Indication method, access processing method, device, network side equipment and terminal

Abstract

An embodiment of the present invention provides an indication method, an access processing method, an apparatus, a network side device and a terminal, the method comprising: sending a physical broadcast channel PBCH, wherein the N bits in the PBCH are used to indicate M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type that each candidate BWP allows access to; the embodiment of the present invention can realize the indication of more states, and the indication efficiency is high.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to an indication method, an access processing method, a device, a network side device and a terminal. Background Art

[0002] Reduced Capability New Radio Devices (NR Light) support industrial sensor devices, wearable devices, video surveillance and other application scenarios. For industrial sensor devices, it may mean that there are a large number of sensor devices in a certain space, such as pressure sensors, humidity sensors, thermometers, motion sensors, accelerometers, actuators, etc. These devices are connected to the network at the same time, which will bring greater access pressure to the network and may cause congestion. In addition, with the popularization of video surveillance and wearable devices, these terminals are superimposed with ordinary enhanced mobile broadband (eMBB) / Ultra Reliable Low Latency Communication (URLLC) terminals, which will further increase the access volume and bring greater pressure to terminal access.

[0003] The existing access method in the NR system is: the terminal performs a synchronization signal block (SSB) search, obtains cell synchronization, and then further obtains system messages according to the resource set #0 indicated by the physical broadcast channel (PBCH) in the SSB, that is, the initial bandwidth part (Band Width Part, BWP), and performs corresponding random access operations on the corresponding initial uplink BWP; if the SSB is sent on only one frequency point in the cell, all terminals access through the initial uplink BWP. When there are a large number of terminals, it may cause a collision of access resources, resulting in terminal access failure.

[0004] In order to better support the low bandwidth capability and lower processing latency capability of NR Light, an NR Light service architecture based on the BWP framework is proposed. Under this architecture, different types of terminals use the same SSB to obtain cell synchronization, and then use different initial downlink BWPs to receive system broadcast messages and perform corresponding subsequent processes.

[0005] According to relevant requirements, the design of NR low-cost terminals should support the network to restrict the access of such terminals. The motivation of the network to restrict access may be for the purpose of congestion control, such as not wanting low-cost terminals to access the access BWP of eMBB / URLLC, or for the purpose of reducing the mutual impact when eMBB / URLLC coexists, etc., to avoid limited resources being occupied by other types of terminals.

[0006] However, in the prior art, such low-cost terminals cannot know whether they can access the corresponding BWP, and generally request access. If access is restricted, the network denies access, which leads to a waste of resources. Summary of the invention

[0007] The purpose of the embodiments of the present invention is to provide an indication method, an access processing method, an apparatus, a network side device and a terminal to solve the problem in the prior art that a low-cost terminal cannot know whether it can access a corresponding BWP, resulting in a waste of resources.

[0008] In order to solve the above problem, an embodiment of the present invention provides an indication method, which is applied to a network side device and is characterized by comprising:

[0009] Send a physical broadcast channel PBCH, where N in the PBCH is used to indicate M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type allowed to access each candidate BWP;

[0010] Wherein, N and M are integers greater than or equal to 1 respectively.

[0011] Wherein, the time-frequency resource positions of the M candidate BWPs are determined by predefinition;

[0012] Alternatively, there is a predefined relationship between the time-frequency resource positions of the M candidate BWPs and the time-frequency resource positions of the control resource set of the type 0 physical downlink control channel indicated by the main system information block carried by the PBCH.

[0013] The bandwidth size of the candidate BWP is related to the capability of the terminal that the candidate BWP allows to access.

[0014] The state of the terminal capability type allowed to be accessed by the candidate BWP includes at least one of the following:

[0015] Allow low-capability terminals to access;

[0016] Low-capability terminals are not allowed to access;

[0017] Allow low-capability terminal type 1 access;

[0018] Allow low-capability terminal type 2 access.

[0019] The N bits in the PBCH are used to indicate the combined state of the terminal capability types that each candidate BWP allows access to;

[0020] When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP.

[0021] The manner of indicating the combination state by N bits includes at least one of the following:

[0022] For a specific candidate BWP, indicating whether the specific candidate BWP allows access to the low-cost terminal;

[0023] Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to access by each candidate BWP indicated by the N bit of the PBCH;

[0024] The relationship between the terminal capability type allowed to access and the location of the candidate BWP is predefined.

[0025] The embodiment of the present invention further provides an access processing method, which is applied to a terminal, comprising:

[0026] Receiving a physical broadcast channel PBCH, wherein N bits in the PBCH are used to indicate M candidate bandwidth parts BWPs that can be used by the terminal and the terminal capability type that each candidate BWP allows access to; wherein N and M are integers greater than or equal to 1 respectively;

[0027] According to the PBCH, an accessible candidate BWP is determined.

[0028] The time-frequency resource positions of the M candidate BWPs are determined by predefinition; or, the time-frequency resource positions of the M candidate BWPs have a predefined relationship with the time-frequency resource positions of the control resource set of the type 0 physical downlink control channel indicated by the main system information block carried by the PBCH.

[0029] The bandwidth size of the candidate BWP is related to the capability of the terminal that the candidate BWP allows to access.

[0030] The state of the terminal capability type allowed to be accessed by the candidate BWP includes at least one of the following:

[0031] Allow low-capability terminals to access;

[0032] Low-capability terminals are not allowed to access;

[0033] Allow low-capability terminal type 1 access;

[0034] Allow low-capability terminal type 2 access.

[0035] The N bits in the PBCH are used to indicate the combined state of the terminal capability types allowed to be accessed by each candidate BWP;

[0036] When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP.

[0037] The manner of indicating the combination state by N bits includes at least one of the following:

[0038] For a specific candidate BWP, indicating whether the specific candidate BWP allows access to the low-cost terminal;

[0039] Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to access by each candidate BWP indicated by the N bit of the PBCH;

[0040] The relationship between the terminal capability type allowed to access and the location of the candidate BWP is predefined.

[0041] The embodiment of the present invention further provides an indication device, which is applied to a network side device, including:

[0042] A sending module, used for sending a physical broadcast channel PBCH, wherein the N bits in the PBCH are used for indicating the M candidate bandwidth parts BWP that can be used by the terminal and the low-cost terminal capability that each candidate BWP allows access to;

[0043] Wherein, N and M are integers greater than or equal to 1 respectively.

[0044] An embodiment of the present invention further provides a network side device, including a processor and a transceiver, wherein the transceiver receives and sends data under the control of the processor, and the processor is used to perform the following operations:

[0045] Send a physical broadcast channel PBCH, where N in the PBCH is used to indicate M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type allowed to access each candidate BWP;

[0046] Wherein, N and M are integers greater than or equal to 1 respectively.

[0047] The embodiment of the present invention further provides an access processing device, applied to a terminal, comprising:

[0048] A receiving module, used to receive a physical broadcast channel PBCH, wherein the N bits in the PBCH are used to indicate the M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type that each candidate BWP allows access to; wherein N and M are integers greater than or equal to 1 respectively;

[0049] The determination module is used to determine an accessible candidate BWP according to the PBCH.

[0050] An embodiment of the present invention further provides a terminal, including a processor and a transceiver, wherein the transceiver receives and sends data under the control of the processor, and the processor is configured to perform the following operations:

[0051] Receiving a physical broadcast channel PBCH, where bits in the PBCH are used to indicate M candidate bandwidth parts BWPs that can be used by the terminal and the terminal capability type that each candidate BWP allows access to; wherein N and M are integers greater than or equal to 1, respectively;

[0052] According to the PBCH, an accessible candidate BWP is determined.

[0053] An embodiment of the present invention also provides a communication device, including a memory, a processor, and a program stored in the memory and executable on the processor, wherein when the processor executes the program, the indication method as described above is implemented; or, when the processor executes the program, the access processing method as described above is implemented.

[0054] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps in the indication method described above; or, when executed by a processor, implements the steps in the access processing method described above.

[0055] The above technical solution of the present invention has at least the following beneficial effects:

[0056] In the indication method, access processing method, apparatus, network side equipment and terminal of the embodiments of the present invention, N reserved bits of PBCH are used to simultaneously indicate the candidate BWP and the terminal capability type allowed to access by each candidate BWP, which can realize the indication of more states with high indication efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 A schematic diagram showing the steps of the indication method provided by an embodiment of the present invention;

[0058] Figure 2 A schematic diagram showing the principle of Example 1 provided by an embodiment of the present invention;

[0059] Figure 3 A schematic diagram showing the principle of Example 2 provided by an embodiment of the present invention;

[0060] Figure 4 A schematic diagram showing the steps of the access processing method provided by an embodiment of the present invention;

[0061] Figure 5A schematic diagram showing the structure of an indicating device provided by an embodiment of the present invention;

[0062] Figure 6 A schematic diagram showing the structure of a network side device provided in an embodiment of the present invention;

[0063] Figure 7 A schematic diagram showing the structure of an access processing device provided by an embodiment of the present invention;

[0064] Figure 8 A schematic diagram showing the structure of a terminal provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0065] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0066] like Figure 1 As shown, an embodiment of the present invention provides an indication method, which is applied to a network side device, including:

[0067] Step 11, sending a physical broadcast channel PBCH, wherein the N bits in the PBCH are used to indicate the M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type that each candidate BWP allows access to; wherein N and M are integers greater than or equal to 1, respectively.

[0068] The terminal capability type does not specifically refer to a clear type definition, but may be an identifier of a terminal consisting of a set of capabilities of the terminal in different aspects, or a category of the terminal (UE category).

[0069] It should be noted that the terminal capability types allowed to be accessed by the candidate BWP include: whether to allow access to low-cost terminals, and the capabilities of the low-cost terminals allowed to be accessed (if access to low-cost terminals is allowed).

[0070] Optionally, in an embodiment of the present invention, the above-mentioned N bits are unused bits in PBCH.

[0071] As an optional embodiment, considering that the reserved bits are limited, the time-frequency resource positions of the M candidate BWPs are determined by predefinition, for example, immediately above and below BWP0, where BWP0 is the initial BWP0 indicated by pdcch-ConfigSIB1 in the SSB.

[0072] Alternatively, the time-frequency resource positions of the M candidate BWPs have a predefined relationship with the time-frequency resource positions of the control resource set of the type 0 physical downlink control channel indicated by the main system information block carried by the PBCH (i.e., the CORESET of type0-PDCCH indicated by the MIB carried by the PBCH). For example, the CORESET of type0-PDCCH is CORESET#0. For another example, the CORESET of Type0-PDCCH is indicated by pdcch-ConfigSIB1 of the MIB.

[0073] As another optional embodiment, the bandwidth size of the candidate BWP is related to the terminal capability that the candidate BWP allows access to; that is, the bandwidth size can vary with the indicated capability. For example, if the candidate BWP allows access to a low-cost terminal capability of capability X, then the corresponding candidate BWP bandwidth is 10MHz; for another example, if the candidate BWP allows access to a low-cost terminal capability of capability Y, then the corresponding candidate BWP bandwidth is 20MHz. In other words, the low-cost terminal capability can correspond to a specific bandwidth.

[0074] As yet another optional embodiment, the method further includes:

[0075] Compress and delete the states of the low-cost terminal capabilities allowed to access by each candidate BWP, and the N bits in the PBCH are used to indicate the combined state;

[0076] The states of low-cost terminal capabilities allowed to access by different candidate BWPs are compressed into one indicated combined state.

[0077] For example, if the number of states that the N reserved bits can indicate is a first value, and the number of combined states of the low-cost terminal capabilities that each candidate BWP allows access to is a second value, and when the first value is less than the second value, the states of the low-cost terminal capabilities that each candidate BWP allows access to are required to be compressed and deleted so that the first value is greater than or equal to the second value.

[0078] For example, if N is equal to 3, the first value is 8; if the second value is greater than 8 (for example, the second value is equal to 9), it is necessary to compress and delete the combination state of the low-cost terminal capabilities allowed to access by each candidate BWP.

[0079] In other words, in the embodiment of the present application, the N bit in the PBCH is used to indicate the combined state of the terminal capability types allowed to be accessed by each candidate BWP;

[0080] The combined state here means that each BWP has a state of whether to allow a terminal with a specific capability to access, and the states of each BWP are indicated together, which is called a combined state.

[0081] When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP.

[0082] For example, when a combined state includes: BWP1 allows access by terminals with capability X, and BWP2 does not allow access by low-capability terminals; and BWP1 does not allow access by low-capability terminals, and BWP2 allows access by terminals with capability X, then for the network, a BWP is reserved for supporting low-cost terminal capability X, so only one state can be indicated; the value of the N bit is "01" to indicate the combined state. At this time, it is agreed that when only terminals with capability X are allowed to access, this BWP is BWP1. Then only one indication is needed for this state. No two indications are needed to distinguish which BWP supports the access of terminals with capability X.

[0083] As an optional embodiment, the state of the terminal capability type allowed to access by the candidate BWP includes at least one of the following:

[0084] Allow low-capability terminals to access;

[0085] Low-capability terminals are not allowed to access;

[0086] Allow low-capability terminal type 1 access;

[0087] Allow low-capability terminal type 2 access.

[0088] Optionally, the manner of indicating the combination state by using N bits includes at least one of the following:

[0089] For a specific candidate BWP, it indicates whether the specific candidate BWP allows access to low-cost terminals (or it is called that for a specific candidate BWP, it only indicates whether the specific candidate BWP supports low-cost terminals); for example, for BWP0, it only needs to indicate whether it allows access to low-cost terminals; that is, the state of BWP0 is compressed, and BWP0 only considers two categories: supporting low-cost terminals and not supporting low-cost terminals;

[0090] Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to be accessed by each candidate BWP indicated by the N bit of the PBCH; for example, the same value of the reserved bit in the PBCH sent on the even frame and the PBCH sent on the odd frame can indicate different terminal capability types;

[0091] The relationship between the terminal capability types allowed to access and the positions of the candidate BWPs is predefined. For example, when the terminal capability types supported by multiple candidate BWPs are different, the corresponding order of the multiple candidate BWPs and the terminal capability types is predefined.

[0092] In order to more clearly describe the indication method provided by the embodiment of the present invention, two examples are provided below for illustration.

[0093] First, assume that the terminal capability types include: capability X and capability Y. The number of unused bits in PBCH is 3. Among them, 1 bit is unused in the main system information MIB of PBCH. The upper three bits of the SSB index are not needed because the SSB index is only up to 7 in FR1, which has been completely determined by the demodulation reference signal DMRS of PBCH. These three bits are used to indicate when a maximum of 64 SSBs can be sent in FR2. These three bits are not needed for FR1, but one of the bits is used in combination with the SSB subcarrier offset to indicate the subcarrier-level offset between the physical resource block PRB carrying the SSB and the carrier PRB, which has been used in low frequencies. Therefore, for FR1 (i.e., frequency bands below 6 GHz), there are still 2 bits that are not used.

[0094] Example 1: The initial BWP0 indicated by pdcch-ConfigSIB1 in the SSB is not a candidate BWP (ie, there is no need to indicate BWP0).

[0095] Consider two types of terminal capabilities, such as Figure 2 As shown, in addition to BWP0, there are two BWPs (set as BWP1 and BWP2) that can provide data transmission for terminals with two capabilities. Since two low-cost terminal capabilities X and Y are considered, each BWP may not support any terminal capability type, may support one terminal capability type, or may support two terminal capability types. There are three states in total, and there are 9 combination states of terminal capabilities allowed to be accessed by the two candidate BWPs, as shown in Table 1.

[0096]

[0097] Table 1 Combination status when there are 2 candidate BWPs

[0098] Since there are 3 bits available in the PBCH for the low frequency band, only 8 states can be indicated. Therefore, the above states need to be deleted.

[0099] Specifically, by predefining the relationship between the terminal capability type allowed to access and the position of the candidate BWP, the combined indication states to be indicated are reduced. For example, when the terminal capabilities supported by multiple candidate BWPs are different (including not supporting any capability, which means that the BWP is not allocated as an available BWP for low-cost terminals, such as one BWP supporting capability X, one BWP supporting capability Y, or only one BWP supporting capability X, and the other BWP does not exist, that is, it does not support any low-cost terminal), predefining the corresponding order of multiple BWPs and terminal capability types can reduce the states to be indicated.

[0100] For example, in Table 1, the third column and the fifth column are combined into one indication state, and / or the fourth column and the eighth column are combined into one indication state, and / or the sixth column and the ninth column are combined into one indication state; and the position of the BWP that allows access to low-cost terminal capability X is arranged at the top, and the position of the BWP that allows access to low-cost terminal capability Y is arranged at the bottom to realize the indication of the corresponding state. For example, for the third column (indicating that BWP1 allows capability X, and BWP2 does not allow access to low-cost terminals) and the fifth column (indicating that BWP1 does not allow access to low-cost terminals, and BWP2 allows capability X), a BWP is reserved for the network-side device to indicate low capability X, so only one state can be retained.

[0101] After merging and deleting 3 states, 6 states are left. The 3 reserved bits of PBCH can be used to indicate the low-cost terminal capabilities allowed to access by the 2 candidate BWPs.

[0102] Example 2: The initial BWP0 indicated by pdcch-ConfigSIB1 in the SSB is a candidate BWP (ie, BWP0 needs to be indicated).

[0103] like Figure 3 As shown, there are three candidate BWPs including BWP0 to be indicated. Since two terminal capabilities X and Y are considered, each candidate BWP may not support any terminal capability, may support one capability, or may support two capabilities. There are three states in total. There are 27 combined indication states for the three candidate BWPs to be indicated. With a indicating that low-cost terminals are not allowed to access, b indicating that the low-cost terminal capability allowed to access is X, and c indicating that the low-cost terminal capability allowed to access is Y, the 27 combined states are shown in Table 2.

[0104]

[0105] Table 2 Combination status when there are 3 candidate BWPs

[0106] According to the same method as in Example 1 (i.e., by predefining the relationship between the capabilities of low-cost terminals allowed to access and the positions of candidate BWPs to reduce the combination states to be indicated), 9 states can be deleted, but there are still 18 states to be indicated. For the 3-bit 8 states of PBCH, the indication cannot be completed, and further compression states are required.

[0107] Considering the need for coexistence, BWP0 needs to focus on indicating whether it can access low-cost terminals. Therefore, the state of BWP0 can be compressed, that is, BWP0 only considers two categories: not allowing access to low-cost terminals and allowing access to low-cost terminals.

[0108] For example, not allowing access to low-cost terminals is represented by a, and allowing access to low-cost terminals is represented by e, so there are 2*3*3=18 states in total, as shown in Table 3.

[0109]

[0110] Table 3 Combination status of 3 candidate BWPs

[0111] When the state is to allow access to low-cost terminals, the low-cost terminals will determine the access priority of BWP0 based on whether there are other BWPs available for access. For example, for a terminal with low-cost capability X, when it determines that BWP1 is configured, it will prioritize access to BWP1, and if BWP1 is not configured, it will access on BWP0. Or when the bandwidth of BWP0 and BWP1 is not greater than the bandwidth of low-cost capability X, the ratio of the two BWPs to be accessed can be set, and which BWP to access can be determined based on a random number.

[0112] Since 3 bits in PBCH can only indicate 8 states, the states in Table 3 still need to be compressed. According to the same method as in Example 1 (i.e., by predefining the relationship between the capabilities of low-cost terminals allowed to access and the positions of candidate BWPs, to reduce the combined indication states to be indicated), 6 states can be deleted (including the third and fifth columns combined, the fourth and eighth columns combined, the seventh and ninth columns combined, the twelfth and fourteenth columns combined, the thirteenth and seventeenth columns combined, and the sixteenth and eighteenth columns combined), leaving 12 states, as shown in Table 4.

[0113]

[0114] Table 4

[0115] abb, acc, ebb, ecc. The four states correspond to the situation where both BWP1 and BWP2 support the same low-cost terminal capability. Considering that the terminal can only select one BWP for access at the same time, and will not access two BWPs at the same time, these four states provide a larger capacity for the corresponding low-cost terminal capability.

[0116] Therefore, the network notifying abb at a certain moment is equivalent to notifying aba or aab. The terminal either chooses BWP1 access, which is equivalent to aba, or chooses BWP2 access, which is equivalent to aab. However, the difference is that the network capacity is larger.

[0117] Therefore, the radio frame position where the PBCH is located is associated with the low-cost terminal capability allowed to access by the candidate BWP indicated by the reserved bit of the PBCH, thereby further compressing the state.

[0118] The four states abb, acc, ebb, and ecc are indicated as shown in Table 5; the 12 states are compressed into 8 states.

[0119]

[0120] Table 5

[0121] The network side device first determines the current terminal load status and which status to use. If it is determined to be aaa, abc, eaa, ebc among the 12 states, SSB can be sent in any wireless frame. If it is determined to be aac, aba, eba, eac, it is sent in odd frames.

[0122] If it is abb, it indicates the state of 010, and the aab and aba states can be sent alternately. Since the wireless frame where the SSB is located will determine the physical layer bit content of the PBCH, the period of the PBCH is 80ms, and its content does not change within 80ms; the wireless frame sent by the SSB can be changed in different 80ms. In this way, the terminals accessed at different times will be distributed to BWP1 and BWP2, and the effect of indicating the abb state can be achieved.

[0123] like Figure 4 As shown, an embodiment of the present invention further provides an access processing method, which is applied to a terminal, comprising:

[0124] Step 41, receiving a physical broadcast channel PBCH, wherein the N bits in the PBCH are used to indicate the M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type that each candidate BWP allows access to; wherein N and M are integers greater than or equal to 1 respectively;

[0125] The terminal capability type does not specifically refer to a clear type definition, but may be an identifier of a terminal consisting of a set of capabilities of the terminal in different aspects, or a category of the terminal (UE category).

[0126] Step 42: Determine an accessible candidate BWP according to the PBCH.

[0127] It should be noted that the terminal capability types allowed to be accessed by the candidate BWP include: whether to allow access to low-cost terminals, and the low-cost terminal capabilities allowed to be accessed (if access to low-cost terminals is allowed).

[0128] Optionally, in an embodiment of the present invention, the above-mentioned N bits are unused bits in PBCH.

[0129] As an optional embodiment, considering that the reserved bits are limited, the time-frequency resource positions of the M candidate BWPs are determined by predefinition. For example, just above and below BWP0. Among them, BWP0 is the initial BWP0 indicated by pdcch-ConfigSIB1 in the SSB. Alternatively, the time-frequency resource positions of the M candidate BWPs have a predefined relationship with the time-frequency resource positions of the control resource set of the type 0 physical downlink control channel indicated by the main system information block carried by the PBCH (that is, the CORESET of type0-PDCCH indicated by the MIB carried by the PBCH). For example, the CORESET of type0-PDCCH is CORESET#0. For another example, the CORESET of Type0-PDCCH is indicated by pdcch-ConfigSIB1 of the MIB.

[0130] As another optional embodiment, the bandwidth size of the candidate BWP is related to the terminal capability that the candidate BWP allows access to; that is, the bandwidth size can vary with the indicated capability. For example, if the candidate BWP allows access to a low-cost terminal capability of capability X, then the corresponding candidate BWP bandwidth is 10MHz; for another example, if the candidate BWP allows access to a low-cost terminal capability of capability Y, then the corresponding candidate BWP bandwidth is 20MHz. In other words, the low-cost terminal capability can correspond to a specific bandwidth.

[0131] As an optional embodiment, the N bit in the PBCH is used to indicate the combined state of the terminal capability types allowed to access by each candidate BWP. The combined state here means that each BWP has a state of whether to allow access by a terminal with a specific capability, and the states of each BWP are indicated together, which is called a combined state.

[0132] For example, if the number of states that the N reserved bits can indicate is a first value, and the number of combined states of the low-cost terminal capabilities that each candidate BWP allows access to is a second value, and when the first value is less than the second value, the states of the low-cost terminal capabilities that each candidate BWP allows access to are required to be compressed and deleted so that the first value is greater than or equal to the second value.

[0133] When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP.

[0134] For example, when a combined state includes: BWP1 allows access by terminals with capability X, and BWP2 does not allow access by low-capability terminals; and BWP1 does not allow access by low-capability terminals, and BWP2 allows access by terminals with capability X, then for the network, a BWP is reserved for supporting low-cost terminal capability X, so only one state can be indicated; the value of the N bit is "01" to indicate the combined state. At this time, it is agreed that when only terminals with capability X are allowed to access, this BWP is BWP1. Then only one indication is needed for this state. No two indications are needed to distinguish which BWP supports the access of terminals with capability X.

[0135] As an optional embodiment, the state of the terminal capability type allowed to access by the candidate BWP includes at least one of the following:

[0136] Allow low-capability terminals to access;

[0137] Low-capability terminals are not allowed to access;

[0138] Allow low-capability terminal type 1 access;

[0139] Allow low-capability terminal type 2 access.

[0140] Optionally, the manner of indicating the combination state by using N bits includes at least one of the following:

[0141] For a specific candidate BWP, it indicates whether the specific candidate BWP allows access to low-cost terminals; that is, the state of BWP0 is compressed to consider two types of BWP0: one that only supports low-cost terminals and the other that does not support low-cost terminals;

[0142] Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to be accessed by each candidate BWP indicated by the N bit of the PBCH; for example, the same value of the reserved bit in the PBCH sent on the even frame and the PBCH sent on the odd frame can indicate different terminal capability types;

[0143] The relationship between the terminal capability types allowed to access and the positions of the candidate BWPs is predefined. For example, when the terminal capability types supported by multiple candidate BWPs are different, the corresponding order of the multiple candidate BWPs and the terminal capability types is predefined.

[0144] As an optional embodiment, step 42 includes:

[0145] The candidate BWP that the terminal can access is determined according to at least one of the N-bit indication of the PBCH, the radio frame position where the PBCH is located, and the position of the candidate BWP.

[0146] In summary, in the embodiment of the present invention, N bits of the PBCH are used to simultaneously indicate the candidate BWPs and the low-cost terminal capabilities that each candidate BWP is allowed to access, so that more status indications can be achieved with high indication efficiency.

[0147] like Figure 5 As shown, an embodiment of the present invention further provides an indication device, which is applied to a network side device, including:

[0148] A sending module 51 is used to send a physical broadcast channel PBCH, where N bits in the PBCH are used to indicate M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type that each candidate BWP allows access to;

[0149] Wherein, N and M are integers greater than or equal to 1 respectively.

[0150] As an optional embodiment, the time-frequency resource positions of the M candidate BWPs are determined by predefinition;

[0151] Alternatively, there is a predefined relationship between the time-frequency resource positions of the M candidate BWPs and the time-frequency resource positions of the control resource set of the type 0 physical downlink control channel indicated by the main system information block carried by the PBCH.

[0152] As an optional embodiment, the bandwidth size of the candidate BWP is related to the capability of the terminal that the candidate BWP is allowed to access.

[0153] As an optional embodiment, the N bits in the PBCH are used to indicate the combined state of the terminal capability types allowed to be accessed by each candidate BWP;

[0154] When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP.

[0155] As an optional embodiment, the state of the terminal capability type allowed to access by the candidate BWP includes at least one of the following:

[0156] Allow low-capability terminals to access;

[0157] Low-capability terminals are not allowed to access;

[0158] Allow low-capability terminal type 1 access;

[0159] Allow low-capability terminal type 2 access.

[0160] As an optional embodiment, the manner of indicating the combination state through N bits includes at least one of the following:

[0161] For a specific candidate BWP, indicating whether the specific candidate BWP allows access to the low-cost terminal;

[0162] Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to access by each candidate BWP indicated by the N bit of the PBCH;

[0163] The relationship between the terminal capability type allowed to access and the location of the candidate BWP is predefined.

[0164] In the embodiment of the present invention, N bits of the PBCH are used to simultaneously indicate the candidate BWPs and the terminal capability types that each candidate BWP is allowed to access, so that more status indications can be achieved with high indication efficiency.

[0165] It should be noted that the indication device provided in the embodiment of the present invention is a device capable of executing the above indication method, and all embodiments of the above indication method are applicable to the device and can achieve the same or similar beneficial effects.

[0166] like Figure 6 As shown, an embodiment of the present invention further provides a network side device, including a processor 600 and a transceiver 610, wherein the transceiver 610 receives and sends data under the control of the processor 600, and the processor 600 is used to perform the following operations:

[0167] Send a physical broadcast channel PBCH, where N bits in the PBCH are used to indicate M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type that each candidate BWP allows access to;

[0168] Wherein, N and M are integers greater than or equal to 1 respectively.

[0169] As an optional embodiment, the time-frequency resource positions of the M candidate BWPs are determined by predefinition;

[0170] Alternatively, there is a predefined relationship between the time-frequency resource positions of the M candidate BWPs and the time-frequency resource positions of the control resource set of the type 0 physical downlink control channel indicated by the main system information block carried by the PBCH.

[0171] As an optional embodiment, the bandwidth size of the candidate BWP is related to the capability of the terminal that the candidate BWP is allowed to access.

[0172] As an optional embodiment, the N bits in the PBCH are used to indicate the combined state of the terminal capability types allowed to be accessed by each candidate BWP;

[0173] When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP.

[0174] As an optional embodiment, the state of the terminal capability type allowed to access by the candidate BWP includes at least one of the following:

[0175] Allow low-capability terminals to access;

[0176] Low-capability terminals are not allowed to access;

[0177] Allow low-capability terminal type 1 access;

[0178] Allow low-capability terminal type 2 access.

[0179] As an optional embodiment, the manner of indicating the combination state through N bits includes at least one of the following:

[0180] For a specific candidate BWP, indicating whether the specific candidate BWP allows access to the low-cost terminal;

[0181] Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to access by each candidate BWP indicated by the N bit of the PBCH;

[0182] The relationship between the terminal capability type allowed to access and the location of the candidate BWP is predefined.

[0183] In the embodiment of the present invention, N bits of the PBCH are used to simultaneously indicate the candidate BWPs and the terminal capability types that each candidate BWP is allowed to access, so that more status indications can be achieved with high indication efficiency.

[0184] It should be noted that the network side device provided in the embodiment of the present invention is a network side device capable of executing the above-mentioned indication method, and all embodiments of the above-mentioned indication method are applicable to the network side device and can achieve the same or similar beneficial effects.

[0185] like Figure 7 As shown, an embodiment of the present invention further provides an access processing device, applied to a terminal, comprising:

[0186] The receiving module 71 is used to receive a physical broadcast channel PBCH, wherein the N bits in the PBCH are used to indicate the M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type that each candidate BWP allows access to; wherein N and M are integers greater than or equal to 1 respectively;

[0187] The determination module 72 is used to determine an accessible candidate BWP according to the PBCH.

[0188] As an optional embodiment, the time-frequency resource positions of the M candidate BWPs are determined by predefinition;

[0189] Alternatively, there is a predefined relationship between the time-frequency resource positions of the M candidate BWPs and the time-frequency resource positions of the control resource set of the type 0 physical downlink control channel indicated by the main system information block carried by the PBCH.

[0190] As an optional embodiment, the bandwidth size of the candidate BWP is related to the capability of the terminal that the candidate BWP is allowed to access.

[0191] As an optional embodiment, the N bits in the PBCH are used to indicate the combined state of the terminal capability types allowed to be accessed by each candidate BWP;

[0192] When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP.

[0193] As an optional embodiment, the state of the terminal capability type allowed to access by the candidate BWP includes at least one of the following:

[0194] Allow low-capability terminals to access;

[0195] Low-capability terminals are not allowed to access;

[0196] Allow low-capability terminal type 1 access;

[0197] Allow low-capability terminal type 2 access.

[0198] As an optional embodiment, the manner of indicating the combination state through N bits includes at least one of the following:

[0199] For a specific candidate BWP, indicating whether the specific candidate BWP allows access to the low-cost terminal;

[0200] Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to access by each candidate BWP indicated by the N bit of the PBCH;

[0201] The relationship between the terminal capability type allowed to access and the location of the candidate BWP is predefined.

[0202] As an optional embodiment, the determining module:

[0203] The determination submodule is used to determine the candidate BWP that the terminal can access according to at least one of the N-bit indication of the PBCH, the radio frame position where the PBCH is located, and the position of the candidate BWP.

[0204] In the embodiment of the present invention, N bits of the PBCH are used to simultaneously indicate the candidate BWPs and the terminal capability types that each candidate BWP is allowed to access, so that more status indications can be achieved with high indication efficiency.

[0205] It should be noted that the access processing device provided in the embodiment of the present invention is a device capable of executing the above-mentioned access processing method, and all embodiments of the above-mentioned access processing method are applicable to the device and can achieve the same or similar beneficial effects.

[0206] like Figure 8 As shown, an embodiment of the present invention further provides a terminal, including a processor 800 and a transceiver 810, the terminal also includes a user interface 820, the transceiver 810 receives and sends data under the control of the processor 800, and the processor 800 is used to perform the following operations:

[0207] Receiving a physical broadcast channel PBCH, wherein N bits in the PBCH are used to indicate M candidate bandwidth parts BWPs that can be used by the terminal and the terminal capability type that each candidate BWP allows access to; wherein N and M are integers greater than or equal to 1 respectively;

[0208] According to the PBCH, an accessible candidate BWP is determined.

[0209] As an optional embodiment, the time-frequency resource positions of the M candidate BWPs are determined by predefinition;

[0210] Alternatively, there is a predefined relationship between the time-frequency resource positions of the M candidate BWPs and the time-frequency resource positions of the control resource set of the type 0 physical downlink control channel indicated by the main system information block carried by the PBCH.

[0211] As an optional embodiment, the bandwidth size of the candidate BWP is related to the capability of the terminal that the candidate BWP is allowed to access.

[0212] As an optional embodiment, the N bits in the PBCH are used to indicate the combined state of the terminal capability types allowed to be accessed by each candidate BWP;

[0213] When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP.

[0214] As an optional embodiment, the state of the terminal capability type allowed to access by the candidate BWP includes at least one of the following:

[0215] Allow low-capability terminals to access;

[0216] Low-capability terminals are not allowed to access;

[0217] Allow low-capability terminal type 1 access;

[0218] Allow low-capability terminal type 2 access.

[0219] As an optional embodiment, the manner of indicating the combination state through N bits includes at least one of the following:

[0220] For a specific candidate BWP, indicating whether the specific candidate BWP allows access to the low-cost terminal;

[0221] Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to access by each candidate BWP indicated by the N bit of the PBCH;

[0222] The relationship between the terminal capability type allowed to access and the location of the candidate BWP is predefined.

[0223] As an optional embodiment, the processor further includes:

[0224] The candidate BWP that the terminal can access is determined according to at least one of the N-bit indication of the PBCH, the radio frame position where the PBCH is located, and the position of the candidate BWP.

[0225] In the embodiment of the present invention, N bits of the PBCH are used to simultaneously indicate the candidate BWPs and the terminal capability types that each candidate BWP is allowed to access, so that more status indications can be achieved with high indication efficiency.

[0226] It should be noted that the terminal provided in the embodiment of the present invention is a terminal capable of executing the above-mentioned access processing method, and all embodiments of the above-mentioned access processing method are applicable to the terminal and can achieve the same or similar beneficial effects.

[0227] An embodiment of the present invention also provides a communication device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the various processes in the indication method or access processing method embodiment as described above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0228] The embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, each process in the above-mentioned indication method or access processing method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0229] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.

[0230] 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 program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A device that specifies functions in one or more processes and / or one or more blocks.

[0231] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable storage medium produce a paper product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0232] These computer program instructions may also be loaded onto a computer or other programmable data processing device so that the computer or other programmable device executes a series of operating steps to produce a computer-implemented process, thereby providing instructions executed on the computer or other programmable device for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0233] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An indication method, applied to a network side device, characterized in that: include: Send a physical broadcast channel PBCH, where N bits in the PBCH are used to indicate M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type that each candidate BWP allows access to; Wherein, N and M are integers greater than or equal to 1 respectively; The N bit in the PBCH is used to indicate the combined state of the terminal capability types allowed to access by each candidate BWP; When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP; The manner of indicating the combination state by N bits includes at least one of the following: Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to access by each candidate BWP indicated by the N bit of the PBCH; The relationship between the terminal capability type allowed to access and the location of the candidate BWP is predefined.

2. The method according to claim 1, characterized in that The time-frequency resource positions of the M candidate BWPs are determined by predefinition; Alternatively, there is a predefined relationship between the time-frequency resource positions of the M candidate BWPs and the time-frequency resource positions of the control resource set of the type 0 physical downlink control channel indicated by the main system information block carried by the PBCH.

3. The method according to claim 1, characterized in that The bandwidth size of the candidate BWP is related to the capability of the terminal that is allowed to access the candidate BWP.

4. The method according to claim 1, characterized in that: The state of the terminal capability type allowed to access by the candidate BWP includes at least one of the following: Allow low-capability terminals to access; Low-capability terminals are not allowed to access; Allow low-capability terminal type 1 access; Allow low-capability terminal type 2 access.

5. An access processing method, applied to a terminal, characterized in that: include: Receiving a physical broadcast channel PBCH, wherein N bits in the PBCH are used to indicate M candidate bandwidth parts BWPs that can be used by the terminal and the terminal capability type that each candidate BWP allows access to; wherein N and M are integers greater than or equal to 1 respectively; Determine, according to the PBCH, a candidate BWP that can be accessed; The N bit in the PBCH is used to indicate the combined state of the terminal capability types allowed to access by each candidate BWP; When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP; The manner of indicating the combination state by N bits includes at least one of the following: Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to access by each candidate BWP indicated by the N bit of the PBCH; The relationship between the terminal capability type allowed to access and the location of the candidate BWP is predefined.

6. The method according to claim 5, characterized in that The time-frequency resource positions of the M candidate BWPs are determined by predefinition; Alternatively, there is a predefined relationship between the time-frequency resource positions of the M candidate BWPs and the time-frequency resource positions of the control resource set of the type 0 physical downlink control channel indicated by the main system information block carried by the PBCH.

7. The method according to claim 5, characterized in that The bandwidth size of the candidate BWP is related to the capability of the terminal that is allowed to access the candidate BWP.

8. The method according to claim 5, characterized in that The state of the terminal capability type allowed to access by the candidate BWP includes at least one of the following: Allow low-capability terminals to access; Low-capability terminals are not allowed to access; Allow low-capability terminal type 1 access; Allow low-capability terminal type 2 access.

9. The method according to claim 5, characterized in that The determining, according to the PBCH, a candidate BWP that can be accessed includes: The candidate BWP that the terminal can access is determined according to at least one of the N-bit indication of the PBCH, the radio frame position where the PBCH is located, and the position of the candidate BWP.

10. An indication device, applied to a network side device, characterized in that: include: A sending module, used for sending a physical broadcast channel PBCH, wherein the N bits in the PBCH are used for indicating the M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type that each candidate BWP is allowed to access; Wherein, N and M are integers greater than or equal to 1 respectively; The N bit in the PBCH is used to indicate the combined state of the terminal capability types allowed to access by each candidate BWP; When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP; The manner of indicating the combination state by N bits includes at least one of the following: Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to access by each candidate BWP indicated by the N bit of the PBCH; The relationship between the terminal capability type allowed to access and the location of the candidate BWP is predefined.

11. A network side device, comprising a processor and a transceiver, wherein the transceiver receives and sends data under the control of the processor, characterized in that: The processor is configured to perform the following operations: Send a physical broadcast channel PBCH, where N bits in the PBCH are used to indicate M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type that each candidate BWP allows access to; Wherein, N and M are integers greater than or equal to 1 respectively; The N bit in the PBCH is used to indicate the combined state of the terminal capability types allowed to access by each candidate BWP; When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP; The manner of indicating the combination state by N bits includes at least one of the following: Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to access by each candidate BWP indicated by the N bit of the PBCH; The relationship between the terminal capability type allowed to access and the location of the candidate BWP is predefined.

12. An access processing device, applied to a terminal, characterized in that: include: A receiving module, used to receive a physical broadcast channel PBCH, wherein the N bits in the PBCH are used to indicate the M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type that each candidate BWP allows access to; wherein N and M are integers greater than or equal to 1 respectively; A determination module, configured to determine an accessible candidate BWP according to the PBCH; The N bit in the PBCH is used to indicate the combined state of the terminal capability types allowed to access by each candidate BWP; When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP; The manner of indicating the combination state by N bits includes at least one of the following: Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to access by each candidate BWP indicated by the N bit of the PBCH; The relationship between the terminal capability type allowed to access and the location of the candidate BWP is predefined.

13. A terminal comprising a processor and a transceiver, wherein the transceiver receives and sends data under the control of the processor, characterized in that: The processor is configured to perform the following operations: Receiving a physical broadcast channel PBCH, where N in the PBCH is used to indicate M candidate bandwidth parts BWP that can be used by the terminal and the terminal capability type that each candidate BWP allows access to; wherein N and M are integers greater than or equal to 1 respectively; Determine, according to the PBCH, a candidate BWP that can be accessed; The N bit in the PBCH is used to indicate the combined state of the terminal capability types allowed to access by each candidate BWP; When a combined state includes different states, at least two states in the combined state are associated with the candidate BWP; The manner of indicating the combination state by N bits includes at least one of the following: Associating the radio frame position of the PBCH with the state of the terminal capability type allowed to access by each candidate BWP indicated by the N bit of the PBCH; The relationship between the terminal capability type allowed to access and the location of the candidate BWP is predefined.

14. A communication device comprising a memory, a processor, and a program stored in the memory and executable on the processor; characterized in that: When the processor executes the program, the indication method as described in any one of claims 1-4 is implemented; or, when the processor executes the program, the access processing method as described in any one of claims 5-9 is implemented.

15. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the indication method as described in any one of claims 1 to 4 are implemented; or, when the program is executed by a processor, the steps of the access processing method as described in any one of claims 5 to 9 are implemented.

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