Channel monitoring method, device and user equipment

Abstract

The present application discloses a channel monitoring method, device and user equipment, which belongs to the field of communication technology. It can solve the problem of poor data transmission performance caused by data transmission delay due to failure to monitor PDCCH. The method includes: UE receives first information sent by a network device, the first information is used to indicate the UE's monitoring behavior on the downlink control channel, and the first information includes at least one of the following: time information and frequency domain information; UE monitors or stops monitoring the target downlink control channel according to the first information. The embodiment of the present application is applied to the process of monitoring the downlink control channel.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a channel monitoring method, device and user equipment. Background Art

[0002] In a communication system, when monitoring the physical downlink control channel (PDCCH), the user equipment (UE) can periodically monitor the PDCCH through discontinuous reception (DRX) to receive downlink data or uplink authorization information, etc. That is, the UE periodically enters a sleep state (sleep mode) at certain times and does not monitor the PDCCH. When monitoring is required, it wakes up from the sleep state (wake up) to monitor and receive the PDCCH, so that the UE can achieve the purpose of power saving.

[0003] However, in the above process, since there may be data to be transmitted when the UE is in sleep state, and the UE does not monitor the PDCCH at this time, but monitors the PDCCH after switching to the awake state, it will cause a delay in data transmission, resulting in poor data transmission performance. Summary of the invention

[0004] The embodiments of the present application provide a channel monitoring method, device and user equipment, which can flexibly monitor PDCCH and improve the performance of data transmission.

[0005] In the first aspect, an embodiment of the present application provides a channel monitoring method, which includes: a UE receives first information sent by a network device, where the first information is used to indicate the UE's monitoring behavior on a downlink control channel, and the first information includes at least one of the following: time information and frequency domain information; the UE monitors or stops monitoring the target downlink control channel according to the first information.

[0006] In a second aspect, an embodiment of the present application provides a channel monitoring device, which includes: a receiving module and a processing module. The receiving module is used to receive first information sent by a network device, and the first information is used to indicate the monitoring behavior of the UE on the downlink control channel. The first information includes at least one of the following: time information and frequency domain information. The processing module is used to monitor or stop monitoring the target downlink control channel according to the first information received by the receiving module.

[0007] In a third aspect, an embodiment of the present application provides a UE, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the channel monitoring method described in the first aspect.

[0008] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the channel monitoring method described in the first aspect are implemented.

[0009] In a fifth aspect, an embodiment of the present application provides a chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the channel monitoring method as described in the first aspect.

[0010] In the embodiment of the present application, the UE can monitor or stop monitoring the target downlink control channel according to the first information sent by the network device. When monitoring the downlink control channel, the UE can flexibly monitor the corresponding downlink control channel in time and frequency domain according to the dynamic indication of the network device, thereby avoiding data transmission delay caused by failure to monitor the downlink control channel, thereby saving UE power consumption and improving data transmission performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

[0012] Figure 2 is a schematic diagram of a channel monitoring method provided in an embodiment of the present application;

[0013] Figure 3 This is one of the example schematic diagrams of a channel monitoring provided by an embodiment of the present application;

[0014] Figure 4 This is a second example schematic diagram of a channel monitoring provided by an embodiment of the present application;

[0015] Figure 5 This is a third example schematic diagram of a channel monitoring provided by an embodiment of the present application;

[0016] Figure 6 This is a fourth example schematic diagram of a channel monitoring provided by an embodiment of the present application;

[0017] Figure 7 This is a fifth example schematic diagram of a channel monitoring provided by an embodiment of the present application;

[0018] Figure 8 is a structural schematic diagram of a channel monitoring device provided in an embodiment of the present application;

[0019] Fig. 9 This is one of the hardware structure diagrams of a UE provided in an embodiment of the present application;

[0020] Fig.10 This is the second schematic diagram of the hardware structure of a UE provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0022] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here. In addition, the "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0023] The following is an explanation of some concepts and / or terms involved in the channel monitoring method, device and user equipment provided in the embodiments of the present application.

[0024] DRX in radio resource control (RRC) connected state (RRC-connected): The DRX cycle consists of "On Duration" and "Opportunity for DRX". During the "On Duration" time, the UE monitors and receives the physical downlink control channel (PDCCH); during the "Opportunity for DRX" time, the UE does not monitor the PDCCH to save power. If a newly transmitted PDCCH is received within the "On Duration", the timer (inactivity timer) will be started or restarted to extend the duration of the UE monitoring the PDCCH.

[0025] Long and short DRX cycles: The system can configure a short DRX cycle or a long DRX cycle for the UE according to different service scenarios. For example, when performing VOIP services, the voice codec usually sends a VOIP packet in 20ms, so a short DRX cycle of 20ms can be configured. During the long silent period during a voice call, a long DRX cycle can be configured. If both a short cycle and a long cycle are configured and the DRX short cycle timer times out, the UE will enter a long DRX cycle. Conversion between short and long DRX cycles:

[0026] Case 1: When the UE receives PDCCH within the On Duration timer interval, the DRX-inactivity timer will be triggered; when the DRX-inactivity timer times out, the DRX short cycle timer will be triggered; when the DRX-short cycle timer times out, the long DRX cycle will be used.

[0027] Case 2: If PDCCH is received in long DRX, it will trigger the use of short DRX.

[0028] The role of the DRX-inactivity timer is to reduce the processing delay of data. However, if the duration of the DRX-inactivity timer is set too long, when the data from the network side has been sent but the timer has not timed out, the UE continues to monitor the downlink subframes and cannot enter the sleep state in a timely manner. To quickly let the UE enter the sleep state, the system introduces a media access control layer-control element (MAC CE) related to DRX. When the UE receives this DRX control unit, it will stop the On Duration timer and the DRX-inactivity timer and enter DRX. The specific process is as follows: If the UE receives a DRX command (command) MAC CE or a long DRX command MAC CE, then it stops the drx-on duration timer or the DRX-inactivity timer. If what is received is a DRX Command MAC CE, if a short DRX cycle is configured, the DRX-short cycle timer is started or restarted in the first symbol after the reception of the DRX Command MAC CE, and the short DRX cycle is started to be used; otherwise, the long DRX cycle is started to be used. If the DRX-short cycle timer expires, the long DRX cycle is used. If what is received is a long DRX command MAC CE, the DRX-short cycle timer is stopped, and the long DRX cycle is started to be used.

[0029] It can be seen that the currently supported DRX command MAC CE is used to terminate the DRX-on duration timer and the DRX-inactivity timer. For the long DRX command MAC CE, it can also terminate L (L≥1, determined by the DRX-short cycle timer) short DRX cycles. Thus, the UE can terminate the active time until the on duration of the next DRX cycle enters the active time and starts to monitor the PDCCH. However, the DRX command MAC CE cannot perform more dynamic PDCCH monitoring control and adjustment during one or K (K<L) short DRXs.

[0030] DCP: DCI format 2_6 with CRC scrambled by PS-RNTI scrambled with packet switch-radio network temporary identity. In order to further save energy under DRX configuration, the network side can further configure DCP for the UE under the connected DRX (C DRX) mechanism. The wake-up indication field in DCP is used to indicate whether the UE starts the next DRX cycle onduration Timer or the DCP indicates whether the MAC layer starts the next DRX cycle onduration Timer. Starting the timer means that the UE will monitor the PDCCH within the timer, otherwise it will not monitor the PDCCH.

[0031] Currently, DCI format 2-6 has two information fields:

[0032] Wake-up indication (1 bit) This field indicates whether the UE starts the on duration timer of the next DRX cycle;

[0033] The Scell ​​dormancy indication (0, 1, 2, 3, 4, 5 bits) field is used to indicate whether the SCell of the UE enters dormancy behavior under carrier aggregation (CA). In addition, the SCell dormancy indication field in DCI2-6 is used to indicate whether the SCell group switches to the dormancy bandwidth part (BWP) in units of SCell groups. Each bit in this field corresponds to an SCell group.

[0034] SCell dormancy indication during activation period: SCell dormancy indication can be performed by scheduling DCI format during activation period. In one case, physical downlink shared channel (PDSCH), physical uplink shared channel (PUSCH) and SCell dormancy indication are scheduled simultaneously through DCI format 1-1, 0-1. In another case, SCell dormancy indication is performed through DCI format 1-1 and PDSCH is not scheduled.

[0035] Same slot scheduling: The PDCCH of the current time slot schedules the PDSCH of the same time slot. After the UE receives two symbols of PDCCH, it needs additional processing time to demodulate the PDCCH to obtain the downlink control information (DCI) transmitted by the PDCCH, including (resource block, RB) allocation information, etc. Therefore, before obtaining the RB allocation information, the UE needs to cache the PDSCH of the entire bandwidth / BWP.

[0036] Cross-slot scheduling: The PDCCH of the current slot schedules the PDSCH of a different subsequent slot. If the UE can preset the time range in which it will not be scheduled to receive or transmit, the UE can put its radio frequency (RF) and some front-end hardware and other modem hardware into power saving mode. For example, after the UE receives two symbols of PDCCH, it has enough time to decode to obtain the content (DCI) transmitted by the PDCCH, including RB allocation information, so the UE only needs to receive the corresponding PDSCH on the relevant RB.

[0037] It is worth noting that the technology described in the embodiments of the present application is not limited to the long term evolution (LTE) / LTE evolution (LTE-Advanced, LTE-A) system, but can also be used in other wireless communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), single-carrier frequency division multiple access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned systems and radio technologies as well as for other systems and radio technologies. However, the following description describes a new radio (NR) system for illustrative purposes, and NR terms are used in most of the following descriptions. These technologies can also be applied to applications other than NR system applications, such as the 6th Generation (6G) communication system.

[0038] For example, Figure 1 FIG. 1 is a schematic diagram showing an architecture of a communication system provided by an embodiment of the present application. Figure 1 As shown, the communication system may include UE 01 and network device 02. UE 01 and network device 02 may establish a connection and communicate with each other.

[0039] The UE in the embodiment of the present application may also be referred to as a terminal device, and the UE may be a mobile phone, a tablet personal computer, a laptop computer or a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), a wearable device or a vehicle-mounted device (VUE), a pedestrian terminal (PUE) and other terminal-side devices, and the wearable device includes: a bracelet, a headset, glasses, etc. It should be noted that the specific type of UE is not limited in the embodiment of the present application.

[0040] The network device in the embodiment of the present application may be a base station or a core network, wherein the base station may be referred to as a node B, an evolved node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting receiving point (TRP) or some other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0041] The channel monitoring method provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0042] In the embodiment of the present application, the behavior of the UE monitoring the downlink control channel is dynamically defined through the monitoring-related signaling of the downlink control channel (e.g., the first information described in the following embodiment). The UE can skip the monitoring of the downlink control channel (i.e., not monitor the corresponding downlink control channel) or monitor the corresponding downlink control channel according to the monitoring-related signaling, thereby realizing flexible monitoring of the downlink control channel and avoiding data transmission delay caused by failure to monitor the downlink control channel in a timely manner.

[0043] The present application provides a channel monitoring method. Figure 2 FIG. 4 is a flow chart of a channel monitoring method provided by an embodiment of the present application. Figure 2 As shown, the channel monitoring method provided in the embodiment of the present application may include the following steps 201 to 203.

[0044] Step 201: A network device sends first information to a UE.

[0045] Optionally, in an embodiment of the present application, the network device may send the first information to the UE and a higher layer on the UE side (eg, a medium access control (MAC) layer).

[0046] Step 202: The UE receives first information sent by the network device.

[0047] In an embodiment of the present application, the above-mentioned first information is used to indicate the UE's monitoring behavior of a downlink control channel (eg, PDCCH), and the first information includes at least one of the following: time information and frequency domain information.

[0048] In an embodiment of the present application, the first information may be a downlink control channel monitoring signaling to instruct the UE to monitor the downlink control channel, or a downlink control channel skipping signaling (eg, PDCCH skipping signaling) to instruct the UE not to monitor the downlink control channel.

[0049] Optionally, in the embodiment of the present application, the time information includes at least one of the following: a start time and an application time. The start time is the time to start monitoring or stop monitoring the downlink control channel, and the application time is the duration of monitoring or stopping monitoring the downlink control channel.

[0050] It should be noted that the above start time can also be called the effective time.

[0051] Optionally, in an implementation manner of an embodiment of the present application, when the above-mentioned first information is DCI, the start time is any one of the following: the next time unit, the time indicated by the DCI, the first time and the second time.

[0052] Among them, the next time unit is the next time unit of the time unit where the DCI is received, the first time is the time determined according to the symbol where the received DCI is located, and the second time is specified by the protocol or configured by the high layer according to the UE processing capability.

[0053] Optionally, in an embodiment of the present application, when the above-mentioned first information is DCI (for example, UE-specific DCI or UE group common DCI (UE-specific or group common DCI)), and the DCI schedules data / signal (or the DCI does not schedule data / signal (for example, reference signal)), the start time of the first information is any one of the following: the next time unit, the time indicated by the DCI, the first time and the second time.

[0054] Optionally, in an embodiment of the present application, the above-mentioned next time unit can be any one of the following: the next symbol, the next time slot, the next monitoring occasion, the next short DRX cycle, the next long DRX cycle, etc.

[0055] It should be noted that the time indicated by the above DCI can be understood as: the DCI includes a specific start time.

[0056] Optionally, in an embodiment of the present application, when the above-mentioned start time is the first time, the first time is the time determined based on the symbol where the received DCI is located, which can be understood as: the start time is related to the position of the symbol where the DCI is sent, that is, the UE can determine the start time (that is, the effective time of the first information) based on the position of the symbol where the DCI is located (for example, the start symbol or end symbol where the DCI is located) in the time slot.

[0057] Exemplarily, if the time slot where the PDCCH skipping signaling is located is numbered n and the PDCCH skipping signaling is in the first 3 symbols of a time slot, the PDCCH skipping signaling takes effect in the next time slot (i.e., the n+1 time slot); and when the PDCCH skipping signaling is located after the 3rd symbol of a time slot, the PDCCH skipping signaling takes effect in the n+2 time slot.

[0058] Optionally, in an embodiment of the present application, when the above-mentioned DCI is a wake-up signal (WUS), the above-mentioned start time is the next DRX duration (ie, the next DRX on duration) indicated by the WUS.

[0059] Optionally, in an embodiment of the present application, when the above-mentioned DCI is used to indicate switching of BWP, the start time is the time after the BWP is switched.

[0060] It can be understood that if the DCI indicates PDCCH skipping signaling after switching BWP (such as switching from BWP#1 to BWP#2, or switching from dormant BWP to non-dormant BWP), the start time of the PDCCH skipping signaling is the time after the BWP switching.

[0061] Optionally, in an embodiment of the present application, in the case where the above-mentioned DCI schedules a downlink data channel (e.g., PDSCH), the above-mentioned start time is a time determined based on the time slot in which the downlink data channel is located and a third time slot number, and the third time slot number is the time slot number in which an uplink control channel (e.g., PUCCH) for feedback confirmation information of the downlink data channel is transmitted.

[0062] It should be noted that if DCI schedules PDSCH at the same time, and the PDSCH is same slot scheduling or cross-slot scheduling, the start time of the PDCCH skipping signaling is m+k1, where m is the time slot where the PDSCH is located, and k1 is the slot number or sub-slot number where the PUCCH transmission for feedback HARQ-ACK / ACK information for the PDSCH is located.

[0063] Optionally, in an embodiment of the present application, in the case where the above-mentioned DCI schedules an uplink data channel, the start time is a time determined according to the time slot where the DCI is located and the time slot number where the scheduled uplink data channel is located.

[0064] It should be noted that if the DCI also schedules PUSCH, the starting time of the PDCCH skipping signaling is t+k2+Δ, where t is the time slot where the DCI is located, k2 is the time slot number where the PUSCH is scheduled, k2 can be indicated by the DCI that schedules PUSCH, Δ is the time slot or symbol number configured by the higher layer (ie, RRC), and the value of Δ can be 0.

[0065] Optionally, in another implementation manner of the embodiment of the present application, when the above-mentioned first information is a media access control layer control element (media access control-control element, MAC CE), the above-mentioned start time is any one of the following: a third time and a fourth time.

[0066] The third time is the time after the preset duration of the time slot where the MAC CE is located is received, and the fourth time is the time determined according to the time slot where the MAC CE is received, the first time slot number, and the second time slot number. The first time slot number is the time slot number of the uplink control channel transmission of the downlink data channel feedback confirmation information of the received MAC CE, and the second time slot number is the number of time slots occupied by each subframe of the sub-carrier space (SCS) used for the uplink control channel transmission.

[0067] It should be noted that if the first information (ie, PDCCH skipping signaling) is MAC CE, the start time of the PDCCH skipping signaling is the time when the MAC CE slot is received + 4 ms, or the time when the MAC CE slot is received. k3 is the time slot number of the PUCCH transmission in which the HARQ-ACK information is fed back to the PDSCH where the received MAC CE is located. k3 can be indicated by the PDSCH feedback HARQ information timing indicator field in the DCI format of the scheduling PDSCH. It is the number of time slots occupied by each subframe of the SCS used for PUCCH transmission.

[0068] Optionally, in an embodiment of the present application, the above-mentioned application time is any one of the following: a first duration, a second duration, an end time, a third duration, a target time slot and a monitoring opportunity.

[0069] Among them, the first duration is the duration of N consecutive or discontinuous short DRX cycles after the time unit where the first information is received, the second duration is the duration of M consecutive or discontinuous long DRX cycles after the time unit where the first information is received, the end time is the time to end monitoring or stop monitoring the downlink control channel, the third duration is the time length for monitoring or stopping monitoring the downlink control channel, the target time slot is the time slot for monitoring or stopping monitoring the downlink control channel, the monitoring occasion is the occasion for monitoring or stopping monitoring the downlink control channel, and N and M are both positive integers.

[0070] Optionally, in the embodiment of the present application, the first duration may specifically be the duration of N consecutive or discontinuous short DRX cycles (on duration timer of short DRX cycle) after the symbol, time slot, monitoring opportunity or DRX cycle where the first information (PDCCH skipping signaling) is received. It should be noted that the second duration is similar and will not be described here.

[0071] Optionally, in the embodiment of the present application, the above-mentioned time length can be any one of the following: X slots, X symbols, X PDCCH monitoring opportunities, X PDCCH monitoring ranges (monitoring spans), where X is a positive integer.

[0072] It should be noted that the above time length may be continuous or discontinuous. For example, the above time slot / symbol is a downlink time slot / symbol, or a flexible direction time slot / symbol (i.e., uplink or downlink time slot / symbol); the above PDCCH monitoring opportunity / PDCCH monitoring range is a PDCCH except for a CSS of a specific type (type-0, type-0A, type-1 or type-2).

[0073] Optionally, in an embodiment of the present application, the above-mentioned frequency domain information includes at least one of the following: a preset number of cells / component carriers (CC), BWP, frequency range (FR), physical resource blocks (PRB) and a cell group corresponding to the cell.

[0074] It can be understood that the network device can indicate to the UE through the first information which cell / carrier unit, which BWP, which FR, which PRBs and / or which cell groups to perform monitoring or stop monitoring the PDCCH.

[0075] It should be noted that the cell group corresponding to the above-mentioned cell may be the cell group corresponding to the secondary cell, which can be understood as: dividing multiple cells (such as the primary cell (PCell), the primary secondary cell (PSCell) and / or the secondary cell (SCell)) into multiple cell groups (cell group), and the PDCCH skipping signaling may indicate which cell group to perform monitoring or stop monitoring the PDCCH.

[0076] Step 203: The UE monitors or stops monitoring the target downlink control channel according to the first information.

[0077] In an embodiment of the present application, after receiving the first information, the UE may monitor or stop monitoring the target downlink control channel under the indication of the start time included in the first information and within the application time included in the first information.

[0078] Optionally, in an embodiment of the present application, if the above-mentioned PDCCH skipping signaling occupies x bit(s), and 1 bit in the x bit(s) indicates whether to stop monitoring the PDCCH, then when the value of the 1 bit is 0, it indicates that the target downlink control channel is not monitored (for example, within a specified time period, the PDCCH search space (search space), control resource set (CORESET), DCI format (format) or aggregation level (aggregation level, AL) is not monitored); when the value of the 1 bit is 1, it indicates that the target downlink control channel is monitored.

[0079] It should be noted that the above-mentioned target downlink control channel may be pre-configured by the network device, or predetermined by the UE, or indicated by the first information, that is, after receiving the first information, the UE knows which downlink control channels need to be monitored or stopped monitoring.

[0080] Optionally, in an embodiment of the present application, the above-mentioned target downlink control channel includes at least one of the following: all downlink control channels on a specific search space (UE specific search space, USS), all downlink control channels on a first preset type common search space (CSS), downlink control channels on a first preset type CSS except for downlink control channels corresponding to a specific DCI format, all downlink control channels on the CSS, and a specific downlink control channel.

[0081] Optionally, in an embodiment of the present application, the above-mentioned specific downlink control channel is configured by a high layer or indicated by the first information.

[0082] Optionally, in an embodiment of the present application, the first information indicates the second information, and the specific downlink control channel is determined by the second information. The second information includes at least one of the following: a search space set, a DCI format, an aggregation level, a control resource set (CORESET), an RNTI, and a resource block set (RB set).

[0083] Optionally, in the embodiment of the present application, the target downlink control channel at least includes all downlink control channels on the first preset type CSS. After the above step 202, the channel monitoring method provided in the embodiment of the present application further includes the following step 301.

[0084] Step 301: UE monitors the second downlink control channel.

[0085] In an embodiment of the present application, the above-mentioned second downlink control channel includes at least one of the following: all downlink control channels on other types of CSS, downlink control channels scrambled by RNTI on other types of CSS, downlink control channels other than downlink control channels scrambled by specific RNTI on other types of CSS, and downlink control channels corresponding to specific DCI formats on the first preset type CSS; other types of CSS are CSS other than the first preset type CSS.

[0086] Optionally, in an embodiment of the present application, the first preset type CSS may be type3 CSS, the other types of CSS may be type0 CSS, type0A CSS, type1 CSS or type2 CSS, and the specific DCI format may be DCIformat 2-6.

[0087] Optionally, in an embodiment of the present application, when the above-mentioned first information is used for the downlink control channel corresponding to DCI format 2-6, the "on duration" timer of the DRX cycle corresponding to the DCI format 2-6 can be turned on or off according to the configuration (or predefinition) of RRC.

[0088] Optionally, in an embodiment of the present application, the above-mentioned RNTI-scrambled downlink control channel may include at least one of the following: a downlink control channel scrambled by a system information RNTI (SI-RNTI), a downlink control channel scrambled by a paging RNTI (P-RNTI), a downlink control channel scrambled by a random access RNTI (RA-RNTI), a downlink control channel scrambled by a temporary cell RNTI (TC-RNTI), a downlink control channel scrambled by a cell RNTI (C-RNTI), a downlink control channel scrambled by a modulation and coding scheme-C-RNTI (MCS-C-RNTI), and a downlink control channel scrambled by a configured scheduling RNTI (CS-RNTI).

[0089] Optionally, in an embodiment of the present application, the above-mentioned specific RNTI may be any one of the following: C-RNTI, MCS-C-RNTI, CS-RNTI.

[0090] It should be noted that the embodiment of the present application does not limit the execution order of the above steps 301 and 203. In one way, the above step 203 can be executed first, and then the above step 301 can be executed, that is, the target downlink control channel can be monitored or stopped from being monitored according to the first information, and then the second downlink control channel can be monitored; in another way, the above step 301 can be executed first, and then the above step 203 can be executed, that is, the second downlink control channel can be monitored first, and then the target downlink control channel can be monitored or stopped from being monitored according to the first information; in another way, the above steps 203 and 301 can be executed at the same time, that is, the second downlink control channel can be monitored while the target downlink control channel is monitored or stopped from being monitored according to the first information.

[0091] Optionally, in the embodiment of the present application, the above step 203 can be specifically implemented by the following step 203a.

[0092] Step 203a: When a preset condition is met, the UE monitors or stops monitoring the target downlink control channel according to the first information.

[0093] In an embodiment of the present application, the above-mentioned preset conditions include at least one of the following: the cell where the UE is located is a secondary cell, the cell where the UE is located is a secondary cell of a main cell scheduled across carriers, the frequency corresponding to the cell where the UE is located is within the target frequency range, the UE is in the target state, the UE monitors the downlink control channel according to other monitoring-related information, and the BWP on the carrier unit corresponding to the downlink control channel is in a non-sleep state.

[0094] It should be noted that the above-mentioned other monitoring related information can be understood as: information used to monitor the downlink control channel, and monitoring the downlink control channel according to the other monitoring related information can achieve the purpose of saving power consumption of the UE.

[0095] Optionally, in an embodiment of the present application, the above-mentioned other monitoring-related information includes at least one of the following: DRX cycle-related information, WUS, cross-slot scheduling indication information, and secondary cell dormancy indication information (SCell dormancy indication).

[0096] Optionally, in an embodiment of the present application, the above-mentioned DRX cycle-related information may include at least one of the following: DRX inactivation time (inactivitity Timer) information, HARQ round-trip time delay (RTT Timer) information, and retransmission time (retransmission timer) information.

[0097] Optionally, in an embodiment of the present application, the above-mentioned PDCCH skipping signaling can also be applied to all cells, that is, the UE can monitor or stop monitoring the target downlink control channel according to the first information in the secondary cell, the primary cell (PCell), the primary secondary cell (PSCell) or the PUCCH secondary cell (PUCCH SCell). For example, if the UE is in the primary cell or the primary secondary cell, the UE can stop monitoring the PDCCH on the primary cell or the primary secondary cell, and continue to monitor or not monitor the PDCCH on other secondary cells, or the UE can continue to monitor the PDCCH on all cells in the cell group where the primary cell or the primary secondary cell is located.

[0098] For example, Figure 3As shown, the PDCCH skipping signaling acting on the PCell, PSCell or PUCCH SCell, the UE skips the PDCCH monitoring in the DRX activation time (on duration timer) in the corresponding short DRX cycle (short DRX cycle) or long DRX cycle (long DRX cycle). For example, the PDCCH monitoring in the first short DRX time is skipped within the DRX short cycle time (i.e., skip 1st shortDRX within DRX-short cycle timer); the PDCCH monitoring in the second short DRX and long DRX cycle time is skipped within the DRX short cycle time (i.e., skip 2nd short DRX within DRX-Short cycle timer and long DRX cycle).

[0099] For example, Figure 4 As shown, it is shown that the Scell ​​in the same cell group is affected by the PCell, PSCell, and PUCCHSCell, that is, according to the PDCCH skip signaling, the monitoring of the PDCCH in the DRX activation time (on duration timer) is skipped.

[0100] For example, Figure 5 As shown, it is shown that the Scells in the same cell group are not affected by the PCell, PSCell, and PUCCHSCell, that is, the monitoring of the PDCCH in the DRX activation time (on duration timer) is not skipped.

[0101] Optionally, in an embodiment of the present application, the UE may stop monitoring the PDCCH on the secondary cell (SCell) and continue to monitor the PDCCH on the primary cell or the primary and secondary cells.

[0102] Optionally, in an embodiment of the present application, for dynamic spectrum sharing (DSS), that is, a scenario in which a primary cell can be cross-carrier scheduled by a secondary cell, PDCCH skipping signaling is not applicable to a secondary cell that can cross-carrier schedule a primary cell.

[0103] Optionally, in an embodiment of the present application, the target state may be any one of the following: a connected state (RRC-connected state), an idle state, or an inactive state.

[0104] Optionally, in an embodiment of the present application, PDCCH skipping signaling can be applied to UE (UE in an idle state or an inactive state) that supports small data or early data transmission.

[0105] Optionally, in an embodiment of the present application, PDCCH skipping signaling can be applied to joint DCI in DSS, that is, joint DCI schedules multiple CCs.

[0106] It should be noted that, when the PDCCH skipping signaling is applicable to UEs in an idle state or an inactive state, the PDCCH skipping signaling can indicate whether the UE supporting small data or early data transmission (UE in an idle state or an inactive state) continues to monitor the PDCCH that schedules small data or early data. When the PDCCH is combined with the DCI-based WUS and is used for UEs in an idle state or an inactive state, the PDCCH skipping signaling can also indicate whether to skip the monitoring of the paging PDCCH.

[0107] Optionally, in an embodiment of the present application, if the PDCCH skipping signaling acts on a group of CCs (multiple CCs), if the currently activated (active) BWP on some CCs is a dormant / sleep (dormant) state BWP, the UE ignores the PDCCH skipping signaling, that is, the PDCCH only acts on the CC whose current active BWP is a non-dormant state BWP.

[0108] Optionally, in an embodiment of the present application, if the PDCCH skipping signaling acts on a CC, the PDCCH skipping should not indicate that the current active BWP is a CC of a dormant BWP, that is, if the UE receives such PDCCH skipping signaling, it is regarded as error information.

[0109] For example, Figure 6As shown, it is shown that a PDCCH skipping signaling acts on multiple CCs and supports cross-carrier indication, that is, for multiple CCs, by sending a PDCCH skipping signaling, the multiple CCs can skip the monitoring of the PDCCH based on the PDCCH skipping signaling. For example, sending a PDCCH skipping signaling in cell #1 can act on cell #1, cell #2 and cell #3, so that the UEs in these cells can skip the monitoring of the PDCCH specified in the specified time (such as DRX activation time (on duration timer)) and frequency range based on the PDCCH skipping signaling.

[0110] For example, Figure 7 As shown, it is shown that a PDCCH skipping signaling acts on one CC, supporting self-carrier indication, that is, for multiple CCs, by sending multiple PDCCH skipping signaling (that is, each CC corresponds to a PDCCH skipping signaling), so that the multiple CCs skip the monitoring of the PDCCH based on the corresponding PDCCH skipping signaling. For example, sending a PDCCH skipping signaling in cell #1 can act on cell #1, so that the UE in cell #1 can skip the monitoring of the specified PDCCH on the specified time (such as DRX activation time (on duration timer)) and frequency range based on the PDCCH skipping signaling. For cell #2 and cell #3, the process is similar to that of cell #1, and will not be repeated here.

[0111] In the embodiment of the present application, the first information can be applied to the primary cell or the primary and secondary cells, or can work independently of DRX, so as to save the power consumption of the UE while ensuring the performance of the UE.

[0112] Optionally, in the embodiment of the present application, the above step 203 can be specifically implemented by the following step 203b or step 203c.

[0113] Step 203b: When the UE does not initiate a contention-based random access process, the UE monitors or stops monitoring the target downlink control channel according to the first information.

[0114] Step 203c: When the UE initiates a contention-based random access procedure and receives a random access message scheduled for a downlink control channel scrambled by a specific RNTI, the UE monitors or stops monitoring the target downlink control channel according to the first information.

[0115] Optionally, in an embodiment of the present application, the above-mentioned specific RNTI is any one of the following: C-RNTI, CS-RNTI, TC-RNTI, MCS-C-RNTI.

[0116] Optionally, in the embodiment of the present application, the above step 203c can be replaced by the following step 203d.

[0117] Step 203d: When the UE initiates a contention-based random access procedure and does not receive a random access message (eg, Msg4) scheduled for a downlink control channel scrambled with a specific RNTI, the UE ignores the first information.

[0118] It should be noted that the UE ignoring the first information can be understood as: the UE does not monitor or stop monitoring the target downlink control channel according to the instruction of the first information.

[0119] Optionally, in an embodiment of the present application, when the UE initiates a contention-based random access process and does not receive a random access message scheduled for a downlink control channel encrypted with a specific RNTI, or when the UE initiates a non-contention random access, the UE may not expect to receive a random access message scheduled for a PDCCH encrypted with a specific RNTI on a PDCCH indicated for skipping.

[0120] In the embodiment of the present application, when the UE initiates a contention-based random access process, this solution can protect the random access from being affected by the first information.

[0121] In an embodiment of the present application, more dynamic downlink control channel monitoring, control and adjustment can be achieved in time during one or more continuous or discontinuous short DRX cycles; downlink control channel monitoring, control and adjustment of one or more CCs can be achieved in the frequency domain.

[0122] The embodiment of the present application provides a channel monitoring method, and the UE can monitor or stop monitoring the target downlink control channel according to the first information sent by the network device. When monitoring the downlink control channel, the UE can flexibly monitor the corresponding downlink control channel in time and frequency domain according to the dynamic indication of the network device, thereby avoiding data transmission delay caused by failure to monitor the downlink control channel, thereby saving UE power consumption and improving data transmission performance.

[0123] Optionally, in an embodiment of the present application, after the above step 202, the channel monitoring method provided in the embodiment of the present application further includes the following step 401.

[0124] Step 401: When the cell where the UE is located is a target cell, the UE transmits third information.

[0125] In the embodiment of the present application, the third information includes at least one of the following: first hybrid automatic repeat request-acknowledgement information HARQ-ACK information, second HARQ-ACK information, first channel state information (CSI), second CSI, first scheduling request (SR), second SR. The target cell is any one of the following: a primary cell, a primary and secondary cell, and a secondary cell corresponding to an uplink control channel; the first HARQ-ACK information and the second HARQ-ACK information have different physical layer priorities, the first CSI and the second CSI have different physical layer priorities, and the first SR and the second SR have different physical layer priorities.

[0126] It can be understood that if the PDCCH skipping signaling acts on the primary cell, the primary secondary cell, or the secondary cell corresponding to the uplink control channel, the transmission of some UCI is not affected, such as high-priority HARQ-ACK information, high-priority SR and / or high-priority CSI, or, all-priority HARQ-ACK information (ie, high-priority HARQ-ACK information and low-priority HARQ-ACK information), all-priority SRs (ie, high-priority SRs and low-priority SRs) and / or all-priority CSIs (ie, high-priority CSIs and low-priority CSIs).

[0127] It should be noted that the embodiment of the present application does not limit the execution order of the above steps 401 and 203.

[0128] Optionally, in an embodiment of the present application, after the above step 202, the channel monitoring method provided in the embodiment of the present application further includes the following step 501.

[0129] Step 501: When the UE is configured with fourth information, the UE transmits or does not transmit the fourth information.

[0130] In an embodiment of the present application, the above-mentioned fourth information includes at least one of the following: a first configured grant (CG) uplink data channel, a second CG uplink data channel, a first semi-persistent scheduling (SPS) downlink data channel, a second SPS downlink data channel, a first semi-persistent channel state information (SP-CSI), a second SP-CSI, a first SR, and a second SR; the physical layer priorities of the first CG uplink data channel and the second CG uplink data channel are different, the physical layer priorities of the first SPS downlink data channel and the second SPS downlink data channel are different, the physical layer priorities of the first SP-CSI and the second SP-CSI are different, and the physical layer priorities of the first SR and the second SR are different.

[0131] In the embodiment of the present application, when the UE is configured with the fourth information, the UE may transmit or not transmit the fourth information according to the configuration of the RRC or according to a predefined rule.

[0132] It should be noted that the embodiment of the present application does not limit the execution order of the above steps 501 and 203.

[0133] Optionally, in an embodiment of the present application, after the above step 501, the channel monitoring method provided in the embodiment of the present application further includes the following step 502.

[0134] Step 502: The UE starts a target counter and monitors the retransmitted first downlink control channel during the running time of the target counter.

[0135] In an embodiment of the present application, the above-mentioned target counter is a DRX retransmission counter (DRX-retransmission timer) or a DRX-HARQ round-trip delay timer (DRX-HARQ-RTT-timer); the above-mentioned first downlink control channel is any one of the following: a downlink control channel on any type of search space, a downlink control channel on a second preset type CSS, and other downlink control channels except the target downlink control channel.

[0136] It can be understood that if the UE transmits CG PUSCH and / or SPS PDSCH without PDCCH, the UE can start the uplink and / or downlink target timer, monitor the PDCCH that may be scheduled for retransmission during the target timer running time, and the search space type where the retransmission PDCCH is located is not restricted, or the search space where the retransmission PDCCH is located is a second preset type CSS (e.g., type 0, type 0A, type 1 or type 2) CSS. In addition, the retransmission PDCCH is a PDCCH other than the PDCCH skipped by the PDCCH skipping signaling, or the PDCCH is transmitted in the newly introduced fallback / PDCCH-skipping free PDCCH search space.

[0137] Optionally, in an embodiment of the present application, regardless of whether the UE starts an uplink and / or downlink target timer, during the running time of the target timer, the UE no longer monitors the PDCCH that may schedule retransmission.

[0138] It can be understood that if the UE transmits an SR, the UE monitors the PDCCH, and the search space type where the PDCCH is located is not restricted, or the search space where the retransmitted PDCCH is located is the second preset type CSS. In addition, the retransmitted PDCCH is other PDCCHs except for the PDCCH skipping signaling indicating the PDCCH to skip p, or the PDCCH transmission is in the newly introduced fallback / PDCCH-skipping free PDCCH search space.

[0139] It should be noted that, for the fallback or PDCCH-skipping free PDCCH search space: PDCCH skipping signaling does not act on the PDCCH transmitted in the PDCCH search space, and the search space is a UE-specific search space (UE-specific search space).

[0140] Optionally, in an embodiment of the present application, when the MAC layer timer is started or the MAC layer process causes the UE to be in DRX active time and / or the UE needs to monitor PDCCH, the UE monitors PDCCH in the fallback / PDCCH-skipping free PDCCH search space.

[0141] Optionally, in an embodiment of the present application, if the UE is configured with at least one of the following: periodic channel state information (periodic CSI, P-CSI), SP-CSI, periodic sounding reference signal (periodic-sounding reference signal, P-SRS), semi-persistent sounding reference signal (semi-persistent SRS, SP-SRS), the UE may transmit or not transmit this information (i.e., P-CSI, SP-CSI, P-SRS, SP-SRS) according to the RRC configuration or according to predefined rules.

[0142] Optionally, in an embodiment of the present application, for SSB and CORESET#0 multiplexing mode 3 (multiplexing pattern 3), SSB and PDCCH are frequency division multiplexed, and the UE monitors the PDCCH of type0-PDCCH CSS and the corresponding PDSCH on the SSB symbol to be measured.

[0143] It should be noted that the channel monitoring method provided in the embodiment of the present application can be executed by a UE, or a channel monitoring device, or a control module in the channel monitoring device for executing the loaded channel monitoring method. In the embodiment of the present application, the channel monitoring method provided in the embodiment of the present application is explained by taking the UE executing the loaded channel monitoring method as an example.

[0144] Figure 8 FIG. 2 shows a possible structural diagram of a channel monitoring device involved in an embodiment of the present application. Figure 8 As shown, the channel monitoring device 80 may include: a receiving module 81 and a processing module 82 .

[0145] The receiving module 81 is used to receive first information sent by the network device, the first information is used to indicate the monitoring behavior of the UE on the downlink control channel, and the first information includes at least one of the following: time information and frequency domain information. The processing module 82 is used to monitor or stop monitoring the target downlink control channel according to the first information received by the receiving module 81.

[0146] In a possible implementation, the time information includes at least one of the following: a start time and an application time, the start time is the time to start monitoring or stop monitoring the downlink control channel, and the application time is the duration of monitoring or stopping monitoring the downlink control channel. The frequency domain information includes at least one of the following: a preset number of cells / carrier units, a BWP, a frequency range, a PRB, and a cell group corresponding to the cell.

[0147] In a possible implementation, when the first information is DCI, the above-mentioned start time is any one of the following: the next time unit, the time indicated by DCI, the first time, and the second time. When the first information is MAC CE, the above-mentioned start time is any one of the following: the third time and the fourth time. Among them, the next time unit is the next time unit of the time unit where the DCI is received, the first time is the time determined according to the symbol where the DCI is received, and the second time is the time agreed by the protocol or configured by the high level; the third time is the time after the preset duration of the time slot where the MAC CE is received, and the fourth time is the time determined according to the time slot where the MAC CE is received, the first time slot number and the second time slot number, the first time slot number is the time slot number of the uplink control channel transmission of the downlink data channel feedback confirmation information where the received MAC CE is located, and the second time slot number is the number of time slots occupied by each subframe of the SCS used for uplink control channel transmission.

[0148] In a possible implementation, when the DCI is a WUS, the above-mentioned start time is the next DRX duration indicated by the WUS. When the DCI is used to indicate the switching of the BWP, the above-mentioned start time is the time after the BWP is switched. When the DCI schedules a downlink data channel, the above-mentioned start time is the time determined according to the time slot where the downlink data channel is located and the third time slot number, and the third time slot number is the time slot number where the uplink control channel transmission of the feedback confirmation information of the downlink data channel is located. When the DCI schedules an uplink data channel, the above-mentioned start time is the time determined according to the time slot where the DCI is located and the time slot number where the uplink data channel is scheduled.

[0149] In a possible implementation, the application time is any one of the following: a first duration, a second duration, an end time, a third duration, a target time slot, and a monitoring opportunity. The first duration is the duration of N consecutive or discontinuous short DRX cycles after the time unit where the first information is received, the second duration is the duration of M consecutive or discontinuous long DRX cycles after the time unit where the first information is received, the end time is the time to end monitoring or stop monitoring the downlink control channel, the third duration is the time length for monitoring or stopping monitoring the downlink control channel, the target time slot is the time slot for monitoring or stopping monitoring the downlink control channel, the monitoring opportunity is the opportunity to monitor or stop monitoring the downlink control channel, and N and M are both positive integers.

[0150] In a possible implementation, the processing module 82 is specifically configured to monitor or stop monitoring the target downlink control channel according to the first information when a preset condition is met. The preset condition includes at least one of the following: the cell where the UE is located is a secondary cell, the cell where the UE is located is a secondary cell of a primary cell scheduled across carriers, the frequency corresponding to the cell where the UE is located is within the target frequency range, the UE is in the target state, the UE monitors the downlink control channel according to other monitoring-related information, and the BWP on the carrier unit corresponding to the downlink control channel is in a non-dormant state.

[0151] In a possible implementation manner, the other monitoring-related information includes at least one of the following: DRX cycle-related information, WUS, cross-time slot scheduling indication information, and secondary cell sleep indication information.

[0152] In one possible implementation, the target downlink control channel includes at least one of the following: all downlink control channels on USS, all downlink control channels on a first preset type CSS, downlink control channels on a first preset type CSS except downlink control channels corresponding to a specific DCI format, all downlink control channels on CSS, and a specific downlink control channel.

[0153] In a possible implementation manner, the specific downlink control channel is configured by a higher layer or indicated by the first information.

[0154] In a possible implementation, the first information indicates the second information, and the specific downlink control channel is determined by the second information. The second information includes at least one of the following: a search space set, a DCI format, an aggregation level, a control resource set, an RNTI, and a resource block set.

[0155] In a possible implementation, the target downlink control channel includes at least all downlink control channels on the first preset type CSS. The processing module 82 is also used to monitor the second downlink control channel after the receiving module 81 receives the first information sent by the network device. The second downlink control channel includes at least one of the following: all downlink control channels on other types of CSS, downlink control channels encrypted by RNTI on other types of CSS, downlink control channels other than downlink control channels encrypted by specific RNTI on other types of CSS, and downlink control channels corresponding to specific DCI formats on the first preset type CSS; other types of CSS are CSS other than the first preset type CSS.

[0156] In a possible implementation, the processing module 82 is also used to transmit third information after the receiving module 81 receives the first information sent by the network device, when the cell where the UE is located is the target cell, and the third information includes at least one of the following: first HARQ-ACK information, second HARQ-ACK information, first CSI, second CSI, first SR, and second SR. The target cell is any one of the following: a primary cell, a primary and secondary cell, and a secondary cell corresponding to an uplink control channel; the first HARQ-ACK information and the second HARQ-ACK information have different physical layer priorities, the first CSI and the second CSI have different physical layer priorities, and the first SR and the second SR have different physical layer priorities.

[0157] In a possible implementation, the processing module 82 is also used for, after the receiving module 81 receives the first information sent by the network device, when the UE is configured with the fourth information, the UE transmits or does not transmit the fourth information. The fourth information includes at least one of the following: the first CG uplink data channel, the second CG uplink data channel, the first SPS downlink data channel, the second SPS downlink data channel, the first SP-CSI, the second SP-CSI, the first SR, and the second SR; the first CG uplink data channel and the second CG uplink data channel have different physical layer priorities, the first SPS downlink data channel and the second SPS downlink data channel have different physical layer priorities, the first SP-CSI and the second SP-CSI have different physical layer priorities, and the first SR and the second SR have different physical layer priorities.

[0158] In a possible implementation, the processing module 82 is further configured to start a target counter after transmitting or not transmitting the fourth information, and monitor the retransmitted first downlink control channel during the operation time of the target counter. The target counter is a DRX retransmission counter or a DRX-HARQ round trip delay timer; the first downlink control channel is any one of the following: a downlink control channel on any type of search space, a downlink control channel on a second preset type CSS, or other downlink control channels except the target downlink control channel.

[0159] In one possible implementation, the above-mentioned processing module 82 is specifically used to monitor or stop monitoring the target downlink control channel according to the first information when the UE does not initiate a contention-based random access process; or, when the UE initiates a contention-based random access process and receives a random access message scheduled for a downlink control channel encrypted with a specific RNTI, monitor or stop monitoring the target downlink control channel according to the first information.

[0160] In a possible implementation, the processing module 82 is further configured to ignore the first information when the UE initiates a contention-based random access procedure and does not receive a random access message scheduled by a downlink control channel scrambled by a specific RNTI.

[0161] The channel monitoring device provided in the embodiment of the present application can implement each process implemented by the UE in the above method embodiment. To avoid repetition, the detailed description will not be repeated here.

[0162] An embodiment of the present application provides a channel monitoring device. When monitoring a downlink control channel, the UE can flexibly monitor the corresponding downlink control channel in time and frequency domain according to the dynamic indication of the network device, thereby avoiding failure to monitor the downlink control channel and causing data transmission delays, thereby saving UE power consumption and improving data transmission performance.

[0163] The channel monitoring device in the embodiment of the present application can be a device, or a component, integrated circuit, or chip in a terminal. The device can be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc. The non-mobile electronic device can be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0164] The channel monitoring device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0165] The channel monitoring device provided in the embodiment of the present application can implement each process implemented by the UE in the above method embodiment, and will not be described again here to avoid repetition.

[0166] Alternatively, if Fig. 9As shown, an embodiment of the present application also provides a UE 90, including a processor 91, a memory 92, and a program or instruction stored in the memory 92 and executable on the processor 91. When the program or instruction is executed by the processor 91, each process of the above-mentioned method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0167] It should be noted that the UE in the embodiments of the present application includes the mobile electronic device and the non-mobile electronic device mentioned above.

[0168] Fig.10 A schematic diagram of the hardware structure of a UE for implementing an embodiment of the present application.

[0169] The UE 100 includes but is not limited to components such as a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 110.

[0170] Those skilled in the art will appreciate that UE 100 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to processor 110 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.10 The UE structure shown in the figure does not constitute a limitation on the UE. The UE may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0171] The radio frequency unit 101 is used to receive first information sent by a network device, where the first information is used to indicate the monitoring behavior of the UE on the downlink control channel, and the first information includes at least one of the following: time information and frequency domain information.

[0172] The processor 110 is configured to monitor or stop monitoring a target downlink control channel according to the first information.

[0173] An embodiment of the present application provides a UE. When monitoring a downlink control channel, the UE can flexibly monitor the corresponding downlink control channel in time and frequency domain according to the dynamic indication of a network device, thereby avoiding data transmission delay caused by failure to monitor the downlink control channel, thereby saving UE power consumption and improving data transmission performance.

[0174] It should be understood that in the embodiment of the present application, the input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Other input devices 1072 may include but are not limited to a physical keyboard, a function key (such as a volume control button, a switch button, etc.), a trackball, a mouse, and a joystick, which will not be repeated here. The memory 109 can be used to store software programs and various data, including but not limited to applications and operating systems. The processor 110 can integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, the user interface, and the application program, etc., and the modem processor mainly processes wireless communication. It is understandable that the above-mentioned modem processor may not be integrated into the processor 110.

[0175] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0176] The processor is the processor in the UE described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0177] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0178] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0179] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0180] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0181] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A channel monitoring method, characterized in that: The method comprises: The user equipment UE receives first information sent by the network device, where the first information is used to indicate a monitoring behavior of the UE on a downlink control channel, and the first information includes at least one of the following: time information and frequency domain information; The UE monitors or stops monitoring a target downlink control channel according to the first information; The method further comprises: In a case where the UE initiates a contention-based random access procedure and does not receive a random access message scheduled for a downlink control channel scrambled by using a specific RNTI, the UE ignores the first information; The time information includes: a start time; the start time is the time to start monitoring or stop monitoring the downlink control channel; the first information is downlink control information DCI; In the case where the DCI is a wake-up signal WUS, the start time is the next discontinuous reception DRX duration indicated by the WUS; In the case where the DCI is used to indicate switching of the BWP, the start time is the time after the BWP is switched; In the case where the DCI schedules a downlink data channel, the start time is a time determined according to a time slot where the downlink data channel is located and a third time slot number, and the third time slot number is a time slot number where an uplink control channel transmission of feedback confirmation information for the downlink data channel is located; In the case where the DCI schedules an uplink data channel, the start time is a time determined according to the time slot where the DCI is located and the number of the time slot where the uplink data channel is scheduled.

2. The method according to claim 1, characterized in that The time information also includes: application time, where the application time is the duration of monitoring or stopping monitoring the downlink control channel; The frequency domain information includes at least one of the following: a preset number of cells / carrier units, a bandwidth part BWP, a frequency range, a physical resource block PRB, and a cell group corresponding to the cell.

3. The method according to claim 1, characterized in that In the case where the first information is DCI, the start time is any one of the following: the next time unit, the time indicated by the DCI, the first time, and the second time; In the case where the first information is a media access control layer control element MAC CE, the start time is any one of the following: a third time and a fourth time; Among them, the next time unit is the next time unit of the time unit where the DCI is received, the first time is the time determined according to the symbol where the DCI is received, and the second time is agreed upon by the protocol or configured by the high level; the third time is the time after the preset duration of the time slot where the MAC CE is received, and the fourth time is the time determined according to the time slot where the MAC CE is received, the first time slot number and the second time slot number, the first time slot number is the time slot number of the uplink control channel transmission for feedback confirmation information of the downlink data channel where the received MAC CE is located, and the second time slot number is the number of time slots occupied by each subframe of the subcarrier spacing SCS used for the uplink control channel transmission.

4. The method according to claim 2, characterized in that: The application time is any one of the following: first duration, second duration, end time, third duration, target time slot and monitoring opportunity; Among them, the first duration is the duration of N consecutive or discontinuous short DRX cycles after the time unit where the first information is received, the second duration is the duration of M consecutive or discontinuous long DRX cycles after the time unit where the first information is received, the end time is the time to end monitoring or stop monitoring the downlink control channel, the third duration is the time length for monitoring or stopping monitoring the downlink control channel, the target time slot is the time slot for monitoring or stopping monitoring the downlink control channel, the monitoring timing is the timing for monitoring or stopping monitoring the downlink control channel, and N and M are both positive integers.

5. The method according to claim 1, characterized in that The UE monitoring or stopping monitoring a target downlink control channel according to the first information includes: When a preset condition is met, the UE monitors or stops monitoring the target downlink control channel according to the first information; Among them, the preset conditions include at least one of the following: the cell where the UE is located is a secondary cell, the cell where the UE is located is a secondary cell of a main cell scheduled across carriers, the frequency corresponding to the cell where the UE is located is within the target frequency range, the UE is in the target state, the UE monitors the downlink control channel according to other monitoring-related information, and the BWP on the carrier unit corresponding to the downlink control channel is in a non-sleep state.

6. The method according to claim 5, characterized in that The other monitoring related information includes at least one of the following: DRX cycle related information, WUS, cross-time slot scheduling indication information, and secondary cell sleep indication information.

7. The method according to claim 1, characterized in that The target downlink control channel includes at least one of the following: all downlink control channels on a specific search space USS, all downlink control channels on a first preset type common search space CSS, downlink control channels on the first preset type CSS except for downlink control channels corresponding to a specific DCI format, all downlink control channels on CSS, and a specific downlink control channel.

8. The method according to claim 7, characterized in that The specific downlink control channel is configured by a higher layer or indicated by the first information.

9. The method according to claim 8, characterized in that The first information indicates second information, and the specific downlink control channel is determined by the second information; The second information includes at least one of the following: a search space set, a DCI format, an aggregation level, a control resource set, a radio network temporary identifier RNTI, and a resource block set.

10. The method according to claim 7, characterized in that The target downlink control channel includes at least all downlink control channels on the first preset type CSS; After the UE receives the first information sent by the network device, the method further includes: The UE monitors a second downlink control channel; Among them, the second downlink control channel includes at least one of the following items: all downlink control channels on other types of CSS, downlink control channels scrambled by RNTI on the other types of CSS, downlink control channels on the other types of CSS except downlink control channels scrambled by specific RNTI, and downlink control channels corresponding to specific DCI formats on the first preset type CSS; the other types of CSS are CSS other than the first preset type CSS.

11. The method according to claim 1, characterized in that: After the UE receives the first information sent by the network device, the method further includes: In a case where the cell where the UE is located is a target cell, the UE transmits third information, where the third information includes at least one of the following: first hybrid automatic repeat request-acknowledgement information HARQ-ACK information, second HARQ-ACK information, first channel state information CSI, second CSI, first scheduling request SR, and second SR; Among them, the target cell is any one of the following: a primary cell, a primary secondary cell, and a secondary cell corresponding to an uplink control channel; the physical layer priorities of the first HARQ-ACK information and the second HARQ-ACK information are different, the physical layer priorities of the first CSI and the second CSI are different, and the physical layer priorities of the first SR and the second SR are different.

12. The method according to claim 1, characterized in that After the UE receives the first information sent by the network device, the method further includes: In a case where the UE is configured with fourth information, the UE transmits or does not transmit the fourth information; Among them, the fourth information includes at least one of the following: a first configured authorized CG uplink data channel, a second CG uplink data channel, a first semi-static scheduling SPS downlink data channel, a second SPS downlink data channel, a first semi-static channel state information SP-CSI, a second SP-CSI, a first SR, and a second SR; the physical layer priorities of the first CG uplink data channel and the second CG uplink data channel are different, the physical layer priorities of the first SPS downlink data channel and the second SPS downlink data channel are different, the physical layer priorities of the first SP-CSI and the second SP-CSI are different, and the physical layer priorities of the first SR and the second SR are different.

13. The method according to claim 12, characterized in that After the UE transmits or does not transmit the fourth information, the method further includes: The UE starts a target counter and monitors the retransmitted first downlink control channel within the running time of the target counter; The target counter is a DRX retransmission counter or a DRX-HARQ round-trip delay timer; the first downlink control channel is any one of the following: a downlink control channel on any type of search space, a downlink control channel on a second preset type CSS, or other downlink control channels except the target downlink control channel.

14. The method according to claim 1, characterized in that The UE monitoring or stopping monitoring a target downlink control channel according to the first information includes: In a case where the UE does not initiate a contention-based random access process, the UE monitors or stops monitoring a target downlink control channel according to the first information; or, In a case where the UE initiates a contention-based random access procedure and receives a random access message scheduled for a downlink control channel scrambled by a specific RNTI, the UE monitors or stops monitoring a target downlink control channel according to the first information.

15. A channel monitoring device, characterized in that: The channel monitoring device comprises: a receiving module and a processing module; The receiving module is used to receive first information sent by the network device, where the first information is used to indicate the monitoring behavior of the UE on the downlink control channel, and the first information includes at least one of the following: time information and frequency domain information; The processing module is used to monitor or stop monitoring the target downlink control channel according to the first information received by the receiving module; The processing module is further configured to ignore the first information when the UE initiates a contention-based random access process and does not receive a random access message scheduled by a downlink control channel scrambled by a specific RNTI; The time information includes: a start time; the start time is the time to start monitoring or stop monitoring the downlink control channel; the first information is downlink control information DCI; In the case where the DCI is a wake-up signal WUS, the start time is the next discontinuous reception DRX duration indicated by the WUS; In the case where the DCI is used to indicate switching of the BWP, the start time is the time after the BWP is switched; In the case where the DCI schedules a downlink data channel, the start time is a time determined according to a time slot where the downlink data channel is located and a third time slot number, and the third time slot number is a time slot number where an uplink control channel transmission of feedback confirmation information for the downlink data channel is located; In the case where the DCI schedules an uplink data channel, the start time is a time determined according to the time slot where the DCI is located and the number of the time slot where the uplink data channel is scheduled.

16. The device according to claim 15, characterized in that The time information also includes: application time, where the application time is the duration of monitoring or stopping monitoring the downlink control channel; The frequency domain information includes at least one of the following: a preset number of cells / carrier units, a bandwidth part BWP, a frequency range, a physical resource block PRB, and a cell group corresponding to the cell.

17. The device according to claim 15, characterized in that In the case where the first information is DCI, the start time is any one of the following: the next time unit, the time indicated by the DCI, the first time, and the second time; In the case where the first information is a media access control layer control element MAC CE, the start time is any one of the following: a third time and a fourth time; Among them, the next time unit is the next time unit of the time unit where the DCI is received, the first time is the time determined according to the symbol where the DCI is received, and the second time is agreed upon by the protocol or configured by the high level; the third time is the time after the preset duration of the time slot where the MAC CE is received, and the fourth time is the time determined according to the time slot where the MAC CE is received, the first time slot number and the second time slot number, the first time slot number is the time slot number of the uplink control channel transmission for feedback confirmation information of the downlink data channel where the received MAC CE is located, and the second time slot number is the number of time slots occupied by each subframe of the subcarrier spacing SCS used for the uplink control channel transmission.

18. The device according to claim 16, characterized in that The application time is any one of the following: first duration, second duration, end time, third duration, target time slot and monitoring opportunity; Among them, the first duration is the duration of N consecutive or discontinuous short DRX cycles after the time unit where the first information is received, the second duration is the duration of M consecutive or discontinuous long DRX cycles after the time unit where the first information is received, the end time is the time to end monitoring or stop monitoring the downlink control channel, the third duration is the time length for monitoring or stopping monitoring the downlink control channel, the target time slot is the time slot for monitoring or stopping monitoring the downlink control channel, the monitoring timing is the timing for monitoring or stopping monitoring the downlink control channel, and N and M are both positive integers.

19. The device according to claim 15, characterized in that The processing module is specifically configured to monitor or stop monitoring the target downlink control channel according to the first information when a preset condition is met; Among them, the preset conditions include at least one of the following: the cell where the UE is located is a secondary cell, the cell where the UE is located is a secondary cell of a main cell scheduled across carriers, the frequency corresponding to the cell where the UE is located is within the target frequency range, the UE is in the target state, the UE monitors the downlink control channel according to other monitoring-related information, and the BWP on the carrier unit corresponding to the downlink control channel is in a non-sleep state.

20. The device according to claim 19, characterized in that The other monitoring related information includes at least one of the following: DRX cycle related information, WUS, cross-time slot scheduling indication information, and secondary cell sleep indication information.

21. The device according to claim 15, characterized in that The target downlink control channel includes at least one of the following: all downlink control channels on a specific search space USS, all downlink control channels on a first preset type common search space CSS, downlink control channels on the first preset type CSS except for downlink control channels corresponding to a specific DCI format, all downlink control channels on CSS, and a specific downlink control channel.

22. The device according to claim 21, characterized in that The specific downlink control channel is configured by a higher layer or indicated by the first information.

23. The device according to claim 22, characterized in that The first information indicates second information, and the specific downlink control channel is determined by the second information; The second information includes at least one of the following: a search space set, a DCI format, an aggregation level, a control resource set, a radio network temporary identifier RNTI, and a resource block set.

24. The device according to claim 21, characterized in that The target downlink control channel includes at least all downlink control channels on the first preset type CSS; The processing module is further configured to monitor the second downlink control channel after the receiving module receives the first information sent by the network device; Among them, the second downlink control channel includes at least one of the following items: all downlink control channels on other types of CSS, downlink control channels scrambled by RNTI on the other types of CSS, downlink control channels on the other types of CSS except downlink control channels scrambled by specific RNTI, and downlink control channels corresponding to specific DCI formats on the first preset type CSS; the other types of CSS are CSS other than the first preset type CSS.

25. The device according to claim 15, characterized in that The processing module is further configured to transmit third information, after the receiving module receives the first information sent by the network device, when the cell where the UE is located is the target cell, wherein the third information includes at least one of the following: first hybrid automatic repeat request-acknowledgement information HARQ-ACK information, second HARQ-ACK information, first channel state information CSI, second CSI, first scheduling request SR, and second SR; Among them, the target cell is any one of the following: a primary cell, a primary secondary cell, and a secondary cell corresponding to an uplink control channel; the physical layer priorities of the first HARQ-ACK information and the second HARQ-ACK information are different, the physical layer priorities of the first CSI and the second CSI are different, and the physical layer priorities of the first SR and the second SR are different.

26. The device according to claim 15, characterized in that The processing module is further configured to, after the receiving module receives the first information sent by the network device, if the UE is configured with fourth information, cause the UE to transmit or not transmit the fourth information; Among them, the fourth information includes at least one of the following: a first configured authorized CG uplink data channel, a second CG uplink data channel, a first semi-static scheduling SPS downlink data channel, a second SPS downlink data channel, a first semi-static channel state information SP-CSI, a second SP-CSI, a first SR, and a second SR; the physical layer priorities of the first CG uplink data channel and the second CG uplink data channel are different, the physical layer priorities of the first SPS downlink data channel and the second SPS downlink data channel are different, the physical layer priorities of the first SP-CSI and the second SP-CSI are different, and the physical layer priorities of the first SR and the second SR are different.

27. The device according to claim 26, characterized in that The processing module is further used to start a target counter after transmitting or not transmitting the fourth information, and monitor the retransmitted first downlink control channel within the running time of the target counter; The target counter is a DRX retransmission counter or a DRX-HARQ round-trip delay timer; the first downlink control channel is any one of the following: a downlink control channel on any type of search space, a downlink control channel on a second preset type CSS, or other downlink control channels except the target downlink control channel.

28. The device according to claim 15, characterized in that The processing module is specifically used to monitor or stop monitoring the target downlink control channel according to the first information when the UE does not initiate a contention-based random access process; or to monitor or stop monitoring the target downlink control channel according to the first information when the UE initiates a contention-based random access process and receives a random access message scheduled for a downlink control channel encrypted with a specific RNTI.

29. A user equipment UE, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the channel monitoring method according to any one of claims 1 to 14.

30. A readable storage medium, characterized in that: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by the processor, the steps of the channel monitoring method according to any one of claims 1 to 14 are implemented.

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