Search Space Parameter Configuration and Adjustment Method and Device

Abstract

The present invention relates to a method and apparatus for configuring and adjusting search space parameters. The method includes: determining whether a current state meets a preset condition; if the current state meets the preset condition, obtaining a search space configuration parameter corresponding to the current state from multiple sets of pre-stored search space configuration parameters; switching the search space configuration parameter of the currently monitored search space to the search space configuration parameter corresponding to the current state; and continuing to monitor the search space by using the search space configuration parameter corresponding to the current state. In this technical solution, the search space configuration parameter to be switched is obtained according to the current state and switched, avoiding the delay caused by adjusting the search space configuration parameter through the high-layer signaling sent by the base station, realizing the solution for the terminal to adjust the search space configuration parameter at the best time, improving the efficiency of the terminal to adjust the search space configuration parameter, and reducing the power consumption of the terminal.

Description

[0001] This application is a divisional application. The application number of the original application is: 201880001970.X, the application date is October 11, 2018, and the invention title is "Search Space Parameter Configuration and Adjustment Method and Device". Technical Field

[0002] The present invention relates to the field of communication technologies, and in particular, to a search space parameter configuration and adjustment method and device. Background Art

[0003] With the development of communication technologies, the types of services that mobile communication can support are also increasing, such as multimedia services, cloud services, and interactive services. To support these types of services, the power consumption of terminals is also increasing.

[0004] Through power consumption analysis of terminals, it can be known that the reception and processing of the PDCCH (Physical Downlink Control Channel) are operations that consume a relatively large amount of power in terminals. In related technologies, to reduce the power consumption of terminals, the base station can adjust the search space configuration parameters when the terminal monitors the PDCCH according to the terminal's services. When the terminal's services are relatively sparse, a larger search period is used to search for the PDCCH; or when the terminal load is small, a smaller CCE (Control Channel Element) aggregation degree is configured, etc. However, the base station usually uses high-layer signaling to configure new search space configuration parameters for the terminal, and the processing flow of the terminal for high-layer signaling is relatively long. Therefore, it takes a relatively long time from the base station sending high-layer signaling to the terminal responding to the high-layer signaling to adjust the search space configuration parameters. It is possible that when the terminal finally adjusts the search space configuration parameters, the state of its services has changed, resulting in the terminal missing the best adjustment opportunity, and further resulting in the terminal being unable to effectively reduce its power consumption. Summary of the Invention

[0005] Embodiments of the present invention provide a search space parameter configuration and adjustment method and device. The technical solutions are as follows:

[0006] According to a first aspect of the embodiments of the present invention, a search space parameter configuration and adjustment method is provided, which is applied to a terminal and includes:

[0007] Determine whether the current state meets a preset condition;

[0008] If the current state meets the preset condition, obtain the search space configuration parameter corresponding to the current state from multiple sets of pre-stored search space configuration parameters. Each set of the search space configuration parameters includes at least one of a search period, the number of time units for continuous search in each search period, the monitoring opportunity in the time unit, the control channel element (CCE) aggregation level in each monitoring opportunity, the potential transmission position of the physical downlink control channel (PDCCH) at each CCE aggregation level, and the downlink control information format.

[0009] Switch the search space configuration parameter of the current monitored search space to the search space configuration parameter corresponding to the current state.

[0010] Continue to monitor the search space with the search space configuration parameter corresponding to the current state to obtain the downlink control information (DCI) sent by the base station through the PDCCH.

[0011] The technical solution provided by the embodiments of the present invention may include the following beneficial effects:

[0012] In the above technical solution, when the terminal determines that the current state meets the preset condition, it can obtain the search space configuration parameter to be switched according to the current state and perform the switch, avoiding the delay caused by adjusting the search space configuration parameter through the high-layer signaling sent by the base station, realizing the solution for the terminal to adjust the search space configuration parameter at the best time, improving the efficiency of the terminal to adjust the search space configuration parameter, and reducing the power consumption of the terminal.

[0013] In one embodiment, the determining whether the current state meets the preset condition includes:

[0014] Determine whether a handover instruction sent by the base station is currently received. The handover instruction includes the parameter identifier of the search space configuration parameter indicated by the base station for the terminal to switch.

[0015] If it is determined that the handover instruction has been received, confirm that the current state has met the preset condition.

[0016] In one embodiment, the obtaining the search space configuration parameter corresponding to the current state from multiple sets of pre-stored search space configuration parameters includes:

[0017] Obtain the search space configuration parameter corresponding to the parameter identifier included in the handover instruction from multiple sets of pre-stored search space configuration parameters as the search space configuration parameter corresponding to the current state.

[0018] In one embodiment, the determining whether a handover instruction sent by the base station is currently received includes:

[0019] Obtain the information of the target field of the preset DCI sent by the base station through the PDCCH;

[0020] Determine whether there is a parameter identifier that matches the information of the target field of the preset DCI among the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters;

[0021] If there is a parameter identifier that matches the information of the target field of the preset DCI among the multiple parameter identifiers, confirm that the handover instruction sent by the base station is received.

[0022] In one embodiment, the determining whether a handover instruction sent by a base station is currently received includes:

[0023] Obtain the information transmitted by the target control channel in real time;

[0024] Determine whether there is a parameter identifier that matches the information transmitted by the target control channel among the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters;

[0025] If there is a parameter identifier that matches the information transmitted by the target control channel among the multiple parameter identifiers, confirm that the handover instruction sent by the base station is received.

[0026] In one embodiment, the determining whether a handover instruction sent by a base station is currently received includes:

[0027] Obtain the information of the target field of the preset medium access control (MAC) layer message in real time;

[0028] Determine whether there is a parameter identifier that matches the information of the target field of the preset MAC layer message among the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters;

[0029] If there is a parameter identifier that matches the information of the target field of the preset MAC layer message among the multiple parameter identifiers, confirm that the handover instruction sent by the base station is received.

[0030] In one embodiment, the determining whether the current state meets a preset condition includes:

[0031] Obtain the current working state, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation;

[0032] Determine whether the current working state meets the first preset state;

[0033] If the current working state meets the first preset state, confirm that the current state has met the preset condition.

[0034] In one embodiment, obtaining the search space configuration parameter corresponding to the current state from multiple pre-stored sets of search space configuration parameters includes:

[0035] Obtaining the search space configuration parameter corresponding to the current working state according to a preset correspondence between the state and the search space configuration parameter, where the correspondence between the state and the search space configuration parameter describes that multiple different working states respectively correspond to multiple sets of search space configuration parameters.

[0036] In one embodiment, the method further includes:

[0037] Receiving a shutdown instruction sent by a base station, where the shutdown instruction instructs to shut down the search space;

[0038] Stopping monitoring the search space according to the shutdown instruction.

[0039] In one embodiment, the method further includes:

[0040] Receiving parameter configuration information sent by a base station, where the parameter configuration information includes multiple sets of search space configuration parameters;

[0041] Storing the multiple sets of search space configuration parameters included in the parameter configuration information.

[0042] In one embodiment, the method further includes:

[0043] Receiving an initial monitoring instruction sent by a base station, where the initial monitoring instruction includes a parameter identifier of the search space configuration parameter required by the base station to instruct the terminal to initially monitor the search space;

[0044] Obtaining an initial search space configuration parameter from the multiple sets of search space configuration parameters according to the parameter identifier included in the initial monitoring instruction;

[0045] Monitoring the search space using the initial search space configuration parameter.

[0046] According to the second aspect of the embodiments of the present invention, a search space parameter configuration and adjustment method applied to a base station is provided, including:

[0047] Obtaining multiple sets of search space configuration parameters respectively corresponding to multiple different states of a terminal, where each set of search space configuration parameters includes at least one of a search period, the number of time units for continuous search in each search period, the monitoring opportunity in the time unit, the control channel element CCE aggregation degree in each monitoring opportunity, the potential transmission position of the physical downlink control channel PDCCH under each control channel element CCE aggregation degree, and the downlink control information format.

[0048] Send parameter configuration information to the terminal, where the parameter configuration information includes the multiple sets of search space configuration parameters, so that the terminal can select the search space configuration parameter corresponding to its current state from the multiple sets of search space configuration parameters for switching.

[0049] The technical solution provided by the embodiment of the present invention may include the following beneficial effects:

[0050] In the above technical solution, the base station can configure multiple sets of search space configuration parameters for the terminal during initialization, so that when the terminal determines that its current state meets the preset conditions, it can obtain the search space configuration parameters that need to be switched according to the current state and perform the switching, avoiding the delay caused by adjusting the search space configuration parameters through the high-layer signaling sent by the base station, realizing the solution for the terminal to adjust the search space configuration parameters at the best time, improving the efficiency of the terminal to adjust the search space configuration parameters, and reducing the power consumption of the terminal.

[0051] In one embodiment, the obtaining of the multiple sets of search space configuration parameters includes:

[0052] Obtain the initial state of the terminal, where the initial state includes at least one of the amount of data to be transmitted by the terminal, the type of service to be processed, or the channel quality of the terminal;

[0053] According to the initial state of the terminal, obtain the multiple sets of search space configuration parameters.

[0054] In one embodiment, the method further includes:

[0055] According to the initial state of the terminal, obtain the initial search space configuration parameters required for the terminal to monitor the search space from the multiple sets of search space configuration parameters;

[0056] According to the initial search space configuration parameters, send an initial monitoring instruction to the terminal, where the initial monitoring instruction includes the parameter identifier of the initial search space configuration parameters.

[0057] In one embodiment, the method further includes:

[0058] Obtain the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal;

[0059] Determine whether the current working state of the terminal meets the first preset state;

[0060] If the current working state of the terminal meets the first preset state, obtain the search space configuration parameter corresponding to the current working state of the terminal from the multiple sets of search space configuration parameters;

[0061] Switch the search space configuration parameters of the current configuration search space to the search space configuration parameters corresponding to the current working state of the terminal.

[0062] In one embodiment, the method further includes:

[0063] Obtain the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal;

[0064] Determine whether the current working state of the terminal meets a second preset state;

[0065] If the current working state of the terminal meets the second preset state, determine the search space configuration parameters corresponding to the current working state of the terminal from the multiple sets of search space configuration parameters;

[0066] Send a switching instruction to the terminal according to the search space configuration parameters corresponding to the working state, where the switching instruction includes a parameter identifier of the search space configuration parameters corresponding to the current working state of the terminal.

[0067] In one embodiment, the sending a switching instruction to the terminal according to the search space configuration parameters corresponding to the working state includes:

[0068] Obtain the parameter identifier of the search space configuration parameters corresponding to the working state;

[0069] Write the parameter identifier into a target field of a preset DCI;

[0070] Send the preset DCI to the terminal through the PDCCH.

[0071] In one embodiment, the sending a switching instruction to the terminal according to the search space configuration parameters corresponding to the working state includes:

[0072] Obtain the parameter identifier of the search space configuration parameters corresponding to the working state;

[0073] Send the parameter identifier to the terminal through a target control channel.

[0074] In one embodiment, the sending a switching instruction to the terminal according to the search space configuration parameters corresponding to the working state includes:

[0075] Obtain the parameter identifier of the search space configuration parameters corresponding to the working state;

[0076] Write the parameter identifier into a target field of a preset medium access control (MAC) layer message.

[0077] Send the preset MAC layer message to the terminal.

[0078] In one embodiment, the method further includes:

[0079] Obtain the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal;

[0080] Determine whether to close the search space according to the current working state of the terminal;

[0081] If it is determined to close the search space, send a close instruction to the terminal so that the terminal stops monitoring the search space according to the close instruction.

[0082] According to the third aspect of the embodiments of the present invention, there is provided a search space parameter configuration and adjustment device, including:

[0083] A first determination module, configured to determine whether the current state meets a preset condition;

[0084] A first acquisition module, configured to, if the current state meets the preset condition, obtain the search space configuration parameter corresponding to the current state from multiple sets of pre-stored search space configuration parameters, and each set of the search space configuration parameters includes at least one of a search period, the number of time units continuously searched in each search period, the monitoring opportunity in the time unit, the control channel element CCE aggregation degree in each monitoring opportunity, the potential transmission position of the physical downlink control channel PDCCH under each CCE aggregation degree, and the downlink control information format;

[0085] A switching module, configured to switch the search space configuration parameter of the currently monitored search space to the search space configuration parameter corresponding to the current state;

[0086] A first monitoring module, configured to continue monitoring the search space by using the search space configuration parameter corresponding to the current state to obtain the downlink control information DCI sent by the base station through the PDCCH.

[0087] In one embodiment, the first determination module includes:

[0088] A first determination sub-module, configured to determine whether a switching instruction sent by the base station is currently received, where the switching instruction includes a parameter identifier of the search space configuration parameter indicated by the base station for the terminal to switch;

[0089] A first confirmation sub-module, configured to, if it is determined that the switching instruction has been received, confirm that the current state has met the preset condition.

[0090] In one embodiment, the first acquisition module includes:

[0091] A first acquisition sub-module, configured to acquire, from multiple sets of pre-stored search space configuration parameters, the search space configuration parameter corresponding to the parameter identifier included in the handover instruction as the search space configuration parameter corresponding to the current state.

[0092] In one embodiment, the first determination sub-module includes:

[0093] A first acquisition unit, configured to acquire information of a target field of a preset DCI sent by the base station through the PDCCH;

[0094] A first determination unit, configured to determine whether there is a parameter identifier in the multiple parameter identifiers respectively corresponding to the multiple sets of search space configuration parameters that matches the information of the target field of the preset DCI;

[0095] A first confirmation unit, configured to confirm receiving the handover instruction sent by the base station if there is a parameter identifier in the multiple parameter identifiers that matches the information of the target field of the preset DCI.

[0096] In one embodiment, the first determination sub-module includes:

[0097] A second acquisition unit, configured to acquire in real time the information transmitted by the target control channel;

[0098] A second determination unit, configured to determine whether there is a parameter identifier in the multiple parameter identifiers respectively corresponding to the multiple sets of search space configuration parameters that matches the information transmitted by the target control channel;

[0099] A second confirmation unit, configured to confirm receiving the handover instruction sent by the base station if there is a parameter identifier in the multiple parameter identifiers that matches the information transmitted by the target control channel.

[0100] In one embodiment, the first determination sub-module includes:

[0101] A third acquisition unit, configured to acquire in real time the information of a target field of a preset medium access control (MAC) layer message;

[0102] A third determination unit, configured to determine whether there is a parameter identifier in the multiple parameter identifiers respectively corresponding to the multiple sets of search space configuration parameters that matches the information of the target field of the preset MAC layer message;

[0103] A third confirmation unit, configured to confirm receiving the handover instruction sent by the base station if there is a parameter identifier in the multiple parameter identifiers that matches the information of the target field of the preset MAC layer message.

[0104] In one embodiment, the first determination module includes:

[0105] A second acquisition sub-module, configured to acquire the current working state, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation;

[0106] A second determination sub-module, configured to determine whether the current working state meets a first preset state;

[0107] A second confirmation sub-module, configured to confirm that the current state meets the preset condition if the current working state meets the first preset state.

[0108] In one embodiment, the first acquisition module includes:

[0109] A third acquisition sub-module, configured to acquire search space configuration parameters corresponding to the current working state according to a correspondence between a preset state and search space configuration parameters, where the correspondence between the state and the search space configuration parameters describes that multiple sets of search space configuration parameters respectively correspond to multiple different working states.

[0110] In one embodiment, the device further includes:

[0111] A first receiving module, configured to receive a shutdown instruction sent by a base station, where the shutdown instruction instructs to shut down the search space;

[0112] A stop module, configured to stop monitoring the search space according to the shutdown instruction.

[0113] In one embodiment, the device further includes:

[0114] A second receiving module, configured to receive parameter configuration information sent by a base station, where the parameter configuration information includes the multiple sets of search space configuration parameters;

[0115] A storage module, configured to store the multiple sets of search space configuration parameters included in the parameter configuration information.

[0116] In one embodiment, the device further includes:

[0117] A third receiving module, configured to receive an initial monitoring instruction sent by a base station, where the initial monitoring instruction includes a parameter identifier of the search space configuration parameters required for the base station to instruct the terminal to initially monitor the search space;

[0118] A second acquisition module, configured to acquire initial search space configuration parameters from the multiple sets of search space configuration parameters according to the parameter identifier included in the initial monitoring instruction;

[0119] A second monitoring module, configured to monitor the search space by using the initial search space configuration parameters.

[0120] According to a fourth aspect of the embodiments of the present invention, there is provided a search space parameter configuration and adjustment device, including:

[0121] A third obtaining module, configured to obtain multiple sets of search space configuration parameters respectively corresponding to multiple different states of a terminal, each set of the search space configuration parameters including at least one of a search period, a number of time units continuously searched in each search period, a monitoring opportunity in the time unit, a control channel element (CCE) aggregation level in each monitoring opportunity, a potential transmission position of a physical downlink control channel (PDCCH) at each CCE aggregation level, and a downlink control information format.

[0122] A first sending module, configured to send parameter configuration information to the terminal, the parameter configuration information including the multiple sets of search space configuration parameters, so that the terminal can select a search space configuration parameter corresponding to its current state from the multiple sets of search space configuration parameters for switching.

[0123] In an embodiment, the third obtaining module includes:

[0124] A fourth obtaining sub-module, configured to obtain an initial state of the terminal, the initial state including at least one of a data volume to be transmitted by the terminal, a service type to be processed, or a channel quality of the terminal.

[0125] A fifth obtaining sub-module, configured to obtain the multiple sets of search space configuration parameters according to the initial state of the terminal.

[0126] In an embodiment, the device further includes:

[0127] A fourth obtaining module, configured to obtain initial search space configuration parameters required for the terminal to monitor the search space from the multiple sets of search space configuration parameters according to the initial state of the terminal.

[0128] A second sending module, configured to send an initial monitoring instruction to the terminal according to the initial search space configuration parameters, the initial monitoring instruction including a parameter identifier of the initial search space configuration parameters.

[0129] In an embodiment, the device further includes:

[0130] A fifth obtaining module, configured to obtain a current working state of the terminal, the working state including at least one of a current service type, a service load, a channel quality, a transmission / scheduling mode, and a PDCCH detection situation of the terminal.

[0131] A second determination module, configured to determine whether the current working state of the terminal meets a first preset state;

[0132] A sixth acquisition module, configured to, if the current working state of the terminal meets the first preset state, acquire search space configuration parameters corresponding to the current working state of the terminal from the multiple sets of search space configuration parameters;

[0133] A first adjustment module, configured to switch the search space configuration parameters of the currently configured search space to the search space configuration parameters corresponding to the current working state of the terminal.

[0134] In one embodiment, the apparatus further includes:

[0135] A seventh acquisition module, configured to acquire the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal;

[0136] A third determination module, configured to determine whether the current working state of the terminal meets a second preset state;

[0137] An eighth acquisition module, configured to, if the current working state of the terminal meets the second preset state, determine search space configuration parameters corresponding to the current working state of the terminal from the multiple sets of search space configuration parameters;

[0138] A third sending module, configured to send a switching instruction to the terminal according to the search space configuration parameters corresponding to the working state, where the switching instruction includes a parameter identifier of the search space configuration parameters corresponding to the current working state of the terminal.

[0139] In one embodiment, the third sending module includes:

[0140] A sixth acquisition sub-module, configured to acquire a parameter identifier of the search space configuration parameters corresponding to the working state;

[0141] A first writing sub-module, configured to write the parameter identifier into a target field of a preset DCI;

[0142] A first sending sub-module, configured to send the preset DCI to the terminal through the PDCCH.

[0143] In one embodiment, the third sending module includes:

[0144] A seventh acquisition sub-module, configured to acquire a parameter identifier of the search space configuration parameters corresponding to the working state;

[0145] A second sending sub-module, configured to send the parameter identifier to the terminal through a target control channel.

[0146] In one embodiment, the third sending module includes:

[0147] An eighth obtaining sub-module, configured to obtain a parameter identifier of a search space configuration parameter corresponding to the working state;

[0148] A second writing sub-module, configured to write the parameter identifier into a target field of a preset media access control (MAC) layer message;

[0149] A third sending sub-module, configured to send the preset MAC layer message to the terminal.

[0150] In one embodiment, the apparatus further includes:

[0151] A ninth obtaining module, configured to obtain a current working state of the terminal, where the working state includes at least one of a current service type, service load, channel quality, transmission / scheduling manner, and physical downlink control channel (PDCCH) detection situation of the terminal;

[0152] A fourth determining module, configured to determine whether to close the search space according to the current working state of the terminal;

[0153] A fourth sending module, configured to, if it is determined to close the search space, send a closing instruction to the terminal, so that the terminal stops monitoring the search space according to the closing instruction.

[0154] According to a fifth aspect of an embodiment of the present invention, there is provided a search space parameter configuration and adjustment apparatus, including:

[0155] A first processor;

[0156] A first memory for storing executable instructions of the first processor;

[0157] Wherein, the first processor is configured to:

[0158] Determine whether a current state meets a preset condition;

[0159] If the current state meets the preset condition, obtain a search space configuration parameter corresponding to the current state from multiple sets of pre-stored search space configuration parameters, and each set of the search space configuration parameters includes at least one of a search period, a number of time units continuously searched in each search period, a monitoring opportunity in the time unit, a control channel element (CCE) aggregation degree in each monitoring opportunity, a potential transmission position of a physical downlink control channel (PDCCH) under each CCE aggregation degree, and a downlink control information format;

[0160] Switch the search space configuration parameters of the current monitoring search space to the search space configuration parameters corresponding to the current state;

[0161] Continue to monitor the search space by using the search space configuration parameters corresponding to the current state, so as to obtain the downlink control information DCI sent by the base station through the PDCCH.

[0162] According to a sixth aspect of an embodiment of the present invention, a search space parameter configuration and adjustment device is characterized by including:

[0163] A second processor;

[0164] A second memory for storing executable instructions of the second processor;

[0165] Wherein, the second processor is configured to:

[0166] Obtain multiple sets of search space configuration parameters corresponding to multiple different states of the terminal respectively, and each set of the search space configuration parameters includes at least one of a search period, the number of time units continuously searched in each search period, monitoring opportunities in the time units, the control channel element CCE aggregation degree in each monitoring opportunity, potential transmission positions of the physical downlink control channel PDCCH under each CCE aggregation degree, and a downlink control information format;

[0167] Send parameter configuration information to the terminal, where the parameter configuration information includes the multiple sets of search space configuration parameters, so that the terminal can select the search space configuration parameters corresponding to its current state from the multiple sets of search space configuration parameters for switching.

[0168] According to a seventh aspect of an embodiment of the present invention, a computer-readable storage medium is provided, on which computer instructions are stored, and is characterized in that when the instructions are executed by a processor, the steps of the method described in any embodiment of the first aspect are implemented.

[0169] According to an eighth aspect of an embodiment of the present invention, a computer-readable storage medium is provided, on which computer instructions are stored, and is characterized in that when the instructions are executed by a processor, the steps of the method described in any embodiment of the second aspect are implemented.

[0170] It should be understood that the above general description and subsequent detailed description are only exemplary and explanatory, and cannot limit the present invention. Description of the Drawings

[0171] The drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present invention, and are used together with the specification to explain the principles of the present invention.

[0172] Figure 1a It is a flowchart of a method for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0173] Figure 1b It is a flowchart of a method for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0174] Figure 1c It is a flowchart of a method for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0175] Figure 1d It is a flowchart of a method for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0176] Figure 1e It is a flowchart of a method for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0177] Figure 2a It is a flowchart of a method for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0178] Figure 2b It is a flowchart of a method for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0179] Figure 3 It is an interaction diagram of a method for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0180] Figure 4 It is an interaction diagram of a method for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0181] Figure 5a It is a schematic structural diagram of a device for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0182] Figure 5b It is a schematic structural diagram of a device for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0183] Figure 5c It is a schematic structural diagram of a device for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0184] Figure 5d It is a schematic structural diagram of a device for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0185] Figure 5e It is a schematic structural diagram of a device for configuring and adjusting search space parameters shown according to an exemplary embodiment.

[0186] Figure 5f It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0187] Figure 5g It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0188] Figure 5h It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0189] Figure 5i It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0190] Figure 5j It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0191] Figure 5k It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0192] Figure 6a It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0193] Figure 6b It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0194] Figure 6c It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0195] Figure 6d It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0196] Figure 6e It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0197] Figure 6f It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0198] Figure 6g It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0199] Figure 6hIt is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0200] Figure 6i It is a schematic structural diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0201] Figure 7 It is a block diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment.

[0202] Figure 8 It is a block diagram of a search space parameter configuration and adjustment device shown according to an exemplary embodiment. Detailed implementation manners

[0203] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0204] The technical solutions provided in the embodiments of the present disclosure relate to a terminal and a base station. The terminal is connected to the base station through a mobile communication network. Among them, the terminal can be a mobile phone, a tablet computer, a smart watch, and other devices with mobile communication functions. The embodiments of the present disclosure do not limit this. In the related art, the base station usually uses high-layer signaling to configure new search space configuration parameters for the terminal. Since the processing flow of the terminal for high-layer signaling is relatively long, it takes a relatively long time from the base station sending high-layer signaling to the terminal responding to the high-layer signaling to adjust the search space configuration parameters. It is possible that when the terminal finally adjusts the search space configuration parameters, the state of its service has changed, resulting in the terminal missing the best adjustment opportunity, and further resulting in the terminal being unable to effectively reduce the power consumption of the terminal. In the technical solutions provided in the embodiments of the present disclosure, the base station can configure multiple sets of search space configuration parameters for the terminal during initialization. When the terminal determines that the current state meets the preset conditions, it can obtain the search space configuration parameters that need to be switched from the multiple sets of search space configuration parameters according to the real-time state and perform the switching, avoiding the delay caused by adjusting the search space configuration parameters through the high-layer signaling sent by the base station, realizing the scheme of the terminal adjusting the search space configuration parameters at the best time, improving the efficiency of the terminal adjusting the search space configuration parameters, and reducing the power consumption of the terminal.

[0205] The embodiments of the present disclosure provide a search space parameter configuration and adjustment method. The execution entities implementing this method are a terminal and a base station. According to the different implementation entities of the method, the embodiments of the present disclosure arrange two sets of embodiments as follows:

[0206] Base station side

[0207] Figure 1a is a flowchart of a search space parameter configuration and adjustment method shown according to an exemplary embodiment. The search space parameter configuration and adjustment method is used for a base station, such as Figure 1a shown, and the method includes the following steps 101 to step 102:

[0208] In step 101, obtain multiple sets of search space configuration parameters corresponding to multiple different states of the terminal respectively.

[0209] Among them, each set of search space configuration parameters includes at least one of a search period, the number of time units continuously searched in each search period, monitoring occasions in the time unit, the CCE aggregation level in each monitoring occasion, the potential transmission position of the PDCCH at each CCE aggregation level, and the DCI format (downlink control information format).

[0210] Exemplarily, after the terminal accesses the base station, the base station can first configure a search space for the terminal, and this search space is the search space for the PDCCH, and then obtain multiple sets of search space configuration parameters configured for the terminal. Optionally, the base station side can set N sets of search space configuration parameters for different service scenarios, where N is an integer greater than or equal to 2. For example, among the N sets of search space configuration parameters set by the base station, there can be search space configuration parameters applicable to services with relatively intensive scheduling. Such search space configuration parameters include a relatively small search period, a relatively large number of time units for continuous search in each search period, and a relatively large number of monitoring opportunities in the time units; there can also be search space configuration parameters applicable to services with relatively sparse scheduling. Such search space configuration parameters include a relatively large search period, a relatively small number of time units for continuous search in each search period, and a relatively small number of monitoring opportunities in the time units; similarly, among the N sets of search space configuration parameters, there can be search space configuration parameters applicable to the case of relatively good channel quality. Such search space configuration parameters include a relatively small CCE aggregation degree in each monitoring opportunity; there can also be search space configuration parameters applicable to the case of relatively poor channel quality. Such search space configuration parameters include a relatively large CCE aggregation degree in each monitoring opportunity; among the N sets of search space configuration parameters, there can be search space configuration parameters applicable to the case of relatively large load. Such search space configuration parameters include a relatively large number of potential transmission positions of the PDCCH under each configured CCE aggregation degree; there can also be search space configuration parameters applicable to the case of relatively small load. Such search space configuration parameters include a relatively small number of potential transmission positions of the PDCCH under each configured CCE aggregation degree; among the N sets of search space configuration parameters, there can be search space configuration parameters applicable to different transmission / scheduling methods. The search space configuration parameters applicable to different transmission / scheduling methods include different DCI formats (DCI, downlink control indicator; format).

[0211] After configuring the search space for the terminal, the base station may use the pre-configured N sets of search space configuration parameters as the multiple sets of search space configuration parameters configured for the terminal, or may also obtain M sets of search space configuration parameters from the N sets of search space configuration parameters according to the initial state of the terminal as the multiple sets of search space configuration parameters configured for the terminal, where M is an integer greater than or equal to 1 and less than or equal to N. Specifically, the base station pre-sets the corresponding relationship between the initial state and the search space configuration parameters. The corresponding relationship between the initial state and the search space configuration parameters describes that the N sets of search space configuration parameters respectively correspond to different initial states. Among them, if the amount of data to be transmitted included in the initial state is large, the potential transmission positions of the PDCCH under each configured CCE aggregation level included in the corresponding search space configuration parameters are more; if the amount of data to be transmitted included in the initial state is small, the potential transmission positions of the PDCCH under each configured CCE aggregation level included in the corresponding search space configuration parameters are less; if the type of service to be processed included in the initial state is a scheduling-intensive service, the corresponding search space configuration parameters include a smaller search period, a larger number of time units continuously searched in each search period, and more monitoring opportunities in the time units; if the type of service to be processed included in the initial state is a scheduling-sparse service, the corresponding search space configuration parameters include a larger search period, a smaller number of time units continuously searched in each search period, and fewer monitoring opportunities in the time units; if the channel quality included in the initial state is good, the CCE aggregation level in each monitoring opportunity included in the corresponding search space configuration parameters is smaller; if the channel quality included in the initial state is poor, the CCE aggregation level in each monitoring opportunity included in the corresponding search space configuration parameters is larger.

[0212] After determining the access of the terminal, the base station can obtain the initial state of the terminal, which includes at least one of the amount of data to be transmitted by the terminal, the type of service to be processed, or the channel quality of the terminal. Then, according to the initial state of the terminal, the base station queries the correspondence between the initial state and the search space configuration parameters, and obtains M sets of search space configuration parameters from the N sets of search space configuration parameters. For example, assuming that the duration of each time unit is 1 ms (millisecond), the base station has pre-set three sets of search space configuration parameters. The first set of search space configuration parameters includes a search period of 10 ms, the number of time units continuously searched in each search period is 8, that is, continuously searched for 8 ms, the number of monitoring opportunities in the time unit is 4, the CCE aggregation degree in each monitoring opportunity is 1 and 2, the potential transmission positions of the PDCCH under each configured CCE aggregation degree are 6 and 6, and the downlink control information format is DCI format A. The second set of search space configuration parameters includes a search period of 20 ms, the number of time units continuously searched in each search period is 4, that is, continuously searched for 4 ms, the number of monitoring opportunities in the time unit is 3, the CCE aggregation degree in each monitoring opportunity is 2 and 4, the potential transmission positions of the PDCCH under each configured CCE aggregation degree are 6 and 2, and the downlink control information format is DCI format A. The third set of search space configuration parameters includes a search period of 40 ms, the number of time units continuously searched in each search period is 2, that is, continuously searched for 2 ms, the number of monitoring opportunities in the time unit is 2, the CCE aggregation degree in each monitoring opportunity is 8 and 16, the potential transmission positions of the PDCCH under each configured CCE aggregation degree are 2 and 2, and the DCI format is DCI format A. At this time, it is assumed that the terminal uses beamforming technology for transmission / scheduling, and this DCI format A is the downlink control information format corresponding to the beamforming technology. In practical applications, the terminal can also adopt other transmission / scheduling methods, that is, the base station can also configure the DCI format corresponding to other transmission / scheduling methods for the terminal, and the embodiments of the present disclosure do not limit this. If the amount of data to be transmitted included in the initial state of the terminal obtained by the base station is large, the type of service to be processed is a scheduling-intensive service, and the channel quality is good, the base station can obtain the first set of search space configuration parameters and the second set of search space configuration parameters as the two sets of search space configuration parameters configured for the terminal. If the amount of data to be transmitted included in the initial state of the terminal obtained by the base station is small, the type of service to be processed is a scheduling-sparse service, and the channel quality is poor, the base station can obtain the second set of search space configuration parameters and the third set of search space configuration parameters as the two sets of search space configuration parameters configured for the terminal.

[0213] In practical applications, after the base station obtains the initial state of the terminal, it can configure multiple sets of search space configuration parameters for the terminal according to the initial state of the terminal. For example, by default, the terminal uses beamforming technology for transmission / scheduling. If the initial state of the terminal obtained by the base station includes a large amount of data to be transmitted, the type of service to be processed is a scheduling-intensive service, and the channel quality is good, the base station can configure a smaller search period for the terminal, a larger number of time units for continuous search in each search period, a larger number of monitoring opportunities in the time unit, a smaller CCE aggregation degree in each monitoring opportunity, a larger number of potential transmission positions of the PDCCH under each configured CCE aggregation degree, and at least two sets of search space configuration parameters with DCI format being DCI format A; if the initial state of the terminal obtained by the base station includes a small amount of data to be transmitted, the type of service to be processed is a scheduling-sparse service, and the channel quality is poor, the base station can configure a larger search period for the terminal, a smaller number of time units for continuous search in each search period, a smaller number of monitoring opportunities in the time unit, a larger CCE aggregation degree in each monitoring opportunity, a smaller number of potential transmission positions of the PDCCH under each configured CCE aggregation degree, and at least two sets of search space configuration parameters with DCI format being DCI format A.

[0214] In step 102, parameter configuration information is sent to the terminal, and the parameter configuration information includes multiple sets of search space configuration parameters, so that the terminal can select the search space configuration parameter corresponding to its current state from the multiple sets of search space configuration parameters for switching.

[0215] Exemplarily, the base station can send the parameter configuration information to the terminal through high-layer signaling, and the parameter configuration information includes multiple sets of search space configuration parameters obtained by the base station. Optionally, the high-layer signaling can be RRC (Radio Resource Control) signaling.

[0216] In the technical solution provided by the embodiment of the present invention, the base station can configure multiple sets of search space configuration parameters for the terminal during initialization, so that when the terminal determines that its current state meets the preset conditions, it can obtain the search space configuration parameters that need to be switched according to the current state and perform switching, avoiding the delay caused by adjusting the search space configuration parameters through the high-layer signaling sent by the base station, realizing the scheme of the terminal adjusting the search space configuration parameters at the best time, improving the efficiency of the terminal adjusting the search space configuration parameters, and reducing the power consumption of the terminal.

[0217] In one embodiment, as Figure 1b shown, the method further includes step 103 and step 104:

[0218] In step 103, according to the initial state of the terminal, obtain the initial search space configuration parameters required for the terminal to monitor the search space from multiple sets of search space configuration parameters.

[0219] In step 104, according to the initial search space configuration parameters, send an initial monitoring instruction to the terminal, where the initial monitoring instruction includes the parameter identifier of the initial search space configuration parameters.

[0220] Exemplarily, after the base station configures multiple sets of search space configuration parameters for the terminal, it can also indicate the initial search space configuration parameters for the terminal from the multiple sets of search space configuration parameters, facilitating the terminal to monitor the search space using the initial search space configuration parameters.

[0221] Optionally, the base station can obtain the initial search space configuration parameters required for the terminal to monitor the search space from multiple sets of search space configuration parameters according to the initial state of the terminal. If the initial state of the terminal includes a relatively large amount of data to be transmitted, the service type to be processed is a scheduling-intensive service and the channel quality is good, in order to ensure the efficiency of data transmission at the initial stage, the base station can specify the search space configuration parameters with a relatively small search period, a relatively large number of time units for continuous search in each search period, a relatively large number of monitoring opportunities in the time unit, a relatively small CCE aggregation degree in each monitoring opportunity and / or a relatively large number of potential transmission positions of the PDCCH under each configured CCE aggregation degree as the initial search space configuration parameters; or if the initial state of the terminal includes a relatively small amount of data to be transmitted, the service type to be processed is a scheduling-sparse service and the channel quality is poor, in order to reduce the power consumption of the terminal at the initial stage, the base station can specify the search space configuration parameters with a relatively large search period, a relatively small number of time units for continuous search in each search period, a relatively small number of monitoring opportunities in the time unit, a relatively large CCE aggregation degree in each monitoring opportunity and / or a relatively small number of potential transmission positions of the PDCCH under each configured CCE aggregation degree as the initial search space configuration parameters. For example, assume that the base station obtains the first set of search space configuration parameters and the second set of search space configuration parameters as the two sets of search space configuration parameters configured for the terminal from the pre-set first set of search space configuration parameters, the second set of search space configuration parameters, and the third set of search space configuration parameters, that is, the initial state of the terminal includes a relatively large amount of data to be transmitted, the service type to be processed is a scheduling-intensive service and the channel quality is good. At this time, the base station can specify the first set of search space configuration parameters as the initial search space configuration parameters required for the terminal to monitor the search space. Assume that the base station obtains the second set of search space configuration parameters and the third set of search space configuration parameters as the two sets of search space configuration parameters configured for the terminal, that is, the initial state of the terminal includes a relatively small amount of data to be transmitted, the service type to be processed is a scheduling-sparse service and the channel quality is poor. At this time, the base station can specify the third set of search space configuration parameters as the initial search space configuration parameters required for the terminal to monitor the search space.

[0222] After determining the initial search space configuration parameters, the base station may send an initial monitoring instruction to the terminal. The initial monitoring instruction includes a parameter identifier of the initial search space configuration parameters, so that the terminal can obtain the initial search space configuration parameters from multiple sets of search space configuration parameters according to the parameter identifier. Optionally, the base station may add the initial monitoring instruction to the parameter configuration information and send it to the terminal, that is, the parameter configuration information sent by the base station to the terminal includes multiple sets of search space configuration parameters configured for the terminal and the initial monitoring instruction. In practical applications, the base station may also send the initial monitoring instruction to the terminal through other preset signaling or preset information, which is not limited in the embodiments of the present disclosure.

[0223] In the technical solution provided by the embodiments of the present invention, the base station may indicate the initial search space configuration parameters required for the terminal to monitor the search space according to the initial state of the terminal, avoiding the situation of resource waste caused by the terminal using inappropriate search space configuration parameters to detect the search space in the initial state, and further reducing the power consumption of the terminal.

[0224] In one embodiment, as Figure 1c shown, the method further includes steps 105 to 108:

[0225] In step 105, obtain the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal.

[0226] In step 106, determine whether the current working state of the terminal meets a first preset state.

[0227] In step 107, if the current working state of the terminal meets the first preset state, obtain the search space configuration parameters corresponding to the current working state of the terminal from multiple sets of search space configuration parameters.

[0228] In step 108, switch the search space configuration parameters of the currently configured search space to the search space configuration parameters corresponding to the current working state of the terminal.

[0229] The base station and the terminal can pre - agree on a first preset state. When the working state of the terminal meets the first preset state, the base station obtains the search space configuration parameters corresponding to the current working state of the terminal from multiple sets of search space configuration parameters, and switches the search space configuration parameters currently used for sending DCI to the terminal via PDCCH to the search space configuration parameters corresponding to the current working state of the terminal. At the same time, the terminal obtains the search space configuration parameters corresponding to the current working state from multiple sets of search space configuration parameters, and switches the search space configuration parameters of the currently monitored search space to the search space configuration parameters corresponding to the current working state of the terminal, and then continues to search the space using the search space configuration parameters corresponding to the current working state of the terminal. Through the first preset state pre - agreed by the terminal and the base station, a scheme for the base station and the terminal to synchronously switch parameters is realized, further improving the efficiency of the terminal to adjust the search space configuration parameters and reducing the power consumption of the terminal.

[0230] For example, the first preset state agreed by the base station and the terminal can be that "the current service type of the terminal is a scheduling - sparse service". Suppose the two sets of search space configuration parameters configured by the base station for the terminal are the first set of search space configuration parameters and the second set of search space configuration parameters, and the terminal currently uses the first set of search space configuration parameters to monitor the search space. At this time, the base station also configures this search space with the first set of search space configuration parameters. The base station obtains the current service type of the terminal in real - time. If the service type is a scheduling - sparse service, it is confirmed that the current working state of the terminal meets the first preset state. At this time, the base station can determine the second set of search space configuration parameters with a longer search period, fewer time units for continuous search in each search period, and fewer monitoring opportunities in the time units as the search space configuration parameters corresponding to the current working state of the terminal, and re - configure this search space with the second set of search space configuration parameters, and then send DCI to the terminal via the PDCCH of the re - configured search space. At the same time, the terminal can also determine that the current service type is a scheduling - sparse service, that is, determine that the current working state meets the first preset state. Then the terminal can switch the first set of search space configuration parameters for the currently monitored search space to the second set of search space configuration parameters, that is, continue to monitor the search space using the second set of search space configuration parameters, realizing a scheme for the base station and the terminal to synchronously switch parameters.

[0231] Alternatively, the first preset state agreed upon by the base station and the terminal may also be "the current service type of the terminal is a scheduling-intensive service". Assume that the search space configuration parameter of the current monitoring search space of the terminal is the second set of search space configuration parameters, that is, at this time, the base station currently configures this search space with the second set of search space configuration parameters. The base station can obtain the current service type of the terminal in real time. If the service type is a scheduling-intensive service, it is confirmed that the current working state of the terminal meets the first preset state. At this time, the base station can obtain the first set of search space configuration parameters with a shorter search period, a larger number of time units for continuous search in each search period, and more monitoring opportunities in the time units as the search space configuration parameters corresponding to the current working state of the terminal, and reconfigure this search space with the first set of search space configuration parameters, and then send DCI to the terminal through the PDCCH of the reconfigured search space. At the same time, the terminal can also determine that the current service type is a scheduling-intensive service, that is, determine that the current working state meets the first preset state. Then the terminal can switch the second set of search space configuration parameters of the current monitoring search space to the first set of search space configuration parameters, that is, continue to monitor the search space with the first set of search space configuration parameters, realizing the scheme of synchronous parameter switching between the base station and the terminal.

[0232] Exemplarily, the first preset state agreed upon by the base station and the terminal may be "the current channel quality of the terminal is greater than or equal to the first preset threshold". Assume that the two sets of search space configuration parameters configured by the base station for the terminal are the first set of search space configuration parameters and the second set of search space configuration parameters respectively, and the search space configuration parameter of the current monitoring search space of the terminal is the second set of search space configuration parameters, that is, at this time, the base station currently configures this search space with the second set of search space configuration parameters. When the terminal monitors the search space, it can report the current channel quality to the base station in real time, and then the base station can determine in real time whether the reported channel quality of the terminal is greater than or equal to the first preset threshold. If the channel quality is greater than or equal to the first preset threshold, it is confirmed that the current working state of the terminal meets the first preset state. At this time, the channel quality is good, and the base station can obtain the first set of search space configuration parameters with a smaller CCE aggregation degree in each monitoring opportunity as the search space configuration parameters corresponding to the current working state of the terminal, and reconfigure this search space with the first set of search space configuration parameters, and then send DCI to the terminal through the PDCCH of the reconfigured search space. At the same time, the terminal can also determine that the current channel quality is greater than or equal to the first preset threshold. At this time, the terminal can also switch the second set of search space configuration parameters of the current monitoring search space to the first set of search space configuration parameters, that is, continue to monitor the search space with the first set of search space configuration parameters, realizing the scheme of synchronous parameter switching between the base station and the terminal.

[0233] Alternatively, the first preset state agreed upon by the base station and the terminal may also be that "the current channel quality of the terminal is less than or equal to a second preset threshold", where the second preset threshold is less than the first preset threshold. Assume that the search space configuration parameter of the search space currently monitored by the terminal is the first set of search space configuration parameters, that is, at this time, the base station currently configures the search space with the first set of search space configuration parameters. The base station can determine in real time whether the channel quality reported by the terminal is less than or equal to the second preset threshold. If the channel quality is less than or equal to the second preset threshold, it is confirmed that the current working state of the terminal meets the first preset state, that is, the channel quality is poor at this time. The base station can obtain the second set of search space configuration parameters with a larger CCE aggregation degree in each monitoring opportunity as the search space configuration parameters corresponding to the current working state of the terminal, and reconfigure the search space with the second set of search space configuration parameters, and then send DCI to the terminal through the PDCCH of the reconfigured search space. At the same time, the terminal can also determine that the channel quality is less than or equal to the second preset threshold. At this time, the terminal can also switch the first set of search space configuration parameters of the currently monitored search space to the second set of search space configuration parameters, that is, continue to monitor the search space with the second set of search space configuration parameters, realizing the scheme of synchronous parameter switching between the base station and the terminal.

[0234] Alternatively, the base station and the terminal may also agree on a first preset state according to the PDCCH detection situation. The PDCCH detection situation may be the number of times, time, or period of continuous transmission / detection of PDCCH, or the number of times, time, or period of continuous non - transmission / non - detection of PDCCH. Assume that the first preset state agreed upon by the base station and the terminal is "the number of times of continuous non - transmission / non - detection of PDCCH is greater than or equal to a preset number threshold". The two sets of search space configuration parameters configured by the base station for the terminal are the first set of search space configuration parameters and the second set of search space configuration parameters respectively. And the terminal is currently using the first set of search space configuration parameters to monitor the search space. At this time, the base station also configures the search space with the first set of search space configuration parameters. The base station can record the number of times of non - transmission of PDCCH in real time, and then determine whether this number is greater than or equal to the preset number threshold. If this number is greater than or equal to the preset number threshold, it indicates that the terminal is currently running a scheduling - sparse service. At this time, it is confirmed that the current working state of the terminal meets the first preset state, and the second set of search space configuration parameters with a longer search period, fewer time units for continuous search in each search period, and fewer monitoring opportunities in the time units are obtained and determined as the search space configuration parameters corresponding to the current working state of the terminal, and the search space is re - configured with the second set of search space configuration parameters, and then DCI is sent to the terminal through the PDCCH of the re - configured search space. The terminal can also record the number of times of non - detection of PDCCH in real time, and then determine whether this number is greater than or equal to the preset number threshold. If this number is greater than or equal to the preset number threshold, at this time, it is confirmed that the current working state meets the first preset state, then the terminal can switch the first set of search space configuration parameters for monitoring the current search space to the second set of search space configuration parameters, that is, continue to monitor the search space with the second set of search space configuration parameters, realizing the scheme of synchronous parameter switching between the base station and the terminal. Optionally, the first preset state agreed upon by the base station and the terminal may also be "the number of times of continuous transmission / detection of PDCCH is greater than or equal to a preset number threshold", "the time of continuous transmission / detection of PDCCH is greater than or equal to a preset time threshold", "the period of continuous transmission / detection of PDCCH is greater than or equal to a preset period threshold", "the time of continuous non - transmission / non - detection of PDCCH is greater than or equal to a preset time threshold", or "the period of continuous non - transmission / non - detection of PDCCH is greater than or equal to a preset period threshold", etc. The embodiments of the present disclosure do not limit this.

[0235] In practical applications, the base station can also obtain the service load and transmission / scheduling mode of the terminal, and determine whether the current working state of the terminal meets the first preset state according to the service load and transmission / scheduling mode of the terminal. The judgment process can refer to the embodiments of the above - mentioned service type and channel quality, and the embodiments of the present disclosure will not elaborate here.

[0236] Optionally, the correspondence between the state and the search space configuration parameters can be configured by the base station or preset according to rules. The correspondence between the state and the search space configuration parameters describes that multiple sets of search space configuration parameters configured by the base station for the terminal respectively correspond to multiple different working states. For example, when the service type included in the working state is a scheduling-intensive service, the corresponding search space configuration parameters include a smaller search period, a larger number of time units continuously searched in each search period, and a larger number of monitoring opportunities in the time units; when the service type included in the working state is a scheduling-sparse service, the corresponding search space configuration parameters include a larger search period, a smaller number of time units continuously searched in each search period, and a smaller number of monitoring opportunities in the time units; when the service load included in the working state is large, the corresponding search space configuration parameters include fewer PDCCH potential transmission positions; when the service load included in the working state is small, the corresponding search space configuration parameters include more PDCCH potential transmission positions; when the channel quality included in the working state is good, the corresponding search space configuration parameters include a smaller CCE aggregation degree in each monitoring opportunity; when the channel quality included in the working state is poor, the corresponding search space configuration parameters include a larger CCE aggregation degree in each monitoring opportunity; when the PDCCH detection situation included in the working state is different, the corresponding search space configuration parameters are also different; or when the transmission / scheduling method included in the working state is different, the corresponding search space configuration parameters are also different. After the base station or the terminal obtains the current working state of the terminal, it can query the correspondence between the state and the search space configuration parameters to obtain the search space configuration parameters corresponding to the current working state.

[0237] In the technical solution provided by the embodiment of the present invention, the base station can adjust the search space configuration parameters according to the working state of the terminal. At the same time, the terminal can synchronously switch the search space configuration parameters, which improves the autonomy of the terminal to switch the search space configuration parameters, further improves the efficiency of the terminal to adjust the search space configuration parameters, and reduces the power consumption of the terminal.

[0238] In one embodiment, as Figure 1d shown, the method further includes steps 109 to 112:

[0239] In step 109, obtain the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling method, and PDCCH detection situation of the terminal.

[0240] In step 110, determine whether the current working state of the terminal meets the second preset state.

[0241] In step 111, if the current working state of the terminal meets the second preset state, determine the search space configuration parameter corresponding to the current working state of the terminal from multiple sets of search space configuration parameters.

[0242] In step 112, send a switching instruction to the terminal according to the search space configuration parameter corresponding to the terminal working state. The switching instruction includes the parameter identifier of the search space configuration parameter corresponding to the current working state of the terminal.

[0243] The base station can preset the second preset state in advance. During the process of the terminal monitoring the search space, the base station can obtain the current working state of the terminal in real time, then determine whether the working state meets the second preset state, and when the working state meets the second preset state, determine the search space configuration parameter corresponding to the current working state of the terminal from multiple sets of search space configuration parameters, and then send a switching instruction to the terminal according to the search space configuration parameter corresponding to the working state, so that the terminal can determine the search space configuration parameter corresponding to the current working state of the terminal from multiple sets of search space configuration parameters according to the parameter identifier included in the switching instruction, and switch the search space configuration parameter of the currently monitored search space to the search space configuration parameter corresponding to the current working state of the terminal.

[0244] Exemplarily, the second preset state preset by the base station can be that "the current service type of the terminal is a scheduling sparse service". Assume that the two sets of search space configuration parameters configured by the base station for the terminal are the first set of search space configuration parameters and the second set of search space configuration parameters respectively, and the terminal currently uses the first set of search space configuration parameters to monitor the search space, that is, at this time, the base station currently configures this search space with the first set of search space configuration parameters. The base station obtains the current service type of the terminal in real time. If the service type is a scheduling sparse service, it is confirmed that the current working state of the terminal meets the second preset state. At this time, the base station can obtain the second set of search space configuration parameters with a longer search period, fewer time units continuously searched in each search period and fewer monitoring opportunities in the time unit as the search space configuration parameter corresponding to the current working state of the terminal, and send a switching instruction to the terminal according to the second set of search space configuration parameters. The switching instruction includes the parameter identifier of the second set of search space configuration parameters. After receiving the switching instruction, the terminal can confirm the second set of search space configuration parameters as the search space configuration parameter corresponding to the current working state according to the parameter identifier included in the switching instruction, and then switch the search space configuration parameter of the currently monitored search space to the second set of search space configuration parameters. At the same time, the base station also configures this search space with the second set of search space configuration parameters, realizing the scheme of synchronous parameter switching between the base station and the terminal.

[0245] Alternatively, the second preset state preset by the base station may be "the current service type of the terminal is a scheduling-intensive service". Assume that the search space configuration parameter of the current monitoring search space of the terminal is the second set of search space configuration parameters, that is, at this time, the base station currently configures this search space with the second set of search space configuration parameters. The base station obtains the current service type of the terminal in real time. If the service type is a scheduling-intensive service, it is confirmed that the current working state of the terminal meets the second preset state. At this time, the base station can obtain the first set of search space configuration parameters with a shorter search period, a larger number of time units for continuous search in each search period, and more monitoring opportunities in the time units as the search space configuration parameters corresponding to the current working state of the terminal, and send a handover instruction to the terminal according to the first set of search space configuration parameters. The handover instruction includes the parameter identifier of the first set of search space configuration parameters. After receiving the handover instruction, the terminal can confirm the first set of search space configuration parameters as the search space configuration parameters corresponding to the current working state according to the parameter identifier included in the handover instruction, and then switch the search space configuration parameter of the current monitoring search space to the first set of search space configuration parameters. At the same time, the base station also configures this search space with the first set of search space configuration parameters, realizing the scheme of synchronous parameter switching between the base station and the terminal.

[0246] Exemplarily, the second preset state preset by the base station may be "the current channel quality of the terminal is greater than or equal to the first preset threshold". Assume that the two sets of search space configuration parameters configured by the base station for the terminal are the first set of search space configuration parameters and the second set of search space configuration parameters, and the search space configuration parameter of the current monitoring search space of the terminal is the second set of search space configuration parameters, that is, at this time, the base station currently configures this search space with the second set of search space configuration parameters. When the terminal monitors the search space, it can report the current channel quality to the base station in real time, and the base station can determine in real time whether the channel quality reported by the terminal is greater than or equal to the first preset threshold. If the channel quality is greater than or equal to the first preset threshold, it is confirmed that the current working state of the terminal meets the second preset state, indicating that the channel quality is good. At this time, the base station can obtain the first set of search space configuration parameters with a smaller CCE aggregation degree in each monitoring opportunity as the search space configuration parameters corresponding to the current working state of the terminal, and send a handover instruction to the terminal according to the first set of search space configuration parameters. The handover instruction includes the parameter identifier of the first set of search space configuration parameters. After receiving the handover instruction, the terminal can confirm the first set of search space configuration parameters as the search space configuration parameters corresponding to the current working state according to the parameter identifier included in the handover instruction, and then switch the search space configuration parameter of the current monitoring search space to the first set of search space configuration parameters. At the same time, the base station also configures this search space with the first set of search space configuration parameters, realizing the scheme of synchronous parameter switching between the base station and the terminal.

[0247] Alternatively, the second preset state preset by the base station may be that "the current channel quality of the terminal is less than or equal to a second preset threshold", where the second preset threshold is less than the first preset threshold. Assume that the search space configuration parameter of the search space currently monitored by the terminal is the first set of search space configuration parameters, that is, at this time, the base station currently configures the search space with the first set of search space configuration parameters. The base station can determine in real time whether the channel quality reported by the terminal is less than or equal to the second preset threshold. If it is determined that the current working state of the terminal satisfies the second preset state when the channel quality is less than or equal to the second preset threshold, indicating that the new arrival quality is poor, at this time, the base station can obtain the second set of search space configuration parameters with a larger CCE aggregation degree in each monitoring opportunity as the search space configuration parameters corresponding to the current working state of the terminal, and send a handover instruction to the terminal according to the second set of search space configuration parameters. The handover instruction includes the parameter identifier of the second set of search space configuration parameters. After receiving the handover instruction, the terminal can confirm the second set of search space configuration parameters as the search space configuration parameters corresponding to the current working state according to the parameter identifier included in the handover instruction, and then switch the search space configuration parameter of the currently monitored search space to the first set of search space configuration parameters. At the same time, the base station also configures the search space with the second set of search space configuration parameters, realizing the scheme of synchronous parameter switching between the base station and the terminal.

[0248] In practical applications, the base station can also obtain the service load, transmission / scheduling mode or PDCCH detection situation of the terminal, and determine whether the current working state of the terminal satisfies the second preset state according to the service load, transmission / scheduling mode or PDCCH detection situation of the terminal. The judgment process can refer to the above embodiments of service type and channel quality, and the embodiments of the present disclosure will not be elaborated here.

[0249] Optionally, the base station may send a handover instruction to the terminal by writing a preset character in the target field of a preset DCI. For example, the base station and the terminal may pre-agree that if there is a non-zero character in the target field of the preset DCI, it indicates that the target field carries a handover instruction, and the character in the target field is the parameter identifier included in the handover instruction. Suppose the parameter identifier corresponding to the first set of search space configuration parameters is 01, and the parameter identifier corresponding to the second set of search space configuration parameters is 10. When the base station determines that the first set of search space configuration parameters is the search space configuration parameter corresponding to the current working state of the terminal, it may write the character 01 in the target field of the preset DCI when sending the preset DCI to the terminal. The terminal can receive the preset DCI by monitoring the search space, and then reads that the character in the target field of the preset DCI is 01. At this time, the terminal can determine whether there is a parameter identifier that matches the character 01 among the multiple parameter identifiers corresponding to the multiple sets of pre-configured search space configuration parameters, that is, determine whether there is a search space configuration parameter with the parameter identifier being the character 01 among the multiple sets of pre-configured search space configuration parameters. If it exists, it is confirmed that the handover instruction sent by the base station is received, and the first set of search space configuration parameters with the parameter identifier being the character 01 is used as the search space configuration parameter corresponding to the current working state of the terminal, that is, the terminal can switch the second set of search space configuration parameters of the currently monitored search space to the first set of search space configuration parameters. When the base station determines that the second set of search space configuration parameters is the search space configuration parameter corresponding to the current working state of the terminal, it may write the character 10 in the target field of the preset DCI when sending the preset DCI to the terminal. The terminal can receive the preset DCI by monitoring the search space, and then reads that the character in the target field of the preset DCI is 10. At this time, the terminal can determine whether there is a parameter identifier that matches the character 10 among the multiple parameter identifiers corresponding to the multiple sets of pre-configured search space configuration parameters, that is, determine whether there is a search space configuration parameter with the parameter identifier being the character 10 among the multiple sets of pre-configured search space configuration parameters. If it exists, it is confirmed that the handover instruction sent by the base station is received, and the second set of search space configuration parameters with the parameter identifier being the character 10 is used as the search space configuration parameter corresponding to the current working state of the terminal, that is, the terminal can switch the first set of search space configuration parameters of the currently monitored search space to the second set of search space configuration parameters. Optionally, the preset DCI may be the DCI that the terminal currently has scheduled, or a newly introduced DCI, and the embodiments of the present disclosure do not limit this.

[0250] Alternatively, the base station can also send a handover instruction to the terminal through the target control channel. For example, the base station and the terminal can pre-agree that if there are non-zero characters in the target control channel, it indicates that the target control channel carries a handover instruction, and the characters sent by the target control channel are the parameter identifiers included in the handover instruction. Assume that the parameter identifier corresponding to the first set of search space configuration parameters is 01, and the parameter identifier corresponding to the second set of search space configuration parameters is 10. When the base station determines that the first set of search space configuration parameters is the search space configuration parameter corresponding to the current working state of the terminal, it can send the character 01 to the terminal through the target control channel. The terminal can monitor the target control channel. If it monitors that the target control channel transmits the character 01, it determines whether there is a parameter identifier that matches the character 01 among the multiple parameter identifiers corresponding to the pre-configured multiple sets of search space configuration parameters, that is, it determines whether there is a search space configuration parameter with the parameter identifier of the character 01 among the pre-configured multiple sets of search space configuration parameters. If it exists, it confirms that it has received the handover instruction, and uses the first set of search space configuration parameters with the parameter identifier of the character 01 as the search space configuration parameter corresponding to the current working state of the terminal, that is, the terminal can switch the second set of search space configuration parameters of the currently monitored search space to the first set of search space configuration parameters. When the base station determines that the second set of search space configuration parameters is the search space configuration parameter corresponding to the current working state of the terminal, it can send the character 10 to the terminal through the target control channel. The terminal can monitor the target control channel. If it monitors that the target control channel transmits the character 10, it determines whether there is a parameter identifier that matches the character 10 among the multiple parameter identifiers corresponding to the pre-configured multiple sets of search space configuration parameters, that is, it determines whether there is a search space configuration parameter with the parameter identifier of the character 10 among the pre-configured multiple sets of search space configuration parameters. If it exists, it confirms that it has received the handover instruction, and uses the second set of search space configuration parameters with the parameter identifier of the character 10 as the search space configuration parameter corresponding to the current working state of the terminal, that is, the terminal can switch the first set of search space configuration parameters of the currently monitored search space to the second set of search space configuration parameters. Optionally, the base station can notify the terminal of the listening parameters of the target control channel through broadcast information, and the terminal can then monitor the target control channel in real time according to the listening parameters; or, when the base station sends parameter configuration information to the terminal, it can add the listening parameters of the target control channel to the parameter configuration information and send it to the terminal; or the base station can also send the listening parameters of the target control channel to the terminal through other RRC signaling, and the embodiments of the present disclosure do not limit this.

[0251] Alternatively, the base station can also send a handover instruction to the terminal by writing a preset character in the target field of a preset MAC (Media Access Control) layer message. For example, the base station and the terminal can pre-agree that if there is a non-zero character in the target field of the preset MAC layer information, it indicates that the target field carries a handover instruction, and the character in the target field is the parameter identifier included in the handover instruction. Suppose the parameter identifier corresponding to the first set of search space configuration parameters is 01, and the parameter identifier corresponding to the second set of search space configuration parameters is 10. When the base station determines that the first set of search space configuration parameters is the search space configuration parameter corresponding to the current working state of the terminal, it can write the character 01 in the target field of the preset MAC layer information when sending the preset MAC layer information to the terminal. The terminal can receive the preset MAC layer information and then read that the character in the target field of the preset MAC layer information is 01. At this time, the terminal can determine whether there is a parameter identifier in the multiple parameter identifiers corresponding to the multiple sets of pre-configured search space configuration parameters that matches the character 01, that is, determine whether there is a search space configuration parameter with the parameter identifier being the character 01 among the multiple sets of pre-configured search space configuration parameters. If it exists, confirm that the handover instruction sent by the base station is received, and use the first set of search space configuration parameters with the parameter identifier being the character 01 as the search space configuration parameter corresponding to the current working state of the terminal, that is, the terminal can switch the second set of search space configuration parameters of the currently monitored search space to the first set of search space configuration parameters. When the base station determines that the second set of search space configuration parameters is the search space configuration parameter corresponding to the current working state of the terminal, it can write the character 10 in the target field of the preset MAC layer information when sending the preset MAC layer information to the terminal. The terminal can receive the preset MAC layer information through monitoring the search space and then read that the character in the target field of the preset MAC layer information is 10. At this time, the terminal can determine whether there is a parameter identifier in the multiple parameter identifiers corresponding to the multiple sets of pre-configured search space configuration parameters that matches the character 10, that is, determine whether there is a search space configuration parameter with the parameter identifier being the character 10 among the multiple sets of pre-configured search space configuration parameters. If it exists, confirm that the handover instruction sent by the base station is received, and use the second set of search space configuration parameters with the parameter identifier being the character 10 as the search space configuration parameter corresponding to the current working state of the terminal, that is, the terminal can switch the first set of search space configuration parameters of the currently monitored search space to the second set of search space configuration parameters.

[0252] In the technical solution provided by the embodiment of the present invention, the base station can instruct the terminal to switch between multiple sets of search space configuration parameters according to the working state of the terminal, improving the efficiency of the terminal to adjust the search space configuration parameters and reducing the power consumption of the terminal.

[0253] In one embodiment, asFigure 1e As shown, the method further includes steps 113 to 115:

[0254] In step 113, obtain the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal.

[0255] In step 114, determine whether to close the search space according to the current working state of the terminal.

[0256] In step 115, if it is determined to close the search space, send a close instruction to the terminal so that the terminal stops monitoring the search space according to the close instruction.

[0257] Exemplarily, the base station can obtain the current working state of the terminal in real time, and then determine whether to close the search space according to the current working state of the terminal. Optionally, the base station can obtain the current service type of the terminal, and then determine whether the service type is a scheduling sparse service. If the service type is a scheduling sparse service, it is confirmed that the search space can be closed. At this time, the base station can send a close instruction to the terminal, and the terminal can stop monitoring the search space according to the close instruction. Or, the base station can obtain the current service load of the terminal, and then determine whether the service load is less than or equal to a preset load threshold. If the service load is less than or equal to the preset load threshold, it is confirmed that the search space can be closed. At this time, the base station can send a close instruction to the terminal, and the terminal can stop monitoring the search space according to the close instruction. In practical applications, the base station can also obtain the current channel quality, transmission / scheduling mode, or PDCCH detection situation of the terminal, and then determine whether to close the search space according to the channel quality, transmission / scheduling mode, or PDCCH detection situation, and further determine whether to send a close instruction to the terminal. The specific implementation method can refer to the embodiments of the above service type and service load.

[0258] Optionally, the base station can send a close instruction to the terminal in the form of writing a preset close character in the reference field of the preset DCI. For example, the base station and the terminal can pre-agree that if there is a preset close character in the reference field of the preset DCI, it means that a close instruction is received. Assume that the preset close character is 00. When the base station determines that the search space needs to be closed, it can write the character 00 in the reference field of the preset DCI when sending the preset DCI to the terminal. The terminal can receive the preset DCI by monitoring the search space, and then read that the character in the reference field of the preset DCI is 00. At this time, the terminal confirms that it has received the close instruction and stops monitoring the search space. This reference field can be any field different from the target field.

[0259] Alternatively, the base station can also send a shutdown instruction to the terminal via a reference control channel. For example, the base station and the terminal can pre - agree that if non - zero characters are transmitted on the reference control channel, it indicates that the shutdown instruction has been received. The terminal can monitor the reference control channel. When non - zero characters are transmitted on the reference control channel, it confirms that the shutdown instruction has been received, and at this time, the terminal stops monitoring the search space.

[0260] Optionally, the base station can notify the terminal of the listening parameters of the reference control channel through broadcast information, and the terminal can then listen to the reference control channel in real - time according to the listening parameters; or, when the base station sends parameter configuration information to the terminal, it can add the listening parameters of the reference control channel to the parameter configuration information and send it to the terminal; or the base station can also send the listening parameters of the reference control channel to the terminal through other RRC signaling. The embodiments of the present disclosure do not limit this.

[0261] In the technical solution provided by the embodiments of the present invention, the base station can determine whether it is necessary to close the search space according to the current working state of the terminal, and when it is necessary to close, instruct the terminal to stop monitoring the search space, further reducing the power consumption of the terminal.

[0262] Terminal side

[0263] Figure 2a is a flowchart of a search space parameter configuration and adjustment method shown according to an exemplary embodiment. The search space parameter configuration and adjustment method is for a terminal, as Figure 2a shown, and the method includes the following steps 201 to 204:

[0264] In step 201, determine whether the current state meets a preset condition.

[0265] In step 202, if the current state meets the preset condition, obtain the search space configuration parameters corresponding to the current state from multiple sets of pre - stored search space configuration parameters.

[0266] Each set of search space configuration parameters includes at least one of a search period, the number of time units continuously searched in each search period, monitoring opportunities in a time unit, the CCE aggregation degree in each monitoring opportunity, the potential transmission positions of PDCCH under each CCE aggregation degree, and the downlink control information format.

[0267] In step 203, switch the search space configuration parameters of the currently monitored search space to the search space configuration parameters corresponding to the current state.

[0268] In step 204, continue to monitor the search space using the search space configuration parameters corresponding to the current state to obtain the downlink control information DCI sent by the base station through the PDCCH.

[0269] After the terminal accesses the base station, the base station can first configure a search space for the terminal, then obtain multiple sets of search space configuration parameters configured for the terminal according to a preset rule, and instruct the terminal to monitor the initial search space configuration parameters required for the search space. For example, the base station can obtain multiple sets of search space configuration parameters configured for the terminal, and then send parameter configuration information to the terminal according to the multiple sets of search space configuration parameters. The parameter configuration information includes the multiple sets of search space configuration parameters obtained by the base station. After receiving the parameter configuration information, the terminal can store the multiple sets of search space configuration parameters included in the parameter configuration information. Then, the base station obtains the initial search space configuration parameters from the multiple sets of search space configuration parameters according to the initial state of the terminal, and then generates an initial monitoring instruction according to the parameter identifier of the initial search space configuration parameters, and sends the initial monitoring instruction to the terminal. The terminal can then obtain the initial search space configuration parameters from the multiple sets of search space configuration parameters stored in advance according to the parameter identifier included in the initial monitoring instruction, and then use the initial search space configuration parameters to monitor the search space, that is, the terminal can start normal operation. During the normal operation of the terminal, the current state can be obtained in real time, and it can be determined whether the current state meets the preset conditions. If the current state meets the preset conditions, the terminal can obtain the search space configuration parameters corresponding to the current state from the multiple sets of search space configuration parameters stored in advance, and then switch the search space configuration parameters for monitoring the current search space to the search space configuration parameters corresponding to the current state, and then continue to monitor the search space using the search space configuration parameters corresponding to the current state to obtain the downlink control information DCI sent by the base station through the PDCCH.

[0270] Exemplarily, the current state of the terminal can be the state of the information currently received by the terminal, or the current working state of the terminal. Taking the current state of the terminal as the state of the currently received information as an example, when the terminal monitors the search space using the current search space configuration parameters, the base station can obtain the working state of the terminal in real time. The working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal. Then, it determines whether the working state meets the second preset state, and when it determines that the working state meets the second preset state, it determines the search space configuration parameters corresponding to the current working state of the terminal from multiple sets of search space configuration parameters, and then sends a handover instruction to the terminal according to the search space configuration parameters corresponding to the working state. The handover instruction includes the parameter identifier of the search space configuration parameters corresponding to the current working state of the terminal. The terminal can determine in real time whether it has received the handover instruction. If it determines that it has received the handover instruction, it can confirm that the current state has met the preset conditions. At this time, the terminal can obtain the search space configuration parameters corresponding to the parameter identifier included in the handover instruction from multiple sets of search space configuration parameters stored in advance as the search space configuration parameters corresponding to the current state. Then, the terminal can switch the search space configuration parameters for monitoring the current search space to the search space configuration parameters corresponding to the current state, and continue to monitor the search space using the search space configuration parameters corresponding to the current state to obtain the downlink control information DCI sent by the base station through the PDCCH.

[0271] Specifically, after the base station determines the search space configuration parameters corresponding to the current working state of the terminal, it can first obtain the parameter identifier of the search space configuration parameters corresponding to the working state, then write the parameter identifier into the target field of the preset DCI, and send the preset DCI to the terminal through the PDCCH. The terminal can receive the preset DCI sent by the base station through the PDCCH by detecting the PDCCH, then obtain the information of the target field of the preset DCI, and determine whether there is a parameter identifier in the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters that matches the information of the target field of the preset DCI, that is, determine whether there is a search space configuration parameter in the multiple sets of search space configuration parameters whose parameter identifier is the information of the target field of the preset DCI. If there is a parameter identifier in the multiple parameter identifiers that matches the information of the target field of the preset DCI, that is, there is a search space configuration parameter in the multiple sets of search space configuration parameters whose parameter identifier is the information of the target field of the preset DCI, it is confirmed that the handover instruction sent by the base station has been received.

[0272] Alternatively, after determining the search space configuration parameters corresponding to the current working state of the terminal, the base station may first obtain the parameter identifier of the search space configuration parameters corresponding to the working state, and then send the parameter identifier to the terminal through the target control channel. The terminal can monitor the target control channel in real time and obtain the information transmitted by the target control channel, and then determine whether there is a parameter identifier in the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters that matches the information transmitted by the target control channel, that is, determine whether there is a search space configuration parameter in the multiple sets of search space configuration parameters whose parameter identifier is the information transmitted by the target control channel. If there is a parameter identifier in the multiple parameter identifiers that matches the information transmitted by the target control channel, that is, there is a search space configuration parameter in the multiple sets of search space configuration parameters whose parameter identifier is the information transmitted by the target control channel, it is confirmed that the handover instruction sent by the base station is received.

[0273] Alternatively, after determining the search space configuration parameters corresponding to the current working state of the terminal, the base station may first obtain the parameter identifier of the search space configuration parameters corresponding to the working state, and then write the parameter identifier into the target field of the preset MAC layer information and send the preset MAC layer information to the terminal. After receiving the preset MAC layer information sent by the base station, the terminal obtains the information in the target field of the preset MAC layer information and determines whether there is a parameter identifier in the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters that matches the information in the target field of the preset MAC layer information, that is, determine whether there is a search space configuration parameter in the multiple sets of search space configuration parameters whose parameter identifier is the information in the target field of the preset MAC layer information. If there is a parameter identifier in the multiple parameter identifiers that matches the information in the target field of the preset MAC layer information, that is, there is a search space configuration parameter in the multiple sets of search space configuration parameters whose parameter identifier is the information in the target field of the preset MAC layer information, it is confirmed that the handover instruction sent by the base station is received.

[0274] Taking the current state of the terminal as the current working state as an example, the base station and the terminal can pre - agree on a first preset state. When the terminal monitors the search space using the current search space configuration parameters, it can obtain the current working state in real - time, and then determine whether the current working state meets the first preset state. If the current working state meets the first preset state, it is confirmed that the current state has met the preset conditions, and then the search space configuration parameters corresponding to the current working state are obtained from multiple sets of pre - stored search space configuration parameters as the search space configuration parameters corresponding to the current state. Then the terminal can switch the search space configuration parameters for monitoring the current search space to the search space configuration parameters corresponding to the current state, and continue to monitor the search space using the search space configuration parameters corresponding to the current state to obtain the downlink control information DCI sent by the base station through PDCCH. At the same time, the base station can also obtain the current working state of the terminal, and when it determines that the working state of the terminal meets the first preset state, the base station obtains the search space configuration parameters corresponding to the current working state of the terminal from multiple sets of search space configuration parameters, and switches the search space configuration parameters used when sending DCI to the terminal through PDCCH currently to the search space configuration parameters corresponding to the current working state of the terminal. Through the first preset state pre - agreed between the terminal and the base station, a scheme for the base station and the terminal to synchronously switch parameters is realized, further improving the efficiency of the terminal to adjust the search space configuration parameters and reducing the power consumption of the terminal.

[0275] Exemplarily, the first preset state agreed upon by the base station and the terminal may be that "the current service type of the terminal is a scheduling sparse service". Suppose the two sets of search space configuration parameters configured by the base station for the terminal are the first set of search space configuration parameters and the second set of search space configuration parameters respectively, and the terminal currently uses the first set of search space configuration parameters to monitor the search space. At this time, the base station also configures the search space with the first set of search space configuration parameters. During the normal operation of the terminal, it can obtain the current service type in real time, determine whether the current service type is a scheduling sparse service. If the current service type is a scheduling sparse service, it is confirmed that the current working state of the terminal meets the first preset state. At this time, the terminal can use the second set of search space configuration parameters with a longer search period, fewer time units continuously searched in each search period, and fewer monitoring opportunities in the time units stored currently as the search space configuration parameters corresponding to the current working state of the terminal, and switch the first set of search space configuration parameters for monitoring the search space currently to the second set of search space configuration parameters, that is, continue to monitor the search space using the second set of search space configuration parameters; at the same time, the base station can also determine that the current service type of the terminal is a scheduling sparse service, that is, the current working state of the terminal meets the first preset state, then the base station can obtain the second set of search space configuration parameters as the search space configuration parameters corresponding to the current working state of the terminal, and reconfigure the search space with the second set of search space configuration parameters, and then send DCI to the terminal through the PDCCH of the reconfigured search space, realizing the scheme of synchronous parameter switching between the base station and the terminal.

[0276] Alternatively, the first preset state agreed upon by the base station and the terminal may be that "the current service type of the terminal is a scheduling-intensive service". Suppose the two sets of search space configuration parameters configured by the base station for the terminal are the first set of search space configuration parameters and the second set of search space configuration parameters, and the terminal is currently using the second set of search space configuration parameters to monitor the search space. At this time, the base station also configures the search space with the second set of search space configuration parameters. During the normal operation of the terminal, it can obtain the current service type in real time, determine whether the current service type is a scheduling-intensive service. If the current service type is a scheduling-intensive service, it is confirmed that the current working state of the terminal meets the first preset state. At this time, the terminal can use the first set of search space configuration parameters with a shorter search period, a larger number of time units continuously searched in each search period, and more monitoring opportunities in the time units as the search space configuration parameters corresponding to the current working state of the terminal, and switch the second set of search space configuration parameters for monitoring the search space currently used to the first set of search space configuration parameters, that is, continue to monitor the search space using the first set of search space configuration parameters. At the same time, the base station can also determine that the current service type of the terminal is a scheduling-intensive service, that is, the current working state of the terminal meets the first preset state. Then the base station can also obtain the first set of search space configuration parameters as the search space configuration parameters corresponding to the current working state of the terminal, and reconfigure the search space with the first set of search space configuration parameters. Then, the base station sends DCI to the terminal through the PDCCH of the reconfigured search space, implementing a solution for the base station and the terminal to synchronously switch parameters.

[0277] Exemplarily, the first preset state agreed upon by the base station and the terminal can be that "the current channel quality of the terminal is greater than or equal to the first preset threshold". Assume that the two sets of search space configuration parameters configured by the base station for the terminal are the first set of search space configuration parameters and the second set of search space configuration parameters respectively, and the search space configuration parameter of the search space currently monitored by the terminal is the second set of search space configuration parameters, that is, at this time the base station currently configures this search space with the second set of search space configuration parameters. When the terminal monitors the search space, it can obtain the channel quality in real time and report it to the base station. After the terminal obtains the channel quality, it can determine whether the channel quality is greater than or equal to the first preset threshold. If the channel quality is greater than or equal to the first preset threshold, it is confirmed that the current working state of the terminal meets the first preset state. At this time, the channel quality is good, and the terminal can obtain the first set of search space configuration parameters with a smaller CCE aggregation degree in each monitoring opportunity currently stored as the search space configuration parameter corresponding to the current working state, and then switch the second set of search space configuration parameters of the current monitored search space to the first set of search space configuration parameters, that is, continue to monitor the search space using the first set of search space configuration parameters; at the same time, the base station can also determine according to the channel quality reported by the terminal that the current channel quality of the terminal is greater than or equal to the first preset threshold, that is, the current working state of the terminal meets the first preset state, then the base station can obtain the first set of search space configuration parameters as the search space configuration parameter corresponding to the current working state of the terminal, and reconfigure this search space with the first set of search space configuration parameters, and then send DCI to the terminal through the PDCCH of the reconfigured search space, realizing the scheme of synchronous parameter switching between the base station and the terminal.

[0278] Alternatively, the first preset state agreed upon by the base station and the terminal may be that "the current channel quality of the terminal is less than or equal to a second preset threshold", where the second preset threshold is less than the first preset threshold. Assume that the search space configuration parameter of the current monitoring search space of the terminal is the first set of search space configuration parameters, that is, at this time, the base station currently configures this search space with the first set of search space configuration parameters. After the terminal obtains the channel quality, it can determine whether the channel quality is less than or equal to the second preset threshold. If the channel quality is less than or equal to the second preset threshold, it is confirmed that the current working state of the terminal meets the first preset state. At this time, the channel quality is poor, and the terminal can obtain the second set of search space configuration parameters with a larger CCE aggregation degree in each monitoring occasion stored currently as the search space configuration parameters corresponding to the current working state, and then switch the first set of search space configuration parameters of the current monitoring search space to the second set of search space configuration parameters, that is, continue to monitor the search space with the second set of search space configuration parameters; at the same time, the base station can also determine according to the channel quality reported by the terminal that the current channel quality of the terminal is less than or equal to the second preset threshold, that is, the current working state of this terminal meets the first preset state, then the base station can obtain the second set of search space configuration parameters as the search space configuration parameters corresponding to the current working state of the terminal, and reconfigure this search space with the second set of search space configuration parameters, and then send DCI to the terminal through the PDCCH of the reconfigured search space, realizing the scheme of synchronous parameter switching between the base station and the terminal.

[0279] Alternatively, the terminal and the base station can also agree on a first preset state according to the PDCCH detection situation. The PDCCH detection situation can be the number of consecutive transmissions / detections of PDCCH, time or period, or the number of consecutive non-transmissions / non-detections of PDCCH, time or period. Assume that the first preset state agreed upon by the terminal and the base station is "the number of consecutive non-transmissions / non-detections of PDCCH is greater than or equal to a preset number threshold". The two sets of search space configuration parameters configured by the base station for the terminal are the first set of search space configuration parameters and the second set of search space configuration parameters respectively, and the terminal currently uses the first set of search space configuration parameters to monitor the search space. At this time, the base station also configures the search space with the first set of search space configuration parameters. The terminal can record the number of non-detections of PDCCH in real time, and then determine whether the number is greater than or equal to the preset number threshold. If the number is greater than or equal to the preset number threshold, it indicates that a scheduling sparse service is currently running. At this time, it is confirmed that the current working state meets the first preset state, and the second set of search space configuration parameters with a longer search period, fewer time units for continuous search in each search period, and fewer monitoring opportunities in the time units are obtained and determined as the search space configuration parameters corresponding to the current working state. Then, the first set of search space configuration parameters for the current monitored search space is switched to the second set of search space configuration parameters, that is, the second set of search space configuration parameters is used to continue monitoring the search space. At the same time, the base station can also record the number of non-transmissions of PDCCH in real time, and then determine whether the number is greater than or equal to the preset number threshold. If the number is greater than or equal to the preset number threshold, it is confirmed that the current working state of the terminal meets the first preset state. At this time, the base station can obtain the second set of search space configuration parameters as the search space configuration parameters corresponding to the current working state of the terminal, and reconfigure the search space with the second set of search space configuration parameters. Then, DCI is sent to the terminal through the PDCCH of the reconfigured search space, realizing a scheme in which the base station and the terminal synchronously perform parameter switching. Optionally, the first preset state agreed upon by the base station and the terminal can also be "the number of consecutive transmissions / detections of PDCCH is greater than or equal to a preset number threshold", "the time of consecutive transmissions / detections of PDCCH is greater than or equal to a preset time threshold", "the period of consecutive transmissions / detections of PDCCH is greater than or equal to a preset period threshold", "the time of consecutive non-transmissions / non-detections of PDCCH is greater than or equal to a preset time threshold", or "the period of consecutive non-transmissions / non-detections of PDCCH is greater than or equal to a preset period threshold", etc. The embodiments of the present disclosure do not limit this.

[0280] In practical applications, the terminal can also obtain the current service load and transmission / scheduling method, and determine whether the current working state meets the first preset state according to the current service load and transmission / scheduling method. The judgment process can refer to the above embodiments of service type and channel quality, and the embodiments of the present disclosure will not elaborate here.

[0281] Optionally, the correspondence between the state and the search space configuration parameters can be configured by the base station or preset according to rules. The correspondence between the state and the search space configuration parameters describes that multiple sets of search space configuration parameters configured by the base station for the terminal respectively correspond to multiple different working states. For example, when the service type included in the working state is a scheduling-intensive service, the corresponding search space configuration parameters include a smaller search period, a larger number of time units continuously searched in each search period, and a larger number of monitoring opportunities in the time units; when the service type included in the working state is a scheduling-sparse service, the corresponding search space configuration parameters include a larger search period, a smaller number of time units continuously searched in each search period, and a smaller number of monitoring opportunities in the time units; when the service load included in the working state is large, the corresponding search space configuration parameters include fewer PDCCH potential transmission positions; when the service load included in the working state is small, the corresponding search space configuration parameters include more PDCCH potential transmission positions; when the channel quality included in the working state is good, the corresponding search space configuration parameters include a smaller CCE aggregation degree in each monitoring opportunity; when the channel quality included in the working state is poor, the corresponding search space configuration parameters include a larger CCE aggregation degree in each monitoring opportunity; or when the transmission / scheduling mode included in the working state is different, the corresponding search space configuration parameters are also different. After the base station or the terminal obtains the current working state of the terminal, it can query the correspondence between the state and the search space configuration parameters to obtain the search space configuration parameters corresponding to the current working state.

[0282] In the technical solution provided by the embodiment of the present invention, when the terminal determines that the current state meets the preset conditions, it can obtain the search space configuration parameters that need to be switched according to the current state and perform the switch, avoiding the delay caused by adjusting the search space configuration parameters through the high-layer signaling sent by the base station, realizing the solution for the terminal to adjust the search space configuration parameters at the best time, improving the efficiency of the terminal to adjust the search space configuration parameters, and reducing the power consumption of the terminal.

[0283] In one embodiment, as Figure 2b shown, the method further includes step 205 and step 206:

[0284] In step 205, receive a shutdown instruction sent by the base station, where the shutdown instruction instructs to shut down the search space.

[0285] In step 206, stop monitoring the search space according to the shutdown instruction.

[0286] Exemplarily, the base station can obtain the current working state of the terminal in real time, and then determine whether to close the search space according to the current working state of the terminal. Optionally, the base station can obtain the current service type of the terminal, and then determine whether the service type is a scheduling sparse service. If the service type is a scheduling sparse service, it is confirmed that the search space can be closed. At this time, the base station can send a close command to the terminal. After receiving the close command, the terminal can stop monitoring the search space according to the close command. Or, the base station can obtain the current service load of the terminal, and then determine whether the service load is less than or equal to a preset load threshold. If the service load is less than or equal to the preset load threshold, it is confirmed that the search space can be closed. At this time, the base station can send a close command to the terminal. After receiving the close command, the terminal can stop monitoring the search space according to the close command. In practical applications, the base station can also obtain the current channel quality, transmission / scheduling mode or PDCCH detection situation of the terminal, and then determine whether to close the search space according to the channel quality, transmission / scheduling mode or PDCCH detection situation, and further determine whether to send a close command to the terminal. The specific implementation method can refer to the embodiments of the above service type and service load.

[0287] Optionally, the base station can send a close command to the terminal in the form of writing a preset close character in the reference field of the preset DCI. For example, the base station and the terminal can pre-agree that if there is a preset close character in the reference field of the preset DCI, it means that the close command is received. Assume that the preset close character is 00. When the base station determines that the search space needs to be closed, it can write the character 00 in the reference field of the preset DCI when sending the preset DCI to the terminal. The terminal can receive the preset DCI by monitoring the search space, and then reads that the character in the reference field of the preset DCI is 00. At this time, the terminal confirms that it has received the close command and stops monitoring the search space.

[0288] Or, the base station can also send a close command to the terminal through the reference control channel. For example, the base station and the terminal can pre-agree that if there is a non-zero character in the reference control channel, it means that the close command is received. The terminal can listen to the reference control channel. If there is a non-zero character in the reference control channel, it confirms that it has received the close command. At this time, the terminal stops monitoring the search space.

[0289] Optionally, the base station can notify the listening parameters of the reference control channel to the terminal through broadcast information, and the terminal can then listen to the reference control channel in real time according to the listening parameters; or, when the base station sends parameter configuration information to the terminal, it can add the listening parameters of the reference control channel to the parameter configuration information and send it to the terminal; or the base station can also send the listening parameters of the reference control channel to the terminal through other RRC signaling. The embodiments of the present disclosure do not limit this.

[0290] In the technical solution provided by the embodiment of the present invention, the terminal can stop monitoring the search space according to the indication of the base station, further reducing the power consumption of the terminal.

[0291] The following uses a specific embodiment to illustrate the technical solution in this embodiment. Specific Embodiment 1

[0293] Figure 3 FIG. is an interaction diagram of a search space parameter configuration and adjustment method shown according to an exemplary embodiment. The search space parameter configuration and adjustment method is applied to a terminal and a base station. As Figure 3 shown, it includes the following steps 301 to step 313:

[0294] In step 301, after configuring the search space for the terminal, the base station obtains multiple sets of search space configuration parameters and initial search space configuration parameters that need to be configured for the terminal according to the initial state of the terminal.

[0295] The search space configuration parameters include at least one of a search period, the number of time units for continuous search in each search period, monitoring opportunities in a time unit, the CCE aggregation level in each monitoring opportunity, the potential transmission position of the PDCCH at each CCE aggregation level, and the DCI format. The initial search space configuration parameter is the search space configuration parameter required for the terminal to initially monitor the search space.

[0296] In step 302, the base station sends parameter configuration information to the terminal. The parameter configuration information includes the multiple sets of search space configuration parameters and an initial monitoring instruction.

[0297] The initial monitoring instruction includes a parameter identifier of the initial search space configuration parameter.

[0298] In step 303, the terminal stores the multiple sets of search space configuration parameters included in the parameter configuration information.

[0299] In step 304, the terminal obtains the initial search space configuration parameter from the multiple sets of search space configuration parameters according to the parameter identifier included in the initial monitoring instruction.

[0300] In step 305, the terminal monitors the search space using the initial search space configuration parameter.

[0301] In step 306, the base station obtains the working state of the terminal in real time. The working state includes at least one of the current service type, service load, channel quality, transmission / scheduling method, and PDCCH detection situation.

[0302] In step 307, the base station determines whether the current working state of the terminal meets the second preset state; if not, execute step 308; if so, execute step 309.

[0303] In step 308, the base station keeps its current state unchanged.

[0304] At this time, the base station continues to configure the search space of the PDCCH with the current search space configuration parameters, and at the same time, the terminal continues to monitor this search space with the current search space configuration parameters.

[0305] In step 309, the base station determines the search space configuration parameters corresponding to the current working state of the terminal from multiple sets of search space configuration parameters configured for the terminal.

[0306] In step 310, the base station configures the search space of the PDCCH with the search space configuration parameters corresponding to the current working state of the terminal.

[0307] In step 311, the base station sends a handover instruction to the terminal.

[0308] The handover instruction includes the parameter identifier of the search space configuration parameters corresponding to the current working state of the terminal.

[0309] In step 312, the terminal obtains the search space configuration parameters corresponding to the parameter identifier from multiple sets of stored search space configuration parameters according to the handover instruction.

[0310] In step 313, the terminal continues to monitor the search space with the search space configuration parameters corresponding to the parameter identifier.

[0311] An embodiment of the present invention provides a method for configuring and adjusting search space parameters. The base station can configure multiple sets of search space configuration parameters for the terminal during initialization, so that when the terminal determines that the current state meets the preset conditions, it can obtain the search space configuration parameters that need to be switched according to the current state and perform the switch, avoiding the delay caused by adjusting the search space configuration parameters through the high-layer signaling sent by the base station, realizing the scheme for the terminal to adjust the search space configuration parameters at the best time, improving the efficiency of the terminal to adjust the search space configuration parameters, and reducing the power consumption of the terminal. Specific Embodiment 2

[0313] Figure 4 is an interaction diagram of a method for configuring and adjusting search space parameters shown according to an exemplary embodiment. The method for configuring and adjusting search space parameters is applied to a terminal and a base station. As Figure 4 shown, it includes the following steps 401 to step 420:

[0314] In step 401, after configuring the search space for the terminal, the base station obtains multiple sets of search space configuration parameters that need to be configured for the terminal according to the initial state of the terminal.

[0315] Each set of search space configuration parameters includes at least one of the search period for monitoring the search space, the number of time units for continuous search in each search period, the monitoring opportunity in the time unit, the CCE aggregation level in each monitoring opportunity, the potential transmission location of the PDCCH at each CCE aggregation level, and the DCI format.

[0316] In step 402, the base station sends parameter configuration information to the terminal, and the parameter configuration information includes multiple sets of search space configuration parameters.

[0317] In step 403, the terminal stores the multiple sets of search space configuration parameters included in the parameter configuration information.

[0318] In step 404, the base station obtains the initial search space configuration parameters for the terminal to initially monitor the search space from the multiple sets of search space configuration parameters according to the initial state of the terminal.

[0319] In step 405, the base station sends an initial monitoring instruction to the terminal according to the initial search space configuration parameters.

[0320] The initial monitoring instruction includes the parameter identifier of the initial search space configuration parameters.

[0321] In step 406, the terminal obtains the initial search space configuration parameters from the multiple sets of search space configuration parameters according to the initial monitoring instruction.

[0322] In step 407, the terminal monitors the search space using the initial search space configuration parameters.

[0323] In step 408, the base station obtains the working state of the terminal in real time, and the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation.

[0324] In step 409, the base station determines whether to close the search space according to the working state of the terminal; if the search space is to be closed, step 410 is executed; if the search space is not to be closed, step 412 is executed.

[0325] In step 410, the base station sends a shutdown instruction to the terminal.

[0326] In step 411, the terminal stops monitoring the search space according to the shutdown instruction.

[0327] In step 412, the base station determines whether the working state of the terminal meets the first preset state; if not, step 413 is executed; if so, step 414 is executed.

[0328] In step 413, the base station keeps the current state unchanged.

[0329] At this time, the base station continues to configure the search space of the PDCCH using the current search space configuration parameters, while the terminal continues to monitor this search space using the current search space configuration parameters.

[0330] In step 414, the base station determines the search space configuration parameters corresponding to the current working state of the terminal from multiple sets of search space configuration parameters.

[0331] In step 415, the base station configures the search space of the PDCCH using the search space configuration parameters corresponding to the current working state of the terminal.

[0332] In step 416, the terminal obtains the current working state in real time, and this working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation.

[0333] In step 417, the terminal determines whether the current working state meets the first preset state; if not, execute step 418; if so, execute step 419.

[0334] In step 418, the terminal keeps the current state unchanged.

[0335] At this time, the base station continues to configure the search space of the PDCCH using the current search space configuration parameters, while the terminal continues to monitor this search space using the current search space configuration parameters.

[0336] In step 419, the terminal determines the search space configuration parameters corresponding to the current working state from the configured multiple sets of search space configuration parameters.

[0337] In step 420, the terminal monitors the search space using the search space configuration parameters corresponding to the current working state to obtain the DCI sent by the base station through the PDCCH.

[0338] An embodiment of the present invention provides a method for configuring and adjusting search space parameters. The base station can configure multiple sets of search space configuration parameters for the terminal during initialization, so that when the terminal determines that the current state meets the preset conditions, it can obtain the search space configuration parameters that need to be switched according to the current state and perform the switch, avoiding the delay caused by adjusting the search space configuration parameters through the high-layer signaling sent by the base station, realizing the solution for the terminal to adjust the search space configuration parameters at the best time, improving the efficiency of the terminal to adjust the search space configuration parameters, and reducing the power consumption of the terminal.

[0339] The following is an embodiment of the device of the present invention, which can be used to execute the method embodiment of the present invention.

[0340] Figure 5aIt is a schematic structural diagram of a search space parameter configuration and adjustment device 50 shown according to an exemplary embodiment. The device 50 can be implemented as part or all of an electronic device through software, hardware, or a combination of both. As Figure 5a shown, the search space parameter configuration and adjustment device 50 includes a first determination module 501, a first acquisition module 502, a switching module 503, and a first monitoring module 504.

[0341] Among them, the first determination module 501 is used to determine whether the current state meets a preset condition.

[0342] The first acquisition module 502 is used to, if the current state meets the preset condition, obtain the search space configuration parameter corresponding to the current state from multiple sets of pre-stored search space configuration parameters. Each set of the search space configuration parameters includes at least one of a search period, the number of time units for continuous search in each search period, the monitoring opportunity in the time unit, the control channel element (CCE) aggregation degree in each monitoring opportunity, the potential transmission position of the physical downlink control channel (PDCCH) under each CCE aggregation degree, and the downlink control information format.

[0343] The switching module 503 is used to switch the search space configuration parameter of the currently monitored search space to the search space configuration parameter corresponding to the current state.

[0344] The first monitoring module 504 is used to continue monitoring the search space by using the search space configuration parameter corresponding to the current state to obtain the downlink control information (DCI) sent by the base station through the PDCCH.

[0345] In one embodiment, as Figure 5b shown, the first determination module 501 includes a first determination sub-module 5011 and a first confirmation sub-module 5012.

[0346] Among them, the first determination sub-module 5011 is used to determine whether a handover instruction sent by the base station is received currently. The handover instruction includes a parameter identifier of the search space configuration parameter indicating the base station to instruct the terminal to switch.

[0347] The first confirmation sub-module 5012 is used to, if it is determined that the handover instruction has been received, confirm that the current state has met the preset condition.

[0348] In one embodiment, as Figure 5cAs shown, the first obtaining module 502 includes a first obtaining sub-module 5021, and the first obtaining sub-module 5021 is configured to obtain, from multiple sets of pre-stored search space configuration parameters, the search space configuration parameter corresponding to the parameter identifier included in the handover instruction as the search space configuration parameter corresponding to the current state.

[0349] In one embodiment, as Figure 5d shown, the first determining sub-module 5011 includes a first obtaining unit 5011a, a first determining unit 5011b, and a first confirming unit 5011c.

[0350] Among them, the first obtaining unit 5011a is configured to obtain the information of the target field of the preset DCI sent by the base station through the PDCCH.

[0351] The first determining unit 5011b is configured to determine whether there is a parameter identifier in the multiple parameter identifiers respectively corresponding to the multiple sets of search space configuration parameters that matches the information of the target field of the preset DCI.

[0352] The first confirming unit 5011c is configured to confirm receiving the handover instruction sent by the base station if there is a parameter identifier in the multiple parameter identifiers that matches the information of the target field of the preset DCI.

[0353] In one embodiment, as Figure 5e shown, the first determining sub-module 5011 includes a second obtaining unit 5011d, a second determining unit 5011e, and a second confirming unit 5011f.

[0354] Among them, the second obtaining unit 5011d is configured to obtain in real time the information transmitted by the target control channel.

[0355] The second determining unit 5011e is configured to determine whether there is a parameter identifier in the multiple parameter identifiers respectively corresponding to the multiple sets of search space configuration parameters that matches the information transmitted by the target control channel.

[0356] The second confirming unit 5011f is configured to confirm receiving the handover instruction sent by the base station if there is a parameter identifier in the multiple parameter identifiers that matches the information transmitted by the target control channel.

[0357] In one embodiment, as Figure 5f shown, the first determining sub-module 5011 includes a third obtaining unit 5011g, a third determining unit 5011h, and a third confirming unit 5011i.

[0358] Among them, the third obtaining unit 5011g is configured to obtain in real time the information of the target field of the preset medium access control (MAC) layer message.

[0359] A third determination unit 5011h, configured to determine whether there is a parameter identifier that matches the information of the target field of the preset MAC layer message among the multiple parameter identifiers respectively corresponding to the multiple sets of search space configuration parameters.

[0360] A third confirmation unit 5011i, configured to confirm receiving the handover instruction sent by the base station if there is a parameter identifier that matches the information of the target field of the preset MAC layer message among the multiple parameter identifiers.

[0361] In one embodiment, as Figure 5g shown, the first determination module 501 includes a second acquisition sub-module 5013, a second determination sub-module 5014, and a second confirmation sub-module 5015.

[0362] Among them, the second acquisition sub-module 5013 is configured to acquire the current working state, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation;

[0363] The second determination sub-module 5014 is configured to determine whether the current working state meets a first preset state.

[0364] The second confirmation sub-module 5015 is configured to confirm that the current state meets the preset condition if the current working state meets the first preset state.

[0365] In one embodiment, as Figure 5h shown, the first acquisition module 502 includes a third acquisition sub-module 5022, and the third acquisition sub-module 5022 is configured to acquire the search space configuration parameter corresponding to the current working state according to the corresponding relationship between the preset state and the search space configuration parameter, where the corresponding relationship between the state and the search space configuration parameter describes that the multiple sets of search space configuration parameters respectively correspond to multiple different working states.

[0366] In one embodiment, as Figure 5i shown, the device 50 further includes a first receiving module 505 and a stopping module 506.

[0367] Among them, the first receiving module 505 is configured to receive a shutdown instruction sent by the base station, and the shutdown instruction instructs to shut down the search space.

[0368] The stopping module 506 is configured to stop monitoring the search space according to the shutdown instruction.

[0369] In one embodiment, as Figure 5j shown, the device 50 further includes a second receiving module 507 and a storage module 508.

[0370] Among them, the second receiving module 507 is configured to receive parameter configuration information sent by a base station, and the parameter configuration information includes the multiple sets of search space configuration parameters.

[0371] The storage module 508 is configured to store the multiple sets of search space configuration parameters included in the parameter configuration information.

[0372] In one embodiment, as Figure 5k shown, the device 50 further includes a third receiving module 509, a second obtaining module 510, and a second monitoring module 511.

[0373] Among them, the third receiving module 509 is configured to receive an initial monitoring instruction sent by a base station, and the initial monitoring instruction includes a parameter identifier of the search space configuration parameter required for the base station to instruct the terminal to initially monitor the search space.

[0374] The second obtaining module 510 is configured to obtain initial search space configuration parameters from the multiple sets of search space configuration parameters according to the parameter identifier included in the initial monitoring instruction.

[0375] The second monitoring module 511 is configured to monitor the search space by using the initial search space configuration parameters.

[0376] An embodiment of the present invention provides a search space parameter configuration and adjustment device. When it is determined that the current state meets a preset condition, the device can obtain search space configuration parameters that need to be switched according to the current state and perform the switching, avoiding the delay caused by adjusting the search space configuration parameters through high-layer signaling sent by the base station, implementing a solution for the terminal to adjust the search space configuration parameters at the best time, improving the efficiency of the terminal to adjust the search space configuration parameters, and reducing the power consumption of the terminal.

[0377] Figure 6a FIG. is a schematic structural diagram of a search space parameter configuration and adjustment device 60 shown according to an exemplary embodiment. The device 60 can be implemented as part or all of an electronic device through software, hardware, or a combination of both. As Figure 6a shown, the search space parameter configuration and adjustment device 60 includes a third obtaining module 601 and a first sending module 602.

[0378] Among them, the third acquisition module 601 is configured to acquire multiple sets of search space configuration parameters corresponding to multiple different states of the terminal respectively. Each set of the search space configuration parameters includes at least one of a search period, the number of time units continuously searched in each search period, the monitoring opportunity in the time unit, the control channel element (CCE) aggregation degree in each monitoring opportunity, the potential transmission position of the physical downlink control channel (PDCCH) under each CCE aggregation degree, and the downlink control information format.

[0379] The first transmission module 602 is configured to send parameter configuration information to the terminal. The parameter configuration information includes the multiple sets of search space configuration parameters, so that the terminal can select the search space configuration parameter corresponding to its current state from the multiple sets of search space configuration parameters for switching.

[0380] In one embodiment, as Figure 6b shown, the third acquisition module 601 includes a fourth acquisition sub-module 6011 and a fifth acquisition sub-module 6012.

[0381] Among them, the fourth acquisition sub-module 6011 is configured to acquire the initial state of the terminal. The initial state includes at least one of the amount of data to be transmitted of the terminal, the type of service to be processed, or the channel quality of the terminal.

[0382] The fifth acquisition sub-module 6012 is configured to acquire the multiple sets of search space configuration parameters according to the initial state of the terminal.

[0383] In one embodiment, as Figure 6c shown, the device 60 further includes a fourth acquisition module 603 and a second transmission module 604.

[0384] Among them, the fourth acquisition module 603 is configured to acquire the initial search space configuration parameters required for the terminal to monitor the search space from the multiple sets of search space configuration parameters according to the initial state of the terminal.

[0385] The second transmission module 604 is configured to send an initial monitoring instruction to the terminal according to the initial search space configuration parameters. The initial monitoring instruction includes the parameter identifier of the initial search space configuration parameters.

[0386] In one embodiment, as Figure 6d shown, the device 60 further includes a fifth acquisition module 605, a second determination module 606, a sixth acquisition module 607, and a first adjustment module 608.

[0387] Among them, a fifth obtaining module 605 is configured to obtain the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal.

[0388] A second determining module 606 is configured to determine whether the current working state of the terminal meets a first preset state.

[0389] A sixth obtaining module 607 is configured to, if the current working state of the terminal meets the first preset state, obtain the search space configuration parameter corresponding to the current working state of the terminal from the multiple sets of search space configuration parameters.

[0390] A first adjusting module 608 is configured to switch the search space configuration parameter of the currently configured search space to the search space configuration parameter corresponding to the current working state of the terminal.

[0391] In one embodiment, as Figure 6e shown, the apparatus 60 further includes a seventh obtaining module 609, a third determining module 610, an eighth obtaining module 611, and a third sending module 612.

[0392] Among them, a seventh obtaining module 609 is configured to obtain the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal.

[0393] A third determining module 610 is configured to determine whether the current working state of the terminal meets a second preset state.

[0394] An eighth obtaining module 611 is configured to, if the current working state of the terminal meets the second preset state, determine the search space configuration parameter corresponding to the current working state of the terminal from the multiple sets of search space configuration parameters.

[0395] A third sending module 612 is configured to send a switching instruction to the terminal according to the search space configuration parameter corresponding to the working state, where the switching instruction includes a parameter identifier of the search space configuration parameter corresponding to the current working state of the terminal.

[0396] In one embodiment, as Figure 6f shown, the third sending module 612 includes a sixth obtaining sub-module 6121, a first writing sub-module 6122, and a first sending sub-module 6123.

[0397] Among them, a sixth obtaining sub-module 6121 is configured to obtain the parameter identifier of the search space configuration parameter corresponding to the working state.

[0398] The first writing sub-module 6122 is configured to write the parameter identifier into a target field of a preset DCI.

[0399] The first sending sub-module 6123 is configured to send the preset DCI to the terminal through the PDCCH.

[0400] In one embodiment, as Figure 6g shown, the third sending module 612 includes a seventh obtaining sub-module 6124 and a second sending sub-module 6125.

[0401] Among them, the seventh obtaining sub-module 6124 is configured to obtain a parameter identifier of a search space configuration parameter corresponding to the working state.

[0402] The second sending sub-module 6125 is configured to send the parameter identifier to the terminal through a target control channel.

[0403] In one embodiment, as Figure 6h shown, the third sending module 612 includes an eighth obtaining sub-module 6126, a second writing sub-module 6127, and a third sending sub-module 6128.

[0404] Among them, the eighth obtaining sub-module 6126 is configured to obtain a parameter identifier of a search space configuration parameter corresponding to the working state.

[0405] The second writing sub-module 6127 is configured to write the parameter identifier into a target field of a preset media access control (MAC) layer message.

[0406] The third sending sub-module 6128 is configured to send the preset MAC layer message to the terminal.

[0407] In one embodiment, as Figure 6i shown, the device 60 further includes a ninth obtaining module 613, a fourth determining module 614, and a fourth sending module 615.

[0408] Among them, the ninth obtaining module 613 is configured to obtain the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal.

[0409] The fourth determining module 614 is configured to determine whether to close the search space according to the current working state of the terminal.

[0410] The fourth sending module 615 is configured to, if it is determined to close the search space, send a closing instruction to the terminal, so that the terminal stops monitoring the search space according to the closing instruction.

[0411] An embodiment of the present invention provides a search space parameter configuration and adjustment device, which can configure multiple sets of search space configuration parameters for a terminal during initialization, so that when the terminal determines that the current state meets a preset condition, it can obtain the search space configuration parameters to be switched according to the current state and perform the switch, avoiding the delay caused by adjusting the search space configuration parameters through high-layer signaling sent by the base station, implementing a solution for the terminal to adjust the search space configuration parameters at the best time, improving the efficiency of the terminal to adjust the search space configuration parameters, and reducing the power consumption of the terminal.

[0412] In an exemplary embodiment, a search space parameter configuration and adjustment device is provided, including:

[0413] A first processor;

[0414] A first memory for storing executable instructions of the first processor;

[0415] Wherein, the first processor is configured to:

[0416] Determine whether the current state meets a preset condition.

[0417] If the current state meets the preset condition, obtain the search space configuration parameters corresponding to the current state from multiple sets of pre-stored search space configuration parameters, and each set of the search space configuration parameters includes at least one of a search period, the number of time units continuously searched in each search period, the monitoring opportunity in the time unit, the control channel element (CCE) aggregation degree in each monitoring opportunity, the potential transmission position of the physical downlink control channel (PDCCH) under each CCE aggregation degree, and the downlink control information format.

[0418] Switch the search space configuration parameters of the currently monitored search space to the search space configuration parameters corresponding to the current state.

[0419] Continue to monitor the search space with the search space configuration parameters corresponding to the current state to obtain the downlink control information (DCI) sent by the base station through the PDCCH.

[0420] In one embodiment, the above first processor may also be configured to: determine whether a handover instruction sent by the base station is currently received, where the handover instruction includes a parameter identifier of the search space configuration parameters indicated by the base station for the terminal to switch; if it is determined that the handover instruction has been received, confirm that the current state has met the preset condition.

[0421] In one embodiment, the first processor may further be configured to: obtain, from multiple sets of pre-stored search space configuration parameters, the search space configuration parameter corresponding to the parameter identifier included in the handover instruction as the search space configuration parameter corresponding to the current state.

[0422] In one embodiment, the first processor may further be configured to: obtain information on a target field of a preset DCI sent by the base station through the PDCCH; determine whether there is a parameter identifier among the multiple parameter identifiers respectively corresponding to the multiple sets of search space configuration parameters that matches the information on the target field of the preset DCI; if there is a parameter identifier among the multiple parameter identifiers that matches the information on the target field of the preset DCI, confirm that a handover instruction sent by the base station has been received.

[0423] In one embodiment, the first processor may further be configured to: obtain in real time information transmitted on a target control channel; determine whether there is a parameter identifier among the multiple parameter identifiers respectively corresponding to the multiple sets of search space configuration parameters that matches the information transmitted on the target control channel; if there is a parameter identifier among the multiple parameter identifiers that matches the information transmitted on the target control channel, confirm that a handover instruction sent by the base station has been received.

[0424] In one embodiment, the first processor may further be configured to: obtain in real time information on a target field of a preset media access control (MAC) layer message; determine whether there is a parameter identifier among the multiple parameter identifiers respectively corresponding to the multiple sets of search space configuration parameters that matches the information on the target field of the preset MAC layer message; if there is a parameter identifier among the multiple parameter identifiers that matches the information on the target field of the preset MAC layer message, confirm that a handover instruction sent by the base station has been received.

[0425] In one embodiment, the first processor may further be configured to: obtain the current working state, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation; determine whether the current working state meets a first preset state; if the current working state meets the first preset state, confirm that the current state has met the preset condition.

[0426] In one embodiment, the first processor may further be configured to: obtain, according to a preset correspondence between the state and the search space configuration parameter, the search space configuration parameter corresponding to the current working state, where the correspondence between the state and the search space configuration parameter describes that the multiple sets of search space configuration parameters respectively correspond to multiple different working states.

[0427] In one embodiment, the first processor may further be configured to: receive a shutdown instruction sent by a base station, where the shutdown instruction instructs to shut down the search space; and stop monitoring the search space according to the shutdown instruction.

[0428] In one embodiment, the first processor may further be configured to: receive parameter configuration information sent by a base station, where the parameter configuration information includes multiple sets of search space configuration parameters; and store the multiple sets of search space configuration parameters included in the parameter configuration information.

[0429] In one embodiment, the first processor may further be configured to: receive an initial monitoring instruction sent by a base station, where the initial monitoring instruction includes a parameter identifier of search space configuration parameters required for the base station to instruct the terminal to initially monitor the search space; obtain initial search space configuration parameters from the multiple sets of search space configuration parameters according to the parameter identifier included in the initial monitoring instruction; and monitor the search space by using the initial search space configuration parameters.

[0430] An embodiment of the present invention provides a search space parameter configuration and adjustment device. When it is determined that the current state meets a preset condition, the device can obtain search space configuration parameters to be switched according to the current state and perform the switching, avoiding the delay caused by adjusting the search space configuration parameters through high-layer signaling sent by the base station, implementing a solution for the terminal to adjust the search space configuration parameters at the best time, improving the efficiency of the terminal to adjust the search space configuration parameters, and reducing the power consumption of the terminal.

[0431] In an exemplary embodiment, a search space parameter configuration and adjustment device is provided, including:

[0432] A second processor;

[0433] A second memory for storing executable instructions of the second processor;

[0434] Wherein, the second processor is configured to:

[0435] Obtain multiple sets of search space configuration parameters corresponding to multiple different states of a terminal respectively, and each set of the search space configuration parameters includes at least one of a search period, the number of time units for continuous search in each search period, a monitoring opportunity in the time unit, the control channel element (CCE) aggregation level in each monitoring opportunity, the potential transmission position of the physical downlink control channel (PDCCH) at each CCE aggregation level, and a downlink control information format.

[0436] Send parameter configuration information to the terminal, where the parameter configuration information includes the multiple sets of search space configuration parameters, so that the terminal can select the search space configuration parameter corresponding to its current state from the multiple sets of search space configuration parameters for switching.

[0437] In one embodiment, the second processor may further be configured to: obtain the initial state of the terminal, where the initial state includes at least one of the amount of data to be transmitted by the terminal, the type of service to be processed, or the channel quality of the terminal; and obtain the multiple sets of search space configuration parameters according to the initial state of the terminal.

[0438] In one embodiment, the second processor may further be configured to: obtain the initial search space configuration parameters required for the terminal to monitor the search space from the multiple sets of search space configuration parameters according to the initial state of the terminal; and send an initial monitoring instruction to the terminal according to the initial search space configuration parameters, where the initial monitoring instruction includes the parameter identifier of the initial search space configuration parameters.

[0439] In one embodiment, the second processor may further be configured to: obtain the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal; determine whether the current working state of the terminal meets a first preset state; if the current working state of the terminal meets the first preset state, obtain the search space configuration parameter corresponding to the current working state of the terminal from the multiple sets of search space configuration parameters; and switch the search space configuration parameter of the currently configured search space to the search space configuration parameter corresponding to the current working state of the terminal.

[0440] In one embodiment, the second processor may further be configured to: obtain the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal; determine whether the current working state of the terminal meets a second preset state; if the current working state of the terminal meets the second preset state, determine the search space configuration parameter corresponding to the current working state of the terminal from the multiple sets of search space configuration parameters; and send a switching instruction to the terminal according to the search space configuration parameter corresponding to the working state, where the switching instruction includes the parameter identifier of the search space configuration parameter corresponding to the current working state of the terminal.

[0441] In one embodiment, the second processor may further be configured to: obtain a parameter identifier of a search space configuration parameter corresponding to the working state; write the parameter identifier into a target field of a preset DCI; and send the preset DCI to the terminal through the PDCCH.

[0442] In one embodiment, the second processor may further be configured to: obtain a parameter identifier of a search space configuration parameter corresponding to the working state; and send the parameter identifier to the terminal through a target control channel.

[0443] In one embodiment, the second processor may further be configured to: obtain a parameter identifier of a search space configuration parameter corresponding to the working state; write the parameter identifier into a target field of a preset medium access control (MAC) layer message; and send the preset MAC layer message to the terminal.

[0444] In one embodiment, the second processor may further be configured to: obtain the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal; determine whether to close the search space according to the current working state of the terminal; and if it is determined to close the search space, send a close instruction to the terminal so that the terminal stops monitoring the search space according to the close instruction.

[0445] An embodiment of the present invention provides a search space parameter configuration and adjustment device. The device can configure multiple sets of search space configuration parameters for a terminal during initialization, so that when the terminal determines that the current state meets a preset condition, the terminal can obtain the search space configuration parameters to be switched according to the current state and perform the switch, avoiding the delay caused by adjusting the search space configuration parameters through high-layer signaling sent by a base station, implementing a solution for the terminal to adjust the search space configuration parameters at the best time, improving the efficiency of the terminal to adjust the search space configuration parameters, and reducing the power consumption of the terminal.

[0446] Regarding the device in the above embodiment, the specific manners in which each module performs operations have been described in detail in the embodiments related to the method, and will not be elaborated herein.

[0447] Figure 7 FIG. is a block diagram of a structure of a search space parameter configuration and adjustment device 70 shown according to an exemplary embodiment. The device 70 is applicable to a terminal device. For example, the device 70 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0448] Device 70 may include one or more of the following components: a processing component 702, a memory 704, a power component 706, a multimedia component 708, an audio component 710, an input / output (I / O) interface 712, a sensor component 714, and a communication component 716.

[0449] The processing component 702 generally controls the overall operation of the device 70, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 702 may include one or more processors 720 to execute instructions to complete all or part of the steps of the above methods. In addition, the processing component 702 may include one or more modules to facilitate the interaction between the processing component 702 and other components. For example, the processing component 702 may include a multimedia module to facilitate the interaction between the multimedia component 708 and the processing component 702.

[0450] The memory 704 is configured to store various types of data to support the operation of the device 70. Examples of such data include instructions for any application or method operating on the device 70, contact data, phone book data, messages, pictures, videos, etc. The memory 704 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, a magnetic disk, or an optical disk.

[0451] The power component 706 provides power to the various components of the device 70. The power component 706 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 70.

[0452] The multimedia component 708 includes a screen that provides an output interface between the device 70 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may not only sense the boundaries of the touch or swipe actions, but also detect the duration and pressure associated with the touch or swipe operations. In some embodiments, the multimedia component 708 includes a front camera and / or a rear camera. When the device 70 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each of the front camera and the rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0453] The audio component 710 is configured to output and / or input audio signals. For example, the audio component 710 includes a microphone (MIC), which is configured to receive external audio signals when the device 70 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals can be further stored in the memory 704 or transmitted via the communication component 716. In some embodiments, the audio component 710 further includes a speaker for outputting audio signals.

[0454] The I / O interface 712 provides an interface between the processing component 702 and a peripheral interface module, and the peripheral interface module can be a keyboard, a click wheel, buttons, etc. These buttons can include, but are not limited to: a home button, a volume button, a start button, and a lock button.

[0455] The sensor component 714 includes one or more sensors for providing an assessment of the state of various aspects of the device 70. For example, the sensor component 714 can detect the on / off state of the device 70, the relative positioning of components, such as the display and keypad of the device 70. The sensor component 714 can also detect a change in the position of the device 70 or a component of the device 70, the presence or absence of user contact with the device 70, the orientation or acceleration / deceleration of the device 70, and the temperature change of the device 70. The sensor component 714 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor component 714 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 714 can further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0456] The communication component 716 is configured to facilitate communication between the device 70 and other devices in a wired or wireless manner. The device 70 can access a wireless network based on communication standards, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 716 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 716 further includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0457] In an exemplary embodiment, the apparatus 70 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above method.

[0458] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 704 including instructions, and the above instructions can be executed by a processor 720 of the apparatus 70 to complete the above method. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0459] Figure 8 FIG. is a block diagram of an apparatus 80 for search space parameter configuration and adjustment according to an exemplary embodiment. For example, the apparatus 80 may be provided as a server for a base station. The apparatus 80 includes a processing component 802, which further includes one or more processors, and memory resources represented by a memory 803 for storing instructions executable by the processing component 802, such as application programs. The application programs stored in the memory 803 may include one or more modules each corresponding to a set of instructions. In addition, the processing component 802 is configured to execute instructions to perform the above method.

[0460] The apparatus 80 may further include a power supply component 806 configured to perform power management of the apparatus 80, a wired or wireless network interface 805 configured to connect the apparatus 80 to a network, and an input / output (I / O) interface 808. The apparatus 80 may operate based on an operating system stored in the memory 803, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.

[0461] A non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by a processor of the apparatus 70, enables the apparatus 70 to perform the above-mentioned search space parameter configuration and adjustment method on the terminal side. The method includes:

[0462] Determine whether the current state meets a preset condition.

[0463] If the current state meets the preset condition, obtain the search space configuration parameter corresponding to the current state from multiple sets of pre-stored search space configuration parameters. Each set of the search space configuration parameters includes at least one of a search period, the number of time units for continuous search in each search period, the monitoring opportunity in the time unit, the control channel element (CCE) aggregation level in each monitoring opportunity, the potential transmission location of the physical downlink control channel (PDCCH) at each CCE aggregation level, and the downlink control information format.

[0464] Switch the search space configuration parameter of the currently monitored search space to the search space configuration parameter corresponding to the current state.

[0465] Continue to monitor the search space with the search space configuration parameter corresponding to the current state to obtain the downlink control information (DCI) sent by the base station through the PDCCH.

[0466] In one embodiment, determining whether the current state meets the preset condition includes: determining whether a handover instruction sent by the base station is currently received, where the handover instruction includes a parameter identifier of the search space configuration parameter indicated by the base station for the terminal to hand over; if it is determined that the handover instruction has been received, confirm that the current state has met the preset condition.

[0467] In one embodiment, obtaining the search space configuration parameter corresponding to the current state from multiple sets of pre-stored search space configuration parameters includes: obtaining the search space configuration parameter corresponding to the parameter identifier included in the handover instruction from multiple sets of pre-stored search space configuration parameters as the search space configuration parameter corresponding to the current state.

[0468] In one embodiment, determining whether a handover instruction sent by the base station is currently received includes: obtaining the information of the target field of the preset DCI sent by the base station through the PDCCH; determining whether there is a parameter identifier in the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters that matches the information of the target field of the preset DCI; if there is a parameter identifier in the multiple parameter identifiers that matches the information of the target field of the preset DCI, confirm that the handover instruction sent by the base station has been received.

[0469] In one embodiment, determining whether a handover instruction sent by the base station is currently received includes: obtaining in real time the information transmitted by the target control channel; determining whether there is a parameter identifier in the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters that matches the information transmitted by the target control channel; if there is a parameter identifier in the multiple parameter identifiers that matches the information transmitted by the target control channel, confirm that the handover instruction sent by the base station has been received.

[0470] In one embodiment, determining whether a handover instruction sent by a base station is currently received includes: obtaining information of a target field of a preset Media Access Control (MAC) layer message in real time; determining whether there is a parameter identifier among a plurality of parameter identifiers corresponding to the multiple sets of search space configuration parameters that matches the information of the target field of the preset MAC layer message; if there is a parameter identifier among the plurality of parameter identifiers that matches the information of the target field of the preset MAC layer message, confirming that the handover instruction sent by the base station is received.

[0471] In one embodiment, determining whether the current state meets a preset condition includes: obtaining the current working state, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and Physical Downlink Control Channel (PDCCH) detection situation; determining whether the current working state meets a first preset state; if the current working state meets the first preset state, confirming that the current state has met the preset condition.

[0472] In one embodiment, obtaining a search space configuration parameter corresponding to the current state from multiple sets of pre-stored search space configuration parameters includes: obtaining a search space configuration parameter corresponding to the current working state according to a preset correspondence between the state and the search space configuration parameter, where the correspondence between the state and the search space configuration parameter describes that the multiple sets of search space configuration parameters respectively correspond to multiple different working states.

[0473] In one embodiment, the method further includes: receiving a shutdown instruction sent by the base station, where the shutdown instruction instructs to shut down the search space; stopping monitoring the search space according to the shutdown instruction.

[0474] In one embodiment, the method further includes: receiving parameter configuration information sent by the base station, where the parameter configuration information includes the multiple sets of search space configuration parameters; storing the multiple sets of search space configuration parameters included in the parameter configuration information.

[0475] In one embodiment, the method further includes: receiving an initial monitoring instruction sent by the base station, where the initial monitoring instruction includes a parameter identifier of a search space configuration parameter required for the base station to instruct the terminal to initially monitor the search space; obtaining an initial search space configuration parameter from the multiple sets of search space configuration parameters according to the parameter identifier included in the initial monitoring instruction; monitoring the search space using the initial search space configuration parameter.

[0476] A non-transitory computer-readable storage medium, when instructions in the storage medium are executed by a processor of device 80, enables device 80 to execute the above-mentioned search space parameter configuration and adjustment method on the base station side, and the method includes:

[0477] Obtain multiple sets of search space configuration parameters corresponding to multiple different states of the terminal respectively. Each set of the search space configuration parameters includes at least one of a search period, the number of time units continuously searched in each search period, the monitoring opportunity in the time unit, the control channel element (CCE) aggregation level in each monitoring opportunity, the potential transmission position of the physical downlink control channel (PDCCH) at each CCE aggregation level, and the downlink control information format.

[0478] Send parameter configuration information to the terminal. The parameter configuration information includes the multiple sets of search space configuration parameters, so that the terminal can select the search space configuration parameter corresponding to its current state from the multiple sets of search space configuration parameters for switching.

[0479] In one embodiment, obtain the initial state of the terminal. The initial state includes at least one of the amount of data to be transmitted by the terminal, the type of service to be processed, or the channel quality of the terminal; according to the initial state of the terminal, obtain the multiple sets of search space configuration parameters.

[0480] In one embodiment, the method further includes: according to the initial state of the terminal, obtain the initial search space configuration parameter required for the terminal to monitor the search space from the multiple sets of search space configuration parameters; according to the initial search space configuration parameter, send an initial monitoring instruction to the terminal. The initial monitoring instruction includes the parameter identifier of the initial search space configuration parameter.

[0481] In one embodiment, the method further includes: obtain the current working state of the terminal. The working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal; determine whether the current working state of the terminal meets a first preset state; if the current working state of the terminal meets the first preset state, obtain the search space configuration parameter corresponding to the current working state of the terminal from the multiple sets of search space configuration parameters; switch the search space configuration parameter of the currently configured search space to the search space configuration parameter corresponding to the current working state of the terminal.

[0482] In one embodiment, the method further includes: obtaining the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal; determining whether the current working state of the terminal meets a second preset state; if the current working state of the terminal meets the second preset state, determining, from the multiple sets of search space configuration parameters, the search space configuration parameter corresponding to the current working state of the terminal; and sending a handover instruction to the terminal according to the search space configuration parameter corresponding to the working state, where the handover instruction includes a parameter identifier of the search space configuration parameter corresponding to the current working state of the terminal.

[0483] In one embodiment, the sending a handover instruction to the terminal according to the search space configuration parameter corresponding to the working state includes: obtaining a parameter identifier of the search space configuration parameter corresponding to the working state; writing the parameter identifier into a target field of a preset DCI; and sending the preset DCI to the terminal through the PDCCH.

[0484] In one embodiment, the sending a handover instruction to the terminal according to the search space configuration parameter corresponding to the working state includes: obtaining a parameter identifier of the search space configuration parameter corresponding to the working state; and sending the parameter identifier to the terminal through a target control channel.

[0485] In one embodiment, the sending a handover instruction to the terminal according to the search space configuration parameter corresponding to the working state includes: obtaining a parameter identifier of the search space configuration parameter corresponding to the working state; writing the parameter identifier into a target field of a preset medium access control (MAC) layer message; and sending the preset MAC layer message to the terminal.

[0486] In one embodiment, the method further includes: obtaining the current working state of the terminal, where the working state includes at least one of the current service type, service load, channel quality, transmission / scheduling mode, and PDCCH detection situation of the terminal; determining whether to close the search space according to the current working state of the terminal; and if it is determined to close the search space, sending a close instruction to the terminal so that the terminal stops monitoring the search space according to the close instruction.

[0487] Other embodiments of the present invention will be readily apparent to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the invention following the general principles of the invention and including known or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are pointed out by the following claims.

[0488] It should be understood that the present invention is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A method for configuring and adjusting search space parameters, characterized in that Applied to a terminal, including: In response to receiving a handover instruction sent by a base station, which includes a parameter identifier of search space configuration parameters corresponding to the current working state of the terminal and indicating that the base station instructs the terminal to hand over, obtain the search space configuration parameters corresponding to the current working state from multiple sets of pre-stored search space configuration parameters. Each set of the search space configuration parameters includes at least one of the following parameters: search period, number of time units for continuous search in each search period, monitoring opportunity in the time unit, CCE aggregation level in each monitoring opportunity, potential transmission position of the physical downlink control channel PDCCH under each CCE aggregation level, and downlink control information format; Switch the search space configuration parameters of the currently monitored search space to the search space configuration parameters to be switched to; Continue to monitor the search space using the search space configuration parameters corresponding to the current working state to obtain downlink control information DCI sent by the base station through the PDCCH; The response to receiving the handover instruction sent by the base station, which includes the parameter identifier of the search space configuration parameters corresponding to the current working state of the terminal and indicating that the base station instructs the terminal to hand over, includes: Obtain the information of the target field of the preset DCI sent by the base station through the PDCCH; Determine whether there is a parameter identifier in the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters that matches the information of the target field of the preset DCI; If there is a parameter identifier in the multiple parameter identifiers that matches the information of the target field of the preset DCI, confirm that the handover instruction sent by the base station is received; Wherein, the multiple sets of pre-stored search space configuration parameters are configured through the high-layer signaling of the base station.

2. The method according to claim 1, wherein The obtaining of the search space configuration parameters corresponding to the current working state from the multiple sets of pre-stored search space configuration parameters includes: Obtain the search space configuration parameters corresponding to the parameter identifier included in the handover instruction from the multiple sets of pre-stored search space configuration parameters as the search space configuration parameters corresponding to the current working state.

3. The method according to claim 1, characterized in that, The method further includes: Receive a shutdown instruction sent by the base station, where the shutdown instruction instructs to shut down the search space; Stop monitoring the search space according to the shutdown instruction.

4. The method according to any one of claims 1, wherein The method further includes: Receive parameter configuration information sent by the base station, where the parameter configuration information includes the multiple sets of search space configuration parameters; Store the multiple sets of search space configuration parameters included in the parameter configuration information.

5. The method according to claim 4, characterized in that The method further includes: Receive an initial monitoring instruction sent by the base station, where the initial monitoring instruction includes the parameter identifier of the search space configuration parameters required for the base station to instruct the terminal to initially monitor the search space; Obtain initial search space configuration parameters from the multiple sets of search space configuration parameters according to the parameter identifier included in the initial monitoring instruction; Monitor the search space using the initial search space configuration parameters.

6. A method for configuring and adjusting search space parameters, characterized in that, Applied to a base station, including: Send a handover command including a parameter identifier of the search space configuration parameter corresponding to the current working state of the terminal and indicating the terminal to perform handover by the base station to the terminal, so that the terminal obtains the search space configuration parameter corresponding to the current working state from multiple sets of pre-stored search space configuration parameters; Each set of the search space configuration parameters includes at least one of the following parameters: search period, number of time units continuously searched in each search period, monitoring opportunity in the time unit, control channel element (CCE) aggregation level in each monitoring opportunity, potential transmission position of the physical downlink control channel (PDCCH) at each CCE aggregation level, and downlink control information format; The sending the handover command including the parameter identifier of the search space configuration parameter corresponding to the current working state of the terminal and indicating the terminal to perform handover by the base station to the terminal includes: information in a target field of a preset downlink control information (DCI) sent through the PDCCH; Determine whether there is a parameter identifier in the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters that matches the information in the target field of the preset DCI; If there is a parameter identifier in the multiple parameter identifiers that matches the information in the target field of the preset DCI, confirm that the handover command sent by the base station is received; Configure the multiple sets of pre-stored search space configuration parameters for the terminal through higher layer signaling.

7. The method according to claim 6, wherein The method further includes: Send a shutdown command to the terminal, where the shutdown command instructs to shut down the search space, so that the terminal stops monitoring the search space according to the shutdown command.

8. A search space parameter configuration and adjustment device, characterized in that Includes: A first acquisition module, configured to, in response to receiving a handover command including a parameter identifier of the search space configuration parameter corresponding to the current working state of the terminal and indicating the terminal to perform handover by the base station, obtain the search space configuration parameter corresponding to the current working state from multiple sets of pre-stored search space configuration parameters, where each set of the search space configuration parameters includes at least one of the following parameters: search period, number of time units continuously searched in each search period, monitoring opportunity in the time unit, CCE aggregation level in each monitoring opportunity, potential transmission position of the PDCCH at each CCE aggregation level, and downlink control information format; Switch the search space configuration parameter of the currently monitored search space to the search space configuration parameter to be switched to; Continue to monitor the search space by using the search space configuration parameter corresponding to the current working state to obtain the downlink control information (DCI) sent by the base station through the PDCCH; The responding to receiving the handover command including the parameter identifier of the search space configuration parameter corresponding to the current working state of the terminal and indicating the terminal to perform handover by the base station includes: Obtain the information in the target field of the preset DCI sent by the base station through the PDCCH; Determine whether there is a parameter identifier in the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters that matches the information in the target field of the preset DCI; If there is a parameter identifier in the multiple parameter identifiers that matches the information in the target field of the preset DCI, confirm that the handover instruction sent by the base station is received; Among them, the multiple sets of pre-stored search space configuration parameters are configured through the high-layer signaling of the base station.

9. A search space parameter configuration and adjustment device, characterized in that Including: A first sending module, configured to send a handover instruction including a parameter identifier of a search space configuration parameter corresponding to the base station instructing the terminal to handover and corresponding to the current working state of the terminal to the terminal, so that the terminal obtains the search space configuration parameter corresponding to the current working state from the multiple sets of pre-stored search space configuration parameters; Each set of the search space configuration parameters includes at least one of the following parameters: search period, number of time units continuously searched in each search period, monitoring occasion in the time unit, CCE aggregation degree of the control channel element in each monitoring occasion, potential transmission position of the physical downlink control channel PDCCH under each CCE aggregation degree, and downlink control information format; The sending of the handover instruction including the parameter identifier of the search space configuration parameter corresponding to the base station instructing the terminal to handover and corresponding to the current working state of the terminal to the terminal includes: information in the target field of the preset DCI sent through the PDCCH; Determine whether there is a parameter identifier in the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters that matches the information in the target field of the preset DCI; If there is a parameter identifier in the multiple parameter identifiers that matches the information in the target field of the preset DCI, confirm that the handover instruction sent by the base station is received; Configure the multiple sets of pre-stored search space configuration parameters for the terminal through high-layer signaling.

10. A search space parameter configuration and adjustment device, characterized in that, Including: A first processor; A first memory for storing executable instructions of the first processor; Among them, the first processor is configured to: in response to receiving a handover instruction including a parameter identifier of a search space configuration parameter corresponding to the base station instructing the terminal to handover and corresponding to the current working state of the terminal, obtain the search space configuration parameter corresponding to the current working state from the multiple sets of pre-stored search space configuration parameters, and each set of the search space configuration parameters includes at least one of the following parameters: search period, number of time units continuously searched in each search period, monitoring occasion in the time unit, CCE aggregation degree of the control channel element in each monitoring occasion, potential transmission position of the physical downlink control channel PDCCH under each CCE aggregation degree, and downlink control information format; Switch the search space configuration parameter of the currently monitored search space to the search space configuration parameter to be switched to; Continue to monitor the search space using the search space configuration parameter corresponding to the current working state to obtain the downlink control information DCI sent by the base station through the PDCCH; Obtaining the search space configuration parameter corresponding to the current working state from multiple sets of pre-stored search space configuration parameters includes: The response to receiving a handover instruction including a parameter identifier of the search space configuration parameter sent by the base station, where the base station indicates the handover of the terminal and the search space configuration parameter corresponds to the current working state of the terminal, includes: Obtaining information of a target field of a preset DCI sent by the base station through the PDCCH; Determining whether there is a parameter identifier in the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters that matches the information of the target field of the preset DCI; If there is a parameter identifier in the multiple parameter identifiers that matches the information of the target field of the preset DCI, confirming that the handover instruction sent by the base station is received; Among them, the multiple sets of pre-stored search space configuration parameters are configured through high-layer signaling of the base station.

11. A search space parameter configuration and adjustment device, characterized in that Including: A second processor; A second memory for storing executable instructions of the second processor; Among them, the second processor is configured to: Send a handover instruction including a parameter identifier of the search space configuration parameter sent by the base station, where the base station indicates the handover of the terminal and the search space configuration parameter corresponds to the current working state of the terminal, so that the terminal obtains the search space configuration parameter corresponding to the current working state from multiple sets of pre-stored search space configuration parameters; Each set of the search space configuration parameters includes at least one of the following parameters: search period, the number of time units continuously searched in each search period, monitoring occasions in the time units, the control channel element (CCE) aggregation level in each monitoring occasion, the potential transmission position of the physical downlink control channel (PDCCH) under each CCE aggregation level, and the downlink control information format; The sending of the handover instruction including a parameter identifier of the search space configuration parameter sent by the base station, where the base station indicates the handover of the terminal and the search space configuration parameter corresponds to the current working state of the terminal, includes: information of a target field of a preset DCI sent through the PDCCH; Determining whether there is a parameter identifier in the multiple parameter identifiers corresponding to the multiple sets of search space configuration parameters that matches the information of the target field of the preset DCI; If there is a parameter identifier in the multiple parameter identifiers that matches the information of the target field of the preset DCI, confirming that the handover instruction sent by the base station is received; Configuring the multiple sets of pre-stored search space configuration parameters for the terminal through high-layer signaling.

12. A computer-readable storage medium having computer instructions stored thereon, characterized in that, When the instruction is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.

13. A computer-readable storage medium having computer instructions stored thereon, characterized in that, When the instruction is executed by a processor, it implements the steps of the method according to any one of claims 6 - 7.

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