Pdcch monitoring indication method, apparatus, device, and medium
By receiving low-power signals based on OOK and/or OFDM waveforms sent by the base station, and carrying indication information to control the terminal's PDCCH listening behavior, the problems of poor energy-saving indication flexibility and high energy consumption in the prior art are solved, and the terminal achieves high-efficiency energy saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DATANG MOBILE COMM EQUIP CO LTD
- Filing Date
- 2025-01-13
- Publication Date
- 2026-07-14
AI Technical Summary
In existing technologies, energy-saving indicators for PDCCH monitoring are inflexible and have high energy consumption. Existing energy-saving indicators based on PDCCH bearers result in high terminal detection energy consumption.
By receiving low-power signals generated based on OOK waveforms and/or OFDM waveforms from the base station, the terminal carries indication information to indicate its behavior, including listening to the PDCCH, entering sleep mode, skipping the listening time, switching search space, switching secondary cell bandwidth, and timer control, thereby improving the flexibility of energy-saving indication.
This enables the terminal to flexibly control the PDCCH listening behavior with low power consumption, improving energy saving and reducing the terminal's power consumption.
Smart Images

Figure CN122395701A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of communication technology, and in particular to a PDCCH monitoring indication method, apparatus, device and medium. Background Technology
[0002] Discontinuous Reception (DRX) is a feature introduced by the terminal to save power. It is configured by the Radio Resource Control (RRC) layer. In connected mode, if the RRC layer configures DRX for the Media Access Control (MAC) layer, the terminal can monitor the Physical Downlink Control Channel (PDCCH) discontinuously at the physical layer; otherwise, the terminal monitors the PDCCH continuously. After the network is configured with DRX, the terminal listens to the PDCCH according to the DRX cycle configured by the base station.
[0003] To further reduce energy consumption, a scheme to reduce PDCCH monitoring during the DRX activation period is also provided. However, this scheme has poor flexibility in energy saving indication. In addition, the existing energy saving instructions are based on PDCCH, and the energy consumption overhead of terminal detection of PDCCH is large. Summary of the Invention
[0004] The purpose of this application is to provide a PDCCH monitoring indication method, device, equipment and medium to solve the problems of poor flexibility of existing energy-saving indication and high energy consumption caused by its load.
[0005] To achieve the above objectives, in a first aspect, embodiments of this application provide a PDCCH monitoring indication method, applied to a terminal, comprising:
[0006] The receiver receives a first signal sent by the base station, wherein the first signal carries indication information and is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform;
[0007] The behavior of the terminal is determined based on the indicated information; or, the behavior of the terminal is determined based on the state of the terminal and the indicated information.
[0008] In some embodiments, the indication information includes one or more of the following:
[0009] The first indication information is used to indicate whether the terminal is listening to the Physical Downlink Control Channel (PDCCH).
[0010] The second instruction information is used to indicate whether the terminal has entered sleep mode;
[0011] The third instruction information is used to instruct the terminal to skip PDCCH monitoring within a preset time period;
[0012] The fourth instruction is used to instruct the terminal to switch search spaces to monitor the PDCCH;
[0013] The fifth instruction information is used to indicate whether the secondary cell has switched to the dormant bandwidth portion (BWP).
[0014] The sixth indication information is used to indicate whether the first timer is started;
[0015] The seventh instruction is used to indicate whether the terminal has enabled PDCCH listening;
[0016] The eighth instruction is used to indicate whether the terminal should switch the PDCCH listening cycle.
[0017] In some embodiments, the state of the terminal includes a first state or a second state;
[0018] The first state includes one or more of the following:
[0019] During DRX inactivity;
[0020] Do not listen to PDCCH in the predefined search space;
[0021] Do not listen to PDCCH on predefined PDCCH listening opportunities;
[0022] Do not receive synchronization signal block (SSB);
[0023] No Radio Resource Management (RRM) measurements were performed.
[0024] Do not send uplink signals;
[0025] The second state includes one or more of the following:
[0026] During DRX activation;
[0027] Listen to PDCCH;
[0028] Listen to the PDCCH at a predefined period;
[0029] Receive SSB;
[0030] Perform RRM measurement;
[0031] Send uplink information.
[0032] In some embodiments, the indication information is determined based on the state of the terminal or the discontinuous reception of DRX.
[0033] In some embodiments, when the terminal is in the first state, the indication information includes fifth indication information and / or seventh indication information;
[0034] When the terminal is in the second state, the indication information includes at least one of the second indication information, the fifth indication information, and the eighth indication information;
[0035] When the terminal is configured with DRX and the DRX status is in the DRX inactive period, the indication information includes at least one of the first indication information, the fifth indication information, and the sixth indication information;
[0036] When the terminal is configured with DRX and the DRX status is DRX active, the indication information includes at least one of the second indication information, the third indication information, the fourth indication information, and the fifth indication information.
[0037] In some embodiments, the behavior of the terminal includes one or more of the following:
[0038] Do not listen to PDCCH;
[0039] Switch the PDCCH listening cycle;
[0040] SSB is not accepted;
[0041] RRM measurement is not performed.
[0042] In some embodiments, the first signal includes a function indication field, which carries the indication information.
[0043] In some embodiments, the first signal transmitted by the receiving base station includes:
[0044] According to the target period, receive the first signal sent by the base station.
[0045] In some embodiments, the target period is obtained through at least one of broadcast signals, predefined methods, higher-layer configurations, and downlink control information;
[0046] The target period is equal to 1 / N of the DRX period, where N is a positive integer; or,
[0047] The target period is equal to the PDCCH listening opportunity period * Y, where Y is a positive integer; or...
[0048] The target period is a specific period.
[0049] In some embodiments, the method further includes:
[0050] The indication information is obtained by demodulating the first signal according to the target configuration parameters; wherein the target configuration parameters include one or more of the following:
[0051] The length of the functional indication field of the first signal;
[0052] The effective payload size of the first signal;
[0053] The indication method of the first signal includes a bitmap indication or a codepoint indication;
[0054] The signal structure of the first signal includes serial cascade or multi-stage cascade;
[0055] The encoding method of the first signal includes one of Manchester encoding, pulse width encoding, biphase-spaced code encoding, and Miller encoding.
[0056] The time-frequency resource mapping method of the first signal includes carrying 1 bit of information in one orthogonal frequency division multiplexing symbol, where 1 indicates that all resource elements are mapped to 1 and 0 indicates that all resource elements are mapped to 0; or, carrying M bits of information in one orthogonal frequency division multiplexing symbol, corresponding to M on / off keying symbols, where M is 1, 2 or 4.
[0057] The target listening position parameters are determined by the signal structure of the first signal.
[0058] In some embodiments, the step of demodulating the first signal according to the target configuration parameters to obtain the indication information includes:
[0059] The length of each functional indication field of the terminal is determined based on the length of the functional indication field of the first signal or the effective payload size of the first signal.
[0060] Based on the target listening location parameters, determine the listening location parameters of the terminal;
[0061] Based on the listening location parameters of the terminal and the length of each function indication field of the terminal, the indication information carried by each function indication field of the terminal is demodulated from the first signal.
[0062] In some embodiments, the method further includes:
[0063] After determining the terminal's behavior according to the indicated information, the terminal's behavior is executed after a first effective duration; wherein, the first effective duration is determined according to the terminal's third state, the third state including stopping PDCCH listening or starting PDCCH listening.
[0064] In some embodiments, determining the behavior of the terminal based on the terminal's state and the indication information includes:
[0065] After determining the terminal's behavior based on the terminal's state and the indicated information, the terminal's behavior is executed after a second effective duration; wherein the second effective duration is determined by one or more of the following:
[0066] Different energy-saving states of the terminal;
[0067] Terminal synchronization resource information;
[0068] Demodulation processing time of the first signal;
[0069] Does the first signal carry the auxiliary cell into hibernation?
[0070] In some embodiments, the method further includes:
[0071] When the instruction information includes third instruction information and fourth instruction information, the actions of the terminal corresponding to the third instruction information and the actions of the terminal corresponding to the fourth instruction information are executed according to the pre-configured or agreed execution rules.
[0072] Secondly, embodiments of this application also provide a PDCCH monitoring indication method, applied to a base station, comprising:
[0073] A first signal is sent to the terminal, wherein the first signal carries indication information, the first signal is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform, and the indication information is used to determine the behavior of the terminal.
[0074] In some embodiments, the indication information includes one or more of the following:
[0075] The first indication information is used to indicate whether the terminal is listening to the Physical Downlink Control Channel (PDCCH).
[0076] The second instruction information is used to indicate whether the terminal has entered sleep mode;
[0077] The third instruction information is used to instruct the terminal to skip PDCCH monitoring within a preset time period;
[0078] The fourth instruction is used to instruct the terminal to switch search spaces to monitor the PDCCH;
[0079] The fifth instruction information is used to indicate whether the secondary cell has switched to the dormant bandwidth portion (BWP).
[0080] The sixth indication information is used to indicate whether the first timer is started;
[0081] The seventh instruction is used to indicate whether the terminal has enabled PDCCH listening;
[0082] The eighth instruction is used to indicate whether the terminal should switch the PDCCH listening cycle.
[0083] In some embodiments, the indication information is determined based on the terminal's state or the state of discontinuous DRX reception;
[0084] The terminal's state includes a first state and a second state;
[0085] The first state includes one or more of the following:
[0086] During DRX off period;
[0087] Do not listen to PDCCH in the predefined search space;
[0088] Do not listen to PDCCH on predefined PDCCH listening opportunities;
[0089] Do not receive synchronization signal block (SSB);
[0090] No Radio Resource Management (RRM) measurements were performed.
[0091] Do not send uplink signals;
[0092] The second state includes one or more of the following:
[0093] During DRX on;
[0094] Listen to PDCCH;
[0095] Listen to the PDCCH at a predefined period;
[0096] Receive SSB;
[0097] Perform RRM measurement;
[0098] Send uplink information.
[0099] In some embodiments, when the terminal is in the first state, the indication information includes seventh indication information and / or fifth indication information;
[0100] When the terminal is in the second state, the indication information includes at least one of the second indication information, the fifth indication information, and the eighth indication information;
[0101] When the terminal is configured with DRX and the DRX status is in the DRX inactive period, the indication information includes at least one of the first indication information, the fifth indication information, and the sixth indication information;
[0102] When the terminal is configured with DRX and the DRX status is DRX active, the indication information includes at least one of the second indication information, the third indication information, the fourth indication information, and the fifth indication information.
[0103] In some embodiments, the behavior of the terminal includes one or more of the following:
[0104] Do not listen to PDCCH;
[0105] Switch the PDCCH listening cycle;
[0106] SSB is not accepted;
[0107] RRM measurement is not performed.
[0108] In some embodiments, the first signal includes a function indication field, which carries the indication information.
[0109] In some embodiments, the method further includes:
[0110] Configure target configuration parameters for at least one terminal;
[0111] Generate a first signal based on the target configuration parameters;
[0112] Sending the first signal to the terminal includes:
[0113] The first signal is sent to the terminal according to the target period.
[0114] In some embodiments, the target configuration parameter includes one or more of the following:
[0115] The length of the functional indication field of the first signal;
[0116] The effective payload size of the first signal;
[0117] The indication method of the first signal includes a bitmap indication or a codepoint indication;
[0118] The signal structure of the first signal includes serial cascade or multi-stage cascade;
[0119] The encoding method of the first signal includes one of Manchester encoding, pulse width encoding, biphase-spaced code encoding, and Miller encoding.
[0120] The time-frequency resource mapping method of the first signal includes carrying 1 bit of information in one orthogonal frequency division multiplexing symbol, where 1 indicates that all resource elements are mapped to 1 and 0 indicates that all resource elements are mapped to 0; or, carrying M bits of information in one orthogonal frequency division multiplexing symbol, corresponding to M on / off keying symbols, where M is 1, 2 or 4.
[0121] The target listening position parameters are determined by the signal structure of the first signal.
[0122] In some embodiments, the target period is equal to the DRX period 1 / N, where N is a positive integer; or,
[0123] The target period is equal to the PDCCH listening opportunity period * Y, where Y is a positive integer; or...
[0124] The target period is a specific period.
[0125] In some embodiments, configuring target configuration parameters for at least one terminal includes:
[0126] When the indication method of the first signal is configured as bitmap indication and the signal structure of the first signal is configured as serial concatenation, the total length of all categories of function indication fields corresponding to each terminal and the length of the first function indication field corresponding to each terminal are determined according to the length of the function indication field of the first signal or the effective payload size of the first signal.
[0127] Based on the total length of all category function indication fields corresponding to each terminal, the length of the first function indication field corresponding to each terminal, and the serial concatenation, the target monitoring position parameter is determined, and the target monitoring parameter is used as one of the target configuration parameters.
[0128] In some embodiments, configuring target configuration parameters for at least one terminal includes:
[0129] When the indication method of the first signal is configured as bitmap indication and the signal structure of the first signal is configured as multi-level cascade, the total length of each category of function indication field and the length of each category of function indication field corresponding to each terminal are determined according to the length of the function indication field of the first signal or the effective payload size of the first signal.
[0130] Based on the total length of each category function indication field, the length of each category function indication field corresponding to each terminal, and the multi-level cascading, the target monitoring location parameter is determined, and the target monitoring parameter is used as one of the target configuration parameters.
[0131] Thirdly, embodiments of this application also provide a terminal, including: a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor is configured to read the program from the memory and execute the following processes:
[0132] The transceiver receives a first signal sent by the base station, wherein the first signal carries indication information and is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform.
[0133] The behavior of the terminal is determined based on the indicated information; or, the behavior of the terminal is determined based on the state of the terminal and the indicated information.
[0134] Fourthly, embodiments of this application also provide a PDCCH monitoring indication device, comprising:
[0135] The receiving unit is configured to receive a first signal transmitted by the base station, wherein the first signal carries indication information and is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform;
[0136] The first processing unit is configured to determine the behavior of the terminal based on the instruction information; or, based on the state of the terminal and the instruction information, determine the behavior of the terminal.
[0137] Fifthly, embodiments of this application also provide a base station, including: a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor is configured to read the program from the memory and execute the following processes:
[0138] The transceiver sends a first signal to the terminal, wherein the first signal carries indication information, and the first signal is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform, and the indication information is used to determine the behavior of the terminal.
[0139] Sixthly, embodiments of this application also provide a PDCCH monitoring indication device, comprising:
[0140] A transmitting unit is configured to transmit a first signal to a terminal, wherein the first signal carries indication information, the first signal is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform, and the indication information is used to determine the behavior of the terminal.
[0141] In a seventh aspect, embodiments of this application also provide a non-transiently readable storage medium storing a program for executing the steps of the PDCCH monitoring indication method described in the first aspect, or executing the steps of the PDCCH monitoring indication method described in the second aspect.
[0142] The above-mentioned technical solution of this application has at least the following beneficial effects:
[0143] In the above technical solutions of this application embodiment, by receiving a first signal sent by a base station, which is generated based on an OOK waveform and / or an OFDM waveform, the low-power signal terminal can receive the signal with lower power consumption, thereby achieving energy saving. Moreover, the determination of the terminal's behavior is achieved by carrying indication information through the first signal, which improves the flexibility of the indication. Attached Figure Description
[0144] Figure 1 Diagram showing the existing C-DRX configuration;
[0145] Figure 2 This is a schematic diagram of the service transmission indicated by the existing DCP.
[0146] Figure 3 Diagram illustrating the configuration of internal SSSG and skipping of PDCCH monitoring for existing C-DRX models;
[0147] Figure 4 This is one of the flowcharts illustrating the PDCCH monitoring indication method according to an embodiment of this application;
[0148] Figure 5 A schematic diagram illustrating the use of a low-power wake-up signal to wake up the main device on the terminal.
[0149] Figure 6 This is a second flowchart illustrating the PDCCH monitoring indication method according to an embodiment of this application;
[0150] Figure 7 This is one of the schematic diagrams of the signal structure of the first signal in serial cascade as an embodiment of this application;
[0151] Figure 8 This is a schematic diagram of the signal structure of the first signal in a multi-stage cascaded configuration according to an embodiment of this application.
[0152] Figure 9 This is a schematic diagram illustrating the terminal executing corresponding PDCCH monitoring behavior according to the first execution rule in an embodiment of this application.
[0153] Figure 10 This is a schematic diagram of the signal structure of the first signal, including the function indication identifier field, according to an embodiment of this application.
[0154] Figure 11 This is a second schematic diagram of the signal structure of the first signal in a serially cascaded manner, as shown in an embodiment of this application.
[0155] Figure 12This is a schematic diagram illustrating how a terminal in an embodiment of this application performs PDCCH monitoring based on the indication information of a first signal in different states.
[0156] Figure 13 This is a structural block diagram of the terminal according to an embodiment of this application;
[0157] Figure 14 This is one of the module schematic diagrams of the PDCCH monitoring and indication device according to an embodiment of this application;
[0158] Figure 15 This is a structural block diagram of a base station according to an embodiment of this application;
[0159] Figure 16 This is a schematic diagram of the PDCCH monitoring and indication device according to an embodiment of this application. Detailed Implementation
[0160] In the embodiments of this application, the term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.
[0161] In the embodiments of this application, the term "multiple" refers to two or more, and other quantifiers are similar.
[0162] 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 a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0163] To facilitate understanding of the solution proposed in this application, the relevant content will be introduced first.
[0164] 1) Connected Discontinuous Reception (C-DRX)
[0165] DRX is a power-saving feature introduced by the UE (User Equipment). It is configured by the RRC (Remote Control Center) layer. In connected mode, if the RRC layer configures DRX for the MAC layer, the UE can monitor the PDCCH discontinuously at the physical layer; otherwise, the UE monitors the PDCCH continuously. For details on configuring DRX in the network, please refer to [link to relevant documentation]. Figure 1As shown, the terminal listens to the PDCCH according to the DRX cycle configured by the base station. The DRX cycle (also known as the discontinuous reception cycle) consists of "On Duration" (also known as the DRX active period) and "Opportunity for DRX" (also known as the DRX inactive period): during the "On Duration" period, the UE listens to and receives the PDCCH (active period); during the "Opportunity for DRX" period, the UE does not receive the PDCCH to reduce power consumption (sleep period).
[0166] Specifically, during the On Duration period (including at least the drx-OndurationTimer, which can be called the timer corresponding to the DRX activation period), the UE normally listens to the PDCCH channel. After the On Duration, the UE can enter a sleep state to save energy.
[0167] After the UE enters sleep mode, if downlink data arrives from the network, the base station will not perform downlink PDCCH scheduling.
[0168] 2) DCP
[0169] DCP stands for DCI with CRC scrambled by PS_RNTI. It should be understood that DCP is essentially a type of Downlink Control Information (DCI). DCP is a DCI scrambled with a Cyclic Redundancy Check (CRC) code using the Power Saving-Radio Network Temporary Identifier (PS_RNTI).
[0170] See Figure 2 The DCP is used to indicate whether the drx-OndurationTimer is enabled or disabled to achieve further energy savings. When there is no service transmission, the network can instruct the UE to continue sleeping through the DCP, and instruct the UE to wake up when there is service.
[0171] 3) Search Space Set Group (SSSG) and skipping of PDCCH monitoring
[0172] To further reduce energy consumption, a scheme for minimizing PDCCH monitoring during DRX activation is proposed. (See also...) Figure 3During the OnDuration period, the UE can save power by receiving DCI format (Format 1_1 / Format 0_1 / Format 0_2 / 1_2) to instruct the terminal to skip some PDCCH demodulation or by dynamically switching the UE's search space set (from a dense PDCCH monitoring opportunity (MO) configuration to a sparse PDCCH MO configuration).
[0173] Specifically, the candidate skip duration (e.g., 1 to 166 slots) is configured via pdcch-SkippingDurationList, and the index of the candidate search space (e.g., the group ID is either 0, 1, or 2) is configured via searchSpaceGroupIdList-r17. The PDCCH monitoring adaptation content in DCI is as follows:
[0174] (1) When searchSpaceGroupIdList-r17 is not configured, pdcch-SkippingDurationList is configured. pdcch-SkippingDurationList provides one or more duration candidate values.
[0175] If the PDCCH monitoring adaptation indicator is 1 bit
[0176] '0': no skipping
[0177] '1': The skipping duration is the first value in pdcch-SkippingDurationList.
[0178] If the PDCCH monitoring adaptation indicator is 2 bits:
[0179] '00': no skipping
[0180] '01': The skipping duration is the first value in pdcch-SkippingDurationList.
[0181] '10': The skipping duration is the second value in pdcch-SkippingDurationList.
[0182] '11': The skipping duration is the third value in pdcch-SkippingDurationList.
[0183] (2) When searchSpaceGroupIdList-r17 is configured, pdcch-SkippingDurationList is not configured.
[0184] If the PDCCH monitoring adaptation indicator is 1 bit:
[0185] '0': Monitor PDCCH on SSS#index 0
[0186] '1': Monitor PDCCH on SSS#index 1
[0187] If the PDCCH monitoring adaptation indicator is 2 bits:
[0188] '00': Monitor PDCCH on SSS#index 0
[0189] '01': Monitor PDCCH on SSS#index 1
[0190] '10': Monitor PDCCH on SSS#index 2
[0191] '11': reserved
[0192] (3) When searchSpaceGroupIdList-r17 and pdcch-SkippingDurationList are configured at the same time.
[0193] If pdcch-SkippingDurationList contains one value:
[0194] '00': Monitor PDCCH on SSS#index 0
[0195] '01': Monitor PDCCH on SSS#index 1
[0196] '10': The skipping duration is the value in pdcch-SkippingDurationList.
[0197] '11': reserved
[0198] If pdcch-SkippingDurationList contains 2 values
[0199] '00': Monitor PDCCH on SSS#index 0
[0200] '01': Monitor PDCCH on SSS#index 1
[0201] '01': The skipping duration is the first value in pdcch-SkippingDurationList.
[0202] '10': The skipping duration is the second value in pdcch-SkippingDurationList.
[0203] As can be seen from the above, DCI has a maximum of 2 bits indicating SSSG and skipping functions. When the skipping function is configured, a maximum of 3 durations (skip durations) can be configured; when only the switching function is configured, a maximum of 3 SSSGs can be configured. When both functions are configured simultaneously, the terminal can only execute one adaptive behavior; that is, the skipping function and SSSG switching cannot be executed simultaneously. Furthermore, to ensure the indication of both functions, the possible indication values for each function are reduced when both functions are configured simultaneously. For example, SSSG switching can only occur within SSS#index 0 and SSS#index 1, and listening can only be skipped within the first and second durations in pdcch-SkippingDurationList.
[0204] 4)MAC CE with DCI scrambled with C-RNTI
[0205] MAC CE with DCI scrambled with C-RNTI refers to the Media Access Control-Control Element (MAC CE) carrying a DCI that has been scrambled using the Cell-Radio Network Temporary Identifier (C-RNTI).
[0206] When the UE receives a DRX command, such as MAC CE with DCI scrambled with C-RNTI, drx-OndurationTimer and drx-InactivityTimer stop running.
[0207] 5) Scell dormancy indication
[0208] During the activation period, the indication is given using DCI format 0_1 / 0_3 / 1_1 / 1_3. The size of this indication field can be 0 to 5 bits and is configured by the base station. Each bit indicates a secondary cell group identifier (Scell groupID).
[0209] During the inactive period, DCI 2_6 is introduced for indication. As above, the size of this indication field can be 0 to 5 bits, which is configured by the base station. Each bit indicates an Scell groupID.
[0210] The existing technologies described above have several drawbacks: First, they involve multiple DCI formats, resulting in numerous and cumbersome configuration parameters. Second, existing energy-saving signaling is based on PDCCH, leading to high energy consumption for terminal PDCCH detection. Third, in DCI Format1_1 / Format 0_1 / Format 0_2 / 1_2, due to the limited number of bits (maximum 2 bits) for PDCCH monitoring adaptation, even if both skip and search space switching indications can be simultaneously provided, only one function can be indicated at a time, resulting in poor flexibility in energy-saving indication.
[0211] To address the aforementioned technical problems, embodiments of this application provide a PDCCH monitoring indication method, apparatus, device, and medium. The method and apparatus are based on the same application concept. Since the methods and apparatus solve problems in similar principles, their implementations can be mutually referenced, and repeated details will not be elaborated further.
[0212] like Figure 4 The diagram shown is a flowchart of the PDCCH monitoring indication method provided in this application embodiment. This method is applied to a terminal, meaning it is executed by the terminal. The method may include:
[0213] Step 401: Receive a first signal sent by the base station, wherein the first signal carries indication information and is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform.
[0214] Among them, the first signal generated based on the on / off keying OOK waveform and / or Orthogonal Frequency Division Multiplexing (OFDM) waveform is a low-power signal (this is determined by the characteristics of the OOK waveform and the OFDM waveform), and the terminal can receive the first signal sent by the base station with low power consumption. Optionally, the first signal is a low-power wake-up signal (LP-WUS) generated based on the OOK waveform and / or OFDM waveform.
[0215] Step 402: Determine the behavior of the terminal based on the instruction information; or, determine the behavior of the terminal based on the state of the terminal and the instruction information.
[0216] The PDCCH monitoring indication method of this application embodiment receives a first signal sent by the base station. This first signal is generated based on OOK waveform and / or OFDM waveform. Such a low-power signal terminal can receive the signal with low power consumption, thereby achieving energy saving. Moreover, the indication flexibility is improved by using the first signal to carry indication information in determining the behavior of the terminal.
[0217] It should be noted that the concepts of LP-WUS and Low Power Wake-Up Receiver (LP-WUR, LR) were introduced. See [link / reference] Figure 5 When data transmission occurs, the terminal receives LP-WUS via LP-WUR, activating the Main Radio (MR) to wake up from the ultra-deep sleep state to receive data. When no data transmission occurs, the MR is turned off, thus significantly improving terminal energy efficiency. For connected UEs, the UE does not enter the ultra-deep sleep state, but only the deep / light / micro sleep state. That is, LP-WUR receives LP-WUS, and the terminal determines whether the timer is on or off based on the LP-WUS indication. When the timer is indicated to be on, the MR transitions from the deep / light / micro sleep state to the wake-up state and begins PDCCH listening. When the timer is indicated to be off, the MR continues to sleep to achieve energy saving.
[0218] Optionally, the indication information includes one or more of the following:
[0219] The first indication information is used to indicate whether the terminal is listening to the Physical Downlink Control Channel (PDCCH).
[0220] The second instruction information is used to indicate whether the terminal has entered sleep mode;
[0221] The third instruction information is used to instruct the terminal to skip PDCCH listening within a preset time period. Here, if the instruction information includes the third instruction information, the premise is that the terminal is listening to PDCCH. If the terminal is listening to PDCCH, it further instructs the terminal to skip PDCCH listening within a preset time period.
[0222] The fourth instruction information is used to instruct the terminal to switch the search space to listen to the PDCCH. Here, if the instruction information includes the fourth instruction information, it is on the premise that the terminal is listening to the PDCCH. If the terminal is listening to the PDCCH, it further instructs the terminal to switch the search space SS to listen to the PDCCH.
[0223] The fifth instruction information is used to indicate whether the secondary cell has switched to the dormant bandwidth portion (BWP).
[0224] The sixth indication information is used to indicate whether the first timer is turned on; here, the first timer can be drx-OndurationTimer.
[0225] The seventh instruction is used to indicate whether the terminal has enabled PDCCH listening;
[0226] The eighth instruction is used to indicate whether the terminal should switch the PDCCH listening cycle.
[0227] Here, this application determines that the behavior of the terminal includes two schemes, as follows:
[0228] Option 1:
[0229] Determine the terminal's behavior based on the instructions.
[0230] The indication information may include one or more of the following:
[0231] The first indication information is used to indicate whether the terminal is listening to the Physical Downlink Control Channel (PDCCH).
[0232] The second instruction information is used to indicate whether the terminal has entered sleep mode;
[0233] The third instruction information is used to instruct the terminal to skip PDCCH monitoring within a preset time period;
[0234] The fourth instruction is used to instruct the terminal to switch search spaces to monitor the PDCCH;
[0235] The fifth instruction information is used to indicate whether the secondary cell has switched to the dormant bandwidth portion (BWP).
[0236] The sixth indication is used to indicate whether the first timer is on. Here, the first timer can be a drx-OndurationTimer.
[0237] In Scheme 1, the base station knows the number of indications related to PDCCH monitoring and the content of each indication. The base station can configure a monitoring location for each indication, and the terminal receives the indications based on the configured monitoring location. That is, regardless of the terminal's DRX state, the base station generates a first signal carrying all indications (i.e., all indications known to the base station).
[0238] Of course, the base station can also consider the terminal's DRX status, and the generated first signal carries a portion of all the indication information known to the base station.
[0239] Option 2:
[0240] The terminal's behavior is determined based on the terminal's status and the indicated information.
[0241] The indication information may include one or more of the following:
[0242] The second instruction information is used to indicate whether the terminal has entered sleep mode;
[0243] The fifth instruction information is used to indicate whether the secondary cell has switched to the dormant bandwidth portion (BWP).
[0244] The seventh instruction is used to indicate whether the terminal has enabled PDCCH listening;
[0245] The eighth instruction is used to indicate whether the terminal should switch the PDCCH listening cycle.
[0246] In any embodiment, the state of the terminal includes a first state or a second state;
[0247] The first state includes one or more of the following:
[0248] During DRX inactivity, such as when DRX is off: drx-OndurationTimer, drx-InactivityTimer, and new timer_lp-wus are disabled;
[0249] Do not listen to PDCCH in the predefined search space;
[0250] Do not listen to PDCCH on predefined PDCCH listening opportunities;
[0251] Do not receive synchronization signal block (SSB);
[0252] No Radio Resource Management (RRM) measurements were performed.
[0253] Do not send uplink signals;
[0254] The second state includes one or more of the following:
[0255] During DRX activation, such as during DRX on: drx-OndurationTime, drx-InactivityTimer, and newtimer_lp-wus run;
[0256] Listen to PDCCH;
[0257] The PDCCH is monitored at a predefined period, where the PDCCH monitoring period is the default monitoring period * X. The default monitoring period is the period of the search space pre-configured by the base station, and X takes values of 2, 3, 4, ..., which can be configured by higher layers.
[0258] Receive SSB;
[0259] Perform RRM measurement;
[0260] Send an uplink signal.
[0261] Optionally, the indication information is determined based on the state of the terminal or the discontinuous reception DRX state. It should be understood that, from the base station's perspective, when generating the first signal, the base station needs to determine the indication information carried by the first signal, and how this indication information is determined is based on the state of the terminal or the discontinuous reception DRX state. Specifically, in Scheme 1, the indication information can be determined based on the DRX state, and in Scheme 2, the indication information can be determined based on the state of the terminal.
[0262] Specifically, when the terminal is in the first state, the indication information includes fifth indication information and / or seventh indication information;
[0263] When the terminal is in the second state, the indication information includes at least one of the second indication information, the fifth indication information, and the eighth indication information;
[0264] When the terminal is configured with DRX and the DRX status is in the DRX inactive period, the indication information includes at least one of the first indication information, the fifth indication information, and the sixth indication information;
[0265] When the terminal is configured with DRX and the DRX status is DRX active, the indication information includes at least one of the second indication information, the third indication information, the fourth indication information, and the fifth indication information.
[0266] Optionally, the behavior of the terminal includes one or more of the following:
[0267] Do not listen to PDCCH;
[0268] Switch the PDCCH listening cycle;
[0269] SSB is not accepted;
[0270] RRM measurement is not performed.
[0271] Optionally, the first signal includes a function indication field, which carries the indication information. One function indication field may correspond to one piece of indication information, or one function indication field may indicate multiple pieces of indication information.
[0272] In some embodiments, step 401 above, receiving the first signal sent by the base station, includes:
[0273] According to the target period, receive the first signal sent by the base station.
[0274] Optionally, the target period is obtained through at least one of broadcast signals, predefined methods, higher-layer configurations, and downlink control information;
[0275] The target period is equal to 1 / N of the DRX period, where N is a positive integer; that is, the target period is bound to C-DRX; or,
[0276] The target period is equal to the PDCCH listening opportunity period * Y, where Y is a positive integer. That is, the target period is bound to the period of the PDCCH listening opportunity in the pre-configured search space; or...
[0277] The target period is a specific period, which can be 1ms, 2ms, etc.
[0278] In some embodiments, the method of this application further includes:
[0279] The indication information is obtained by demodulating the first signal according to the target configuration parameters.
[0280] Here, the target configuration parameters are configured by the base station for at least one terminal. The target configuration parameters include one or more of the following:
[0281] The length of the functional indication field of the first signal, here, the length of the functional indication field of the first signal may include one length or multiple lengths, when multiple lengths are included, each length corresponds to one functional indication field.
[0282] The payload size of the first signal can include multiple lengths, each corresponding to a functional indication field.
[0283] The indication method of the first signal includes a bitmap indication or a codepoint indication;
[0284] The signal structure of the first signal includes serial cascading or multi-level cascading. It should be noted that serial cascading refers to cascading multiple functional indication fields constituting the first signal after grouping them according to different categories but the same terminal. Multi-level cascading refers to cascading multiple functional indication fields constituting the first signal after grouping them according to the same category but different terminals. Here, the category to which the functional indication field belongs refers to the category to which the indication information belongs; each indication information corresponds to one category.
[0285] The encoding method of the first signal includes one of Manchester encoding, pulse width encoding, biphase-spaced code encoding, and Miller encoding.
[0286] The time-frequency resource mapping method of the first signal includes carrying 1 bit of information within an orthogonal frequency division multiplexing (OFDM) symbol, where 1 indicates that all resource elements are mapped to 1, and 0 indicates that all resource elements are mapped to 0; or, carrying M bits of information within an OFDM symbol, corresponding to M on / off keying OOK symbols, where M is 1, 2, or 4.
[0287] The target listening position parameters are determined by the signal structure of the first signal.
[0288] It should be noted that the above target configuration parameters are for at least one terminal, and the terminal side can determine the configuration parameters corresponding to the terminal based on the index.
[0289] In some embodiments, demodulating the first signal according to target configuration parameters to obtain the indication information includes:
[0290] The length of each functional indication field of the terminal is determined based on the length of the functional indication field of the first signal or the effective payload size of the first signal.
[0291] Based on the target listening location parameters, determine the listening location parameters of the terminal;
[0292] Based on the listening location parameters of the terminal and the length of each function indication field of the terminal, the indication information carried by each function indication field of the terminal is demodulated from the first signal.
[0293] In some embodiments, the method of this application further includes:
[0294] After determining the terminal's behavior according to the indicated information, the terminal's behavior is executed after a first effective duration; wherein, the first effective duration is determined according to the terminal's third state, the third state including stopping PDCCH listening or starting PDCCH listening.
[0295] When the terminal is in a state where PDCCH listening is stopped, the terminal performs its actions after a first effective duration determined by the base station. It should be noted that the base station can determine the first effective duration based on the terminal's report, and the terminal can choose to report a value from the following candidate values: {0.25, 0.5, 1, 2, 3, 6, 10, 20} ms.
[0296] When the terminal is in the state of enabling PDCCH listening, the first effective duration can be a number greater than or equal to 0, in milliseconds.
[0297] In some embodiments, step 402 above, determining the behavior of the terminal based on the terminal's state and the indication information, includes:
[0298] After determining the terminal's behavior based on the terminal's state and the indicated information, the terminal's behavior is executed after a second effective duration; wherein the second effective duration is determined by one or more of the following:
[0299] Different power-saving states of the terminal, such as 20 / 6 / 0ms;
[0300] The terminal's synchronization resource information, such as the number of SSBs;
[0301] Demodulation processing time of the first signal;
[0302] Does the first signal carry the auxiliary cell into hibernation?
[0303] It should be noted that the terminal and the base station pre-agree that the indication information matches the terminal's state. The terminal informs the base station of its current state, and the base station determines the indication information based on the current terminal state and generates a first signal carrying the indication information. If the terminal's state changes when it receives the first signal from the base station, it informs the base station of the changed state. The base station then determines the indication information again based on the changed state and generates a first signal carrying the indication information, which is then sent to the terminal. In other words, the demodulation of the first signal is related to the terminal's state; demodulation can only be successful when the current terminal state matches the terminal state corresponding to the first signal generated by the base station.
[0304] In some embodiments, the method of this application further includes:
[0305] When the instruction information includes third instruction information and fourth instruction information, the actions of the terminal corresponding to the third instruction information and the actions of the terminal corresponding to the fourth instruction information are executed according to the pre-configured or agreed execution rules.
[0306] The pre-configured or agreed-upon execution rule is the first execution rule: first execute the behavior of the terminal corresponding to the third instruction information, and then execute the behavior of the terminal corresponding to the fourth instruction information. That is, in the pre-configured search space, the terminal skips a certain number of PDCCH listening opportunities (i.e., skips PDCCH listening for a certain duration) according to the instruction of the third instruction information, and then listens for PDCCH MO in the target search space according to the instruction of the fourth instruction information.
[0307] Alternatively, the pre-configured or agreed-upon execution rule is the second execution rule: first execute the behavior of the terminal corresponding to the fourth instruction information, and then execute the behavior of the terminal corresponding to the third instruction information. That is, the terminal switches from the pre-configured search space to the target search space according to the fourth instruction information, skips PDCCH listening in the target search space, and then listens to PDCCH according to the period in the target search space.
[0308] The PDCCH monitoring indication method of this application embodiment receives a first signal sent by the base station. This first signal is generated based on OOK waveform and / or OFDM waveform. Such a low-power signal terminal can receive the signal with low power consumption, thereby achieving energy saving. Moreover, the indication flexibility is improved by using the first signal to carry indication information in determining the behavior of the terminal.
[0309] like Figure 6 The diagram shown is a flowchart of the PDCCH monitoring indication method provided in this application embodiment. This method is applied to a base station, meaning it is executed by the base station. The method may include:
[0310] Step 601: Send a first signal to the terminal, wherein the first signal carries indication information, the first signal is generated based on the on / off keying waveform and / or orthogonal frequency division multiplexing waveform, and the indication information is used to determine the behavior of the terminal.
[0311] It should be noted that this embodiment is the opposite side to the above-described terminal side, namely, the method embodiment on the base station side. For a detailed understanding and explanation of the relevant terms or steps, please refer to the description in the terminal side method section; it will not be repeated here.
[0312] The PDCCH monitoring indication method of this application sends a first signal to the terminal, which is generated based on an OOK waveform and / or an OFDM waveform. This low-power signal can be received by the terminal with low power consumption, thus achieving energy saving. Moreover, the indication flexibility is improved by using the first signal to carry indication information in determining the behavior of the terminal.
[0313] Optionally, the indication information includes one or more of the following:
[0314] The first indication information is used to indicate whether the terminal is listening to the Physical Downlink Control Channel (PDCCH).
[0315] The second instruction information is used to indicate whether the terminal has entered sleep mode;
[0316] The third instruction information is used to instruct the terminal to skip PDCCH monitoring within a preset time period;
[0317] The fourth instruction is used to instruct the terminal to switch search spaces to monitor the PDCCH;
[0318] The fifth instruction information is used to indicate whether the secondary cell has switched to the dormant bandwidth portion (BWP).
[0319] The sixth indication information is used to indicate whether the first timer is started;
[0320] The seventh instruction is used to indicate whether the terminal has enabled PDCCH listening;
[0321] The eighth instruction is used to indicate whether the terminal should switch the PDCCH listening cycle.
[0322] In some embodiments, when the first signal carries indication information, the indication information is determined based on the state of the terminal or the discontinuous reception DRX state;
[0323] The terminal's state includes a first state and a second state;
[0324] The first state includes one or more of the following:
[0325] During DRX off period;
[0326] Do not listen to PDCCH in the predefined search space;
[0327] Do not listen to PDCCH on predefined PDCCH listening opportunities;
[0328] Do not receive synchronization signal block (SSB);
[0329] No Radio Resource Management (RRM) measurements were performed.
[0330] Do not send uplink signals;
[0331] The second state includes one or more of the following:
[0332] During DRX on;
[0333] Listen to PDCCH;
[0334] Listen to the PDCCH at a predefined period;
[0335] Receive SSB;
[0336] Perform RRM measurement;
[0337] Send an uplink signal.
[0338] Based on the above embodiments, when the terminal is in the first state, the indication information includes seventh indication information and / or fifth indication information;
[0339] When the terminal is in the second state, the indication information includes at least one of the second indication information, the fifth indication information, and the eighth indication information;
[0340] When the terminal is configured with DRX and the DRX status is in the DRX inactive period, the indication information includes at least one of the first indication information, the fifth indication information, and the sixth indication information;
[0341] When the terminal is configured with DRX and the DRX status is DRX active, the indication information includes at least one of the second indication information, the third indication information, the fourth indication information, and the fifth indication information.
[0342] Optionally, the behavior of the terminal includes one or more of the following:
[0343] Do not listen to PDCCH;
[0344] Switch the PDCCH listening cycle;
[0345] SSB is not accepted;
[0346] RRM measurement is not performed.
[0347] Optionally, the first signal includes a function indication field, which is used to carry the indication information.
[0348] In some embodiments, the method of this application further includes:
[0349] Configure target configuration parameters for at least one terminal;
[0350] Based on the target configuration parameters, a first signal is generated. It should be noted that before generating the first signal, the base station determines the indication information carried by the first signal. Specifically, the indication information is determined based on the terminal's status or DRX status.
[0351] Sending the first signal to the terminal includes:
[0352] The first signal is sent to the terminal according to the target period.
[0353] Optionally, the target configuration parameters include one or more of the following:
[0354] The length of the functional indication field of the first signal;
[0355] The effective payload size of the first signal;
[0356] The indication method of the first signal includes a bitmap indication or a codepoint indication;
[0357] The signal structure of the first signal includes serial cascading or multi-level cascading. It should be noted that serial cascading refers to cascading multiple functional indication fields constituting the first signal after grouping them according to different categories but the same terminal. Multi-level cascading refers to cascading multiple functional indication fields constituting the first signal after grouping them according to the same category but different terminals. Here, the category to which the functional indication field belongs refers to the category to which the indication information belongs; each indication information corresponds to one category.
[0358] The encoding method of the first signal includes one of Manchester encoding, pulse width encoding, biphase-spaced code encoding, and Miller encoding.
[0359] The time-frequency resource mapping method of the first signal includes carrying 1 bit of information in one orthogonal frequency division multiplexing symbol, where 1 indicates that all resource elements are mapped to 1 and 0 indicates that all resource elements are mapped to 0; or, carrying M bits of information in one orthogonal frequency division multiplexing symbol, corresponding to M on / off keying symbols, where M is 1, 2 or 4.
[0360] The target listening position parameters are determined by the signal structure of the first signal.
[0361] It should be noted that the above target configuration parameters are for at least one terminal, and the terminal side can determine the configuration parameters corresponding to the terminal based on the index.
[0362] Optionally, the target period is equal to the DRX period 1 / N, where N is a positive integer; or,
[0363] The target period is equal to the PDCCH listening opportunity period * Y, where Y is a positive integer; or...
[0364] The target period is a specific period.
[0365] In some embodiments, configuring target configuration parameters for at least one terminal includes:
[0366] When the indication method of the first signal is configured as bitmap indication and the signal structure of the first signal is configured as serial concatenation, the total length of all categories of function indication fields corresponding to each terminal and the length of the first function indication field corresponding to each terminal are determined according to the length of the function indication field of the first signal or the effective payload size of the first signal.
[0367] Based on the total length of all category function indication fields corresponding to each terminal, the length of the first function indication field corresponding to each terminal, and the serial concatenation, the target monitoring position parameter is determined, and the target monitoring parameter is used as one of the target configuration parameters.
[0368] For easier understanding, please refer to the following Example 1.
[0369] In some embodiments, configuring target configuration parameters for at least one terminal includes:
[0370] When the indication method of the first signal is configured as bitmap indication and the signal structure of the first signal is configured as multi-level cascade, the total length of each category of function indication field and the length of each category of function indication field corresponding to each terminal are determined according to the length of the function indication field of the first signal or the effective payload size of the first signal.
[0371] Based on the total length of each category function indication field, the length of each category function indication field corresponding to each terminal, and the multi-level cascading, the target listening location parameter is determined, and the target listening location parameter is used as one of the target configuration parameters.
[0372] For easier understanding, please refer to Example 2 below.
[0373] The following examples illustrate the specific implementation process of the method of this application.
[0374] Example 1
[0375] This embodiment corresponds to Scheme 1 described above for determining the behavior of the terminal.
[0376] Base station side
[0377] Step 1: The base station configures first configuration parameters for at least one terminal and generates a first signal based on the first configuration parameters.
[0378] The first configuration parameter may include at least one of the following:
[0379] The length of the function indication field of the first signal may include at least one of the following: a first length (corresponding to the first function indication field corresponding to the first indication information), a second length (corresponding to the second function indication field corresponding to the second indication information), a third length (corresponding to the third function indication field corresponding to the third indication information), a fourth length (corresponding to the fourth function indication field corresponding to the fourth indication information), a fifth length (corresponding to the fifth function indication field corresponding to the fifth indication information), and a sixth length (corresponding to the sixth function indication field corresponding to the sixth indication information).
[0380] The indication method of the first signal is the first indication method, namely bitmap.
[0381] The signal structure of the first signal is the first signal structure, that is, serial cascaded. For example, such as Figure 7 As shown, the first signal includes a first function indicator field, a second function indicator field, a third function indicator field, and a fourth function indicator field, totaling 25 bits in length:
[0382] The first length, second length, third length, and fourth length of UE1 are 1 bit, 1 bit, 4 bits, and 3 bits, respectively.
[0383] The first length, second length, third length, and fourth length of UE2 are 1 bit, 1 bit, 4 bits, and 2 bits, respectively.
[0384] The first, second, third, and fourth lengths of UE3 are 1 bit, 1 bit, 3 bits, and 3 bits, respectively.
[0385] The encoding method for the first signal is one of the following: Manchester encoding, Pulse Width Interval (PIE) encoding, FM0 biphase interval encoding, or Miller encoding.
[0386] The Manchester encoding rule can be one of the following:
[0387]
[0388] For example, LP-WUS[1 0 0 1], then according to Manchester encoding rule 1, the subsequent LP-WUS = [01 1 01 0 0 1].
[0389] The time-frequency resource mapping method for the first signal is one of the following:
[0390] OOK-1: An OFDM symbol carries 1 bit of information. 1 indicates that all Resource Elements (REs) are mapped to 1; 0 indicates that all REs are mapped to 0. For example, an LP-WUS signal is an 8-symbol signal in the time domain.
[0391] OOK-4with M: An OFDM symbol carries M bits of information, corresponding to M OOK symbols, where M = 1 / 2 / 4. For example, M = 2, and the LP-WUS signal is a 4-symbol signal in the time domain.
[0392] The first listening position parameter, ps-PositionLP-WUS, can be one of the following: bit position, OFDM symbolor OOK symbol index. The first listening position parameter = {the second listening position parameter, the third listening position parameter}.
[0393] Since the indication method of the first signal in this embodiment is bitmap indication, and the signal structure of the first signal is serial concatenation, the length of the function indication field configured for UE1, UE2, and UE3 is determined by the following: the total length of the function indication field corresponding to UE1 is 9 bits, the total length of the function indication field corresponding to UE2 is 8 bits, and the total length of the function indication field corresponding to UE3 is 8 bits. The first function indication field corresponding to UE1 ( Figure 7 In the diagram, the length of the first function indicator field is 1 bit, meaning the starting listening bit position of UE1 is {0,1}; after 9 bits, the length of the first function indicator field corresponding to UE2 is 1 bit, meaning the starting listening bit position of UE2 is {9,10}; after 8 bits, the length of the first function indicator field corresponding to UE3 is 1 bit, meaning the starting listening bit position of UE3 is {17,18}. That is:
[0394] The starting listening bit position of UE1 is {0,1}
[0395] The starting listening bit position for UE2 is {9, 10}.
[0396] The starting listening bit position for UE3 is {17, 18}.
[0397] Step 2: The indication information carried by the first signal includes at least one of the following:
[0398] First function indicator field;
[0399] The following can be interpreted as meanings:
[0400] Indicator meaning 1: 0 indicates MR wake-up (i.e., indicates terminal wake-up); 1 indicates MR not wake-up (i.e., indicates terminal sleep).
[0401] Indicator Meaning 2: 1 indicates MR wake-up; 0 indicates MR not wake-up.
[0402] Second function indicator field;
[0403] The following can be interpreted as meanings:
[0404] Indication meaning 1: 0 indicates MR GTS (i.e., indicates that the terminal is sleeping); 1 indicates MR NOT GTS (i.e., indicates that the terminal is not sleeping and continues to listen to PDCCH).
[0405] Meaning 2: 1 indicates MR GTS; 0 indicates MR NOT GTS.
[0406] The third function indicator field indicates the time that the MR (i.e., the terminal) skips. The skip time set is configured by higher-level parameters, such as pdcch-SkippingDurationList-r19. The meaning of the third indicator field is as follows:
[0407]
[0408]
[0409] The fourth function indicator field indicates the MR (terminal) search space switching status. The search space index is configured by higher-level parameters, such as searchSpaceGroupIdList-LP-WUS. The meaning of the fourth function indicator field is as follows:
[0410]
[0411] Step 3: The base station sends the first signal according to the first cycle. The first cycle can be one of the following:
[0412] Binding with C-DRX: The first period is equal to the period of C-DRX / X, where X = 1, 2, 3, ...
[0413] The period is bound to the pre-configured PDCCH MO on the SS. The first period is equal to the PDCCH MO period * Y, where Y = 1, 2, 3, 4, ...
[0414] For dedicated periods: 1ms, 2ms, etc.
[0415] Terminal side
[0416] Step 1: The terminal receives the first signal sent by the base station according to the first cycle.
[0417] Specifically, the terminal's low-power receiver (LP-WUP) receives the first signal sent by the base station.
[0418] The terminal can receive the first cycle through at least one of the following: broadcast signals (such as System Information Block (SIB), Physical Broadcast Channel (PBCH), predefined methods, higher-layer configuration, and DCI indication.
[0419] The first cycle can have one of the following configurations:
[0420] Binding with C-DRX: The first period is equal to the period of C-DRX / X, where X = 1, 2, 3, ...
[0421] The period is bound to the pre-configured PDCCH MO on the SS. The first period is equal to the PDCCH MO period * Y, where Y = 1, 2, 3, 4, ...
[0422] For dedicated periods: 1ms, 2ms, etc.
[0423] The first signal can be a dedicated signal received by the terminal, such as LP-WUS.
[0424] Step 2: The terminal demodulates the first signal according to the first configuration parameters.
[0425] Specifically, the low-power receiver LP-WUP demodulates the first signal according to the first configuration parameters. The LP-WUP needs to consider the state of the master device MR in order to demodulate the first signal.
[0426] The state of MR can be either the fourth state or the fifth state. The fourth state is the state where PDCCH listening is stopped, that is, the state where PDCCH listening is not performed. The fifth state is the state where PDCCH listening is performed or during the first timer operation.
[0427] When the MR is in the fourth state, the low-power receiver LP-WUP starts demodulating the first signal from the second listening position parameter in the first listening position parameter ps-PositionLP-WUS. Then, the MR indicates whether to enable PDCCH listening according to the first function indication field. If the indication is to enable the timer, then after enabling, the MR will perform PDCCH listening according to the indication of the first signal, such as the indication of the second function indication field, the third function indication field, and the fourth function indication field.
[0428] When the MR is in state 5, the low-power receiver LP-WUP begins demodulating the first signal from the third listening position parameter in the first listening position parameter ps-PositionLP-WUS. Then, the MR performs PDCCH listening according to the instructions in the second, third, and fourth function indication fields.
[0429] Step 3: The MR determines the terminal's behavior based on the indication information carried by the first signal.
[0430] Step 4: MR executes the corresponding PDCCH listening behavior of the third function instruction domain and the fourth function instruction domain according to the pre-configured or predetermined execution rules.
[0431] The execution rule can be one of the following:
[0432] First execution rule: Execute the third function instruction field first, then execute the fourth function instruction field. That is, first, according to the instruction of the third function instruction field, skip the indicated slot on the pre-configured SS, and then on the target SS, perform PDCCH listening according to the target SS's cycle. See [link to relevant documentation]. Figure 9 As shown.
[0433] The second execution rule is: execute the fourth function instruction field first, then execute the third function instruction field. That is, first switch the SS according to the instruction of the fourth function instruction field, then skip the PDCCH on the target SS according to the instruction of the third function instruction field, and then listen to the PDCCH on the target SS according to the period on the target SS.
[0434] Example 2
[0435] This embodiment corresponds to the first scheme described above for determining terminal behavior.
[0436] Base station side
[0437] Step 1: The base station configures first configuration parameters for at least one terminal and generates a first signal based on the first configuration parameters.
[0438] The first configuration parameter may include at least one of the following:
[0439] The length of the function indication field of the first signal may include at least one of the following: a first length (corresponding to the first function indication field corresponding to the first indication information), a second length (corresponding to the second function indication field corresponding to the second indication information), a third length (corresponding to the third function indication field corresponding to the third indication information), a fourth length (corresponding to the fourth function indication field corresponding to the fourth indication information), a fifth length (corresponding to the fifth function indication field corresponding to the fifth indication information), and a sixth length (corresponding to the sixth function indication field corresponding to the sixth indication information).
[0440] The indication method of the first signal is the first indication method, namely bitmap.
[0441] The signal structure of the first signal is the signal structure of the second signal, that is, multiple cascaded stages. For example, as follows: Figure 8 As shown, the first signal includes a first function indicator field, a second function indicator field, a third function indicator field, and a fourth function indicator field, totaling 25 bits in length:
[0442] The first length, second length, third length, and fourth length of UE1 are 1 bit, 1 bit, 4 bits, and 3 bits, respectively.
[0443] The first length, second length, third length, and fourth length of UE2 are 1 bit, 1 bit, 4 bits, and 2 bits, respectively.
[0444] The first, second, third, and fourth lengths of UE3 are 1 bit, 1 bit, 3 bits, and 3 bits, respectively.
[0445] The encoding method for the first signal is one of the following: Manchester encoding, Pulse Width Interval (PIE) encoding, FM0 biphase interval encoding, or Miller encoding.
[0446] The Manchester encoding rule can be one of the following:
[0447]
[0448] For example, LP-WUS[1 0 0 1], then according to Manchester encoding rule 1, the subsequent LP-WUS = [01 1 01 0 0 1].
[0449] The time-frequency resource mapping method for the first signal is one of the following:
[0450] OOK-1: An OFDM symbol carries 1 bit of information. 1 indicates that all Resource Elements (REs) are mapped to 1; 0 indicates that all REs are mapped to 0. For example, an LP-WUS signal is an 8-symbol signal in the time domain.
[0451] OOK-4with M: An OFDM symbol carries M bits of information, corresponding to M OOK symbols, where M = 1 / 2 / 4. For example, M = 2, and the LP-WUS signal is a 4-symbol signal in the time domain.
[0452] The first listening position parameter, ps-PositionLP-WUS, can be one of the following: bit position, OFDM symbolor OOK symbol index. The first listening position parameter = {second listening position parameter, third listening position parameter, fourth listening position parameter, fifth listening position parameter}.
[0453] Since the indication method of the first signal in this embodiment is bitmap indication, and the signal structure of the first signal is multi-level cascaded, then
[0454] The total length of each category function indication field corresponding to UE1, UE2 and UE3 is as follows: the total length of the first function indication field is 3 bits, the total length of the second function indication field is 3 bits, the total length of the third function indication field is 11 bits, and the total length of the fourth function indication field is 8 bits.
[0455] And the length of the function indication field for each category of the terminal (for example, the length of the first function indication field for UE1 is 1 bit, the length of the second function indication field is 1 bit, the length of the third function indication field is 4 bits, and the length of the fourth function indication field is 3 bits; the length of the first function indication field for UE2 is 1 bit, the length of the second function indication field is 1 bit, the length of the third function indication field is 4 bits, and the length of the fourth function indication field is 2 bits; the length of the first function indication field for UE3 is 1 bit, the length of the second function indication field is 1 bit, the length of the third function indication field is 3 bits, and the length of the fourth function indication field is 3 bits).
[0456] Since it is a multi-level cascade, the first listening position parameter is determined by using the total length of the function indication field of each category corresponding to UE1, UE2 and UE3, and the length of the function indication field of each category corresponding to the terminal.
[0457] That is, the length of the first function indicator field corresponding to UE1 is 1 bit, the length of the first function indicator field corresponding to UE2 is 1 bit, the length of the first function indicator field corresponding to UE3 is 1 bit, then the listening bit position of the first function indicator field corresponding to UE1 is 0, the listening bit position of the first function indicator field corresponding to UE2 is 1, and the listening bit position of the first function indicator field corresponding to UE3 is 2.
[0458] The listening bit position of the first function indicator field corresponding to UE1 is 0, and the total length of the first function indicator field is 3 bits. Therefore, the listening bit position of the second function indicator field corresponding to UE1 is 0+3=3; the length of the second function indicator field corresponding to UE1 is 1 bit, and the listening bit position of the second function indicator field corresponding to UE2 is 3+1=4; the length of the second function indicator field corresponding to UE2 is 1 bit, and the listening bit position of the second function indicator field corresponding to UE3 is 4+1=5.
[0459] The listening bit position of the second function indicator field corresponding to UE1 is 3, and the total length of the second function indicator field is 3 bits. Therefore, the listening bit position of the third function indicator field corresponding to UE1 is 3+3=6; the length of the third function indicator field corresponding to UE1 is 4 bits, and the listening bit position of the third function indicator field corresponding to UE2 is 6+4=10; the length of the third function indicator field corresponding to UE2 is 4 bits, and the listening bit position of the third function indicator field corresponding to UE3 is 10+4=14 bits.
[0460] The listening bit position of the third function indicator field corresponding to UE1 is 6, and the total length of the third function indicator field is 11 bits. Therefore, the listening bit position of the fourth function indicator field corresponding to UE1 is 6 + 11 = 17; the length of the fourth function indicator field corresponding to UE1 is 3 bits, so the listening bit position of the fourth function indicator field corresponding to UE2 is 17 + 3 = 20; the length of the fourth function indicator field corresponding to UE2 is 2 bits, so the listening bit position of the fourth function indicator field corresponding to UE3 is 20 + 2 = 22. That is:
[0461] The starting listening bit position of UE1 is {0,3,6,17}.
[0462] The starting listening bit position for UE2 is {1, 4, 10, 20}.
[0463] The starting listening bit position for UE3 is {2, 5, 14, 22}.
[0464] Step 2: The indication information carried by the first signal includes at least one of the following, see Example 1, Step 2 on the base station side.
[0465] Step 3: The base station sends the first signal according to the first cycle. For details, please refer to Example 1, Step 3 on the base station side.
[0466] Terminal side
[0467] Step 1: The terminal receives the first signal sent by the base station according to the first cycle. (Same as Step 1 on the terminal side in Embodiment 1)
[0468] Step 2: The terminal demodulates the first signal according to the first configuration parameters.
[0469] Specifically, the low-power receiver LP-WUP demodulates the first signal according to the first configuration parameters. The LP-WUP needs to consider the state of the master device MR in order to demodulate the first signal.
[0470] The state of MR can be either the fourth state or the fifth state. The fourth state is the state where PDCCH listening is stopped, that is, the state where PDCCH listening is not performed. The fifth state is the state where PDCCH listening is performed or during the first timer operation.
[0471] When the MR is in the fourth state, the low-power receiver LP-WUP decodes the first signal based on the second, third, fourth, and fifth listening position parameters, as well as the length of each function indicator field (i.e., the first length, second length, third length, and fourth length). If the first function indicator field indicates that PDCCH listening is enabled, then after enabling it, the MR performs PDCCH listening based on the indications of the second, third, and fourth function indicator fields.
[0472] When the MR is in state 5, the low-power receiver LP-WUP decodes the first signal based on the second, third, fourth, and fifth listening position parameters, as well as the length of each function indicator field (i.e., the first length, second length, third length, and fourth length). The MR listens for the PDCCH based on the indications of the second, third, and fourth function indicator fields.
[0473] Step 3: The MR determines the terminal's behavior based on the indication information carried by the first signal.
[0474] Step 4: The MR executes the corresponding PDCCH monitoring behavior for the third and fourth function indication domains according to pre-configured or predetermined execution rules. See Example 1, Step 4 on the terminal side for details.
[0475] Example 3
[0476] This embodiment corresponds to Scheme 1 described above for determining the behavior of the terminal.
[0477] Base station side:
[0478] Step 1: The base station configures first configuration parameters for at least one terminal and generates a first signal based on the first configuration parameters.
[0479] The first configuration parameter may include at least one of the following:
[0480] The length of the function indicator (identifier) field of the first signal and the payload size of the first signal.
[0481] Specifically, based on the function indication (identifier) field of the first signal (which can be 0 or 1), the first signal carries corresponding indication information during the DRX activation or deactivation period.
[0482] 0: Indicates that the terminal is in the DRX inactive period. The payload size of the first signal may include at least one of the following lengths: the first length corresponding to the first function indication field, the fifth length corresponding to the fifth function indication field, and the sixth length corresponding to the sixth function indication field.
[0483] 1: Indicates that the terminal is in the activation period. The payload size of the first signal may include at least one of the following lengths: the second length corresponding to the second indication field, the third length corresponding to the third function indication field, the fourth length corresponding to the fourth function indication field, and the fifth length corresponding to the fifth function indication field.
[0484] The indication method for the first signal is bitmap.
[0485] The signal structure of the first signal is a serial cascaded structure. For example, as shown... Figure 10 As shown, when the function indication (identifier) field is 0, the first signal includes a first function indication field; when the function indication (identifier) field is 1, the first signal includes a second function indication field, a third function indication field, and a fourth function indication field.
[0486] The first, second, third, and fourth lengths of UE1 are 1 bit, 1 bit, 4 bits, and 3 bits, respectively.
[0487] The first, second, third, and fourth lengths of UE2 are 1 bit, 1 bit, 4 bits, and 2 bits, respectively.
[0488] The first, second, third, and fourth lengths of UE3 are 1 bit, 1 bit, 3 bits, and 3 bits respectively.
[0489] Here, the function indication (identifier) field of the first signal can make the first signal carry only the indication information corresponding to the DRX activation period or the DRX inactivation period. This can reduce the payload size of the first signal, and the terminal can detect the corresponding indication content according to the function indication (identifier) field of the first signal.
[0490] It should be noted that the other steps are similar to those in Embodiment 1 and Embodiment 2. For example, the ps-PositionLP-WUS configures the corresponding listening position parameters according to the signal structure, which will not be repeated here.
[0491] Example 4
[0492] This embodiment corresponds to the second scheme described above for determining the behavior of the terminal.
[0493] The terminal receives the first signal sent by the base station according to the second cycle. When the MR is in the first state, the indication information carried by the first signal includes the seventh indication information (used to indicate whether the terminal enables PDCCH monitoring) and the fifth indication information (used to indicate whether the secondary cell switches to a dormant BWP). According to the indication of the first signal, the terminal performs PDCCH monitoring behavior after the second effective duration. When the MR is in the second state, the indication information carried by the first signal includes the second indication information (used to indicate whether the terminal enters sleep mode), the eighth indication information (used to indicate whether the terminal switches the PDCCH monitoring cycle), and the fifth indication information (used to indicate whether the secondary cell switches to a dormant BWP). According to the indication of the first signal, the terminal performs PDCCH monitoring behavior and secondary cell dormant indication after the second effective duration.
[0494] Base station side
[0495] Step 1: The base station configures a second configuration parameter for at least one terminal and generates a first signal based on the second configuration parameter.
[0496] The second configuration parameter may include at least one of the following:
[0497] The length of the functional indication field of the first signal may include a first length (the functional indication field corresponding to the seventh indication information (seventh functional indication field)) and a second length (the functional indication field corresponding to the fifth indication information (fifth functional indication field)).
[0498] The indication method of the first signal is the first indication method, namely bitmap.
[0499] The signal structure of the first signal is the first signal structure, that is, serial cascaded. For example, such as Figure 11 As shown, the first signal includes a seventh function indication field and a fifth function indication field:
[0500] UE1 has a first length of 2 bits and a second length of 4 bits.
[0501] UE2 has a first length of 2 bits and a second length of 4 bits.
[0502] The first length of UE3 is 2 bits, and the second length is 4 bits.
[0503] The second listening position parameter, ps-PositionLP-WUS, can be one of the following: bit position, OFDM symbolor, or OK symbol index. For example, UE1: ps-PositionLP-WUS = 0, UE2: ps-PositionLP-WUS = 6, UE3: ps-PositionLP-WUS = 12.
[0504] The second effective duration can be determined based on at least one of the following:
[0505] Different power-saving states of the terminal, such as 20 / 6 / 0ms;
[0506] The terminal's synchronization resource information, such as the number of SSBs;
[0507] Demodulation processing time of the first signal;
[0508] Does the first signal carry the auxiliary cell into hibernation?
[0509] Step 2: The meaning of the indication information carried by the first signal:
[0510] The first state can be at least one of the following:
[0511] During DRX off: drx-OndurationTimer, drx-InactivityTimer, and new timer_lp-wus are turned off; among them, drx-OndurationTimer and drx-InactivityTimer are configured by DRX-Config, and new timer_lp-wus is a dedicated timer introduced by the first signal.
[0512] Do not listen to PDCCH on the predefined search space; where the predefined search space can be a specific search space (USS) and / or a general search space (CSS).
[0513] Do not listen to PDCCH on predefined PDCCH listening opportunities;
[0514] SSB is not accepted;
[0515] RRM measurement is not performed;
[0516] No uplink signal is sent.
[0517] The second state can be at least one of the following:
[0518] During DRX on: drx-OndurationTime, drx-InactivityTimer, and new timer_lp-wus run;
[0519] Listen to PDCCH;
[0520] Listen to PDCCH with predefined configuration information, where the configuration information can be a predefined period or a predefined search space;
[0521] Receive SSB;
[0522] Perform RRM measurement;
[0523] Send an uplink signal.
[0524] When MR is in the first state, the meaning of the seventh indication information of the first signal (used to indicate whether the terminal has enabled PDCCH monitoring) can be as follows:
[0525]
[0526]
[0527] When MR is in the second state, the indication information carried by the first signal includes the second indication information (used to indicate whether the terminal has entered sleep mode) and the fifth indication information (used to indicate whether the secondary cell has switched to hibernation BWP).
[0528] The meaning of the second instruction information can be as follows:
[0529]
[0530] Among them, defaultPeriodicity and pdcch-SkippingDurationList-LP-WUS are high-level parameters.
[0531] The meaning of the fifth instruction information can be as follows:
[0532]
[0533] Step 3: The base station sends the first signal according to the second cycle. The second cycle can be one of the following:
[0534] Binding with C-DRX: The first period is equal to the period of C-DRX / X, where X = 1, 2, 3, ...
[0535] The period is bound to the pre-configured PDCCH MO on the SS. The first period is equal to the PDCCH MO period * Y, where Y = 1, 2, 3, 4, ...
[0536] For dedicated periods: 1ms, 2ms, etc.
[0537] Terminal side
[0538] Step 1: The terminal receives the first signal sent by the base station according to the second cycle.
[0539] Specifically, the terminal's low-power receiver (LP-WUP) receives the first signal sent by the base station.
[0540] The terminal can receive the second cycle through at least one of the following: broadcast signals (such as System Information Block (SIB), Physical Broadcast Channel (PBCH), predefined methods, higher-layer configuration, and DCI indication.
[0541] The second cycle can be configured as follows:
[0542] Binding with C-DRX: The first period is equal to the period of C-DRX / X, where X = 1, 2, 3, ...
[0543] The period is bound to the pre-configured PDCCH MO on the SS. The first period is equal to the PDCCH MO period * Y, where Y = 1, 2, 3, 4, ...
[0544] For dedicated periods: 1ms, 2ms, etc.
[0545] The first signal can be a dedicated signal received by the terminal, such as LP-WUS.
[0546] Step 2: The terminal demodulates the first signal according to the second configuration parameters.
[0547] When MR is in the first state, the low-power receiver LP-WUP decodes the first signal according to the second listening position parameter ps-PositionLP-WUS.
[0548] The meaning of the seventh indication information of the first signal (used to indicate whether the terminal has enabled PDCCH monitoring) can be as follows:
[0549]
[0550]
[0551] When MR is in the second state, the low-power receiver LP-WUP decodes the first signal according to the second listening position parameter ps-PositionLP-WUS.
[0552] The meaning of the second instruction information can be as follows:
[0553]
[0554] The meaning of the fifth instruction information can be as follows:
[0555]
[0556] For example, see Figure 12 In the first state, the terminal wakes up the MR and listens for PDCCH according to a period of (defaultPeriodicity*2). In the second state, the terminal listens for PDCCH according to a period of (defaultPeriodicity*3).
[0557] The first state can be at least one of the following:
[0558] During DRX off: drx-OndurationTimer, drx-InactivityTimer, and new timer_lp-wus are turned off;
[0559] Do not listen to PDCCH in the predefined search space;
[0560] Do not listen to PDCCH on predefined PDCCH listening opportunities;
[0561] SSB is not accepted;
[0562] RRM measurement is not performed;
[0563] No uplink signal is sent.
[0564] The second state can be at least one of the following:
[0565] During DRX on: drx-OndurationTime, drx-InactivityTimer, and new timer_lp-wus run;
[0566] Listen to PDCCH;
[0567] Listen to PDCCH with predefined configuration information, where the configuration information can be a predefined period or a predefined search space;
[0568] Receive SSB;
[0569] Perform RRM measurement;
[0570] Send an uplink signal.
[0571] Step 3: The MR determines the terminal's behavior based on the indication information carried by the first signal.
[0572] like Figure 13 As shown, this application embodiment also provides a terminal, including a transceiver 1300, a memory 1320, a processor 1310, and a computer program stored in the memory 1320 and executable on the processor 1310; the transceiver 1300 is used to receive and send data under the control of the processor 1310; the processor 1310 is used to read the program in the memory 1320 and execute the following processes:
[0573] The transceiver 1300 receives a first signal sent by the base station, wherein the first signal carries indication information and is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform.
[0574] The behavior of the terminal is determined based on the indicated information; or, the behavior of the terminal is determined based on the state of the terminal and the indicated information.
[0575] Among them, Figure 13The bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 1310 and memory represented by memory 1320 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 1300 can be multiple components, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. For different user equipment, the user interface 1330 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.
[0576] The processor 1310 is responsible for managing the bus architecture and general processing, and the memory 1320 can store the data used by the processor 1310 when performing operations.
[0577] Optionally, the processor 1310 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.
[0578] The processor 1310 executes any of the methods provided in the embodiments of this application according to the obtained executable instructions by calling program instructions stored in the memory. The processor 1310 and the memory 1320 may also be physically separated.
[0579] In some embodiments, the indication information includes one or more of the following:
[0580] The first indication information is used to indicate whether the terminal is listening to the Physical Downlink Control Channel (PDCCH).
[0581] The second instruction information is used to indicate whether the terminal has entered sleep mode;
[0582] The third instruction information is used to instruct the terminal to skip PDCCH monitoring within a preset time period;
[0583] The fourth instruction is used to instruct the terminal to switch search spaces to monitor the PDCCH;
[0584] The fifth instruction information is used to indicate whether the secondary cell has switched to the dormant bandwidth portion (BWP).
[0585] The sixth indication information is used to indicate whether the first timer is started;
[0586] The seventh instruction is used to indicate whether the terminal has enabled PDCCH listening;
[0587] The eighth instruction is used to indicate whether the terminal should switch the PDCCH listening cycle.
[0588] In some embodiments, the state of the terminal includes a first state or a second state;
[0589] The first state includes one or more of the following:
[0590] During DRX inactivity;
[0591] Do not listen to PDCCH in the predefined search space;
[0592] Do not listen to PDCCH on predefined PDCCH listening opportunities;
[0593] Do not receive synchronization signal block (SSB);
[0594] No Radio Resource Management (RRM) measurements were performed.
[0595] Do not send uplink signals;
[0596] The second state includes one or more of the following:
[0597] During DRX activation;
[0598] Listen to PDCCH;
[0599] Listen to the PDCCH at a predefined period;
[0600] Receive SSB;
[0601] Perform RRM measurement;
[0602] Send an uplink signal.
[0603] In some embodiments, the indication information is determined based on the state of the terminal or the discontinuous reception of DRX.
[0604] In some embodiments, when the terminal is in the first state, the indication information includes fifth indication information and / or seventh indication information;
[0605] When the terminal is in the second state, the indication information includes at least one of the second indication information, the fifth indication information, and the eighth indication information;
[0606] When the terminal is configured with DRX and the DRX status is in the DRX inactive period, the indication information includes at least one of the first indication information, the fifth indication information, and the sixth indication information;
[0607] When the terminal is configured with DRX and the DRX status is DRX active, the indication information includes at least one of the second indication information, the third indication information, the fourth indication information, and the fifth indication information.
[0608] In some embodiments, the behavior of the terminal includes one or more of the following:
[0609] Do not listen to PDCCH;
[0610] Switch the PDCCH listening cycle;
[0611] SSB is not accepted;
[0612] RRM measurement is not performed.
[0613] In some embodiments, the first signal includes a function indication field, which carries the indication information.
[0614] In some embodiments, the transceiver 1300 is further configured to:
[0615] According to the target period, receive the first signal sent by the base station.
[0616] In some embodiments, the target period is obtained through at least one of broadcast signals, predefined methods, higher-layer configurations, and downlink control information;
[0617] The target period is equal to 1 / N of the DRX period, where N is a positive integer; or,
[0618] The target period is equal to the PDCCH listening opportunity period * Y, where Y is a positive integer; or...
[0619] The target period is a specific period.
[0620] In some embodiments, the processor 1310 is further configured to:
[0621] The indication information is obtained by demodulating the first signal according to the target configuration parameters; wherein the target configuration parameters include one or more of the following:
[0622] The length of the functional indication field of the first signal;
[0623] The effective payload size of the first signal;
[0624] The indication method of the first signal includes a bitmap indication or a codepoint indication;
[0625] The signal structure of the first signal includes serial cascade or multi-stage cascade;
[0626] The encoding method of the first signal includes one of Manchester encoding, pulse width encoding, biphase-spaced code encoding, and Miller encoding.
[0627] The time-frequency resource mapping method of the first signal includes carrying 1 bit of information in one orthogonal frequency division multiplexing symbol, where 1 indicates that all resource elements are mapped to 1 and 0 indicates that all resource elements are mapped to 0; or, carrying M bits of information in one orthogonal frequency division multiplexing symbol, corresponding to M on / off keying symbols, where M is 1, 2 or 4.
[0628] The target listening position parameters are determined by the signal structure of the first signal.
[0629] In some embodiments, the processor 1310 is further configured to:
[0630] The length of each functional indication field of the terminal is determined based on the length of the functional indication field of the first signal or the effective payload size of the first signal.
[0631] Based on the target listening location parameters, determine the listening location parameters of the terminal;
[0632] Based on the listening location parameters of the terminal and the length of each function indication field of the terminal, the indication information carried by each function indication field of the terminal is demodulated from the first signal.
[0633] In some embodiments, the processor 1310 is further configured to:
[0634] After determining the terminal's behavior according to the indicated information, the terminal's behavior is executed after a first effective duration; wherein, the first effective duration is determined according to the terminal's third state, the third state including stopping PDCCH listening or starting PDCCH listening.
[0635] In some embodiments, the processor 1310 is further configured to:
[0636] After determining the terminal's behavior based on the terminal's state and the indicated information, the terminal's behavior is executed after a second effective duration; wherein the second effective duration is determined by one or more of the following:
[0637] Different energy-saving states of the terminal;
[0638] Terminal synchronization resource information;
[0639] Demodulation processing time of the first signal;
[0640] Does the first signal carry the auxiliary cell into hibernation?
[0641] In some embodiments, the processor 1310 is further configured to:
[0642] When the instruction information includes third instruction information and fourth instruction information, the actions of the terminal corresponding to the third instruction information and the actions of the terminal corresponding to the fourth instruction information are executed according to the pre-configured or agreed execution rules.
[0643] It should be noted that the apparatus provided in this application embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.
[0644] like Figure 14 As shown in the illustration, this application also provides a PDCCH monitoring indication device, comprising:
[0645] The receiving unit 1401 is used to receive a first signal sent by the base station, wherein the first signal carries indication information and is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform;
[0646] The first processing unit 1402 is configured to determine the behavior of the terminal based on the instruction information; or, based on the state of the terminal and the instruction information, determine the behavior of the terminal.
[0647] Optionally, the indication information includes one or more of the following:
[0648] The first indication information is used to indicate whether the terminal is listening to the Physical Downlink Control Channel (PDCCH).
[0649] The second instruction information is used to indicate whether the terminal has entered sleep mode;
[0650] The third instruction information is used to instruct the terminal to skip PDCCH monitoring within a preset time period;
[0651] The fourth instruction is used to instruct the terminal to switch search spaces to monitor the PDCCH;
[0652] The fifth instruction information is used to indicate whether the secondary cell has switched to the dormant bandwidth portion (BWP).
[0653] The sixth indication information is used to indicate whether the first timer is started;
[0654] The seventh instruction is used to indicate whether the terminal has enabled PDCCH listening;
[0655] The eighth instruction is used to indicate whether the terminal should switch the PDCCH listening cycle.
[0656] Optionally, the state of the terminal includes a first state or a second state;
[0657] The first state includes one or more of the following:
[0658] During DRX inactivity;
[0659] Do not listen to PDCCH in the predefined search space;
[0660] Do not listen to PDCCH on predefined PDCCH listening opportunities;
[0661] Do not receive synchronization signal block (SSB);
[0662] No Radio Resource Management (RRM) measurements were performed.
[0663] Do not send uplink signals;
[0664] The second state includes one or more of the following:
[0665] During DRX activation;
[0666] Listen to PDCCH;
[0667] Listen to the PDCCH at a predefined period;
[0668] Receive SSB;
[0669] Perform RRM measurement;
[0670] Send an uplink signal.
[0671] Optionally, the indication information is determined based on the state of the terminal or the discontinuous reception of DRX.
[0672] Optionally, when the terminal is in the first state, the indication information includes fifth indication information and / or seventh indication information;
[0673] When the terminal is in the second state, the indication information includes at least one of the second indication information, the fifth indication information, and the eighth indication information;
[0674] When the terminal is configured with DRX and the DRX status is in the DRX inactive period, the indication information includes at least one of the first indication information, the fifth indication information, and the sixth indication information;
[0675] When the terminal is configured with DRX and the DRX status is DRX active, the indication information includes at least one of the second indication information, the third indication information, the fourth indication information, and the fifth indication information.
[0676] Optionally, the behavior of the terminal includes one or more of the following:
[0677] Do not listen to PDCCH;
[0678] Switch the PDCCH listening cycle;
[0679] SSB is not accepted;
[0680] RRM measurement is not performed.
[0681] Optionally, the first signal includes a function indication field, which is used to carry the indication information.
[0682] Optionally, the receiving unit 1401 is specifically used for:
[0683] According to the target period, receive the first signal sent by the base station.
[0684] Optionally, the target period is obtained through at least one of broadcast signals, predefined methods, higher-layer configurations, and downlink control information;
[0685] The target period is equal to 1 / N of the DRX period, where N is a positive integer; or,
[0686] The target period is equal to the PDCCH listening opportunity period * Y, where Y is a positive integer; or...
[0687] The target period is a specific period.
[0688] Optionally, the apparatus in this application embodiment further includes:
[0689] The second processing unit is configured to demodulate the first signal according to the target configuration parameters to obtain the indication information; wherein the target configuration parameters include one or more of the following:
[0690] The length of the functional indication field of the first signal;
[0691] The effective payload size of the first signal;
[0692] The indication method of the first signal includes a bitmap indication or a codepoint indication;
[0693] The signal structure of the first signal includes serial cascade or multi-stage cascade;
[0694] The encoding method of the first signal includes one of Manchester encoding, pulse width encoding, biphase-spaced code encoding, and Miller encoding.
[0695] The time-frequency resource mapping method of the first signal includes carrying 1 bit of information in one orthogonal frequency division multiplexing symbol, where 1 indicates that all resource elements are mapped to 1 and 0 indicates that all resource elements are mapped to 0; or, carrying M bits of information in one orthogonal frequency division multiplexing symbol, corresponding to M on / off keying symbols, where M is 1, 2 or 4.
[0696] The target listening position parameters are determined by the signal structure of the first signal.
[0697] Optionally, the second processing unit is specifically used for:
[0698] The length of each functional indication field of the terminal is determined based on the length of the functional indication field of the first signal or the effective payload size of the first signal.
[0699] Based on the target listening location parameters, determine the listening location parameters of the terminal;
[0700] Based on the listening location parameters of the terminal and the length of each function indication field of the terminal, the indication information carried by each function indication field of the terminal is demodulated from the first signal.
[0701] Optionally, the apparatus in this application embodiment further includes:
[0702] The third processing unit is configured to execute the terminal's behavior after determining the terminal's behavior according to the instruction information, after a first effective duration; wherein the first effective duration is determined according to the terminal's third state, the third state including stopping PDCCH listening or starting PDCCH listening.
[0703] Optionally, the first processing unit 1402 is specifically used for:
[0704] After determining the terminal's behavior based on the terminal's state and the indicated information, the terminal's behavior is executed after a second effective duration; wherein the second effective duration is determined by one or more of the following:
[0705] Different energy-saving states of the terminal;
[0706] Terminal synchronization resource information;
[0707] Demodulation processing time of the first signal;
[0708] Does the first signal carry the auxiliary cell into hibernation?
[0709] Optionally, the apparatus in this application embodiment further includes:
[0710] The fourth processing unit is configured to, when the indication information includes the third indication information and the fourth indication information, execute the behavior of the terminal corresponding to the third indication information and the behavior of the terminal corresponding to the fourth indication information according to the pre-configured or agreed execution rules.
[0711] It should be noted that the division of units in the embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.
[0712] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
[0713] It should be noted that the apparatus provided in this application embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.
[0714] like Figure 15 As shown in the illustration, this application embodiment also provides a base station, including: a transceiver 1500, a memory 1520, a processor 1510, and a computer program stored in the memory 1520 and executable on the processor 1510; the transceiver 1500 is used to transmit and receive data under the control of the processor 1510, and to perform the following operations:
[0715] A first signal is sent to the terminal, wherein the first signal carries indication information, the first signal is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform, and the indication information is used to determine the behavior of the terminal.
[0716] Among them, Figure 15 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 1510 and memory represented by memory 1520 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 1500 can be multiple elements, including transmitters and receivers, providing units for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, and other transmission media.
[0717] Processor 1510 is responsible for managing the bus architecture and general processing, while memory 1520 can store data used by processor 1510 during operation.
[0718] The processor 1510 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.
[0719] The processor 1510 executes any of the methods described in the embodiments of this application according to the obtained executable instructions by calling program instructions stored in the memory. The processor 1510 and the memory 1520 may also be physically separated.
[0720] In some embodiments, the indication information includes one or more of the following:
[0721] The first indication information is used to indicate whether the terminal is listening to the Physical Downlink Control Channel (PDCCH).
[0722] The second instruction information is used to indicate whether the terminal has entered sleep mode;
[0723] The third instruction information is used to instruct the terminal to skip PDCCH monitoring within a preset time period;
[0724] The fourth instruction is used to instruct the terminal to switch search spaces to monitor the PDCCH;
[0725] The fifth instruction information is used to indicate whether the secondary cell has switched to the dormant bandwidth portion (BWP).
[0726] The sixth indication information is used to indicate whether the first timer is started;
[0727] The seventh instruction is used to indicate whether the terminal has enabled PDCCH listening;
[0728] The eighth instruction is used to indicate whether the terminal should switch the PDCCH listening cycle.
[0729] In some embodiments, the indication information is determined based on the terminal's state or the state of discontinuous DRX reception;
[0730] The terminal's state includes a first state and a second state;
[0731] The first state includes one or more of the following:
[0732] During DRX off period;
[0733] Do not listen to PDCCH in the predefined search space;
[0734] Do not listen to PDCCH on predefined PDCCH listening opportunities;
[0735] Do not receive synchronization signal block (SSB);
[0736] No Radio Resource Management (RRM) measurements were performed.
[0737] Do not send uplink signals;
[0738] The second state includes one or more of the following:
[0739] During DRX on;
[0740] Listen to PDCCH;
[0741] Listen to the PDCCH at a predefined period;
[0742] Receive SSB;
[0743] Perform RRM measurement;
[0744] Send an uplink signal.
[0745] In some embodiments, when the terminal is in the first state, the indication information includes seventh indication information and / or fifth indication information;
[0746] When the terminal is in the second state, the indication information includes at least one of the second indication information, the fifth indication information, and the eighth indication information;
[0747] When the terminal is configured with DRX and the DRX status is in the DRX inactive period, the indication information includes at least one of the first indication information, the fifth indication information, and the sixth indication information;
[0748] When the terminal is configured with DRX and the DRX status is DRX active, the indication information includes at least one of the second indication information, the third indication information, the fourth indication information, and the fifth indication information.
[0749] In some embodiments, the behavior of the terminal includes one or more of the following:
[0750] Do not listen to PDCCH;
[0751] Switch the PDCCH listening cycle;
[0752] SSB is not accepted;
[0753] RRM measurement is not performed.
[0754] In some embodiments, the first signal includes a function indication field, which carries the indication information.
[0755] In some embodiments, the processor 1510 is further configured to:
[0756] Configure target configuration parameters for at least one terminal;
[0757] Generate a first signal based on the target configuration parameters;
[0758] Sending the first signal to the terminal includes:
[0759] The first signal is sent to the terminal according to the target period.
[0760] In some embodiments, the target configuration parameter includes one or more of the following:
[0761] The length of the functional indication field of the first signal;
[0762] The effective payload size of the first signal;
[0763] The indication method of the first signal includes a bitmap indication or a codepoint indication;
[0764] The signal structure of the first signal includes serial cascade or multi-stage cascade;
[0765] The encoding method of the first signal includes one of Manchester encoding, pulse width encoding, biphase-spaced code encoding, and Miller encoding.
[0766] The time-frequency resource mapping method of the first signal includes carrying 1 bit of information in one orthogonal frequency division multiplexing symbol, where 1 indicates that all resource elements are mapped to 1 and 0 indicates that all resource elements are mapped to 0; or, carrying M bits of information in one orthogonal frequency division multiplexing symbol, corresponding to M on / off keying symbols, where M is 1, 2 or 4.
[0767] The target listening position parameters are determined by the signal structure of the first signal.
[0768] In some embodiments, the target period is equal to the DRX period 1 / N, where N is a positive integer; or,
[0769] The target period is equal to the PDCCH listening opportunity period * Y, where Y is a positive integer; or...
[0770] The target period is a specific period.
[0771] In some embodiments, the processor 1510 is further configured to:
[0772] When the indication method of the first signal is configured as bitmap indication and the signal structure of the first signal is configured as serial concatenation, the total length of all categories of function indication fields corresponding to each terminal and the length of the first function indication field corresponding to each terminal are determined according to the length of the function indication field of the first signal or the effective payload size of the first signal.
[0773] Based on the total length of all category function indication fields corresponding to each terminal, the length of the first function indication field corresponding to each terminal, and the serial concatenation, the target monitoring position parameter is determined, and the target monitoring parameter is used as one of the target configuration parameters.
[0774] In some embodiments, the processor 1510 is further configured to:
[0775] When the indication method of the first signal is configured as bitmap indication and the signal structure of the first signal is configured as multi-level cascade, the total length of each category of function indication field and the length of each category of function indication field corresponding to each terminal are determined according to the length of the function indication field of the first signal or the effective payload size of the first signal.
[0776] Based on the total length of each category function indication field, the length of each category function indication field corresponding to each terminal, and the multi-level cascading, the target monitoring location parameter is determined, and the target monitoring parameter is used as one of the target configuration parameters.
[0777] It should be noted that the apparatus provided in this application embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.
[0778] like Figure 16 As shown, this application also provides a PDCCH monitoring indication device, including:
[0779] A transmitting unit is configured to transmit a first signal to a terminal, wherein the first signal carries indication information, the first signal is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform, and the indication information is used to determine the behavior of the terminal.
[0780] Optionally, the indication information includes one or more of the following:
[0781] The first indication information is used to indicate whether the terminal is listening to the Physical Downlink Control Channel (PDCCH).
[0782] The second instruction information is used to indicate whether the terminal has entered sleep mode;
[0783] The third instruction information is used to instruct the terminal to skip PDCCH monitoring within a preset time period;
[0784] The fourth instruction is used to instruct the terminal to switch search spaces to monitor the PDCCH;
[0785] The fifth instruction information is used to indicate whether the secondary cell has switched to the dormant bandwidth portion (BWP).
[0786] The sixth indication information is used to indicate whether the first timer is started;
[0787] The seventh instruction is used to indicate whether the terminal has enabled PDCCH listening;
[0788] The eighth instruction is used to indicate whether the terminal should switch the PDCCH listening cycle.
[0789] Optionally, the indication information is determined based on the terminal's status or the discontinuous DRX reception status;
[0790] The terminal's state includes a first state and a second state;
[0791] The first state includes one or more of the following:
[0792] During DRX off period;
[0793] Do not listen to PDCCH in the predefined search space;
[0794] Do not listen to PDCCH on predefined PDCCH listening opportunities;
[0795] Do not receive synchronization signal block (SSB);
[0796] No Radio Resource Management (RRM) measurements were performed.
[0797] Do not send uplink signals;
[0798] The second state includes one or more of the following:
[0799] During DRX on;
[0800] Listen to PDCCH;
[0801] Listen to the PDCCH at a predefined period;
[0802] Receive SSB;
[0803] Perform RRM measurement;
[0804] Send an uplink signal.
[0805] Optionally, when the terminal is in the first state, the indication information includes seventh indication information and / or fifth indication information;
[0806] When the terminal is in the second state, the indication information includes at least one of the second indication information, the fifth indication information, and the eighth indication information;
[0807] When the terminal is configured with DRX and the DRX status is in the DRX inactive period, the indication information includes at least one of the first indication information, the fifth indication information, and the sixth indication information;
[0808] When the terminal is configured with DRX and the DRX status is DRX active, the indication information includes at least one of the second indication information, the third indication information, the fourth indication information, and the fifth indication information.
[0809] Optionally, the behavior of the terminal includes one or more of the following:
[0810] Do not listen to PDCCH;
[0811] Switch the PDCCH listening cycle;
[0812] SSB is not accepted;
[0813] RRM measurement is not performed.
[0814] Optionally, the first signal includes a function indication field, which is used to carry the indication information.
[0815] Optionally, the apparatus in this application embodiment further includes:
[0816] The fifth processing unit is used to configure target configuration parameters for at least one terminal;
[0817] The sixth processing unit is used to generate a first signal based on the target configuration parameters;
[0818] The transmitting unit is specifically used for:
[0819] The first signal is sent to the terminal according to the target period.
[0820] Optionally, the target configuration parameters include one or more of the following:
[0821] The length of the functional indication field of the first signal;
[0822] The effective payload size of the first signal;
[0823] The indication method of the first signal includes a bitmap indication or a codepoint indication;
[0824] The signal structure of the first signal includes serial cascade or multi-stage cascade;
[0825] The encoding method of the first signal includes one of Manchester encoding, pulse width encoding, biphase-spaced code encoding, and Miller encoding.
[0826] The time-frequency resource mapping method of the first signal includes carrying 1 bit of information in one orthogonal frequency division multiplexing symbol, where 1 indicates that all resource elements are mapped to 1 and 0 indicates that all resource elements are mapped to 0; or, carrying M bits of information in one orthogonal frequency division multiplexing symbol, corresponding to M on / off keying symbols, where M is 1, 2 or 4.
[0827] The target listening position parameters are determined by the signal structure of the first signal.
[0828] Optionally, the target period is equal to the DRX period 1 / N, where N is a positive integer; or,
[0829] The target period is equal to the PDCCH listening opportunity period * Y, where Y is a positive integer; or...
[0830] The target period is a specific period.
[0831] Optionally, the fifth processing unit is specifically used for:
[0832] When the indication method of the first signal is configured as bitmap indication and the signal structure of the first signal is configured as serial concatenation, the total length of all categories of function indication fields corresponding to each terminal and the length of the first function indication field corresponding to each terminal are determined according to the length of the function indication field of the first signal or the effective payload size of the first signal.
[0833] Based on the total length of all category function indication fields corresponding to each terminal, the length of the first function indication field corresponding to each terminal, and the serial concatenation, the target monitoring position parameter is determined, and the target monitoring parameter is used as one of the target configuration parameters.
[0834] Optionally, the fifth processing unit is specifically used for:
[0835] When the indication method of the first signal is configured as bitmap indication and the signal structure of the first signal is configured as multi-level cascade, the total length of each category of function indication field and the length of each category of function indication field corresponding to each terminal are determined according to the length of the function indication field of the first signal or the effective payload size of the first signal.
[0836] Based on the total length of each category function indication field, the length of each category function indication field corresponding to each terminal, and the multi-level cascading, the target monitoring location parameter is determined, and the target monitoring parameter is used as one of the target configuration parameters.
[0837] It should be noted that the division of units in the embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.
[0838] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
[0839] It should be noted that the apparatus provided in this application embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.
[0840] In some embodiments of this application, a non-transient readable storage medium is also provided, which stores a program for executing the PDCCH monitoring indication method described above.
[0841] The non-transiently readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to magnetic memory (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO)), optical memory (e.g., compact disc (CD), digital video disc (DVD), Blu-ray disc (BD), high-definition versatile disc (HVD)), and semiconductor memory (e.g., ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND (Non-volatile Memory Device) FLASH), solid-state drives (SSD), etc.).
[0842] When executed by the processor, this program can achieve the above-mentioned applications, such as... Figure 4 The terminal-side method shown or as... Figure 6 To avoid repetition, all implementation methods shown in the base station-side embodiments will not be described again here.
[0843] This application also provides a computer program product, including computer instructions, which, when executed by a processor, implement the above-described... Figure 4 or Figure 6 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.
[0844] The technical solutions provided in this application can be applied to a variety of systems. For example, applicable systems may include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), 5G New Radio (NR) and its evolutionary communication systems, and 6G (sixth generation mobile communication technology) systems. All of these systems include terminal equipment and network equipment. The system may also include a core network component, such as the Evolved Packet System (EPS) or the 5G system (5GS).
[0845] The terminal devices involved in the embodiments of this application can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in 5G or 6G systems, the terminal device may be called User Equipment (UE). Wireless terminal devices can be USB storage devices, other personal computer memory devices, and dongles. They can also communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices. For example, they can be portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the radio access network. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), personal computers, tablets, and Machine-type Communication (MTC) terminal devices. Wireless terminal devices can also be referred to as systems, subscriber units, subscriber stations, mobile stations, mobile devices, remote stations, access points, remote terminals, access terminals, user terminals, user agents, user devices, and wireless access devices and routers / modems that meet the limitations of this definition; however, this application does not limit the scope of the embodiments.
[0846] The network device involved in this application embodiment can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, a base station may also be called an access point, or a device in the access network that communicates with wireless terminal devices through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment involved in the embodiments of this application can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a NodeB in a Wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, network testing equipment, etc., and is not limited in the embodiments of this application. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may also be geographically separated.
[0847] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multiple-user MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and can also be diversity transmission, precoding transmission, or beamforming transmission, etc.
[0848] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.
[0849] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.
[0850] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.
[0851] These processors can execute instructions that can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable device for implementing the process. Figure 1One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.
[0852] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.
Claims
1. A PDCCH monitoring and indication method, applied to a terminal, characterized in that, include: The receiver receives a first signal sent by the base station, wherein the first signal carries indication information and is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform; The behavior of the terminal is determined based on the indicated information; or, the behavior of the terminal is determined based on the state of the terminal and the indicated information.
2. The method according to claim 1, characterized in that, The indication information includes one or more of the following: The first indication information is used to indicate whether the terminal is listening to the Physical Downlink Control Channel (PDCCH). The second instruction information is used to indicate whether the terminal has entered sleep mode; The third instruction information is used to instruct the terminal to skip PDCCH monitoring within a preset time period; The fourth instruction is used to instruct the terminal to switch search spaces to monitor the PDCCH; The fifth instruction information is used to indicate whether the secondary cell has switched to the dormant bandwidth portion (BWP). The sixth indication information is used to indicate whether the first timer is started; The seventh instruction is used to indicate whether the terminal has enabled PDCCH listening; The eighth instruction is used to indicate whether the terminal should switch the PDCCH listening cycle.
3. The method according to claim 2, characterized in that, The state of the terminal includes a first state or a second state; The first state includes one or more of the following: During DRX inactivity; Do not listen to PDCCH in the predefined search space; Do not listen to PDCCH on predefined PDCCH listening opportunities; Do not receive synchronization signal block (SSB); No Radio Resource Management (RRM) measurements were performed. Do not send uplink signals; The second state includes one or more of the following: During DRX activation; Listen to PDCCH; Listen to the PDCCH at a predefined period; Receive SSB; Perform RRM measurement; Send uplink information.
4. The method according to claim 3, characterized in that, The indication information is determined based on the state of the terminal or the discontinuous DRX reception state.
5. The method according to claim 4, characterized in that, When the terminal is in the first state, the indication information includes fifth indication information and / or seventh indication information; When the terminal is in the second state, the indication information includes at least one of the second indication information, the fifth indication information, and the eighth indication information; When the terminal is configured with DRX and the DRX status is in the DRX inactive period, the indication information includes at least one of the first indication information, the fifth indication information, and the sixth indication information; When the terminal is configured with DRX and the DRX status is DRX active, the indication information includes at least one of the second indication information, the third indication information, the fourth indication information, and the fifth indication information.
6. The method according to claim 1, characterized in that, The behavior of the terminal includes one or more of the following: Do not listen to PDCCH; Switch the PDCCH listening cycle; SSB is not accepted; RRM measurement is not performed.
7. The method according to claim 1, characterized in that, The first signal includes a function indication field, which is used to carry the indication information.
8. The method according to claim 1, characterized in that, The first signal transmitted by the receiving base station includes: According to the target period, receive the first signal sent by the base station.
9. The method according to claim 8, characterized in that, The target period is obtained through at least one of broadcast signals, predefined methods, higher-layer configurations, and downlink control information. The target period is equal to 1 / N of the DRX period, where N is a positive integer; or, The target period is equal to the PDCCH listening opportunity period * Y, where Y is a positive integer; or... The target period is a specific period.
10. The method according to claim 1, characterized in that, The method further includes: The indication information is obtained by demodulating the first signal according to the target configuration parameters; wherein the target configuration parameters include one or more of the following: The length of the functional indication field of the first signal; The effective payload size of the first signal; The indication method of the first signal includes a bitmap indication or a codepoint indication; The signal structure of the first signal includes serial cascade or multi-stage cascade; The encoding method of the first signal includes one of Manchester encoding, pulse width encoding, biphase-spaced code encoding, and Miller encoding. The time-frequency resource mapping method of the first signal includes carrying 1 bit of information in one orthogonal frequency division multiplexing symbol, where 1 indicates that all resource elements are mapped to 1 and 0 indicates that all resource elements are mapped to 0; or, carrying M bits of information in one orthogonal frequency division multiplexing symbol, corresponding to M on / off keying symbols, where M is 1, 2 or 4. The target listening position parameters are determined by the signal structure of the first signal.
11. The method according to claim 10, characterized in that, The step of demodulating the first signal according to the target configuration parameters to obtain the indication information includes: The length of each functional indication field of the terminal is determined based on the length of the functional indication field of the first signal or the effective payload size of the first signal. Based on the target listening location parameters, determine the listening location parameters of the terminal; Based on the listening location parameters of the terminal and the length of each function indication field of the terminal, the indication information carried by each function indication field of the terminal is demodulated from the first signal.
12. The method according to claim 1, characterized in that, The method further includes: After determining the terminal's behavior according to the indicated information, the terminal's behavior is executed after a first effective duration; wherein, the first effective duration is determined according to the terminal's third state, the third state including stopping PDCCH listening or starting PDCCH listening.
13. The method according to claim 1, characterized in that, Determining the terminal's behavior based on the terminal's state and the indication information includes: After determining the terminal's behavior based on the terminal's state and the indicated information, the terminal's behavior is executed after a second effective duration; wherein the second effective duration is determined by one or more of the following: Different energy-saving states of the terminal; Terminal synchronization resource information; Demodulation processing time of the first signal; Does the first signal carry the auxiliary cell into hibernation? 14. The method according to claim 2, characterized in that, The method further includes: When the instruction information includes third instruction information and fourth instruction information, the actions of the terminal corresponding to the third instruction information and the actions of the terminal corresponding to the fourth instruction information are executed according to the pre-configured or agreed execution rules.
15. A PDCCH monitoring indication method, applied to a base station, characterized in that, include: A first signal is sent to the terminal, wherein the first signal carries indication information, the first signal is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform, and the indication information is used to determine the behavior of the terminal.
16. The method according to claim 15, characterized in that, The indication information includes one or more of the following: The first indication information is used to indicate whether the terminal is listening to the Physical Downlink Control Channel (PDCCH). The second instruction information is used to indicate whether the terminal has entered sleep mode; The third instruction information is used to instruct the terminal to skip PDCCH monitoring within a preset time period; The fourth instruction is used to instruct the terminal to switch search spaces to monitor the PDCCH; The fifth instruction information is used to indicate whether the secondary cell has switched to the dormant bandwidth portion (BWP). The sixth indication information is used to indicate whether the first timer is started; The seventh instruction is used to indicate whether the terminal has enabled PDCCH listening; The eighth instruction is used to indicate whether the terminal should switch the PDCCH listening cycle.
17. The method according to claim 16, characterized in that, The indication information is determined based on the terminal's status or the discontinuous DRX reception status; The terminal's state includes a first state and a second state; The first state includes one or more of the following: During DRX off period; Do not listen to PDCCH in the predefined search space; Do not listen to PDCCH on predefined PDCCH listening opportunities; Do not receive synchronization signal block (SSB); No Radio Resource Management (RRM) measurements were performed. Do not send uplink signals; The second state includes one or more of the following: During DRX on; Listen to PDCCH; Listen to the PDCCH at a predefined period; Receive SSB; Perform RRM measurement; Send uplink information.
18. The method according to claim 17, characterized in that, When the terminal is in the first state, the indication information includes the seventh indication information and / or the fifth indication information; When the terminal is in the second state, the indication information includes at least one of the second indication information, the fifth indication information, and the eighth indication information; When the terminal is configured with DRX and the DRX status is in the DRX inactive period, the indication information includes at least one of the first indication information, the fifth indication information, and the sixth indication information; When the terminal is configured with DRX and the DRX status is DRX active, the indication information includes at least one of the second indication information, the third indication information, the fourth indication information, and the fifth indication information.
19. The method according to claim 15, characterized in that, The behavior of the terminal includes one or more of the following: Do not listen to PDCCH; Switch the PDCCH listening cycle; SSB is not accepted; RRM measurement is not performed.
20. The method according to claim 15, characterized in that, The first signal includes a function indication field, which is used to carry the indication information.
21. The method according to claim 15, characterized in that, The method further includes: Configure target configuration parameters for at least one terminal; Generate a first signal based on the target configuration parameters; Sending the first signal to the terminal includes: The first signal is sent to the terminal according to the target period.
22. The method according to claim 21, characterized in that, The target configuration parameters include one or more of the following: The length of the functional indication field of the first signal; The effective payload size of the first signal; The indication method of the first signal includes a bitmap indication or a codepoint indication; The signal structure of the first signal includes serial cascade or multi-stage cascade; The encoding method of the first signal includes one of Manchester encoding, pulse width encoding, biphase-spaced code encoding, and Miller encoding. The time-frequency resource mapping method of the first signal includes carrying 1 bit of information in one orthogonal frequency division multiplexing symbol, where 1 indicates that all resource elements are mapped to 1 and 0 indicates that all resource elements are mapped to 0; or, carrying M bits of information in one orthogonal frequency division multiplexing symbol, corresponding to M on / off keying symbols, where M is 1, 2 or 4. The target listening position parameters are determined by the signal structure of the first signal.
23. The method according to claim 21, characterized in that, The target period is equal to 1 / N of the DRX period, where N is a positive integer; or... The target period is equal to the PDCCH listening opportunity period * Y, where Y is a positive integer; or... The target period is a specific period.
24. The method according to claim 21, characterized in that, The step of configuring target configuration parameters for at least one terminal includes: When the indication method of the first signal is configured as bitmap indication and the signal structure of the first signal is configured as serial concatenation, the total length of all categories of function indication fields corresponding to each terminal and the length of the first function indication field corresponding to each terminal are determined according to the length of the function indication field of the first signal or the effective payload size of the first signal. Based on the total length of all category function indication fields corresponding to each terminal, the length of the first function indication field corresponding to each terminal, and the serial concatenation, the target monitoring position parameter is determined, and the target monitoring parameter is used as one of the target configuration parameters.
25. The method according to claim 21, characterized in that, The step of configuring target configuration parameters for at least one terminal includes: When the indication method of the first signal is configured as bitmap indication and the signal structure of the first signal is configured as multi-level cascade, the total length of each category of function indication field and the length of each category of function indication field corresponding to each terminal are determined according to the length of the function indication field of the first signal or the effective payload size of the first signal. Based on the total length of each category function indication field, the length of each category function indication field corresponding to each terminal, and the multi-level cascading, the target monitoring location parameter is determined, and the target monitoring parameter is used as one of the target configuration parameters.
26. A terminal, characterized in that, include: A transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor is configured to read the program from the memory and perform the following processes: The transceiver receives a first signal sent by the base station, wherein the first signal carries indication information and is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform. The behavior of the terminal is determined based on the indicated information; or, the behavior of the terminal is determined based on the state of the terminal and the indicated information.
27. A PDCCH monitoring and indication device, characterized in that, include: The receiving unit is configured to receive a first signal transmitted by the base station, wherein the first signal carries indication information and is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform; The first processing unit is configured to determine the behavior of the terminal based on the instruction information; or, based on the state of the terminal and the instruction information, determine the behavior of the terminal.
28. A base station, characterized in that, include: A transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor is configured to read the program from the memory and perform the following processes: The transceiver sends a first signal to the terminal, wherein the first signal carries indication information, and the first signal is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform, and the indication information is used to determine the behavior of the terminal.
29. A PDCCH monitoring and indication device, characterized in that, include: A transmitting unit is configured to transmit a first signal to a terminal, wherein the first signal carries indication information, the first signal is generated based on an on / off keying waveform and / or an orthogonal frequency division multiplexing waveform, and the indication information is used to determine the behavior of the terminal.
30. A non-transiently readable storage medium, characterized in that, The non-transiently readable storage medium stores a program for performing the steps of the PDCCH monitoring indication method according to any one of claims 1 to 14, or for performing the steps of the PDCCH monitoring indication method according to any one of claims 15 to 25.