCCH (Physical Downlink Control Channel ).
As an additional embodiment of this sub-embodiment, the downlink signal includes PDSCH (Physical Downlink Shared Channel ).
As an auxiliary embodiment of this sub-embodiment, the meaning of the second node N2 configuration includes the base station being indicated by RRC signaling.
As an subsidiary embodiment of this sub-embodiment, the meaning of said second node N2 configuration includes the base station being indicated by physical layer signaling.
As an subsidiary embodiment of this sub-embodiment, said second node N2 is a base station.
As a sub-embodiment of this embodiment, the meaning that the location of the frequency domain resource occupied by the first node U1 for receiving the radio signal in the first time window is fixed includes: the first node U1 receives the downlink signal only on a part of the time-frequency resources in the first time window, and the part of the time-frequency resources is not configured by the base station.
As an additional embodiment of this sub-embodiment, the downlink signal comprises PDCCH.
As an additional embodiment of this sub-embodiment, the downlink signal includes PDSCH.
As an subsidiary embodiment of this sub-embodiment, the time-frequency locations of said portions of time-frequency resources in said first time window are fixed.
As an subsidiary embodiment of this sub-embodiment, the time-frequency locations of said portion of time-frequency resources in said first time window are not updatable by RRC signaling.
As an embodiment, the first signaling is used to determine a starting position of the first time window in the time domain.
As a sub-embodiment of this embodiment, the first time window comprises K1 time units, and the first signaling is used to indicate the earliest time unit in the time domain among the K1 time units.
As an subsidiary embodiment of this sub-embodiment, said K1 time units are K1 time slots, respectively.
As an subsidiary embodiment of this sub-embodiment, said K1 time units are K1 subframes respectively.
As an subsidiary embodiment of this sub-embodiment, said K1 time units are consecutive in the time domain.
As an subsidiary embodiment of this sub-embodiment, said target set of frequency domain resources is reserved for transmission of semi-persistent CSI-RS.
As a sub-embodiment of this embodiment, the first time window includes K1 time slots, and the first signaling is used to indicate a time slot sequence number corresponding to an earliest time slot in the time domain among the K1 time slots.
As an subsidiary embodiment of this sub-embodiment, said first signaling is used to indicate the frame number of the radio frame in which the earliest time slot of said K1 time slots is located.
As a sub-embodiment of this embodiment, the first signaling includes a first sub-signaling used to indicate the target set of frequency domain resources and a second sub-signaling used to indicate a starting position of the first time window in the time domain.
As an additional embodiment of this sub-embodiment, the first sub-signaling is RRC signaling.
As an subsidiary embodiment of this sub-embodiment, said second sub-signaling is physical layer dynamic signaling.
As an additional embodiment of this sub-embodiment, the second sub-signaling is MAC CE (Control Elements).
As an additional embodiment of this sub-embodiment, the second sub-signaling is DCI.
As an embodiment, the first signaling is used to indicate configuration parameters of the first type of reference signals; the configuration parameters of the first type of reference signals include at least one of a time domain density of the first type of reference signals, a frequency domain density of the first type of reference signals in the first bandwidth, or a frequency domain density of the first type of reference signals in one resource block; the configuration parameters are used to determine a duration of the first time window in the time domain.
As a sub-embodiment of this embodiment, the first signaling comprises an IECSI-resource policy and offset in TS 38.331.
As an subsidiary embodiment of this sub-embodiment, said IE CSI-resourcepoxidityandoffset is used to indicate the time domain density of said first type of reference signals.
As a sub-embodiment of this embodiment, the first signaling includes a frequencydomaimalloperation field in IE CSI-RS-resource mapping in TS 38.331.
As an subsidiary embodiment of this sub-embodiment, the frequency domain is used to indicate the frequency domain density of the first type reference signal in one RB.
As a sub-embodiment of this embodiment, the first signaling includes a density field in IE CSI-RS-resource mapping in TS 38.331.
As an subsidiary embodiment of this sub-embodiment, said density field is used to indicate the frequency domain density of said first type of reference signals in said first bandwidth.
As a sub-embodiment of this embodiment, the time domain density of the first type reference signal is one of Q1 candidate time domain densities, the Q1 candidate densities respectively correspond to Q1 first type candidate parameters, and the first type candidate parameters corresponding to the candidate time domain densities employed by the first type reference signal are used to determine the duration of the first time window in the time domain.
As an subsidiary embodiment of this sub-embodiment, the time domain density of the first type of reference signal is a first candidate time domain density of Q1 candidate time domain densities, the first candidate time domain density corresponding to a first candidate parameter of the Q1 first type of candidate parameters, the duration of the first time window in the time domain being linearly related to the first candidate parameter.
As an subsidiary embodiment of this sub-embodiment, the duration of said first time window in the time domain is equal to K1 time windows, said K1 being equal to the product of K2 and said first candidate parameter, the ratio of said first bandwidth to said second bandwidth being used to determine said K2; the K2 is a positive integer greater than 1.
As a subsidiary embodiment of this sub-embodiment, the Q1 candidate time-domain densities include at least greater than 1 configuration in IE CSI-resourceiodicity and offset in TS 38.331, slots4, slots5, slots8, slots10, slots16, slots20, slots32, slots40, slots64, slots80, slots160, slots320, slots 640.
As an subsidiary embodiment of this sub-embodiment, the duration of said first time window in the time domain decreases with an increasing density of said first type reference signals in the time domain.
As an subsidiary embodiment of this sub-embodiment, the duration of said first time window in the time domain increases with a decrease in the density of said first type of reference signals in the time domain.
As a sub-embodiment of this embodiment, the frequency domain density of the first type reference signal in the first bandwidth is one of 3 first type candidate frequency domain densities, the 3 first type candidate frequency domain densities being respectively dot5, one and thread in the density domain in the IECSI-resource wideband offset in TS 38.331; the 3 types of candidate frequency domain densities respectively correspond to 3 types of candidate parameters of a second type, and the candidate parameters of the second type corresponding to the frequency domain densities adopted by the first type of reference signals in the first bandwidth are used for determining the duration time of the first time window in the time domain.
As an subsidiary embodiment of this sub-embodiment, the frequency domain density employed by the first type of reference signal in the first bandwidth is a first candidate frequency domain density of the 3 first type of candidate frequency domain densities, the first candidate frequency domain density corresponding to a second candidate parameter of the 3 second type of candidate parameters, the duration of the first time window in the time domain being linearly related to the second candidate parameter.
As an example of this subordinate embodiment, the duration of the first time window in the time domain is equal to K1 time windows, the K1 is equal to the product of K2 and the second candidate parameter, and the ratio of the first bandwidth to the second bandwidth is used to determine the K2; the K2 is a positive integer greater than 1.
As an subsidiary embodiment of this sub-embodiment, the duration of said first time window in the time domain decreases with an increasing frequency domain density employed by said first type of reference signals in said first bandwidth.
As an subsidiary embodiment of this sub-embodiment, the duration of said first time window in the time domain increases with a decrease in the frequency domain density employed by said first type of reference signal in said first bandwidth.
As a sub-embodiment of this embodiment, the frequency domain density of the first type reference signal in one RB is one of 4 second type candidate frequency domain densities, which are respectively row1, row2, row4 and other in the frequency domain of the frequencydomainalllocation in the IE CSI-resource wideband and offset in TS 38.331; the 4 types of candidate frequency domain densities respectively correspond to 4 types of candidate parameters of a third type, and the candidate parameters of the third type corresponding to the frequency domain densities adopted by the first type of reference signals in the first bandwidth are used for determining the duration time of the first time window in the time domain.
As an subsidiary embodiment of this sub-embodiment, the frequency domain density adopted by the first type of reference signal in one RB is a second candidate frequency domain density of 4 second type of candidate frequency domain densities, the second candidate frequency domain density corresponding to a third candidate parameter of the 4 third type of candidate parameters, and the duration of the first time window in the time domain is linearly related to the third candidate parameter.
As an example of this subordinate embodiment, the duration of the first time window in the time domain is equal to K1 time windows, the K1 is equal to the product of K2 and the third candidate parameter, and the ratio of the first bandwidth to the second bandwidth is used to determine the K2; the K2 is a positive integer greater than 1.
As an subsidiary embodiment of this sub-embodiment, the duration of said first time window in the time domain decreases with increasing frequency domain density employed by said first type of reference signal in one RB.
As an subsidiary embodiment of this sub-embodiment, the duration of said first time window in the time domain increases with a decrease in the frequency domain density employed by said first type of reference signal in one RB.
As an embodiment, the first time window comprises K1 time units, the first time unit being one of the K1 time units; the K1 time units respectively comprise K1 candidate time-frequency resource sets, and the first time-frequency resource set is one of the K1 candidate time-frequency resource sets; the first node U1 receives wireless signals only in the K1 candidate time-frequency resource sets in the first time window; the frequency domain positions of the K1 candidate time-frequency resource sets are determined by the first node itself, or the frequency domain positions of the K1 candidate time-frequency resource sets are fixed.
As a sub-embodiment of this embodiment, the K1 time units are consecutive in the time domain.
As a sub-embodiment of this embodiment, the K1 time units are discrete in the time domain.
As a sub-embodiment of this embodiment, the first type of reference signal includes K1 sub-signals, and the K1 sub-signals are respectively transmitted by the second node N2 in the K1 candidate time-frequency resource sets.
As an subsidiary embodiment of this sub-embodiment, said K1 sub-signals comprise CSI-RS.
As an subsidiary embodiment of this sub-embodiment, said K1 sub-signals comprise SSBs.
As an subsidiary embodiment of this sub-embodiment, the K1 sub-signals have a different time domain density in the first time window than the time domain density of the first type of reference signals configured by the first signaling.
As a sub-embodiment of this embodiment, the time domain density employed by the first type of reference signal in the first time window is different from the time domain density employed by the first type of reference signal in time domain resources outside the first time window.
As an subsidiary embodiment of this sub-embodiment, said first type of reference signal is transmitted over each time slot comprised in said first time window using a time domain density in said first time window.
As an subsidiary embodiment of this sub-embodiment, the time domain density employed by said first type of reference signals in said other time domain resources is indicated by said first signalling.
As an embodiment, the physical layer channel carrying the first signal comprises a PUCCH (Physical Uplink Control Channel ).
As an embodiment, the physical layer channel carrying the first signal includes PUSCH (Physical Uplink Shared Channel ).
As an embodiment, the first signal includes UCI (Uplink Control Information ).
As an embodiment, the first signal comprises an RSRP of the wireless link between the sender of the first signaling and the first node U1.
As an embodiment, the first signal comprises an RSRQ of the wireless link between the second node N2 to the first node U1.
As an embodiment, the first signal comprises an RSSI of the wireless link between the second node N2 to the first node U1.
As an embodiment, the first signal comprises a BLER of the radio link between the second node N2 and the first node.
As an embodiment, the first signal comprises an SNR of the wireless link between the second node N2 to the first node U1.
As an embodiment, the first signal comprises SINR of the wireless link between the second node N2 to the first node U1.
As an embodiment, the first signal comprises CSI of the radio link between the second node N2 to the first node U1.
As an embodiment, the first signal comprises a CQI of the radio link between the second node N2 and the first node.
As an embodiment, the first signal comprises a PMI of the wireless link between the second node N2 to the first node U1.
As an embodiment, the first signal comprises CRI of the wireless link between the second node N2 to the first node U1.
As an embodiment, the first signal comprises an SSBRI of the wireless link between the second node N2 to the first node U1.
As an embodiment, the first signal comprises LI of the wireless link between the second node N2 and the first node U1.
As an embodiment, the first signal comprises an RI of the radio link between the sender of the first signaling to the first node U1.
As an embodiment, the first signal comprises an L1-RSRP of the wireless link between the second node N2 to the first node U1.
As an embodiment, the frequency domain resources occupied by any two candidate time-frequency resource sets in the K1 candidate time-frequency resource sets are orthogonal, and the bandwidth of the frequency domain resources occupied by the K1 candidate time-frequency resource sets is not less than the first bandwidth.
As a sub-embodiment of this embodiment, the meaning of the sentence "the frequency domain resources occupied by any two candidate time-frequency resource sets in the K1 candidate time-frequency resource sets are orthogonal" includes: and the frequency domain resources occupied by any two candidate time-frequency resource sets in the K1 candidate time-frequency resource sets simultaneously belong to one subcarrier are not existed.
As a sub-embodiment of this embodiment, the meaning of the sentence "the frequency domain resources occupied by any two candidate time-frequency resource sets in the K1 candidate time-frequency resource sets are orthogonal" includes: the frequency domain resources occupied by any two candidate time-frequency resource sets in the K1 candidate time-frequency resource sets are not overlapped in the frequency domain.
As a sub-embodiment of this embodiment, the meaning of the sentence "the frequency domain resources occupied by any two candidate time-frequency resource sets in the K1 candidate time-frequency resource sets are orthogonal" includes: the frequency domain resources occupied by any two candidate time-frequency resource sets in the K1 candidate time-frequency resource sets are not shared in the frequency domain.
As a sub-embodiment of this embodiment, the meaning of the sentence "the bandwidth of the frequency domain resource commonly occupied by the K1 candidate time-frequency resource sets is not smaller than the first bandwidth" includes: the first bandwidth occupies W1 RBs in a frequency domain, any one of the W1 RBs belongs to the RB occupied by one candidate time-frequency resource set in the K1 candidate time-frequency resource sets, and W1 is a positive integer greater than 1.
As a sub-embodiment of this embodiment, the meaning of the sentence "the bandwidth of the frequency domain resource commonly occupied by the K1 candidate time-frequency resource sets is not smaller than the first bandwidth" includes: the first bandwidth occupies W2 subcarriers in a frequency domain, any subcarrier in the W2 subcarriers belongs to a subcarrier occupied by one candidate time-frequency resource set in the K1 candidate time-frequency resource sets, and W2 is a positive integer greater than 1.
As a sub-embodiment of this embodiment, the meaning of the sentence "the bandwidth of the frequency domain resource commonly occupied by the K1 candidate time-frequency resource sets is not smaller than the first bandwidth" includes: the K1 candidate time-frequency resource sets occupy W3 RBs in the frequency domain, W3 is a positive integer greater than 1, and at least one RB in the W3 RBs is an RB except the RB occupied by the first bandwidth.
As a sub-embodiment of this embodiment, the meaning of the sentence "the bandwidth of the frequency domain resource commonly occupied by the K1 candidate time-frequency resource sets is not smaller than the first bandwidth" includes: the K1 candidate time-frequency resource sets occupy W4 subcarriers in the frequency domain, W4 is a positive integer greater than 1, and at least one subcarrier in the W4 subcarriers is a subcarrier except the subcarrier occupied by the first bandwidth.
As a sub-embodiment of this embodiment, any candidate time-frequency resource set of the K1 candidate time-frequency resource sets occupies Z1 RBs, where Z1 is a positive integer greater than 1.
As an subsidiary embodiment of this sub-embodiment, said Z1 is fixed.
As an subsidiary embodiment of this sub-embodiment, said Z1 is equal to the number of RBs occupied by said second bandwidth.
Example 6
Embodiment 6 illustrates a flow chart of a second signaling, as shown in fig. 6. In fig. 6, the first node U3 and the second node N4 communicate via a wireless link. It is specifically described that the order in the present embodiment is not limited to the order of signal transmission and the order of implementation in the present application.
For the followingFirst node U3The second signaling is received in step S30, and the first type of signaling is monitored in step S31 only in said first time-frequency resource pool of said first time-frequency resource pool and said second time-frequency resource pool.
For the followingSecond node N4The second signaling is sent in step S40, and the first type signaling is sent in step S41 only in the first time-frequency resource pool of the first time-frequency resource pool and the second time-frequency resource pool.
In embodiment 6, the second signaling is used to indicate a first time-frequency resource pool and a second time-frequency resource pool; the first set of time-frequency resources includes the first time-frequency resource pool and the first set of time-frequency resources does not include the second time-frequency resource pool.
For one embodiment, the second signaling includes one or more fields in a controlresource in TS 38.331.
As one embodiment, the second signaling includes one or more fields in SearchSpace in TS 38.331.
As an embodiment, the second signaling includes one or more fields in PDCCH-Config in TS 38.331.
As an embodiment, the second signaling is RRC signaling.
As an embodiment, the first time-frequency resource pool is a CORESET (Control Resource Set ).
As an embodiment, the first time-frequency resource pool is a set of search spaces.
As an embodiment, the first time-frequency resource pool corresponds to a CORESET ID (Identity).
As an embodiment, the first time-frequency resource pool corresponds to a Search Space ID (Identity).
As an embodiment, the second time-frequency resource pool is a CORESET.
As an embodiment, the second time-frequency resource pool is a set of search spaces.
As an embodiment, the second time-frequency resource pool corresponds to a CORESET ID.
As an embodiment, the second time-frequency resource pool corresponds to a Search Space ID.
As an embodiment, the time domain resource occupied by the first time-frequency resource pool and the time domain resource occupied by the second time-frequency resource pool both belong to the first time unit.
As an embodiment, the frequency domain resources occupied by the first time-frequency resource pool and the frequency domain resources occupied by the second time-frequency resource pool are orthogonal in the frequency domain.
As an embodiment, the first time-frequency resource pool occupies a positive integer number of REs greater than 1.
As an embodiment, the second time-frequency resource pool occupies a positive integer number of REs greater than 1.
As an embodiment, the first time-frequency resource pool and the second time-frequency resource pool form a CORESET.
As an embodiment, the first time-frequency resource pool and the second time-frequency resource pool collectively correspond to one CORESET ID.
As an embodiment, the first time-frequency resource pool and the second time-frequency resource pool collectively correspond to one Search Space ID.
As an embodiment, any candidate time-frequency resource set of the K1 candidate time-frequency resource sets does not include the second time-frequency resource pool.
As an embodiment, the first type of signaling includes PDCCH.
As an embodiment, the first type of signaling comprises DCI.
As an embodiment, the monitoring comprises receiving.
As an embodiment, the monitoring comprises energy detection.
As an embodiment, the monitoring comprises coherent detection.
As one embodiment, the monitoring comprises blind detection.
Example 7
Embodiment 7 illustrates a schematic diagram of a target frequency domain resource, as shown in fig. 7. In fig. 7, the frequency bandwidth occupied by the target frequency domain resource is a first bandwidth, and the radio frequency bandwidth supported by the first node is equal to a second bandwidth; the rectangle filled with diagonal squares in the figure represents the band resources occupied by one RB.
As an embodiment, the first bandwidth occupies contiguous frequency band resources.
As one embodiment, the frequency bandwidth occupied by the target frequency domain resource refers to a frequency bandwidth between an RB with the smallest index occupied by the target frequency domain resource and an RB with the largest index occupied by the target frequency domain resource.
As one embodiment, RBs occupied by the target frequency domain resource are contiguous.
As one embodiment, RBs occupied by the target frequency domain resource are discrete.
Example 8
Embodiment 8 illustrates a schematic diagram of a first type of reference signal, as shown in fig. 8. In fig. 8, the diagonally filled rectangle represents the time-frequency resources occupied by the first type of reference signal, where the part marked by the thick solid frame is the first set of time-frequency resources in the present application.
As an embodiment, the first type of reference signal is transmitted in a second time window, the second time window comprising the first time window, the second time window comprising K0 time units, the K0 being a positive integer greater than the K1 in the present application.
As an embodiment, the first type of reference signals are configured in a periodic manner.
As an embodiment, the first type of reference signals are configured in a semi-persistent manner.
As an embodiment, the first type of reference signal is triggered by dynamic signaling.
As an embodiment, the first reference signal is a portion of the first type of reference signal located in the first set of time-frequency resources.
Example 9
Embodiment 9 illustrates a schematic diagram of K1 candidate time-frequency resource sets, as shown in fig. 9. In fig. 9, any candidate time-frequency resource set in the K1 candidate time-frequency resource sets occupies a positive integer number of consecutive RBs in the frequency domain, and occupies a positive integer number of consecutive OFDM symbols in the time domain; the rectangle filled by the oblique square in the figure represents one candidate time-frequency resource set in the K1 candidate time-frequency resource sets.
As an embodiment, the bandwidth of the frequency domain resource occupied by any candidate time-frequency resource set in the K1 candidate time-frequency resource sets is equal to the second bandwidth in the present application.
As an embodiment, the bandwidth of the frequency domain resource occupied by any candidate time-frequency resource set in the K1 candidate time-frequency resource sets is not greater than the second bandwidth in the present application.
As an embodiment, the frequency domain resources occupied by any two candidate time-frequency resource sets adjacent in the time domain in the K1 candidate time-frequency resource sets are orthogonal.
As an embodiment, the time domain resources commonly occupied by the K1 candidate time-frequency resource sets are contiguous.
As an embodiment, the frequency domain resources commonly occupied by the K1 candidate time-frequency resource sets are contiguous.
As an embodiment, the K1 candidate sets of time-frequency resources are discrete in frequency domain resources.
Example 10
Embodiment 10 illustrates a schematic diagram of a first time-frequency resource pool and a second time-frequency resource pool, as shown in fig. 10. In fig. 10, the first set of time-frequency resources includes the first time-frequency resource pool, and the first set of time-frequency resources does not include the second time-frequency resource pool; the first time-frequency resource pool and the second time-frequency resource pool both belong to a first time unit.
As an embodiment, the meaning that the first set of time-frequency resources includes the first time-frequency resource pool includes: all REs included in the first time-frequency resource pool belong to the first time-frequency resource set.
As an embodiment, the meaning that the first set of time-frequency resources does not include the second time-frequency resource pool includes: at least one RE in all RE included in the second time-frequency resource pool does not belong to the first time-frequency resource set.
As an embodiment, the meaning that the first set of time-frequency resources does not include the second time-frequency resource pool includes: any one of all REs included in the second time-frequency resource pool does not belong to the first time-frequency resource set.
Example 11
Embodiment 11 illustrates a schematic diagram of a first time window, as shown in fig. 11. In fig. 11, the first signaling is transmitted in a target time unit, the first signaling is used to determine the second time unit, and the first signal is transmitted in the second time unit.
As an embodiment, the first signaling is used to indicate the second time unit.
As an embodiment, the second time unit is a time slot.
As an embodiment, the time domain position of the second time unit is used to determine the starting instant of the first time window in the time domain.
As an embodiment, the time-domain position of the second time unit is used to determine the cut-off time of the first time window in the time domain.
Example 12
Embodiment 12 illustrates a block diagram of the structure in a first node, as shown in fig. 12. In fig. 12, a first node 1200 includes a first receiver 1201 and a first transceiver 1202.
A first receiver 1201 receiving first signaling, the first signaling being used to determine a target set of frequency domain resources;
a first transceiver 1202 that receives a first reference signal in a first set of time-frequency resources;
in embodiment 12, the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between a sender of the first signaling to the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
As an embodiment, the first node determines the frequency domain resources occupied by the wireless signal reception in the first time window by itself, or the location of the frequency domain resources occupied by the wireless signal reception in the first time window by the first node is fixed.
As an embodiment, the first signaling is used to determine a starting position of the first time window in the time domain.
As an embodiment, the first signaling is used to indicate configuration parameters of the first type of reference signals; the configuration parameters of the first type of reference signals include at least one of a time domain density of the first type of reference signals, a frequency domain density of the first type of reference signals in the first bandwidth, or a frequency domain density of the first type of reference signals in one resource block; the configuration parameters are used to determine a duration of the first time window in the time domain.
As an embodiment, the first time window comprises K1 time units, the first time unit being one of the K1 time units; the K1 time units respectively comprise K1 candidate time-frequency resource sets, and the first time-frequency resource set is one of the K1 candidate time-frequency resource sets; the first node receives wireless signals in the K1 candidate time-frequency resource sets only in the first time window; the frequency domain positions of the K1 candidate time-frequency resource sets are determined by the first node itself, or the frequency domain positions of the K1 candidate time-frequency resource sets are fixed.
As an embodiment, the first receiver 1201 receives second signaling, which is used to indicate a first time-frequency resource pool and a second time-frequency resource pool; the first transceiver 1202 monitors for a first type of signaling only in the first one of the first and second time-frequency resource pools; the first set of time-frequency resources includes the first time-frequency resource pool and the first set of time-frequency resources does not include the second time-frequency resource pool.
For one embodiment, the first transceiver 1202 transmits a first signal; the first signal includes a channel quality of the wireless link between a sender of the first signaling to the first node, the first signaling being used to indicate that transmission of the first signal is periodic or the first signaling being used to indicate that transmission of the first signal is semi-persistent.
As an embodiment, the frequency domain resources occupied by any two candidate time-frequency resource sets in the K1 candidate time-frequency resource sets are orthogonal, and the bandwidth of the frequency domain resources occupied by the K1 candidate time-frequency resource sets is not less than the first bandwidth.
As an embodiment, the first receiver 1201 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 in embodiment 4.
As one example, the first transceiver 1202 includes at least the first 6 of the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the multi-antenna transmit processor 457, the receive processor 456, the transmit processor 468, and the controller/processor 459 of example 4.
Example 13
Embodiment 13 illustrates a block diagram of the structure in a second node, as shown in fig. 13. In fig. 13, a second node 1300 includes a first transmitter 1301 and a second transceiver 1302.
A first transmitter 1301 that transmits first signaling, which is used to determine a target set of frequency domain resources;
a second transceiver 1302 that transmits a first reference signal in a first set of time-frequency resources;
in embodiment 13, the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between the second node and a first node, a receiver of the first reference signals comprising the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
As an embodiment, the first node determines the frequency domain resources occupied by the wireless signal reception in the first time window by itself, or the location of the frequency domain resources occupied by the wireless signal reception in the first time window by the first node is fixed.
As an embodiment, the first signaling is used to determine a starting position of the first time window in the time domain.
As an embodiment, the first signaling is used to indicate configuration parameters of the first type of reference signals; the configuration parameters of the first type of reference signals include at least one of a time domain density of the first type of reference signals, a frequency domain density of the first type of reference signals in the first bandwidth, or a frequency domain density of the first type of reference signals in one resource block; the configuration parameters are used to determine a duration of the first time window in the time domain.
As an embodiment, the first time window comprises K1 time units, the first time unit being one of the K1 time units; the K1 time units respectively comprise K1 candidate time-frequency resource sets, and the first time-frequency resource set is one of the K1 candidate time-frequency resource sets; the first node receives wireless signals in the K1 candidate time-frequency resource sets only in the first time window; the frequency domain positions of the K1 candidate time-frequency resource sets are determined by the first node itself, or the frequency domain positions of the K1 candidate time-frequency resource sets are fixed.
As an embodiment, the first transmitter 1301 sends second signaling, which is used to indicate the first time-frequency resource pool and the second time-frequency resource pool; the second transceiver 1302 transmits a first type of signaling only in the first one of the first and second time-frequency resource pools; the first set of time-frequency resources includes the first time-frequency resource pool and the first set of time-frequency resources does not include the second time-frequency resource pool.
For one embodiment, the second transceiver 1302 receives a first signal; the first signal includes a channel quality of the wireless link between the second node to the first node, the first signaling being used to indicate that transmission of the first signal is periodic or the first signaling being used to indicate that transmission of the first signal is semi-continuous.
As an embodiment, the frequency domain resources occupied by any two candidate time-frequency resource sets in the K1 candidate time-frequency resource sets are orthogonal, and the bandwidth of the frequency domain resources occupied by the K1 candidate time-frequency resource sets is not less than the first bandwidth.
As one example, the first transmitter 1301 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of example 4.
As one example, the second transceiver 1302 includes at least the first 6 of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the transmit processor 416, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of example 4.
Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the application is not limited to any specific combination of software and hardware. The first node and the second node in the application include, but are not limited to, mobile phones, tablet computers, notebooks, network cards, low power consumption devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, vehicles, RSUs, aircrafts, airplanes, unmanned aerial vehicles, remote control aircrafts and other wireless communication devices. The base station in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission receiving node TRP, a GNSS, a relay satellite, a satellite base station, an air base station, an RSU, and other wireless communication devices.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims (32)

1. A first node for use in wireless communications, comprising:
a first receiver that receives first signaling, the first signaling being used to determine a target set of frequency domain resources;
a first transceiver that receives a first reference signal in a first set of time-frequency resources;
wherein the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between a sender of the first signaling to the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
2. The first node of claim 1, wherein the first node determines the frequency domain resources occupied for wireless signal reception by itself in the first time window or wherein the location of the frequency domain resources occupied for wireless signal reception by the first node in the first time window is fixed.
3. The first node according to claim 1 or 2, characterized in that the first signaling is used to determine the starting position of the first time window in the time domain.
4. A first node according to any of claims 1-3, characterized in that the first signaling is used to indicate configuration parameters of the first type of reference signals; the configuration parameters of the first type of reference signals include at least one of a time domain density of the first type of reference signals, a frequency domain density of the first type of reference signals in the first bandwidth, or a frequency domain density of the first type of reference signals in one resource block; the configuration parameters are used to determine a duration of the first time window in the time domain.
5. The first node of any of claims 1 to 4, wherein the first time window comprises K1 time units, the first time unit being one of the K1 time units; the K1 time units respectively comprise K1 candidate time-frequency resource sets, and the first time-frequency resource set is one of the K1 candidate time-frequency resource sets; the first node receives wireless signals in the K1 candidate time-frequency resource sets only in the first time window; the frequency domain positions of the K1 candidate time-frequency resource sets are determined by the first node itself, or the frequency domain positions of the K1 candidate time-frequency resource sets are fixed.
6. The first node according to any of claims 1-5, wherein the first receiver receives second signaling, the second signaling being used to indicate a first time-frequency resource pool and a second time-frequency resource pool; the first transceiver monitors a first type of signaling only in the first one of the first and second time-frequency resource pools; the first set of time-frequency resources includes the first time-frequency resource pool and the first set of time-frequency resources does not include the second time-frequency resource pool.
7. The first node of any of claims 1-6, wherein the first transceiver transmits a first signal; the first signal includes a channel quality of the wireless link between a sender of the first signaling to the first node, the first signaling being used to indicate that transmission of the first signal is periodic or the first signaling being used to indicate that transmission of the first signal is semi-persistent.
8. The first node of claim 5, wherein frequency domain resources occupied by any two candidate time-frequency resource sets in the K1 candidate time-frequency resource sets are orthogonal, and wherein a bandwidth of frequency domain resources commonly occupied by the K1 candidate time-frequency resource sets is not less than the first bandwidth.
9. A second node for use in wireless communications, comprising:
a first transmitter that transmits first signaling, the first signaling being used to determine a target set of frequency domain resources;
a second transceiver transmitting a first reference signal in a first set of time-frequency resources;
wherein the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between the second node and a first node, a receiver of the first reference signals comprising the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
10. The second node of claim 9, wherein the second node comprises a second node comprising a second node,
the first node determines frequency domain resources occupied by receiving the wireless signal in the first time window by itself, or the position of the frequency domain resources occupied by receiving the wireless signal in the first time window by the first node is fixed.
11. The second node according to claim 9 or 10, characterized in that,
the first signaling is used to determine a starting position of the first time window in the time domain.
12. The second node according to any of the claims 9 to 11, characterized in that,
the first signaling is used to indicate configuration parameters of the first type of reference signals; the configuration parameters of the first type of reference signals include at least one of a time domain density of the first type of reference signals, a frequency domain density of the first type of reference signals in the first bandwidth, or a frequency domain density of the first type of reference signals in one resource block; the configuration parameters are used to determine a duration of the first time window in the time domain.
13. The second node according to any of the claims 9 to 12, characterized in that,
The first time window comprises K1 time units, the first time unit being one of the K1 time units; the K1 time units respectively comprise K1 candidate time-frequency resource sets, and the first time-frequency resource set is one of the K1 candidate time-frequency resource sets; the first node receives wireless signals in the K1 candidate time-frequency resource sets only in the first time window; the frequency domain positions of the K1 candidate time-frequency resource sets are determined by the first node itself, or the frequency domain positions of the K1 candidate time-frequency resource sets are fixed.
14. The second node according to any of the claims 9 to 13, characterized in that,
the first transmitter transmits second signaling, the second signaling being used to indicate a first time-frequency resource pool and a second time-frequency resource pool; the second transceiver transmits a first type of signaling only in the first time-frequency resource pool of the first time-frequency resource pool and the second time-frequency resource pool; the first set of time-frequency resources includes the first time-frequency resource pool and the first set of time-frequency resources does not include the second time-frequency resource pool.
15. The second node according to any of the claims 9 to 14, characterized in that,
the second transceiver receives a first signal; the first signal includes a channel quality of the wireless link between the second node to the first node, the first signaling being used to indicate that transmission of the first signal is periodic or the first signaling being used to indicate that transmission of the first signal is semi-continuous.
16. The second node of claim 13, wherein the second node comprises a second node comprising a second node,
the frequency domain resources occupied by any two candidate time-frequency resource sets in the K1 candidate time-frequency resource sets are orthogonal, and the bandwidth of the frequency domain resources occupied by the K1 candidate time-frequency resource sets is not smaller than the first bandwidth.
17. A method in a first node for use in wireless communications, comprising:
receiving first signaling, the first signaling being used to determine a target set of frequency domain resources;
receiving a first reference signal in a first set of time-frequency resources;
wherein the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between a sender of the first signaling to the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
18. The method of claim 17, wherein the first node determines the frequency domain resources occupied for receiving the wireless signal by itself in the first time window or wherein the location of the frequency domain resources occupied for receiving the wireless signal by the first node in the first time window is fixed.
19. The method in a first node according to claim 17 or 18, characterized in that the first signaling is used to determine the starting position of the first time window in the time domain.
20. The method in a first node according to any of claims 17 to 19, characterized in that the first signaling is used to indicate configuration parameters of the first type of reference signals; the configuration parameters of the first type of reference signals include at least one of a time domain density of the first type of reference signals, a frequency domain density of the first type of reference signals in the first bandwidth, or a frequency domain density of the first type of reference signals in one resource block; the configuration parameters are used to determine a duration of the first time window in the time domain.
21. The method in a first node according to any of claims 17 to 20, wherein the first time window comprises K1 time units, the first time unit being one of the K1 time units; the K1 time units respectively comprise K1 candidate time-frequency resource sets, and the first time-frequency resource set is one of the K1 candidate time-frequency resource sets; the first node receives wireless signals in the K1 candidate time-frequency resource sets only in the first time window; the frequency domain positions of the K1 candidate time-frequency resource sets are determined by the first node itself, or the frequency domain positions of the K1 candidate time-frequency resource sets are fixed.
22. The method in a first node according to any of claims 17 to 21, comprising:
receiving second signaling, wherein the second signaling is used for indicating a first time-frequency resource pool and a second time-frequency resource pool;
monitoring a first type of signaling only in the first time-frequency resource pool of the first time-frequency resource pool and the second time-frequency resource pool;
wherein the first set of time-frequency resources includes the first time-frequency resource pool and the first set of time-frequency resources does not include the second time-frequency resource pool.
23. The method in a first node according to any of the claims 17 to 22, comprising:
transmitting a first signal;
wherein the first signal comprises a channel quality of the wireless link between a sender of the first signaling to the first node, the first signaling being used to indicate that the transmission of the first signal is periodic or the first signaling being used to indicate that the transmission of the first signal is semi-persistent.
24. The method of claim 21, wherein the frequency domain resources occupied by any two of the K1 candidate sets of time-frequency resources are orthogonal, and wherein the bandwidth of the frequency domain resources commonly occupied by the K1 candidate sets of time-frequency resources is not less than the first bandwidth.
25. A method in a second node for use in wireless communications, comprising:
transmitting first signaling, the first signaling being used to determine a target set of frequency domain resources;
transmitting a first reference signal in a first set of time-frequency resources;
wherein the frequency domain resources occupied by the first time-frequency resource set belong to the target frequency domain resource set; the target set of frequency domain resources comprises frequency domain resources occupied by a first type of reference signals, the first type of reference signals comprising the first reference signals, the first reference signals being used to determine channel quality of a wireless link between the second node and a first node, a receiver of the first reference signals comprising the first node; the bandwidth occupied by the target frequency domain resource set is equal to a first bandwidth, the radio frequency bandwidth supported by the first node is equal to a second bandwidth, and the first bandwidth is larger than the second bandwidth; the time domain resources occupied by the first time-frequency resource set belong to a first time unit, the first time unit belongs to a first time window, and the time length of the first time window is longer than that of the first time unit; the ratio of the first bandwidth to the second bandwidth is used to determine the duration of the first time window in the time domain.
26. The method of claim 25, wherein the first node determines the frequency domain resources occupied for receiving the wireless signal by itself in the first time window or wherein the location of the frequency domain resources occupied for receiving the wireless signal by the first node in the first time window is fixed.
27. A method in a second node according to claim 25 or 26, characterized in that the first signalling is used to determine the starting position of the first time window in the time domain.
28. The method in a second node according to any of claims 25-27, characterized in that the first signaling is used to indicate configuration parameters of the first type of reference signals; the configuration parameters of the first type of reference signals include at least one of a time domain density of the first type of reference signals, a frequency domain density of the first type of reference signals in the first bandwidth, or a frequency domain density of the first type of reference signals in one resource block; the configuration parameters are used to determine a duration of the first time window in the time domain.
29. The method in a second node according to any of claims 25-28, wherein the first time window comprises K1 time units, the first time unit being one of the K1 time units; the K1 time units respectively comprise K1 candidate time-frequency resource sets, and the first time-frequency resource set is one of the K1 candidate time-frequency resource sets; the first node receives wireless signals in the K1 candidate time-frequency resource sets only in the first time window; the frequency domain positions of the K1 candidate time-frequency resource sets are determined by the first node itself, or the frequency domain positions of the K1 candidate time-frequency resource sets are fixed.
30. A method in a second node according to any of claims 25-29, comprising:
transmitting second signaling, wherein the second signaling is used for indicating the first time-frequency resource pool and the second time-frequency resource pool;
transmitting a first type of signaling only in the first time-frequency resource pool of the first time-frequency resource pool and the second time-frequency resource pool;
wherein the first set of time-frequency resources includes the first time-frequency resource pool and the first set of time-frequency resources does not include the second time-frequency resource pool.
31. A method in a second node according to any of claims 25-30, comprising:
receiving a first signal;
wherein the first signal comprises a channel quality of the wireless link between the second node to the first node, the first signaling being used to indicate that transmission of the first signal is periodic or the first signaling being used to indicate that transmission of the first signal is semi-persistent.
32. The method of claim 29, wherein the frequency domain resources occupied by any two of the K1 candidate sets of time-frequency resources are orthogonal, and wherein the bandwidth of the frequency domain resources commonly occupied by the K1 candidate sets of time-frequency resources is not less than the first bandwidth.
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