CN110557820B - Signaling sending and receiving method and device, storage medium, base station and terminal - Google Patents

Signaling sending and receiving method and device, storage medium, base station and terminal Download PDF

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Publication number
CN110557820B
CN110557820B CN201910913221.0A CN201910913221A CN110557820B CN 110557820 B CN110557820 B CN 110557820B CN 201910913221 A CN201910913221 A CN 201910913221A CN 110557820 B CN110557820 B CN 110557820B
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pur
search space
indication information
offset
wake
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CN110557820A (en
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雷珍珠
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Spreadtrum Semiconductor Nanjing Co Ltd
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Spreadtrum Semiconductor Nanjing Co Ltd
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Priority to PCT/CN2020/109122 priority patent/WO2021057319A1/en
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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
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

A signaling sending method, a signaling receiving method, a device, a storage medium, a base station and a terminal are provided, wherein the signaling sending method comprises the following steps: and issuing indication information, wherein the indication information is used for indicating whether the terminal monitors the PDCCH in the PUR search space window. The technical scheme provided by the invention can reduce the energy consumption expense of the UE.

Description

Signaling sending and receiving method and device, storage medium, base station and terminal
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a signaling sending method, a signaling receiving method, a signaling sending device, a signaling receiving device, a storage medium, a base station, and a terminal.
Background
In a New Radio (NR) system of The Fifth-Generation mobile communications (5G), when a User Equipment (User Equipment, UE) transmits uplink data or downlink data in a Radio Resource Control (RRC) idle state (idle state), The User Equipment needs to be switched from a dormant state to a connected state (connected state).
At present, there is a way that a UE can directly send a small amount of Uplink data in a dormant state, that is, a network configures a dedicated and periodic Uplink pre-configured resource (PUR) and a corresponding Downlink search space window for the UE, so that the UE can send the Uplink data through the PUR and can monitor a Physical Downlink Control Channel (PDCCH) for receiving the Downlink data based on the Downlink search space window.
However, in the process of transmitting and receiving data by using the PUR and the corresponding downlink search space window, the UE needs to periodically monitor the PDCCH for scheduling downlink data, which may cause energy consumption overhead of the UE.
Disclosure of Invention
The technical problem solved by the invention is how to reduce the energy consumption overhead of the UE which adopts the PUR related resources to receive the downlink data.
In order to solve the foregoing technical problem, an embodiment of the present invention provides a signaling sending method, including: and issuing indication information, wherein the indication information is used for indicating whether the terminal monitors the PDCCH in the PUR search space window.
Optionally, before sending the indication information, the method further includes: and receiving uplink data, wherein the uplink data is transmitted by adopting PUR.
Optionally, the indication information is sent down by the ACK DCI/NACK associated with the uplink data.
Optionally, the uplink data includes downlink beam information, and the downlink beam information includes a downlink beam that the terminal desires to use.
Optionally, the indication information is carried by the wake-up signal and sent down.
Optionally, the issuing indication information includes: and if the PUR does not receive the uplink data, sending the indication information by adopting a wake-up signal.
Optionally, the wake-up signal is located between the PUR and a PUR search space window, and the PUR search space window is associated with the PUR.
Optionally, before sending the indication information, the method further includes: issuing a first offset or a second offset; wherein the first offset is an offset between the wake-up signal and the PUR, the first offset is a fixed value, the second offset is an offset between the wake-up signal and a PUR search space window, and the second offset is a fixed value.
Optionally, the number of the PUR search space windows is multiple, and the indication information is used to indicate whether the terminal monitors the PDCCH in each PUR search space window.
Optionally, the number of the PUR search space windows is multiple, and when the indication information indicates that the terminal suspends monitoring the PDCCH in multiple PUR search space windows, the indication information is further configured to indicate that the terminal suspends receiving the wake-up signal in multiple PUR search space windows.
Optionally, the indication information is further configured to indicate that the terminal suspends sending downlink beam information during the plurality of PUR search space windows, where the downlink beam information includes a downlink beam that the terminal desires to use.
Optionally, the total number of the plurality of PUR search space windows is N, N is selected from a preset value set, and N is a positive integer.
In order to solve the above technical problem, an embodiment of the present invention further provides a signaling receiving method, including: and receiving indication information, wherein the indication information is used for indicating whether the terminal monitors the PDCCH in the PUR search space window.
Optionally, before receiving the indication information, the method further includes: and sending uplink data, wherein the uplink data is transmitted by adopting PUR.
Optionally, the indication information is sent down by the ACK DCI/NACK associated with the uplink data.
Optionally, the uplink data includes downlink beam information, and the downlink beam information includes a downlink beam that the terminal desires to use.
Optionally, the indication information is carried by the wake-up signal and sent down.
Optionally, the receiving the indication information includes: and if the uplink data is not sent by the PUR, detecting a wake-up signal to receive the indication information, wherein the wake-up signal is positioned between the PUR and a PUR search space window, and the PUR search space window is associated with the PUR.
Optionally, the wake-up signal is located between the PUR and a PUR search space window, and the PUR search space window is associated with the PUR.
Optionally, before receiving the indication information, the method further includes: receiving a first offset or a second offset; wherein the first offset is an offset between the wake-up signal and the PUR, the first offset is a fixed value, the second offset is an offset between the wake-up signal and a PUR search space window, and the second offset is a fixed value.
Optionally, the number of the PUR search space windows is multiple, and the indication information is used to indicate whether the terminal monitors the PDCCH in each PUR search space window.
Optionally, the number of the PUR search space windows is multiple, and when the indication information indicates that the terminal suspends monitoring the PDCCH in multiple PUR search space windows, the indication information is further configured to indicate that the terminal suspends receiving the wake-up signal during multiple PUR search space windows.
Optionally, the indication information is further configured to indicate that the terminal suspends sending downlink beam information during the plurality of PUR search space windows, where the downlink beam information includes a downlink beam that the terminal desires to use.
Optionally, the total number of the plurality of PUR search space windows is N, N is selected from a preset value set, and N is a positive integer.
In order to solve the foregoing technical problem, an embodiment of the present invention further provides a signaling sending apparatus, including: and the issuing module is used for issuing indication information, and the indication information is used for indicating whether the terminal monitors the PDCCH in the PUR search space window.
In order to solve the foregoing technical problem, an embodiment of the present invention further provides a signaling receiving apparatus, including: and the receiving module is used for receiving indication information, wherein the indication information is used for indicating whether the terminal monitors the PDCCH in the PUR search space window.
To solve the above technical problem, an embodiment of the present invention further provides a storage medium having stored thereon computer instructions, where the computer instructions execute the steps of the above method when executed.
In order to solve the above technical problem, an embodiment of the present invention further provides a base station, including a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes the computer instructions to perform the steps of the above method.
In order to solve the foregoing technical problem, an embodiment of the present invention further provides a terminal, including a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes the computer instructions to perform the steps of the foregoing method.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a signaling sending method, which comprises the following steps: and issuing indication information, wherein the indication information is used for indicating whether the terminal monitors the PDCCH in a preconfigured uplink resource search space window. The embodiment of the invention enables the UE in an idle or inactive state to know whether the network (for example, a base station) transmits the PDCCH signaling in the PUR search space window or not by sending the indication information, and the UE only needs to monitor the PDCCH when knowing that the network transmits the PDCCH signaling, thereby avoiding the UE from periodically monitoring the PDCCH for scheduling the downlink data and saving the energy consumption of the UE.
Further, the indication information is sent down by the ACK DCI/NACK associated with the uplink data. After the UE uploads the uplink data, the indication information can be issued on the associated ACK DCI/NACK, so that the UE can know whether the PDCCH needs to be monitored in a subsequent PUR search space window, and the power consumption of the terminal is further saved.
Further, the issuing indication information includes: and if the PUR does not receive the uplink data, sending the indication information by adopting a wake-up signal. According to the embodiment of the invention, when the UE does not upload uplink data, the indication information can be issued based on the wake-up signal, so that the UE can monitor the PDCCH only when the PDCCH is sent by the PUR search space window, and the power consumption of the terminal is further saved.
Further, the number of the PUR search space windows is multiple, and when the indication information indicates that the terminal suspends monitoring the PDCCH in multiple PUR search space windows, the indication information is further used for indicating that the terminal suspends receiving the wake-up signal in multiple PUR search space windows. The embodiment of the invention can indicate whether the UE receives the PDCCH or not within a period of time (for example, a plurality of PUR search space windows) through the indication information, and if the indication information indicates that no downlink data is sent in the plurality of PUR search space windows, the UE does not need to try to receive the PDCCH during the plurality of PUR search space windows, thereby further being beneficial to saving the power consumption of the terminal.
Drawings
Fig. 1 is a flowchart illustrating a signaling sending method according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a signaling receiving method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a data time domain distribution according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a further data time domain distribution according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a signaling device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a signaling receiving apparatus according to an embodiment of the present invention.
Detailed Description
As mentioned in the background art, when the data is transmitted and received by using the PUR in the prior art, the UE energy consumption overhead is large.
In NR, a UE may use Discontinuous Reception (DRX) in an RRC idle state and an RRC inactive state (inactive) in order to reduce power consumption. The UE listens to one Paging Occasion (PO) per DRX cycle. Since NR introduces the operation of beam management, the length of a single PO is one beam scanning period, and the same paging message is repeatedly transmitted in all beams of the scanning pattern. The selection of the beam for receiving the paging message depends on the UE implementation. A paging frame is a radio frame and may contain one or more POs, even a paging frame as a starting point of a PO. The determination of the paging frame is similar to the calculation method in Long Term Evolution (Long Term Evolution, LTE for short).
In the current NR system, when a UE in an idle (idle) or inactive (inactive) state (i.e., idle/inactive state) wants to send uplink/downlink data, it needs to enter a connected state through a random access procedure before sending the uplink/downlink data, and "/" indicates "or. This idle or inactive data transmission mechanism increases RRC signaling overhead and UE energy consumption, and also increases data transmission delay.
In order to reduce the RRC signaling overhead and UE energy consumption caused by the UE sending uplink Data in an idle state, an Early Data Transmission mechanism (EDT) is introduced in a narrowband Internet of things (Narrow Band Internet of things, NB-IOT for short) system. The essence of the EDT transmission mechanism is that, in the process of initiating random access, the UE uses a third Message (Message3, Msg3 for short) to carry uplink data to achieve the purpose of uplink data transmission, thereby preventing the UE from entering a connected state. Aiming at uplink data transmission in an idle state, the method effectively reduces the overhead of RRC signaling and the energy consumption of the UE, and simultaneously reduces the transmission delay of the UE. However, due to the limited number of bits Msg3 can carry, this approach can only upload a few small upstream packets.
In order to further reduce the RRC signaling overhead caused by the UE sending Uplink data in an idle state and increase the rate of Uplink data transmission, NB-IOT introduces a periodic Uplink pre-configured resource (PUR for short), and the UE can directly send Uplink data on the PUR, thereby greatly reducing the RRC signaling overhead and transmission delay caused by Uplink transmission.
The UE may send uplink data through the PUR, and receive retransmission scheduling information or ACKnowledgement information, such as ACKnowledgement/negative ACKnowledgement (ACK/NACK), in a corresponding uplink pre-configured resource search window (PUR search window).
In order to enable the UE to directly receive downlink data in an idle or inactive state, the network may issue downlink scheduling information through a downlink search space window corresponding to the PUR, and the UE may monitor the PDCCH through the downlink search space window to receive the downlink data. In this downlink data transmission manner, the UE needs to periodically monitor the PDCCH for scheduling downlink data, which may cause energy consumption overhead of the UE.
In order to solve the foregoing technical problem, an embodiment of the present invention provides a signaling sending method, including: and issuing indication information, wherein the indication information is used for indicating whether the terminal monitors the PDCCH in a preconfigured uplink resource search space window. The embodiment of the invention enables the UE in an idle state or an inactive state to know whether the network (for example, a base station) transmits the PDCCH signaling in the PUR search space window or not by sending the indication information, and the UE only needs to monitor the PDCCH when knowing that the network transmits the PDCCH signaling, thereby avoiding the UE from periodically monitoring the PDCCH for scheduling the downlink data and saving the energy consumption of the UE.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a flowchart illustrating a signaling sending method according to an embodiment of the present invention. The signaling method may be applied to the network side, for example, performed by a base station.
Specifically, the signaling transmission method may include only step S102, or may include step S101 and step S102:
step S101, receiving uplink data before sending indication information, wherein the uplink data is transmitted by PUR.
Step S102, issuing indication information, wherein the indication information is used for indicating whether the terminal monitors the PDCCH in the PUR search space window.
More specifically, if the UE does not transmit uplink data in the PUR, the base station may issue indication information in step S102. The indication information is used for indicating whether the terminal monitors the PDCCH in the PUR search space window.
In a non-limiting example, the indication information may be carried and transmitted by a Wake Up Signal (WUS). In a specific implementation, the wake-up signal may be located between a PUR and a PUR search space window, where the PUR search space window is associated with and located after the PUR. And the PURs correspond to the PUR search space windows one by one.
If the UE transmits uplink data in the PUR, the base station may perform step S101, that is, receive the uplink data in the PUR. Thereafter, the indication information may be issued in step S102 to inform the UE whether to monitor the PDCCH in the PUR search space window.
In a non-limiting example, the uplink data may include downlink beam information, and the downlink beam information may include a downlink beam that the terminal desires to use. In a specific implementation, the downlink beam information may be implicitly indicated by a dedicated resource, or may be explicitly indicated. For example, the UE may transmit the uplink data by using an uplink resource corresponding to the downlink beam expected to be used, and after receiving the uplink data on the uplink resource, the base station may obtain the downlink beam expected to be used by the terminal. For another example, the UE may use a downlink beam whose bits indicate the desired network usage.
In a non-limiting example, the indication Information is carried and sent in ACK Downlink Control Information (DCI)/NACK associated with the uplink data. And the ACK DCI/NACK is issued by adopting the resources in the PUR search space window related to the PUR. The PUR search space window is located after and immediately adjacent to the PUR.
For a base station, if uplink data is not received at a PUR, the base station may send the indication information between the PUR and a PUR search space window by using a wake-up signal, where the PUR search space window is associated with the PUR.
It should be noted that, if the indication information is issued by using the wake-up signal, the base station needs to issue the first offset or the second offset before issuing the indication information. The first offset refers to an offset between the wake-up signal and the PUR, and the first offset may be a constant and is a fixed value. The second offset is an offset between the wake-up signal and a PUR search space window, and the second offset may be a constant and a fixed value.
In a specific implementation, the indication information may indicate whether the UE monitors the PDCCH in each of the following plurality of PUR search space windows simultaneously. For example, the indication information indicates whether N PUR search space windows monitor the PDCCH with N bits, where N is a positive integer. N may be selected from a preset set of values. The individual elements of the preset set of values may be predefined in the protocol. Suppose bit 1 indicates monitoring the PDCCH, bit 0 indicates not monitoring the PDCCH, and N is 4. Under this condition, "1000" indicates that the base station may issue the PDCCH in the PUR search space window associated with the PUR, and the UE needs to monitor the PDCCH in the PUR search space window associated with the PUR, that is, the PUR search space window corresponding to bit "1" may also be understood as the first PUR search space window after the PUR); in the subsequent 3 consecutive PUR search space windows, the base station does not issue the PDCCH, and accordingly, the UE does not need to monitor the PDCCH in the subsequent 3 consecutive PUR search space windows.
In a specific implementation, the number of the PUR search space windows is multiple, and when the indication information indicates that the terminal suspends monitoring the PDCCH in the multiple PUR search space windows, the indication information may be further configured to indicate that the terminal suspends receiving the wake-up signal during the multiple PUR search space windows. Specifically, if the base station does not issue downlink data such as PDCCH in the PUR search space window within a period of time, the base station may indicate, in the issued indication information, that the terminal suspends monitoring the PDCCH in the plurality of PUR search space windows, and notify the terminal to suspend receiving the wake-up signal during the plurality of PUR search space windows.
It should be noted that the duration of the plurality of PUR search space windows refers to a time period in which the plurality of PUR search space windows are included, and the UE does not need to receive the wake-up signal in the time period. In a first embodiment, the wake-up signal may be located between a PUR and its corresponding PUR search space window.
In a specific implementation, the base station may inform the UE of the number of PUR search space windows, for example, N PUR search space windows, where N is a positive integer, and N may be selected from a preset value set. The individual elements of the preset set of values may be predefined in the protocol. After receiving the indication information, the UE may stop monitoring the PDCCH during the N PUR search space windows without attempting to receive a wake-up signal during the N PUR search space windows.
Further, the indication information may indicate, in addition to indicating that the terminal suspends monitoring the PDCCH and receiving the wake-up signal during the plurality of PUR search space windows, that the terminal suspends sending downlink beam information during the plurality of PUR search space windows, where the downlink beam information includes a downlink beam that the terminal desires to use.
Fig. 2 is a flowchart illustrating a signaling receiving method according to an embodiment of the present invention. The signaling receiving method may be performed by a terminal side, for example, by a UE.
Specifically, the signaling receiving method may include step S202:
step S202, receiving indication information, wherein the indication information is used for indicating whether the terminal monitors the PDCCH in the PUR search space window.
More specifically, the UE may receive indication information from the network side base station, where the indication information is used to indicate whether the terminal monitors the PDCCH in the PUR search space window.
In a non-limiting example, before receiving the indication information, the signaling receiving method may further include step S201: and sending uplink data, wherein the uplink data is transmitted by adopting PUR.
Specifically, the UE is in an idle/inactive state. The UE has uplink data to be transmitted, and the UE can send the uplink data to be transmitted to a base station in the PUR. Then, the base station may issue the indication information to notify the UE whether to monitor the PDCCH in a PUR search space window associated with the PUR.
In a specific implementation, the indication information may be sent down by the ACK DCI/NACK associated with the uplink data.
In a specific implementation, the uplink data may include downlink beam information, and the downlink beam information includes a downlink beam that the terminal desires to use.
In yet another non-limiting example, the UE is in an idle/inactive state. The base station can issue the indication information to the UE through a wake-up signal so as to inform the UE whether to monitor the PDCCH in a PUR search space window associated with the PUR.
In one embodiment, the wake-up signal is located between a PUR and a PUR search space window, the PUR search space window being associated with the PUR.
In another non-limiting example, the UE is in an idle/inactive state. The UE has no uplink data to be transmitted. The base station does not receive uplink data in the PUR, and then the base station can issue the indication information based on the wake-up signal to inform the UE whether to monitor the PDCCH in the PUR search space window associated with the PUR.
In one embodiment, the wake-up signal may be located between the PUR and a PUR search space window associated with the PUR.
It should be noted that, to receive the wake-up signal, the base station may send the first offset or the second offset to the UE before issuing the indication information. Wherein the first offset is an offset between the wake-up signal and the PUR, the first offset is a fixed value, the second offset is an offset between the wake-up signal and a PUR search space window, and the second offset is a fixed value. Thereafter, the UE may receive the first offset or the second offset. And receiving the wake-up signal according to the first offset or the second offset.
In a specific implementation, the number of the PUR search space windows may be multiple, and for each PUR search space window, the indication information may indicate whether the terminal monitors the PDCCH in each of the PUR search space windows.
In a specific implementation, the number of the PUR search space windows is multiple, and when the indication information indicates that the terminal suspends monitoring the PDCCH in the multiple PUR search space windows, the indication information is further used for indicating that the terminal suspends receiving the wake-up signal in the multiple PUR search space windows.
Further, the indication information may also indicate that the terminal suspends sending downlink beam information in the plurality of PUR search space windows, where the downlink beam information includes a downlink beam that the terminal desires to use.
In a specific implementation, the total number of the plurality of PUR search space windows is N, N is selected from a preset value set, and N is a positive integer. The elements in the preset value set are predefined, and may be determined by negotiation between the UE and the base station, or may be set by a protocol.
Those skilled in the art understand that the steps S201 to S202 can be regarded as execution steps corresponding to the steps S101 to S102 described in the above embodiment shown in fig. 1, and the two steps are complementary in specific implementation principle and logic. Therefore, the explanation of the terms and principles involved in the signaling receiving method provided in this embodiment may refer to the description related to the embodiment shown in fig. 1, and will not be repeated here.
The details are explained below with specific examples.
Example 1: the network instructs the UE to monitor the PDCCH scheduled by the downlink data through ACK DCI/NACK or WUS corresponding to the uplink data
Fig. 3 is a flow chart illustrating an embodiment of the present invention. The network can issue scheduling information of downlink data in the uplink preconfigured resource search space window, so that the UE needs to periodically monitor the PDCCH for data scheduling in the uplink preconfigured resource search space window. However, in many cases, the network does not have downlink data to send, and there is not downlink scheduling information in each uplink preconfigured resource search space window, and the behavior of periodically monitoring the PDCCH by the UE may cause waste of power.
Referring to fig. 3, in order to save energy consumption of the UE, the embodiment of the present invention indicates whether the UE needs to monitor a downlink scheduling PDCCH (indicated by a right striped grid) within an uplink pre-configured resource search space window (indicated by a blank dashed box in the figure) by introducing indication information (not shown in the figure). The indication information may be carried by ACK DCI/NACK (indicated by cross stripes in the figure) corresponding to uplink data (i.e., uplink data sent in the uplink preconfigured resource, indicated by left-diagonal stripes in the figure), and the UE determines whether to monitor a downlink scheduling PDCCH in the uplink preconfigured resource search space window by receiving the ACK DCI/NACK.
However, the UE does not perform uplink data transmission (indicated by a blank solid line grid in the figure) on each uplink pre-configured resource, and there is no binding relationship between downlink data reception and uplink data transmission in time. When the UE does not send uplink data on the uplink preconfigured resource, the network may indicate whether the UE needs to monitor the downlink scheduling PDCCH in the search space window of the uplink preconfigured resource by issuing a wake-up signal (indicated by a horizontal bar in the figure).
In other words, the behavior of the UE is: and when the uplink data is sent, determining whether to monitor a downlink scheduling PDCCH in an uplink pre-configured resource search space window by receiving ACK DCI/NACK without detecting an awakening signal. Otherwise, if the uplink data is not sent, the UE needs to determine whether to monitor the downlink scheduling PDCCH in the uplink preconfigured resource search space window by detecting the wake-up signal.
In addition, the position of the wake-up signal is located between the PUR and a PUR search space window (PUR search space window), and the network may configure an offset (offset) between the WUS and the PUR search space window or an offset between the WUS and the PUR to the UE when configuring the PUR, and the UE determines the detection position of the wake-up signal through the offset.
Example 2: and the network indicates whether the UE needs to receive the indication information and the wake-up signal and send downlink beam (beam) information through ACK DCI/NACK corresponding to the uplink data.
In general, when a network transmits downlink scheduling information or downlink data, it is necessary to determine a downlink beam direction. Therefore, when the UE does not send uplink data for a period of time, the UE needs to report some downlink beam directions for downlink reception. In many cases, the network may not have downlink data to transmit for a long time, and unnecessary power consumption may be caused if the UE further performs wake-up signal detection and downlink beam information reporting during this time. Therefore, in this embodiment, the ACK DCI/NACK corresponding to the uplink data carries indication information, and the indication information may indicate whether the UE needs to detect the wake-up signal and send downlink beam information, so as to achieve the purpose of saving energy.
FIG. 4 is a flow chart illustrating another embodiment of the present invention. Referring to fig. 4, in an initial stage, a UE sends a PUR with data to a network, and the network may issue scheduling information such as data acknowledgement and/or PDCCH in a PUR search space window. Then, the UE has no data to report, and the UE can receive the wake-up signal between the PUR and the PUR search space window.
Further, the UE may report downlink beam information based on the PUR. The network side may issue an ACK DCI/NACK in a PUR search space window associated with the PUR. The ACK DCI/NACK may carry indication information indicating that no wake-up signal is transmitted during the following multiple PUR search space windows.
In fig. 4, the number of the plurality of PUR search space windows is 4, and the duration of the plurality of PUR search space windows refers to a time point or a time period when the wake-up signal can be transmitted between each PUR and its associated PUR search space window. Fig. 4 takes "x" to indicate that the transmitted wake-up signal is omitted, i.e. the network does not transmit the wake-up signal at the position/time period marked "x". Therefore, the UE does not need to receive the wake-up signal in the corresponding time period, and power consumption can be greatly saved. Further, in fig. 4, corresponding to each PUR during the search space window of the plurality of PURs, the UE does not have uplink data, and does not need to send downlink beam information based on the PURs.
In summary, in the embodiments of the present invention, when the UE sends uplink data, the network may indicate whether the UE needs to monitor a downlink scheduling PDCCH in an uplink preconfigured resource spatial window through the ACK DCI/NACK carrying indication information corresponding to the uplink data. Otherwise, when the UE does not send uplink data, the network may send the indication information through a wake-up signal, where the wake-up signal is located between the uplink preconfigured resource and the uplink preconfigured resource search space window. In addition, the uplink data may include uplink data and downlink beam information. By the technical scheme provided by the embodiment of the invention, the power consumption of the terminal can be greatly saved.
For more details about the working principle and the working mode of the specific embodiment of fig. 3 and fig. 4, reference may be made to the related description in fig. 1 and fig. 2, and details are not repeated here.
Fig. 5 is a schematic structural diagram of a signaling sending apparatus according to an embodiment of the present invention. The signaling device 5 may implement the method shown in fig. 1, and is executed by the base station side.
Specifically, the signaling device 5 may include: and an issuing module 52, configured to issue indication information, where the indication information is used to indicate whether the terminal monitors the PDCCH in the PUR search space window.
Further, the signaling device 5 may further include: the receiving module 51 is configured to receive uplink data before issuing the indication information, where the uplink data is transmitted by using a PUR.
For more contents of the operation principle and the operation mode of the signaling device 5, reference may be made to the related descriptions in fig. 1, fig. 3, and fig. 4, which are not repeated herein.
Fig. 6 is a schematic structural diagram of a signaling receiving apparatus according to an embodiment of the present invention. The signaling receiving apparatus 6 may implement the method of fig. 2, and is executed by the base station side.
Specifically, the signaling receiving apparatus 6 may include: a receiving module 62, configured to receive indication information, where the indication information is used to indicate whether the terminal monitors the PDCCH in the PUR search space window.
Further, the signaling receiving apparatus 6 may further include: a sending module 61, configured to send uplink data before receiving the indication information, where the uplink data is transmitted by using a PUR.
For more contents of the operation principle and the operation mode of the signaling receiving apparatus 6, reference may be made to the related descriptions in fig. 2 to fig. 4, which are not described herein again.
Further, an embodiment of the present invention further discloses a storage medium, on which a computer instruction is stored, where the computer instruction executes the method technical solution described in the embodiment shown in fig. 1 or the method technical solution described in the embodiment shown in fig. 2 when the computer instruction runs. Preferably, the storage medium may include a computer-readable storage medium such as a non-volatile (non-volatile) memory or a non-transitory (non-transient) memory. The computer readable storage medium may include ROM, RAM, magnetic or optical disks, and the like.
Further, an embodiment of the present invention further discloses a base station, which includes a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the computer instructions to execute the technical solutions of the methods in the embodiments shown in fig. 1, fig. 3, and fig. 4. Specifically, the base station may be an NR base station.
Further, an embodiment of the present invention further discloses a terminal, which includes a memory and a processor, where the memory stores a computer instruction capable of running on the processor, and the processor executes the method technical solution described in the embodiments shown in fig. 2 to fig. 4 when running the computer instruction. Preferably, the terminal may interact with a base station, and specifically, the terminal may be an NR terminal.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (23)

1. A method for signaling, comprising:
issuing indication information, wherein the indication information is used for indicating whether a terminal monitors a PDCCH in a PUR search space window;
the issuing indication information comprises: if the uplink data is not received on the PUR, sending the indication information by adopting a wake-up signal; the wake-up signal is positioned between the PUR and a PUR search space window, and the PUR search space window is associated with the PUR;
before the following indication information is sent, the method further comprises the following steps: issuing a first offset or a second offset; wherein the first offset is an offset between the wake-up signal and the PUR, the first offset is a fixed value, the second offset is an offset between the wake-up signal and a PUR search space window, and the second offset is a fixed value.
2. The method of claim 1, wherein before sending the indication information, the method further comprises:
and receiving uplink data, wherein the uplink data is transmitted by adopting PUR.
3. The signaling method of claim 2, wherein the indication information is sent down by ACK DCI/NACK associated with the uplink data.
4. The signaling method according to claim 2, wherein the uplink data includes downlink beam information, and the downlink beam information includes a downlink beam that the terminal desires to use.
5. The signaling method of claim 1, wherein the indication information is sent by a wake-up signal.
6. The signaling method according to any one of claims 1 to 5, wherein the number of the PUR search space windows is multiple, and the indication information is used to indicate whether the terminal monitors the PDCCH in each PUR search space window.
7. The signaling method according to any one of claims 1 to 5, wherein the number of the PUR search space windows is multiple, and when the indication information indicates that the terminal suspends monitoring the PDCCH in the multiple PUR search space windows, the indication information is further used to indicate that the terminal suspends receiving the wake-up signal during the multiple PUR search space windows.
8. The signaling method of claim 7, wherein the indication information is further configured to instruct the terminal to suspend sending downlink beam information during a plurality of the PUR search space windows, and the downlink beam information includes a downlink beam that the terminal desires to use.
9. The signaling method of claim 7, wherein a total number of the PUR search space windows is N, N is selected from a set of preset values, and N is a positive integer.
10. A signaling reception method, comprising:
receiving indication information, wherein the indication information is used for indicating whether a terminal monitors a PDCCH in a PUR search space window;
the receiving indication information includes: if uplink data is not sent by the PUR, detecting a wake-up signal to receive the indication information, wherein the wake-up signal is positioned between the PUR and a PUR search space window, and the PUR search space window is associated with the PUR; the wake-up signal is positioned between the PUR and a PUR search space window, and the PUR search space window is associated with the PUR;
before receiving the indication information, the method further comprises: receiving a first offset or a second offset; wherein the first offset is an offset between the wake-up signal and the PUR, the first offset is a fixed value, the second offset is an offset between the wake-up signal and a PUR search space window, and the second offset is a fixed value.
11. The signaling reception method according to claim 10, characterized in that before receiving indication information, the method further comprises:
and sending uplink data, wherein the uplink data is transmitted by adopting PUR.
12. The signaling receiving method of claim 11, wherein the indication information is sent down by ACK DCI/NACK associated with the uplink data.
13. The signaling receiving method of claim 11, wherein the uplink data includes downlink beam information, and the downlink beam information includes a downlink beam that the terminal desires to use.
14. The signaling receiving method of claim 10, wherein the indication information is carried and transmitted by a wake-up signal.
15. The signaling receiving method according to any of claims 10 to 14, wherein the number of the PUR search space windows is multiple, and the indication information is used to indicate whether the terminal monitors the PDCCH in each PUR search space window.
16. The signaling receiving method according to any of claims 10 to 14, wherein the number of the PUR search space windows is multiple, and when the indication information indicates that the terminal suspends monitoring the PDCCH in multiple PUR search space windows, the indication information is further used for indicating that the terminal suspends receiving the wake-up signal during multiple PUR search space windows.
17. The signaling receiving method of claim 16, wherein the indication information is further used to instruct the terminal to suspend sending downlink beam information during a plurality of the PUR search space windows, and the downlink beam information includes a downlink beam that the terminal desires to use.
18. The signaling receiving method of claim 16, wherein a total number of the plurality of PUR search space windows is N, N is selected from a set of preset values, and N is a positive integer.
19. A signaling apparatus, comprising:
the issuing module is used for issuing indication information, and the indication information is used for indicating whether the terminal monitors the PDCCH in the PUR search space window; the issuing indication information comprises: if the uplink data is not received on the PUR, sending the indication information by adopting a wake-up signal; the wake-up signal is positioned between the PUR and a PUR search space window, and the PUR search space window is associated with the PUR;
before the following indication information is sent, the method further comprises the following steps: issuing a first offset or a second offset; wherein the first offset is an offset between the wake-up signal and the PUR, the first offset is a fixed value, the second offset is an offset between the wake-up signal and a PUR search space window, and the second offset is a fixed value.
20. A signaling receiving apparatus, comprising:
a receiving module, configured to receive indication information, where the indication information is used to indicate whether a terminal monitors a PDCCH in a PUR search space window; the receiving indication information includes: if uplink data is not sent by the PUR, detecting a wake-up signal to receive the indication information, wherein the wake-up signal is positioned between the PUR and a PUR search space window, and the PUR search space window is associated with the PUR; the wake-up signal is positioned between the PUR and a PUR search space window, and the PUR search space window is associated with the PUR;
before receiving the indication information, the method further comprises: receiving a first offset or a second offset; wherein the first offset is an offset between the wake-up signal and the PUR, the first offset is a fixed value, the second offset is an offset between the wake-up signal and a PUR search space window, and the second offset is a fixed value.
21. A storage medium having stored thereon computer instructions, which when executed by a processor, perform the steps of the method of any one of claims 1 to 18.
22. A base station comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of any one of claims 1 to 9.
23. A terminal comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of any one of claims 10 to 18.
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