CN113141659B - Method and device for beam management - Google Patents

Method and device for beam management Download PDF

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Publication number
CN113141659B
CN113141659B CN202010065400.6A CN202010065400A CN113141659B CN 113141659 B CN113141659 B CN 113141659B CN 202010065400 A CN202010065400 A CN 202010065400A CN 113141659 B CN113141659 B CN 113141659B
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terminal
csi
rsrp
reported
channel
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CN113141659A (en
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杨拓
王飞
胡丽洁
王启星
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H04B17/327—Received signal code power [RSCP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • 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
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a method and equipment for beam management, wherein the method comprises the following steps: and the terminal does not start the DRX-onDuration timer or does not detect the PDCCH in the DRX-onDuration timer running time according to the indication of the energy-saving signal/channel, and reports the CSI in the DRX-onDuration timer running time or the DRX activation period. Therefore, if the optimal beam reported by the terminal CSI is different from the energy-saving signal/channel configured for the terminal by the current network side or other CORESET optimal beams, the terminal can forcibly start to receive the PDCCH so as to receive the updated configuration information of the TCI state issued by the network side, and the limitation that the energy-saving signal indicates that the terminal cannot detect the PDCCH is not considered.

Description

Method and device for beam management
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a method and equipment for beam management.
Background
A beam management technology is introduced into a New Radio (NR), and in order to ensure accuracy and robustness based on beam transmission, a base station and a terminal need to perform mutual beam measurement and determination in a transmission process to ensure that a correct beam is used for control and transmission of a traffic channel. The beam management is divided into: beam measurement, beam reporting and beam distribution. In the NR, a measurement resource, a feedback resource, and a report amount are configured for the terminal through a Channel State Information (CSI) feedback mechanism, so as to complete two steps of beam measurement and report.
The terminal may perform beam measurement, that is, measurement of Layer 1Reference Signal received power (l 1-RSRP), on a plurality of configured measurement resources, for example, CSI Reference Signal (CSI-RS) or synchronization Signal/physical broadcast channel Signal Block (SS/PBCH Block, SSB). If the network side configures the terminal to report a beam, the terminal reports an RSRP value of the optimal beam and a corresponding CSI-RS index or an SSB index on a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH); if the network side configures the terminal to report a plurality of beams, the terminal also needs to report RSRP differences between other beams and the optimal beam. After the terminal reports the wave beam, the base station can distribute the downlink wave beam to the terminal, and the terminal carries out channel estimation according to the indicated quasi-co-located wave beam.
The network side indicates a used beam direction of a Physical Downlink Control Channel (PDCCH) through Radio Resource Control (RRC) signaling or a Medium Access Control Element (MAC CE), and dynamically indicates a used beam direction of a Physical Downlink Shared Channel (PDSCH) through Downlink Control Information (DCI). If the terminal configures Discontinuous Reception (DRX), the terminal can only measure and report CSI during DRX active period or DRX on duration timer (DRX duration timer). Since the beam management is also part of the CSI feedback mechanism, that is, the terminal can only perform the beam measurement and reporting procedure during the DRX active period or DRX on duration timer.
According to the current DRX procedure, the terminal cannot measure and report the CSI in the inactive period. If the terminal has no service for a long time, the base station cannot receive the CSI measurement result of the terminal for a long time, on one hand, the channel state information cannot be acquired, on the other hand, the beam measurement information cannot be acquired, and appropriate PDCCH and PDSCH beam information cannot be configured for the terminal.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a method and a device for beam management, which solve the problem that a terminal cannot measure and report CSI in an inactive period.
In a first aspect, an embodiment of the present invention provides a method for beam management, which is applied to a terminal, and includes:
and the terminal does not start a discontinuous reception duration timer DRX-onDurationTimer according to the indication of the energy-saving signal/channel, or does not detect a Physical Downlink Control Channel (PDCCH) in the running time of the DRX-onDurationTimer, and reports the CSI in the running time of the DRX-onDurationTimer or the discontinuous reception DRX activation period.
Optionally, the method further comprises: and detecting the PDCCH after CSI is reported within the time without starting the DRX-onDuration timer or after CSI is reported within the DRX inactive period without starting the DRX-onDuration timer.
Optionally, the reporting CSI includes:
and reporting the CSI according to the CSI measurement and/or reporting rule.
Optionally, the CSI measurement and/or reporting rule is determined by at least one of the following reporting amounts or parameters:
RSRP for layer 1;
an SSB resource indicator;
a CSI RS resource indicator;
state configuration information of TCI of CORESET;
a threshold value of RSRP.
Optionally, the method further comprises:
stopping detecting the PDCCH after receiving status configuration information or indication information of TCI.
Optionally, the method further comprises:
and receiving a high-level signaling from a network side, wherein the high-level signaling is used for configuring a time domain starting position and/or a time window for the terminal to detect the PDCCH.
Optionally, the method further comprises:
after configuration information or indication information of a TCI state sent by a network side is received, a short DRX period or a long DRX period is used;
alternatively, the first and second electrodes may be,
and after the detection time of the PDCCH is finished, using a short DRX period or a long DRX period.
In a second aspect, an embodiment of the present invention further provides a method for beam management, which is applied to a network device, and includes:
and sending an energy-saving signal/channel to a terminal, wherein the energy-saving signal/channel indicates that the terminal does not start a DRX-onDurationTimer or does not detect a PDCCH in the DRX-onDurationTimer running time, and the CSI is reported in the DRX-onDurationTimer running time or a DRX activation period.
Optionally, the method further comprises:
and after receiving CSI report of the terminal in the time without starting the DRX onDurationTimer or receiving the CSI report of the terminal in the DRX inactive period of the DRX onDurationTimer, sending the PDCCH to the terminal.
Optionally, the CSI report is reported by the terminal according to CSI measurement and/or a reporting rule.
Optionally, the CSI measurement and/or reporting rule is determined by at least one of the following reporting amounts or parameters:
RSRP for layer 1;
an SSB resource indicator;
a CSI-RS resource indicator;
TCI state configuration information of CORESET;
a threshold value of RSRP.
Optionally, the method further comprises: sending configuration information of the TCI state or indication information of the TCI state to the terminal;
and after the terminal receives the state configuration information or the indication information of the TCI, stopping sending the PDCCH.
Optionally, the method further comprises:
and sending a high-level signaling to the terminal, wherein the high-level signaling is used for configuring a time domain starting position and/or a time window for the terminal to detect the PDCCH.
In a third aspect, an embodiment of the present invention further provides a terminal, including:
the first detection module is used for detecting the energy-saving signal/channel; according to the indication of the energy-saving signal/channel, not starting DRX-onDurationTimer, or not detecting PDCCH in DRX-onDurationTimer running time, and reporting CSI in the DRX-onDurationTimer running time or DRX active period.
In a fourth aspect, an embodiment of the present invention further provides a network device, including:
a first sending module, configured to send an energy saving signal/channel to a terminal, where the energy saving signal/channel indicates that the terminal does not start a DRX-onDurationTimer or does not detect a PDCCH within a DRX-onDurationTimer running time, and performs CSI reporting within the DRX-onDurationTimer running time or a DRX active period.
In a fifth aspect, an embodiment of the present invention further provides a communication device, including: memory, a processor and a program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the steps in the method of beam management according to the first or second aspect.
In a sixth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the method for beam management according to the first aspect or the second aspect.
In the embodiment of the invention, the terminal can still perform the measurement report of the CSI in the period of not detecting the PDCCH, and if the optimal wave beam in the CSI report of the terminal is different from the energy-saving signal/channel configured for the terminal by the current network side or other CORESET optimal wave beams, the terminal can forcibly start to receive the PDCCH so as to receive the updated configuration information of the TCI state issued by the network side, without considering the limitation that the energy-saving signal indicates that the terminal cannot detect the PDCCH. Therefore, the network side can update the energy-saving signal/channel and the beam direction of other CORESET for the terminal, and the problem of wrong reception caused by wrong beam direction when the terminal needs to receive the energy-saving signal or PDCCH next time is prevented.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a block diagram of a wireless communication system according to an embodiment of the present invention;
fig. 2 is a flowchart of a method of beam management according to an embodiment of the invention;
fig. 3 is a second flowchart of a method of beam management according to an embodiment of the invention;
fig. 4 is a schematic diagram of a terminal according to an embodiment of the present invention;
fig. 5 is a second schematic diagram of a terminal according to the embodiment of the invention;
FIG. 6 is a diagram of one embodiment of a network device;
FIG. 7 is a second schematic diagram of a network device according to the second embodiment of the invention;
fig. 8 is a schematic diagram of a communication device according to an embodiment of the present invention.
Detailed Description
In Release 15 (Release 15, R15) standard, if the terminal configures DRX, PDCCH detection is performed only during the active period. However, in some DRX cycles, the terminal may not be scheduled at all, and the terminal still detects the PDCCH in the DRX cycle, consuming useless energy consumption. Therefore, in Release 16 (Release 16, R16) terminal power saving research, one of the roles of the power saving signal is to indicate whether the terminal detects the PDCCH during the associated DRX active period or DRX on duration. The energy-saving signal adopts a structure of a downlink control channel and is detected outside an activation period of DRX.
Before no energy-saving signal is introduced, the terminal has an opportunity to detect the PDCCH in each DRX period, and if the network side finds that the optimal beam reported by the terminal is not aligned with the beam of the detected PDCCH configured for the terminal at present, the network side can reconfigure the activated beam direction of the PDCCH through RRC signaling or MAC CE.
However, after the energy saving signal is introduced, if the network side finds that there is no data of a certain terminal currently, the network side may instruct the terminal not to turn on DRX-onDurationTimer and not to detect PDCCH in the DRX cycle. But the higher layer signaling can configure the terminal to still perform periodic CSI reporting or layer 1 RSRP reporting in the DRX period without turning on the DRX-onDurationTimer.
The base station may configure the terminal to report the CSI in a DRX cycle in which the PDCCH is not detected, but the terminal still cannot detect the PDCCH, that is, the terminal finds that the beam direction of its own energy saving signal/channel or other CORESET changes and reports the change to the base station, and the terminal cannot receive the beam reconfiguration information of the base station in the current DRX cycle.
Therefore, after the power saving signal is introduced, a problem may occur in beam management of the PDCCH. Especially, the energy-saving signal is also a PDCCH, and if the beam management of the energy-saving signal itself is problematic, the terminal may not receive the energy-saving signal for a long time, resulting in a final link failure. Especially for high frequency band, due to the problems of shielding, terminal movement and the like, the problem of beam management of the PDCCH in the scene of introducing energy-saving signals is more important. If the terminal is not awake for a long time and does not report CSI, the base station may not take the channel state information and the beam measurement information of the terminal for a long time, which may cause deviation of the beam configuration information of the power saving signal/channel, and the terminal may not detect the power saving signal/channel at the time that the terminal needs to be awake.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "comprises," "comprising," or any other variation thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B, means that three cases, a alone, B alone, and both a and B, exist.
In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
The power saving signal/channel described herein is a kind of PDCCH for indicating power saving information of the terminal.
The technology described herein is not limited to a fifth-generation mobile communication (5 th-generation, 5G) system and a later-evolution communication system, and is not limited to an LTE/LTE evolution (LTE-a) system, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal Frequency Division Multiple Access (OFDMA), single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems.
The terms "system" and "network" are often used interchangeably. CDMA systems may implement Radio technologies such as CDMA2000, universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved UTRA (Evolution-UTRA, E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, and GSM are described in documents from an organization named "third Generation Partnership project" (3 rd Generation Partnership project,3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3 GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies.
Referring to fig. 1, an embodiment of the present invention will be described below with reference to the accompanying drawings. The method and the equipment for beam management provided by the embodiment of the invention can be applied to a wireless communication system. Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present invention. As shown in fig. 1, the wireless communication system may include: a network device 11 and a terminal 12, the terminal 12 may be denoted as UE12, and the terminal 12 may communicate (transmit signaling or transmit data) with the network device 11. In practical applications, the connections between the above devices may be wireless connections, and fig. 1 illustrates the connections between the devices by solid lines for convenience and convenience in visual representation.
The network device 11 provided in the embodiment of the present invention may be a base station, which may be a commonly used base station, an evolved node base (eNB), or a network device in a 5G system (e.g., a next generation base station (gNB) or a Transmission and Reception Point (TRP)).
The terminal 12 provided in the embodiment of the present invention may be a Mobile phone, a tablet Computer, a notebook Computer, an Ultra-Mobile Personal Computer (UMPC), a netbook or a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device.
Referring to fig. 2, an embodiment of the present invention provides a method for beam management, where an execution subject of the method is a terminal, and the method includes: step 201.
Step 201: and the terminal does not start the DRX-onDuration timer or does not detect the PDCCH in the DRX-onDuration timer running time according to the indication of the energy-saving signal/channel, and reports the CSI in the DRX-onDuration timer running time or the DRX activation period.
In some embodiments, the method further comprises: and detecting the PDCCH after CSI is reported within the time without starting the DRX-onDuration timer or after CSI is reported within the DRX inactive period without starting the DRX-onDuration timer.
In some embodiments, the content of CSI reporting may include: layer 1reference signal received power (L1-RSRP).
If the index of the reference signal corresponding to the optimal L1-RSRP reported by the terminal is different from the reference signal in the state of a Control Resource SET (core SET) associated with the energy saving signal/channel of the terminal and/or a Transmission Configuration Indicator (TCI) configured for other non-associated core SET at the current network side, it is proved that the optimal beam direction of the terminal at present changes. After reporting CSI, the terminal starts to detect the PDCCH of a certain search space according to the configuration of the network side without being restricted by an energy-saving signal/channel of the network side, the network side updates the beam direction of the CORESET associated with the energy-saving signal/channel of the terminal and/or other non-associated CORESET by the PDSCH scheduled by the PDCCH carrying the configuration or indication signaling of a new TCI state, and the terminal does not continue to detect the PDCCH of the search space after receiving the configuration or indication information of the TCI state.
In the embodiment of the present invention, reporting CSI may include: and reporting the CSI according to the CSI measurement and/or reporting rule, namely detecting the PDCCH after reporting the CSI according to the CSI measurement and/or reporting rule.
For example, the PDCCH is detected or the search space of the PDCCH is detected within a time window (or timer) after reporting CSI according to CSI measurement and/or reporting rules.
In some embodiments, the method shown in fig. 2 may further include: and receiving high-layer signaling from the network side, wherein the high-layer signaling is used for configuring a time domain starting position and/or a time window (or a timer) for detecting the PDCCH by the terminal.
Illustratively, the terminal receives the length of a time window (or timer) configured by the network side through higher layer signaling; or, the terminal receives a time domain offset value which is configured by a network side through a high-level signaling and used for starting to detect the PDCCH and the terminal reporting the CSI. In this way, the terminal can detect the PDCCH or detect a specific search space according to configuration information of a time window (or timer) and/or a time domain offset value.
In some embodiments, the CSI measurement and/or reporting rule is determined by at least one of the following reporting amounts or parameters:
(1)L1-RSRP；
(2) An SSB resource indicator;
(3) A CSI-RS resource indicator;
(4) State configuration information of TCI of CORESET;
(5) A threshold value of RSRP.
In some embodiments, the CSI measurement and/or reporting rule may include at least one of the following:
(1) The content or the report quantity of the CSI measured and/or reported by the terminal comprises LI-RSRP;
(2) The L1-RSRP measured and/or reported by the terminal is greater than or equal to a certain RSRP threshold value;
(3) The SSB or CSI-RS resource corresponding to the SSB or CSI-RS resource indicator measured and/or reported by the terminal is not completely the same as or completely different from the resource of the configured reference signal in the state configuration information of the CORESET associated with the energy saving signal/channel and/or the activated TCI of other CORESET;
(4) The SSB resource indicator corresponding to the maximum L1-RSRP or the SSB or CSI-RS resource indicator measured and/or reported by the terminal is different from the resources of the CORESET associated with the energy-saving signal/channel and/or the configured reference signals in the TCI state configuration information of other CORESETs;
(5) The terminal and/or the SSB resource indicator corresponding to the reported maximum L1-RSRP or the SSB or CSI-RS resource corresponding to the CSI-RS resource indicator is different from the resources of the configured reference signals in the CORESET associated with the energy-saving signal/channel and/or the activated TCI state configuration information of other CORESETs, and the difference value of the reported maximum L1-RSRP and the L1-RSRP of the configured reference signals in the CORESET associated with the energy-saving signal/channel and/or the activated TCI state configuration information of other CORESETs measured by the terminal is greater than or equal to a certain RSRP threshold value.
In some embodiments, the method shown in fig. 2 may further include: stopping detecting the PDCCH after receiving status configuration information or indication information of TCI.
Optionally, the terminal uses the short DRX cycle or the long DRX cycle after receiving the configuration information or the indication information of the TCI status sent by the network side, or the terminal uses the short DRX cycle or the long DRX cycle after the time window for detecting the PDCCH is ended (or after the timer expires).
In the embodiment of the invention, the terminal can still perform CSI measurement and report in the period of not detecting the PDCCH. Therefore, if the optimal beam reported by the terminal CSI is different from the energy-saving signal/channel configured for the terminal by the current network side or other CORESET optimal beams, the terminal can forcibly start to receive the PDCCH so as to receive the updated configuration information of the TCI state issued by the network side, and the limitation that the energy-saving signal indicates that the terminal cannot detect the PDCCH is not considered. Therefore, the network side can update the energy-saving signal/channel and the beam direction of other CORESET for the terminal, and the problem of wrong reception caused by wrong beam direction when the terminal needs to receive the energy-saving signal or PDCCH next time is prevented.
Referring to fig. 3, an embodiment of the present invention provides a method for beam management, where an execution subject of the method is a network device, and the method includes: step 301.
Step 301: and sending an energy-saving signal/channel to a terminal, wherein the energy-saving signal/channel indicates that the terminal does not start a DRX-onDurationTimer or does not detect a PDCCH in the DRX-onDurationTimer running time, and the CSI is reported in the DRX-onDurationTimer running time or a DRX activation period.
In some embodiments, the method further comprises: and after receiving CSI report of the terminal in the time without starting the DRX onDurationTimer or receiving the CSI report of the terminal in the DRX inactive period of the DRX onDurationTimer, sending the PDCCH to the terminal.
In some embodiments, the CSI reporting is performed by the terminal according to a CSI measurement and/or reporting rule, that is, after receiving CSI reported by the terminal according to the CSI measurement and/or reporting rule, the CSI reporting is performed by the terminal, and then the PDCCH is sent to the terminal.
In some embodiments, the CSI measurement and/or reporting rule is determined by at least one of the following reporting amounts or parameters:
(1)L1-RSRP；
(2) An SSB resource indicator;
(3) A CSI-RS resource indicator;
(4) State configuration information of TCI of CORESET;
(5) A threshold value of RSRP.
In some embodiments, the CSI measurement and/or reporting rules may include at least one of:
(1) The content or the report quantity of the CSI measured and/or reported by the terminal comprises LI-RSRP;
(2) The L1-RSRP measured and/or reported by the terminal is greater than or equal to a certain RSRP threshold value;
(3) The resources of the configured reference signals in the state configuration information of the CORESET associated with the energy-saving signal/channel and/or the activated TCI of other CORESET corresponding to the SSB resource indicator or CSI-RS resource indicator measured and/or reported by the terminal are not completely the same or different;
(4) The SSB resource indicator corresponding to the maximum L1-RSRP or the SSB or CSI-RS resource indicator measured and/or reported by the terminal is different from the resources of the CORESET associated with the energy-saving signal/channel and/or the configured reference signals in the activated TCI state configuration information of other CORESETs;
(5) The terminal and/or the SSB resource indicator corresponding to the reported maximum L1-RSRP or the SSB or CSI-RS resource corresponding to the CSI-RS resource indicator is different from the resources of the configured reference signals in the CORESET associated with the energy-saving signal/channel and/or the activated TCI state configuration information of other CORESETs, and the difference value of the reported maximum L1-RSRP and the L1-RSRP of the configured reference signals in the CORESET associated with the energy-saving signal/channel and/or the activated TCI state configuration information of other CORESETs measured by the terminal is greater than or equal to a certain RSRP threshold value.
In some embodiments, the method shown in fig. 3 may further include: sending configuration information of the TCI state or indication information of the TCI state to the terminal;
and after the terminal receives the state configuration information or the indication information of the TCI, stopping sending the PDCCH.
In some embodiments, the method shown in fig. 3 may further include: and sending a high-level signaling to the terminal, wherein the high-level signaling is used for configuring a time domain starting position and/or a time window for the terminal to detect the PDCCH.
Illustratively, the network side configures the length of the time window (or timer) for the terminal through high-layer signaling. Or the network side configures a time domain deviation value for the terminal after the terminal reports the CSI for starting to detect the PDCCH through a high-level signaling.
In the embodiment of the invention, the terminal can still perform CSI measurement and report in the period of not detecting the PDCCH. Therefore, if the optimal beam reported by the terminal CSI is different from the energy-saving signal/channel or other CORESET optimal beams configured for the terminal by the current network side, the terminal can forcibly start to receive the PDCCH so as to receive the updated configuration information of the TCI state issued by the network side, and the limitation that the energy-saving signal indicates that the terminal cannot detect the PDCCH is not considered. Therefore, the network side can update the energy-saving signal/channel and the beam direction of other CORESET for the terminal, and the problem of wrong reception caused by wrong beam direction when the terminal needs to receive the energy-saving signal or PDCCH next time is prevented.
Referring to fig. 4, an embodiment of the present invention further provides a terminal, where the terminal 400 includes:
a first detection module 401, configured to detect a power saving signal/channel; and according to the indication of the energy-saving signal/channel, not starting DRX-onDuration timer, or not detecting PDCCH in the running time of the DRX-onDuration timer, and reporting CSI in the running time of the DRX-onDuration timer or the DRX activation period.
In the embodiment of the present invention, the terminal 400 further includes: and the second detection module is used for detecting the PDCCH after CSI is reported within the time that the DRX-onDurationTimer is not started or the DRX inactivity period that the DRX-onDurationTimer is not started.
In this embodiment of the present invention, the reporting CSI includes: and reporting the CSI according to the CSI measurement and/or reporting rule.
In the embodiment of the present invention, the CSI measurement and/or reporting rule is determined by at least one of the following reporting amounts or parameters:
(1)L1-RSRP；
(2) An SSB resource indicator;
(3) A CSI-RS resource indicator;
(4) State configuration information of TCI of CORESET;
(5) A threshold value for RSRP.
In this embodiment of the present invention, the second detecting module 401 is further configured to: stopping detecting the PDCCH after receiving status configuration information or indication information of a Transmission Configuration Indication (TCI).
In this embodiment of the present invention, the terminal 400 further includes:
a first receiving module, configured to receive a high-level signaling from a network side, where the high-level signaling is used to configure a time domain starting position and/or a time window for the terminal to detect the PDCCH.
In this embodiment of the present invention, the terminal 400 further includes: the period adjusting module is used for using a short DRX period or a long DRX period after receiving configuration information or indication information of a TCI state sent by a network side; or, after the detection time of the PDCCH is ended, a short DRX cycle or a long DRX cycle is used.
The terminal provided in the embodiment of the present invention may execute the method embodiment shown in fig. 2, which has similar implementation principles and technical effects, and this embodiment is not described herein again.
Referring to fig. 5, an embodiment of the present invention further provides a terminal, where the terminal 500 includes: a first transceiver 501 and a first processor 502; wherein, the first and the second end of the pipe are connected with each other,
a first processor 502 for detecting power save signals/channels; according to the indication of the energy-saving signal/channel, not starting DRX-onDurationTimer, or not detecting PDCCH in DRX-onDurationTimer running time, and reporting CSI in the DRX-onDurationTimer running time or DRX active period.
In this embodiment of the present invention, the first processor 502 is further configured to: and detecting the PDCCH after CSI is reported within the time without starting the DRX-onDuration timer or after CSI is reported within the DRX inactive period without starting the DRX-onDuration timer.
In this embodiment of the present invention, the reporting CSI includes: and reporting the CSI according to the CSI measurement and/or reporting rule.
In the embodiment of the present invention, the CSI measurement and/or reporting rule is determined by at least one of the following reporting amounts or parameters:
(1)L1-RSRP；
(2) An SSB resource indicator;
(3) A CSI-RS resource indicator;
(4) State configuration information of TCI of CORESET;
(5) A threshold value for RSRP.
In this embodiment of the present invention, the first processor 502 is further configured to: stopping detecting the PDCCH after receiving status configuration information or indication information of a Transmission Configuration Indication (TCI).
In this embodiment of the present invention, the first transceiver 501 is configured to: and receiving a high-level signaling from a network side, wherein the high-level signaling is used for configuring a time domain starting position and/or a time window for the terminal to detect the PDCCH.
In this embodiment of the present invention, the first processor 502 is further configured to: after configuration information or indication information of a TCI state sent by a network side is received, a short DRX period or a long DRX period is used; or, after the detection time of the PDCCH is ended, a short DRX cycle or a long DRX cycle is used.
The terminal provided in the embodiment of the present invention may execute the method embodiment shown in fig. 2, which has similar implementation principles and technical effects, and this embodiment is not described herein again.
Referring to fig. 6, an embodiment of the present invention further provides a network device, where the network device 600 includes:
a first sending module 601, configured to send an energy saving signal/channel to a terminal, where the energy saving signal/channel indicates that the terminal does not start a DRX-onDurationTimer or does not detect a PDCCH within a DRX-onDurationTimer running time, and performs CSI reporting within the DRX-onDurationTimer running time or a DRX active period.
In this embodiment of the present invention, the network device 600 further includes: and the second sending module is used for sending the PDCCH to the terminal after receiving the CSI report of the terminal in the time without starting the DRX-onDurationTimer or after receiving the CSI report of the terminal in the DRX inactive period of the DRX-onDurationTimer which is not started.
In the embodiment of the present invention, the CSI report is reported by the terminal according to CSI measurement and/or a reporting rule.
In the embodiment of the present invention, the CSI measurement and/or reporting rule may be determined by at least one of the following reporting amounts or parameters:
(1)L1-RSRP；
(2) An SSB resource indicator;
(3) A CSI-RS resource indicator;
(4) State configuration information of TCI of CORESET;
(5) A threshold value for RSRP.
In this embodiment of the present invention, the second sending module is further configured to: sending configuration information of the TCI state or indication information of the TCI state to the terminal; and after the terminal receives the state configuration information or the indication information of the TCI, stopping sending the PDCCH.
In this embodiment of the present invention, the network device 600 further includes: and a third sending module, configured to send a high-level signaling to the terminal, where the high-level signaling is used to configure a time domain starting position and/or a time window for the terminal to detect the PDCCH.
The network device provided in the embodiment of the present invention may execute the method embodiment shown in fig. 3, which has similar implementation principles and technical effects, and this embodiment is not described herein again.
Referring to fig. 7, an embodiment of the present invention further provides a network device, where the network device 700 includes: a second transceiver 701 and a second processor 702; wherein, the first and the second end of the pipe are connected with each other,
a second transceiver 701, configured to send an energy saving signal/channel to a terminal, where the energy saving signal/channel indicates that the terminal does not start a DRX-onDurationTimer or does not detect a PDCCH within a DRX-onDurationTimer running time, and performs CSI reporting within the DRX-onDurationTimer running time or a DRX active period.
In some embodiments, the second transceiver 701 is further configured to transmit the PDCCH to the terminal after receiving a CSI report by the terminal without turning on DRX-onDurationTimer, or after receiving a CSI report by the terminal during DRX-onDurationTimer running time without detecting the PDCCH, or after receiving a CSI report by the terminal during DRX active time, or after receiving a CSI report by the terminal during DRX cycle.
In the embodiment of the present invention, the CSI report is reported by the terminal according to CSI measurement and/or a reporting rule.
In the embodiment of the present invention, the CSI measurement and/or reporting rule may be determined by at least one of the following reporting amounts or parameters:
(1)L1-RSRP；
(2) An SSB resource indicator;
(3) A CSI-RS resource indicator;
(4) State configuration information of TCI of CORESET;
(5) A threshold value of RSRP.
In this embodiment of the present invention, the second transceiver 701 is further configured to: sending configuration information of the TCI state or indication information of the TCI state to the terminal; and after the terminal receives the state configuration information or the indication information of the TCI, stopping sending the PDCCH.
In this embodiment of the present invention, the second transceiver 701 is further configured to: and sending a high-level signaling to the terminal, wherein the high-level signaling is used for configuring a time domain starting position and/or a time window for the terminal to detect the PDCCH.
The network device provided in the embodiment of the present invention may execute the method embodiment shown in fig. 3, which has similar implementation principles and technical effects, and this embodiment is not described herein again.
Referring to fig. 8, fig. 8 is a structural diagram of a communication device according to an embodiment of the present invention, and as shown in fig. 8, the communication device 800 includes: a processor 801, a transceiver 802, a memory 803, and a bus interface, wherein:
in one embodiment of the present invention, the communication device 800 further comprises: a computer program stored on the memory 803 and executable on the processor 801, which computer program when executed by the processor 801 performs the steps in the embodiments shown in fig. 2 or fig. 3.
In FIG. 8, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by a processor 801 and various circuits represented by a memory 803 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 802 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
The processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 801 in performing operations.
The communication device provided in the embodiment of the present invention may execute the method embodiment shown in fig. 2 or fig. 3, which implements similar principles and technical effects, and this embodiment is not described herein again.
The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or may be embodied in software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, a removable hard disk, a compact disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may be carried in a core network interface device. Of course, the processor and the storage medium may reside as discrete components in a core network interface device.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass these modifications and variations.

Claims (11)

1. A method for beam management, applied to a terminal, includes:
the terminal does not start a discontinuous reception duration timer drx-onDurationTimer according to the indication of the energy-saving signal/channel;
after CSI is reported according to CSI measurement and/or reporting rules within the time that the drx-onDurationTimer is not started, the PDCCH is detected;
after receiving state configuration information or indication information of the TCI carried by the PDSCH scheduled by the PDCCH, stopping detecting the PDCCH;
wherein the CSI measurement and/or reporting rules include at least one of:
the content or the reported quantity of the CSI measured and/or reported by the terminal comprises LI-RSRP;
the L1-RSRP measured and/or reported by the terminal is greater than or equal to a certain RSRP threshold value;
the SSB or CSI-RS resource corresponding to the SSB resource indicator or CSI-RS resource indicator measured and/or reported by the terminal is not completely the same as or completely different from the resource of the configured reference signal in the energy saving signal/channel-associated core set and/or the activated TCI state configuration information of other core sets;
the SSB resource indicator corresponding to the maximum L1-RSRP or the SSB or CSI-RS resource indicator measured and/or reported by the terminal is different from the resources of the energy-saving signal/channel-associated CORESET and/or the configured reference signals in the activated TCI state configuration information of other CORESETs;
the terminal and/or the SSB or CSI-RS resource corresponding to the reported maximum L1-RSRP is different from the resources of the configured reference signals in the CORESET associated with the energy-saving signal/channel and/or the activated TCI state configuration information of other CORESETs, and the difference value of the L1-RSRP of the configured reference signals in the CORESET associated with the energy-saving signal/channel and/or the activated TCI state configuration information of other CORESETs measured by the terminal and the reported maximum L1-RSRP is greater than or equal to a certain RSRP threshold value.
2. The method of claim 1, wherein the CSI measurement and/or reporting rules are determined by at least one of the following reporting amounts or parameters:
reference signal received power, RSRP, of layer 1;
a synchronization signal block SSB resource indicator;
a CSI Reference Signal (RS) resource indicator;
state configuration information of a transmission configuration indication TCI of a control resource set CORESET;
a threshold value of RSRP.
3. The method of claim 1, further comprising:
and receiving a high-level signaling from a network side, wherein the high-level signaling is used for configuring a time domain starting position and/or a time window for the terminal to detect the PDCCH.
4. The method of claim 1, further comprising:
after configuration information or indication information of a TCI state sent by a network side is received, a short DRX period or a long DRX period is used;
alternatively, the first and second electrodes may be,
and after the detection time of the PDCCH is finished, using a short DRX period or a long DRX period.
5. A method for beam management, applied to a network device, includes:
transmitting an energy-saving signal/channel to a terminal, wherein the energy-saving signal/channel indicates that the terminal does not start a drx-onDurationTimer;
after receiving CSI report which is performed by a terminal according to CSI measurement and/or report rules within the time when a drx-onDurationTimer is not started, sending a PDCCH to the terminal;
the method further comprises the following steps:
transmitting configuration information of a TCI state or indication information of the TCI state carried by the PDSCH scheduled by the PDCCH to the terminal;
after the terminal receives the state configuration information or the indication information of the TCI, stopping sending the PDCCH;
wherein the CSI measurement and/or reporting rules include at least one of:
the content or the reported quantity of the CSI measured and/or reported by the terminal comprises LI-RSRP;
the L1-RSRP measured and/or reported by the terminal is greater than or equal to a certain RSRP threshold value;
the resources of the configured reference signals in the state configuration information of the CORESET associated with the energy-saving signal/channel and/or the activated TCI of other CORESET corresponding to the SSB resource indicator or CSI-RS resource indicator measured and/or reported by the terminal are not completely the same or different;
the SSB resource indicator corresponding to the maximum L1-RSRP or the SSB or CSI-RS resource indicator measured and/or reported by the terminal is different from the resources of the energy-saving signal/channel-associated CORESET and/or the configured reference signals in the activated TCI state configuration information of other CORESETs;
the terminal and/or the SSB or CSI-RS resource corresponding to the reported maximum L1-RSRP is different from the resources of the configured reference signals in the CORESET associated with the energy-saving signal/channel and/or the activated TCI state configuration information of other CORESETs, and the difference value of the L1-RSRP of the configured reference signals in the CORESET associated with the energy-saving signal/channel and/or the activated TCI state configuration information of other CORESETs measured by the terminal and the reported maximum L1-RSRP is greater than or equal to a certain RSRP threshold value.
6. The method of claim 5, wherein the CSI measurement and/or reporting rules are determined by at least one of the following reporting amounts or parameters:
RSRP for layer 1;
an SSB resource indicator;
a CSI-RS resource indicator;
TCI state configuration information of CORESET;
a threshold value of RSRP.
7. The method of claim 5, further comprising:
and sending a high-level signaling to the terminal, wherein the high-level signaling is used for configuring a time domain starting position and/or a time window for the terminal to detect the PDCCH.
8. A terminal, comprising:
the first detection module is used for detecting the energy-saving signal/channel; not turning on drx-onDurationTimer according to the indication of the energy saving signal/channel;
the second detection module is used for detecting the PDCCH after CSI is reported according to CSI measurement and/or reporting rules within the time that the drx-onDurationTimer is not started;
the second detection module is further configured to stop detecting the PDCCH after receiving state configuration information or indication information of a TCI carried by the PDSCH scheduled by the PDCCH;
wherein the CSI measurement and/or reporting rules include at least one of:
the content or the reported quantity of the CSI measured and/or reported by the terminal comprises LI-RSRP;
the L1-RSRP measured and/or reported by the terminal is greater than or equal to a certain RSRP threshold value;
the SSB or CSI-RS resource corresponding to the SSB resource indicator or CSI-RS resource indicator measured and/or reported by the terminal is not completely the same as or completely different from the resource of the configured reference signal in the energy saving signal/channel-associated core set and/or the activated TCI state configuration information of other core sets;
the SSB resource indicator corresponding to the maximum L1-RSRP or the SSB or CSI-RS resource indicator measured and/or reported by the terminal is different from the resources of the energy-saving signal/channel-associated CORESET and/or the configured reference signals in the activated TCI state configuration information of other CORESETs;
and the terminal and/or the SSB resource indicator corresponding to the reported maximum L1-RSRP or the SSB or CSI-RS resource corresponding to the CSI-RS resource indicator is different from resources of the CORESET associated with the energy-saving signal/channel and/or the configured reference signal in the activated TCI state configuration information of other CORESETs, and the difference value of the reported maximum L1-RSRP and the L1-RSRP of the CORESET associated with the energy-saving signal/channel measured by the terminal and/or the configured reference signal in the activated TCI state configuration information of other CORESETs is greater than or equal to a certain RSRP threshold value.
9. A network device, comprising:
a first sending module, configured to send an energy saving signal/channel to a terminal, where the energy saving signal/channel indicates that the terminal does not turn on a drx-onDurationTimer;
a second sending module, configured to send a PDCCH to the terminal after receiving a CSI report performed by the terminal according to a CSI measurement and/or reporting rule within a time when the drx-onDurationTimer is not started;
the second sending module is further configured to: transmitting configuration information of a TCI state or indication information of the TCI state carried by the PDSCH scheduled by the PDCCH to the terminal; after the terminal receives the state configuration information or the indication information of the TCI, stopping sending the PDCCH;
wherein the CSI measurement and/or reporting rules include at least one of:
the content or the reported quantity of the CSI measured and/or reported by the terminal comprises LI-RSRP;
the L1-RSRP measured and/or reported by the terminal is greater than or equal to a certain RSRP threshold value;
the SSB or CSI-RS resource corresponding to the SSB resource indicator or CSI-RS resource indicator measured and/or reported by the terminal is not completely the same as or completely different from the resource of the configured reference signal in the energy saving signal/channel-associated core set and/or the activated TCI state configuration information of other core sets;
the SSB resource indicator corresponding to the maximum L1-RSRP or the SSB or CSI-RS resource indicator measured and/or reported by the terminal is different from the resources of the energy-saving signal/channel-associated CORESET and/or the configured reference signals in the activated TCI state configuration information of other CORESETs;
the terminal and/or the SSB or CSI-RS resource corresponding to the reported maximum L1-RSRP is different from the resources of the configured reference signals in the CORESET associated with the energy-saving signal/channel and/or the activated TCI state configuration information of other CORESETs, and the difference value of the L1-RSRP of the configured reference signals in the CORESET associated with the energy-saving signal/channel and/or the activated TCI state configuration information of other CORESETs measured by the terminal and the reported maximum L1-RSRP is greater than or equal to a certain RSRP threshold value.
10. A communication device, comprising: memory, processor and program stored on the memory and executable on the processor, which when executed by the processor implements the steps in the method of beam management according to any of claims 1 to 7.
11. A computer readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method of beam management according to any one of claims 1 to 7.
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