CN111865484B - Wireless communication method, terminal equipment, network equipment and network system - Google Patents

Wireless communication method, terminal equipment, network equipment and network system Download PDF

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Publication number
CN111865484B
CN111865484B CN201910365339.4A CN201910365339A CN111865484B CN 111865484 B CN111865484 B CN 111865484B CN 201910365339 A CN201910365339 A CN 201910365339A CN 111865484 B CN111865484 B CN 111865484B
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pdcch
detection
terminal device
active time
drx
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CN111865484A (en
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薛丽霞
戴晶
刘建琴
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201910365339.4A priority Critical patent/CN111865484B/en
Priority to PCT/CN2020/087940 priority patent/WO2020221329A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038Blind format detection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity

Abstract

The application provides a wireless communication method, terminal equipment, network equipment and a network system. The method of wireless communication includes: determining a detection condition parameter corresponding to a detection opportunity of a Physical Downlink Control Channel (PDCCH) of a first type, wherein the PDCCH of the first type is used for indicating whether a terminal device performs PDCCH detection in a duration corresponding to a Discontinuous Reception (DRX) period; and determining whether the terminal equipment detects the PDCCH of the first type in the active time of the DRX cycle according to the detection condition parameters. The technical scheme provided by the application can enable the terminal equipment to more flexibly determine the detection rule of the first type PDCCH in the active time of the DRX period.

Description

Wireless communication method, terminal equipment, network equipment and network system
Technical Field
The present disclosure relates to the field of wireless communications, and more particularly, to a wireless communication method, a terminal device, a network device, and a network system.
Background
In both the long term evolution (long term evolution, LTE) system and the fifth generation access system standard New Radio (NR), a discontinuous reception (discontinuous reception, DRX) technique is introduced, which saves the power consumption of the terminal device to a certain extent.
The DRX is divided into different DRX cycles (DRX cycles) in time, with a duration (on duration) at the start position within the DRX cycle. Within the DRX duration, a duration timer counts and the terminal device performs physical downlink control channel (physical downlink control channel, PDCCH) detection. If the PDCCH detection within the DRX duration does not detect any uplink or downlink data scheduling, the terminal equipment is in a DRX dormant state except for the duration in the DRX period, and does not detect the PDCCH, so that the purpose of saving power is achieved. And if the terminal equipment detects the newly transmitted uplink or downlink data scheduling when the PDCCH is detected, starting or restarting the inactivity timer. In case of a duration timer or an inactivity timer or a retransmission timer, etc., the terminal device is in DRX active time (active time), i.e. the terminal device needs to perform PDCCH detection during the DRX active time. And under the condition that the duration timer, the inactivity timer and the retransmission timer stop counting, the terminal equipment enters a DRX dormant state and does not detect the PDCCH.
In 5G NR systems, one of the problems discussed is to reduce the power consumption of terminal devices, one of the important directions of which is wake-up signal (WUS). The detection opportunity of WUS is generally considered to be the start position before or during the DRX cycle. If the network device sends WUS and instructs the terminal device to wake up, the terminal device wakes up at the corresponding DRX duration, for example, performs PDCCH detection; if the network device does not send WUS, or sends WUS and instructs the terminal device not to wake up, the terminal device continues to sleep, skipping PDCCH detection for the DRX cycle. The WUS may carry, in addition to simple wake-up information, corresponding operation information of the terminal device after wake-up, such as partial bandwidth BWP handover, aperiodic CSI measurement reporting, etc.
The WUS reduces the probability of the terminal device waking up to detect the PDCCH on the basis of the DRX, and can achieve the purpose of further power saving. However, the terminal device is set to perform WUS detection at every detection timing of WUS, which increases the detection failure rate of the terminal device.
Disclosure of Invention
The application provides a wireless communication method, terminal equipment, network equipment and a network system, which can be used for detecting WUS more flexibly.
In a first aspect, determining a detection condition parameter corresponding to a detection opportunity of a first type of physical downlink control channel PDCCH, where the first type of PDCCH is used to indicate whether a terminal device performs PDCCH detection in a duration corresponding to a discontinuous reception DRX cycle; and determining whether the terminal equipment detects the PDCCH in the active time of the DRX period according to the detection condition parameters.
The first type of PDCCH is used for waking up the terminal device to enter the duration corresponding to the DRX cycle, so as to wake up the terminal device to start PDCCH detection or other operations to be executed within the DRX duration. The first type of PDCCH may be a PDCCH carrying or carrying WUS, or may be referred to as WUS-PDCCH. In the present specification, the detection/processing of WUS-PDCCH may also be simply referred to as WUS detection/processing.
According to the embodiment of the application, the terminal equipment can judge whether the WUS-PDCCH is detected in the active time of the DRX period according to the detection condition parameters of the WUS-PDCCH, so that the WUS-PDCCH can be detected more flexibly in the active time.
The number of PDCCH formats which are required to be detected by the terminal equipment is relatively large in the active time; WUS, which is a new PDCCH, further increases the detection burden of the terminal device. If WUS needs to be detected all the time in the active time, the blind detection times of the PDCCH may be increased, which results in exceeding the blind detection times acceptable by the terminal device at a certain detection opportunity of the PDCCH, and thus results in detection failure.
On the other hand, if the terminal device does not detect WUS all the time in the active time, for example, because the priority of WUS is lower than that of other PDCCHs, the terminal device cannot receive valid WUS in time and perform corresponding operations, which increases the PDCCH decoding delay and reduces the system efficiency.
The embodiment of the application sets the detection condition for the WUS-PDCCH, and flexibly determines whether to detect the WUS-PDCCH according to the detection condition, so that the detection of the WUS-PDCCH can be timely executed when terminal resources are allowed.
The embodiment of the application does not limit the specific mechanism of the WUS-PDCCH to wake up the terminal device. For example, the terminal device may wake up to perform PDCCH detection in two ways, one is that the terminal device wakes up when detecting WUS-PDCCH, and the terminal device wakes up to perform PDCCH detection in a duration corresponding to the DRX cycle, and the terminal device does not wake up when detecting WUS-PDCCH; another is that the WUS-PDCCH detected by the terminal device contains a certain field indicating whether the terminal device wakes up for PDCCH detection for the duration corresponding to the DRX cycle.
With reference to the first aspect, in certain implementation manners of the first aspect, determining whether the terminal device detects the PDCCH of the first type within the active time of the DRX cycle according to the detection condition parameter includes: and when the bit number of the downlink control information DCI corresponding to the first type of PDCCH detection time is smaller than or equal to a first threshold value, the terminal equipment detects the first type of PDCCH in the active time of the discontinuous reception DRX period.
According to the embodiment of the application, the terminal equipment controls the quantity of the detected PDCCHs according to the detection condition parameters, so that the quantity of the candidate PDCCHs at a certain detection time does not exceed the acceptable quantity of the terminal equipment.
For example, the number of bits of the downlink control information DCI corresponding to the PDCCH detection occasion is greater than the first threshold, which indicates that the capability of the terminal device to detect the PDCCH is very limited at this time, in which case the terminal device may not detect the WUS-PDCCH during the active time of the DRX cycle.
With reference to the first aspect, in certain implementation manners of the first aspect, determining whether the terminal device detects the PDCCH of the first type within an active time of the discontinuous reception DRX cycle according to the detection condition parameter includes: and when the bit number of Downlink Control Information (DCI) corresponding to the PDCCH detection time is smaller than or equal to a first threshold, the number of detected candidate PDCCHs corresponding to the time slot where the PDCCH detection time is positioned is smaller than or equal to a second threshold, and the number of non-overlapping control signal units (CCEs) corresponding to the time slot where the PDCCH detection time is positioned is smaller than or equal to a third threshold, the terminal equipment detects the PDCCH in the active time of the Discontinuous Reception (DRX) period.
According to the embodiment of the application, the terminal equipment controls the quantity of the detected WUS-PDCCHs according to the detection condition parameters, so that the excessive decoding delay of the PDCCHs is avoided. Specifically, when none of the above threshold conditions is met, it means that the terminal device has very limited capability to detect PDCCH at this time, in which case the terminal device may not detect WUS-PDCCH during the active time of the DRX cycle.
It should be understood that, when the number of bits of the downlink control information DCI corresponding to the PDCCH detection opportunity is greater than a first threshold, or the number of detected PDCCH candidates corresponding to the time slot in which the PDCCH detection opportunity is located is greater than a second threshold, or the number of non-overlapping control signal units CCEs corresponding to the time slot in which the PDCCH detection opportunity is located is greater than a third threshold, the terminal device does not detect the PDCCH in the active time of the DRX cycle.
With reference to the first aspect, in some implementations of the first aspect, the detection condition parameter is a number of bits or a format of DCI corresponding to a first type of PDCCH detection occasion, and if the number of bits or the format is the same as any one of the following cases, the PDCCH is detected: DCI associated with a cell radio network temporary identifier SI-RNTI or a paging radio network temporary identifier P-RNTI or a random access radio network temporary identifier RA-RNTI or a temporary cell radio network temporary identifier TC-RNTI; DCI format 1_1; DCI format 0_1; DCI format 1_0.
According to the embodiment of the application, the terminal equipment can select the WUS-PDCCH with a specific type or a specific bit number for detection and decoding. For example, DCI format 1_1, which is used for PDSCH scheduling; DCI format 0_1, which is used for PUSCH scheduling; DCI format 1_0, which is used for PDSCH scheduling and has the same number of DCI bits as DCI format 0_0 used for PUSCH scheduling. Therefore, for the specific type of WUS-PDCCH, the terminal equipment can preferentially ensure that the types of PDCCHs are detected and decoded, and the excessive decoding delay of the PDCCH is avoided.
With reference to the first aspect, in certain implementations of the first aspect, the first threshold is 4, the second threshold is 44, 36, 22, or 20, and the third threshold is 56 or 48 or 32.
According to the embodiment of the application, different judging conditions are determined according to the fact that the index values of the parameter sets of the carrier wave carrying the PDCCH of the first type are different, so that the terminal equipment can more flexibly detect the PDCCH of the first type in the active time of the DRX period.
With reference to the first aspect, in certain implementation manners of the first aspect, the method further includes: the terminal equipment detects the PDCCH at a time before a first moment and at an interval from the first moment smaller than a fourth threshold outside the active time of the DRX period; and if the PDCCH is detected, the terminal equipment executes corresponding operation according to the wake-up information, and if the PDCCH is not detected, the terminal equipment sleeps.
If the PDCCH carries information related to not waking up, the corresponding operation of the terminal device may include an operation of indicating not to wake up 1 or n DRX cycles (n is an integer greater than or equal to 2), that is, not to wake up for PDCCH detection in 1 or n DRX cycles; if the PDCCH carries wake-up related information, the corresponding operation of the terminal device may include one or more of the following indicating a corresponding operation: indicating the downlink partial bandwidth BWP and/or the uplink partial bandwidth BWP after the wake-up (the terminal device switches to the indicated downlink BWP or uplink BWP after the wake-up), indicating the aperiodic CSI measurement report (the terminal device performs the aperiodic CSI measurement report after the wake-up), indicating the activated search space set (the terminal device activates the corresponding search space set after the wake-up), and indicating the carrier combination needed for PDCCH detection (the terminal device performs PDCCH detection on the corresponding carrier combination after the wake-up). It should be understood that the terminal device may detect the PDCCH only at the corresponding timing of the first time, may not detect the PDCCH at other times except for the active time of the DRX cycle, and may sleep.
According to the embodiment of the application, the PDCCH is detected at the moment corresponding to the first moment only outside the active time of the DRX period by the terminal equipment, and the rest time is in the dormant state, so that the purpose of saving energy consumption is achieved.
With reference to the first aspect, in certain implementation manners of the first aspect, the method further includes: the terminal equipment obtains offset time information in a protocol predefined mode or in a mode of receiving a radio resource control message from the network equipment; the first moment is determined according to the offset time information and the DRX duration.
With reference to the first aspect, in certain implementation manners of the first aspect, before detecting the PDCCH, the method further includes: and determining that the detection period of the PDCCH is not equal to the DRX period.
It should be appreciated that the detection period and DRX period of the PDCCH are independently configured and may not be equal.
According to the wireless communication method, when the detection period of the first type of PDCCH is unequal to the DRX period, the terminal equipment can determine the first moment according to the offset time information and the corresponding DRX duration, and can detect the PDCCH at the moment corresponding to the first moment, so that the purpose of flexibly applying the PDCCH is achieved.
It should be appreciated that the offset time information may be configured by the network device or may be predefined by the protocol.
With reference to the first aspect, in certain implementation manners of the first aspect, the method further includes: if the terminal equipment detects the PDCCH in the active time of the DRX period and the PDCCH contains a non-wake-up indication outside the corresponding active time, the terminal equipment only detects the PDCCH on the main carrier and does not detect the PDCCH on the auxiliary carrier.
With reference to the first aspect, in certain implementation manners of the first aspect, the method further includes: and if the terminal equipment detects the PDCCH in the active time of the DRX period and the PDCCH contains a non-wake-up indication outside the corresponding active time, the terminal equipment deactivates a first search space set (SS set) group, wherein the first SS set group is not associated with the PDCCH. The meaning of not associating here is that the first SS set group does not include SS sets configured to detect the PDCCH.
With reference to the first aspect, in certain implementation manners of the first aspect, the method further includes: if the terminal equipment detects the PDCCH in the active time of the DRX period and the PDCCH contains a non-wake-up indication outside the corresponding active time, the terminal equipment detects the skip duration in one PDCCH detection skip duration in more than one PDCCH detection skip duration according to the non-wake-up indication, and skips PDCCH detection.
According to the wireless communication method, the terminal equipment detects the PDCCH in the active time of the DRX period, the PDCCH contains the non-wake-up indication outside the corresponding active time, and the terminal equipment can acquire the corresponding operation indication according to the network equipment configuration or the protocol predefining mode, so that the resource waste caused by extra signaling overhead can be avoided.
With reference to the first aspect, in certain implementation manners of the first aspect, the method further includes: and if the terminal equipment detects the PDCCH in the active time of the DRX period and the PDCCH contains a wake-up instruction triggering the terminal equipment to measure the non-periodic Channel State Information (CSI), the terminal equipment does not measure the CSI and/or does not send a CSI report.
According to the wireless communication method, the terminal equipment detects the PDCCH in the active time of the DRX period, the PDCCH contains the wake-up indication outside the corresponding active time, and the terminal equipment can acquire the corresponding operation indication according to the network equipment configuration or the protocol predefining mode, so that the resource waste caused by extra signaling overhead can be avoided.
In a second aspect, there is provided a method of wireless communication, comprising: the network equipment sends a radio resource control message to the terminal equipment, wherein the radio resource control message comprises a detection period and a DRX period of a first type of PDCCH, and the first type of PDCCH is used for indicating whether the terminal equipment performs PDCCH detection in a duration corresponding to the discontinuous reception DRX period; the detection period and the DRX period of the PDCCH of the first type are configured by different parameters in a radio resource control message.
According to the implementation of the application, the network equipment adopts different parameters to configure the detection period and the DRX period of the PDCCH of the first type, so that the two can be used more flexibly.
With reference to the second aspect, in certain implementations of the second aspect, the radio resource control message further includes: and the first type indication information is used for indicating the terminal equipment to detect the PDCCH in the active time of the Discontinuous Reception (DRX) period, and when the PDCCH contains a non-wake-up indication outside the corresponding active time, the terminal equipment only detects the PDCCH on the main carrier and does not detect the PDCCH on the auxiliary carrier.
With reference to the second aspect, in certain implementations of the second aspect, the radio resource control message further includes: and the first type indication information is used for indicating the terminal equipment to detect the PDCCH in the active time of the DRX period, and when the PDCCH contains a non-wake-up indication outside the corresponding active time, the terminal equipment deactivates a first search space set (SS set) group, wherein the first SS set group is not associated with the PDCCH.
With reference to the second aspect, in certain implementations of the second aspect, the radio resource control message further includes: and the terminal equipment detects the skip duration in one PDCCH detection skip duration in more than one PDCCH detection skip duration according to the non-wake-up indication when the first type indication information is used for indicating the terminal equipment to detect the PDCCH in the active time of the DRX period and the PDCCH contains the non-wake-up indication outside the corresponding active time.
According to the embodiment of the application, the terminal equipment detects the PDCCH in the active time of the DRX period, the PDCCH contains the non-wake-up indication outside the corresponding active time, and the terminal equipment can acquire the corresponding operation indication according to the network equipment configuration or the predefined mode of the protocol, so that the resource waste caused by extra signaling overhead can be avoided.
With reference to the second aspect, in certain implementations of the second aspect, the radio resource control message further includes: the first type indication information is used for indicating the terminal equipment to detect the PDCCH in the active time of the DRX period, and when the PDCCH contains wake-up indication triggering the terminal equipment to do aperiodic Channel State Information (CSI) measurement, the terminal equipment does not measure the CSI and/or does not send a CSI report.
According to the embodiment of the application, the terminal equipment detects the PDCCH in the active time of the DRX period, the PDCCH contains the wake-up indication outside the corresponding active time, and the terminal equipment can acquire the corresponding operation indication according to the network equipment configuration or the predefined mode of the protocol, so that the resource waste caused by extra signaling overhead can be avoided.
In a third aspect, there is provided a terminal device comprising: and the processing unit is used for determining detection condition parameters corresponding to detection occasions of the first type of PDCCH, wherein the first type of PDCCH is used for indicating whether the terminal equipment detects the PDCCH in the duration corresponding to the Discontinuous Reception (DRX) period and determining whether the terminal equipment detects the first type of PDCCH in the active time of the DRX period according to the detection condition parameters. The method comprises the steps of carrying out a first treatment on the surface of the And the detection unit is used for detecting the PDCCH according to the result of the processing unit.
With reference to the third aspect, in some implementations of the third aspect, determining, according to the detection condition parameter, whether the terminal device detects the PDCCH during an active time of a discontinuous reception DRX cycle includes: and when the bit number of Downlink Control Information (DCI) corresponding to the PDCCH detection time is smaller than or equal to a first threshold value, the detection unit detects the PDCCH in the active time of the Discontinuous Reception (DRX) period.
With reference to the third aspect, in some implementations of the third aspect, determining, according to the detection condition parameter, whether the terminal device detects the PDCCH during an active time of a discontinuous reception DRX cycle includes: and when the bit number of downlink control information DCI corresponding to the PDCCH detection time is smaller than or equal to a first threshold, the number of detected candidate PDCCHs corresponding to the time slot where the PDCCH detection time is located is smaller than or equal to a second threshold, and the number of non-overlapping control signal units CCEs corresponding to the time slot where the PDCCH detection time is located is smaller than or equal to a third threshold, the detection unit detects the PDCCH in the active time of the discontinuous reception DRX period.
With reference to the third aspect, in certain implementations of the third aspect, the first threshold is 4, the second threshold is 44, 36, 22, or 20, and the third threshold is 56 or 48 or 32.
With reference to the third aspect, in some implementations of the third aspect, the detection condition parameter is a number of bits or a format of downlink control information DCI corresponding to the PDCCH detection opportunity, and if the number of bits or the format is the same as any one of the following cases, the PDCCH is detected: DCI associated with a cell radio network temporary identifier SI-RNTI or a paging radio network temporary identifier P-RNTI or a random access radio network temporary identifier RA-RNTI or a temporary cell radio network temporary identifier TC-RNTI; DCI format 1_1; DCI format 0_1; DCI format 1_0.
With reference to the third aspect, in certain implementations of the third aspect, the detecting unit detects the PDCCH outside an active time of a DRX cycle, at a timing before a first time and spaced from the first time by less than a fourth threshold; and if the PDCCH is detected, the terminal equipment executes corresponding operation according to the wake-up information, and if the PDCCH is not detected, the terminal equipment sleeps.
With reference to the third aspect, in certain implementations of the third aspect, the terminal device further includes: a receiving unit configured to receive offset time information from a network device; the first moment is determined according to the offset time information and the DRX duration.
With reference to the third aspect, in some implementations of the third aspect, before detecting the PDCCH, it is determined that a detection period of the PDCCH is not equal to a DRX period.
With reference to the third aspect, in some implementations of the third aspect, if the detecting unit detects the PDCCH during an active time of the DRX cycle and the PDCCH includes a no-wake indication outside a corresponding active time, the detecting unit detects the PDCCH only on the primary carrier and not on the secondary carrier.
With reference to the third aspect, in some implementations of the third aspect, if the detecting unit detects the PDCCH during an active time of the DRX cycle and the PDCCH includes a no-wake indication outside of the corresponding active time, the processing unit deactivates a first set of SS sets, where the first set of SS sets is not associated with the PDCCH. The meaning of not associating here is that the first SS set group does not include SS sets configured to detect the PDCCH.
With reference to the third aspect, in some implementations of the third aspect, if the detecting unit detects the PDCCH during an active time of the DRX cycle and the PDCCH includes a no-wake indication outside a corresponding active time, the detecting unit detects a skip duration in one PDCCH detection skip duration among more than one PDCCH detection skip duration according to the no-wake indication, and skips PDCCH detection.
With reference to the third aspect, in some implementations of the third aspect, if the detecting unit detects the PDCCH during an active time of the DRX cycle and the PDCCH includes a wake-up indication that triggers the terminal device to make aperiodic channel state information CSI measurement, the processing unit does not measure CSI and/or does not send CSI reports.
A fourth aspect provides a network device, including a transmitting unit configured to transmit a radio resource control message to a terminal device; the radio resource control message comprises a detection period and a DRX period of a first type of PDCCH, wherein the first type of PDCCH is used for indicating whether the terminal equipment performs PDCCH detection in a duration corresponding to the discontinuous reception DRX period; the detection period and the DRX period of the PDCCH of the first type are independently configured by different parameters in a radio resource control message.
With reference to the fourth aspect, in certain implementations of the fourth aspect, the radio resource control message further includes: and the first type indication information is used for indicating the terminal equipment to detect the PDCCH in the active time of the Discontinuous Reception (DRX) period, and when the PDCCH contains a non-wake-up indication outside the corresponding active time, the terminal equipment only detects the PDCCH on the main carrier and does not detect the PDCCH on the auxiliary carrier.
With reference to the fourth aspect, in certain implementations of the fourth aspect, the radio resource control message further includes: and the first type indication information is used for indicating the terminal equipment to detect the PDCCH in the active time of the DRX period, and the terminal equipment deactivates a first search space set SS set group when the PDCCH contains a non-wake-up indication outside the corresponding active time, wherein the first SS set group is not associated with the PDCCH.
With reference to the fourth aspect, in certain implementations of the fourth aspect, the radio resource control message further includes: and the terminal equipment detects the skip duration in one PDCCH detection skip duration in more than one PDCCH detection skip duration according to the non-wake-up indication when the first type indication information is used for indicating the terminal equipment to detect the PDCCH in the active time of the DRX period and the PDCCH contains the non-wake-up indication outside the corresponding active time.
With reference to the fourth aspect, in certain implementations of the fourth aspect, the radio resource control message further includes: the first type indication information is used for indicating the terminal equipment to detect the PDCCH in the active time of the DRX period, and when the PDCCH contains wake-up indication triggering the terminal equipment to do aperiodic Channel State Information (CSI) measurement, the terminal equipment does not measure the CSI and/or does not send a CSI report.
In a fifth aspect, a network system is provided, the network system including the terminal device and a network device, the terminal device may be any one of the terminal devices in the third aspect, and the network device may be any one of the network devices in the fourth aspect.
In a sixth aspect, a method of wireless communication is provided, the method comprising: the method comprises the steps that a terminal device detects a first type of PDCCH at a time before a first moment and at an interval from the first moment smaller than a fourth threshold value outside an active time of a DRX period; and if the PDCCH is detected, the terminal equipment executes corresponding operation according to the wake-up information, and if the PDCCH is not detected, the terminal equipment sleeps.
It should be understood that the terminal device may detect the PDCCH only at the corresponding timing of the first time, may not detect the PDCCH at other times except for the active time of the DRX cycle, and may sleep.
According to the wireless communication method, the PDCCH is detected at the moment corresponding to the first moment except the active time of the DRX period by the terminal equipment, and the rest time is in the dormant state, so that the purpose of saving energy consumption is achieved.
With reference to the sixth aspect, in certain implementations of the sixth aspect, the method further includes: the terminal equipment obtains offset time information in a protocol predefined mode or in a mode of receiving a radio resource control message from the network equipment; the first moment is determined according to the offset time information and the DRX duration.
With reference to the sixth aspect, in certain implementations of the sixth aspect, before detecting the PDCCH, the method further includes: and determining that the detection period of the PDCCH is not equal to the DRX period.
It should be understood that the detection period and the DRX period of the PDCCH are configured independently, and may not be equal, and the periods of the two may not be equal.
It should be appreciated that the offset time information may be configured by the network device or may be predefined by the protocol.
With reference to the sixth aspect, in certain implementations of the sixth aspect, the method further includes: if the terminal equipment detects the PDCCH in the active time of the DRX period and the PDCCH contains a non-wake-up indication outside the corresponding active time, the terminal equipment only detects the PDCCH on the main carrier and does not detect the PDCCH on the auxiliary carrier.
With reference to the sixth aspect, in certain implementations of the sixth aspect, the method further includes: and if the terminal equipment detects the PDCCH in the active time of the DRX period and the PDCCH contains a non-wake-up indication outside the corresponding active time, the terminal equipment deactivates a first search space set (SS set) group, wherein the first SS set group is not associated with the PDCCH.
With reference to the sixth aspect, in certain implementations of the sixth aspect, the method further includes: if the terminal equipment detects the PDCCH in the active time of the DRX period and the PDCCH contains a non-wake-up indication outside the corresponding active time, the terminal equipment detects the skip duration in one PDCCH detection skip duration in more than one PDCCH detection skip duration according to the non-wake-up indication, and skips PDCCH detection.
With reference to the sixth aspect, in certain implementations of the sixth aspect, the method further includes: and if the terminal equipment detects the PDCCH in the active time of the DRX period and the PDCCH contains a wake-up instruction triggering the terminal equipment to measure the non-periodic Channel State Information (CSI), the terminal equipment does not measure the CSI and/or does not send a CSI report.
It will be appreciated that the method provided in the sixth aspect may be used independently and need not rely on the method provided in the first aspect.
In a seventh aspect, a terminal device is provided, which may perform the method of the sixth aspect or any implementation manner thereof.
In an eighth aspect, there is provided a method of wireless communication, the method comprising: if the terminal equipment detects a first type of PDCCH in the active time of the DRX period and the PDCCH contains an operation instruction outside the corresponding active time, the terminal equipment operates according to the instruction information corresponding to the operation instruction in the active time, wherein the instruction information can be obtained by the network equipment in a configuration or protocol predefined mode.
With reference to the eighth aspect, in some implementations of the eighth aspect, the operation indication is a no-wake indication, and the terminal device detects the PDCCH only on the primary carrier and not on the secondary carrier.
With reference to the eighth aspect, in certain implementations of the eighth aspect, the operation indication is a not-wake-up indication, the terminal device deactivates a first set of SS sets, where the first set of SS sets is not associated with the PDCCH.
With reference to the eighth aspect, in certain implementations of the eighth aspect, the operation indication is a no-wake indication, and the terminal device skips PDCCH detection according to the no-wake indication when one of the more than one PDCCH detection skip durations is detected.
With reference to the eighth aspect, in some implementations of the eighth aspect, the operation indication is a wake-up indication that triggers the terminal device to make aperiodic CSI measurement, and the terminal device does not measure CSI and/or does not send CSI reports.
It will be appreciated that the method provided in the eighth aspect may be used independently and need not rely on the method provided in the first aspect.
In a ninth aspect, there is provided a method of wireless communication, the method comprising: the network equipment sends a radio resource control message to the terminal equipment, wherein the radio resource control message comprises first type indication information, the first type indication information is used for indicating the terminal equipment to detect the PDCCH in the active time of the discontinuous reception DRX cycle, and when the PDCCH contains operation indication outside the corresponding active time, the terminal equipment operates according to the first type indication information.
With reference to the ninth aspect, in some implementations of the ninth aspect, the operation indication is a no-wake indication, and the terminal device detects the PDCCH only on the primary carrier and not on the secondary carrier.
With reference to the ninth aspect, in some implementations of the ninth aspect, the operation indication is a not wake-up indication, the terminal device deactivates a first set of SS sets of search spaces, where the first set of SS sets is not associated with the PDCCH.
With reference to the ninth aspect, in some implementations of the ninth aspect, the operation indication is a no-wake indication, and the terminal device skips PDCCH detection according to the no-wake indication when one of the more than one PDCCH detection skip durations is detected.
With reference to the ninth aspect, in some implementations of the ninth aspect, the operation indication is a wake-up indication that triggers the terminal device to make aperiodic CSI measurement, and the terminal device does not measure CSI and/or does not send CSI reports.
It will be appreciated that the method provided in the eighth aspect may be used independently and need not rely on the method provided in the first aspect.
In a tenth aspect, a terminal device is provided, which may perform the method of the eighth aspect or any implementation manner thereof.
In an eleventh aspect, there is provided a network device that may perform the method of the ninth aspect or any implementation thereof.
In a twelfth aspect, there is provided a computer readable storage medium having instructions stored therein which, when run on a computer, cause the computer to perform the method of the above aspects.
In a thirteenth aspect, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the method of the above aspects.
In a fourteenth aspect, a chip device is provided, which in operation may perform the method of the above aspects.
Drawings
Fig. 1 is a schematic architecture diagram of a communication system suitable for use in embodiments of the present application.
Fig. 2 is a schematic diagram of a method of wireless communication according to an embodiment of the present application.
Fig. 3 is a schematic interaction diagram of another method of wireless communication provided by an embodiment of the present application.
Fig. 4 is a schematic diagram of different bit blocks carried by a PDCCH of a first type according to an embodiment of the present application.
Fig. 5 is a schematic diagram of applying offset time information according to an embodiment of the present application.
Fig. 6 is a schematic diagram of another application offset time information according to an embodiment of the present application.
Fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
Fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present application.
Fig. 9 is a schematic diagram of a terminal device provided in an embodiment of the present application.
Fig. 10 is a schematic diagram of a network device according to an embodiment of the present application.
Detailed Description
The technical solutions in the present application will be described below with reference to the accompanying drawings.
The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) systems, general packet Radio service (General Packet Radio Service, GPRS), LTE systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) communication systems, future fifth generation (5th Generation,5G) systems or New Radio (NR), etc.
Fig. 1 is a schematic architecture diagram of a mobile communication system suitable for use in embodiments of the present application.
As shown in fig. 1, the mobile communication system 100 may include a network device 101 and at least one terminal device 102. Fig. 1 is only a schematic diagram, and other network devices may be further included in the communication system, for example, a wireless relay device and a wireless backhaul device may also be included, which are not shown in fig. 1. The embodiments of the present application do not limit the number and specific types of network devices and terminal devices included in the mobile communication system.
The terminal device 102 in the embodiments of the present application may refer to a user device, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation orotocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a car-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolving public land mobile network (public land mobile network, PLMN), etc., as the embodiments of the application are not limited in this respect.
The network device 101 in this embodiment of the present application may be a device for communicating with a terminal device, where the network device may be a network device (base transceiver station, BTS) in a global system for mobile communications (global system of mobile communication, GSM) or code division multiple access (code division multiple access, CDMA), may also be a network device (NodeB, NB) in a wideband code division multiple access (wideband code division multiple access, WCDMA) system, may also be an evolved network device (eNB or eNodeB) in an LTE system, may also be a wireless controller in a cloud wireless access network (cloud radio access network, CRAN) scenario, or the network device may be a relay station, an access point, a vehicle device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, etc.
The PDCCH carries downlink control information (downlink control information, DCI) including resource allocation and other control information on one or more terminal devices.
The search space (search space) is the set of candidates PDCCH (PDCCH candidate) under a certain aggregation level (aggregation level, AL). Since the aggregation level of the PDCCH actually transmitted by the network device is variable with time, and since no related signaling is notified to the terminal device, the terminal device needs to blindly test the PDCCH under different aggregation levels, where the PDCCH to be blindly tested is called a PDCCH candidate, and a certain aggregation level may have multiple PDCCH candidates. The terminal device decodes all candidate PDCCHs consisting of control-channel elements (CCEs) in the search space, considers the content of the decoded PDCCHs valid for the terminal device if cyclic redundancy check (cyclic redundancy check, CRC) passes, and processes the decoded related information.
In NR, to better control the complexity of blind detection of the downlink control channel, the network device may configure the terminal device with one or more search space sets (SS sets), where each search space set includes one or more aggregation level search spaces. I.e., the search space set includes one or more aggregation levels, and a number of candidate PDCCHs corresponding to each aggregation level.
In the time domain, the terminal device detects the candidate PDCCH in the search space set at a certain time interval, so some time domain configuration information is configured for each search space set, including:
detection period: detecting a time interval of the search space set, wherein the unit is a slot;
detecting the time: the timing of detecting the PDCCH in the detection period;
number of slots: the number of time slots of the search space set is continuously detected, and the number of time slots is smaller than the value of the detection period.
WUS has now been determined to be designed based on PDCCH (also called WUS-PDCCH), i.e. WUS is an added type of PDCCH and thus can carry more information through DCI. The WUS carries wake-up information, which in the prior art, besides a simple operation of whether to wake up, may indicate the following operation related to not wake up:
Alternatively, it may be indicated that n DRX cycles are not to be woken up, n being an integer of 2 or more.
Alternatively, WUS may also indicate one or more of the following wake-up related information:
optionally, a post-wake downlink partial Bandwidth (BWP) and/or an uplink BWP may be indicated.
Optionally, aperiodic channel state information (channel state information, CSI) measurement reporting (including time-frequency resources indicating aperiodic channel state information reference signals (CSI reference signal, CSI-RS) and uplink time-frequency resources reporting CSI reports) may be indicated.
Alternatively, activation of SS set combinations may be indicated.
Alternatively, a carrier combination that requires PDCCH detection may be indicated.
Alternatively, WUS may be transmitted to one terminal device or to a group of terminal devices consisting of a plurality of terminal devices.
If the terminal device is set to always perform WUS detection, for example, WUS detection is performed both during and outside the active time, the detection failure rate of the terminal device increases. In particular, WUS detection is performed both during and outside the active time, so that WUS, in addition to the role that can be played during the active time to indicate whether the terminal device wakes up, may also be used during the active time to indicate the corresponding operation of the terminal device. Since the PDCCH format that the terminal device itself needs to detect is already relatively large in the active time. WUS is a new PDCCH, which may increase the number of blind detections of the PDCCH, resulting in exceeding the number of blind detections acceptable to the terminal device at a certain detection occasion of the PDCCH.
Fig. 2 is a schematic flow chart of a method of wireless communication. The method of fig. 2 may be performed by the terminal device 102 of fig. 1.
S201, the terminal equipment determines detection condition parameters corresponding to detection opportunities of a first type of PDCCH, wherein the first type of PDCCH is used for waking up the terminal equipment to enter a duration corresponding to a DRX period.
The first type of PDCCH is used for waking up the terminal device to enter the duration corresponding to the DRX cycle, so as to wake up the terminal device to start PDCCH detection or other operations to be executed within the DRX duration. The first type of PDCCH may be a PDCCH carrying or carrying WUS, or may be referred to as WUS-PDCCH. In the present specification, the detection/processing of WUS-PDCCH may also be simply referred to as WUS detection/processing.
Optionally, the terminal device may wake up in two ways to detect the first type of PDCCH, and wake up the terminal device in two ways to detect the PDCCH, where one is that the terminal device wakes up when detecting the WUS-PDCCH, and the terminal device wakes up for the duration corresponding to the DRX cycle to detect the PDCCH, and the terminal device does not wake up when detecting the WUS-PDCCH; another is that the WUS-PDCCH detected by the terminal device contains a certain field indicating whether the terminal device wakes up for PDCCH detection for the duration corresponding to the DRX cycle.
S202, the terminal equipment determines whether the terminal equipment detects the PDCCH of the first type in the active time of the DRX period according to the detection condition parameters.
According to the embodiment of the application, the terminal equipment can judge whether the WUS-PDCCH is detected in the active time of the DRX period according to the detection condition parameters of the WUS-PDCCH, so that the WUS-PDCCH can be detected more flexibly in the active time.
For example, the terminal device determines whether to detect the first type of PDCCH through a detection period, a detection timing, a detection time-frequency resource of the first type of PDCCH configured by the network device, a bit size of DCI carried by the first type of PDCCH, and detection condition parameters such as DRX configuration.
Alternatively, the detection condition parameter may be associated with a detection occasion of the first type of PDCCH and/or an information-carrying format and a resource occupancy of the first type of PDCCH.
For example, the detection condition parameter may be the number of bits corresponding to the PDCCH detection time, the number of detected PDCCH candidates corresponding to the time slot in which the PDCCH detection opportunity is located, or the number of non-overlapping control-channel element (CCE) corresponding to the time slot in which the PDCCH detection opportunity is located.
In one embodiment, the detection condition parameter is the number of bits of DCI corresponding to the first type of PDCCH detection occasion. For example, when the number of bits of DCI corresponding to the first type of PDCCH detection occasion is less than or equal to a first threshold, the terminal device detects the PDCCH in an active time of a discontinuous reception DRX cycle.
It is understood that when the number of bits of DCI corresponding to the first type of PDCCH detection occasion is greater than the first threshold, the terminal device does not detect the PDCCH during the active time of the discontinuous reception DRX cycle.
Or, for example, when the number of bits of downlink control information DCI corresponding to the WUS-PDCCH detection opportunity is less than or equal to a first threshold, and the number of detected candidate WUS-PDCCHs corresponding to the time slot where the first type PDCCH detection opportunity is located is less than or equal to a second threshold, and the number of non-overlapping CCEs corresponding to the time slot where the WUS-PDCCH detection opportunity is located is less than or equal to a third threshold, the terminal device detects the WUS-PDCCH in the active time of the DRX cycle.
It should be understood that, when the number of bits of the downlink control information DCI corresponding to the WUS-PDCCH detection opportunity is greater than a first threshold, or the number of detected candidate PDCCHs corresponding to the time slot in which the WUS-PDCCH detection opportunity is located is greater than a second threshold, or the number of non-overlapping CCEs corresponding to the time slot in which the WUS-PDCCH detection opportunity is located is less than or equal to a third threshold, the terminal device does not detect the WUS-PDCCH in the active time of the discontinuous reception DRX cycle.
The DCI corresponding to the detection timing of the WUS-PDCCH may be DCI carried by the WUS-PDCCH.
The candidate PDCCH is a PDCCH to be blindly detected, including a WUS-PDCCH or other types of PDCCHs. If the PDCCH detection opportunity corresponds to the time slot in which the PDCCH is not transmitted, the terminal device needs to complete detection of all the candidate PDCCHs.
For two CCEs of different PDCCH candidates, the non-overlapping definition is: the CCEs correspond to different CORESET indexes, or the PDCCH start symbols of the reception candidates corresponding to the CCEs are different.
Alternatively, the second threshold may be determined from the values in table 1.
TABLE 1
Where μ is a parameter set (numerology) index of the carrier transmitting the PDCCH, and the subcarrier intervals of μ=0, 1,2,3 corresponding to the carrier transmitting the PDCCH are 15khz,30khz,60khz,120khz, respectively.
Is the maximum number of PDCCH candidates detected per slot for one downlink BWP of a single carrier when μ takes different values.
Alternatively, the third threshold may be determined from the values in table 2.
TABLE 2
Where μ is a parameter set (numerology) index of the carrier transmitting the PDCCH, and the subcarrier intervals of μ=0, 1,2,3 corresponding to the carrier transmitting the PDCCH are 15khz,30khz,60khz,120khz, respectively.
Is the maximum number of non-overlapping CCEs per slot for one downlink BWP of a single carrier, taking different values.
Wherein for two CCEs (control channel element ) of different PDCCH candidates, the non-overlapping definition is: the CCEs correspond to different CORESET indexes, or the PDCCH start symbols of the reception candidates corresponding to the CCEs are different.
Alternatively, the first threshold may be 4, the second threshold may be 44, 36, 22 or 20, and the third threshold may be 56 or 48 or 32. For example, three thresholds may be set in the manner of tables 1-2 above.
Optionally, the detection condition parameter may be a DCI format corresponding to a PDCCH detection timing, and if the DCI format is the same as any one of the following formats, the PDCCH is detected:
a DCI associated with a cell radio network temporary identity (system information radio network temporary identity, SI-RNTI) or paging radio network temporary identity (paging radio network temporary identity, P-RNTI) or random access radio network temporary identity (random access radio network temporary identity, RA-RNTI) or temporary cell radio network temporary identity (temporary cell radio network temporary identity, TC-RNTI);
DCI format 1_1, which is used for PDSCH scheduling;
DCI format 0_1, which is used for PUSCH scheduling;
DCI format 1_0, which is used for PDSCH scheduling and has the same number of DCI bits as DCI format 0_0 used for PUSCH scheduling.
Optionally, the detection condition parameter may be a number of bits of DCI corresponding to a PDCCH detection timing, and if the number of bits is the same as any one of the following, detecting the PDCCH:
DCI associated with SI-RNTI or P-RNTI or RA-RNTI or TC-RNTI;
DCI format 1_1;
DCI format 0_1;
DCI format 1_0.
S203 is an optional step, which may be performed, for example, when WUS-PDCCH is detected. In S203, the terminal device may perform a related operation according to indication information carried by WUS-PDCCH detected during an active time of the DRX cycle.
Optionally, if the terminal device detects the PDCCH of the first type in the active time of the DRX cycle and the PDCCH of the first type includes a no-wake indication outside the corresponding active time, the terminal device detects the PDCCH only on the primary carrier and does not detect the PDCCH on the secondary carrier.
Optionally, if the terminal device detects the PDCCH of the first type in the active time of the DRX cycle, and the PDCCH of the first type includes a no-wake indication outside the corresponding active time, the terminal device deactivates the first set of SS sets, where the first set of SS sets is not associated with the PDCCH. The meaning of not associating here is that the first SS set group does not include SS sets configured to detect the PDCCH.
Optionally, if the terminal device detects the first type of PDCCH in the active time of the DRX cycle and the first type of PDCCH includes a no-wake indication outside the corresponding active time, the terminal device detects a skip duration in one PDCCH in more than one PDCCH detection skip duration according to the no-wake indication, and skips PDCCH detection.
Optionally, the operation of the terminal device on the PDCCH of the first type including the no-wake-up indication outside the corresponding active time may be carried by an RRC message sent by the network device or may be predefined by a protocol.
Optionally, if the terminal device detects the PDCCH of the first type in the active time of the DRX cycle, and the PDCCH of the first type includes a wake-up indication that triggers the terminal device to make aperiodic CSI measurement, the terminal device does not measure CSI and/or does not send CSI reports.
Alternatively, the above-mentioned behavior of the terminal device may be predefined by a protocol, or may be obtained by a radio resource control message sent by the network device.
Fig. 3 is a schematic interaction diagram of a wireless communication method. The method of fig. 3 may be performed by the network device 101 and the terminal device 102 of fig. 1.
S301, the network device may send a radio resource control (radio resource control, RRC) message to the terminal device, where the RRC message may carry one or more of the following information:
The method comprises the steps of detecting relevant parameters such as a detection period, detection time and detection time-frequency resource of a first type PDCCH; or alternatively
DRX related configuration parameters such as DRX period, DRX duration, etc.
Optionally, the detection period and the DRX period of the PDCCH of the first type are configured by different parameters in the radio resource control message.
Alternatively, one or more carriers may be transmitted. If the number of the transmitted carriers is greater than one, one of the carriers is a primary carrier, and the rest carriers are secondary carriers.
Alternatively, one or more downlink BWP and/or uplink BWP may be configured for each carrier.
Alternatively, one or more SS sets that can be activated/deactivated may be configured for each downlink BWP, to form a semi-persistent SS set combination, where SS sets associated with WUS are not included in the semi-persistent SS set combination.
The SS set can determine the detection period and detection timing of the corresponding PDCCH, so as to better control the complexity of the candidate PDCCH.
Optionally, the PDCCH detection is skipped during one of the more than one PDCCH detection skip durations.
Aperiodic CSI-triggered state list and uplink channel resources dedicated to feedback WUS-triggered aperiodic CSI reports.
Each trigger state in the CSI trigger state list is associated with a CSI report type, CSI-RS resources (which may include CSI-RS for channel measurement and/or interference measurement), and so on.
Optionally, the uplink channel resource, the time domain position is between WUS detection opportunity and corresponding DRX duration.
Optionally, the uplink channel resource may be PUSCH or PUCCH, where the PUCCH format may be PUCCH format 2, PUCCH format 3 or PUCCH format 4.
S302, the terminal equipment confirms the configuration information.
The first type of PDCCH is used for waking up the terminal device to enter the duration corresponding to the DRX cycle, so as to wake up the terminal device to start PDCCH detection or other operations to be executed within the DRX duration. The first type of PDCCH may be a PDCCH carrying or carrying WUS, or may be referred to as WUS-PDCCH. In the present specification, the detection/processing of WUS-PDCCH may also be simply referred to as WUS detection/processing.
Since the configuration information of the WUS-PDCCH and the configuration information of the DRX cycle may be configured by different parameters in the radio resource control message, the detection cycle of the WUS-PDCCH may or may not be equal to the DRX cycle.
Wherein, by associating an SS set and a control resource set (control resource set, CORESET) with the DCI format corresponding to the configured WUS-PDCCH, the SS set determines the detection period and the detection time of the WUS-PDCCH, and the CORESET determines the detection time-frequency resource of the WUS-PDCCH.
For example, the DRX cycle may be an integer multiple of the first type of PDCCH detection cycle, or the first type of PDCCH detection cycle may be an integer multiple of the DRX cycle.
Alternatively, the WUS-PDCCH may be addressed to a group of multiple terminal devices or to one terminal device.
The network device uses the RRC message, where the RRC message may carry relevant parameters such as the DRX cycle and the detection cycle of the first type of PDCCH. The terminal device can confirm different configuration information according to different RRC messages, for example, the network device can configure different PDCCH detection periods of the first type according to the need, so that the first type PDCCH can be used more flexibly.
Fig. 4 is a schematic diagram of different bit blocks in DCI carried by WUS-PDCCH transmitted by a network device to a set of multiple terminal devices.
As shown in fig. 4, for different bit blocks in DCI carried by WUS-PDCCH sent to a set of multiple terminal devices, the bit block position and bit number of the bit block corresponding to the terminal device in DCI carried by WUS-PDCCH need to be configured, so that each terminal device in the set of multiple terminal devices can read DCI carried by its corresponding WUS-PDCCH in all DCI carried by WUS-PDCCH.
The index meaning list of the DCI carried by the WUS-PDCCH may be used to indicate that the terminal device may wake up or not wake up when detecting the WUS-PDCCH in the sleep state. In the list, the one or more index values correspond to the relevant behavior of the one or more configuration parameters configured in step S101.
For example, for an index with a number of bits of 2, there may be a DCI index meaning list carried by WUS-PDCCH of table one below.
Table 3 gives some exemplary possibilities, but the index values and the operations performed by the corresponding terminal devices are not limited.
TABLE 3 Table 3
Optionally, a DCI index meaning list carried by the WUS-PDCCH during the active time may also be configured (hereinafter, simply referred to as table 3 and table 4, respectively, where table 3 corresponds to the content interpretation of DCI carried by the WUS-PDCCH detected by the terminal device in the dormant state, and table 4 corresponds to the content interpretation of DCI carried by the WUS-PDCCH detected by the terminal device during the active time).
For example, for an index with a number of bits of 2, there may be a DCI index meaning list carried by WUS-PDCCH of table 4 below:
TABLE 4 Table 4
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Table 4 gives some exemplary possibilities, but the index values and the operations performed by the corresponding terminal devices are not limited.
For example, table 3 may be configurable and table 4 may not be configurable for one or more of the following:
not waking up 1 DRX cycle;
not waking up n DRX cycles (n is an integer of 2 or more);
triggering aperiodic CSI-RS measurements.
This is because, at active time, there may be a lack of uplink channel resources dedicated to feeding back WUS-PDCCH triggered aperiodic CSI reports (the time domain position of the uplink channel resources is between WUS-PDCCH detection occasions and corresponding DRX durations); and, the active time is other ways to trigger the reporting of aperiodic CSI measurements, and there is no need to trigger the reporting and/or the reporting of aperiodic CSI measurements dedicated to WUS-PDCCH.
As another example, table 4 may be configurable and table 3 may not be configurable:
and detecting the skipping time period in one PDCCH in more than one PDCCH detecting the skipping time period, and skipping PDCCH detection.
Since the detection period and the DRX period of the WUS-PDCCH may be separately configured, the detection period and the DRX period of the WUS-PDCCH may not be equal. For example, the DRX period may or may not be an integer multiple of the detection period of the WUS-PDCCH.
In order to reduce the possibility that the terminal device wakes up to detect the PDCCH, and achieve the purpose of further power saving, the terminal device only needs to wake up at the moment of the detection period of the WUS-PDCCH to carry out the WUS-PDCCH detection.
Alternatively, when the DRX cycle is greater than the detection cycle of the WUS-PDCCH, the terminal device may wake up the detection occasion of the WUS-PDCCH at a non-corresponding DRX cycle. For example, if the time is out of the active time, the terminal equipment does not detect the WUS-PDCCH, so that the purpose of saving electricity is further achieved.
Optionally, when the detection period and the DRX period of the WUS-PDCCH are not equal, the RRC message sent by the network device may further include offset time information. The offset time information is used for indicating the terminal equipment to wake up for WUS-PDCCH detection.
Fig. 5 and 6 are schematic diagrams when the detection period and the DRX period of the WUS-PDCCH are not equal. An example manner in which the terminal device wakes up according to the offset time information is described in connection with the embodiments of fig. 5 and 6.
When the detection period and the DRX period of the WUS-PDCCH are not equal, the terminal device may obtain the offset time information by means of a protocol predefined manner or by means of receiving a radio resource control message from the network device.
The terminal device determines the first time according to the offset time information and the DRX period or the DRX duration. Wherein the offset time information may correspond to an offset time equal to 0 or greater than 0.
As shown in fig. 5, if the offset time is equal to 0, the first time is the start time of the DRX cycle, i.e., the start time of the duration of the DRX cycle. Wherein 501 is the detection timing of WUS-PDCCH that does not wake up corresponding to the DRX cycle, and 502 is the detection timing of WUS-PDCCH that does wake up corresponding to the DRX cycle.
As shown in fig. 6, if the offset time is greater than 0, the first time is determined according to the offset time information and the corresponding DRX duration. The terminal device detects WUS-PDCCH at an opportunity which is less than a fourth threshold before and at an interval from the first moment outside the active time of the DRX cycle, wherein the fourth threshold is used for determining a detection opportunity of the PDCCH of the first type which is before and closest to the first moment.
If the detection period of the first type of PDCCH is not equal to the DRX period, the detection timing of the WUS-PDCCH corresponding to the DRX period may be determined according to the DRX duration and the offset time information if the offset time is greater than 0, as shown in fig. 6, and the determined detection timing of the WUS-PDCCH is 602.
Optionally, when the detection period of the first type of PDCCH is an integer multiple of the DRX period, the offset time information may be used to indicate the detection period of the WUS-PDCCH in which the terminal device does not correspond to the DRX period, so as to achieve the purpose of saving energy.
S303, the network device transmits the PDCCH of the first type to the terminal device.
S304, the terminal equipment detects the PDCCH of the first type.
If not in active time at the terminal, it may be determined whether to detect WUS-PDCCH by:
Optionally, the terminal device detects WUS-PDCCH outside the active time of the DRX cycle, before a first time and at an interval from the first time less than a fourth threshold; if the WUS-PDCCH is detected, the terminal device performs a corresponding operation according to the wake-up information, and if the WUS-PDCCH is not detected, the terminal device sleeps.
Optionally, the terminal device receives offset time information from the network device; the first moment is determined according to the offset time information and the DRX duration.
Optionally, before detecting the WUS-PDCCH, it is also required to determine that the detection period of the WUS-PDCCH is not equal to the DRX period.
Alternatively, the terminal device may not detect the WUS-PDCCH if the terminal device is not within the detection opportunity of the WUS-PDCCH or the active time of the DRX cycle.
S305, the RRC message sent by the network device to the terminal device may further include first type indication information, where the first type indication information may indicate that, when the terminal device detects WUS-PDCCH during an active time of the DRX cycle, the following operations may be performed according to the first type indication information:
if the terminal equipment detects the WUS-PDCCH in the active time of the DRX period and the WUS-PDCCH contains a non-wake-up indication outside the corresponding active time, the terminal equipment only detects the PDCCH on the main carrier and does not detect the PDCCH on the auxiliary carrier.
Or if the terminal equipment detects the WUS-PDCCH in the active time of the DRX cycle and the WUS-PDCCH contains a no-wake-up indication outside the corresponding active time, the terminal equipment deactivates the first set of SS sets, wherein the first set of SS sets is not associated with the WUS-PDCCH. The meaning of not being associated here is that SS set configuring the detection WUS-PDCCH is not included in the first SS set group.
Optionally, if the terminal device detects WUS-PDCCH in the active time of the DRX cycle and the WUS-PDCCH includes a no-wake indication outside the corresponding active time, the terminal device detects a skip duration in one of the more than one PDCCH detection skip durations according to the no-wake indication, and skips PDCCH detection.
Optionally, the operation of the terminal device on the WUS-PDCCH including the no-wake-up indication outside the corresponding active time may be carried by an RRC message sent by the network device, or may be predefined by a protocol.
Optionally, if the terminal device detects the WUS-PDCCH during the active time of the DRX cycle and the WUS-PDCCH includes a wake-up indication that triggers the terminal device to make aperiodic CSI measurements, the terminal device does not measure CSI and/or does not send CSI reports.
Alternatively, if the terminal device is configured with table 4 or in a dormant state, detecting WUS-PDCCH according to WUS-PDCCH index configuration table 3; if active time, the WUS-PDCCH is detected according to WUS-PDCCH index configuration table 4.
Optionally, if the WUS-PDCCH is addressed to a group of multiple terminal devices, in S305, the terminal device needs to find DCI corresponding to the WUS-PDCCH detection opportunity of its corresponding bit block from DCI corresponding to all WUS-PDCCH detection opportunities.
Alternatively, the above-mentioned behavior of the terminal device may be predefined by a protocol, without requiring the first type of indication information to be defined.
Fig. 7 shows a schematic diagram of a terminal device 400 according to an embodiment of the present application. Terminal device 400 may be a specific example of terminal device 102 in fig. 1.
As shown in fig. 7, the terminal device 400 may include a processing unit 401 and a detecting unit 402.
The processing unit 401 may be configured to determine a detection condition parameter corresponding to a detection opportunity of a first type of PDCCH, where the first type of PDCCH is used to indicate whether a terminal device performs PDCCH detection during a duration corresponding to a DRX cycle, and determine whether the terminal device detects the first type of PDCCH during an active time of the DRX cycle according to the detection condition parameter.
The detection unit 402 may be configured to detect a first type of PDCCH according to a result of the processing unit.
Optionally, the detection condition parameter may be the number of bits corresponding to the PDCCH detection time, or the number of detected candidate PDCCHs corresponding to the timeslot where the PDCCH detection opportunity is located, or the number of non-overlapping control-channel element (CCE) corresponding to the timeslot where the PDCCH detection opportunity is located, and so on.
According to the embodiment of the application, the terminal equipment can judge whether the WUS-PDCCH is detected in the active time of the DRX period according to the detection condition parameters of the WUS-PDCCH, so that the WUS-PDCCH can be detected more flexibly in the active time.
The respective units of the terminal device 400 may be used to implement the respective operations performed by the terminal device in the embodiments of fig. 1 to 6 described above, and will not be described in detail in order to avoid repetition. Optionally, the determining, by the terminal device, whether to detect the PDCCH of the first type in the active time of the DRX cycle according to the detection condition parameter includes:
and when the bit number of the downlink control information DCI corresponding to the first type of PDCCH detection time is smaller than or equal to a first threshold value, the detection unit detects the first type of PDCCH in the active time of the discontinuous reception DRX period.
Optionally, the determining, by the terminal device, whether to detect the PDCCH of the first type in the active time of the discontinuous reception DRX cycle according to the detection condition parameter includes:
when the bit number of downlink control information DCI corresponding to the first type of PDCCH detection time is smaller than or equal to a first threshold value, the number of detected candidate PDCCHs corresponding to the time slot where the first type of PDCCH detection time is located is smaller than or equal to a second threshold value, and the number of non-overlapping control signal units CCEs corresponding to the time slot where the first type of PDCCH detection time is located is smaller than or equal to a third threshold value, the detection unit detects the first type of PDCCH in the active time of the discontinuous reception DRX period. For example, three thresholds may be set in the manner of tables 1-2 above.
Alternatively, the first threshold may be 4, the second threshold may be 44, 36, 22 or 20, and the third threshold may be 56 or 48 or 32.
Optionally, the detection condition parameter is the number of bits or format of downlink control information DCI corresponding to the first type of PDCCH detection opportunity, and if the number of bits or format is the same as any one of the following cases, the first type of PDCCH is detected:
DCI associated with a cell radio network temporary identifier SI-RNTI or a paging radio network temporary identifier P-RNTI or a random access radio network temporary identifier RA-RNTI or a temporary cell radio network temporary identifier TC-RNTI;
DCI format 1_1;
DCI format 0_1;
DCI format 1_0.
Optionally, the detecting unit detects, outside an active time of the DRX cycle, a PDCCH of the first type at a timing before and spaced apart from the first time by less than a fourth threshold; and if the PDCCH of the first type is detected, the terminal equipment executes corresponding operation according to the wake-up information, and if the PDCCH of the first type is not detected, the terminal equipment sleeps.
Optionally, the terminal device further comprises a receiving unit 403.
The receiving unit may be configured to receive or pre-define the acquisition offset time information by the network device; the first moment is determined according to the offset time information and the DRX duration.
Optionally, before detecting the first type of PDCCH, it is determined that the detection period of the first type of PDCCH is not equal to the DRX period.
Optionally, if the detecting unit detects the PDCCH of the first type in the active time of the DRX cycle and the PDCCH of the first type includes a no-wake-up indication outside the corresponding active time, the detecting unit detects the PDCCH only on the primary carrier and does not detect the PDCCH on the secondary carrier.
Optionally, if the detecting unit detects the PDCCH of the first type in the active time of the DRX cycle, and the PDCCH of the first type includes a no-wake indication outside the corresponding active time, the processing unit deactivates the first set of SS sets, where the first set of SS sets is not associated with the PDCCH of the first type.
Optionally, if the detecting unit detects the first type of PDCCH in the active time of the DRX cycle and the first type of PDCCH includes a non-wake-up indication outside the corresponding active time, the detecting unit detects a skip duration in one PDCCH in more than one PDCCH detection skip duration according to the non-wake-up indication, and skips PDCCH detection.
Optionally, if the detecting unit detects the first type of PDCCH in the active time of the DRX cycle, and the first type of PDCCH includes a wake-up indication triggering the terminal device to perform aperiodic CSI measurement, the processing unit does not measure CSI and/or does not send CSI reports.
Fig. 8 shows a schematic diagram of a network device 500 according to an embodiment of the present application. Terminal device 500 may be a specific example of network device 101 in fig. 1. As shown in fig. 8, the network device 500 may include a transmitting unit 501.
The transmitting unit 501 may be configured to transmit a radio resource control message to a terminal device; the radio resource control message comprises a detection period and a DRX period of a first type of PDCCH, wherein the first type of PDCCH is used for indicating whether the terminal equipment performs PDCCH detection in a duration corresponding to the discontinuous reception DRX period; the detection period and the DRX period of the PDCCH of the first type are configured by different parameters in a radio resource control message. Compared with the prior art, the network equipment adopts different parameters to configure the detection period and the DRX period of the first type PDCCH, so that the network equipment can use the first type PDCCH more flexibly, and the time for detecting the first type PDCCH by the terminal equipment can be configured flexibly.
The respective units of the terminal device 500 may be used to implement the respective operations performed by the network device in the embodiments of fig. 1 to 6 described above, and will not be described in detail in order to avoid repetition.
Optionally, the radio resource control message may further include offset time information, which may be used to determine an opportunity to detect the first type of PDCCH.
Optionally, the offset time information is determined according to a first type of PDCCH detection period and DRX period.
Optionally, the radio resource control message may further include:
the first type indication information may be used to indicate the terminal device to detect the PDCCH in the active time of the DRX cycle, and when the first type PDCCH includes a no-wake indication outside the corresponding active time, the terminal device only detects the PDCCH in the primary carrier, and does not detect the PDCCH in the secondary carrier.
Optionally, the radio resource control message may further include:
the first type indication information may be used to instruct the terminal device to detect a first type of PDCCH during an active time of the discontinuous reception DRX cycle, and when the first type of PDCCH includes a non-wake-up indication outside a corresponding active time, the terminal device deactivates a first set of SS sets, where the first set of SS sets is not associated with the first type of PDCCH. The meaning of not associating here is that the first SS set group does not include SS sets configured to detect the PDCCH.
Optionally, the radio resource control message may further include:
the first type indication information may be used to instruct the terminal device to detect a first type of PDCCH during an active time of the discontinuous reception DRX cycle, and when the first type of PDCCH includes a non-wake-up indication outside a corresponding active time, the terminal device detects a skip duration in one PDCCH detection skip duration among more than one PDCCH detection skip duration according to the non-wake-up indication, and skips PDCCH detection.
Optionally, the radio resource control message may further include:
the first type indication information may be used to indicate the terminal device to detect the first type PDCCH in the active time of the discontinuous reception DRX cycle, where the first type PDCCH includes a wake-up indication that triggers the terminal device to perform aperiodic CSI measurement, and the terminal device does not measure CSI and/or does not send CSI reports.
Fig. 9 shows a schematic structural diagram of a terminal device provided in an embodiment of the present application. Which may be the terminal device in the above embodiment, for implementing the operation of the terminal device in the above embodiment. As shown in fig. 9, the terminal device includes: antenna 810, radio frequency device 820, baseband device 830. The antenna 810 is coupled to a radio frequency device 820. In the downlink direction, the radio frequency device 820 receives information sent by the network device through the antenna 810, and sends the information sent by the network device to the baseband device 830 for processing. In the uplink direction, the baseband apparatus 830 processes information of the terminal device, and sends the processed information to the radio frequency apparatus 820, and the radio frequency apparatus 820 processes information of the terminal device and sends the processed information to the network device through the antenna 810.
Baseband apparatus 830 may include a modem subsystem for implementing processing of various communication protocol layers of data; the system also comprises a central processing subsystem for realizing the processing of the terminal operating system and the application layer; in addition, other subsystems, such as a multimedia subsystem for implementing control of a terminal device camera, screen display, etc., a peripheral subsystem for implementing connection with other devices, etc., may be included. The modem subsystem may be a stand-alone chip. Alternatively, the above means for the terminal may be located in the modem subsystem.
The modem subsystem may include one or more processing elements 831, for example, including a host CPU and other integrated circuits. In addition, the modulation and demodulation subsystem may also include a storage element 832 and an interface circuit 833. The storage element 832 is for storing data and programs, but the programs for executing the methods performed by the terminal device in the above methods may not be stored in the storage element 832, but in a memory outside the modulation and demodulation subsystem. Interface circuit 833 is used to communicate with other subsystems. The above means for a terminal device may be located in a modem subsystem which may be implemented by a chip comprising at least one processing element for performing the steps of any of the methods performed by the above terminal device and interface circuitry for communicating with other means. In one implementation, the unit of the terminal device implementing each step in the above method may be implemented in the form of a processing element scheduler, for example, the apparatus for a terminal device includes a processing element and a storage element, and the processing element invokes the program stored in the storage element to perform the method performed by the terminal in the above method embodiment. The memory element may be a memory element where the processing element is on the same chip, i.e. an on-chip memory element.
Fig. 10 is a schematic structural diagram of a network device according to an embodiment of the present application. For implementing the operations of the network device in the above embodiments. As shown in fig. 10, the network device includes: an antenna 901, a radio frequency device 902, and a baseband device 903. The antenna 901 is connected to a radio frequency device 902. In the uplink direction, the radio frequency device 902 receives information transmitted from a terminal via the antenna 901, and transmits information transmitted from a terminal device to the baseband device 903 for processing. In the downlink direction, the baseband device 903 processes information of the terminal and transmits the processed information to the radio frequency device 902, and the radio frequency device 902 processes information of the terminal equipment and transmits the processed information to the terminal through the antenna 901.
The baseband apparatus 903 may include one or more processing elements 9031, including, for example, a master CPU and other integrated circuits. In addition, the baseband apparatus 903 may further include a storage element 9032 and an interface 9033, where the storage element 9032 is used to store programs and data; the interface 9033 is used to interact with the radio frequency device 902, for example, a common public radio interface (common public radio interface, CPRI). The above means for network device may be located in the baseband means 903, e.g. the above means for network device may be a chip on the baseband means 903 comprising at least one processing element for performing the steps of any of the methods performed by the above network device and interface circuitry for communicating with other means. In one implementation, the units of the network device implementing the steps in the above method may be implemented in the form of a processing element scheduler, for example, an apparatus for a network device includes a processing element and a storage element, where the processing element invokes the program stored in the storage element to perform the method performed by the network device in the above method embodiment. The memory elements may be memory elements on the same chip as the processing elements, i.e., on-chip memory elements, or may be memory elements on a different chip than the processing elements, i.e., off-chip memory elements.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present invention, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (28)

1. A method of wireless communication, comprising:
determining a detection condition parameter corresponding to a detection opportunity of a Physical Downlink Control Channel (PDCCH) of a first type, wherein the PDCCH of the first type is used for indicating whether a terminal device performs PDCCH detection in a duration corresponding to a Discontinuous Reception (DRX) period;
and determining whether the terminal equipment detects the PDCCH of the first type in the active time of the DRX cycle according to the detection condition parameters.
2. The method of claim 1, wherein determining whether the terminal device detects the PDCCH during an active time of a discontinuous reception, DRX, cycle based on the detection condition parameter comprises:
and when the bit number of Downlink Control Information (DCI) corresponding to the PDCCH detection time is smaller than or equal to a first threshold value, the terminal equipment detects the PDCCH in the active time of the DRX period.
3. The method of claim 1, wherein determining whether the terminal device detects the PDCCH during an active time of a discontinuous reception, DRX, cycle based on the detection condition parameter comprises:
and when the bit number of downlink control information DCI corresponding to the PDCCH detection time is smaller than or equal to a first threshold, the number of detected candidate PDCCHs corresponding to the time slot where the PDCCH detection time is located is smaller than or equal to a second threshold, and the number of non-overlapping control signal units CCEs corresponding to the time slot where the PDCCH detection time is located is smaller than or equal to a third threshold, the terminal equipment detects the PDCCH in the active time of the discontinuous reception DRX period.
4. A method according to claim 2 or 3, wherein the first threshold is 4, the second threshold is 44, 36, 22 or 20, and the third threshold is 56 or 48 or 32.
5. The method according to claim 1, wherein the detection condition parameter is a number of bits or a format of downlink control information DCI corresponding to the PDCCH detection occasion, and if the number of bits or the format is the same as any one of the following cases, detecting the PDCCH:
DCI associated with a cell radio network temporary identifier SI-RNTI or a paging radio network temporary identifier P-RNTI or a random access radio network temporary identifier RA-RNTI or a temporary cell radio network temporary identifier TC-RNTI;
DCI format 1_1;
DCI format 0_1;
DCI format 1_0.
6. The method according to claim 1, wherein the method further comprises:
the terminal equipment detects the PDCCH at a time before a first moment and at an interval from the first moment smaller than a fourth threshold outside the active time of the DRX period;
and if the PDCCH is detected, the terminal equipment executes corresponding operation according to the wake-up information, and if the PDCCH is not detected, the terminal equipment sleeps.
7. The method of claim 6, wherein the method further comprises: the terminal equipment obtains offset time information in a protocol predefined mode or in a mode of receiving a radio resource control message from the network equipment;
the first moment is determined according to the offset time information and the DRX duration.
8. The method of claim 6, wherein prior to detecting the PDCCH, the method further comprises: and determining that the detection period of the PDCCH is not equal to the DRX period.
9. The method according to claim 1, wherein the method further comprises:
if the terminal equipment detects the PDCCH in the active time of the DRX period and the PDCCH contains a non-wake-up indication outside the corresponding active time, the terminal equipment only detects the PDCCH on the main carrier and does not detect the PDCCH on the auxiliary carrier.
10. The method according to claim 1, wherein the method further comprises:
and if the terminal equipment detects the PDCCH in the active time of the DRX period and the PDCCH contains a non-wake-up indication outside the corresponding active time, the terminal equipment deactivates a first search space set (SS set) group, wherein the first SS set group is not associated with the PDCCH.
11. The method according to claim 1, wherein the method further comprises:
if the terminal equipment detects the PDCCH in the active time of the DRX period and the PDCCH contains a non-wake-up indication outside the corresponding active time, the terminal equipment detects the skip duration in one PDCCH detection skip duration in more than one PDCCH detection skip duration according to the non-wake-up indication, and skips PDCCH detection.
12. The method according to claim 1, wherein the method further comprises:
and if the terminal equipment detects the PDCCH in the active time of the DRX period and the PDCCH contains a wake-up instruction triggering the terminal equipment to measure the non-periodic Channel State Information (CSI), the terminal equipment does not measure the CSI and/or does not send a CSI report.
13. A method of wireless communication, comprising:
the network equipment sends a radio resource control message to the terminal equipment, wherein the radio resource control message comprises a detection period and a DRX period of a first type of PDCCH, and the first type of PDCCH is used for indicating whether the terminal equipment performs PDCCH detection in a duration corresponding to the discontinuous reception DRX period;
the detection period and the DRX period of the PDCCH of the first type are configured by different parameters in a radio resource control message;
the radio resource control message further includes:
a first type indication information, where the first type indication information is used to instruct the terminal device to detect the PDCCH in the active time of the discontinuous reception DRX cycle, and when the PDCCH includes a non-wake-up indication outside the corresponding active time, the terminal device detects the PDCCH only on the primary carrier, does not detect the PDCCH on the secondary carrier, or
A first type indication information, where the first type indication information is used to indicate that the terminal equipment detects the PDCCH in an active time of a DRX cycle, and when the PDCCH includes a no-wake indication outside a corresponding active time, the terminal equipment deactivates a first set of SS sets, where the first set of SS sets is not associated with the PDCCH, or
A first type of indication information, where the first type of indication information is used to indicate that, when the terminal device detects the PDCCH in an active time of a DRX cycle and the PDCCH includes a non-wake-up indication outside a corresponding active time, the terminal device detects a skip duration in one PDCCH detection skip duration among more than one PDCCH detection skip duration, skips PDCCH detection, or according to the non-wake-up indication
The first type indication information is used for indicating the terminal equipment to detect the PDCCH in the active time of the DRX period, and when the PDCCH contains wake-up indication triggering the terminal equipment to do aperiodic Channel State Information (CSI) measurement, the terminal equipment does not measure the CSI and/or does not send a CSI report.
14. A terminal device, comprising:
a processing unit, configured to determine a detection condition parameter corresponding to a detection opportunity of a first type of PDCCH, where the first type of PDCCH is used to instruct a terminal device whether to perform PDCCH detection in a duration corresponding to a discontinuous reception DRX cycle, and determine, according to the detection condition parameter, whether the terminal device detects the first type of PDCCH in an active time of the DRX cycle;
And the detection unit is used for detecting the PDCCH according to the result of the processing unit.
15. The terminal device of claim 14, wherein determining whether the terminal device detects the PDCCH during an active time of a discontinuous reception, DRX, cycle based on the detection condition parameter comprises:
and when the bit number of Downlink Control Information (DCI) corresponding to the PDCCH detection time is smaller than or equal to a first threshold value, the detection unit detects the PDCCH in the active time of the Discontinuous Reception (DRX) period.
16. The terminal device of claim 15, wherein determining whether the terminal device detects the PDCCH during an active time of a discontinuous reception, DRX, cycle based on the detection condition parameter comprises:
and when the bit number of downlink control information DCI corresponding to the PDCCH detection time is smaller than or equal to a first threshold, the number of detected candidate PDCCHs corresponding to the time slot where the PDCCH detection time is located is smaller than or equal to a second threshold, and the number of non-overlapping control signal units CCEs corresponding to the time slot where the PDCCH detection time is located is smaller than or equal to a third threshold, the detection unit detects the PDCCH in the active time of the discontinuous reception DRX period.
17. The terminal device according to claim 15 or 16, wherein the first threshold is 4, the second threshold is 44, 36, 22 or 20, and the third threshold is 56 or 48 or 32.
18. The terminal device according to claim 14, wherein the detection condition parameter is a number of bits or a format of downlink control information DCI corresponding to the PDCCH detection occasion, and if the number of bits or the format is the same as any one of the following cases, the PDCCH is detected:
DCI associated with a cell radio network temporary identifier SI-RNTI or a paging radio network temporary identifier P-RNTI or a random access radio network temporary identifier RA-RNTI or a temporary cell radio network temporary identifier TC-RNTI;
DCI format 1_1;
DCI format 0_1;
DCI format 1_0.
19. The terminal device of claim 14, wherein the terminal device,
the detection unit detects the PDCCH at a timing before a first time and spaced from the first time by less than a fourth threshold outside the active time of the DRX period;
and if the PDCCH is detected, the terminal equipment executes corresponding operation according to the wake-up information, and if the PDCCH is not detected, the terminal equipment sleeps.
20. The terminal device according to claim 19, characterized in that the terminal device further comprises:
a receiving unit, configured to receive or pre-define by a network device, offset time information;
the first moment is determined according to the offset time information and the DRX duration.
21. The terminal device of claim 19, wherein prior to detecting the PDCCH, it is determined that a detection period of the PDCCH is not equal to a DRX period.
22. The terminal device of claim 14, wherein the terminal device,
and if the detecting unit detects the PDCCH in the active time of the DRX period and the PDCCH contains a non-wake-up instruction outside the corresponding active time, the detecting unit only detects the PDCCH on the main carrier and does not detect the PDCCH on the auxiliary carrier.
23. The terminal device of claim 14, wherein the terminal device,
if the detecting unit detects the PDCCH in the active time of the DRX period and the PDCCH contains a non-wake-up indication outside the corresponding active time, the processing unit deactivates a first search space set (SS set) group, wherein the first SS set group is not associated with the PDCCH.
24. The terminal device of claim 14, wherein the terminal device,
and if the detection unit detects the PDCCH in the active time of the DRX period and the PDCCH contains a non-wake-up indication outside the corresponding active time, the detection unit detects the skip duration in one PDCCH detection skip duration in more than one PDCCH detection skip duration according to the non-wake-up indication, and skips PDCCH detection.
25. The terminal device of claim 14, wherein the terminal device,
and if the detecting unit detects the PDCCH in the active time of the DRX period and the PDCCH contains a wake-up instruction triggering the terminal equipment to perform aperiodic Channel State Information (CSI) measurement, the processing unit does not measure the CSI and/or does not send a CSI report.
26. A network device, comprising:
a transmitting unit, configured to transmit a radio resource control message to a terminal device;
the radio resource control message comprises a detection period and a DRX period of a first type of PDCCH, wherein the first type of PDCCH is used for indicating whether the terminal equipment performs PDCCH detection in a duration corresponding to the discontinuous reception DRX period;
the detection period and the DRX period of the PDCCH of the first type are configured by different parameters in a radio resource control message;
The radio resource control message further includes:
a first type indication information, where the first type indication information is used to instruct the terminal device to detect the PDCCH in the active time of the discontinuous reception DRX cycle, and when the PDCCH includes a non-wake-up indication outside the corresponding active time, the terminal device detects the PDCCH only on the primary carrier, does not detect the PDCCH on the secondary carrier, or
A first type indication information, where the first type indication information is used to indicate that a terminal device detects the PDCCH in an active time of a DRX cycle, and when the PDCCH includes a no-wake indication outside a corresponding active time, the terminal device deactivates a first set of SS sets, where the first set of SS sets is not associated with the PDCCH, or
A first type of indication information, where the first type of indication information is used to indicate that, when a terminal device detects the PDCCH in an active time of a DRX cycle and the PDCCH includes a no-wake indication outside a corresponding active time, the terminal device detects a skip duration in one PDCCH detection skip duration from more than one PDCCH detection skip duration, skips PDCCH detection, or
The first type indication information is used for indicating the terminal equipment to detect the PDCCH in the active time of the DRX period, and when the PDCCH contains wake-up indication triggering the terminal equipment to do aperiodic Channel State Information (CSI) measurement, the terminal equipment does not measure the CSI and/or does not send a CSI report.
27. A network system comprising at least one terminal device according to any one of claims 14 to 25 and a network device according to claim 26.
28. A computer storage medium having stored therein computer executable instructions for causing the computer to perform the method of any one of claims 1 to 13 when invoked by the computer.
CN201910365339.4A 2019-04-30 2019-04-30 Wireless communication method, terminal equipment, network equipment and network system Active CN111865484B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114679784A (en) * 2020-12-25 2022-06-28 展讯通信(上海)有限公司 Search space set switching method and device and readable storage medium
CN115968030A (en) * 2021-10-11 2023-04-14 中国移动通信有限公司研究院 Paging detection method, device, terminal, network equipment and storage medium
WO2023123438A1 (en) * 2021-12-31 2023-07-06 Oppo广东移动通信有限公司 Pdcch detection method and apparatus, pdcch sending method and apparatus, and device and storage medium
CN116318600B (en) * 2023-05-19 2023-08-22 广州世炬网络科技有限公司 Terminal position detection method, device, base station and storage medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103402245A (en) * 2013-07-24 2013-11-20 中国联合网络通信集团有限公司 Configuration method, equipment and system for DRX (discontinuity reception) cycle
CN105122858A (en) * 2013-04-03 2015-12-02 美国博通公司 Handling downlink semi-persistent scheduling retransmission in wireless networks
WO2016163065A1 (en) * 2015-04-10 2016-10-13 Panasonic Intellectual Property Corporation Of America Discontinuous reception operation for licensed-assisted access
CN108966322A (en) * 2017-05-17 2018-12-07 维沃移动通信有限公司 A kind of data transmission method, base station and terminal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10588171B2 (en) * 2017-05-12 2020-03-10 Qualcomm Incorporated Techniques for multi-state DRX in new radio
US10609700B2 (en) * 2017-06-15 2020-03-31 Apple Inc. Control channel for UE power saving

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105122858A (en) * 2013-04-03 2015-12-02 美国博通公司 Handling downlink semi-persistent scheduling retransmission in wireless networks
CN103402245A (en) * 2013-07-24 2013-11-20 中国联合网络通信集团有限公司 Configuration method, equipment and system for DRX (discontinuity reception) cycle
WO2016163065A1 (en) * 2015-04-10 2016-10-13 Panasonic Intellectual Property Corporation Of America Discontinuous reception operation for licensed-assisted access
CN108966322A (en) * 2017-05-17 2018-12-07 维沃移动通信有限公司 A kind of data transmission method, base station and terminal

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Huawei, HiSilicon, Neul.R2-1708301 "Power saving signal or channel in NB-IoT".3GPP tsg_ran\WG2_RL2.2017,(第TSGR2_99期),第2节. *
InterDigital, Inc. "R1-1813244 UE adaptation based on traffic_final".3GPP tsg_ran\wg1_rl1.2018,全文. *
R1-1903988 "PDCCH-based power saving signal/channel";Huawei等;《3GPP tsg_ran\wg1_rl1》;20190412;全文 *
R1-1904103 "PDCCH-based power saving signal/channel design";vivo;《3GPP tsg_ran\wg1_rl1》;20190412;第2节 *

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