Information processing method, information sending method and device

Abstract

The embodiment of the invention provides an information processing method and device and an information sending method and device. The information processing method comprises: a terminal device receiving a second synchronization signal block (SSB) of a second cell sent by a network side device; performing downlink receiving on a first cell reference signal according to the second synchronization signal block or determining a measurement result of the first cell; wherein a first synchronization signal block of the first cell and a second synchronization signal block of the second cell are in a quasi co-location (QCL) relationship.

Description

Information processing method, information sending method and device Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies. Background Art

[0002] Because NR (New Radio) base stations operate within a wide bandwidth (e.g., 100MHz), require a large number of ports (64T / 64R), and a shorter TTI (Transmission Time Interval) (e.g., 1ms), the energy consumption of baseband processing, digital front-end, and other functions in NR base stations is significantly higher than that of LTE (Long Term Evolution) base stations. Furthermore, NR's FR2 (Frequency Range 2) operating frequency (>6GHz) is higher. Signal path loss increases at higher frequencies, so the design principle of NR is to use narrower beams to achieve longer signal transmission distances. Consequently, the number of antenna elements used for analog beamforming in NR base stations will increase significantly, leading to an increase in the number of radio frequency units (RFUs) and RF channels for transmitting and receiving signals. Each RF channel has a power amplifier (PA), and PA energy consumption accounts for approximately 80% of the total base station energy consumption. As the number of PAs increases, base station energy consumption also increases. Currently, an AAU (Active Antenna Unit) in the FR1 (Frequency Range 1) band typically uses 192 antenna elements, supporting 64 channels, significantly larger than the maximum of 8 channels in LTE.

[0003] According to operator statistics, the average energy consumption of an NR base station is more than three times that of an LTE base station. Nearly half of the cost of deploying 5G (fifth generation) networks for operators is electricity costs. More importantly, even when there is no business, the energy consumption of NR base stations is still very high, because even when there is no business, the base station still needs to send public signals such as SSB (synchronization signal block), SIB1 (first system information block) and SI (system information), which greatly reduces the energy efficiency of NR base stations. Energy saving in NR networks is an urgent problem to be solved.

[0004] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art.

[0005] Summary of the Invention

[0006] 3GPP Rel-15 / Rel-16 (3rd Generation Partnership Project Release 15 / Release 16) supports intra-band carrier aggregation (CA) scenarios, where the secondary cell (SCell) of a terminal device can not send synchronization signal blocks (SSBs). The terminal device obtains downlink synchronization of the SCell using the SSBs sent by the special cell (SpCell). At the same site, at least one cell must send SSBs, and only the cell sending SSBs can be used as the SpCell for the terminal device.

[0007] The inventors discovered that in the prior art, at least one cell at the same site must transmit SSB, and the serving cell (at least the SpCell) of the terminal device must also transmit SSB. This results in significant energy consumption even when there is no traffic at the site, hindering network energy conservation.

[0008] In addition, for the sake of network energy saving, if all service cells of the terminal device stop sending SSB, or extend the transmission period of SSB, it means that the terminal device loses the downlink synchronization and downlink channel estimation signal of the service cell, that is, the terminal device cannot perform measurements based on the SSB of the service cell. Therefore, the service cell of the terminal device cannot serve the terminal device. The terminal device originally connected to the service cell must switch to the adjacent cell, and the terminal device originally residing in the service cell will perform cell reselection to reside in the adjacent cell. Figure 1 is a schematic diagram of the network energy saving solution. As shown in Figure 1, for the sake of network energy saving, for the SpCell of the terminal device, the network equipment can dynamically activate and deactivate the SpCell according to the traffic volume, measurement report and other information of the NR cell and its adjacent cells. When the cell is deactivated, the synchronization signal block, system information, etc. of the cell are stopped from being sent, and the uplink signal sent by the terminal device is stopped from being received. In this way, the energy consumption of the SpCell can be saved when the traffic volume is low.

[0009] In this way, when a cell enters the energy-saving state, the terminal device will switch to the adjacent cell and inform the adjacent NR network device or LTE network device that the NR cell has entered the energy-saving state. The adjacent NR / LTE network device will assume the coverage area and traffic volume of the NR cell. Afterwards, the adjacent NR / LTE network device will determine whether to request the NR cell that has entered the energy-saving state to resume normal operation based on its own traffic volume, measurement report and other information. For example, when its own traffic volume reaches a certain threshold, it triggers the NR cell that requested to enter the energy-saving state to resume normal operation. When the NR cell resumes normal operation, some terminal devices that previously switched to the adjacent NR / LTE cell may switch back to the NR cell.

[0010] The inventors discovered that in the above solution, when an NR cell dynamically enters the energy-saving state multiple times, terminal devices will frequently switch out of the NR cell or frequently reselect cells, which will affect the user experience. In addition, the migration of terminal devices from the energy-saving cell to the adjacent cell will inevitably increase the load level of the adjacent cell, affecting the service quality of the terminal devices in the adjacent cell.

[0011] In response to at least one of the above problems, embodiments of the present application provide an information processing method, an information sending method, and an apparatus.

[0012] According to one aspect of an embodiment of the present application, there is provided an information sending apparatus, configured on a network-side device, the apparatus comprising:

[0013] a second sending unit, which stops sending the first synchronization signal block of the first cell that should be sent to the terminal device; and sends or stops sending the second synchronization signal block of the second cell that should be sent to the terminal device;

[0014] The first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-location (QCL) relationship.

[0015] According to another aspect of an embodiment of the present application, there is provided an information processing apparatus configured in a terminal device, the apparatus comprising:

[0016] a first receiving unit configured to receive a second synchronization signal block (SSB) of a second cell sent by a network-side device;

[0017] a first processing unit, configured to perform downlink reception of a first cell reference signal or determine a measurement result of the first cell according to the second synchronization signal block;

[0018] The first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-location (QCL) relationship.

[0019] According to another aspect of an embodiment of the present application, there is provided an information sending apparatus, configured in a terminal device, the apparatus comprising:

[0020] A first sending unit, which sends a first wake-up signal to a network side device when the terminal device initiates random access in the first cell or performs RLM / BFD / RRM measurement based on the first synchronization signal block of the first cell or performs cell selection or reselection measurement on the first cell, and the terminal device cannot successfully receive or measure the first synchronization signal block. The first wake-up signal is used to instruct the network device to resume sending the first synchronization signal block of the first cell.

[0021] One of the beneficial effects of the embodiments of the present application is that the terminal device can downlink receive the reference signal of the energy-saving cell or determine the measurement result of the energy-saving cell based on the synchronization signal block of other cells, and the terminal device can perform random access, RLM / BFD / RRM measurement based on CSI-RS or SSB, cell selection or reselection measurement in the energy-saving cell. In this way, the terminal device does not have to switch to other cells, and the terminal device originally residing in the energy-saving cell does not have to reselect the cell. It can avoid migrating the terminal device in the energy-saving state cell to the adjacent cell to cause service interruption and increase the load level of the adjacent cell, and ensure that the user experience is not reduced when the cell enters the energy-saving state.

[0022] One of the beneficial effects of the embodiments of the present application is that the terminal device can send a wake-up signal (Wake-Up signal) to enable the energy-saving cell that stopped sending SSB to resume sending SSB, and perform random access, RLM / BFD / RRM measurement based on CSI-RS or SSB, cell selection or reselection measurement, etc. in the energy-saving cell based on the resumed SSB. In this way, the terminal device does not have to switch to other cells, and the terminal device originally residing in the energy-saving cell does not have to reselect the cell, which can avoid migrating the terminal device in the energy-saving state cell to the adjacent cell to cause service interruption and increase the load level of the adjacent cell.

[0023] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents.

[0024] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0025] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.

[0027] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0028] Figure 2 is a schematic diagram of a distributed network energy-saving solution;

[0029] FIG3 is a schematic diagram of an information processing method according to an embodiment of the present application;

[0030] FIG4 is another schematic diagram of the information processing method according to an embodiment of the present application;

[0031] FIG5 is a schematic diagram of a method for sending information according to an embodiment of the present application;

[0032] FIG6 is another schematic diagram of the information sending method according to an embodiment of the present application;

[0033] FIG7 is a schematic diagram of an information sending device according to an embodiment of the present application;

[0034] FIG8 is another schematic diagram of the information processing device according to an embodiment of the present application;

[0035] FIG9 is another schematic diagram of the information sending device according to an embodiment of the present application;

[0036] FIG10 is a schematic diagram of a network device according to an embodiment of the present application;

[0037] FIG11 is a schematic diagram of a terminal device according to an embodiment of the present application. DETAILED DESCRIPTION

[0038] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which illustrate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0039] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0040] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.

[0041] In the embodiments of the present application, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0042] Furthermore, communication between devices in the communication system may be carried out according to communication protocols of any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), etc., and / or other communication protocols currently known or to be developed in the future.

[0043] In the embodiments of the present application, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to the communication network and provides services to the terminal device. Network devices may include, but are not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.

[0044] Base stations may include, but are not limited to, Node B (NB), evolved Node B (eNodeB or eNB), and 5G base stations (gNB), among others. They may also include remote radio heads (RRHs), remote radio units (RRUs), relays or low-power nodes (e.g., femeto, pico, etc.), IAB (Integrated Access and Backhaul) nodes, IAB-DUs, or IAB-donors. The term "base station" may include some or all of these functions, and each base station may provide communication coverage for a specific geographic area. The term "cell" may refer to a base station and / or its coverage area, depending on the context in which the term is used. The terms "cell" and "base station" may be used interchangeably to avoid confusion.

[0045] In the embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. A terminal device can be fixed or mobile and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), an IAB-MT, a station, and so on.

[0046] Terminal devices may include, but are not limited to, the following devices: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smartphones, smart watches, digital cameras, etc.

[0047] For another example, in scenarios such as the Internet of Things (IoT), the terminal device can also be a machine or device for monitoring or measurement, including but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device-to-device (D2D) terminal, machine-to-machine (M2M) terminal, and so on.

[0048] In addition, the term "network side" or "network device side" refers to one side of the network, which can be a base station or one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the user or terminal side, which can be a UE or one or more terminal devices as described above. Unless otherwise specified herein, "device" can refer to either network equipment or terminal equipment.

[0049] In the following description, the terms "uplink control signal" and "uplink control information (UCI)" or "physical uplink control channel (PUCCH)" are interchangeable, and the terms "uplink data signal" and "uplink data information" or "physical uplink shared channel (PUSCH)" are interchangeable to avoid confusion.

[0050] The terms "downlink control signal" and "downlink control information (DCI)" or "physical downlink control channel (PDCCH)" are interchangeable, and the terms "downlink data signal" and "downlink data information" or "physical downlink shared channel (PDSCH)" are interchangeable.

[0051] In addition, sending or receiving PUSCH can be understood as sending or receiving uplink data carried by PUSCH, sending or receiving PUCCH can be understood as sending or receiving uplink information carried by PUCCH, and sending or receiving PRACH can be understood as sending or receiving preamble carried by PRACH; uplink signals can include uplink data signals and / or uplink control signals, etc., and can also be referred to as uplink transmission (UL transmission) or uplink information or uplink channels. Sending uplink transmission on uplink resources can be understood as sending the uplink transmission using the uplink resources. Similarly, downlink data / signals / channels / information can be understood accordingly.

[0052] In the embodiments of the present application, the high-layer signaling may be, for example, radio resource control (RRC) signaling; for example, an RRC message, including, for example, an MIB, system information, or a dedicated RRC message; or an RRC information element (RRC IE). The high-layer signaling may also be, for example, MAC (Medium Access Control) signaling; or a MAC control element (MAC CE). However, the present application is not limited thereto.

[0053] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.

[0054] FIG2 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a situation using a terminal device and a network device as an example. As shown in FIG2 , a communication system 200 may include a network device 201 and terminal devices 202 and 203. For simplicity, FIG2 illustrates only two terminal devices and one network device as an example, but the embodiments of the present application are not limited thereto.

[0055] In the embodiment of the present application, existing services or future services can be transmitted between the network device 201 and the terminal devices 202 and 203. For example, these services may include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0056] Among them, the terminal device 202 can send data to the network device 201, for example, using an authorized or unauthorized transmission mode. The network device 201 can receive data sent by one or more terminal devices 202 and feedback information to the terminal device 202, such as confirmation ACK / non-confirmation NACK information. The terminal device 202 can confirm the end of the transmission process, or can continue new data transmission, or can retransmit the data based on the feedback information.

[0057] It is worth noting that FIG2 shows that both terminal devices 202 and 203 are within the coverage range of network device 201, but the present application is not limited thereto. Both terminal devices 202 and 203 may not be within the coverage range of network device 201, or one terminal device 202 may be within the coverage range of network device 201 while the other terminal device 203 is outside the coverage range of network device 201.

[0058] The embodiments of the present application are described below with reference to the accompanying drawings and specific implementation methods.

[0059] Embodiments of the first aspect

[0060] An embodiment of the present application provides an information processing method, which is described from the perspective of a terminal device.

[0061] FIG3 is a schematic diagram of an information processing method according to an embodiment of the present application, which is applied to a terminal device. As shown in FIG3 , the method includes:

[0062] 301. The terminal device receives a second synchronization signal block (SSB) of a second cell sent by a network side device.

[0063] 302. The terminal device receives a downlink reference signal of the first cell or determines a measurement result of the first cell according to the second synchronization signal block;

[0064] The first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-location (QCL) relationship.

[0065] It is worth noting that FIG3 above only schematically illustrates an embodiment of the present application, and the present application is not limited thereto. For example, other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of FIG3 above.

[0066] In some embodiments, when there is no business, the network side may stop sending the synchronization signal blocks of one or more service cells of the terminal device, or extend the sending period of the synchronization signal blocks (for example, from 20ms to 320ms). The following stopping sending the synchronization blocks may also refer to extending the period of the synchronization signal blocks. The synchronization signal block of the first cell (or the first carrier) is referred to as the first synchronization signal block. The first cell is the service cell that stops sending the synchronization signal block. The first cell may be a special cell of the terminal device (for example, the primary cell PCell or the primary and secondary cell PSCell), or a non-special cell (for example, SCell). For example, the first cell is a special cell (SpCell) of the terminal device when it is in a connected state, or a cell selected or reselected by the terminal device when it is in an idle or deactivated state. The embodiment of the present application is not limited to this. Thus, the energy consumption overhead of the network side can be saved. Therefore, the first cell may also be called an energy-saving cell (or SSB-less cell). The synchronization signal block (also called synchronization signal and PBCH block, SSB for short) may include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and / or a physical broadcast channel (PBCH).

[0067] In some embodiments, although the first cell stops sending SSB, other cells at the same site as the first cell can send SSB, that is, the second cell (or second carrier) can be other cells that send synchronization signal blocks at the same site as the first cell. The synchronization signal block of the second cell is called the second synchronization signal block. The second cell can be a special cell of the terminal device (for example, the primary cell PCell or the primary and secondary cell PSCell) or a non-special cell (for example, SCell). The second cell can also be called a reference cell or an anchor cell. The embodiments of the present application are not limited to this. That is, in 301, the terminal device receives the second synchronization signal block of the second cell sent by the network side device.

[0068] In some embodiments, when the terminal device fails to successfully receive the first synchronization signal block sent by the network-side device (the first SSB of the first cell stops sending), for example, when the sending period of the first synchronization signal block exceeds a preset threshold, the second SSB sent on the second cell can provide downlink channel estimation information for the first cell, or in other words, the terminal device can obtain the downlink channel estimation information of the first cell based on the SSB of the second cell at the same site, and the terminal device performs downlink reception of the first cell reference signal or determines the measurement result of the first cell based on the second SSB, and the terminal device can perform random access, radio link monitoring (RLM) based on CSI-RS or SSB, beam failure detection (BFD), radio resource management (RRM) measurement, cell selection or reselection measurement, etc. in the first cell. In this way, the terminal device does not need to switch to other cells, and the terminal device originally residing in the first cell does not need to reselect the cell, which can avoid the migration of the terminal device in the energy-saving state cell to the adjacent cell, causing service interruption and increasing the load level of the adjacent cell, and ensure that the user experience is not reduced when the cell enters the energy-saving state.

[0069] In some embodiments, the first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-location QCL relationship, and the types of the QCL relationship include QCL type C and QCL type D. In particular, the first synchronization signal block and the second synchronization signal block in a quasi-co-location relationship have the same index. In other words, the first SSB and the second SSB with the same index are in a quasi-co-location relationship, and the quasi-co-location relationship can be indicated by the second indication information, and the second indication information will be described later. In addition, if the number of second synchronization signal blocks sent is less than the number of first synchronization signal blocks that should be sent, the terminal cannot determine the measurement result of the first synchronization signal block based on the second synchronization signal block. Therefore, within one synchronization signal block period, the number of second synchronization signal blocks sent is not less than the number of first synchronization signal blocks that should be sent, and the subcarrier spacing, period and / or transmission power of the first synchronization signal block of the first cell and the second synchronization signal block of the second cell may be the same or different. The network side device may send SSB configuration information (such as the configuration information of the first SSB and the configuration information of the second SSB) to the terminal side in advance, wherein the configuration information may be expressed in the abstract syntax notation ASN.1 data format as follows:

[0070]

[0071]

[0072] For example, the position of the SSB indicated by the ssb-PositionsInBurst information element of the second cell is not less than the position of the SSB indicated by the information element of the first cell, but the period ssb-periodicityServingCell, the subcarrier spacing ssbSubcarrierSpacing, and the transmission power ss-PBCH-BlockPower may be the same or different.

[0073] In some embodiments, the network side device may instruct the network side device to stop sending the first SSB that should have been sent through first indication information. The first indication information may be represented by one or more bits. The first indication information is also used to indicate the index of the first synchronization signal that should have been sent and that has stopped being sent. The network device of the first cell may send the first indication information before stopping sending the first SSB. The first indication information may be carried by system information or a dedicated RRC message.

[0074] For example, the first indication information may be a new information element in the system information or dedicated RRC message. When the new information element is not included in the system information or dedicated RRC signaling, it indicates that all SSBs of the first cell are sent normally. When the new information element is included in the system information or dedicated RRC signaling, it indicates that the first SSB of the first cell that should be sent stops sending. The value of the information element is also used to indicate the index of the first SSB that should be sent and stops sending. For example, the information element can be represented by a bitmap, and each bit of the bitmap corresponds to the index of an SSB. If the value of the bit is 1, it indicates that the SSB of the index is sent normally, and the value of the bit is 0, it indicates that the SSB of the index stops sending, and vice versa. Alternatively, the information element can also use an N-bit value to indicate the index value (SSB index) of the SSB that should be sent and stops sending. The embodiments of the present application are not limited to this.

[0075] In some embodiments, the network side device can indicate to the terminal device that it can downlink receive the first cell reference signal or determine the measurement result of the first cell through the second synchronization signal block by sending a second indication information. When the terminal device receives the second indication information, it indicates that the terminal device can downlink receive the first cell reference signal or determine the measurement result of the first cell through the second synchronization signal block. The second indication information sent can indicate the identification information of the second cell. In other words, when the terminal device receives the second indication information indicating the identification information of the second cell, the terminal device can downlink receive the first cell reference signal or determine the measurement result of the first cell through the second synchronization signal block. If the terminal device does not receive the second indication information, it cannot downlink receive the first cell reference signal or determine the measurement result of the first cell through the second synchronization signal block. In this way, if the terminal device needs to downlink receive the first cell reference signal or determine the measurement result of the first cell, it needs to send a wake-up signal to resume sending the first SSB. The relevant embodiments of the wake-up signal will be described in the embodiments of the second aspect.

[0076] In some embodiments, the second indication information can also be used to indicate that the first synchronization signal block and the second synchronization signal block are in a quasi-co-location relationship, so that the terminal device can downlink receive the first cell reference signal or determine the measurement result of the first cell through the second synchronization signal block.

[0077] In some embodiments, the network device of the first cell may send second indication information before stopping sending the first SSB, and the second indication information may be carried by system information or a dedicated RRC message.

[0078] For example, the second indication information may be a newly added information element in the system information or dedicated RRC message, including identification information of the second cell, and the cell identification may be (NCGI or PCI). When the information element is not included in the system information or dedicated RRC signaling, it indicates that the terminal device cannot perform downlink reception of the first cell reference signal or determine the measurement result of the first cell through the second synchronization signal block. When the information element is included in the system information or dedicated RRC signaling, it indicates that the terminal device can perform downlink reception of the first cell reference signal or determine the measurement result of the first cell through the second synchronization signal block.

[0079] For example, the newly added information element may be a quasi-co-located cell identification information element, which includes identification information of the second cell and is used to indicate that the first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-located relationship. When this information element is included in the system information or dedicated RRC signaling, it indicates that the terminal device can downlink receive the first cell reference signal or determine the measurement result of the first cell through the second synchronization signal block.

[0080] It should be noted that the network side device that sends / stops sending the first SSB of the first cell and the network side device that sends the second SSB of the second cell may be the same or different network devices, and the network side device that sends the first indication information and the second indication information and receives the wake-up signal and the network side device that sends / stops sending the first SSB of the first cell may also be the same or different network side devices.

[0081] In some embodiments, as described above, upon receiving the second indication information, the terminal device may perform downlink reception of the first cell reference signal or determine a measurement result of the first cell based on the second synchronization signal block. For example, random access may be performed on the first cell based on the second synchronization signal block, RLM / BFD / RRM measurements based on the CSI-RS or SSB of the first cell may be performed, and cell selection and / or reselection measurements may be performed on the first cell. This is described in detail below.

[0082] In some embodiments, in 302, the terminal device may determine a measurement result of the first cell based on the second synchronization signal block, where the measurement result includes: one of received power (RSRP), received quality (RSRQ), and signal-to-interference ratio (SINR). The terminal device may use (the first SSB of) the first cell as the measurement object, or (the second SSB of) the second cell as the measurement object, which are described below respectively.

[0083] On the one hand, the terminal device takes the first SSB as the measurement object. When measuring the first SSB, the second measurement result of the second SSB is used as the first measurement result of the first SSB (with the same index as the second SSB). The measurement result includes the L1 measurement result of the first synchronization signal block, or the L3 measurement result of the first synchronization signal block. The terminal device can perform random access, RLM / BFD / RRM measurement, cell selection or reselection measurement based on the first measurement result, wherein the process of random access, RLM / BFD / RRM measurement, cell selection or reselection measurement can refer to the existing technology, and will be specifically illustrated by examples later.

[0084] On the one hand, when random access is initiated in the first cell, the terminal device takes the second SSB as the measurement object and measures the L1 received power of the second SSB. The terminal device selects the first synchronization signal block for random access in the first cell based on the second measurement result of the second synchronization signal block (instead of or replacing the first measurement result of the first synchronization signal block). Alternatively, the terminal device selects the second synchronization signal block for random access based on the second measurement result of the second synchronization signal block, and determines that the synchronization signal block associated with the PRACH resource of the first cell is the second synchronization signal block (with the same index), so that the terminal device can determine the PRACH resource of the first cell based on the selected second synchronization signal block.

[0085] On the one hand, when performing RLM / BFD based on the first synchronization signal block, the terminal device uses the second SSB as the measurement object and measures the L1 received power of the second SSB. The terminal device determines that the synchronization signal block for radio link detection or beam failure detection based on the first synchronization signal block is the second synchronization signal block (with the same index). Thus, the terminal device performs radio link failure detection or beam failure detection for the first cell based on the second measurement result of the second synchronization signal block.

[0086] On the one hand, when performing RRM measurement based on the first synchronization signal block, the terminal device takes the second SSB as the measurement object and measures the L3 received power, reception quality or signal-to-interference ratio of the second SSB. The terminal device determines that the synchronization signal block for RRM measurement based on the first synchronization signal block is the second synchronization signal block (with the same index), and the terminal device measures the second synchronization signal block according to the configuration parameters of the second synchronization signal block to perform radio resource management (RRM) measurement of the first cell.

[0087] On the one hand, when performing cell selection, reselection, or RRM measurement on the first cell, the terminal device uses the first cell as a measurement object and measures the L3 received power, received quality, or signal-to-interference ratio of the first cell. The terminal device uses the measurement result of the second cell as the measurement result of the first cell.

[0088] On the one hand, when performing cell selection, reselection, or RRM measurement on the first cell, the terminal device uses the second cell as the measurement object and measures the L3 received power, reception quality, or signal-to-interference ratio of the second cell. In this way, the terminal device measures the second cell to determine the measurement result of the first cell.

[0089] Therefore, the terminal device can perform random access, RLM / BFD / RRM measurement, cell selection or reselection measurement based on the measurement results of the second SSB or the second cell, which will be specifically explained with examples later.

[0090] In some embodiments, in 302, the terminal device may perform downlink reception of a first cell reference signal according to the second synchronization signal block, where the first cell reference signal includes: a CSI-RS. The CSI-RS is in a QCL relationship with the first SSB, that is, the terminal device performs downlink reception of the CSI-RS in a QCL relationship with the first SSB according to the second SSB, and performs RLM / BFD / RRM measurement or non-contention random access based on the received CSI-RS. The CSI-RS may be received according to the first SSB, or may be received according to the second SSB. Each of these is explained below.

[0091] On the one hand, when receiving the CSI-RS that is quasi-co-located with the first synchronization signal block, the terminal device uses the second downlink reception parameter for receiving the second synchronization signal block as the first downlink reception parameter for receiving the first synchronization signal block, and receives the CSI-RS based on the first downlink reception parameter. The downlink reception parameter includes Doppler shift, Doppler spread, average delay, delay spread, and spatial reception parameter. That is, the terminal device uses the second downlink reception parameter as the first downlink reception parameter to receive the first SSB, and receives the CSI-RS based on the first downlink reception parameter for receiving the first SSB.

[0092] On the one hand, when the terminal device receives the CSI-RS that is in a quasi-co-location relationship with the first synchronization signal block, the terminal device determines that the quasi-co-location relationship between the CSI-RS and the first synchronization signal block of the first cell is the same as the quasi-co-location relationship between the CSI-RS and the second synchronization signal block of the second cell, and receives the CSI-RS based on the second downlink reception parameter for receiving the second synchronization signal. In other words, the terminal device does not need to receive the first SSB, but instead receives the second SSB, and receives the CSI-RS based on the second downlink reception parameter for receiving the second SSB.

[0093] Therefore, the terminal device can perform RLM / BFD / RRM measurements or non-competitive random access based on the CSI-RS, which will be specifically explained with examples below.

[0094] (1) Random Access

[0095] In existing NR systems, contention-based random access requires selecting the SSB for random access based on the received power (SS-RSRP) of the SSB of the cell currently initiating random access. First, an SSB with an SS-RSRP higher than a preset threshold is selected. The random access opportunity (RO) is determined based on the selected SSB, that is, the next available random access opportunity corresponding to the SSB is selected. Then, a preamble is randomly selected from the preamble group associated with the SSB. Finally, the selected preamble is sent on the corresponding resource of the selected random access opportunity to initiate the random access process. In other words, each valid RO and the preamble sequence it contains are associated with the SSB and mapped. Once an SSB is selected, the preamble sequence is selected and sent on the corresponding RO resource according to the SSB to RO mapping rule.

[0096] For terminal devices in a connected state, contention-based random access is generally initiated in the PCell or PSCell of the terminal device in the connected state, for example, during the RRC connection re-establishment process, uplink synchronization is lost and uplink data arrives in the RRC connected state, uplink LBT fails, scheduling request (SR) fails, there are no PUCCH resources available for SR and uplink data arrives in the RRC connected state, there is a positioning requirement, etc.

[0097] For terminal devices in idle / deactivated state, the terminal device initiates contention-based random access in the resident cell, such as initial access in RRC idle state, RRC connection recovery process in RRC inactive state, other system information requests, small data transmission in RRC inactive state, etc.

[0098] In addition, when a connected terminal device performs RRC-configured non-contention random access, if the network device configures a dedicated random access resource based on an SSB for the terminal device, the terminal device is also required to select the SSB for random access based on the received power (SS-RSRP) of the SSB of the cell currently initiating random access. After selecting the SSB, the UE determines the next available random access opportunity (RO) corresponding to the SSB and sends the dedicated preamble corresponding to the SSB configured by the network on the RO.

[0099] In addition, when a terminal device in a connected state performs non-competitive random access configured by RRC, the network can also configure a dedicated random access resource based on CSI-RS for the non-competitive random access. When the received power of the CSI-RS is higher than the preset threshold, the terminal device selects the dedicated preamble code corresponding to the CSI-RS and the RO that sends the preamble code. For example, when the terminal device detects a beam failure, it initiates a random access based on non-competitive beam failure recovery. In this case, the network can configure a CSI-RS-based random access resource for the terminal device instead of configuring a dedicated random access resource based on SSB.

[0100] Since the SS-RSRP that needs to be measured during the random access process must be based on the synchronization reference signal (SS) in the SSB, if the PCell or PSCell cell of the terminal device or the cell where the terminal device resides stops sending SSB, the terminal device will not be able to complete random access normally.

[0101] In an embodiment of the present application, when the first cell stops sending the first SSB, when a connected terminal device initiates random access in the first cell (PCell / PSCell), or an idle / inactivated terminal device initiates random access in the first cell (resident cell), one method is: when the terminal device measures the received power (SS-RSRP) of the first SSB, it uses the SS-RSRP of the second SSB to calculate the SS-RSRP of the first SSB, and selects the first synchronization signal block for random access based on the measurement result (SS-RSRP) of the first SSB; one method is: the terminal device measures the SS-RSRP of the second SSB, and selects the first synchronization signal block for random access according to the SS-RSRP of the second SSB, for example, selecting a first SSB with the same index as the second SSB whose SS-RSRP is higher than a preset threshold for random access.

[0102] In some embodiments, the terminal device selects a second SSB for random access based on the SS-RSRP of the second SSB, and the terminal device determines that the synchronization signal block associated with the PRACH resource of the first cell is the second synchronization signal block, that is, the SSB index corresponding to the SSB in the PRACH resource configuration (for example, RO or preamble resource configuration) refers to the SSB index of the second synchronization signal block. The PRACH resource configuration includes the PRACH of CBRA configured by RACH-ConfigCommon, the PRACH of CFRA configured by RACH-ConfigDedicated, and the PRACH resource configuration of BFR configured by BeamFailureRecoveryConfig. For example, when the terminal device initiates a competitive random access in the first cell, the random access opportunity (RO) of the PRACH resource corresponding to the index of the second SSB of the selected second cell is determined, and then, a preamble belonging to the first cell is randomly selected from the preamble group related to the index of the second SSB of the second cell, and finally the selected preamble is sent on the resource corresponding to the PRACH random access opportunity of the selected first cell. For example, when the terminal device initiates SSB-based non-competitive random access in the first cell, after selecting the second SSB, the terminal device selects the random access opportunity (RO) of the PRACH resource belonging to the first cell according to the PRACH resource configuration in RACH-ConfigDedicated, and determines the dedicated preamble code belonging to the first cell corresponding to the index of the selected second SSB based on the index of the second SSB.

[0103] In an embodiment of the present application, if the network device configures a dedicated random access resource based on CSI-RS for non-competitive random access, the terminal device performs downlink reception of the CSI-RS that is in a quasi-co-location relationship with the first synchronization signal block according to the second synchronization signal block. When receiving the CSI-RS that is in a quasi-co-location relationship with the first synchronization signal block, the terminal device uses the second downlink reception parameter of the second synchronization signal block as the first downlink reception parameter of the first synchronization signal block, and receives the CSI-RS according to the first downlink reception parameter. Alternatively, the terminal device determines that the quasi-co-location relationship between the CSI-RS and the synchronization signal block of the first cell is the same as the quasi-co-location relationship between the CSI-RS and the synchronization signal block of the second cell, and receives the CSI-RS according to the second downlink reception parameter of the second synchronization signal. When the received power of the CSI-RS is higher than a preset threshold, the terminal device selects the dedicated preamble code corresponding to the CSI-RS and the RO that sends the preamble code, for example, when a beam failure is detected, a non-competitive based beam failure recovery random access is initiated.

[0104] (2) RLM / BFD / RRM Measurements Based on CSI-RS or SSB

[0105] Case 1: Measurement based on SSB

[0106] In the prior art, if the terminal device is configured to perform wireless link or beam failure detection based on the first cell SSB, that is, measure the L1 receiving power of the first cell SSB, but the network device does not send the first cell SSB, the terminal device cannot complete RLM or BFD normally.

[0107] In an embodiment of the present application, when the terminal device measures the first synchronization signal block, the second measurement result of the second synchronization signal block is used as the first measurement result of the first synchronization signal block. Alternatively, the terminal device determines that the synchronization signal block based on the radio link detection or beam failure detection of the first SSB is the second synchronization signal block, and the terminal device evaluates the radio link failure or beam failure of the first cell based on the second measurement result of the second synchronization signal block.

[0108] For example, when a connected terminal device performs RLM and BFD measurements in a first cell that suspends sending a first SSB, the terminal device determines (believes) that the SSB-based reference signal in the RLM / BFD resource configuration for the first cell refers to the second SSB, that is, the SSB-related index used for RLM / BFD of the first cell is the index of the second SSB. For example, the RLM reference signal configuration information can be represented using the Abstract Syntax Notation ASN.1 data format as follows:

[0109]

[0110] That is to say, when the first cell stops sending the first SSB, in the RLM reference signal resource configuration information configured for the first cell, the terminal device believes that the ssb-Index refers to the index of the second SSB, and thus evaluates the wireless link failure or beam failure of the first cell based on the receiving power of the second synchronization SSB.

[0111] In the prior art, if the terminal device is configured to perform RRM measurements based on the SSB of the first cell, including measurements of the L3 reception power, reception quality or signal-to-interference ratio of the SSB of the first cell, but the first cell does not send the first SSB, the terminal device cannot complete the RRM measurement normally.

[0112] In an embodiment of the present application, when the terminal device measures the first synchronization signal block, the second measurement result of the second synchronization signal block is used as the first measurement result of the first synchronization signal block. Or the terminal device determines that the synchronization signal block used for radio resource management measurement is the second synchronization signal block, and the terminal device measures the second synchronization signal block according to the configuration parameters of the second synchronization signal block to perform radio resource management (RRM) measurement of the first cell. Alternatively, the terminal device measures the second cell and reports the measurement result of the second cell to the network as the measurement result of the first cell. In other embodiments, if the terminal device only reports the measurement result of the second cell, the network side may regard the RRM measurement result for the second cell as the measurement result of the first cell.

[0113] Case 2: CSI-RS-based measurement

[0114] In an embodiment of the present application, if the aforementioned RLM / BFD / RRM measurement is based on CSI-RS measurement, the terminal device performs downlink reception of the CSI-RS that is in a quasi-co-location relationship with the first synchronization signal block according to the second synchronization signal block. When receiving the CSI-RS that is in a quasi-co-location relationship with the first synchronization signal block, the terminal device uses the second downlink reception parameter of the second synchronization signal block as the first downlink reception parameter of the first synchronization signal block, and receives the CSI-RS according to the first downlink reception parameter. Alternatively, the terminal device determines that the quasi-co-location relationship between the CSI-RS and the synchronization signal block of the first cell is the same as the quasi-co-location relationship between the CSI-RS and the synchronization signal block of the second cell, and receives the CSI-RS according to the second downlink reception parameter of the second synchronization signal, and completes the measurement based on CSI-RS.

[0115] For example, the TCI status information configured for the CSI-RS resource may be represented using the Abstract Syntax Notation (ASN.1) data format as follows:

[0116]

[0117] Among them, if the cell domain indicates the first cell identifier (the cell where the quasi-co-location reference signal of the CSI-RS is located), the terminal device can consider that the SSB indicated by the SSB domain and the CSI-RS are in a quasi-co-location relationship is the second cell SSB with the same index. Alternatively, if the cell domain indicates the first cell identifier, the terminal device considers that the CSI-RS has a quasi-co-location relationship with the second SSB with the same index in the second cell.

[0118] For example, the configuration information of the RRM measurement of the CSI-RS that is co-located with the first cell SSB may be expressed in the Abstract Syntax Notation ASN.1 data format as follows:

[0119]

[0120] Among them, if the CellId field indicates the first cell identifier, the terminal can consider that the SSB indicated by the associatedSSB field, which is in a co-location relationship with the CSI-RS, is the second cell SSB with the same index. Alternatively, if the CellId indicates the first cell identifier, the terminal device considers that the CSI-RS has a quasi-co-location relationship with the second SSB with the same index.

[0121] (3) Regarding cell selection and / or reselection

[0122] In the prior art, when a terminal device in an idle or deactivated state performs cell selection, the terminal device needs to measure the SSB of the first cell it serves, and calculate parameter values ​​representing cell quality, such as Srxlev and Squal, based on the measurement results and cell selection parameters. When the parameter value does not meet the predetermined condition (S standard), it is determined that the service cell or the frequency where the service cell is located is not a candidate cell and / or candidate frequency for cell selection; otherwise, it is determined that the service cell or the frequency where the service cell is located is a candidate cell and / or candidate frequency for cell selection.

[0123] For example, the S standard is: Srxlev>0 and Squal>0

[0124] Srxlev=Q rxlevmeas –(Q rxlevmin +Q rxlevminoffset )–P compensation -Qoffset temp；

[0125] Squal=Q qualmeas –(Q qualmin +Q qualminoffset )-Qoffset temp

[0126] Among them, Srxlev represents the cell selection reception level value, Squal represents the cell selection quality, Qoffset temp Indicates the offset temporarily applied to the cell, Q rxlevmeas Indicates the average received power value of the cell calculated using SSB measurement SS-RSRP, P compensation Indicates the compensation between uplink and downlink power, which is related to the maximum transmit power p-Max configured in the cell. qualmeas Indicates the cell quality measured using SSB. Then, a suitable cell is selected based on the candidate cells and / or candidate frequencies as the cell selected by the terminal device to complete the cell selection process.

[0127] In the prior art, during the cell reselection process, the serving cell is measured and it is determined whether to measure the neighboring cell. For the same frequency: it is determined whether the quality of the serving cell is higher than the threshold S IntraaSearchP Or threshold S IntraaSearchQ ; When it is higher than the threshold, the same-frequency measurement of the neighboring cell is not performed, otherwise the same-frequency measurement is performed; for different frequencies, if the priority of the different-frequency cell or frequency is higher than the current serving cell or frequency, the terminal device performs the high-priority different-frequency measurement; if the priority of the different-frequency cell or frequency is lower than or equal to the current serving cell or frequency, it is determined whether the serving cell quality is higher than the threshold S nonIntraSearchP or S nonIntraSearchQ ; When it is higher than the threshold, the inter-frequency measurement of the neighboring cell (low priority) is not performed, otherwise the inter-frequency measurement is performed; the above S nonIntraSearchP For cell quality, the threshold corresponding to the reference signal received power (RSRP) is S nonIntraSearchQ The cell quality is the threshold corresponding to the Reference Signal Received Quality (RSRQ); reselection evaluation is required after measurement.

[0128] For different frequencies with the same frequency and the same priority, the following R cell ranking criteria can be calculated based on the measurement results:

[0129] Serving cell R s =Q meas,s +Q hyst -Qoffset temp

[0130] Neighboring cell R n =Q meas,n -Qoffset-Qoffset temp。

[0131] Among them, Qmeas represents the measurement result, Qoffset temp Indicates the temporary cell offset value applied when a connection fails.

[0132] The cells are sorted according to the calculation results, and the cell with the highest rank is reselected. If the cell with the highest rank is barred or is not suitable for a specific reason, the cell is not considered as a candidate cell for cell reselection. Otherwise, the cell is reselected.

[0133] For different priorities of different frequencies: If the quality of a cell on a different frequency with a higher priority than the current serving cell or frequency reselection in the time period is higher than the threshold Thresh X,HighP , then reselect to the cell on the high-priority frequency or use the cell on the high-priority frequency as the best cell; if the quality of a cell on a different frequency with a lower priority than the current serving cell or frequency reselection in the time period is higher than the threshold Thresh X,LowP And the quality of the current serving cell is lower than the threshold ThreshServing,LowP, then reselection to the cell on the low-priority frequency is performed or the cell on the low-priority frequency is used as the best cell. If there is more than one cell that meets the above criteria, the terminal device can reselect the highest-rank cell on the highest-priority frequency that meets the above criteria, or use the highest-rank cell on the highest-priority frequency that meets the above criteria as the best cell. If the reselected cell or the best cell obtained according to the above process is barred or is not a suitable cell for specific reasons, the cell is not considered as a candidate cell for cell reselection, otherwise, the cell is reselected.

[0134] Therefore, in the above-mentioned cell selection or reselection process, the measurement result of the first SSB or the measurement result of the first cell is needed. If the first SSB of the first cell stops sending, the terminal device cannot complete the cell selection or reselection normally.

[0135] In an embodiment of the present application, when a terminal device in an idle or deactivated state performs measurements for cell selection or reselection, if the first cell stops sending the first SSB, the terminal device's measurements for cell selection or reselection will be based on the second cell or the second SSB of the second cell. For example, when the terminal device measures the first synchronization signal block, the second measurement result of the second synchronization signal block is used as the first measurement result of the first synchronization signal block (with the same index), and the measurement result includes the L3 received power or reception quality of the SSB; or, when the terminal device measures the first cell, the measurement result of the second cell is used as the measurement result of the first cell; or, the terminal device measures the second cell to determine the measurement result of the first cell, and performs cell selection or reselection based on the determined measurement result, and the measurement result includes the L3 received power or reception quality of the cell.

[0136] It can be seen from the above embodiments that the terminal device can perform downlink reception of the reference signal of the energy-saving cell or determine the measurement result of the energy-saving cell based on the synchronization signal block of other cells, and the terminal device can perform random access, RLM / BFD / RRM measurement based on CSI-RS or SSB, cell selection or reselection measurement in the energy-saving cell. In this way, the terminal device does not have to switch to other cells, and the terminal device originally residing in the energy-saving cell does not have to reselect the cell. This can avoid migrating the terminal device in the energy-saving state cell to the adjacent cell to cause service interruption and increase the load level of the adjacent cell, ensuring that the user experience is not reduced when the cell enters the energy-saving state.

[0137] Embodiments of the second aspect

[0138] The embodiment of the present application provides a method for sending information. The method is described from the perspective of a terminal device, and the contents that are the same as those in the embodiment of the first aspect are not repeated.

[0139] FIG4 is a schematic diagram of an information sending method according to an embodiment of the present application, which is applied to a terminal device. As shown in FIG4 , the method includes:

[0140] 401. When the terminal device initiates random access in the first cell or performs RLM / BFD / RRM measurement based on the first synchronization signal block of the first cell, or performs cell selection or reselection measurement for the first cell, and the terminal device cannot successfully receive or measure the first synchronization signal block, send a first wake-up signal to the network side device, where the wake-up signal is used to instruct the network side device to resume sending the first synchronization signal block of the first cell;

[0141] In some embodiments, in 401, when the terminal device does not receive the second indication information sent by the network side device and the terminal device initiates random access in the first cell or performs RLM / BFD / RRM measurement based on the first synchronization signal block of the first cell or performs cell selection or reselection measurement on the first cell, the first wake-up signal is sent to the network side device, for example, carried by a designated PRACH opportunity or random access preamble code; the implementation method of the second indication information can refer to the embodiment of the first aspect and will not be repeated here.

[0142] That is to say, the terminal device did not receive the second indication information, indicating that the terminal device cannot perform downlink reception of the first cell reference signal or determine the measurement result of the first cell based on the second SSB. If the terminal device needs to initiate random access or perform RLM / BFD / RRM measurement based on the first synchronization signal block of the first cell or perform cell selection or reselection measurement on the first cell, it is necessary to send a first wake-up signal to enable the first cell to resume sending SSB.

[0143] In some embodiments, the method may further include: when the terminal device fails to successfully receive or measure the second synchronization signal block of the second cell, the terminal device sends a second wake-up signal to the network side device, and the second wake-up signal is used to instruct the network side device to resume sending the second synchronization signal block of the second cell.

[0144] The first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-location (QCL) relationship.

[0145] In some embodiments, the implementation of the first cell, the second cell, the first SSB and the second SSB please refer to the embodiment of the first aspect and will not be repeated here.

[0146] In some embodiments, the method may further include: the terminal device receives first indication information. For the implementation of the first indication information, please refer to the embodiment of the first aspect and will not be repeated here.

[0147] It should be noted that the receiving objects of the first and second wake-up signals, the executing entities sending the first indication information and the second indication information, the network device that stops sending the first SSB, and the network device that sends the second SSB can be the same or different network devices.

[0148] In some embodiments, the method may further include:

[0149] 402. The terminal device receives the first synchronization signal block that is resumed and sent by the network side device;

[0150] 403. Perform random access according to the first synchronization signal block, or perform RLM / BFD / RRM measurement or cell selection or reselection measurement of the first cell based on the first synchronization signal block of the first cell.

[0151] Regarding the implementation of 402-403, reference may be made to the prior art and will not be repeated here.

[0152] In addition, the terminal device can also receive the second synchronization signal block resumed and sent by the network side device.

[0153] As can be seen from the above embodiments, the terminal device can send a wake-up signal (Wake-Up signal) to enable the energy-saving cell that stopped sending SSB to resume sending SSB, and perform random access, CSI-RS or SSB-based RLM / BFD / RRM measurement, cell selection or reselection measurement, etc. in the energy-saving cell based on the resumed SSB. In this way, the terminal device does not have to switch to other cells, and the terminal device originally residing in the energy-saving cell does not have to reselect the cell, which can avoid migrating the terminal device in the energy-saving state cell to the adjacent cell to cause service interruption and increase the load level of the adjacent cell.

[0154] Embodiments of the third aspect

[0155] The present application provides an information sending method, which is a processing method of a network-side device corresponding to the methods of the first and second aspects of the present application, wherein the same contents as those of the first and second aspects of the present application are not repeated.

[0156] FIG5 is a schematic diagram of a method for sending information according to an embodiment of the present application. As shown in FIG5 , the method includes:

[0157] 501, the network side device stops sending the first synchronization signal block of the first cell that should have been sent to the terminal device;

[0158] The first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-location (QCL) relationship.

[0159] In some embodiments, the implementation of the first cell, the second cell, the first SSB and the second SSB please refer to the embodiment of the first aspect and will not be repeated here.

[0160] In some embodiments, the method may further include: the network side device sends first indication information to the terminal device. For the implementation of the first indication information, reference may be made to the embodiment of the first aspect and will not be repeated here.

[0161] In some embodiments, the network side device sends second indication information to the terminal device. The implementation of the second indication information can refer to the embodiment of the first aspect and will not be repeated here.

[0162] In some embodiments, when the second indication information is not sent, that is, the terminal device cannot perform downlink reception of the first cell reference signal or determine the measurement result of the first cell through the second SSB, the method may further include:

[0163] 502. The network side device receives a first wake-up signal sent by the terminal device, where the first wake-up signal is used to instruct the network side device to resume sending the first synchronization signal block of the first cell.

[0164] In some embodiments, the method further comprises:

[0165] 503. The network side device resumes sending the first synchronization signal block of the first cell to the terminal device.

[0166] In some embodiments, the network side device resumes sending the first synchronization signal block of the first cell before sending the RRC reconfiguration message; the RRC reconfiguration message is an RRC reconfiguration message for primary cell group (MCG) or secondary cell group (SCG) resynchronization (ReSynchronization). Since the non-contention random access indicated by the RRC reconfiguration message for MCG / SCG resynchronization (ReSynchronization) is initiated by the network side device, the non-contention random access for MCG / SCG resynchronization (ReSynchronization) cannot be based on CSI-RS, but can only be based on SSB. Therefore, the network device needs to resume sending the first SSB before sending the RRC reconfiguration message, and the terminal device can complete the non-contention random access indicated by the RRC reconfiguration message for MCG / SCG resynchronization (ReSynchronization) based on the resumed first SSB.

[0167] FIG6 is a schematic diagram of a method for sending information according to an embodiment of the present application. As shown in FIG6 , the method includes:

[0168] 601, the network side device sends or stops sending the second synchronization signal block of the second cell that should be sent to the terminal device;

[0169] The first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-location (QCL) relationship.

[0170] In some embodiments, the method may further include:

[0171] 602. The network side device receives a second wake-up signal sent by the terminal device, where the second wake-up signal is used to instruct the network side device to resume sending the second synchronization signal block of the second cell.

[0172] In some embodiments, the method further comprises:

[0173] 603. The network side device resumes sending the second synchronization signal block of the second cell to the terminal device.

[0174] In some embodiments, the network side devices in FIG. 5 and FIG. 6 may be the same network device or different network devices, and the embodiments of the present application are not limited thereto.

[0175] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0176] Embodiments of the fourth aspect

[0177] The present embodiment provides an information sending device. The device may be, for example, a network device, or one or more components or assemblies configured on the network device. The device of the present embodiment corresponds to the method of the third aspect of the embodiment, and the contents that are the same as those of the third aspect of the embodiment are not repeated here.

[0178] FIG7 is a schematic diagram of an example of an information sending device according to an embodiment of the present application. As shown in FIG7 , the information sending device 700 includes:

[0179] A second sending unit 701 stops sending a first synchronization signal block of a first cell that should be sent to a terminal device; and sends or stops sending a second synchronization signal block of a second cell that should be sent to the terminal device;

[0180] The first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-location (QCL) relationship.

[0181] In some embodiments, the second sending unit is further used to send first indication information and / or second indication information. For details about the first indication information and / or second indication information, please refer to the embodiment of the first aspect.

[0182] In some embodiments, the apparatus further comprises:

[0183] A third receiving unit (not shown) receives a first wake-up signal sent by the terminal device, where the first wake-up signal is used to indicate the resumption of sending the first synchronization signal block of the first cell; or receives a second wake-up signal sent by the terminal device, where the second wake-up signal is used to indicate the resumption of sending the second synchronization signal block of the second cell.

[0184] In some embodiments, the second sending unit 701 resumes sending the first synchronization signal block of the first cell to the terminal device, or resumes sending the second synchronization signal block of the second cell.

[0185] In some embodiments, the second sending unit 701 resumes sending the first synchronization signal block of the first cell before sending an RRC reconfiguration message; the RRC reconfiguration message is an RRC reconfiguration message for MCG / SCG resynchronization (ReSynchronization).

[0186] For the implementation of the second sending unit 701, reference can be made to the embodiment of the third aspect, which will not be repeated here.

[0187] The above embodiments of the present application are illustrative, but the present application is not limited thereto, and appropriate modifications can be made based on the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0188] It is worth noting that the above description only describes the components or modules related to this application, but this application is not limited thereto. The information sending device 700 may also include other components or modules. For the specific contents of these components or modules, please refer to the relevant art. In addition, the above components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0189] Embodiments of the fifth aspect

[0190] The embodiments of the present application provide an information processing device. The device may be, for example, a terminal device, or one or more components or assemblies configured on the terminal device. The device of the embodiments of the present application corresponds to the method of the embodiments of the first or second aspect, and the contents that are the same as those of the embodiments of the first or second aspect will not be repeated.

[0191] FIG8 is a schematic diagram of an example of an information processing device according to an embodiment of the present application. As shown in FIG8 , the information processing device 800 includes:

[0192] A first receiving unit 801 is configured to receive a second synchronization signal block (SSB) of a second cell sent by a network side device;

[0193] A first processing unit 802, which performs downlink reception of a first cell reference signal or determines a measurement result of the first cell according to the second synchronization signal block;

[0194] The first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-location (QCL) relationship.

[0195] In some embodiments, when the first receiving unit fails to successfully receive the first synchronization signal block sent by the network side device, the first processing unit performs downlink reception of the first cell reference signal or determines the measurement result of the first cell according to the second synchronization signal block.

[0196] In some embodiments, within a synchronization signal block period, the number of the second synchronization signal blocks sent is not less than the number of the first synchronization signal blocks that should be sent.

[0197] In some embodiments, the first synchronization signal block and the second synchronization signal block having a quasi co-location relationship have the same index.

[0198] In some embodiments, the first receiving unit is further used to receive first indication information sent by a network side device, where the first indication information is used to instruct to stop sending the first synchronization signal block that should have been sent.

[0199] In some embodiments, the first indication information is also used to indicate the index of the first synchronization signal block that should be sent but stops sending.

[0200] In some embodiments, the first receiving unit is also used to receive second indication information sent by a network side device, and the second indication information is used to indicate the identification information of the second cell, or to indicate that the first synchronization signal block and the second synchronization signal block are in a quasi-co-location relationship, so that the terminal device can receive the first cell reference signal downlink or determine the measurement result of the first cell through the second synchronization signal block.

[0201] In some embodiments, the first cell is a special cell (SpCell) of the terminal device when it is in a connected state, or is a cell selected or reselected by the terminal device when it is in an idle or deactivated state.

[0202] In some embodiments, when the first processing unit measures the first synchronization signal block, the second measurement result of the second synchronization signal block is used as the first measurement result of the first synchronization signal block.

[0203] In some embodiments, the measurement result includes an L1 measurement result of the first synchronization signal block, or an L3 measurement result of the first synchronization signal block.

[0204] In some embodiments, the first processing unit selects a first synchronization signal block for random access in the first cell according to the second measurement result of the second synchronization signal block; or

[0205] The first processing unit selects a second synchronization signal block for random access according to the second measurement result of the second synchronization signal block, and determines that the synchronization signal block associated with the PRACH resource of the first cell is the second synchronization signal block.

[0206] In some embodiments, the first processing unit determines the synchronization signal block based on the wireless link detection or beam failure detection of the first synchronization signal block as the second synchronization signal block, and performs wireless link failure detection or beam failure detection of the first cell based on the second measurement result of the second synchronization signal block.

[0207] In some embodiments, the first processing unit determines that the synchronization signal block for radio resource management measurement based on the first synchronization signal block is the second synchronization signal block, and the terminal device measures the second synchronization signal block according to the configuration parameters of the second synchronization signal block to perform radio resource management (RRM) measurement of the first cell.

[0208] In some embodiments, when measuring the first cell, the first processing unit uses the measurement result of the second cell as the measurement result of the first cell, or measures the second cell to determine the measurement result of the first cell.

[0209] In some embodiments, the first processing unit performs downlink reception of a CSI-RS that is in a quasi-co-location relationship with the first synchronization signal block based on the second synchronization signal block.

[0210] In some embodiments, when receiving the CSI-RS that is in a quasi-co-site relationship with the first synchronization signal block, the first processing unit uses the second downlink reception parameter for receiving the second synchronization signal block as the first downlink reception parameter for receiving the first synchronization signal block, and receives the CSI-RS according to the first downlink reception parameter; or, the first processing unit determines that the quasi-co-site relationship between the CSI-RS and the synchronization signal block of the first cell is the same as the quasi-co-site relationship between the CSI-RS and the synchronization signal block of the second cell, and receives the CSI-RS according to the second downlink reception parameter for receiving the second synchronization signal.

[0211] FIG9 is a schematic diagram of an example of an information sending device according to an embodiment of the present application. As shown in FIG9 , the information sending device 900 includes:

[0212] The first sending unit 901 sends a first wake-up signal to the network side device when the terminal device initiates random access in the first cell or performs RLM / BFD / RRM measurement based on the first synchronization signal block of the first cell or performs cell selection or reselection measurement on the first cell, and the terminal device cannot successfully receive or measure the first synchronization signal block. The first wake-up signal is used to instruct the network side device to resume sending the first synchronization signal block of the first cell.

[0213] In some embodiments, when the terminal device does not receive the second indication information sent by the network side device and the terminal device initiates random access in the first cell or performs RLM / BFD / RRM measurement based on the first synchronization signal block of the first cell or performs cell selection or reselection measurement on the first cell, the first sending unit sends the first wake-up signal to the network side device; wherein, the second indication information is used to indicate the identification information of the second cell, or to indicate that the first synchronization signal block and the second synchronization signal block are in a quasi-co-location relationship, so that the terminal device performs downlink reception of the first cell reference signal or determines the measurement result of the first cell through the second synchronization signal block.

[0214] In some embodiments, when the terminal device fails to successfully receive or measure the second synchronization signal block of the second cell, the first sending unit sends a second wake-up signal to the network side device, and the second wake-up signal is used to instruct the network side device to resume sending the second synchronization signal block of the second cell.

[0215] In some embodiments, the apparatus may further include: (not shown)

[0216] a second receiving unit, configured to receive the first synchronization signal block restored and sent by the network side device;

[0217] The second processing unit performs at least one of random access, RLM / BFD / RRM measurement, cell selection or reselection measurement based on the first synchronization signal block.

[0218] In some embodiments, the apparatus may further include: (not shown)

[0219] The third receiving unit receives the first indication information or the second indication information sent by the network device. The implementation of the first indication information and the second indication information can refer to the embodiment of the first aspect and will not be repeated here.

[0220] The above embodiments of the present application are illustrative, but the present application is not limited thereto, and appropriate modifications can be made based on the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0221] It is worth noting that the above description only describes the components or modules related to this application, but this application is not limited thereto. The information processing device 800 or the information sending device 900 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art. In addition, the above components or modules may be implemented by hardware facilities such as processors, memories, transmitters, and receivers; this application is not limited to this.

[0222] Embodiments of the sixth aspect

[0223] An embodiment of the present application also provides a communication system, including a network device and a terminal device.

[0224] In some embodiments, the network device includes the apparatus described in the embodiment of the fourth aspect, and is configured to execute the method described in the embodiment of the third aspect. Since the method has been described in detail in the embodiment of the third aspect, its content is incorporated here and will not be repeated.

[0225] In some embodiments, the terminal device includes the apparatus described in the embodiment of the fifth aspect, and is configured to execute the method described in the embodiment of the first or second aspect. Since the method has been described in detail in the embodiment of the first or second aspect, its content is incorporated here and will not be repeated.

[0226] An embodiment of the present application also provides a network device, such as a gNB (base station in NR), etc.

[0227] Figure 10 is a schematic diagram of a network device according to an embodiment of the present application. As shown in Figure 10 , network device 1000 may include a central processing unit (CPU) 1001 and a memory 1002; memory 1002 is coupled to CPU 1001. Memory 1002 can store various data and information processing programs, which are executed under the control of CPU 1001 to receive and send various information from terminal devices.

[0228] In some embodiments, the functions of the device described in the embodiment of the fourth aspect can be integrated into the central processing unit 1001, and the central processing unit 1001 can be configured to execute a program to implement the method described in the embodiment of the third aspect, the content of which is incorporated herein and will not be repeated here.

[0229] In other embodiments, the device described in the embodiment of the fourth aspect can be configured separately from the central processing unit 1001. For example, the device described in the embodiment of the fourth aspect can be configured as a chip connected to the central processing unit 1001, and the functions of the device described in the embodiment of the fourth aspect can be realized through the control of the central processing unit 1001.

[0230] In addition, as shown in Figure 10, network device 1000 may further include: a transceiver 1003 and an antenna 1004; wherein, the functions of the above components are similar to those in the prior art and are not described here in detail. It is worth noting that network device 1000 does not necessarily include all the components shown in Figure 10; in addition, network device 1000 may also include components not shown in Figure 10, and reference may be made to the prior art for details.

[0231] An embodiment of the present application also provides a terminal device, such as a UE.

[0232] Figure 11 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Figure 11 , terminal device 1100 may include a processor 1101 and a memory 1102. Memory 1102 stores data and programs and is coupled to processor 1101. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication or other functions.

[0233] In some embodiments, the functions of the apparatus of the embodiment of the fifth aspect may be integrated into the processor 1101, wherein the processor 1101 may be configured to execute a program to implement the method described in the embodiment of the first or second aspect, the contents of which are incorporated herein and will not be repeated here.

[0234] In other embodiments, the apparatus of the embodiment of the fifth aspect may be configured separately from the processor 1101. For example, the apparatus of the embodiment of the fifth aspect may be configured as a chip connected to the processor 1101, and the functions of the apparatus of the embodiment of the fifth aspect may be implemented through the control of the processor 1101.

[0235] As shown in Figure 11 , the terminal device 1100 may further include: a communication module 1103, an input unit 1104, a display 1105, and a power supply 1106. The functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that the terminal device 1100 does not necessarily include all of the components shown in Figure 11 , and these components are not essential. Furthermore, the terminal device 1100 may also include components not shown in Figure 11 , for which reference may be made to related art.

[0236] An embodiment of the present application further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the method described in the embodiment of the first or second aspect.

[0237] An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the method described in the embodiment of the first or second aspect.

[0238] An embodiment of the present application further provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the method described in the embodiment of the third aspect.

[0239] An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the method described in the embodiment of the third aspect.

[0240] The above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software. The present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0241] The method / device described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figure and / or one or more combinations of functional block diagrams can correspond to various software modules of the computer program flow or to various hardware modules. These software modules can respectively correspond to the various steps shown in the figure. These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).

[0242] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0243] One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in this application. One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0244] The present application has been described above in conjunction with specific embodiments, but it should be clear to those skilled in the art that these descriptions are exemplary and do not limit the scope of protection of the present application. Those skilled in the art may make various variations and modifications to the present application based on the spirit and principles of the present application, and such variations and modifications are also within the scope of the present application. With respect to the embodiments including the above embodiments, the following supplementary notes are also disclosed:

[0245] 1. An information processing method, applied to a terminal device, characterized in that the method comprises:

[0246] The terminal device receives a second synchronization signal block (SSB) of a second cell sent by a network side device;

[0247] The terminal device performs downlink reception of the first cell reference signal or determines a measurement result of the first cell according to the second synchronization signal block;

[0248] The first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-location (QCL) relationship.

[0249] 2. The method according to Supplement 1, wherein:

[0250] When the terminal device cannot successfully receive the first synchronization signal block sent by the network side device, the terminal device performs downlink reception of the first cell reference signal or determines the measurement result of the first cell according to the second synchronization signal block.

[0251] 3. The method according to Note 1 or 2, wherein, within one synchronization signal block period, the number of the second synchronization signal blocks sent is not less than the number of the first synchronization signal blocks that should be sent.

[0252] 4. The method according to any one of Notes 1 to 3, wherein the first synchronization signal block and the second synchronization signal block having a quasi-co-location relationship have the same index.

[0253] 5. The method according to any one of Notes 1 to 4, wherein the method further comprises:

[0254] The terminal device receives first indication information sent by a network side device, where the first indication information is used to instruct to stop sending the first synchronization signal block that should have been sent.

[0255] 6. The method according to Note 5, wherein the first indication information is also used to indicate the index of the first synchronization signal block that should be sent and stop sending.

[0256] 7. The method according to any one of Notes 1 to 6, wherein the method further comprises:

[0257] The terminal device receives second indication information sent by the network side device, where the second indication information is used to indicate the identification information of the second cell, or to indicate that the first synchronization signal block and the second synchronization signal block are in a quasi-co-location relationship, so that the terminal device performs downlink reception of the first cell reference signal or determines the measurement result of the first cell through the second synchronization signal block.

[0258] 8. The method according to any one of Notes 1 to 7, wherein the first cell is a special cell (SpCell) of the terminal device when it is in a connected state, or a cell selected or reselected by the terminal device when it is in an idle or deactivated state.

[0259] 9. The method according to any one of Notes 1 to 8, wherein the terminal device determines the measurement result of the first cell based on the second synchronization signal block.

[0260] 10. The method according to Note 9, wherein the terminal device determines the measurement result of the first cell according to the second synchronization signal block, comprising:

[0261] When the terminal device measures the first synchronization signal block, the second measurement result of the second synchronization signal block is used as the first measurement result of the first synchronization signal block.

[0262] 11. The method according to Note 10, wherein the measurement result includes an L1 measurement result of the first synchronization signal block, or an L3 measurement result of the first synchronization signal block.

[0263] 12. The method according to Note 9, wherein the terminal device determines the measurement result of the first cell according to the second synchronization signal block, comprising:

[0264] The terminal device selects a first synchronization signal block for random access in the first cell according to the second measurement result of the second synchronization signal block.

[0265] 13. The method according to Supplementary Note 9, further comprising:

[0266] The terminal device selects a second synchronization signal block for random access based on the second measurement result of the second synchronization signal block, and determines that the synchronization signal block associated with the PRACH resource of the first cell is the second synchronization signal block.

[0267] 14. The method according to Note 9, wherein the terminal device determines the measurement result of the first cell according to the second synchronization signal block, comprising:

[0268] The terminal device determines that the synchronization signal block for wireless link detection or beam failure detection based on the first synchronization signal block is the second synchronization signal block, and the terminal device performs wireless link failure detection or beam failure detection of the first cell based on the second measurement result of the second synchronization signal block.

[0269] 15. The method according to Note 9, wherein the terminal device determines the measurement result of the first cell according to the second synchronization signal block, comprising:

[0270] The terminal device determines that the synchronization signal block for wireless resource management measurement based on the first synchronization signal block is the second synchronization signal block, and the terminal device measures the second synchronization signal block according to the configuration parameters of the second synchronization signal block to perform wireless resource management (RRM) measurement of the first cell.

[0271] 16. The method according to Note 9, wherein the terminal device determines the measurement result of the first cell according to the second synchronization signal block, comprising:

[0272] When the terminal device measures the first cell, the measurement result of the second cell is used as the measurement result of the first cell.

[0273] 17. The method according to Note 9, wherein the terminal device determines the measurement result of the first cell according to the second synchronization signal block, comprising:

[0274] The terminal device measures the second cell to determine a measurement result of the first cell.

[0275] 18. The method according to any one of Notes 1 to 8, wherein the terminal device performs downlink reception of the first cell reference signal according to the second synchronization signal block, comprising:

[0276] The terminal device performs downlink reception of the CSI-RS that is in a quasi-co-location relationship with the first synchronization signal block based on the second synchronization signal block.

[0277] 19. The method according to Supplement 18, wherein:

[0278] When receiving the CSI-RS that is quasi-co-located with the first synchronization signal block, the terminal device uses the second downlink reception parameter for receiving the second synchronization signal block as the first downlink reception parameter for receiving the first synchronization signal block, and receives the CSI-RS according to the first downlink reception parameter.

[0279] 20. The method according to Supplement 18, wherein:

[0280] The terminal device determines that the quasi-co-location relationship between the CSI-RS and the synchronization signal block of the first cell is the same as the quasi-co-location relationship between the CSI-RS and the synchronization signal block of the second cell, and receives the CSI-RS according to the second downlink reception parameter for receiving the second synchronization signal.

[0281] 21. A method for sending information, applied to a terminal device, characterized in that the method comprises:

[0282] When the terminal device initiates random access in the first cell or performs RLM / BFD / RRM measurement based on the first synchronization signal block of the first cell, or performs cell selection or reselection measurement on the first cell, and the terminal device cannot successfully receive or measure the first synchronization signal block, a first wake-up signal is sent to the network side device, and the first wake-up signal is used to instruct the network side device to resume sending the first synchronization signal block of the first cell.

[0283] 22. The method according to Note 21, wherein the first cell is a special cell (SpCell) of the terminal device when it is in a connected state, or a cell selected or reselected by the terminal device when it is in an idle or deactivated state.

[0284] 23. The method according to Supplement 21 or 22, wherein the method further comprises:

[0285] The terminal device receives first indication information sent by the network side device;

[0286] The first indication information is used to instruct the network device to stop sending the first synchronization signal block that should be sent.

[0287] 24. The method according to Note 21 or 22, wherein:

[0288] When the terminal device does not receive the second indication information sent by the network side device and when the terminal device initiates random access in the first cell and performs RLM / BFD / RRM measurement or cell selection or reselection measurement based on the first synchronization signal block of the first cell, the first wake-up signal is sent to the network side device; wherein the second indication information is used to indicate the identification information of the second cell, or the second indication information is used to indicate that the first synchronization signal block and the second synchronization signal block are in a quasi-co-location relationship, so that the terminal device performs downlink reception of the first cell reference signal or determines the measurement result of the first cell through the second synchronization signal block.

[0289] 25. The method according to Supplementary Note 24, further comprising:

[0290] When the terminal device cannot successfully receive or measure the second synchronization signal block of the second cell, the terminal device sends a second wake-up signal to the network side device, and the second wake-up signal is used to instruct the network side device to resume sending the second synchronization signal block of the second cell.

[0291] 26. The method according to any one of Notes 21 to 25, wherein the method further comprises:

[0292] The terminal device receives the first synchronization signal block resumed and sent by the network side device;

[0293] Perform at least one of random access, RLM / BFD / RRM measurement, cell selection or reselection measurement based on the first synchronization signal block.

[0294] 27. A method according to any one of Notes 21 to 26, wherein, within a synchronization signal block sending cycle, the number of the second synchronization signal blocks sent is not less than the number of the first synchronization signal blocks that should be sent.

[0295] 28. The method according to any one of Notes 21 to 27, wherein the first synchronization signal block and the second synchronization signal block having a quasi-co-location relationship have the same index.

[0296] 29. A method for sending information, applied to a network-side device, characterized in that the method comprises:

[0297] The network side device stops sending the first synchronization signal block of the first cell that should be sent to the terminal device; and sends or stops sending the second synchronization signal block of the second cell that should be sent to the terminal device;

[0298] The first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-location (QCL) relationship.

[0299] 30. The method according to Note 29, wherein, within one synchronization signal block cycle, the number of the second synchronization signal blocks sent is not less than the number of the first synchronization signal blocks that should be sent.

[0300] 31. The method according to Note 29 or 30, wherein the first synchronization signal block and the second synchronization signal block having a quasi-co-location relationship have the same index.

[0301] 32. The method according to Notes 29 to 30, wherein the method further comprises:

[0302] The network side device sends first indication information to the terminal device, where the first indication information is used to instruct to stop sending the first synchronization signal block that should be sent.

[0303] 33. The method according to Note 32, wherein the first indication information is also used to indicate the index of the first synchronization signal block that should be sent and stop sending.

[0304] 34. The method according to any one of Notes 29 to 33, further comprising:

[0305] The network side device sends a second indication information to the terminal device, and the second indication information is used to indicate the identification information of the second cell, or to indicate that the first synchronization signal block and the second synchronization signal block are in a quasi-co-location relationship, so that the terminal device can receive the first cell reference signal downlink or determine the measurement result of the first cell through the second synchronization signal block.

[0306] 35. The method according to Supplementary Note 29, further comprising:

[0307] The network side device receives a first wake-up signal sent by the terminal device, and the first wake-up signal is used to indicate the resumption of sending the first synchronization signal block of the first cell; or, the network side device receives a second wake-up signal sent by the terminal device, and the second wake-up signal is used to indicate the resumption of sending the second synchronization signal block of the second cell.

[0308] 36. The method according to Supplementary Note 35, further comprising:

[0309] The network side device resumes sending the first synchronization signal block of the first cell to the terminal device, or resumes sending the second synchronization signal block of the second cell.

[0310] 37. The method according to Note 36, wherein the network side device resumes sending the first synchronization signal block of the first cell before sending the RRC reconfiguration message; the RRC reconfiguration message is an RRC reconfiguration message for MCG / SCG resynchronization (ReSynchronization).

[0311] 38. A network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method as described in any one of Notes 29 to 37.

[0312] 39. A terminal device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method as described in any one of Notes 1 to 28.

[0313] 40. A communication system comprising the network device described in Note 38 and / or the terminal device described in Note 39.

Claims

1. An information processing device, applied to a terminal device, characterized in that: The device comprises: a first receiving unit configured to receive a second synchronization signal block (SSB) of a second cell sent by a network-side device; a first processing unit, configured to perform downlink reception of a first cell reference signal or determine a measurement result of the first cell according to the second synchronization signal block; The first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-location (QCL) relationship.

2. The device according to claim 1, wherein When the first receiving unit cannot successfully receive the first synchronization signal block sent by the network side device, the first processing unit performs downlink reception of the first cell reference signal or determines the measurement result of the first cell according to the second synchronization signal block.

3. The device according to claim 1, wherein Within a synchronization signal block cycle, the number of the second synchronization signal blocks sent is not less than the number of the first synchronization signal blocks that should be sent.

4. The device according to claim 1, wherein The first synchronization signal block and the second synchronization signal block having a quasi co-location relationship have the same index.

5. The device according to claim 1, wherein The first receiving unit is further used to receive first indication information sent by a network side device, where the first indication information is used to instruct to stop sending the first synchronization signal block that should have been sent.

6. The device according to claim 5, wherein The first indication information is also used to indicate the index of the first synchronization signal block that should be sent but stops sending.

7. The device according to claim 1, wherein The first receiving unit is also used to receive second indication information sent by a network side device, and the second indication information is used to indicate the identification information of the second cell, or to indicate that the first synchronization signal block and the second synchronization signal block are in a quasi-co-location relationship, so that the terminal device can receive the first cell reference signal downlink or determine the measurement result of the first cell through the second synchronization signal block.

8. The device according to claim 1, wherein The first cell is a special cell (SpCell) of the terminal device when it is in a connected state, or a cell selected or reselected by the terminal device when it is in an idle or deactivated state.

9. The device according to claim 1, wherein When the first processing unit measures the first synchronization signal block, the second measurement result of the second synchronization signal block is used as the first measurement result of the first synchronization signal block.

10. The device according to claim 9, wherein The measurement result includes an L1 measurement result of the first synchronization signal block, or an L3 measurement result of the first synchronization signal block.

11. The device according to claim 1, wherein The first processing unit selects a first synchronization signal block for random access in the first cell according to the second measurement result of the second synchronization signal block; or The first processing unit selects a second synchronization signal block for random access according to the second measurement result of the second synchronization signal block, and determines that the synchronization signal block associated with the PRACH resource of the first cell is the second synchronization signal block.

12. The device according to claim 1, wherein The first processing unit determines that the synchronization signal block for wireless link detection or beam failure detection based on the first synchronization signal block is the second synchronization signal block, and performs wireless link failure detection or beam failure detection of the first cell based on the second measurement result of the second synchronization signal block; and / or the first processing unit determines that the synchronization signal block for wireless resource management measurement based on the first synchronization signal block is the second synchronization signal block, and the terminal device measures the second synchronization signal block according to the configuration parameters of the second synchronization signal block to perform wireless resource management (RRM) measurement of the first cell.

13. The device according to claim 1, wherein When measuring the first cell, the first processing unit uses the measurement result of the second cell as the measurement result of the first cell, or measures the second cell to determine the measurement result of the first cell.

14. The device according to claim 1, wherein The first processing unit performs downlink reception of a CSI-RS that is in a quasi-co-location relationship with the first synchronization signal block according to the second synchronization signal block.

15. The device according to claim 14, wherein When receiving the CSI-RS that is in a quasi-co-site relationship with the first synchronization signal block, the first processing unit uses the second downlink reception parameter for receiving the second synchronization signal block as the first downlink reception parameter for receiving the first synchronization signal block, and receives the CSI-RS according to the first downlink reception parameter; or, the first processing unit determines that the quasi-co-site relationship between the CSI-RS and the synchronization signal block of the first cell is the same as the quasi-co-site relationship between the CSI-RS and the synchronization signal block of the second cell, and receives the CSI-RS according to the second downlink reception parameter for receiving the second synchronization signal.

16. An information sending device, applied to a terminal device, characterized in that: The device comprises: A first sending unit, which sends a first wake-up signal to a network side device when the terminal device initiates random access in the first cell or performs RLM / BFD / RRM measurement based on the first synchronization signal block of the first cell or performs cell selection or reselection measurement on the first cell, and the terminal device cannot successfully receive or measure the first synchronization signal block of the first cell. The first wake-up signal is used to instruct the network side device to resume sending the first synchronization signal block of the first cell.

17. The device according to claim 16, wherein When the terminal device does not receive the second indication information sent by the network side device and the terminal device initiates random access in the first cell or performs RLM / BFD / RRM measurement or cell selection or reselection measurement based on the first synchronization signal block of the first cell, the first sending unit sends the first wake-up signal to the network side device; wherein, the second indication information is used to indicate the identification information of the second cell, or to indicate that the first synchronization signal block and the second synchronization signal block are in a quasi-co-location relationship, so that the terminal device performs downlink reception of the first cell reference signal or determines the measurement result of the first cell through the second synchronization signal block.

18. The device according to claim 16, wherein When the terminal device cannot successfully receive or measure the second synchronization signal block of the second cell, the first sending unit sends a second wake-up signal to the network side device, and the second wake-up signal is used to instruct the network side device to resume sending the second synchronization signal block of the second cell.

19. The device according to claim 16, wherein The device further comprises: a second receiving unit, configured to receive the first synchronization signal block restored and sent by the network side device; The second processing unit performs at least one of random access, RLM / BFD / RRM measurement, cell selection or reselection measurement based on the first synchronization signal block.

20. An information sending device, applied to a network side device, characterized in that: The device comprises: a second sending unit, which stops sending the first synchronization signal block of the first cell that should be sent to the terminal device; and sends or stops sending the second synchronization signal block of the second cell that should be sent to the terminal device; The first synchronization signal block of the first cell and the second synchronization signal block of the second cell are in a quasi-co-location (QCL) relationship.

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