Communication processing method and device, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a communication processing method and device, electronic equipment and a storage medium. The method comprises the following steps: determining a first cell to be accessed by a first terminal; obtaining first information of the first cell, the first information comprising at least one of the following items: first parameter information applied to an initial downlink bandwidth part (BWP) of the terminal with reduced capability, and second parameter information applied to an initial uplink BWP of the terminal with reduced capability; and under the condition that the first terminal is the terminal with reduced capability, randomly accessing the first cell according to the initial downlink BWP indicated by the first parameter information and / or the initial uplink BWP indicated by the second parameter information. Therefore, the embodiments of the present application can solve the problem in the prior art that the RedCap UE supports a narrower bandwidth and shares the same initial uplink and downlink BWP resources with non-RedCap UE, resulting in congestion caused by excessive users aggregated in the same narrowband resource.

Description

Technical Field

[0001] The present invention relates to the field of mobile communication technology, and in particular to a communication processing method, device, electronic equipment and storage medium. Background Art

[0002] Reduced Capability (RedCap) technology is a key component of lightweight 5G. As a lightweight 5G technology, RedCap, in Release 17 (R17), strikes a balance between 5G Enhanced Mobile Broadband (eMBB) and Long Term Evolution (LTE) Terminal Capability Level 1 (Cat1 / 1bis), achieving a balance between cost and functionality.

[0003] RedCap User Equipment (UE) is a lightweight IoT terminal technology defined in the Release 17 standard. It aims to fill the gap in medium- and high-speed IoT applications between 5G eMBB and Low-Power Wide Area Network (LPWAN), and achieve low cost, low power consumption, and miniaturized design through streamlined capabilities.

[0004] However, currently RedCap UEs support narrower bandwidths and share the same initial uplink and downlink bandwidth part (BWP) resources with non-RedCap UEs, which may result in too many users congregating in the same narrowband resources and causing congestion. Summary of the Invention

[0005] The embodiments of the present application provide a communication processing method, apparatus, electronic device, and storage medium to solve the problem in the prior art that RedCap UE supports a narrow bandwidth and shares the same initial uplink and downlink BWP resources with non-RedCap UE, which may cause too many users to gather in the same narrowband resource and cause congestion.

[0006] In a first aspect, an embodiment of the present application provides a communication processing method, applied to a first terminal, the method comprising:

[0007] Determining a first cell to be accessed by the first terminal;

[0008] Acquiring first information of the first cell, wherein the first information includes at least one of the following: first parameter information of an initial downlink bandwidth part BWP applied to the reduced capability terminal, and second parameter information of an initial uplink BWP applied to the reduced capability terminal, the initial downlink BWP applied to the reduced capability terminal is different from the initial downlink BWP applied to the non-reduced capability terminal, and / or the initial uplink BWP applied to the reduced capability terminal is different from the initial uplink BWP applied to the non-reduced capability terminal;

[0009] In a case where the first terminal is a reduced-capability terminal, the first cell is randomly accessed according to the initial downlink BWP indicated by the first parameter information and / or the initial uplink BWP indicated by the second parameter information.

[0010] In a second aspect, an embodiment of the present application further provides a communication processing method, applied to a network-side device, the method comprising:

[0011] Sending first information, wherein the first information includes at least one of the following: first parameter information of an initial downlink bandwidth part (BWP) applied to the terminal with reduced capability, and second parameter information of an initial uplink BWP applied to the terminal with reduced capability;

[0012] The initial downlink BWP applied to the reduced capability terminal is different from the initial downlink BWP applied to the non-reduced capability terminal, and / or the initial uplink BWP applied to the reduced capability terminal is different from the initial uplink BWP applied to the non-reduced capability terminal.

[0013] In a third aspect, an embodiment of the present application provides a communication processing device, applied to a first terminal, the device comprising:

[0014] A first determining module, configured to determine a first cell to be accessed by the first terminal;

[0015] an acquiring module, configured to acquire first information of the first cell, wherein the first information includes at least one of the following: first parameter information of an initial downlink bandwidth portion BWP applied to the reduced capability terminal, second parameter information of an initial uplink BWP applied to the reduced capability terminal, the initial downlink BWP applied to the reduced capability terminal being different from the initial downlink BWP applied to the non-reduced capability terminal, and / or the initial uplink BWP applied to the reduced capability terminal being different from the initial uplink BWP applied to the non-reduced capability terminal;

[0016] The random access module is configured to randomly access the first cell according to the initial downlink BWP indicated by the first parameter information and / or the initial uplink BWP indicated by the second parameter information when the first terminal is a reduced-capability terminal.

[0017] In a fourth aspect, an embodiment of the present application provides a communication processing device, applied to a network-side device, the device comprising:

[0018] A first transmission module is configured to send first information, wherein the first information includes at least one of the following: first parameter information of an initial downlink bandwidth part (BWP) applied to the terminal with reduced capability, and second parameter information of an initial uplink BWP applied to the terminal with reduced capability;

[0019] The initial downlink BWP applied to the reduced capability terminal is different from the initial downlink BWP applied to the non-reduced capability terminal, and / or the initial uplink BWP applied to the reduced capability terminal is different from the initial uplink BWP applied to the non-reduced capability terminal.

[0020] In a fifth aspect, an embodiment of the present application provides a communication device, including a memory, a transceiver, and a processor:

[0021] A memory for storing a computer program; a transceiver for sending and receiving data under the control of the processor; a processor for reading the computer program in the memory and executing the communication processing method described in the first aspect above, or the communication processing method described in the second aspect above.

[0022] In the sixth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the communication processing method described in the first aspect is implemented, or the communication processing method described in the second aspect is implemented.

[0023] In a seventh aspect, an embodiment of the present application further provides a communication processing system, comprising a first terminal and a network side device, wherein the first terminal is used to execute the communication processing method described in the first aspect above, and the network side device is used to execute the communication processing method described in the second aspect above.

[0024] In an embodiment of the present application, the first terminal is able to determine the first cell it wants to access and obtain first information of the first cell, wherein the first information includes at least one of the following: first parameter information of the initial downlink bandwidth part BWP applied to the terminal with reduced capability, second parameter information of the initial uplink BWP applied to the terminal with reduced capability, the initial downlink BWP applied to the terminal with reduced capability is different from the initial downlink BWP applied to the terminal with non-reduced capability, and / or the initial uplink BWP applied to the terminal with reduced capability is different from the initial uplink BWP applied to the terminal with non-reduced capability; thereby, when the first terminal is a terminal with reduced capability, it can randomly access the first cell according to the initial downlink BWP indicated by the first parameter information and / or the initial uplink BWP indicated by the second parameter information.

[0025] It can be seen that in some embodiments of the present application, an independent initial downlink BWP (i.e., a BWP different from the initial downlink BWP used by the non-reduced capability terminal) and / or an independent initial uplink BWP (i.e., a BWP different from the initial uplink BWP used by the non-reduced capability terminal) can be configured for the reduced capability terminal. In this way, the reduced capability terminal and the non-reduced capability terminal can perform random access on their respective initial BWPs, thereby alleviating (or avoiding) the congestion caused by the reduced capability terminals and the non-reduced capability terminals gathering in the same narrowband resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 One of the flow charts of the communication processing method provided in the embodiment of the present application;

[0028] Figure 2 The second flowchart of the communication processing method provided in the embodiment of the present application;

[0029] Figure 3 This is a schematic diagram of uplink resources of RedCap UE and non-RedCap UE in a specific embodiment of the present application;

[0030] Figure 4 This is a flowchart of whether RedCap UE accesses through an independent initial BWP in a specific embodiment of this application;

[0031] Figure 5 This is a schematic diagram of the overall process of RedCap UE communication in a specific embodiment of this application;

[0032] Figure 6 This is a schematic diagram of a multi-BWP configuration in a specific embodiment of the present application;

[0033] Figure 7 This is one of the structural block diagrams of the communication processing device provided in an embodiment of the present application;

[0034] Figure 8 This is a second structural block diagram of the communication processing device provided in an embodiment of the present application;

[0035] Figure 9 This is a structural block diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0036] In the embodiments of this application, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0037] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0038] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0039] The embodiments of the present application provide a communication processing method, device, electronic device and storage medium to solve the problem in the prior art that the bandwidth supported by RedCap UE is relatively narrow and shares the same initial uplink and downlink BWP resources with non-RedCap UE, which may cause too many users to gather in the same narrowband resource and cause congestion.

[0040] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0041] Figure 1 A flow chart of a communication processing method provided in an embodiment of the present application is shown. The communication processing method can be applied to a first terminal. The method may include the following steps 101 to 103:

[0042] Step 101: Determine a first cell to be accessed by a first terminal.

[0043] Optionally, determining the first cell to be accessed by the first terminal includes: receiving multiple synchronization signal blocks (SSBs) sent by a network-side device; selecting a first SSB with the best signal quality among the multiple synchronization signal blocks (SSBs); and determining the cell corresponding to the first SSB as the first cell to be accessed. That is, in some embodiments, after the first terminal is powered on, it can scan across the entire frequency band to find a suitable cell (i.e., receive SSBs sent by the network and find the cell corresponding to the SSB with the strongest signal), and achieve symbol synchronization and frame synchronization through the SSB signal.

[0044] Alternatively, optionally, determining the first cell to be accessed by the first terminal includes:

[0045] Receive multiple synchronization signal blocks (SSBs) sent by network-side devices;

[0046] Selecting a first SSB with the best signal quality among the plurality of synchronization signal blocks SSB;

[0047] Obtain second information of the cell corresponding to the first SSB, and if the second information meets the first condition and the first terminal is a terminal with reduced capability, determine that the cell corresponding to the first SSB is the first cell to be accessed by the first terminal;

[0048] The first condition includes at least one of the following:

[0049] The second information includes first indication information, and the first indication information is used to indicate that a terminal with reduced capability of a single antenna is allowed to access; (the first indication information may be expressed as: cellBarredRedCap1Rx);

[0050] The second information includes second indication information, and the second indication information is used to indicate that a terminal with reduced capability of dual antennas is allowed to access; (the second indication information may be expressed as: cellBarredRedCap2Rx);

[0051] The second information includes third indication information, and the third indication information is used to indicate that a terminal with reduced capability supporting half-duplex is allowed to access; (the third indication information may be expressed as: halfDuplexRedCapAllowed);

[0052] The second information includes fourth indication information, wherein the fourth indication information is used to indicate that when the cell is in a prohibited state, terminals with reduced capabilities are allowed to select or reselect the cell after the first time; (the fourth indication information can be expressed as: intraFreqReselectionRedCap), that is, if intraFreqReselectionRedCap does not appear in the second information, it means that RedCap terminals are prohibited from accessing the cell.

[0053] Optionally, the fourth indication information is also used to indicate a method for searching for other accessible neighboring cells in the same frequency band, so that the terminal can search for other accessible cells.

[0054] It can be seen that in some embodiments, after the first terminal is turned on, it scans within the entire frequency band to find a suitable cell (i.e., receives the SSB sent by the network side, and finds the cell corresponding to the SSB with the strongest signal). After achieving symbol synchronization and frame synchronization through the SSB signal, if the first terminal is a terminal with reduced capability, it can further determine whether the cell allows the first terminal to access based on the second information of the cell. Only when the cell allows the first terminal to access, the cell will be used as the first cell to be accessed by the first terminal, thereby further improving the success rate of random access by the first terminal.

[0055] It can be understood that if the second information of the cell corresponding to the first SSB with the best signal quality selected by the first terminal does not meet the above-mentioned first condition (that is, the cell corresponding to the first SSB with the best signal quality selected by the first terminal does not allow terminals with reduced capabilities to access), the first terminal can reselect a second SSB with the best signal quality from the multiple SSBs it receives except the first SSB, so as to determine whether the second information of the cell corresponding to the second SSB meets the above-mentioned first condition, and if so, the cell corresponding to the second SSB can be determined as the first cell to be accessed by the first terminal.

[0056] It should be noted that the above signal quality can be represented by Reference Signal Received Power (RSRP), and the best signal quality can be understood as the maximum RSRP.

[0057] Optionally, SIB1 includes the above-mentioned second information; that is, it can be understood that at least one of the above-mentioned first indication information, second indication information, third indication information, and fourth indication information is included in SIB1. In some embodiments, after the first terminal selects the first SSB with the best signal quality, it can read the physical broadcast channel (PBCH) of the cell corresponding to the first SSB to obtain basic system information of the cell, which includes SIB1, so that the first terminal can determine whether the cell allows terminals with reduced capabilities to access based on at least one of the above-mentioned first indication information, second indication information, third indication information, and fourth indication information in SIB1.

[0058] Step 102: Obtain first information of the first cell.

[0059] The first information includes at least one of the following: first parameter information of an initial downlink bandwidth part BWP applied to the terminal with reduced capability, second parameter information of an initial uplink BWP applied to the terminal with reduced capability, the initial downlink BWP applied to the terminal with reduced capability is different from the initial downlink BWP applied to the terminal with non-reduced capability, and / or the initial uplink BWP applied to the terminal with reduced capability is different from the initial uplink BWP applied to the terminal with non-reduced capability.

[0060] That is, an independent initial downlink BWP (i.e., different from the initial downlink BWP used by non-reduced capability terminals) and / or an independent initial uplink BWP (i.e., different from the initial uplink BWP used by non-reduced capability terminals) can be configured for the reduced capability terminals.

[0061] Optionally, the independent initial downlink BWP may include the cell-defined SSB (Cell-Defining SSB, CD-SSB) / CORESET 0; or, the independent initial downlink BWP may not include CD-SSB / CORESET 0; wherein, CORESET0 represents a dedicated control channel resource area (i.e., a resource set for transmitting CD-SSB) used for receiving scheduling critical system information (SIB1) during the initial access phase of the UE, that is, CORESET 0 provides initial control channel resources for non-accessed UEs to realize blind detection and decoding of SIB1.

[0062] Among them, the independent downlink BWP includes CD-SSB / CORESET 0, which means that the UE can obtain SIB1 scheduling information through CD-SSB / CORESET0.

[0063] In addition, when the independent initial downlink BWP may not include CD-SSB / CORESET 0, it is necessary to configure a non-cell-defining SSB (NCD-SSB) specifically for the UE as an alternative measurement source; in this way, the UE obtains SIB1 scheduling information through the NCD-SSB.

[0064] Step 103: When the first terminal is a reduced-capability terminal, randomly access the first cell according to the initial downlink BWP indicated by the first parameter information and / or the initial uplink BWP indicated by the second parameter information.

[0065] As can be seen from step 103, in some embodiments, if an independent initial uplink BWP is configured for the reduced capability terminal but an independent initial downlink BWP is not configured, the reduced capability terminal can use the independent initial uplink BWP and the initial downlink BWP shared with the non-reduced capability terminal for random access.

[0066] Alternatively, in some embodiments, if an independent initial downlink BWP is configured for the reduced capability terminal but an independent initial uplink BWP is not configured, the reduced capability terminal may use the independent initial downlink BWP and the initial uplink BWP shared with the non-reduced capability terminal for random access.

[0067] Alternatively, in some embodiments, if an independent initial uplink BWP and an independent initial downlink BWP are configured for the reduced capability terminal, the reduced capability terminal may use the independent initial uplink BWP and the independent initial downlink BWP for random access.

[0068] It can be seen from the above steps 101 to 103 that in an embodiment of the present application, the first terminal can determine the first cell it wants to access and obtain first information of the first cell, wherein the first information includes at least one of the following: first parameter information of the initial downlink bandwidth part BWP applied to the terminal with reduced capability, second parameter information of the initial uplink BWP applied to the terminal with reduced capability, the initial downlink BWP applied to the terminal with reduced capability is different from the initial downlink BWP applied to the terminal with non-reduced capability, and / or the initial uplink BWP applied to the terminal with reduced capability is different from the initial uplink BWP applied to the terminal with non-reduced capability; thereby, when the first terminal is a terminal with reduced capability, it can randomly access the first cell according to the initial downlink BWP indicated by the first parameter information and / or the initial uplink BWP indicated by the second parameter information.

[0069] It can be seen that in some embodiments of the present application, an independent initial downlink BWP (i.e., a BWP different from the initial downlink BWP used by the non-reduced capability terminal) and / or an independent initial uplink BWP (i.e., a BWP different from the initial uplink BWP used by the non-reduced capability terminal) can be configured for the reduced capability terminal. In this way, the reduced capability terminal and the non-reduced capability terminal can perform random access on their respective initial BWPs, thereby alleviating (or avoiding) the congestion caused by the reduced capability terminals and the non-reduced capability terminals gathering in the same narrowband resources.

[0070] Optionally, when the first information includes the first parameter information, obtaining the first parameter information includes:

[0071] receiving a physical broadcast channel (PBCH) of the first cell;

[0072] The first parameter information is read in the PBCH.

[0073] It can be seen from this that the first parameter information of the initial downlink BWP applied to the terminal with reduced capability can be carried in the PBCH.

[0074] Optionally, the PBCH may also include an initial downlink BWP applied to non-reduced capability terminals. For example, in some embodiments, the PBCH carries parameter information of the initial downlink BWP applied to the reduced capability terminal and the initial downlink BWP applied to the non-reduced capability terminal. After receiving the PBCH, the reduced capability terminal may use the initial downlink BWP applied to the reduced capability terminal for random access; and after receiving the PBCH, the non-reduced capability terminal may use the initial downlink BWP applied to the non-reduced capability terminal for random access.

[0075] Optionally, when the first information includes the first parameter information and the second parameter information, acquiring the second parameter information includes:

[0076] monitoring a physical downlink control channel (PDCCH) of the first cell according to the initial downlink BWP indicated by the first parameter information;

[0077] Parameter information of the granted initial uplink BWP indicated in the monitored PDCCH is obtained, and determined as the second parameter information.

[0078] From this, it can be seen that if an independent initial downlink BWP is configured for the terminal with reduced capability, the terminal with reduced capability can monitor the PDCCH on the BWP to obtain the initial uplink BWP permitted in the monitored PDCCH. The initial uplink BWP is: the independent initial uplink BWP configured for the terminal with reduced capability.

[0079] Optionally, the PDCCH may also include an initial uplink BWP for non-reduced capability terminals. For example, in some embodiments, the PDCCH may include parameter information regarding the initial uplink BWP for the reduced capability terminal and the initial uplink BWP for the non-reduced capability terminal. Upon receiving the PDCCH, the reduced capability terminal may use the initial uplink BWP for the reduced capability terminal for random access; and upon receiving the PDCCH, the non-reduced capability terminal may use the initial uplink BWP for the non-reduced capability terminal for random access.

[0080] Optionally, when the first information does not include the first parameter information but includes the second parameter information, obtaining the second parameter information includes:

[0081] Monitoring a physical downlink control channel (PDCCH) of the first cell according to an initial downlink BWP shared with a non-reduced capability terminal;

[0082] Parameter information of the granted initial uplink BWP indicated in the monitored PDCCH is obtained, and determined as the second parameter information.

[0083] Optionally, the randomly accessing the first cell includes:

[0084] Sending a random access related message according to at least one of the following A-1 to A-2:

[0085] Item A-1: ​​Pilot sequences dedicated to terminals with reduced capabilities;

[0086] Item A-2: Random access opportunity dedicated to terminals with reduced capabilities;

[0087] Item A-3: Specific logical channel identifier (LCID).

[0088] If the random access-related message sent by the reduced-capability terminal uses at least one of A-1 to A-3 above, then after receiving the message, the network-side device can identify whether the terminal sending the message is a reduced-capability terminal based on at least one of A-1 to A-3 above used in the message. It can be seen that in some embodiments of the present application, the network-side device can identify whether the terminal performing the random access procedure is a reduced-capability terminal as early as possible during the random access process.

[0089] Optionally, the random access related message includes a four-step random access related message or a two-step random access related message.

[0090] In some embodiments, a physical random access channel (PRACH) pilot sequence dedicated to RedCap UE can be configured in SIB1. In this way, during the random access process, the network side device can identify the RedCap UE by detecting the dedicated PRACH pilot sequence used by the random access request message (MSG1) / message A (MSGA).

[0091] Alternatively, in some embodiments, a RedCap UE-specific PRACH opportunity may also be configured in SIB1, so that the network-side device identifies the RedCap UE by detecting the dedicated PRACH opportunity where MSG1 / MSGA is located.

[0092] Alternatively, in some embodiments, during the random access process, the RedCap UE needs to use a specific LCID identifier (such as the identifier of the Common Control Channel (CCCH)) to send an uplink transmission message (MSG3) / MSGA, and the network side device can identify the RedCap UE by the LCID used by the RedCap UE.

[0093] Optionally, the method further includes:

[0094] After randomly accessing the first cell, receiving third information sent by a network-side device, wherein the third information includes: parameter information of multiple dedicated uplink BWPs and parameter information of multiple dedicated downlink BWPs;

[0095] receiving fourth information sent by the network-side device, wherein the fourth information is used to instruct activation of one of the multiple dedicated uplink BWPs and activation of one of the multiple dedicated downlink BWPs;

[0096] Data transmission is performed according to the parameter information of the dedicated uplink BWP activated as indicated by the fourth information and the parameter information of the dedicated downlink BWP activated as indicated by the fourth information.

[0097] Optionally, the parameter information of the BWP includes at least one of bandwidth, center frequency, subcarrier spacing, and time slot format.

[0098] Among them, the network side device can configure the number of multiple dedicated uplink BWPs and multiple dedicated downlink BWPs according to the number of currently connected terminals with reduced capabilities and / or the current business volume; and instruct the first terminal which dedicated uplink BWP and which dedicated downlink BWP to activate, so that the first terminal can transmit data with the network side device through the activated dedicated uplink BWP and the activated dedicated downlink BWP.

[0099] This can be understood as follows: for the deployment recommendation of activating BWP for RedCap UEs, it is expected that the number of dedicated BWPs can be increased or decreased as needed based on factors such as the scale of RedCap users in the network and traffic volume. For example, in some embodiments, when there are a large number of RedCap UEs and / or high traffic volume (or traffic congestion occurs) in the network, one dedicated BWP containing CD-SSB and one or more dedicated BWPs containing NCD-SSB can be configured.

[0100] Optionally, the third information is configured through Radio Resource Control (RRC) signaling; and the fourth information is configured through Downlink Control Information (DCI).

[0101] For example, in some embodiments, after the first terminal randomly accesses the first cell, the network side device corresponding to the first cell may send the above-mentioned third information through RRC signaling to configure multiple downlink BWPs and multiple uplink BWPs supported by the network side device; the RedCap terminal saves the parameter information of multiple BWPs according to the RRC configuration; wherein, the network side device can also activate a specific BWP through the BWP indication field in the DCI; after receiving the activation command, the RedCap terminal switches to the corresponding BWP for data transmission.

[0102] Optionally, RedCap UEs support the BWP including NCD-SSB by default, which provides greater flexibility for RedCap UEs to activate BWP. It should be noted that NCD-SSB decouples the strong association between measurement and CD-SSB, allowing the BWP of RedCap UEs to be flexibly deployed away from the central frequency of the serving cell, supporting the network to dynamically allocate dedicated resources based on the number of RedCap UEs and / or traffic volume, while reducing terminal power consumption.

[0103] Optionally, the method further includes:

[0104] receiving fifth information, wherein the fifth information is used to indicate the BWP to be switched;

[0105] Switch from the currently used BWP to the BWP indicated by the fifth information.

[0106] The network-side device may send the fifth information based on at least one of a service requirement and a terminal state, i.e., instruct the first terminal to perform BWP switching based on at least one of a service requirement and a first terminal state. The first terminal state includes at least one of a low power consumption state and a non-low power consumption state.

[0107] Optionally, the fifth information is configured through RRC signaling or DCI.

[0108] For example, in some embodiments, when the first terminal needs to transmit large-bandwidth data, the network side device may activate a larger-bandwidth BWP; or, when the first terminal needs to transmit small-bandwidth data, the network side device may activate a smaller-bandwidth BWP.

[0109] In some embodiments, when the first terminal is in a low power consumption state, the network side device may instruct the first terminal to switch to a BWP with a smaller bandwidth, or, when the first terminal is in a non-low power consumption state, the network side device may instruct the first terminal to switch to a BWP with a larger bandwidth; in this way, after receiving the BWP switching command, the first terminal switches to the new BWP at a specified time point and performs corresponding channel estimation and synchronization operations.

[0110] Optionally, on the initial uplink BWP applied to the terminal with reduced capability, the frequency domain resources of the common physical uplink control channel PUCCH are continuous (i.e., no frequency hopping); in this way, after completing the random access process, the first terminal can send the common PUCCH on the continuous resources on the initial uplink BWP of the terminal with reduced capability, thereby avoiding the uplink resource fragmentation problem caused by RedCapUE.

[0111] It should be noted that the public PUCCH refers to an uplink control channel resource shared by all UEs in a cell and is used to transmit key uplink control information.

[0112] Optionally, the method further includes:

[0113] After the first redirection to the first network fails, no measurement report of the cell of the first network is reported within a first time period.

[0114] Among them, after the first redirection to the first network fails, if the first terminal still reports the measurement report of the cell of the first network, then the first terminal will try to access the cell of the first network. However, if the cell of the first network does not support the terminal with reduced capabilities, the first terminal will not be able to access the cell of the first network (that is, redirection fails), and thus falls back to the cell of other networks; however, after the cell of the other network is stable, the first terminal will report the measurement report of the cell of the first network again, and thus try to access the cell of the first network again..., and this cycle will continue, and a ping-pong effect will occur.

[0115] In the embodiment of the present application, after the first terminal fails to redirect to the first network for the first time, it does not report the measurement report of the cell of the first network within the first time period and will not attempt to access the cell of the first network, thereby avoiding the ping-pong effect.

[0116] To facilitate understanding of the above-mentioned issues related to the ping-pong effect, the following examples are given:

[0117] In the 4G / 5G border area, a RedCap UE is currently in a 4G cell. When the RedCap UE detects a good signal in a neighboring 5G cell, it reports a measurement report to the 4G network equipment. Based on the measurement report, the 4G network equipment decides to redirect the terminal to the 5G cell. The RedCap UE then attempts to access the 5G cell. However, the 5G cell does not have the RedCap function enabled, meaning it does not support RedCap terminal access. Therefore, the RedCap UE's access attempt to the 5G cell fails, and the RedCap UE falls back to the 4G network. After the RedCap UE stabilizes on the 4G network, it detects the same (or a neighboring) 5G cell with a good signal and reports another measurement report...

[0118] In this way, the following loop begins: the 4G network device sends a redirection command again -> the RedCap UE tries to access the 5G cell that does not support RedCap again -> fails again -> falls back to 4G again -> reports the measurement report again...; this rapid, repeated, and ineffective "4G -> 5G (failure) -> back to 4G" process is the ping-pong effect.

[0119] The aforementioned "protection mechanism (i.e., not reporting 5G cell measurement reports within the first time period after the initial redirection to 5G fails)" is essentially a mechanism whereby, after the terminal fails in its first attempt to access a 5G cell, it intelligently "remembers" that the cell does not support it (or has access issues), and proactively blocks measurement reports for that cell for a period of time. This prevents the 4G network from being informed of the existence of the 5G cell and, therefore, from triggering the redirection process to the invalid cell again. The RedCap UE is able to maintain a stable connection on the 4G network until the protection period ends or it moves to another area, effectively avoiding the ping-pong effect caused by repeated attempts to access an invalid 5G cell.

[0120] Figure 2 A flow chart of a communication processing method provided in an embodiment of the present application is shown. The communication processing method can be applied to a network-side device (for example, a base station). The method may include the following steps 201:

[0121] Step 201: Send first information.

[0122] The first information includes at least one of the following: first parameter information of an initial downlink bandwidth part BWP applied to the terminal with reduced capability, and second parameter information of an initial uplink BWP applied to the terminal with reduced capability; the initial downlink BWP applied to the terminal with reduced capability is different from the initial downlink BWP applied to the terminal with non-reduced capability, and / or the initial uplink BWP applied to the terminal with reduced capability is different from the initial uplink BWP applied to the terminal with non-reduced capability.

[0123] In addition, after the first terminal determines the first cell to be accessed, it can receive the above-mentioned first information of the first cell sent by the network side device, so that when the first terminal is a terminal with reduced capability, it can randomly access the first cell according to the initial downlink BWP indicated by the first parameter information and / or the initial uplink BWP indicated by the second parameter information.

[0124] It can be seen from this that in some embodiments of the present application, the network-side device can configure an independent initial downlink BWP (i.e., a different BWP from the initial downlink BWP used by non-reduced capability terminals) and / or an independent initial uplink BWP (i.e., a different BWP from the initial uplink BWP used by non-reduced capability terminals) for the reduced capability terminals. In this way, the reduced capability terminals and the non-reduced capability terminals can perform random access on their respective initial BWPs, thereby alleviating (or avoiding) the congestion caused by the reduced capability terminals and the non-reduced capability terminals gathering in the same narrowband resources.

[0125] Optionally, when the first information includes the first parameter information, sending the first parameter information includes:

[0126] A physical broadcast channel (PBCH) is sent, where the PBCH carries the first parameter information.

[0127] It can be seen from this that the first parameter information of the initial downlink BWP applied to the terminal with reduced capability can be carried in the PBCH.

[0128] Optionally, the PBCH may also include an initial downlink BWP applied to non-reduced capability terminals. For example, in some embodiments, the PBCH carries parameter information of the initial downlink BWP applied to the reduced capability terminal and the initial downlink BWP applied to the non-reduced capability terminal. After receiving the PBCH, the reduced capability terminal may use the initial downlink BWP applied to the reduced capability terminal for random access; and after receiving the PBCH, the non-reduced capability terminal may use the initial downlink BWP applied to the non-reduced capability terminal for random access.

[0129] Optionally, when the first information includes the second parameter information, sending the second parameter information includes:

[0130] A physical downlink control channel PDCCH is sent, where the PDCCH carries the second parameter information.

[0131] Among them, if an independent initial downlink BWP is configured for the terminal with reduced capability, the terminal with reduced capability can monitor the PDCCH on the BWP to obtain the initial uplink BWP permitted in the monitored PDCCH. The initial uplink BWP is: the independent initial uplink BWP configured for the terminal with reduced capability.

[0132] Optionally, the PDCCH may also include an initial uplink BWP for non-reduced capability terminals. For example, in some embodiments, the PDCCH may include parameter information regarding the initial uplink BWP for the reduced capability terminal and the initial uplink BWP for the non-reduced capability terminal. Upon receiving the PDCCH, the reduced capability terminal may use the initial uplink BWP for the reduced capability terminal for random access; and upon receiving the PDCCH, the non-reduced capability terminal may use the initial uplink BWP for the non-reduced capability terminal for random access.

[0133] Optionally, the method further includes:

[0134] sending a second message;

[0135] The second information includes at least one of the following:

[0136] First indication information, used to indicate whether to allow access by a terminal with reduced capability using a single antenna (the first indication information may be expressed as: cellBarredRedCap1Rx);

[0137] Second indication information, used to indicate whether to allow access by a terminal with reduced capabilities using dual antennas (the second indication information may be expressed as: cellBarredRedCap2Rx);

[0138] The third indication information is used to indicate whether a terminal with reduced capability supporting half-duplex is allowed to access (the third indication information may be expressed as: halfDuplexRedCapAllowed);

[0139] The fourth indication information is used to indicate that when the cell is in a prohibited state, terminals with reduced capabilities are allowed to select or reselect this cell after the first time (the fourth indication information can be expressed as: intraFreqReselectionRedCap); that is, if intraFreqReselectionRedCap does not appear in the second information, it means that RedCap terminals are prohibited from accessing this cell.

[0140] Optionally, the fourth indication information is also used to indicate a method for searching for other accessible neighboring cells in the same frequency band, so that the terminal can search for other accessible cells.

[0141] In some embodiments, after the first terminal is powered on, it scans the entire frequency band to find a suitable cell (i.e., receives the SSB sent by the network side and finds the cell corresponding to the SSB with the strongest signal). After achieving symbol synchronization and frame synchronization through the SSB signal, if the first terminal is a terminal with reduced capability, it can further determine whether the cell allows the first terminal to access based on the second information of the cell. Only when the cell allows the first terminal to access, the cell will be used as the first cell to be accessed by the first terminal, thereby further improving the success rate of random access by the first terminal.

[0142] It can be understood that if the second information of the cell corresponding to the first SSB with the best signal quality selected by the first terminal does not meet the above-mentioned first condition (that is, the cell corresponding to the first SSB with the best signal quality selected by the first terminal does not allow terminals with reduced capabilities to access), the first terminal can reselect a second SSB with the best signal quality from the multiple SSBs it receives except the first SSB, so as to determine whether the second information of the cell corresponding to the second SSB meets the above-mentioned first condition, and if so, the cell corresponding to the second SSB can be determined as the first cell to be accessed by the first terminal.

[0143] It should be noted that the above signal quality can be represented by Reference Signal Received Power (RSRP), and the best signal quality can be understood as the maximum RSRP.

[0144] Optionally, SIB1 includes the above-mentioned second information; that is, it can be understood that at least one of the above-mentioned first indication information, second indication information, third indication information, and fourth indication information is included in SIB1. In some embodiments, after the first terminal selects the first SSB with the best signal quality, it can read the physical broadcast channel (PBCH) of the cell corresponding to the first SSB to obtain basic system information of the cell, which includes SIB1, so that the first terminal can determine whether the cell allows terminals with reduced capabilities to access based on at least one of the above-mentioned first indication information, second indication information, third indication information, and fourth indication information in SIB1.

[0145] Optionally, the method further includes:

[0146] When the received random access-related message satisfies at least one of the following items B-1 to B-3, determining that the terminal sending the random access-related message is a terminal with reduced capability:

[0147] Item B-1: The pilot sequence used in the received random access-related message is a pilot sequence dedicated to terminals with reduced capabilities;

[0148] Item B-2: The random access timing used by the received random access-related message is a random access timing dedicated to terminals with reduced capabilities;

[0149] Item B-3: The logical channel identifier LCID used by the received random access related message is a specific LCID.

[0150] Among them, if the random access-related message sent by the terminal with reduced capabilities uses at least one of "a pilot sequence dedicated to the terminal with reduced capabilities, a random access opportunity dedicated to the terminal with reduced capabilities, and a specific logical channel identifier LCID", then after the network side device receives the message, it can identify whether the terminal sending the message is a terminal with reduced capabilities based on at least one of "a pilot sequence dedicated to the terminal with reduced capabilities, a random access opportunity dedicated to the terminal with reduced capabilities, and a specific logical channel identifier LCID" used in the message. It can be seen that in some embodiments of the present application, the network side device can identify whether the terminal performing the random access process is a terminal with reduced capabilities as early as possible during the random access process.

[0151] Optionally, the random access related message includes a four-step random access related message or a two-step random access related message.

[0152] In some embodiments, during the random access process, a physical random access channel (PRACH) pilot sequence dedicated to RedCap UE can be configured in SIB1, and the network side device can identify the RedCap UE by detecting the dedicated PRACH pilot sequence used by the random access request message (MSG1) / message A (MSGA).

[0153] Alternatively, in some embodiments, a PRACH opportunity dedicated to RedCap UE may also be configured in SIB1, and the network-side device identifies the RedCap UE by detecting the dedicated PRACH opportunity where MSG1 / MSGA is located.

[0154] Alternatively, in some embodiments, during the random access process, the RedCap UE needs to use a specific LCID identifier to send an uplink transmission message (MSG3) / MSGA, and the network side device can identify the RedCap UE through the LCID used by the RedCap UE.

[0155] Optionally, the method further includes:

[0156] Determining a first number of dedicated uplink BWPs and a second number of dedicated downlink BWPs according to the number of reduced-capacity terminals currently accessing the network-side device and / or the current traffic volume;

[0157] Sending third information according to the first quantity and the second quantity, wherein the third information includes: parameter information of multiple dedicated uplink BWPs and parameter information of multiple dedicated downlink BWPs;

[0158] Send fourth information, where the fourth information is used to indicate activation of one of the multiple dedicated uplink BWPs and activation of one of the multiple dedicated downlink BWPs.

[0159] Optionally, the parameter information of the BWP includes at least one of bandwidth, center frequency, subcarrier spacing, and time slot format.

[0160] Among them, the network side device can configure the number of multiple dedicated uplink BWPs and multiple dedicated downlink BWPs according to the number of currently connected terminals with reduced capabilities and / or the current business volume; and instruct the first terminal which dedicated uplink BWP and which dedicated downlink BWP to activate, so that the first terminal can transmit data with the network side device through the activated dedicated uplink BWP and the activated dedicated downlink BWP.

[0161] This can be understood as follows: for the deployment recommendation of activating BWP for RedCap UEs, it is expected that the number of dedicated BWPs can be increased or decreased as needed based on factors such as the scale of RedCap users in the network and traffic volume. For example, in some embodiments, when there are a large number of RedCap UEs and / or high traffic volume (or traffic congestion occurs) in the network, one dedicated BWP containing CD-SSB and one or more dedicated BWPs containing NCD-SSB can be configured.

[0162] Optionally, the third information is configured through Radio Resource Control (RRC) signaling; and the fourth information is configured through Downlink Control Information (DCI).

[0163] Optionally, the method further includes:

[0164] The fifth information is sent according to at least one of a service requirement and a terminal state, wherein the fifth information is used to indicate the BWP to be switched.

[0165] That is, the network side device can instruct the terminal to perform BWP switching according to at least one of service requirements and the terminal state, wherein the terminal state includes at least one of a low power consumption state and a non-low power consumption state.

[0166] Optionally, the fifth information is configured through RRC signaling or DCI.

[0167] For example, in some embodiments, when the terminal needs to transmit large-bandwidth data, the network-side device may activate a larger-bandwidth BWP; or, when the terminal needs to transmit small-bandwidth data, the network-side device may activate a smaller-bandwidth BWP.

[0168] In some embodiments, when the terminal is in a low power consumption state, the network side device may instruct the terminal to switch to a BWP with a smaller bandwidth, or, when the terminal is in a non-low power consumption state, the network side device may instruct the terminal to switch to a BWP with a larger bandwidth; in this way, after receiving the BWP switching command, the terminal switches to the new BWP at a specified time point and performs corresponding channel estimation and synchronization operations.

[0169] Optionally, the frequency domain resources of the common physical uplink control channel (PUCCH) are continuous on the initial uplink BWP for the reduced-capability terminal. In this way, after completing the random access procedure, the terminal can send the common PUCCH on the continuous resources on the initial uplink BWP for the reduced-capability terminal, thereby avoiding the uplink resource fragmentation problem caused by RedCap UEs.

[0170] In summary, the specific implementation of the communication processing method of the embodiment of the present application can be described as follows:

[0171] First, the following describes the conditions that must be met for random access by a reduced-capability terminal (RedCap UE) and how the base station identifies a RedCap UE:

[0172] First, a RedCap UE can reside in a cell and initiate random access only when at least one of the following conditions is met:

[0173] The parameter cellBarredRedCap1Rx in SIB1 indicates that the cell allows RedCap UEs with a single antenna to access;

[0174] The parameter cellBarredRedCap2Rx in SIB1 indicates that the cell allows RedCap UEs with dual antennas to access;

[0175] The parameter halfDuplexRedCapAllowed in SIB1 indicates that this cell allows access by RedCap UEs that only support half-duplex;

[0176] The parameter intraFreqReselectionRedCap in SIB1 indicates that when a cell is barred, RedCap UEs can select or reselect this cell after 300 seconds, and how to search for other accessible neighboring cells in the same frequency band. If intraFreqReselectionRedCap does not appear in SIB1, RedCap UEs are prohibited from accessing this cell.

[0177] Secondly, the base station identifies the UE as a RedCap UE as early as possible during the random access phase of the UE. The specific identification method can be as described in the following methods 1, 2, or 3:

[0178] Method 1: Configure a RedCap UE-specific PRACH pilot sequence in SIB1. In this way, during the random access process, the base station identifies the RedCap UE by detecting the dedicated PRACH pilot sequence used by MSG1 / MSGA.

[0179] Method 2: Configure a dedicated PRACH opportunity for RedCap UE in SIB1. In this way, the base station identifies the RedCap UE by detecting the dedicated PRACH opportunity where MSG1 / MSGA is located.

[0180] Method 3: During the random access process, the RedCap UE sends MSG3 / MSGA and uses a specific LCID to identify the CCCH. In this way, the base station can identify the RedCap UE through the LCID used by the RedCap UE.

[0181] Based on the first and second aspects herein, the process of RedCap UE performing four-step random access and data transmission and BWP switching after access is as follows: Figure 5 As shown, the details are as follows:

[0182] 1. Cell search and synchronization:

[0183] After the RedCap UE is turned on, it scans the entire frequency band to find a suitable cell, that is, it uses the SSB signal to achieve symbol synchronization and frame synchronization to determine the physical layer ID of the cell to be accessed; then the terminal reads the PBCH of the cell and obtains the basic system information of the cell, such as the system frame number (SFN), cell bandwidth, common reference signal (CRS) configuration, etc.

[0184] The system information includes SIB1, and the RedCap UE can determine whether it can access the cell based on the relevant switch parameters included in SIB1 (ie, the above-mentioned cellBarredRedCap1Rx, cellBarredRedCap2Rx, halfDuplexRedCapAllowed, and intraFreqReselectionRedCap).

[0185] It is understandable that if the cell with the best signal quality currently obtained by the RedCap UE does not allow it to access, the RedCap UE can exclude the cell, thereby re-acquiring a cell with the best signal quality, and then determine whether the re-selected cell allows it to access based on the SIB1 of the re-selected cell.

[0186] 2. Determine the initial BWP:

[0187] The RedCap UE obtains the parameters of the initial downlink BWP from the system information carried by the PBCH. The initial downlink BWP is used to carry basic control and signaling information to reduce the power consumption and complexity of the UE. The parameters of the initial downlink BWP include bandwidth, center frequency, subcarrier spacing, etc.

[0188] 3. Random access:

[0189] The RedCap UE monitors the PDCCH of the cell it wants to access on the initial downlink BWP to search for the grant requested by the System Information (SI), where the grant is used to indicate the permitted initial uplink BWP. It can be seen that when the RedCap UE searches for the grant, it initiates a random access process based on the permitted initial uplink BWP, that is, the RedCap UE sends a random access preamble on the PRACH in the permitted initial uplink BWP.

[0190] It should be noted that the purpose of random access is to establish uplink synchronization between the RedCap UE and the base station and obtain uplink resource allocation; after receiving the random access preamble, the base station schedules the physical downlink shared channel (PDSCH) through the PDCCH, and then sends a random access response (Random Access Response, RAR) to the RedCap UE through the PDSCH; among them, the RAR includes the UE's timing advance (TA), temporary cell radio network temporary identifier (Temporary Cell-Radio Network Temporary Identifier, T-CRNTI), uplink resource allocation and other information.

[0191] The RedCap UE sends message 3 (Msg3) based on the uplink resources allocated in the RAR, where Msg3 includes the contention resolution ID. After receiving Msg3, the base station sends Msg4 including the contention resolution ID. After receiving Msg4, the RedCap UE confirms that the contention resolution ID is consistent with the one sent in Msg3, thus completing the four-step random access.

[0192] It should be noted that if Figure 3 As shown in the figure, since RedCap UEs support narrower bandwidths, sharing the same initial uplink and downlink BWP resources with non-RedCap UEs may result in too many users congregating within the same narrowband resources, causing congestion. Therefore, introducing an independent initial BWP for RedCap UEs can avoid this situation. That is, the initial uplink BWP used by RedCap UEs can be different from the initial uplink BWP used by non-RedCap UEs, and the initial downlink BWP used by RedCap UEs can be different from the initial downlink BWP used by non-RedCap UEs. For example, a RedCap UE can be configured with one independent initial uplink BWP or one independent initial downlink BWP, or both.

[0193] Optionally, the independent initial downlink BWP may include a cell-defining SSB (CD-SSB) / CORESET 0; or, the independent initial downlink BWP may not include CD-SSB / CORESET 0.

[0194] For example, Figure 4As shown in the figure, after the RedCap UE receives the SSB, it determines CORESET0 so that it can receive SIB1 and then determines whether an independent initial BWP is configured for the RedCap UE in SIB1. If so, it accesses the independent initial BWP; if not, it accesses the initial BWP shared with non-RedCap UEs. It should be noted that the SSB provides the initial access anchor point, and the parameters in the Master Information Block (MIB) it carries are the core basis for deriving the resource configuration of CORESET0; CORESET0, as the first control channel resource set, enables the UE to receive the PDCCH scheduling SIB1 and complete the subsequent system information acquisition and random access procedures.

[0195] In addition, in order to avoid the uplink resource fragmentation problem caused by RedCap UE, for the independent initial uplink BWP, the configuration of no frequency hopping of public PUCCH in the RedCap scenario can also be introduced.

[0196] 4. Multiple BWP configuration and activation

[0197] During the random access process, the base station can identify whether the UE performing random access is a RedCap UE based on the above-mentioned method 1, 2, or 3, so that after the random access is completed, the base station can configure one or more dedicated uplink BWPs and one or more dedicated downlink BWPs for the RedCap UE according to the number and / or traffic volume of the currently accessed RedCap UEs. Therefore, it can be seen that for the deployment recommendation of activating BWP for RedCap UEs, it is expected that the number of dedicated BWPs can be increased or decreased as needed based on factors such as the scale and traffic volume of RedCap UEs in the network.

[0198] Optionally, when the number of RedCap UEs in the network is small and the traffic volume is low, it is recommended to configure one dedicated BWP containing CD-SSB; when the number of RedCap UEs in the network is large and the traffic volume is high (or the traffic is congested), it is recommended to configure one dedicated BWP containing CD-SSB and one or more dedicated BWPs containing NCD-SSB, such as Figure 6 shown.

[0199] Among them, after completing random access, the base station can send BWP configuration information to the RedCap UE through RRC signaling. The BWP configuration information includes parameters of multiple dedicated uplink BWPs and parameters of multiple dedicated downlink BWPs (such as bandwidth, center frequency, subcarrier spacing, time slot format, etc.); RedCap UE saves the parameters of multiple BWPs according to the RRC configuration.

[0200] In addition, after completing random access, the RedCap UE continues to monitor the PDCCH on the initial downlink BWP and obtains DCI. The BWP indication field in the DCI is used to indicate the activation of specific uplink BWP and downlink BWP, so that the RedCap UE can switch to the corresponding BWP for data transmission.

[0201] It should be noted that RedCap UE supports the BWP including NCD-SSB function by default, which provides greater flexibility for RedCap UE to activate BWP.

[0202] 5. Data transmission

[0203] On the activated BWP, the RedCap UE monitors the PDCCH to obtain resource allocation information for uplink and downlink data transmission; for downlink data, the RedCap UE receives data on the PDSCH; for uplink data, the RedCap UE sends data on the Physical Uplink Shared Channel (PUSCH) according to the uplink resources indicated by the PDCCH.

[0204] 6. BWP Switch

[0205] The base station can instruct the terminal to switch BWPs via DCI or RRC signaling based on at least one of service requirements and the terminal's status. For example, when the terminal needs to transmit high-bandwidth data, the base station can activate a higher-bandwidth BWP; when the terminal is in a low-power state, it can switch to a lower-bandwidth BWP. Therefore, upon receiving the BWP switch command, the terminal can switch to the new BWP at the specified time and perform the corresponding channel estimation and synchronization operations.

[0206] Furthermore, in areas bordering different systems, due to incomplete RedCap coverage, ping-pong is common when moving from a 4G cell to a 5G cell without RedCap enabled. RedCap dual-mode terminals can enable a "protection mechanism" switch. For example, if the initial redirection to 5G fails, the protection mechanism will be activated, meaning that measurement reports for the target 5G cell will not be submitted for a period of time to ensure user experience.

[0207] The above describes the communication processing method provided in the embodiment of the present application. The following describes the communication processing device provided in the embodiment of the present application in conjunction with the accompanying drawings.

[0208] See also Figure 7 , an embodiment of the present application further provides a communication processing device, applied to a first terminal, the device comprising:

[0209] A first determining module 701 is configured to determine a first cell to be accessed by a first terminal;

[0210] an acquiring module 702, configured to acquire first information of the first cell, wherein the first information includes at least one of the following: first parameter information of an initial downlink bandwidth portion BWP applied to the reduced capability terminal, second parameter information of an initial uplink BWP applied to the reduced capability terminal, the initial downlink BWP applied to the reduced capability terminal being different from the initial downlink BWP applied to the non-reduced capability terminal, and / or the initial uplink BWP applied to the reduced capability terminal being different from the initial uplink BWP applied to the non-reduced capability terminal;

[0211] The random access module 703 is configured to randomly access the first cell according to the initial downlink BWP indicated by the first parameter information and / or the initial uplink BWP indicated by the second parameter information when the first terminal is a reduced-capability terminal.

[0212] Optionally, the first determining module 701 is specifically configured to:

[0213] Receive multiple synchronization signal blocks SSB sent by the network side device;

[0214] Selecting a first SSB with the best signal quality among the plurality of synchronization signal blocks SSB;

[0215] Obtain second information of the cell corresponding to the first SSB, and if the second information meets the first condition and the first terminal is a terminal with reduced capability, determine that the cell corresponding to the first SSB is the first cell to be accessed by the first terminal;

[0216] The first condition includes at least one of the following:

[0217] The second information includes first indication information, and the first indication information is used to indicate that a terminal with reduced capability using a single antenna is allowed to access;

[0218] The second information includes second indication information, and the second indication information is used to indicate that a terminal with reduced capability of dual antennas is allowed to access;

[0219] The second information includes third indication information, and the third indication information is used to indicate that a terminal with reduced capability supporting half-duplex is allowed to access;

[0220] The second information includes fourth indication information, wherein the fourth indication information is used to indicate that when the cell is in a barred state, the terminal with reduced capability is allowed to select or reselect the cell after the first time.

[0221] Optionally, when the first information includes the first parameter information, the acquiring module 702 acquires the first parameter information, including:

[0222] receiving a physical broadcast channel (PBCH) of the first cell;

[0223] The first parameter information is read in the PBCH.

[0224] Optionally, when the first information includes the first parameter information and the second parameter information, the acquiring module 702 acquires the second parameter information, including:

[0225] monitoring a physical downlink control channel (PDCCH) of the first cell according to the initial downlink BWP indicated by the first parameter information;

[0226] Parameter information of the granted initial uplink BWP indicated in the monitored PDCCH is obtained, and determined as the second parameter information.

[0227] Optionally, the random access module 703 randomly accesses the first cell, including:

[0228] Sending a random access related message according to at least one of the following:

[0229] pilot sequences specific to terminals with reduced capabilities;

[0230] Random access opportunities dedicated to terminals with reduced capabilities;

[0231] A specific logical channel identifier LCID.

[0232] Optionally, the device further includes: a second transmission module, configured to:

[0233] After randomly accessing the first cell, receiving third information sent by a network-side device, wherein the third information includes: parameter information of multiple dedicated uplink BWPs and parameter information of multiple dedicated downlink BWPs;

[0234] receiving fourth information sent by the network-side device, wherein the fourth information is used to instruct activation of one of the multiple dedicated uplink BWPs and activation of one of the multiple dedicated downlink BWPs;

[0235] Data transmission is performed according to the parameter information of the dedicated uplink BWP activated as indicated by the fourth information and the parameter information of the dedicated downlink BWP activated as indicated by the fourth information.

[0236] Optionally, the device further comprises:

[0237] The second transmission module is configured to: receive fifth information, wherein the fifth information is used to indicate the BWP to be switched;

[0238] The switching module is configured to switch from the currently used BWP to the BWP indicated by the fifth information.

[0239] Optionally, on an initial uplink BWP applied to the reduced-capability terminal, frequency domain resources of the common physical uplink control channel PUCCH are continuous.

[0240] Optionally, the device further comprises:

[0241] The processing module is configured to not report a measurement report of a cell of the first network within a first time period after the first redirection to the first network fails.

[0242] See also Figure 8 , an embodiment of the present application further provides a communication processing device, applied to a network-side device, the device comprising:

[0243] The first transmission module 801 is configured to send first information, wherein the first information includes at least one of the following: first parameter information of an initial downlink bandwidth part (BWP) applied to the terminal with reduced capability, and second parameter information of an initial uplink BWP applied to the terminal with reduced capability;

[0244] The initial downlink BWP applied to the reduced capability terminal is different from the initial downlink BWP applied to the non-reduced capability terminal, and / or the initial uplink BWP applied to the reduced capability terminal is different from the initial uplink BWP applied to the non-reduced capability terminal.

[0245] Optionally, when the first information includes the first parameter information, the first transmission module 801 sends the first parameter information, including:

[0246] A physical broadcast channel (PBCH) is sent, where the PBCH carries the first parameter information.

[0247] Optionally, when the first information includes the second parameter information, the first transmission module 801 sends the second parameter information, including:

[0248] A physical downlink control channel PDCCH is sent, where the PDCCH carries the second parameter information.

[0249] Optionally, the first transmission module 801 is further configured to:

[0250] sending a second message;

[0251] The second information includes at least one of the following:

[0252] First indication information, used to indicate whether to allow access by a terminal with a single antenna and reduced capability;

[0253] The second indication information is used to indicate whether to allow access by a terminal with reduced capabilities and dual antennas;

[0254] The third indication information is used to indicate whether to allow access of a terminal with reduced capability that supports half-duplex;

[0255] The fourth indication information is used to indicate that when the cell is in a barred state, the terminal with reduced capability is allowed to select or reselect the cell after the first time.

[0256] Optionally, the apparatus further includes a second determining module, configured to: determine that the terminal sending the random access-related message is a terminal with reduced capability when the received random access-related message satisfies at least one of the following conditions:

[0257] The pilot sequence used in the received random access-related message is a pilot sequence dedicated to the terminal with reduced capability;

[0258] The random access opportunity used by the received random access-related message is a random access opportunity dedicated to terminals with reduced capabilities;

[0259] The logical channel identifier LCID used by the received random access related message is a specific LCID.

[0260] Optionally, the device further comprises:

[0261] A second determining module is configured to determine a first number of dedicated uplink BWPs and a second number of dedicated downlink BWPs according to the number of reduced-capacity terminals currently accessing the network-side device and / or the current traffic volume;

[0262] The first transmission module 801 is further configured to:

[0263] Sending third information according to the first quantity and the second quantity, wherein the third information includes: parameter information of multiple dedicated uplink BWPs and parameter information of multiple dedicated downlink BWPs;

[0264] Send fourth information, where the fourth information is used to indicate activation of one of the multiple dedicated uplink BWPs and activation of one of the multiple dedicated downlink BWPs.

[0265] Optionally, the first transmission module 801 is further configured to:

[0266] The fifth information is sent according to at least one of a service requirement and a terminal state, wherein the fifth information is used to indicate the BWP to be switched.

[0267] Optionally, on an initial uplink BWP applied to the reduced-capability terminal, frequency domain resources of the common physical uplink control channel PUCCH are continuous.

[0268] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0269] It should be noted that the division of units in the embodiments of the present application is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0270] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0271] The embodiment of the present application also provides a communication device, such as Figure 9 As shown, the communication device includes a memory 920, a transceiver 910, and a processor 900;

[0272] Memory 920, for storing computer programs;

[0273] a transceiver 910 , configured to receive and send data under the control of the processor 900 ;

[0274] In a first aspect, when the communication device serves as a first terminal, the processor 900 is configured to read the computer program in the memory 920 and execute the communication processing method described in the first aspect;

[0275] In the second aspect, when the communication device serves as a network side device, the processor 900 is used to read the computer program in the memory 920 and execute the communication processing method described in the second aspect.

[0276] Among them, Figure 9 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by the processor 900 and the memory represented by the memory 920. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 910 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 900 when performing operations.

[0277] The processor 900 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor 900 may also adopt a multi-core architecture.

[0278] An embodiment of the present application also provides a communication processing system, including a first terminal and a network side device, wherein the first terminal is used to execute the communication processing method described in the first aspect above, and the network side device is used to execute the communication processing method described in the second aspect above.

[0279] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the communication processing method described in the first aspect above is implemented, or the communication processing method described in the second aspect above is implemented.

[0280] The computer-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (Magnet-Optica, MO)), etc.), optical storage (such as Compact Disk (CD), Digital Versatile Disc (DVD), Blu-ray Disc (BD), Holographic Versatile Disc (HVD), etc.), and semiconductor memory (such as Read-Only Memory (ROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), non-volatile memory (NAND FLASH), solid-state drive (Solid State Disk or Solid State Drive, SSD)), etc.

[0281] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can 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 can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) that contain computer-usable program code.

[0282] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable 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 produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. 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.

[0283] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce an article of manufacture comprising an instruction device that implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0284] These processor-executable instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0285] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A communication processing method, characterized in that: Applied to a first terminal, the method includes: Determining a first cell to be accessed by the first terminal; Acquiring first information of the first cell, wherein the first information includes at least one of the following: first parameter information of an initial downlink bandwidth part BWP applied to the reduced capability terminal, and second parameter information of an initial uplink BWP applied to the reduced capability terminal, the initial downlink BWP applied to the reduced capability terminal is different from the initial downlink BWP applied to the non-reduced capability terminal, and / or the initial uplink BWP applied to the reduced capability terminal is different from the initial uplink BWP applied to the non-reduced capability terminal; In a case where the first terminal is a reduced-capability terminal, the first cell is randomly accessed according to the initial downlink BWP indicated by the first parameter information and / or the initial uplink BWP indicated by the second parameter information.

2. The method according to claim 1, characterized in that The determining the first cell to be accessed by the first terminal includes: Receive multiple synchronization signal blocks SSB sent by the network side device; Selecting a first SSB with the best signal quality among the plurality of synchronization signal blocks SSB; Obtain second information of the cell corresponding to the first SSB, and if the second information meets the first condition and the first terminal is a terminal with reduced capability, determine that the cell corresponding to the first SSB is the first cell to be accessed by the first terminal; The first condition includes at least one of the following: The second information includes first indication information, and the first indication information is used to indicate that a terminal with reduced capability using a single antenna is allowed to access; The second information includes second indication information, and the second indication information is used to indicate that a terminal with reduced capability of dual antennas is allowed to access; The second information includes third indication information, and the third indication information is used to indicate that a terminal with reduced capability supporting half-duplex is allowed to access; The second information includes fourth indication information, wherein the fourth indication information is used to indicate that when the cell is in a barred state, the terminal with reduced capability is allowed to select or reselect the cell after the first time.

3. The method according to claim 1, characterized in that The randomly accessing the first cell includes: Sending a random access related message according to at least one of the following: pilot sequences specific to terminals with reduced capabilities; Random access opportunities dedicated to terminals with reduced capabilities; A specific logical channel identifier LCID.

4. The method according to claim 1, wherein The method further comprises: After randomly accessing the first cell, receiving third information sent by a network-side device, wherein the third information includes: parameter information of multiple dedicated uplink BWPs and parameter information of multiple dedicated downlink BWPs; receiving fourth information sent by the network-side device, wherein the fourth information is used to instruct activation of one of the multiple dedicated uplink BWPs and activation of one of the multiple dedicated downlink BWPs; Data transmission is performed according to the parameter information of the dedicated uplink BWP activated as indicated by the fourth information and the parameter information of the dedicated downlink BWP activated as indicated by the fourth information.

5. The method according to claim 1, wherein The method further comprises: receiving fifth information, wherein the fifth information is used to indicate the BWP to be switched; Switch from the currently used BWP to the BWP indicated by the fifth information.

6. The method according to claim 1, wherein On the initial uplink BWP applied to the reduced-capability terminal, frequency domain resources of the common physical uplink control channel PUCCH are continuous.

7. The method according to any one of claims 1 to 6, characterized in that The method further comprises: After the first redirection to the first network fails, no measurement report of the cell of the first network is reported within a first time period.

8. A communication processing method, characterized in that: Applied to a network-side device, the method includes: Sending first information, wherein the first information includes at least one of the following: first parameter information of an initial downlink bandwidth part (BWP) applied to the terminal with reduced capability, and second parameter information of an initial uplink BWP applied to the terminal with reduced capability; The initial downlink BWP applied to the reduced capability terminal is different from the initial downlink BWP applied to the non-reduced capability terminal, and / or the initial uplink BWP applied to the reduced capability terminal is different from the initial uplink BWP applied to the non-reduced capability terminal.

9. The method according to claim 8, characterized in that The method further comprises: sending a second message; The second information includes at least one of the following: First indication information, used to indicate whether to allow access by a terminal with a single antenna and reduced capability; The second indication information is used to indicate whether to allow access by a terminal with reduced capabilities and dual antennas; The third indication information is used to indicate whether to allow access of a terminal with reduced capability that supports half-duplex; The fourth indication information is used to indicate that when the cell is in a barred state, the terminal with reduced capability is allowed to select or reselect the cell after the first time.

10. The method according to claim 8, characterized in that The method further comprises: When the received random access-related message satisfies at least one of the following conditions, determining that the terminal sending the random access-related message is a terminal with reduced capability: The pilot sequence used in the received random access-related message is a pilot sequence dedicated to the terminal with reduced capability; The random access opportunity used by the received random access-related message is a random access opportunity dedicated to terminals with reduced capabilities; The logical channel identifier LCID used by the received random access related message is a specific LCID.

11. The method according to claim 8, characterized in that The method further comprises: Determining a first number of dedicated uplink BWPs and a second number of dedicated downlink BWPs according to the number of reduced-capacity terminals currently accessing the network-side device and / or the current traffic volume; Sending third information according to the first quantity and the second quantity, wherein the third information includes: parameter information of multiple dedicated uplink BWPs and parameter information of multiple dedicated downlink BWPs; Send fourth information, where the fourth information is used to indicate activation of one of the multiple dedicated uplink BWPs and activation of one of the multiple dedicated downlink BWPs.

12. The method according to claim 8, characterized in that The method further comprises: The fifth information is sent according to at least one of a service requirement and a terminal state, wherein the fifth information is used to indicate the BWP to be switched.

13. The method according to any one of claims 8 to 12, characterized in that On the initial uplink BWP applied to the reduced-capability terminal, frequency domain resources of the common physical uplink control channel PUCCH are continuous.

14. A communication processing device, characterized in that: Applied to a first terminal, the apparatus includes: A first determining module, configured to determine a first cell to be accessed by the first terminal; an acquiring module, configured to acquire first information of the first cell, wherein the first information includes at least one of the following: first parameter information of an initial downlink bandwidth portion BWP applied to the reduced capability terminal, second parameter information of an initial uplink BWP applied to the reduced capability terminal, the initial downlink BWP applied to the reduced capability terminal being different from the initial downlink BWP applied to the non-reduced capability terminal, and / or the initial uplink BWP applied to the reduced capability terminal being different from the initial uplink BWP applied to the non-reduced capability terminal; The random access module is configured to randomly access the first cell according to the initial downlink BWP indicated by the first parameter information and / or the initial uplink BWP indicated by the second parameter information when the first terminal is a reduced-capability terminal.

15. A communication processing device, characterized in that: Applied to network-side equipment, the device includes: A first transmission module is configured to send first information, wherein the first information includes at least one of the following: first parameter information of an initial downlink bandwidth part (BWP) applied to the terminal with reduced capability, and second parameter information of an initial uplink BWP applied to the terminal with reduced capability; The initial downlink BWP applied to the reduced capability terminal is different from the initial downlink BWP applied to the non-reduced capability terminal, and / or the initial uplink BWP applied to the reduced capability terminal is different from the initial uplink BWP applied to the non-reduced capability terminal.

16. A communication device, characterized in that: Including memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; a processor for reading the computer program in the memory and executing the communication processing method according to any one of claims 1 to 7, or executing the communication processing method according to any one of claims 8 to 13.

17. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the communication processing method according to any one of claims 1 to 7 is implemented, or the communication processing method according to any one of claims 8 to 13 is implemented.

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