Channel monitoring, transmission methods, terminals and network-side equipment
By listening to the first PDCCH opportunity and acting on the DCI instruction, the problem of not being able to stop the repeated transmission of PUSCH in advance in the existing technology is solved, thus improving resource utilization.
Patent Information
- Application Number
- CN202010610054.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-06-29
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2040-12-17
AI Technical Summary
The lack of existing technologies for early stopping of dynamically scheduled PUSCH repetitive transmissions leads to resource waste and increased system interference.
By determining the listening opportunity of the first PDCCH and listening under preset conditions, the first DCI indicates whether to stop the repeated transmission of PUSCH scheduled by the second PDCCH.
This achieves early cessation of dynamically scheduled PUSCH retransmissions, improving resource utilization.
Smart Images

Figure CN113939036B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of communication technology, and in particular to a channel monitoring, transmission method, terminal, and network-side device. Background Technology
[0002] Related technologies support repeated transmission of the Physical Uplink Shared Channel (PUSCH). After the User Equipment (UE) transmits a portion of the repeated PUSCH, the network may have already correctly received the UE's PUSCH transmission, and subsequent transmissions can be stopped to save resources and reduce system interference, thereby improving coverage. However, there is currently no solution in related technologies for how to stop dynamically scheduled repeated PUSCH transmissions in advance. Summary of the Invention
[0003] The purpose of this application is to provide a channel monitoring, transmission method, terminal, and network-side device that can solve the problem of how to stop the repeated transmission of dynamically scheduled PUSCH in advance.
[0004] To solve the above-mentioned technical problems, this application is implemented as follows:
[0005] Firstly, a channel monitoring method is provided for use in a terminal, the method comprising:
[0006] Determine the opportunity to monitor the first physical downlink control channel (PDCCH);
[0007] Under the condition that the first preset condition is met, the first PDCCH is monitored during the monitoring opportunity;
[0008] The first downlink control information (DCI) in the first PDCCH is used to indicate whether to stop the repeated transmission of the Physical Uplink Shared Channel (PUSCH) scheduled by the second PDCCH.
[0009] Secondly, a channel monitoring device is provided for use in a terminal, including:
[0010] The first determining module is used to determine the listening opportunity of the first physical downlink control channel (PDCCH).
[0011] A monitoring module is used to monitor the first PDCCH during the monitoring opportunity when a first preset condition is met.
[0012] The first downlink control information (DCI) in the first PDCCH is used to indicate whether to stop the repeated transmission of the Physical Uplink Shared Channel (PUSCH) scheduled by the second PDCCH.
[0013] Thirdly, a channel transmission method is provided, applied to a network-side device, the method comprising:
[0014] Send a first PDCCH, in which a first DCI is used to indicate whether to stop the repeated transmission of PUSCH scheduled by the second PDCCH.
[0015] Fourthly, a channel transmission device is provided, applied to network-side equipment, comprising:
[0016] The first sending module is used to send a first PDCCH, wherein the first DCI in the first PDCCH is used to indicate whether to stop the repeated transmission of PUSCH scheduled by the second PDCCH.
[0017] Fifthly, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect.
[0018] In a sixth aspect, a network-side device is provided, the network-side device including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the third aspect.
[0019] In a seventh aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the third aspect.
[0020] Eighthly, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run network-side device programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the third aspect.
[0021] In this embodiment of the application, a listening opportunity for the first PDCCH is determined. Under the condition that the first preset condition is met, the first PDCCH is listened to during the listening opportunity. Then, according to the instruction of the first DCI, the repeated transmission of PUSCH scheduled by the second PDCCH can be stopped in advance, thereby achieving the purpose of stopping the repeated transmission of dynamically scheduled PUSCH in advance, and thus improving resource utilization. Attached Figure Description
[0022] Figure 1 This is a structural diagram of a network system applicable to the embodiments of this application;
[0023] Figure 2A flowchart illustrating the channel monitoring method according to an embodiment of this application;
[0024] Figure 3 A flowchart illustrating a channel transmission method according to an embodiment of this application;
[0025] Figure 4 A schematic diagram of the modules of a channel monitoring device according to an embodiment of this application;
[0026] Figure 5 A structural block diagram illustrating a communication device according to an embodiment of this application;
[0027] Figure 6 A structural block diagram illustrating the terminal in an embodiment of this application;
[0028] Figure 7 A schematic diagram of a channel transmission apparatus according to an embodiment of this application;
[0029] Figure 8 This is a structural block diagram illustrating the network-side device according to an embodiment of this application. Detailed Implementation
[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0031] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0032] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, 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 this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. However, the following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description, although these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.
[0033] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or user equipment (UE). The terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include wristbands, headphones, glasses, etc. It should be noted that this application does not limit the specific type of terminal 11. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this embodiment of the application, only the base station in the NR system is used as an example, but the specific type of base station is not limited.
[0034] The channel monitoring method and channel transmission method provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.
[0035] like Figure 2 As shown in the figure, this application provides a channel monitoring method applied to a terminal, the method comprising:
[0036] Step 201: Determine the opportunity to monitor the first physical downlink control channel (PDCCH).
[0037] The first downlink control information (DCI) in the first PDCCH is used to indicate whether to stop the repeated transmission of the Physical Uplink Shared Channel (PUSCH) scheduled by the second PDCCH.
[0038] Here, the PUSCH repetition scheduled by the second PDCCH can also be represented as dynamic PUSCH repetition. The aforementioned PUSCH repetition can be Type A, meaning it's performed using slot aggregation, where the UE uses the same symbol for each symbol in multiple slots to transmit the repetitive PUSCH. Alternatively, it can be Type B, where the indication information from the first PDCCH can be used to stop either nominal or actual repetition. A single nominal repetition can be divided into multiple actual PUSCH repetitions. In other words, the granularity of early termination can be either nominal or actual repetition.
[0039] As an optional implementation, the first PDCCH mentioned above can be a group common PDCCH (GC-PDCCH). The GC-PDCCH can be a PDCCH scrambled with a specific Radio Network Temporary Identifier (RNTI), such as Early Stop RNTI (ET-RNTI). The network configures the UE with a specific field in the GC-PDCCH to indicate whether the UE stops PUSCH retransmission.
[0040] The bits in the fields of this GC-PDCCH can correspond to the number of codewords or code block groups (CBGs) in the PUSCH, and are used to indicate whether the corresponding transport block TB or CBG in the PUSCH has stopped transmitting.
[0041] Alternatively, the GC-PDCCH transmission cancellation indication is used to indicate the cessation of transmission on pre-configured physical resource blocks (PRBs) and symbols. If the UE receives this indication, it will cancel the PUSCH transmission on a portion of the resources.
[0042] The above function (indicating whether to stop PUSCH repetitive transmission via the first PDCCH) can be configured by higher-layer signaling. If the higher-layer signaling configures the UE to enable the deletion function, the UE will perform the above operation after receiving the PDCCH of the DCI indicating the transmission cancellation.
[0043] As an alternative implementation, the first PDCCH is a UE-specific PDCCH, which is used to instruct the UE to prematurely terminate the repeated transmission of PUSCH. The UE-specific PDCCH contains at least one of the following indication information:
[0044] In the first DCI format, the frequency domain resource allocation FDRA field is either all 0s or all 1s;
[0045] The bits of the target information field are used to instruct the UE to stop repeated PUSCH transmissions. The target information is the Time Domain Resource Allocation (TDRA), HARQ process number, MCS level, or Downlink Assignment Index (DAI).
[0046] If the UE detects a scheduling DCI that instructs the UE to perform other uplink transmissions (PRACH, PUCCH, SRS, PUSCH) or downlink receptions (PDSCH, CSI-RS) on resources that overlap with PUSCH, then the UE stops some PUSCH transmissions.
[0047] The above function can be enabled or disabled by higher-layer signaling configuration. If the higher-layer signaling configuration enables the deletion function for the UE, the UE will perform the above operation after receiving the scheduling PDCCH. This PDCCH can be the PDCCH in the Common Search Space (CSS) or the PDCCH in the UE-Specific Search Space (USS).
[0048] If each repeated transmission of a PUSCH uses a different spatial transmission filter (Tx), and thus a different transmission filter corresponding to the SRS, the PUSCH transmission can correspond to different transmission beam directions. Since the performance of some beams may be poor, the network can instruct the UE to stop the repeated transmission of some PUSCHs with the same SRS spatial transmission filter.
[0049] The first PDCCH can indicate a Sound Reference Signal Resource Index (SRI), stopping the repeated transmission of PUSCHs using the same SRS transmit filter corresponding to that SRI. If the first PDCCH does not indicate an SRI, then PUSCHs transmitted using the same transmit filter continue to be transmitted.
[0050] Preferably, after receiving the first PDCCH, the UE needs to meet a preset processing time requirement, that is, stop PUSCH retransmission after a preset time period following a target time. The preset time is the time following the target time, where the target time is the time corresponding to the end symbol or time slot of the first PDCCH, and the preset time period is the time corresponding to L symbols or time slots. Step 202: Under the condition of meeting the first preset condition, listen to the first PDCCH during the listening opportunity.
[0051] Optionally, if the first preset condition is met, the UE will listen to the first PDCCH after detecting the second PDCCH, that is, the listening of the first PDCCH is triggered by the second PDCCH.
[0052] The channel monitoring method of this application determines a monitoring opportunity for a first PDCCH. Under the condition of satisfying a first preset condition, the first PDCCH is monitored during the monitoring opportunity. Then, according to the instruction of the first DCI, the repeated transmission of PUSCH scheduled by the second PDCCH can be stopped in advance, thereby achieving the purpose of stopping the repeated transmission of dynamically scheduled PUSCH in advance, and thus improving resource utilization.
[0053] Optionally, determining the listening opportunity for the first physical downlink control channel (PDCCH) includes:
[0054] Based on the search space set (SS Set), the first PDCCH listening opportunity is determined. The search space set is indicated by the network device, or the search space set is indicated by the second PDCCH. For example, the second PDCCH indicates the index of the search space set. The terminal determines the corresponding search space set based on the index and determines the determined search space set as the first PDCCH listening opportunity.
[0055] Alternatively, the listening opportunity for the first PDCCH can be determined based on the second PDCCH.
[0056] Optionally, the listening opportunity for the first PDCCH is determined based on the time resource corresponding to the second PDCCH. For example, the time resource whose time interval with the time resource corresponding to the second PDCCH is greater than a first preset time T is determined as the time resource corresponding to the listening opportunity of the first PDCCH. That is, the time interval between the time resource corresponding to the listening opportunity of the first PDCCH and the time resource corresponding to the first PDCCH is greater than or equal to the first preset time T.
[0057] Here, the aforementioned first preset time may include at least one time unit, which may be a subframe, a time slot, or a symbol. The aforementioned first preset time may be configured by the network device.
[0058] Optionally, the first preset condition mentioned above includes at least one of the following:
[0059] The PUSCH retransmission has been completed N times, where 0 < N < M, M is the number of PUSCH retransmissions scheduled by the second PDCCH, and N is a positive integer; that is, if the UE has not completed enough transmissions, the transmission performance is considered to be unreliable, and terminal transmission is not considered.
[0060] The priority of PUSCH is either a preset priority or a priority configured for the network device. The preset priority can be high priority and / or low priority.
[0061] The second PDCCH instruction is to listen to the first PDCCH;
[0062] The time interval between the time resource corresponding to the first PDCCH listening opportunity and the time resource corresponding to the second PDCCH is greater than or equal to a first preset time.
[0063] Further optionally, M is configured for the network device or indicated by a second PDCCH;
[0064] The N is configured by the network device, indicated by the second PDCCH, or determined based on the scheduling information of the repeated transmission of the PUSCH.
[0065] Here, the scheduling information is the modulation and coding scheme (MCS) level, or the scheduling information is the PUSCH priority.
[0066] For example, when N is determined based on the MCS level, the value of N is larger for PUSCH transmissions with high MCS and smaller for PUSCH transmissions with low MCS.
[0067] For example, when N is determined based on the priority of PUSCH, the value of N is different for PUSCH transmissions of different priorities. For high-priority PUSCH transmissions, the value of N is larger, and for low-priority PUSCH transmissions, the value of N is smaller.
[0068] Optionally, the effective time of the first downlink control information is determined based on a second time that follows the first time.
[0069] Wherein, the first time is the time to complete N PUSCH transmissions, and the time interval between the second time and the first time is a second preset time. The second preset time is a time period.
[0070] Here, within a second preset time period after N transmissions are completed, the UE does not expect to detect the first PDCCH.
[0071] It should be noted that in this embodiment of the application, M is greater than or equal to a preset transmission count threshold M_TH, and the preset transmission count threshold is configured by the network or predefined.
[0072] In this embodiment, the listening opportunity for the first PDCCH can be determined implicitly. For example, if the time interval between the listening opportunity and the second PDCCH is greater than or equal to T, the first PDCCH is listened to in the first time slot when the condition is met (i.e., the first preset condition only includes the time interval between the time resource corresponding to the listening opportunity of the first PDCCH and the time resource corresponding to the second PDCCH being greater than or equal to the first preset time). Alternatively, if the time interval between the listening opportunity of the first PDCCH and the second PDCCH is greater than or equal to T, and the conditions are met that the PUSCH retransmission has been completed N times, the PUSCH priority is a preset priority or a priority configured by the network device, and / or the second PDCCH indicates that the first PDCCH should be listened to, then the first PDCCH is listened to in the first time slot. The symbol corresponding to the PDCCH listening opportunity in the first time slot is a downlink symbol or a flexible symbol. The parameters that the PDCCH listens on in the first time slot can be predefined, such as using the parameters of the default CORESET (e.g., resource configuration, REG bundle size, interleaver size, aggregation level, DCI payload size, etc.).
[0073] The opportunity to listen to the first PDCCH can also be determined explicitly, i.e., by indicating in the second PDCCH that the first PDCCH will be listened to in the first SS set. Preferably, the UE will only listen to the first PDCCH in the first SS set if it detects that the second PDCCH instructs the UE to perform a PUSCH retransmission; otherwise, it will not listen to the first PDCCH. The listening in the first SS set can be effective for a period of time, such as the time period T1 to T2 after the second PDCCH. Alternatively, after the UE detects the second PDCCH at time T1, it can start a timer, for example, a timer of 10ms, and start counting down. Before the timer expires, the UE will listen to the first PDCCH in the first SS set according to the network configuration.
[0074] The second PDCCH can instruct the UE to listen to the first PDCCH, or instruct the UE not to listen to the first PDCCH, meaning the UE needs to complete the remaining unfinished duplicate PUSCH transmissions.
[0075] Optionally, listening to the first PDCCH during the listening opportunity includes:
[0076] The listening opportunities are periodically monitored;
[0077] Alternatively, during a preset time period after detecting repeated transmission of PUSCH scheduled by the second PDCCH, the first PDCCH may be monitored within the monitoring opportunity.
[0078] Alternatively, after detecting the second PDCCH, the first PDCCH can be monitored during the listening opportunity.
[0079] For example, if the aforementioned listening opportunity is a PDCCH listening opportunity indicated by the search space set configured by the network device, then the terminal will periodically listen to the search space set, or listen after detecting repeated transmission of PUSCH scheduled by the second PDCCH, preferably listening within a preset time period after detecting repeated transmission of PUSCH scheduled by the second PDCCH.
[0080] Optionally, after listening to the first PDCCH during the listening opportunity, the method further includes:
[0081] If the first DCI instruction is received to stop the repeated transmission of PUSCH scheduled by the second PDCCH, the repeated transmission of PUSCH corresponding to the first transmission resource is stopped. The first transmission resource is the transmission resource located after the second transmission resource. The second transmission resource is the resource located L time units after the first PDCCH, where L is a positive integer.
[0082] This time unit can be a symbol, a time slot, or a subframe. The repeated transmission of PUSCH within the resources corresponding to the above L time units does not stop. L time units are set to reserve a certain processing time. For example, if, under certain processing time conditions, during the time period T1 to T2 after the second PDCCH, there is no time slot or PDCCH listening opportunity that meets the above conditions during this period, the UE will not listen to the PDCCH; that is, the UE will continue to complete the remaining repeated transmission of PUSCH.
[0083] Optionally, after determining the listening opportunity of the first physical downlink control channel (PDCCH), the method further includes:
[0084] If the second preset condition is met, the listening of the first PDCCH during the listening opportunity is abandoned.
[0085] Further optionally, the second preset condition includes at least one of the following:
[0086] The second downlink control information, for example, is control information transmitted in DCI format 2-0, indicating that the symbol listening to the first PDCCH is a flexible symbol or an uplink symbol;
[0087] On the time resource corresponding to the first PDCCH listening opportunity, the terminal needs to listen to the PDCCH on the first control resource set CORESET. The quasi-co-address QCL attribute of the first CORESET is different from the QCL attribute of the first PDCCH CORESET.
[0088] The opportunity to listen to the first PDCCH overlaps with the opportunity to listen to the PDCCH scrambled with Random Access-Temporary Radio Network Identifier RA-RNTI, Temporary Cell-Temporary Radio Network Identifier TC-RNTI, or Message B-Temporary Cell Radio Network Identifier MSGB-RNTI.
[0089] The listening opportunity of the first PDCCH overlaps with the measurement resources of the synchronization signal block SSB;
[0090] The first PDCCH listening opportunity overlaps with the measurement resources of the Channel State Information Reference Signal (CSI-RS).
[0091] The first PDCCH will be monitored during the measurement interval;
[0092] The primary resource allocation for the first service cell is uplink transmission.
[0093] The primary resource for the first service area is uplink resources;
[0094] The terminal completes K repeated transmissions of PUSCH, where K is less than M. Optionally, the terminal completes K repeated transmissions of PUSCH before the second time mentioned above.
[0095] Wherein, the first time resource refers to the time resource of the first serving cell that is the same as or overlaps with the monitoring resource of the first PDCCH; the first serving cell is a cell different from the second serving cell, and the second serving cell is the cell where the monitoring opportunity of the first PDCCH is located.
[0096] Optionally, K is greater than or equal to N. That is, in this embodiment of the application, if most of the PUSCH retransmission has been completed and the remaining transmission count is relatively small, the benefits of stopping the remaining PUSCH retransmission are limited, then the UE will no longer listen to the first PDCCH and will continue to complete the retransmission of the remaining PUSCH.
[0097] Optionally, after abandoning the listening of the first PDCCH during the listening opportunity, the method further includes:
[0098] PUSCH is repeatedly transmitted according to the network configuration or as instructed by the second PDCCH.
[0099] The channel monitoring method of this application determines a monitoring opportunity for a first PDCCH. Under the condition of satisfying a first preset condition, the first PDCCH is monitored during the monitoring opportunity. Then, according to the instruction of the first DCI, the repeated transmission of PUSCH scheduled by the second PDCCH can be stopped in advance, thereby achieving the purpose of stopping the repeated transmission of dynamically scheduled PUSCH in advance, and thus improving resource utilization.
[0100] like Figure 3 As shown in the illustration, this application also provides a channel transmission method applied to a network-side device, comprising:
[0101] Step 301: Send the first PDCCH, where the first DCI in the first PDCCH is used to indicate whether to stop the repeated transmission of PUSCH scheduled by the second PDCCH.
[0102] Here, the first PDCCH can be a group-wide PDCCH or a terminal-specific PDCCH. This first PDCCH is the same as the first PDCCH in the above-described terminal-side method embodiment, and will not be described again here.
[0103] The channel transmission method of this application embodiment sends a first PDCCH to the terminal, so that the terminal determines whether to stop the repeated transmission of PUSCH scheduled by the second PDCCH in advance based on the first DCI in the first PDCCH, thereby achieving the purpose of stopping the repeated transmission of dynamically scheduled PUSCH in advance, and thus improving resource utilization.
[0104] Optionally, before sending the first PDCCH, the method further includes:
[0105] Send a second PDCCH, which is used to schedule repeated transmissions of PUSCH.
[0106] After the UE detects the second PDCCH, it listens to the first PDCCH, meaning that the listening to the first PDCCH is triggered by the second PDCCH.
[0107] Optionally, the channel transmission method in this application embodiment further includes:
[0108] Indicate the first PDCCH listening opportunity to the terminal.
[0109] The listening opportunity is indicated by the search space set configuration.
[0110] The channel transmission method of this application embodiment sends a first PDCCH to the terminal, so that the terminal determines whether to stop the repeated transmission of PUSCH scheduled by the second PDCCH in advance based on the first DCI in the first PDCCH, thereby achieving the purpose of stopping the repeated transmission of dynamically scheduled PUSCH in advance, and thus improving resource utilization.
[0111] It should be noted that the channel monitoring method provided in this application can be executed by a channel monitoring device, or by a control module within that channel monitoring device for executing the channel monitoring method. This application uses the example of a channel monitoring device executing the channel monitoring method to illustrate the channel monitoring device provided in this application.
[0112] like Figure 4 As shown in the illustration, this application also provides a channel monitoring device 400, applied to a terminal, comprising:
[0113] The first determining module 401 is used to determine the listening opportunity of the first physical downlink control channel (PDCCH).
[0114] The monitoring module 402 is used to monitor the first PDCCH during the monitoring opportunity when the first preset condition is met.
[0115] The first downlink control information (DCI) in the first PDCCH is used to indicate whether to stop the repeated transmission of the Physical Uplink Shared Channel (PUSCH) scheduled by the second PDCCH.
[0116] In the channel monitoring apparatus of this application embodiment, the first determining module is used to determine the monitoring opportunity of the first PDCCH according to the search space set, wherein the search space set is indicated by the network device, or the search space set is indicated by the second PDCCH;
[0117] Alternatively, it can be used to determine the listening opportunity of the first PDCCH based on the second PDCCH.
[0118] The channel monitoring device of this application embodiment includes at least one of the following preset conditions:
[0119] The PUSCH retransmission has been completed N times, where 0 < N < M, M is the number of PUSCH retransmissions scheduled by the second PDCCH, and N is a positive integer.
[0120] The priority of PUSCH is either the default priority or the priority configured for the network device;
[0121] The second PDCCH instruction is to listen to the first PDCCH;
[0122] The time interval between the time resource corresponding to the first PDCCH listening opportunity and the time resource corresponding to the second PDCCH is greater than or equal to a first preset time.
[0123] In the channel monitoring device of this application embodiment, M is configured by a network device or indicated by a second PDCCH;
[0124] The N is configured by the network device, indicated by the second PDCCH, or determined based on the scheduling information of the repeated transmission of the PUSCH.
[0125] In the channel monitoring apparatus of this application embodiment, the scheduling information is the modulation and coding scheme (MCS) level, or the scheduling information is the PUSCH priority.
[0126] In the channel monitoring device of this application embodiment, the effective time of the first downlink control information is determined based on a second time that is located after the first time.
[0127] Wherein, the first time is the time to complete N PUSCH transmissions, and the time interval between the second time and the first time is a second preset time.
[0128] In the channel monitoring device of this application embodiment, M is greater than or equal to a preset transmission count threshold, which is configured by the network or predefined.
[0129] In the channel monitoring device of this application embodiment, the monitoring module is used to periodically monitor the monitoring opportunities;
[0130] Alternatively, during a preset time period after detecting repeated transmission of PUSCH scheduled by the second PDCCH, the first PDCCH may be monitored within the monitoring opportunity.
[0131] Alternatively, after detecting the second PDCCH, the first PDCCH can be monitored during the listening opportunity.
[0132] The channel monitoring device in this application embodiment further includes:
[0133] The first processing module is used to stop the repeated transmission of the PUSCH corresponding to the first transmission resource after the listening module listens to the first PDCCH during the listening opportunity, and when the first DCI indicates to stop the repeated transmission of the PUSCH scheduled by the second PDCCH. The first transmission resource is the transmission resource located after the second transmission resource, and the second transmission resource is the resource located L time units after the first PDCCH, where L is a positive integer.
[0134] The channel monitoring device in this application embodiment further includes:
[0135] The second processing module is used to, after the first determining module determines the listening opportunity of the first physical downlink control channel (PDCCH), abandon the listening of the first PDCCH during the listening opportunity if the second preset condition is met.
[0136] In the channel monitoring device of this application embodiment, the second preset condition includes at least one of the following:
[0137] The second downlink control information indicates that the symbol for listening to the first PDCCH is either a flexible symbol or an uplink symbol;
[0138] On the time resource corresponding to the first PDCCH listening opportunity, the terminal needs to listen to the PDCCH on the first control resource set CORESET. The quasi-co-address QCL attribute of the first CORESET is different from the QCL attribute of the first PDCCH CORESET.
[0139] The opportunity to listen to the first PDCCH overlaps with the opportunity to listen to the PDCCH scrambled with Random Access-Temporary Radio Network Identifier RA-RNTI, Temporary Cell-Temporary Radio Network Identifier TC-RNTI, or Message B-Temporary Cell Radio Network Identifier MSGB-RNTI.
[0140] The listening opportunity of the first PDCCH overlaps with the measurement resources of the synchronization signal block SSB;
[0141] The first PDCCH listening opportunity overlaps with the measurement resources of the Channel State Information Reference Signal (CSI-RS).
[0142] The first PDCCH will be monitored during the measurement interval;
[0143] The primary resource allocation for the first service cell is uplink transmission.
[0144] The primary resource for the first service area is uplink resources;
[0145] The terminal completes K repeated transmissions of PUSCH, where K is less than M;
[0146] Wherein, the first time resource refers to the time resource of the first serving cell that is the same as or overlaps with the monitoring resource of the first PDCCH; the first serving cell is a cell different from the second serving cell, and the second serving cell is the cell where the monitoring opportunity of the first PDCCH is located.
[0147] The channel monitoring device in this application embodiment further includes:
[0148] The transmission module is used to perform repeated transmission of PUSCH according to network configuration or according to the instruction of the second PDCCH after the second processing module abandons the listening opportunity for the first PDCCH.
[0149] The channel monitoring device of this application determines a first PDCCH monitoring opportunity. When a first preset condition is met, the first PDCCH is monitored during the monitoring opportunity. Then, according to the instruction of the first DCI, the repeated transmission of PUSCH scheduled by the second PDCCH can be stopped in advance, thereby achieving the purpose of stopping the repeated transmission of dynamically scheduled PUSCH in advance, and thus improving resource utilization.
[0150] The channel monitoring device in this application embodiment can be a device, or a component, integrated circuit, or chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not impose specific limitations.
[0151] The channel monitoring device in this application embodiment can be a device with an operating system. This operating system can be Android, iOS, or other possible operating systems; this application embodiment does not specifically limit it.
[0152] The channel monitoring device provided in this application embodiment can achieve... Figures 1 to 2 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.
[0153] Optional, such as Figure 5As shown, this application embodiment also provides a communication device 500, including a processor 501, a memory 502, and a program or instructions stored in the memory 502 and executable on the processor 501. For example, when the communication device 500 is a terminal, the program or instructions executed by the processor 501 implement the various processes of the channel monitoring method embodiment applied to the terminal described above, and achieve the same technical effect. When the communication device 500 is a network-side device, the program or instructions executed by the processor 501 implement the various processes of the channel transmission method embodiment applied to the network device side described above, and achieve the same technical effect. To avoid repetition, further details are omitted here.
[0154] Figure 6 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.
[0155] The terminal 600 includes, but is not limited to, components such as: radio frequency unit 601, network module 602, audio output unit 603, input unit 604, sensor 605, display unit 606, user input unit 607, interface unit 608, memory 609, and processor 610.
[0156] Those skilled in the art will understand that the terminal 600 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 610 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 6 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.
[0157] It should be understood that, in this embodiment, the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042. The GPU 6041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 607 includes a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.
[0158] In this embodiment, the radio frequency unit 601 receives downlink data from the network-side device and processes it for the processor 610; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.
[0159] The memory 609 can be used to store software programs or instructions and various data. The memory 609 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 609 may include high-speed random access memory and non-volatile memory, wherein the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.
[0160] Processor 610 may include one or more processing units; optionally, processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 610.
[0161] The processor 610 is used to determine the listening opportunity of the first physical downlink control channel (PDCCH); and to listen to the first PDCCH during the listening opportunity when a first preset condition is met.
[0162] The first downlink control information (DCI) in the first PDCCH is used to indicate whether to stop the repeated transmission of the Physical Uplink Shared Channel (PUSCH) scheduled by the second PDCCH.
[0163] The terminal in this application embodiment determines a first PDCCH listening opportunity. When a first preset condition is met, the terminal listens to the first PDCCH during the listening opportunity. Then, according to the instruction of the first DCI, the terminal can stop the repeated transmission of PUSCH scheduled by the second PDCCH in advance, thereby achieving the purpose of stopping the repeated transmission of dynamically scheduled PUSCH in advance and improving resource utilization.
[0164] Optionally, the processor 610 is further configured to determine a listening opportunity for a first PDCCH based on a search space set, wherein the search space set is indicated by a network device, or the search space set is indicated by a second PDCCH.
[0165] Alternatively, the listening opportunity for the first PDCCH can be determined based on the second PDCCH.
[0166] Optionally, the first preset condition includes at least one of the following:
[0167] The PUSCH retransmission has been completed N times, where 0 < N < M, M is the number of PUSCH retransmissions scheduled by the second PDCCH, and N is a positive integer.
[0168] The priority of PUSCH is either the default priority or the priority configured for the network device;
[0169] The second PDCCH instruction is to listen to the first PDCCH;
[0170] The time interval between the time resource corresponding to the first PDCCH listening opportunity and the time resource corresponding to the second PDCCH is greater than or equal to a first preset time.
[0171] Optionally, M is configured for the network device or indicated by a second PDCCH;
[0172] The N is configured by the network device, indicated by the second PDCCH, or determined based on the scheduling information of the repeated transmission of the PUSCH.
[0173] Optionally, the scheduling information is the modulation and coding scheme (MCS) level, or the scheduling information is the PUSCH priority.
[0174] Optionally, the effective time of the first downlink control information is determined based on a second time that follows the first time.
[0175] Wherein, the first time is the time to complete N PUSCH transmissions, and the time interval between the second time and the first time is a second preset time.
[0176] Optionally, M is greater than or equal to a preset transmission count threshold, which is configured by the network or predefined.
[0177] Optionally, the processor 610 is also configured to periodically monitor the listening opportunity;
[0178] Alternatively, during a preset time period after detecting repeated transmission of PUSCH scheduled by the second PDCCH, the first PDCCH may be monitored within the monitoring opportunity.
[0179] Alternatively, after detecting the second PDCCH, the first PDCCH can be monitored during the listening opportunity.
[0180] Optionally, the processor 610 is further configured to stop the repeated transmission of PUSCH corresponding to the first transmission resource when the first DCI indication is heard to stop the repeated transmission of PUSCH scheduled by the second PDCCH, wherein the first transmission resource is a transmission resource located after the second transmission resource, and the second transmission resource is a resource located at L time units after the first PDCCH, where L is a positive integer.
[0181] Optionally, the processor 610 is also configured to abandon listening to the first PDCCH during the listening opportunity if a second preset condition is met.
[0182] Optionally, the second preset condition includes at least one of the following:
[0183] The second downlink control information indicates that the symbol for listening to the first PDCCH is either a flexible symbol or an uplink symbol;
[0184] On the time resource corresponding to the first PDCCH listening opportunity, the terminal needs to listen to the PDCCH on the first control resource set CORESET. The quasi-co-address QCL attribute of the first CORESET is different from the QCL attribute of the first PDCCH CORESET.
[0185] The opportunity to listen to the first PDCCH overlaps with the opportunity to listen to the PDCCH scrambled with Random Access-Temporary Radio Network Identifier RA-RNTI, Temporary Cell-Temporary Radio Network Identifier TC-RNTI, or Message B-Temporary Cell Radio Network Identifier MSGB-RNTI.
[0186] The listening opportunity of the first PDCCH overlaps with the measurement resources of the synchronization signal block SSB;
[0187] The first PDCCH listening opportunity overlaps with the measurement resources of the Channel State Information Reference Signal (CSI-RS).
[0188] The first PDCCH will be monitored during the measurement interval;
[0189] The primary resource allocation for the first service cell is uplink transmission.
[0190] The primary resource for the first service area is uplink resources;
[0191] The terminal completes K repeated transmissions of PUSCH, where K is less than M;
[0192] Wherein, the first time resource refers to the time resource of the first serving cell that is the same as or overlaps with the monitoring resource of the first PDCCH; the first serving cell is a cell different from the second serving cell, and the second serving cell is the cell where the monitoring opportunity of the first PDCCH is located.
[0193] Optionally, the processor 610 is also configured to perform repeated transmission of the PUSCH according to network configuration or according to the instructions of the second PDCCH.
[0194] The terminal in this application embodiment determines a first PDCCH listening opportunity. When a first preset condition is met, the terminal listens to the first PDCCH during the listening opportunity. Then, according to the instruction of the first DCI, the terminal can stop the repeated transmission of PUSCH scheduled by the second PDCCH in advance, thereby achieving the purpose of stopping the repeated transmission of dynamically scheduled PUSCH in advance and improving resource utilization.
[0195] like Figure 7 As shown in the figure, this application embodiment also provides a channel transmission device 700, applied to a network-side device, including:
[0196] The first sending module 701 is used to send a first PDCCH, wherein the first DCI in the first PDCCH is used to indicate whether to stop the repeated transmission of PUSCH scheduled by the second PDCCH.
[0197] The channel transmission apparatus of this application embodiment further includes:
[0198] The second sending module is used to send a second PDCCH before the first sending module sends the first PDCCH. The second PDCCH is used to schedule repeated transmissions of PUSCH.
[0199] The channel transmission apparatus of this application embodiment further includes:
[0200] The indication module is used to indicate to the terminal the first PDCCH listening opportunity.
[0201] The information transmission device of this application embodiment can implement the various processes implemented in the channel transmission method embodiment applied to network side equipment and achieve the same technical effect. To avoid repetition, it will not be described again here.
[0202] The information transmission device in this application embodiment sends a first PDCCH to the terminal, so that the terminal determines whether to stop the repeated transmission of PUSCH scheduled by the second PDCCH in advance based on the first DCI in the first PDCCH. This achieves the purpose of stopping the repeated transmission of dynamically scheduled PUSCH in advance, thereby improving resource utilization.
[0203] Specifically, embodiments of this application also provide a network-side device. For example... Figure 8 As shown, the network device 800 includes an antenna 801, a radio frequency (RF) device 802, and a baseband device 803. The antenna 801 is connected to the RF device 802. In the uplink direction, the RF device 802 receives information through the antenna 801 and transmits the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be transmitted and sends it to the RF device 802. The RF device 802 processes the received information and transmits it through the antenna 81.
[0204] The aforementioned frequency band processing device can be located in the baseband device 803. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 803, which includes a processor 804 and a memory 805.
[0205] The baseband device 803 may, for example, include at least one baseband board on which multiple chips are disposed, such as... Figure 8 As shown, one of the chips, for example, is a processor 804, which is connected to a memory 805 to call the program in the memory 805 and execute the network device operations shown in the above method embodiment.
[0206] The baseband device 803 may also include a network interface 806 for exchanging information with the radio frequency device 802, such as a common public radio interface (CPRI).
[0207] Specifically, the network-side device in this embodiment of the invention further includes: instructions or programs stored in memory 805 and executable on processor 804, wherein processor 804 calls the instructions or programs in memory 805 to execute... Figure 7 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.
[0208] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described channel monitoring method or channel transmission method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.
[0209] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.
[0210] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run network-side device programs or instructions to implement the various processes of the above-described channel monitoring method or channel transmission method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.
[0211] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.
[0212] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0213] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.
[0214] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A channel monitoring method, applied to a terminal, characterized in that, include: Determine the opportunity to monitor the first physical downlink control channel (PDCCH); Under the condition that the first preset condition is met, the first PDCCH is monitored during the monitoring opportunity; The first downlink control information (DCI) in the first PDCCH is used to indicate whether to stop the repeated transmission of the Physical Uplink Shared Channel (PUSCH) scheduled by the second PDCCH. The first preset condition includes at least one of the following: The PUSCH retransmission has been completed N times, where 0 < N < M, M is the number of PUSCH retransmissions scheduled by the second PDCCH, and N is indicated by the second PDCCH, where N is a positive integer. The priority of PUSCH is either the default priority or the priority configured for the network device; The second PDCCH instruction is to listen to the first PDCCH; The time interval between the time resource corresponding to the first PDCCH listening opportunity and the time resource corresponding to the second PDCCH is greater than or equal to the first preset time. Wherein, the first PDCCH is a terminal-dedicated PDCCH, and the terminal-dedicated PDCCH contains at least one of the following indication information: In the first DCI, the frequency domain resource allocation FDRA field is either all 0s or all 1s; The bits of the target information field are used to instruct the UE to stop repeated PUSCH transmissions. The target information is the Time Domain Resource Allocation (TDRA), HARQ process number, MCS level, or Downlink Allocation Index (DAI).
2. The channel monitoring method according to claim 1, characterized in that, The process of determining the listening opportunity for the first physical downlink control channel (PDCCH) includes: Based on the search space set, determine the listening opportunity of the first PDCCH, wherein the search space set is indicated by the network device, or the search space set is indicated by the second PDCCH; Alternatively, the listening opportunity for the first PDCCH can be determined based on the second PDCCH.
3. The channel monitoring method according to claim 1, characterized in that, The M is configured for the network device or indicated by the second PDCCH.
4. The channel monitoring method according to claim 1, characterized in that, The effective time of the first downlink control information is determined based on a second time that occurs after the first time. Wherein, the first time is the time to complete N PUSCH transmissions, and the time interval between the second time and the first time is a second preset time.
5. The channel monitoring method according to claim 1, characterized in that, M is greater than or equal to a preset transmission count threshold, which is configured or predefined by the network.
6. The channel monitoring method according to claim 1, characterized in that, Listening to the first PDCCH during the listening opportunity includes: The listening opportunities are periodically monitored; Alternatively, during a preset time period after detecting repeated transmission of PUSCH scheduled by the second PDCCH, the first PDCCH may be monitored within the monitoring opportunity. Alternatively, after detecting the second PDCCH, the first PDCCH can be monitored during the listening opportunity.
7. The channel monitoring method according to claim 1, characterized in that, After listening to the first PDCCH during the listening opportunity, the method further includes: If the first DCI instruction is received to stop the repeated transmission of PUSCH scheduled by the second PDCCH, the repeated transmission of PUSCH corresponding to the first transmission resource is stopped. The first transmission resource is the transmission resource located after the second transmission resource. The second transmission resource is the resource located L time units after the first PDCCH, where L is a positive integer.
8. The channel monitoring method according to claim 1, characterized in that, After determining the listening opportunity for the first physical downlink control channel (PDCCH), the method further includes: If the second preset condition is met, the listening of the first PDCCH during the listening opportunity is abandoned.
9. The channel monitoring method according to claim 8, characterized in that, The second preset condition includes at least one of the following: The second downlink control information indicates that the symbol for listening to the first PDCCH is either a flexible symbol or an uplink symbol; On the time resource corresponding to the first PDCCH listening opportunity, the terminal needs to perform PDCCH listening on the first control resource set CORESET. The quasi-co-address QCL attribute of the first CORESET is different from the QCL attribute of the first PDCCH CORESET. The opportunity to listen to the first PDCCH overlaps with the opportunity to listen to the PDCCH scrambled with Random Access-Temporary Radio Network Identifier RA-RNTI, Temporary Cell-Temporary Radio Network Identifier TC-RNTI, or Message B-Temporary Cell Radio Network Identifier MSGB-RNTI. The listening opportunity of the first PDCCH overlaps with the measurement resources of the synchronization signal block SSB; The first PDCCH listening opportunity overlaps with the measurement resources of the Channel State Information Reference Signal (CSI-RS). The first PDCCH will be monitored during the measurement interval; The primary resource allocation for the first service cell is uplink transmission. The primary resource for the first service area is uplink resources; The terminal completes K repeated transmissions of PUSCH, where K is less than M; Wherein, the first time resource refers to the time resource of the first serving cell that is the same as or overlaps with the monitoring resource of the first PDCCH; the first serving cell is a cell different from the second serving cell, and the second serving cell is the cell where the monitoring opportunity of the first PDCCH is located.
10. The channel monitoring method according to claim 8, characterized in that, The decision to abandon listening to the first PDCCH during the listening opportunity also includes: PUSCH is repeatedly transmitted according to the network configuration or as instructed by the second PDCCH.
11. A channel transmission method, applied to a network-side device, characterized in that, include: Send the first PDCCH, and the first DCI in the first PDCCH is used to indicate whether to stop the repeated transmission of PUSCH scheduled by the second PDCCH; The first PDCCH listens when the terminal determines that the first preset condition is met. The first preset condition includes at least one of the following: The PUSCH retransmission has been completed N times, where 0 < N < M, M is the number of PUSCH retransmissions scheduled by the second PDCCH, and N is indicated by the second PDCCH, where N is a positive integer. The priority of PUSCH is either the default priority or the priority configured for the network device; The second PDCCH instruction is to listen to the first PDCCH; The time interval between the time resource corresponding to the first PDCCH listening opportunity and the time resource corresponding to the second PDCCH is greater than or equal to the first preset time. Wherein, the first PDCCH is a terminal-dedicated PDCCH, and the terminal-dedicated PDCCH contains at least one of the following indication information: In the first DCI, the frequency domain resource allocation FDRA field is either all 0s or all 1s; The bits of the target information field are used to instruct the UE to stop repeated PUSCH transmissions. The target information is the Time Domain Resource Allocation (TDRA), HARQ process number, MCS level, or Downlink Allocation Index (DAI).
12. The channel transmission method according to claim 11, characterized in that, Before sending the first PDCCH, the method further includes: Send a second PDCCH, which is used to schedule repeated transmissions of PUSCH.
13. The channel transmission method according to claim 11, characterized in that, Also includes: Indicate the first PDCCH listening opportunity to the terminal.
14. A channel monitoring device, applied to a terminal, characterized in that, include: The first determining module is used to determine the listening opportunity of the first physical downlink control channel (PDCCH). A monitoring module is used to monitor the first PDCCH during the monitoring opportunity when a first preset condition is met. The first downlink control information (DCI) in the first PDCCH is used to indicate whether to stop the repeated transmission of the Physical Uplink Shared Channel (PUSCH) scheduled by the second PDCCH. The first preset condition includes at least one of the following: The PUSCH retransmission has been completed N times, where 0 < N < M, M is the number of PUSCH retransmissions scheduled by the second PDCCH, and N is indicated by the second PDCCH, where N is a positive integer. The priority of PUSCH is either the default priority or the priority configured for the network device; The second PDCCH instruction is to listen to the first PDCCH; The time interval between the time resource corresponding to the first PDCCH listening opportunity and the time resource corresponding to the second PDCCH is greater than or equal to the first preset time. Wherein, the first PDCCH is a terminal-dedicated PDCCH, and the terminal-dedicated PDCCH contains at least one of the following indication information: In the first DCI, the frequency domain resource allocation FDRA field is either all 0s or all 1s; The bits of the target information field are used to instruct the UE to stop repeated PUSCH transmissions. The target information is the Time Domain Resource Allocation (TDRA), HARQ process number, MCS level, or Downlink Allocation Index (DAI).
15. The channel monitoring device according to claim 14, characterized in that, The first determining module is used to determine the listening opportunity of the first PDCCH based on the search space set, wherein the search space set is indicated by the network device, or the search space set is indicated by the second PDCCH; Alternatively, it can be used to determine the listening opportunity of the first PDCCH based on the second PDCCH.
16. The channel monitoring device according to claim 14, characterized in that, The M is configured for the network device or indicated by the second PDCCH.
17. The channel monitoring device according to claim 14, characterized in that, The effective time of the first downlink control information is determined based on a second time that occurs after the first time. Wherein, the first time is the time to complete N PUSCH transmissions, and the time interval between the second time and the first time is a second preset time.
18. The channel monitoring device according to claim 14, characterized in that, M is greater than or equal to a preset transmission count threshold, which is configured or predefined by the network.
19. The channel monitoring device according to claim 14, characterized in that, The monitoring module is used to periodically monitor the monitoring opportunities; Alternatively, during a preset time period after detecting repeated transmission of PUSCH scheduled by the second PDCCH, the first PDCCH may be monitored within the monitoring opportunity. Alternatively, after detecting the second PDCCH, the first PDCCH can be monitored during the listening opportunity.
20. The channel monitoring device according to claim 14, characterized in that, Also includes: The first processing module is used to stop the repeated transmission of the PUSCH corresponding to the first transmission resource after the listening module listens to the first PDCCH during the listening opportunity, and when the first DCI indicates to stop the repeated transmission of the PUSCH scheduled by the second PDCCH. The first transmission resource is the transmission resource located after the second transmission resource, and the second transmission resource is the resource located L time units after the first PDCCH, where L is a positive integer.
21. The channel monitoring device according to claim 14, characterized in that, Also includes: The second processing module is used to, after the first determining module determines the listening opportunity of the first physical downlink control channel (PDCCH), abandon the listening of the first PDCCH during the listening opportunity if the second preset condition is met.
22. The channel monitoring device according to claim 21, characterized in that, The second preset condition includes at least one of the following: The second downlink control information indicates that the symbol for listening to the first PDCCH is either a flexible symbol or an uplink symbol; On the time resource corresponding to the first PDCCH listening opportunity, the terminal needs to perform PDCCH listening on the first control resource set CORESET. The quasi-co-address QCL attribute of the first CORESET is different from the QCL attribute of the first PDCCH CORESET. The opportunity to listen to the first PDCCH overlaps with the opportunity to listen to the PDCCH scrambled with Random Access-Temporary Radio Network Identifier RA-RNTI, Temporary Cell-Temporary Radio Network Identifier TC-RNTI, or Message B-Temporary Cell Radio Network Identifier MSGB-RNTI. The listening opportunity of the first PDCCH overlaps with the measurement resources of the synchronization signal block SSB; The first PDCCH listening opportunity overlaps with the measurement resources of the Channel State Information Reference Signal (CSI-RS). The first PDCCH will be monitored during the measurement interval; The primary resource allocation for the first service cell is uplink transmission. The primary resource for the first service area is uplink resources; The terminal completes K repeated transmissions of PUSCH, where K is less than M; Wherein, the first time resource refers to the time resource of the first serving cell that is the same as or overlaps with the monitoring resource of the first PDCCH; the first serving cell is a cell different from the second serving cell, and the second serving cell is the cell where the monitoring opportunity of the first PDCCH is located.
23. The channel monitoring device according to claim 21, characterized in that, Also includes: The transmission module is used to perform repeated transmission of PUSCH according to network configuration or according to the instruction of the second PDCCH after the second processing module abandons the listening opportunity for the first PDCCH.
24. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the channel monitoring method as described in any one of claims 1 to 10.
25. A channel transmission device, applied to network-side equipment, characterized in that, include: The first sending module is used to send the first PDCCH, and the first DCI in the first PDCCH is used to indicate whether to stop the repeated transmission of PUSCH scheduled by the second PDCCH. The first PDCCH listens when the terminal determines that the first preset condition is met. The first preset condition includes at least one of the following: The PUSCH retransmission has been completed N times, where 0 < N < M, M is the number of PUSCH retransmissions scheduled by the second PDCCH, and N is indicated by the second PDCCH, where N is a positive integer. The priority of PUSCH is either the default priority or the priority configured for the network device; The second PDCCH instruction is to listen to the first PDCCH; The time interval between the time resource corresponding to the first PDCCH listening opportunity and the time resource corresponding to the second PDCCH is greater than or equal to the first preset time. Wherein, the first PDCCH is a terminal-dedicated PDCCH, and the terminal-dedicated PDCCH contains at least one of the following indication information: In the first DCI, the frequency domain resource allocation FDRA field is either all 0s or all 1s; The bits of the target information field are used to instruct the UE to stop repeated PUSCH transmissions. The target information is the Time Domain Resource Allocation (TDRA), HARQ process number, MCS level, or Downlink Allocation Index (DAI).
26. The channel transmission apparatus according to claim 25, characterized in that, Also includes: The second sending module is used to send a second PDCCH before the first sending module sends the first PDCCH. The second PDCCH is used to schedule repeated transmissions of PUSCH.
27. The channel transmission apparatus according to claim 25, characterized in that, Also includes: The indication module is used to indicate to the terminal the first PDCCH listening opportunity.
28. A network-side device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the channel transmission method as described in any one of claims 11 to 13.
29. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the channel monitoring method as described in any one of claims 1 to 10 or the steps of the channel transmission method as described in any one of claims 11 to 13.
Citation Information
Patent Citations
Data transmission method and device based on authorization-free uplink scheduling, and storage medium
CN110537390A