A communication processing method and related equipment for SSB

Abstract

Embodiments of the present application provide a variety of communication processing methods for SSB. In one of the communication processing methods, the terminal side device is pre-configured with NCD-SSB candidate resources, and the access network side device receives NCD-SSB from the available candidate resources indicated in the NCD-SSB candidate resources. If a random access failure occurs, random access is performed again according to the received NCD-SSB. This method configures available NCD-SSB candidate resources for the current initial downlink BWP, detects NCD-SSB in the current initial downlink BWP, and does not need to switch to other downlink BWPs to detect CD-SSB, which helps to reduce the switching of terminal side devices between frequency bands, thereby reducing the resource overhead of the communication system.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of wireless communications, and in particular to a technology related to a synchronization signal-physical broadcast channel block (Synchronization Signal and physical broadcast channel (PBCH) block, SSB). Background Art

[0002] The wireless communication system includes a terminal side device, an access network side device serving the terminal side device, and a core network system. According to the protocol layer division formulated by the 3rd generation partnership project (3GPP), the terminal side device interacts with the access network side device through the access stratum (AS), and the terminal side device interacts with the core network system through the non-access stratum (NAS). Among them, the access layer includes: physical (PHY) layer, medium access control (MAC) layer, radio link control (RLC) layer and packet data convergence protocol (PDCP), radio resource control (RRC) layer and optional service data adaptation (SDAP) layer, etc.

[0003] The terminal side device can obtain the configuration of the initial bandwidth part (BWP) by receiving the master information block (MIB) or system information block (SIB) sent by the access network side device, wherein the configuration of the initial BWP includes the configuration of the initial uplink BWP and the configuration of the initial downlink BWP. The initial downlink BWP may not include the cell-defining CD-SSB, so that the terminal side device needs to switch the RF module to other downlink BWPs with CD-SSB to detect CD-SSB and then switch back to the initial BWP to ensure the subsequent communication on the initial BWP. However, this is not conducive to reducing the power consumption and latency of the terminal side device, thereby increasing the resource overhead of the communication system. Summary of the invention

[0004] The embodiment of the present application provides a secure communication method to reduce the resource overhead of the communication system. Among them, the terminal side device in the embodiment of the present application can be an independently sold terminal device itself, or it can be at least one chip in an independently sold terminal device or a circuit system in the terminal device that implements the communication method. The access network side device serving the terminal side device can be an independent base station, or it can be at least one chip in the base station or a functional module in the base station that implements the communication processing method, for example, a distributed unit (DU) or (central unit, CU) of the base station.

[0005] The first aspect of the embodiment of the present application provides a communication processing method for SSB executed by a terminal side device. The communication processing method includes the following contents.

[0006] The terminal side device receives configuration information sent by the access network side device, where the configuration information is used to configure an initial downlink BWP, wherein the initial downlink BWP is configured with a random access search space, but does not include a configured CD-SSB;

[0007] The terminal side device receives first information sent by the access network side device, where the first information configures at least one non-cell defined NCD-SSB candidate resource on the initial downlink BWP;

[0008] The terminal side device initiates a first random access, and monitors a PDCCH of a random access response scheduling the first random access in the random access search space;

[0009] The terminal side device obtains second information from the access network side device; wherein the second information indicates an available NCD-SSB candidate resource among the at least one NCD-SSB candidate resource;

[0010] The terminal side device receives NCD-SSB on the available NCD-SSB candidate resources, and initiates a second random access according to the received NCD-SSB after the first random access fails.

[0011] By applying the technical solution provided in the first aspect, since the terminal side device is pre-configured with NCD-SSB candidate resources, the access network side device receives NCD-SSB from the available resource candidates indicated in the NCD-SSB candidate resources, thereby performing random access according to the received NCD-SSB after the random access fails. By configuring NCD-SSB for the current initial downlink BWP, detecting NCD-SSB in the current initial downlink BWP without switching to other downlink BWPs to detect CD-SSB, it is beneficial to reduce the power consumption and interruption of the terminal side device, thereby reducing the resource overhead of the communication system.

[0012] In a possible implementation, the second information is carried in a master information block or a system information block sent by the access network side device. Since the master information block and the system information block are broadcast to the terminal side device, no additional terminal-specific signaling is required, which can save system overhead.

[0013] In a possible implementation manner, the second information is carried in a physical downlink control channel PDSCH that carries a random access response of the first random access, or the second information is carried in a PDCCH that schedules the PDSCH.

[0014] In one possible implementation, the terminal side device obtains the second information from the access network side device, including: the terminal side device receives a paging PDCCH, wherein the paging PDCCH carries the second information or the PDSCH scheduled by the paging PDCCH carries the second information; wherein the terminal side device initiates the first random access, including: when it is determined that the terminal side device is paged according to the paging PDCCH, the terminal side device initiates the first random access.

[0015] In a possible implementation manner, the terminal side device acquires the second information from the access network side device, including: the terminal side device monitors a wake-up PDCCH; wherein the wake-up PDCCH carries the second information and a paging advance indication, and the paging advance indication is used to indicate whether the terminal side device is awakened to monitor the paging PDCCH at a monitoring timing of the paging PDCCH;

[0016] The terminal side device initiating the first random access includes: when it is determined that the terminal side device is paged according to the paging PDCCH, the terminal side device initiating the first random access.

[0017] When the terminal side device needs to communicate, the second information is dynamically indicated to the terminal side device through signaling in a random access process or a paging process, so that the terminal side device can obtain the available status of NCD-SSB in a timely manner.

[0018] A second aspect of an embodiment of the present application provides another communication processing method for SSB, which includes the following contents.

[0019] The terminal side device receives first configuration information and second configuration information sent by the access network side device, where the first configuration information is used to configure a first initial downlink BWP, and the second configuration information is used to configure a second initial downlink BWP; wherein the first initial downlink BWP includes a CD-SSB and a configured paging advance indication search space; the second initial downlink BWP is configured with a paging search space but does not include a CD-SSB;

[0020] The terminal side device receives the CD-SSB on the first initial downlink BWP, and monitors the wake-up PDCCH in the paging advance indication search space according to the received CD-SSB, wherein the wake-up PDCCH carries a paging advance indication, and the paging advance indication is used to indicate whether the terminal side device is awakened to detect the paging PDCCH at the monitoring timing of the paging PDCCH in the paging search space;

[0021] If the paging advance indication indicates that the terminal side device is awakened, the terminal side device wakes up and determines that there is a non-cell defined NCD-SSB on the initial downlink BWP;

[0022] The terminal side device receives the NCD-SSB on the second initial downlink BWP;

[0023] The terminal side device monitors the paging PDCCH in the paging search space according to the received NCD-SSB.

[0024] By applying the technical solution provided in the second aspect of the embodiment of the present application, the terminal side device determines the existence of NCD-SSB if it is awakened, and further receives the NCD-SSB for subsequent communication, so that the communication system can purposefully transmit the NCD-SSB according to actual needs, thereby reducing the resource overhead of the communication system.

[0025] The third aspect of the present application provides another communication processing method for SSB, which includes the following contents.

[0026] The terminal side device receives configuration information sent by the access network side device, where the configuration information is used to configure an initial downlink BWP, wherein the initial downlink BWP is configured with a paging advance indication search space and a paging search space, but does not include a cell definition CD-SSB; the terminal side device detects NCD-SSB on the configured NCD-SSB candidate resources before the listening opportunity of the wake-up PDCCH on the paging advance indication search space arrives, wherein the wake-up PDCCH carries a paging advance indication, and the paging advance indication is used to indicate whether the terminal side device is awakened to listen to the paging PDCCH at the listening opportunity of the paging PDCCH;

[0027] If the NCD-SSB is detected, the terminal side device monitors the wake-up PDCCH at the monitoring timing of the wake-up PDCCH.

[0028] By applying the technical solution provided in the third aspect, the terminal side device first detects the existence of NCD-SSB before the listening opportunity for waking up PDCCH arrives, and further confirms the listening and waking up PDCCH, so that the communication system can transmit the NCD-SSB purposefully according to actual needs, thereby reducing the resource overhead of the communication system.

[0029] In a possible implementation, the candidate resources of the NCD-SSB are located in a time window before the listening opportunity of the wake-up PDCCH, wherein the time window is a time period associated with the listening opportunity of the wake-up PDCCH configured by the access network side device, or the time window is a time period consisting of one or more NCD-SSB candidate resource periods closest to the listening opportunity of the wake-up PDCCH. In this way, compared with a time window far from the listening opportunity, the terminal side device can relatively accurately obtain whether the wake-up PDCCH exists.

[0030] In a possible implementation, the wake-up PDCCH is also used to indicate whether there are other available NCD-SSBs; wherein the candidate resources where the other NCD-SSBs are located and the candidate resources where the NCD-SSB is located belong to the same periodic resource. In this way, the available NCD-SSBs can be clearly indicated by waking up the PDCCH so that the terminal side device can perform measurements purposefully.

[0031] In one possible implementation, the method further includes: if the NCD-SSB is not detected, the terminal side device determines not to monitor the wake-up PDCCH. In this way, the terminal side device does not need to monitor the wake-up PDCCH and the paging PDCCH, maintains the RRC non-connected state, and achieves the purpose of saving power consumption.

[0032] A fourth aspect of an embodiment of the present application provides a communication processing method for SSB, and the method includes the following contents.

[0033] The access network side device sends configuration information to the terminal side device, wherein the configuration information is used to configure an initial downlink BWP, wherein the initial downlink BWP is configured with a random access search space but does not include CD-SSB; the access network side device sends first information to the terminal side device, wherein the first information configures at least one NCD-SSB candidate resource on the initial downlink BWP; the access network side device sends second information to the terminal side device, wherein the second information indicates an available NCD-SSB candidate resource among the at least one NCD-SSB candidate resource; the access network side device sends NCD-SSB on the available NCD-SSB candidate resource.

[0034] By applying the technical solution provided in the fourth aspect, the access network side device pre-configures NCD-SSB candidate resources for the terminal side device, and sends NCD-SSB from the available resource candidates indicated in the NCD-SSB candidate resources, so that the terminal side device can detect NCD-SSB in the current initial downlink BWP without switching to other downlink BWPs to detect CD-SSB, thereby reducing the resource overhead of the communication system.

[0035] In a possible implementation, the second information is carried in a master information block or a system information block sent by the access network side device. Since the master information block and the system information block are broadcast to the terminal side device, no additional terminal-specific signaling is required, which can save system overhead.

[0036] In a possible implementation, the method further includes: the access network side device receiving a random access preamble code sent by the terminal side device for the first random access;

[0037] The access network side device sending the second information to the terminal side device includes:

[0038] The access network side device sends a PDCCH that schedules a PDSCH to the terminal side device, wherein the PDSCH carries a random access response of the first random access; and the second information is carried in the PDCCH or in the PDSCH.

[0039] In a possible implementation manner, the access network side device sends the second information to the terminal side device, including:

[0040] The access network side device sends a paging PDCCH to the terminal side device, wherein the paging PDCCH carries the second information or the PDSCH scheduled by the paging PDCCH carries the second information.

[0041] In a possible implementation manner, the access network side device sending the second information to the terminal side device includes:

[0042] The access network side device sends a wake-up PDCCH to the terminal side device, wherein the wake-up PDCCH carries the second information and a paging advance indication, and the paging advance indication is used to indicate whether the terminal side device is awakened to monitor the paging PDCCH at the monitoring timing of the paging PDCCH.

[0043] When the terminal side device needs to communicate, since the PDCCH is sent dynamically, the second information is dynamically indicated to the terminal side device through signaling in the random access process or the paging process, so that the terminal side device can obtain the available status of NCD-SSB in time.

[0044] A fifth aspect of an embodiment of the present application provides a communication processing method for SSB, which includes the following contents.

[0045] The access network side device sends first configuration information and second configuration information to the terminal side device, wherein the first configuration information is used to configure a first initial downlink bandwidth part BWP, and the second configuration information is used to configure a second initial downlink BWP, wherein the first initial downlink BWP includes a synchronization signal-physical broadcast channel block (CD-SSB) of a cell definition CD and a configured paging advance indication search space, and the second initial downlink BWP is configured with a paging search space, but CD-SSB;

[0046] The access network side device sends a wake-up PDCCH in the paging advance indication search space, wherein the wake-up PDCCH carries a paging advance indication, and the paging advance indication is used to indicate whether the terminal side device is awakened to monitor the paging PDCCH at the monitoring timing of the paging PDCCH;

[0047] In a case where the access network side device determines to wake up the terminal side device through the wake-up PDCCH, the access network side device sends a non-cell defined NCD-SSB on the second initial downlink BWP and sends the paging PDCCH in the paging search space.

[0048] By applying the technical solution provided in the fifth aspect, the access network side device determines to wake up the terminal side device before sending the NCD-SSB, so that the communication system can transmit the NCD-SSB purposefully according to actual needs, thereby reducing the resource overhead of the communication system.

[0049] In a possible implementation, when the access network side device determines not to wake up the terminal side device by waking up the PDCCH, the access network side device determines not to send the NCD-SSB on the second initial downlink BWP.

[0050] The sixth aspect of an embodiment of the present application provides a communication processing method for SSB, and the method includes the following contents.

[0051] The access network side device sends configuration information to the terminal side device, where the configuration information is used to configure an initial downlink bandwidth part BWP, wherein the initial downlink BWP is configured with a paging advance indication search space and a paging search space, but does not include a CD-SSB;

[0052] The access network side device determines whether to send the wake-up PDCCH at the listening time of the wake-up PDCCH on the paging advance indication search space; wherein the wake-up PDCCH carries the paging advance indication, and the paging advance indication is used to indicate whether the terminal side device is awakened to listen to the paging PDCCH at the listening time of the paging PDCCH;

[0053] If it is determined that the wake-up PDCCH is sent at the monitoring timing of the wake-up PDCCH, the access network side device sends the NCD-SSB before the monitoring timing of the wake-up PDCCH arrives;

[0054] The access network side device sends the wake-up PDCCH at the monitoring timing of the wake-up PDCCH.

[0055] By applying the technical solution provided in the sixth aspect, the access network side device confirms that the terminal side device is awakened before sending the NCD-SSB before the listening opportunity of waking up the PDCCH, so that the communication system can transmit the NCD-SSB purposefully according to actual needs, reducing the resource overhead of the communication system.

[0056] In a possible implementation, if it is determined that the wake-up PDCCH is not to be sent at the monitoring timing of the wake-up PDCCH, the access network side device determines not to send the NCD-SSB before the monitoring timing of the wake-up PDCCH arrives.

[0057] In a possible implementation, the NCD-SSB is located in a time window before the monitoring opportunity of the wake-up PDCCH, wherein the time window is a time period associated with the monitoring opportunity of the wake-up PDCCH configured by the access network side device, or the time window is a time period consisting of one or more NCD-SSB cycles closest to the monitoring opportunity of the wake-up PDCCH. In this way, compared with a time window far from the monitoring opportunity, the terminal side device can relatively accurately obtain whether the wake-up PDCCH exists.

[0058] In one possible implementation, the wake-up PDCCH is also used to indicate whether there are other available NCD-SSBs; wherein the candidate resources where the other NCD-SSBs are located and the candidate resources where the NCD-SSB is located belong to the same periodic resource. In this way, the available NCD-SSBs can be clearly indicated by waking up the PDCCH so that the terminal side device can perform measurements purposefully.

[0059] The seventh aspect of the embodiment of the present application provides a terminal side device, the terminal side device includes: a transceiver unit and a processing unit. Among them, the transceiver unit can be divided into a receiving unit and a sending unit, the transceiver unit is used to perform the first aspect, the second aspect, and any one of the possible implementations of the receiving and sending actions, the processing unit is used to perform the first aspect, the second aspect, and any one of the possible implementations of the determination and acquisition and other processing actions. In a specific physical implementation, the transceiver unit can be a transceiver circuit or a transceiver, which may include a receiver and a transmitter, and the processing unit can be a processing circuit or a processor. Optionally, the terminal side device can be a terminal device sold independently, or it can be a chip or a circuit system in the terminal device, and the chip or the circuit system contains multiple gate circuits to realize the functions of the aforementioned functional units. The communication device provided in the seventh aspect can achieve the beneficial effects achieved by the aforementioned first aspect, the second aspect, the third aspect and any one of the possible implementations, and will not be described in detail.

[0060] The eighth aspect of the embodiment of the present application provides an access network side device, and the access network side device includes: a sending unit, a processing unit and a receiving unit. Among them, the sending unit and the receiving unit are respectively used to perform the sending and receiving actions in the fourth aspect, the fifth aspect, the sixth aspect and any one of the possible implementations, and the processing unit is used to perform the processing actions such as determination and acquisition in the fourth aspect, the fifth aspect, the sixth aspect and any one of the possible implementations. In a specific physical implementation, the sending unit may be a transmitter, and the receiving unit may be a receiver. Optionally, the access network side device may be an independently sold base station, or a hardware entity of the base station that is split, such as a distributed unit (DU) or (central unit, CU), or a chip or circuit system in the base station, wherein the chip or the circuit system contains multiple gate circuits to realize the functions of the aforementioned functional units. The access network side device provided in the eighth aspect can achieve the beneficial effects achieved by the aforementioned fourth aspect, fifth aspect, sixth aspect and any one of the possible implementations, and will not be described in detail.

[0061] In a ninth aspect of an embodiment of the present application, a communication processing device is provided, comprising a processor and a memory, wherein the memory stores a computer program, and when the computer program is called by the processor, the communication processing device implements the method described in any one of the first aspect, the second aspect, the third aspect, the fourth aspect, the fifth aspect, the sixth aspect and each possible implementation thereof. Optionally, the communication processing device provided in the ninth aspect may be the chip system itself, or may be an independently sold device including the chip system.

[0062] The tenth aspect of the embodiments of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein the computer program is called by a computer to implement the method described in any one of the first aspect, the second aspect, the third aspect, the fourth aspect, the fifth aspect, the sixth aspect, and each possible implementation thereof. The computer-readable storage medium provided in the tenth aspect may be included in a chip system, or an independently sold device including the chip system.

[0063] The eleventh aspect of the embodiment of the present application provides a computer program product, wherein the computer program product includes a method for implementing any one of the first aspect, the second aspect, the third aspect, the fourth aspect, the fifth aspect, the sixth aspect and each possible implementation thereof when called by the computer. The computer program product provided in the ninth aspect may be a computer software code, which may be included in a chip system, or in an independently sold device including the chip system. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0065] Figure 2 A schematic diagram of the time-frequency resource distribution of an SSB provided in an embodiment of the present application;

[0066] FIG. 3A to FIG. 3F An interactive diagram of a communication processing method for SSB provided in an embodiment of the present application;

[0067] FIG. 4A to FIG. 4B Another interactive diagram of a communication processing method for SSB provided in an embodiment of the present application;

[0068] FIG. 5A to FIG. 5C A schematic diagram of another SSB communication processing method interaction provided in an embodiment of the present application;

[0069] Figure 6 A schematic diagram of a unit structure of a communication processing device provided in an embodiment of the present application;

[0070] Figure 7A schematic diagram of the physical structure of a communication processing device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0071] Figure 1 The communication system shown includes a terminal side device, an access network side device and a core network system. Among them, the access network side device can be a base station, a wireless local area network access point, a relay node and other transmission reception points (transmission reception point, TRP), providing access services under authorized spectrum or access services under unauthorized spectrum for the terminal side device. The access network side device is connected to the core network system by wired or wireless means. The terminal side device includes a user equipment (User Equipment, UE), which is a device that provides voice and / or data connectivity to users, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. Common terminal side devices include, for example: mobile phones, tablet computers, laptops, PDAs, mobile Internet devices (mobile internet devices, MIDs), wearable devices, such as smart watches, smart bracelets, pedometers and various user devices in virtual reality technology). The terminal side device can be provided with communication services by one access network side device, or it can be provided with communication services by at least two access network side devices at the same time using dual connection technology.

[0072] The terminal side device and the access network side device transmit uplink data and downlink data on the air interface in accordance with the protocol layer on the uplink and downlink, respectively. From the perspective of physical implementation, the access network side device can be a base station, a wireless local area network access point, etc. itself, or a chip or circuit system in the base station or the wireless local area network access point; the terminal side device can be a user device itself, or a chip or circuit system in the user device. Among them, the access network side device can be used as an independent device, or it can be split into different devices according to the protocol layer. For example, after the access network side device is split according to the protocol layer, the access network side device may include a central unit (CU) and at least one distributed unit (DU). The CU is used to implement the functions of the PDCP layer, RRC layer and the protocol layers above the access network side device; the DU is used to implement the functions of the RLC layer, MAC layer and PHY layer of the access network side device. Those skilled in the art can understand that: for each of the following implementations, the functions of the access network side device at the PDCP layer, RRC layer or the protocol layers above can be performed by the CU; the functions of the access network side device at the RLC layer, MAC layer or PHY layer are performed by the at least one DU. Therefore, in the following embodiments, messages in the PDCP layer, RRC layer and the protocol layers above can be generated by the CU, and messages in the RLC layer, MAC layer or PHY layer can be generated by the DU, and the CU and DU can interact through the F1 interface.

[0073] Figure 1 The communication system shown can be connected to the Internet via wired or wireless means, wherein the Internet includes application servers that provide various content services (such as multimedia movies and music). The terminal side device can perform data transmission with these application servers through the application layer using corresponding application layer functions, wherein the application layer functions are also called applications. Figure 1 The communication system shown may be a wireless communication system such as a New Radio (NR) system (also called a 5G system), LTE (long term evolution, LTE) and an advanced long term evolution (LTE-A) system. These wireless communication systems may be frequency division multiplexing systems or time division multiplexing systems.

[0074] The NR system mainly uses two operating carrier frequencies: frequency range 1 (FR1) and FR2. Among them, the frequency range of FR1 is 450MHz to 6GHz, also known as sub 6GHz, low frequency; the frequency range of FR2 is 24.25GHz to 52.6GHz, usually called millimeter wave or high frequency.

[0075] In the above communication system, the functions of the PHY layer are implemented through physical layer channels. Commonly used physical layer channels include physical broadcast channel (PBCH), physical uplink control channel (PUCCH), physical downlink control channel (PDCCH), physical uplink shared control channel (PUSCH) and physical downlink shared control channel (PDSCH). Among them, the transmission of PUSCH and PDSCH can be realized through the scheduling of PDCCH, that is, PDCCH indicates the transmission resource location of PUSCH or PDSCH.

[0076] Information such as the frequency band occupied by PDCCH in the frequency domain and the number of symbols (such as orthogonal frequency division multiplexing (OFDM) symbols) occupied in the time domain is encapsulated in the control resource set (CORESET), and information such as the symbol number index at the start of PDCCH and the PDCCH monitoring period are encapsulated in the search space (SS). Therefore, the configuration of PDCCH includes the configuration of the search space and the configuration of CORESET. The PDCCH candidate resources monitored by the terminal side device are determined by the configuration of the CORESET and the configuration of the search space.

[0077] In the NR system, a bandwidth part (BWP) is a frequency range on a carrier with a given subcarrier spacing. A BWP can be configured with at least one control resource set. A control resource set includes time-frequency resources; wherein, the control resource set in the frequency domain includes a wideband or one or more subbands in a wideband; and the control resource set in the time domain includes one or more OFDM symbols. The frequency domain resources included in a control resource set can be continuous or discontinuous, wherein the unit of frequency domain resources is a resource block (RB), and one RB includes 12 subcarriers. When the subcarrier spacing is 15kHz, one RB is a frequency range of 180KHz.

[0078] One or more search spaces form a search space set. Unless otherwise specified, the terms search space and search space set are interchangeable.

[0079] PDCCH carries downlink control information (DCI). DCI formats of different functions are scrambled by different radio network temporary identifiers. For example, the DCI format of the PDCCH that schedules the paging message is scrambled by the P-RNTI (this PDCCH is referred to as the paging PDCCH), and the DCI format of the PDCCH that schedules the random access response is scrambled by the radio network temporary identifier (RNTI) corresponding to the random access, wherein the random access response is carried in the physical downlink shared channel (PDSCH) scheduled by the PDCCH, the random access includes two types: 4-step random access and 2-step random access, and the RNTI corresponding to the random access includes 4-step random access RNTI (usually expressed as RA-RNTI) and 2-step random access RNTI (usually expressed as MsgB-RNTI).

[0080] In a time slot of the NR physical layer, the primary synchronization signal (PSS), secondary synchronization signal (SSS), PBCH and PBCH demodulation reference signal (DRMS) are packaged into a block for transmission, and this block is called SSB. Figure 2 As shown in the figure, an SSB occupies 4 consecutive symbols in the time domain (for example, symbol 0 to symbol 3) and 20 consecutive resource blocks (RB) in the frequency domain, each of which is 12 subcarriers. The first symbol (for example, symbol 0) is PSS, and the third symbol (symbol 2) is SSS. Both PSS and SSS occupy 127 subcarriers. PBCH is distributed in the 2nd to 4th symbols (symbol 1 to symbol 3) of SSB in the time domain, 240 subcarriers in the frequency domain, and occupies the resource element (RE) not used by SSS in the 3rd symbol. The frequency domain bandwidth size of SSB at different subcarrier spacings is shown in Table 1.

[0081] Table 1

[0082] SSB subcarrier spacing (KHz) SSB frequency domain bandwidth (20 RBs) (MHz) 15KHz 3.6 30KHz 7.2 120KHz 28.8 240KHz 57.6

[0083] NR SSB includes cell-defining (CD) SSB and non-cell-defining (NCD) SSB. CD-SSB corresponds to one cell, and this cell has a unique NR cell global identifier (NCGI). If an SSB is associated with remaining minimum system information (RMSI), this SSB is a CD-SSB. The terminal side device obtains the RMSI based on the detected CD-SSB. If an SSB is not associated with RMSI, this SSB is an NCD-SSB.

[0084] One or more SSBs can form an SSB burst set, which is located in the first half or second half of the radio frame. The period of this SSB burst set can also be called the SSB period. The types of SSBs contained in the same SSB burst set are the same, that is, either CD-SSB or NCD-SSB.

[0085] Lmax indicates the maximum number of SSBs that the access network side device can send in an SS burst set. Normally, the number of SSBs actually sent in an SS burst set is less than or equal to Lmax. The value of Lmax is related to the frequency range. For example, when the carrier frequency of the SSB is NR FR1 and less than or equal to 3GHz, Lmax = 4; when the carrier frequency of the SSB is NRFR1 and greater than 3GHz, Lmax = 8; when the carrier frequency of the SSB is FR2, Lmax = 64.

[0086] The terminal side device can achieve downlink time and frequency synchronization with the access network side device and obtain the physical cell identifier (PCI) of the cell by detecting the PSS and SSS in the SSB, thereby using the cell as the initial resident cell. Based on the downlink synchronization, the terminal side device obtains the master information block (MIB) carried on the PBCH through channel measurement and channel estimation of the PBCH DRMS.

[0087] If the MIB indicates the existence of a control resource set (CORESET) of type 0 PDCCH common search space (type0-physical downlink controlchannel common search space, Type-0 PDCCH CSS), it indicates that the SSB is a CD-SSB. Among them, Type-0 PDCCH CSS is also called search space 0, search space set 0, or search space set identified as 0; the CORESE is called CORESET identified as 0, MIB-configuredCORESET#0, or simply CORESET#0. The terminal side device uses the system information-radio network temporary identifier (SI-RNTI) on CORESET#0 and the Type-0 PDCCH CSS to monitor the SI-RNTI-scrambled PDCCH, wherein the PDSCH scheduled by the PDCCH carries system information block 1 (SIB1), and SIB1 carries the RMSI associated with the SSB.

[0088] If the above MIB indicates that CORESET#0 does not exist, the terminal side device cannot obtain RMSI, which indicates that the SSB is not associated with RMSI, and therefore the SSB is NCD-SSB.

[0089] The above MIB can indicate whether CORESET#0 exists through different bit states; it can indicate the existence of CORESET#0 by carrying the configuration of CORESET#0, and indicate the non-existence of CORESET#0 by not carrying the configuration of CORESET#0.

[0090] If the MIB carries the configuration of CORESET#0, the terminal side device can determine the location and bandwidth of the initial downlink BWP as the location and bandwidth of the configured CORESET#0 according to the configuration of CORESET#0, and monitor the SI-RNTI-scrambled PDCCH on CORESET#0 to obtain SIB1. The SIB1 can carry the configuration of the initial downlink BWP to reconfigure the location and bandwidth of the initial downlink BWP, wherein the initial downlink BWP reconfigured by the SIB1 includes at least the location and bandwidth of CORESET#0 in the frequency domain.

[0091] In the subsequent communication process, if the terminal side device receives an RRC dedicated message such as an RRC establishment message, an RRC recovery message or an RRC re-establishment message, the terminal side device uses the initial downlink BWP configured by the MIB before the terminal side device receives the RRC establishment message, the RRC recovery message or the RRC re-establishment message; after the terminal side device receives these RRC dedicated messages, the terminal side device uses the initial downlink BWP newly indicated by SIB1. The configuration of the initial uplink BWP can be specifically indicated by the initialUplinkBWP included in SIB1.

[0092] In the NR system, terminal side devices include two types: reduced capability (RedCap) type terminal side devices and ordinary type terminal side devices.

[0093] The maximum bandwidth supported by the terminal side equipment of the reduced capability type in FR1 is 20MHz, and the maximum bandwidth supported in FR2 is 100MHz. The terminal side equipment of the ordinary type includes the terminal side equipment supporting eMBB services and the terminal side equipment supporting URLLC services, which are required to support a maximum bandwidth of 100MHz in FR1 and a maximum bandwidth of 200MHz in FR2. For some ordinary type terminals, it is also possible to support a maximum bandwidth of 400MHz in FR2. The terminal side equipment of the ordinary type is also called the legacy terminal side equipment.

[0094] Although the maximum bandwidth supported by the terminal side devices of the reduced capability type is relatively small, it can reduce the complexity of device implementation, save power consumption, and thus reduce costs. The terminal side devices of the reduced capability type are mainly used in wearable devices, industrial wireless sensors, and video surveillance. The terminal side devices of the reduced capability type can be extended to low-power terminals such as the terminal side devices of machine type communication (MTC) and the terminal side devices of narrow band-internet of things.

[0095] As mentioned above, both ordinary type terminal side devices and reduced capability type terminal side devices can obtain the configuration of the initial downlink BWP through SIB1. At present, it is considered that the reduced capability type terminal side device can be configured with the reduced capability type specific initial downlink BWP (which can be called reduced capability initial downlink BWP, reduced capability dedicated initial downlink BWP or independent initial downlink BWP) through SIB1, and accordingly, the ordinary type terminal side device is configured with the ordinary type specific initial downlink BWP (which can be called legacy initial downlink BWP or ordinary initial downlink BWP) through SIB1. Through this design, on the one hand, the congestion caused by the reduced capability type terminal side device and the ordinary type terminal side device using the same initial downlink BWP is reduced, for example, the PDCCH for scheduling random access response, the PDCCH for scheduling service data transmission, and the PDCCH for scheduling paging messages are received on CORESET#0 using the same initial downlink BWP. Due to limited capacity, these PDCCHs are received by two types of terminal side devices at the same time, causing congestion. Through this design, on the other hand, in the time division multiplexing system, the initial uplink BWP and the initial downlink BWP of the terminal side device of the reduced capability type can use the same center frequency to form a BWP pair without destroying the channel reciprocity in the time division multiplexing system.

[0096] Regardless of whether it is a normal type of terminal side device or a reduced capability type of terminal side device, the configured initial downlink BWP may not include CD-SSB. In particular, the bandwidth supported by the reduced capability type of terminal side device is smaller. For example, CD-SSB is located in the middle of the working carrier, while the initial downlink BWP corresponding to the reduced capability type is likely to be located at the edge of the working carrier. Regardless of which type of terminal side device works on the initial downlink BWP, to receive SSB for automatic gain control (AGC) adjustment, time-frequency tracking, beam management, wireless resource management measurement, etc., it is necessary to switch the RF module to other downlink BWPs with CD-SSB to detect CD-SSB and then switch back to the initial downlink BWP to ensure subsequent communication on the initial downlink BWP. However, this is not conducive to reducing the power consumption and latency of the terminal side device, and leads to an increase in communication resource overhead.

[0097] In view of the above problems, the first embodiment of the present application provides a communication processing method for SSB. Figure 3A As shown, the method includes the following contents.

[0098] 301. The access network side device sends configuration information to the terminal side device, where the configuration information is used to configure an initial downlink BWP, wherein the initial downlink BWP is configured with a random access search space but does not include a CD-SSB.

[0099] It should be understood that whether a BWP includes or does not include an SSB means that the frequency domain range of the BWP includes or does not include the frequency domain range of the SSB.

[0100] Optionally, in 301, the access network side device may send a CD-SSB at the center frequency of a certain carrier, and the terminal side device detects the CD-SSB to achieve downlink time-frequency synchronization and obtains the MIB, and then obtains the SIB. Among them, the SIB (for example, SIB1) carries the configuration information, and the configuration information configures the initial downlink BWP, wherein there is no CD-SSB at the frequency domain position where the initial downlink BWP is configured. For a terminal side device of a reduced capability type, the initial downlink BWP is the initial downlink BWP corresponding to the reduced capability type; for a terminal side device of a normal type, the initial downlink BWP is the initial downlink BWP corresponding to the normal type.

[0101] It should be understood that, regardless of the terminal side device of the reduced capability type or the ordinary type, in addition to the initial downlink BWP, the terminal side device can also be configured with an initial downlink BWP when receiving MIB and SIB1, which is called the initial downlink BWP corresponding to the ordinary type (referred to as normal initial downlink BWP or legacy initial downlink BWP), and the frequency domain position of the normal initial downlink BWP includes CD-SSB.

[0102] 302. The terminal side device receives first information sent by the access network side device, where the first information configures at least one NCD-SSB candidate resource on the initial downlink BWP.

[0103] In 302, the first information may be carried in a SIB (eg, SIB1). In this case, 301 and 302 may be combined.

[0104] In 302, the first information may also be carried in an RRC dedicated message, such as an RRC setup message, an RRC resume message, or an RRC reestablishment message, or carried in other RRC messages in the RRC connection state, such as an RRC release (RRCRelease) message.

[0105] In 302, the NCD-SSB candidate resources configured by the first information may indicate parameters such as the frequency position and the transmission period of the NCD-SSB candidate resources.

[0106] In 302, the first information may be sent by the access network side device to the terminal side device on the currently activated downlink BWP when the terminal side device is in the RRC connected state. For example, the access network side device instructs the terminal side device to enter the RRC non-connected state from the RRC connected state, wherein the RRC non-connected state includes the RRC idle state (indicated by an RRC release message) and the RRC non-activated state (indicated by an RRC suspend message). In this case, the first information may not be distinguished as being used for the RRC connected state or the RRC non-connected state. It should be noted that the terminal side device may determine the currently activated downlink BWP according to the indication of the access network side device, so the currently activated downlink BWP may be the initial downlink BWP, or may not be the initial downlink BWP.

[0107] 303, the terminal side device initiates a first random access, monitors the PDCCH of the random access response that schedules the first random access in the random access search space, and obtains second information sent from the access network side device; wherein the second information indicates the available NCD-SSB candidate resources among the at least one NCD-SSB candidate resources.

[0108] It should be understood that the embodiments of the present application do not limit the time sequence in which the terminal side device initiates the first random access and obtains the second information.

[0109] Optionally, if the terminal side device obtains the second information before initiating the first random access, the terminal side device will know the available NCD-SSB candidate resources after obtaining the second information. After obtaining the second information, the terminal side device can switch to the initial downlink BWP to measure NCD-SSB, and then initiate the first random access according to the measurement result of NCD-SSB, that is, the terminal side device can also receive NCD-SSB before initiating the first random access.

[0110] It should be understood that the terminal side device initiating the first random access means that the terminal side device sends a random access preamble (or called a physical random access channel preamble (PRACH preamble)) at a random access channel occasion (RACH occasion, RO).

[0111] Among them, the available NCD-SSB candidate resources indicate that NCD-SSB exists on the NCD-SSB candidate resources, and the unavailable NCD-SSB candidate resources indicate that NCD-SSB does not exist on the NCD-SSB candidate resources. The access network side device sends NCD-SSB on the available NCD-SSB candidate resources, and does not send NCD-SSB on the unavailable NCD-SSB candidate resources.

[0112] Wherein, the terminal side device initiates the first random access, including: when it is determined according to the paging PDCCH that the terminal side device is paged, the terminal side device initiates the first random access. Wherein, the paging PDCCH indicates whether there is a paging PDSCH, and the paging PDSCH indicates whether the terminal side device is paged. For example, if the paging PDSCH includes the identifier of the terminal side device, it means that the terminal side device is paged. Optionally, the terminal side device may also actively initiate the first random access when it is not paged. For example, the first random access may be initiated when the terminal side device has data to send to the access network side device.

[0113] 304. The terminal side device receives an NCD-SSB on the available NCD-SSB candidate resources, and initiates a second random access according to the received NCD-SSB after the random access fails.

[0114] It should be understood that initiating the second random access according to the received NCD-SSB means that the terminal side device performs measurements according to the NCD-SSB and initiates the second random access according to the measurement results.

[0115] It should be understood that the present application does not limit the order in which the terminal side device receives the NCD-SSB on the available NCD-SSB candidate resources and the first random access fails. After acquiring the second information, the terminal side device will know the available NCD-SSB. Then, during the first random access process, if an available NCD-SSB candidate resource is encountered, the terminal side device can receive and measure the NCD-SSB. Optionally, if the terminal side device does not encounter an available NCD-SSB candidate resource before the first random access fails, it can also receive and measure the NCD-SSB on the available NCD-SSB candidate resource after the first random access fails, and then initiate a second random access based on the measurement result of the NCD-SSB.

[0116] In 303 and 304, the first random access and the second random access may use the same random access preamble, or may use different random access preambles in the same or different random access preamble pools. The first random access and the second random access may be random access of the same type or different types, for example, both are 4-step random access or 2-step random access, or one is 4-step random access and the other is 2-step random access. The terminal side device sends a random access preamble, and starts listening to the PDCCH scrambled by the RNTI corresponding to the 4-step random access or the RNTI corresponding to the 2-step random access in the random access search space on the initial downlink BWP. Among them, the random access search space is also called type 1-PDCCH common search space set (type-1PDCCH CSS).

[0117] In 303, the first random access may succeed or fail. The reasons for the failure of the first random access include: unsuccessful reception of the random access response, failure of contention resolution, etc. If it fails, enter 304 for the second random access. Among them, the unsuccessful reception of the random access response may be that the PDCCH is not detected in the time window (also called the random access response listening window) of the PDCCH that schedules the random access response, or the PDSCH carrying the random access response is not correctly received or the PDSCH carrying a random access response does not include the random access preamble ID (RAPID) sent by the terminal side device. The failure of contention resolution may be that the contention resolution timer of the random access response has timed out, resulting in the failure to monitor the PDCCH of message 4 that schedules the first random access, or the PDSCH carrying the message 4 does not include the common control channel (CCCH) service data unit (SDU) sent by the terminal side device in message 3 of the first random access. It should be noted that, for 2-step random access, message 3 and message 1 are combined into message A of 2-step random access, and message 4 and message 2 are combined into message B of 2-step random access.

[0118] In 303, there are several optional implementations:

[0119] (1) The second information is carried in the system information sent by the access network side device in a broadcast form, for example, the system information is information included in the MIB. The second information may occupy one bit reserved in the MIB by the 3GPP standard.

[0120] (2) The second information is carried in the PDCCH of the random access response for scheduling the first random access, such as Figure 3B shown.

[0121] In this example, the second information is carried in the PDCCH of the scheduling random access response, indicating that the terminal side device initiates the first random access first and obtains the second information later.

[0122] (3) The second information is carried in a PDSCH that carries a random access response of the first random access.

[0123] In (2) and (3), the PDCCH indicates the resource location of the PDSCH carrying the random access response. The terminal side device may receive the PDSCH at the indicated resource location, thereby obtaining the random access response carried by the PDSCH. The DCI format of the PDCCH may be DCI format 1_0 defined by the 3GPP standard, and the second information may occupy at least one bit reserved by the 3GPP standard in DCI format 1_0.

[0124] (4) The second information is carried in the paging PDCCH, such as Figure 3C As shown, or carried in the PDSCH scheduled by the paging PDCCH.

[0125] Optionally, a paging search space is configured on the legacy initial downlink BWP, and the terminal side device switches to the legacy initial downlink BWP to listen to the paging PDCCH, thereby obtaining the second information. Alternatively, when the first random access is not initiated and the terminal side device is in the RRC idle state or the RRC inactive state, it works in the legacy initial downlink BWP, and periodically listens to the paging PDCCH in the legacy initial downlink BWP, wherein the listening period may be the disconnected reception (DRX) period configured by the access network side device. In this case, the access network side device may not always send the NCD-SSB in a non-periodic manner on the initial downlink BWP corresponding to the reduced capability type.

[0126] Optionally, a paging search space is configured on the initial downlink BWP corresponding to the reduced capability type, and the terminal side device monitors the paging PDCCH on the initial downlink BWP to obtain the second information. In this case, the access network side device may not always send the NCD-SSB in a non-periodic manner on the initial downlink BWP corresponding to the reduced capability type.

[0127] (5) The second information is carried in the wake-up PDCCH, such as Figure 3D shown.

[0128] In (4) and (5), the second information is carried in the paging PDCCH, or the PDSCH scheduled by the paging PDCCH, or the wake-up PDCCH, indicating that the terminal side device obtains the second information first and then initiates the first random access.

[0129] Optionally, a paging advance indication search space and a paging search space are configured on the legacy initial downlink BWP, and the terminal side device of the reduced capability type switches to the legacy initial downlink BWP to monitor the wake-up PDCCH, thereby obtaining the second information, and further monitors the paging PDCCH on the legacy initial downlink BWP. In this case, the access network side device may not always send the NCD-SSB in a non-periodic manner on the initial downlink BWP corresponding to the reduced capability type.

[0130] Optionally, a paging advance indication search space is configured on the legacy initial downlink BWP, a paging search space is configured on the initial downlink BWP corresponding to the reduced capability type, and the terminal side device corresponding to the reduced capability type monitors the wake-up PDCCH on the legacy initial downlink BWP to obtain the second information, and further monitors the paging PDCCH on the initial downlink BWP corresponding to the reduced capability type. In this case, the access network side device corresponding to the reduced capability type may not always send the NCD-SSB in a non-periodic manner on the initial downlink BWP corresponding to the reduced capability type. Optionally, in the RRC idle state / inactive state, the terminal side device operates in the legacy initial downlink BWP when no random access is initiated.

[0131] Optionally, a paging advance indication search space and a paging search space are configured on the initial downlink BWP corresponding to the reduced capability type, and the terminal side device corresponding to the reduced capability type monitors the wake-up PDCCH on the initial BWP corresponding to the reduced capability type to obtain the second information, and further monitors the paging PDCCH. In this case, the access network side device may not always send the NCD-SSB in a non-periodic manner on the initial downlink BWP corresponding to the reduced capability type. Optionally, in the RRC idle state / inactive state, the terminal side device operates in the legacy initial downlink BWP when no random access is initiated.

[0132] Optionally, in the above implementation process, the second information may be valid within a corresponding effective time. After the terminal side device receives the second information, the terminal side device may determine that the second information begins to take effect. The effective time may be configured by the access network side device or predefined by a standard protocol.

[0133] For example, if the second information indicates that the NCD-SSB candidate resources are available, the NCD-SSB candidate resources are available only within the validity period of the second information.

[0134] If the second information indicates that the NCD-SSB candidate resource is unavailable, optionally, the NCD-SSB candidate resource is unavailable during the validity period of the second information. Alternatively, at this time, the terminal side device considers the NCD-SSB candidate resource to be unavailable before receiving the next second information indicating that the NCD-SSB candidate resource is available.

[0135] The validity period may be a time window starting from the time when the terminal side device receives the second information, or starting from the time when the second information is received, or starting from before the second information is received. For example, the time window may be 1 times or a multiple greater than 1 of the period when the NCD-SSB is transmitted in a periodic manner.

[0136] The time window can be one of the following:

[0137] Mode 1, the time window may be a time window for monitoring the PDCCH used to schedule the random access response, such as Figure 3B As shown, or a period of time including the time window for monitoring the PDCCH, such as Figure 3E The start of the time length may be the start of the time window for monitoring the PDCCH, or the start of the next symbol, time slot or subframe after the terminal side device sends the random access preamble code last time.

[0138] Mode 2, the time window may be one of the periods of a periodic time window (wherein the period is equal to the duration of any time window), and the start of the time window is the start of the current time window or the next time window in which the second information is obtained, such as Figure 3F As shown. For the case where the terminal side device supports the discontinuous reception (DRX) mechanism, the time window can be one or more paging DRX cycles, or a period of time including the one or more paging DRX cycles. The start of this period of time is the start of the one or more paging DRB cycles, for example, the start of the default paging DRX cycle (for example, the first frame or the first paging frame) in which the second information is received. As another example, the time window can be one or more modification periods of system information, or a period of time including the one or more modification periods. The start of this period of time is the start of one or more modification periods. A modification period can be configured as a multiple of a paging DRX cycle. The paging DRX cycle is the default paging DRX cycle configured by the access network side device, or is a paging DRX cycle determined by the terminal side device to be applicable to the terminal side device.

[0139] Mode 3, the time window may be a time window after the PDCCH carrying the second information or after the PDSCH used to carry the second information, such as Figure 3E and3F The start of the time window may be the start of the next symbol, time slot or subframe after the PDCCH or the PDSCH. The start of the time window may be a time offset from the PDCCH or the PDSCH by a preset time length, and the preset time length may be determined based on the demodulation, decoding of the PDCCH or the PDSCH and the parsing time of the PDCCH / PDSCH carrying content.

[0140] Mode 4, the time window may be a plurality of discontinuous time periods. For example, the time window includes a first time period and a second time period, wherein the first time period is a time window for monitoring a PDCCH for scheduling the random access response, and the second time period is a timing time of a contention resolution timer for the first random access, wherein the start of the second time period is the time when the contention resolution timer is first started or restarted.

[0141] Mode 5, the time window can be the time from the receipt of the second information by the terminal side device to the successful random access.

[0142] Optionally, if the second information indicates that the NCD-SSB candidate resources are available, the NCD-SSB candidate resources are available until the next second information indicating that the NCD-SSB candidate resources are unavailable is received.

[0143] Optionally, between the first random access initiated in 303 and the second random access initiated in 304, when an available NCD-SSB resource arrives, the terminal side device may perform NCD-SSB time-frequency measurement. Since the beam mode of the SSB with the largest signal strength of the terminal side device may change, if the terminal side device fails to access the random access after sending the random access preamble for the first time during a random access process. In this case, the terminal side device may send the random access preamble again or send a newly selected random access preamble to re-initiate random access. Therefore, before re-initiating random access, the terminal side device may reselect the NCD-SSB according to the measurement result of the NCD-SSB, for example, reselect the NCD-SSB with the strongest signal strength. The terminal side device may determine whether to select a new random access channel occasion (RO) for sending the random access preamble and whether to adjust the transmit power based on whether the selected NCD-SSB changes. For example, if the selected NCD-SSB has not changed, the terminal side device may increase the transmission power to improve the success rate of random access; otherwise, the terminal side device keeps the transmission power unchanged. Among them, if the terminal side device does not receive the random access response of the first random access or the PDSCH carrying the random access response does not include the RAPID of the terminal side device, the terminal side device still uses the random access preamble of the first random access for retransmission in the second random access. In this case, the terminal side device completes the transmission of the random access preamble within T+0.75 milliseconds after the random access response listening window of the first random access or after the PDSCH carrying the random access response, and T is the processing time of the PDSCH by the terminal side device. Generally, T is less than 1 millisecond.

[0144] By applying the technical solution provided in the first embodiment, the terminal side device is preconfigured for NCD-SSB candidate resources, and the access network side device detects NCD-SSB from the available candidate resources indicated in the NCD-SSB candidate resources, so that after the random access fails, random access is performed again according to the received NCD-SSB. By configuring NCD-SSB for the current initial downlink BWP and detecting NCD-SSB in the current initial downlink BWP without switching to other downlink BWPs to detect CD-SSB, the power consumption and delay caused by frequent RF switching of the terminal side device are reduced, thereby reducing the resource overhead of the communication system. From the access network side device, the available or unavailable status of the NCD-SSB candidate resources can be indicated by the second information, so it is possible to avoid always sending NCD-SSB, which can save resource overhead.

[0145] The second embodiment of the present application provides another communication processing method for SSB. Figure 4A and 4B As shown, the method includes the following contents.

[0146] 401. The terminal side device receives first configuration information and second configuration information sent by the access network side device, wherein the first configuration information is used to configure a first initial downlink bandwidth part BWP, and the second configuration information is used to configure a second initial downlink BWP; wherein the first initial downlink BWP includes CD-SSB and a paging early indication search space; the second initial downlink BWP is configured with a paging search space but does not include CD-SSB.

[0147] Optionally, the paging advance indication search space is configured on CORESET#0, and the paging search space is configured on the second initial downlink BWP (ie, the initial downlink BWP configured by the SIB).

[0148] Optionally, the first initial downlink BWP is the legacy initial downlink BWP.

[0149] 401 is similar to 301, and the access network side device can send a CD-SSB at the center frequency of a certain carrier, and the terminal side device detects the CD-SSB at the center frequency to achieve downlink time-frequency synchronization and obtains the MIB (used to configure CORESET#0), and then obtains the SIB (for example, SIB1). Optionally, the SIB (for example, SIB1) carries the first configuration information and the second configuration information. Optionally, when the terminal side device is a terminal side device of a reduced capability type, the first downlink BWP is the BWP corresponding to CORESET#0, and the second downlink BWP is the BWP corresponding to the reduced capability type. The first configuration information is used to configure a paging advance indication search space within the bandwidth of CORESET#0, so that the terminal side device monitors the wake-up PDCCH in the paging advance indication search space. The control resource set associated with the paging advance indication search space is CORESET#0, or a CORESET in CORESET#0, such as a common CORESET.

[0150] The second configuration information is used to configure a paging search space for the second initial downlink BWP so that the terminal side device monitors the paging PDCCH after being awakened.

[0151] 402. The terminal side device receives the CD-SSB on the first initial downlink BWP, performs time-frequency synchronization and measurement based on the received CD-SSB, and monitors the wake-up PDCCH in the paging advance indication search space, wherein the wake-up PDCCH carries a paging advance indication, and the paging advance indication is used to indicate whether the terminal side device is awakened to monitor the paging PDCCH at the monitoring timing of the paging PDCCH.

[0152] In 402, the terminal side device may be in an RRC non-connected state. The terminal side device may be instructed by the access network side device through an RRC message to enter the RRC non-connected state from the RRC connected state, wherein the RRC non-connected state includes the RRC idle state and the RRC inactive state. The RRC message here may be an RRC connection release message or an RRC release message.

[0153] In 402 or before 402, the terminal side device may receive the third configuration information sent by the access network side device, and the third configuration information is used to configure the candidate resources of NCD-SSB for the first initial downlink BWP, such as the candidate frequency domain position of NCD-SSB, period and other parameters. The third configuration information may be carried in the RRC signaling used in the RRC connected state (such as the RRC connection release message) or carried in the RRC signaling in the RRC non-connected state (such as SIB1).

[0154] In 402, the terminal side device may first work in the bandwidth of CORESET#0 or other working bandwidth containing CD-SSB (i.e., the first initial downlink BWP) to monitor the wake-up PDCCH. If the wake-up PDCCH is monitored, it is determined whether the terminal side device is awakened according to the paging advance indication carried by the wake-up PDCCH. If not awakened, the terminal side device remains in the current working bandwidth. If awakened, the terminal side device switches the working bandwidth to the second initial downlink BWP configured in 401, so as to monitor the paging PDCCH on the configured paging search space.

[0155] 403. If the paging advance indication indicates that the terminal side device is awakened, the terminal side device wakes up and determines that an NCD-SSB exists on the second initial downlink BWP.

[0156] In 403, if the paging advance indication wakes up the terminal side device, the terminal side device determines that there is NCD-SSB sending on the NCD-SSB candidate resources configured by the third configuration information; accordingly, if the access network side device wakes up the terminal side device through the paging advance indication, the access network side device sends the NCD-SSB on the configured NCD-SSB candidate resources according to the configured frequency domain candidate position and period.

[0157] If the paging advance indication does not wake up the terminal side device, the access network side device does not send the NCD-SSB on the configured NCD-SSB candidate resources, and the terminal side device determines that the NCD-SSB does not exist on the initial downlink BWP, and thus will not receive the NCD-SSB.

[0158] Optionally, after the terminal side device is awakened, it confirms that the NCD-SSB exists on the initial downlink BWP within the effective time of the NCD-SSB. The effective time of the NCD-SSB may also be a time window starting from the receipt of the wake-up PDCCH (for example, a time period starting from the time when the wake-up PDCCH is located to the time when the wake-up PDCCH indicates that there is a listening opportunity for the paging PDCCH as the end) or a time window after the time when the wake-up PDCCH is located. The time window may be configured by the access network side device or predefined by the protocol. Optionally, the effective time here may also adopt the implementation method of the effective duration (or effective time window) in the aforementioned embodiments (for example, Method 1 to Method 5), which will not be repeated here.

[0159] In the above implementation, the paging advance indication indicates that the terminal side device is awakened to determine whether the NCD-SSB is available. It is an implicit determination method, and no explicit indication information is carried in the wake-up PDCCH. In the following method, it is also possible to indicate whether the NCD-SSB is available in an explicit manner. For example, the wake-up PDCCH is also used to indicate whether there is an available NCD-SSB. Optionally, the available NCD-SSB may be located before the listening time of the paging PDCCH arrives, so as to perform measurements based on the available NCD-SSB and thus monitor the paging PDCCH.

[0160] For example, if the wake-up PDCCH indicates that NCD-SSB is available, the terminal side device can receive NCD-SSB at the second initial downlink BWP for measurement. If the wake-up PDCCH indicates that NCD-SSB is unavailable, the terminal side device receives CD-SSB at the first initial downlink BWP for measurement, and then goes to the second initial downlink BWP to listen to the paging PDCCH.

[0161] 404. The terminal side device detects the non-cell defined NCD-SSB on the second initial downlink BWP.

[0162] If the wake-up PDCCH indicates that there is an available NCD-SSB before the monitoring timing of the paging PDCCH, the terminal side device can directly detect the NCD-SSB on the nearest NCD-SSB candidate resource before the monitoring timing of the paging PDCCH.

[0163] 405. The terminal side device monitors the paging PDCCH according to the received NCD-SSB.

[0164] The main purpose of the terminal side device receiving NCD-SSB is measurement, for example, AGC adjustment, time-frequency synchronization or beam measurement (such as beam selection), etc., and then monitoring the paging PDCCH based on the measurement results.

[0165] If the paging advance indication carried by the wake-up PDCCH indicates that the terminal side device is awakened, the terminal side device monitors the paging PDCCH at the monitoring timing of the paging PDCCH;

[0166] If it is determined according to the paging PDCCH that the terminal side device is paged, the terminal side device initiates random access;

[0167] If it is determined according to the paging PDCCH that the terminal side device has not been paged, the terminal side device continues to operate in the RRC non-connected state.

[0168] By applying the technical solution provided in the second aspect of the present application, the terminal side device determines the existence of NCD-SSB only after being awakened and further receives the NCD-SSB, and the access network side device sends the NCD-SSB only after confirming that the terminal side device is awakened, so that the communication system can transmit the NCD-SSB purposefully according to actual needs, thereby reducing the resource overhead of the communication system.

[0169] The third embodiment of the present application provides another communication processing method for SSB. Figure 5A and 5B As shown, the method includes the following contents.

[0170] 501. The terminal side device receives configuration information sent by the access network side device, where the configuration information is used to configure the initial downlink BWP, wherein the initial downlink BWP is configured with a paging advance indication search space and a paging search space, but does not include the synchronization signal-physical broadcast channel block SSB (CD-SSB) of the cell definition CD.

[0171] 501 is similar to 401, the access network side device can send CD-SSB at the center frequency of a certain carrier, and the terminal side device detects the CD-SSB at the center frequency to achieve downlink time-frequency synchronization and obtain MIB, and then obtain SIB. Among them, SIB (for example, SIB1) carries the configuration information, and the configuration information configures the initial downlink BWP. There is no CD-SSB at the frequency domain position where the initial downlink BWP is configured. For the terminal side device of the reduced capability type, the configuration information #1 can configure the initial downlink BWP corresponding to the reduced capability type.

[0172] The configuration information is also used to configure a paging advance indication search space for the terminal side device in the initial downlink BWP, so that the terminal side device monitors the wake-up PDCCH in the paging advance indication search space; and the configuration information is also used to configure a paging search space for the terminal side device in the initial downlink BWP, so that the terminal side device monitors the paging PDCCH after being awakened. Compared with the second embodiment, the configuration information in the third embodiment configures both the paging advance indication search space and the paging search space for the same initial downlink BWP.

[0173] It should be understood that the terminal side device may also be configured with a legacy initial downlink BWP, and the legacy initial downlink BWP includes CD-SSB.

[0174] 502. The terminal side device detects NCD-SSB on the configured NCD-SSB candidate resources before the listening timing of the wake-up PDCCH arrives, wherein the wake-up PDCCH carries a paging advance indication, and the paging advance indication is used to indicate that the terminal side device is awakened to detect the paging PDCCH at the listening timing of the paging PDCCH.

[0175] 503, if the NCD-SSB is detected, the terminal side device determines that the wake-up PDCCH exists in the monitoring opportunity of the wake-up PDCCH. Correspondingly, if the access network side device determines to send the wake-up PDCCH, the NCD-SSB is sent before sending the wake-up PDCCH.

[0176] If the NCD-SSB is not detected, the terminal side device determines that the wake-up PDCCH does not exist at the listening opportunity of the wake-up PDCCH, and thus does not listen to the wake-up PDCCH at the listening opportunity. Accordingly, the access network side device does not send the NCD-SSB before the listening opportunity, and does not send the wake-up PDCCH at the listening opportunity.

[0177] 504. The terminal side device monitors the wake-up PDCCH at the monitoring timing of the wake-up PDCCH on the initial downlink BWP according to the detected NCD-SSB.

[0178] In 502 and 503, the candidate resources of the NCD-SSB may be directly configured by the access network side device through the SIB, or directly predefined by the protocol.

[0179] In 502 and 503, the candidate resource of the NCD-SSB may have an association relationship with the listening opportunity of the wake-up PDCCH. The association relationship may be configured by the access network side device or predefined by the protocol. The terminal side device may detect the NCD-SSB on the candidate resource associated with the listening opportunity of the wake-up PDCCH.

[0180] Optionally, the candidate resources associated with the listening opportunity of the wake-up PDCCH are NCD-SSB candidate resources located within the N SSB cycles closest to the listening opportunity, where N is a positive integer and N can be configured by the access network side device or predefined by the protocol, for example, N is 1.

[0181] Optionally, the NCD-SSB in 502 and 503 is located in a time window before the listening timing of the wake-up PDCCH, wherein the time window is a time period associated with the listening timing of the wake-up PDCCH configured by the access network side device, or the time window is a time period consisting of one or more NCD-SSB cycles closest to the listening timing of the wake-up PDCCH.

[0182] It should be understood that in the embodiments of the present application, the NCD-SSB candidate resources are not necessarily available, that is, the access network side device does not necessarily send NCD-SSB on the NCD-SSB candidate resources. Therefore, the NCD-SSB period actually represents the period of the NCD-SSB candidate resources. Candidate resources appear periodically, but NCD-SSB does not necessarily exist on the candidate resources. Therefore, NCD-SSB does not necessarily appear periodically. In addition, the period of NCD-SSB represents the period of the NCD-SSB burst set, which represents the duration between two adjacent NCD-SSB burst sets, rather than the duration between two adjacent NCD-SSBs actually sent.

[0183] In 504, if the paging advance indication carried by the wake-up PDCCH indicates that the terminal side device is awakened, the terminal side device monitors the paging PDCCH at the listening timing of the paging PDCCH; if it is determined according to the paging PDCCH that the terminal side device is paged, the terminal side device initiates random access; if it is determined according to the paging PDCCH that the terminal side device is not paged, the terminal side device continues to work in the RRC non-connected state.

[0184] Optionally, the wake-up PDCCH is also used to indicate whether there are other available NCD-SSBs. The other NCD-SSBs and the NCD-SSB candidate resources in 502 and 503 belong to the same periodic resource, that is, the other NCD-SSBs and the NCD-SSBs in 502 and 503 belong to different SSB burst sets in the same periodic NCD-SSB.

[0185] The wake-up PDCCH may specifically indicate whether the NCD-SSB is available within a time window starting from the time when the wake-up PDCCH is located and ending with the listening opportunity of the paging PDCCH indicated by the wake-up PDCCH. Optionally, the effective time of the NCD-SSB is the time window starting from the time when the wake-up PDCCH is received or the time window after the time when the wake-up PDCCH is located. The time window may be configured by the access network side device or predefined by the protocol.

[0186] Optionally, the wake-up PDCCH is also used to indicate whether there are other available NCD-SSBs within the effective duration, wherein the effective duration may also be implemented in the same manner as the effective duration (or effective time window) in the previous embodiments (for example, Method 1 to Method 5), which will not be repeated here.

[0187] Optionally, the available status of other NCD-SSBs can also be implicitly determined based on whether the wake-up PDCCH indicates that the terminal side device monitors the paging PDCCH. For example, if the wake-up PDCCH indicates that the terminal side device monitors the paging PDCCH, there are other NCD-SSBs within the effective duration. If the wake-up PDCCH indicates that the terminal side device does not monitor the paging PDCCH, there are no other NCD-SSBs or there are no other NCD-SSBs within the effective duration. The implementation method of the effective duration is similar to the above and will not be repeated.

[0188] It should be noted that, in various embodiments of the present invention, Figure 5CAs shown, the terminal side device detects NCD-SSB on the initial downlink BWP, and can implement radio resource management RRM measurement (also known as mobility measurement). In order to ensure the performance of RRM measurement, it can be configured or the protocol defines that NCD-SSB candidate resources at certain times are definitely available, and there is no need for blind detection by the terminal side device, nor is there a need to determine the available status of NCD-SSB based on the detection result of the wake-up PDCCH.

[0189] Optionally, NCD-SSB candidate resources on Q NCD-SSB candidate resource periods in each P NCD-SSB candidate resource periods are available. Wherein, P and Q are positive integers, which can be configured or predefined by the protocol. Wherein the Q NCD-SSB candidate resource periods may be consecutive Q NCD-SSB candidate resource periods, and the Q NCD-SSB candidate resource periods may be the first Q, the last Q, or the middle Q periods in the P periods.

[0190] Optionally, NCD-SSB is available in any time window in the periodic time window, wherein the duration of any time window in the periodic time window is less than the period of the periodic time window, and the periodic time window may be configured or predefined by the protocol. For example, the period of the periodic time window is equal to a multiple of the paging DRX cycle or the system information modification cycle, and the duration of any time window in the periodic time window is equal to a multiple of the NCD-SSB cycle.

[0191] For example, NCD-SSB may be sent in at least one of the following situations: (1) in the first SSB cycle of each paging DRX cycle; (2) in the first SSB cycle of every M paging DRX cycles, where M may be a positive integer or a decimal, such as 0.5, 1.5, etc. Therefore, if the terminal side device does not detect NCD-SSB on the initial downlink BWP before the listening opportunity for waking up the PDCCH arrives or within the above time window, the terminal side device may detect NCD-SSB in the time domain position indicated by at least one of the above situations to perform RRM measurement, thereby ensuring the performance of RRM measurement. The paging DRX cycle may be a default paging DRX cycle.

[0192] It should be understood that in the present application, the monitoring time of the terminal side device monitoring the paging PDCCH is the monitoring time determined by the terminal side device and belongs to itself. The wake-up PDCCH is used to indicate whether to monitor the paging PDCCH at the monitoring time of the paging PDCCH. Here, the monitoring time of the wake-up PDCCH and the monitoring time of the paging PDCCH are associated monitoring times configured or defined by the protocol, that is, the wake-up PDCCH is only used to indicate whether there is a paging PDCCH at the associated paging PDCCH monitoring time.

[0193] By applying the technical solution provided in the third embodiment of the present application, the terminal side device first detects the existence of NCD-SSB before the listening opportunity for waking up PDCCH arrives, so as to confirm whether to listen to and wake up PDCCH; and the access network side device confirms that the terminal side device is awakened before sending the NCD-SSB before the listening opportunity for waking up PDCCH, so that the communication system can transmit NCD-SSB purposefully according to actual needs, thereby reducing the resource overhead of the communication system.

[0194] A fourth embodiment of the present application provides a communication processing device 600, such as Figure 6 As shown in the schematic diagram of the unit structure of the communication processing device, the communication processing device 600 includes a receiving unit 601 and a sending unit 602.

[0195] The communication processing device 600 provided in the fourth embodiment of the present application may be the terminal side device or the access network side device in the aforementioned method embodiment. Correspondingly, the communication processing device 600 also includes a processing unit 603. Specifically, the receiving unit 601 is used to perform the receiving action of the terminal side device or the access network side device in the aforementioned embodiments, the sending unit 602 is used to perform the sending action of the terminal side device or the access network side device, and the processing unit 603 is used to perform the determination, acquisition and other processing actions of the terminal side device or the access network side device. For details, please refer to the contents described in the aforementioned method embodiments.

[0196] In the specific hardware implementation, such as Figure 7 In the hardware structure diagram of the communication processing device shown in FIG. 1 , the function of the receiving unit 601 can be implemented by the receiver 701, the sending unit 602 can be implemented by the transmitter 702, and the function of the processing unit 603 can be implemented by the processor 703. The communication processing device can also include various electronic circuits, such as a bus 704, a memory 705, and a communication interface 706. The memory can contain instruction codes, which are used to implement the method steps of the aforementioned method embodiment when called by the processor 703.

[0197] The communication interface may be a wired communication interface, a wireless communication interface or a combination thereof, wherein the wired communication interface may be, for example, an Ethernet interface. The Ethernet interface may be an optical interface, an electrical interface or a combination thereof; and the wireless communication interface may be a wireless local area network interface.

[0198] The bus may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc.

[0199] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing a computer program.

[0200] The present application is described with reference to the flowcharts and / or block diagrams of the methods, apparatus (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0201] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0202] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

Claims

1. A communication processing method for SSB, characterized in that: include: The terminal side device receives configuration information sent by the access network side device, where the configuration information is used to configure an initial downlink bandwidth part BWP, wherein the initial downlink BWP is configured with a random access search space, but does not include a synchronization signal-physical broadcast channel block SSB (CD-SSB) of a cell definition CD; The terminal side device receives first information sent by the access network side device, where the first information configures at least one non-cell defined NCD-SSB candidate resource on the initial downlink BWP; The terminal side device initiates a first random access, and monitors a physical downlink control channel PDCCH of a random access response scheduling the first random access in the random access search space; The terminal side device obtains second information from the access network side device; wherein the second information indicates an available NCD-SSB candidate resource among the at least one NCD-SSB candidate resource; The terminal side device receives NCD-SSB on the available NCD-SSB candidate resources, and initiates a second random access according to the received NCD-SSB after the first random access fails.

2. The method according to claim 1, characterized in that The second information is carried in a master information block MIB or a system information block SIB sent by the access network side device.

3. The method according to claim 1, characterized in that The second information is carried in a physical downlink control channel PDSCH that carries a random access response of the first random access, or the second information is carried in a PDCCH that schedules the PDSCH.

4. The method according to claim 1, characterized in that The terminal side device obtains the second information from the access network side device, including: The terminal side device receives a paging PDCCH, wherein the paging PDCCH carries the second information or the PDSCH scheduled by the paging PDCCH carries the second information; The terminal side device initiating the first random access includes: when it is determined that the terminal side device is paged according to the paging PDCCH, the terminal side device initiating the first random access.

5. The method according to claim 1, characterized in that The terminal side device acquires the second information from the access network side device, including: The terminal side device receives a wake-up PDCCH; wherein the wake-up PDCCH carries the second information and a paging advance indication, and the paging advance indication is used to indicate whether the terminal side device is awakened to monitor the paging PDCCH at the monitoring timing of the paging PDCCH; The terminal side device initiating the first random access includes: When it is determined that the terminal side device is paged according to the paging PDCCH, the terminal side device initiates the first random access.

6. A communication processing method for SSB, characterized in that: The method comprises: The terminal side device receives first configuration information and second configuration information sent by the access network side device, wherein the first configuration information is used to configure a first initial downlink bandwidth part BWP, and the second configuration information is used to configure a second initial downlink BWP; wherein the first initial downlink BWP includes a synchronization signal-physical broadcast channel block (CD-SSB) of a cell definition CD and a configured paging advance indication search space; the second initial downlink BWP is configured with a paging search space but does not include the CD-SSB; The terminal side device receives the CD-SSB on the first initial downlink BWP, and monitors the wake-up PDCCH in the paging advance indication search space according to the received CD-SSB, wherein the wake-up PDCCH carries a paging advance indication, and the paging advance indication is used to indicate whether the terminal side device is awakened to monitor the paging PDCCH at the monitoring timing of the paging PDCCH in the paging search space; If the paging advance indication indicates that the terminal side device is awakened, the terminal side device wakes up and determines that there is a non-cell defined NCD-SSB on the second initial downlink BWP; The terminal side device receives the NCD-SSB on the second initial downlink BWP; The terminal side device monitors the paging PDCCH in the paging search space according to the received NCD-SSB.

7. A communication processing method for SSB, characterized in that: The method comprises: The terminal side device receives configuration information sent by the access network side device, where the configuration information is used to configure an initial downlink bandwidth part BWP, wherein the initial downlink BWP is configured with a paging advance indication search space and a paging search space, but does not include a synchronization signal-physical broadcast channel block SSB (CD-SSB) of a cell definition CD; The terminal side device detects NCD-SSB on the configured non-cell defined NCD-SSB candidate resources before the listening opportunity of waking up PDCCH on the paging advance indication search space arrives, wherein the wake-up PDCCH carries the paging advance indication, and the paging advance indication is used to indicate whether the terminal side device is awakened to listen to the paging PDCCH at the listening opportunity of the paging PDCCH; If the NCD-SSB is detected, the terminal side device monitors the wake-up PDCCH at the monitoring timing of the wake-up PDCCH.

8. The method according to claim 7, characterized in that The candidate resources of the NCD-SSB are located within a time window before the monitoring timing of the wake-up PDCCH, wherein the time window is a time period associated with the monitoring timing of the wake-up PDCCH configured by the access network side device, or the time window is a time period consisting of one or more NCD-SSB candidate resource periods closest to the monitoring timing of the wake-up PDCCH.

9. The method according to claim 7 or 8, characterized in that The wake-up PDCCH is also used to indicate whether there are other available NCD-SSBs; wherein the candidate resources where the other NCD-SSBs are located and the candidate resources where the NCD-SSB is located belong to the same periodic resource.

10. The method according to claim 7 or 8, characterized in that The method further comprises: If the NCD-SSB is not detected, the terminal side device determines not to monitor the wake-up PDCCH.

11. A communication processing method for SSB, characterized in that: include: The access network side device sends configuration information to the terminal side device, where the configuration information is used to configure an initial downlink bandwidth part BWP, wherein the initial downlink BWP is configured with a random access search space, but does not include a synchronization signal-physical broadcast channel block SSB (CD-SSB) of a cell definition CD; The access network side device sends first information to the terminal side device, where the first information configures at least one non-cell defined NCD-SSB candidate resource on the initial downlink BWP; The access network side device sends second information to the terminal side device, where the second information indicates an available NCD-SSB candidate resource in the at least one NCD-SSB candidate resource; The access network side device sends NCD-SSB on the available NCD-SSB candidate resources.

12. The method according to claim 11, characterized in that The second information is carried in a master information block MIB or a system information block SIB sent by the access network side device.

13. The method according to claim 11, characterized in that The method further comprises: The access network side device receives a random access preamble code sent by the terminal side device for a first random access; The access network side device sending the second information to the terminal side device includes: The access network side device sends a PDCCH that schedules a PDSCH to the terminal side device, wherein the PDSCH carries a random access response of the first random access; and the second information is carried in the PDCCH or in the PDSCH.

14. The method according to claim 11, characterized in that The access network side device sends second information to the terminal side device, including: The access network side device sends a paging PDCCH to the terminal side device, wherein the paging PDCCH carries the second information or the PDSCH scheduled by the paging PDCCH carries the second information.

15. The method according to claim 11, characterized in that The access network side device sending the second information to the terminal side device includes: The access network side device sends a wake-up PDCCH to the terminal side device, wherein the wake-up PDCCH carries the second information and a paging advance indication, and the paging advance indication is used to indicate whether the terminal side device is awakened to monitor the paging PDCCH at the monitoring timing of the paging PDCCH.

16. A communication processing method for SSB, characterized in that: The method comprises: The access network side device sends first configuration information and second configuration information to the terminal side device, wherein the first configuration information is used to configure a first initial downlink bandwidth part BWP, and the second configuration information is used to configure a second initial downlink BWP, wherein the first initial downlink BWP includes a synchronization signal-physical broadcast channel block (CD-SSB) of a cell definition CD and a configured paging advance indication search space, and the second initial downlink BWP is configured with a paging search space but does not include the CD-SSB; The access network side device sends a wake-up PDCCH in the paging advance indication search space, wherein the wake-up PDCCH carries a paging advance indication, and the paging advance indication is used to indicate whether the terminal side device is awakened to monitor the paging PDCCH at the monitoring timing of the paging PDCCH; In a case where the access network side device determines to wake up the terminal side device through the wake-up PDCCH, the access network side device sends a non-cell defined NCD-SSB on the second initial downlink BWP and sends the paging PDCCH in the paging search space.

17. The method according to claim 16, characterized in that The method further comprises: In a case where the access network side device determines not to wake up the terminal side device by waking up the PDCCH, the access network side device determines not to send the NCD-SSB on the second initial downlink BWP.

18. A communication processing method for SSB, characterized in that: The method comprises: The access network side device sends configuration information to the terminal side device, where the configuration information is used to configure an initial downlink bandwidth part BWP, wherein the initial downlink BWP is configured with a paging advance indication search space and a paging search space, but does not include a synchronization signal-physical broadcast channel block SSB (CD-SSB) of a cell definition CD; The access network side device determines whether to send the wake-up PDCCH at the listening time of the wake-up PDCCH on the paging advance indication search space; wherein the wake-up PDCCH carries the paging advance indication, and the paging advance indication is used to indicate whether the terminal side device is awakened to listen to the paging PDCCH at the listening time of the paging PDCCH; If it is determined to send the wake-up PDCCH at the monitoring timing of the wake-up PDCCH, the access network side device sends a non-cell definition NCD-SSB before the monitoring timing of the wake-up PDCCH arrives; The access network side device sends the wake-up PDCCH at the monitoring timing of the wake-up PDCCH.

19. The method according to claim 18, characterized in that The method further comprises: If it is determined not to send the wake-up PDCCH at the monitoring timing of the wake-up PDCCH, the access network side device determines not to send the NCD-SSB before the monitoring timing of the wake-up PDCCH arrives.

20. The method according to claim 18 or 19, characterized in that The NCD-SSB is located in a time window before the monitoring timing of the wake-up PDCCH, wherein the time window is a time period associated with the monitoring timing of the wake-up PDCCH configured by the access network side device, or the time window is a time period consisting of one or more NCD-SSB cycles closest to the monitoring timing of the wake-up PDCCH.

21. The method according to claim 18 or 19, characterized in that The wake-up PDCCH is also used to indicate whether there are other available NCD-SSBs; wherein the candidate resources where the other NCD-SSBs are located and the candidate resources where the NCD-SSB is located belong to the same periodic resource.

22. A communication processing device, characterized in that: The communication processing device comprises a processor and a memory storing a computer program, wherein the computer program is called by the processor so that the communication processing device implements the method according to any one of claims 1 to 10.

23. A communication processing device, characterized in that: It comprises a processor and a memory storing a computer program, wherein the computer program is called by the processor so that the communication processing device implements the method according to any one of claims 11 to 21.

24. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and the computer program is called by a computer to implement the method according to any one of claims 1 to 21.

25. A computer program product, characterized in that The computer program product comprises a computer program for implementing the method according to any one of claims 1 to 21 when called by a computer.

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