Carrier allocation method, base station, user equipment, computer readable storage medium

Abstract

A carrier allocation method, a base station, a user equipment and a computer readable storage medium are provided. The carrier allocation method comprises the following steps: receiving carrier configuration information issued by a base station, wherein the carrier configuration information comprises a fixed carrier set corresponding to each coverage level and a variable carrier set; receiving carrier update information issued by the base station; the carrier update information is generated by the base station after updating the variable carrier members in the fixed carrier set when the base station detects that a preset condition is met; and obtaining the variable carrier members in the updated fixed carrier set according to the carrier update information. The above scheme can adjust the variable carrier members in the fixed carrier set under the coverage level, and realize the camping of multiple user equipments.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless communication, in particular to a carrier allocation method, a base station, a user equipment and a computer readable storage medium. BACKGROUND

[0002] In the current protocol, NB-IOT user equipment (User Equipment, UE) determines a carrier for paging listening according to its own identification information and network broadcast parameters, combined with a specific formula. In the future, NB-IOT will introduce carrier-level paging parameter configuration, that is, different carriers will be configured by different paging parameters, and user equipment of different services needs to perform paging listening on a specific carrier; or, user equipment can select a carrier with a specific paging configuration for paging listening according to its own state and environment (such as coverage level, RSRP size, etc.). In order to realize the paging listening described above, the existing implementation method is to divide the carriers of a cell into multiple carrier sets (subsets), for example, different carrier sets correspond to different coverage levels.

[0003] With the movement of UE, the number of UEs under different coverage levels will change. When the number of UEs under a small coverage level increases, it will cause too large load, and further cause that the number of carriers of the carrier set corresponding to the coverage level cannot support so many UEs to camp. SUMMARY

[0004] The embodiment of the present application solves the technical problem that when the number of UEs under a coverage level is large, all UEs cannot be camped.

[0005] In order to solve the above technical problem, the embodiment of the present application provides a carrier allocation method, comprising: receiving carrier configuration information issued by a base station, wherein the carrier configuration information comprises: a fixed carrier set corresponding to each coverage level, and a variable carrier set; receiving carrier update information issued by the base station; the carrier update information is generated by the base station after updating the variable carrier members allocated in the fixed carrier set when detecting that a preset condition is met; and acquiring the variable carrier members in the fixed carrier set after updating according to the carrier update information.

[0006] Optionally, the receiving the carrier configuration information issued by the base station comprises: receiving the carrier configuration information issued by the base station through a system broadcast message.

[0007] Optionally, the receiving the carrier update information comprises: receiving paging downlink control information sent by the base station, wherein N bits exist in the paging downlink control information, N is the number of carrier members in the variable carrier set; and the values of the N bits are used to indicate whether the carrier members in the variable carrier set are in the fixed carrier set corresponding to the target coverage level under the target coverage level corresponding to the carrier carrying the paging downlink control information.

[0008] Optionally, the receiving the carrier update information comprises: receiving a paging message sent by the base station, and obtaining carrier update indication information from the paging message; and receiving a system message sent by the base station, and obtaining the carrier update information from the system message.

[0009] Optionally, the paging message comprises a specific information element, and the specific information element is used to indicate whether the variable carrier members in the fixed carrier set corresponding to each coverage level change.

[0010] Optionally, the receiving the carrier update information comprises: receiving paging downlink control information sent by the base station, and obtaining carrier update indication information from the paging message; and receiving a system message sent by the base station, and obtaining the carrier update information from the system message.

[0011] Optionally, the paging downlink control information comprises a specific information element, and the specific information element is used to indicate whether the variable carrier members in the fixed carrier set corresponding to each coverage level change.

[0012] Optionally, the receiving the carrier update information comprises: sending a coverage level change message to the base station; and receiving the carrier update information corresponding to the transformed coverage level sent by the base station.

[0013] The embodiment of the application further provides a user equipment, comprising: a carrier configuration information receiving unit, configured to receive carrier configuration information sent by a base station, wherein the carrier configuration information comprises: a fixed carrier set corresponding to each coverage level, and a variable carrier set; a carrier update information receiving unit, configured to receive carrier update information sent by the base station; the carrier update information is generated by the base station after updating variable carrier members in the fixed carrier set when a preset condition is met; and a obtaining unit, configured to obtain the variable carrier members in the updated fixed carrier set according to the carrier update information.

[0014] The embodiment of the application further provides another user equipment, comprising a memory and a processor, wherein the memory stores a computer program capable of running on the processor, and the processor executes the steps of the carrier allocation method described above when running the computer program.

[0015] To solve the above technical problems, the embodiment of the present application provides another carrier allocation method, comprising: issuing carrier configuration information to a user equipment, the carrier configuration information comprising: a fixed carrier set corresponding to each coverage level, and a variable carrier set; when detecting that a preset condition is met, updating a variable carrier member allocated in the fixed carrier set, and sending carrier update information to the user equipment to inform the user equipment that the allocation of the carrier member in the variable carrier set is updated.

[0016] Optionally, the issuing of the carrier configuration information to the user equipment comprises: issuing the carrier configuration information to the user equipment through a system broadcast message.

[0017] Optionally, the sending of the carrier update information to the user equipment comprises: sending paging downlink control information to the user equipment, N bits existing in the paging downlink control information, N being the number of carrier members in the variable carrier set; the value of the N bits being used to indicate whether the carrier member in the variable carrier set is in the fixed carrier set corresponding to a target coverage level under the target coverage level corresponding to the carrier carrying the paging downlink control information.

[0018] Optionally, the sending of the carrier update information to the user equipment comprises: sending a paging message to the user equipment, the paging message comprising carrier update indication information; and sending a system message to the user equipment, the system message comprising the carrier update information.

[0019] Optionally, a specific information element is added in the paging message, the specific information element being used to indicate whether the variable carrier member in the fixed carrier set corresponding to each coverage level is changed.

[0020] Optionally, the sending of the carrier update information to the user equipment comprises: sending paging downlink control information to the user equipment, the paging downlink control information comprising carrier update indication information; and sending a system message to the user equipment, the system message comprising the carrier update information.

[0021] Optionally, a specific information element is added in the downlink control information, the specific information element being used to indicate whether the variable carrier member in the fixed carrier set corresponding to each coverage level is changed.

[0022] Optionally, the sending of the carrier update information to the user equipment comprises: when receiving a coverage level change message sent by the user equipment, sending the carrier update information corresponding to the changed coverage level to the user equipment.

[0023] The embodiment of the present application further provides a base station, comprising: a carrier configuration information issuing unit, configured to issue carrier configuration information to a user equipment, wherein the carrier configuration information comprises: a fixed carrier set corresponding to each coverage level and a variable carrier set; an updating unit, configured to update a variable carrier member in the fixed carrier set when a preset condition is met; and a carrier updating information sending unit, configured to send carrier updating information to the user equipment to inform the user equipment that the variable carrier member in the fixed carrier set is updated.

[0024] The embodiment of the present application further provides another base station, comprising a memory and a processor, wherein the memory stores a computer program capable of running on the processor, and the processor executes steps of the carrier allocation method according to any one of the above embodiments when running the computer program.

[0025] The embodiment of the present application further provides a computer readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, and stores a computer program, wherein the computer program runs on a processor to execute steps of the carrier allocation method according to any one of the above embodiments.

[0026] Compared with the prior art, the technical scheme of the embodiment of the present application has the following beneficial effects:

[0027] When receiving the carrier updating information issued by the base station, the variable carrier member in the updated fixed carrier set is obtained according to the carrier updating information. Since the carrier updating information is sent by the base station when the preset condition is met, the base station can adjust the variable carrier member in the fixed carrier set under the coverage level when the number of user equipments under the coverage level changes, thereby realizing the camping of multiple user equipments.

[0028] When the preset condition is met, the variable carrier member in the fixed carrier set is updated, and the user equipment is informed that the variable carrier member in the fixed carrier set is updated, thereby adjusting the variable carrier member in the fixed carrier set under the coverage level when the number of user equipments under the coverage level changes, and realizing the camping of multiple user equipments. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a flowchart of a carrier allocation method in the embodiment of the present application;

[0030] Figure 2 is a flowchart of another carrier allocation method in the embodiment of the present application;

[0031] Figure 3 is a structural schematic diagram of a base station in the embodiment of the present application;

[0032] Figure 4 Fig. 1 is a structural schematic diagram of a user equipment in an embodiment of the present application. DETAILED DESCRIPTION

[0033] As described above, in the prior art, the carriers of a cell are divided into multiple carrier sets, different carrier sets correspond to different coverage levels, and the carrier sets corresponding to different coverage levels are fixed. However, with the movement of the UE, the number of UEs under different coverage levels will change. When the number of UEs under a coverage level increases, the load will be too large, and thus the carrier set corresponding to the coverage level cannot support so many UEs to camp.

[0034] In an embodiment of the present application, when the carrier update information issued by the base station is received, the variable carrier members in the fixed carrier set are obtained according to the carrier update information. Since the carrier update information is sent by the base station after detecting that the preset condition is met, the base station can adjust the variable carrier members in the fixed carrier set under the coverage level when the number of UEs under the coverage level changes, thereby realizing the camping of multiple UEs.

[0035] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0036] Step S101, issuing carrier configuration information to the user equipment.

[0037] In a specific implementation, the base station can configure a fixed carrier set for each coverage level, and configure a common variable carrier set. In an embodiment of the present application, the common variable carrier set is a carrier set other than the fixed carrier set of each coverage level.

[0038] For example, the coverage levels include coverage level 1, coverage level 2 and coverage level 3. A one-to-one corresponding fixed carrier set is configured for coverage level 1, coverage level 2 and coverage level 3, and a common variable carrier set is configured.

[0039] In a specific implementation, the base station can issue the carrier configuration information to the user equipment through a system broadcast message (SIB). The carrier configuration information issued by the base station to the user equipment can include the fixed carrier set corresponding to each coverage level, and the common variable carrier set.

[0040] After receiving the system broadcast message issued by the base station, the user equipment can obtain the carrier configuration information configured by the base station, and then determine the carrier members corresponding to the fixed carrier set and the carrier members corresponding to the variable carrier set of each coverage level. The user equipment determines all carrier members corresponding to the current coverage level according to the carrier members of the fixed carrier set configured by the current coverage level and the paging downlink control information (paging DCI) received under the current coverage level.

[0041] In step S102, when it is detected that the preset condition is met, the variable carrier members allocated in the fixed carrier set are updated, and carrier update information is sent to the user equipment.

[0042] In actual application, the signal quality of the user equipment changes, so the corresponding coverage level can change accordingly, and the number of user equipment under a certain coverage level also changes accordingly.

[0043] In specific implementation, when the base station detects that the preset condition is met, the variable carrier members allocated in the fixed carrier set can be updated, and the carrier update information is sent to the user equipment. After receiving the carrier update information, the user equipment can know that the variable carrier members in the fixed carrier set are updated.

[0044] In the embodiment of the application, the preset condition can be that the number of user equipment under a certain coverage level changes.

[0045] It is known in actual application that the paging DCI is used to schedule the paging message, and the UE receives the paging DCI by periodically monitoring the paging occasion (PO) in the idle state. In the current protocol, the paging DCI is the DCI format 2 scrambled by the P-RNTI, and when the paging DCI is used to indicate the direct indication information, many bits in the paging DCI are not utilized.

[0046] In the embodiment of the application, when the paging DCI is used to indicate the direct indication information, the base station can send the paging DCI to the user. There are N bits in the paging downlink control information, and N is the number of carrier members in the variable carrier set; the values of the N bits are used to indicate whether the carrier members in the variable carrier set are in the fixed carrier set corresponding to the target coverage level under the target coverage level corresponding to the carrier carrying the paging downlink control information.

[0047] If the bit corresponding to a carrier member in the variable carrier set is 0, it means that the carrier member does not belong to the coverage level; if the bit corresponding to a carrier member in the variable carrier set is 1, it means that the carrier member belongs to the coverage level.

[0048] For example, under the coverage level 1, the bit corresponding to the carrier member 1 in the variable carrier set is 1, which means that the carrier member 1 belongs to the coverage level 1, i.e. the user equipment in the coverage level 1 can use the carrier member 1.

[0049] The carrier allocation method provided in the above embodiments of the application is described below by way of example.

[0050] For example, a cell has a total of 12 subcarriers, which are {C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12} in sequence, there are three coverage levels {CEL1, CEL2, CEL3}, and the network is configured with the fixed carrier set for each coverage level as follows: CEL1 {C1, C2}; CEL2 {C3, C4}; and CEL3 {C5, C6}. The variable carrier set contains 6 subcarriers, which are {C7, C8, C9, C10, C11, C12} in sequence.

[0051] Since the variable carrier set contains 6 carriers, there are 6 bits in the paging DCI for adjusting the variable carrier set. The values of the 6 bits are used to represent the variable carrier members existing in the carrier set corresponding to the corresponding coverage level.

[0052] If the bit value corresponding to the paging DCI sent on the carrier set corresponding to the coverage level 1 is 010000, it means that the carrier used by the coverage level 1 is outside the fixed carriers C1 and C2, and also includes the variable carrier C8.

[0053] Suppose that all the carrier members (fixed carrier members and variable carrier members) of the current coverage level are: CEL1 {C1, C2, C8}; CEL2 {C3, C4, C9, C10}; and CEL3 {C5, C6, C7, C11, C12}. Then the bit values corresponding to the paging DCI sent by the base station on the carrier set corresponding to each coverage level are: CEL1: 010000; CEL2: 001100; and CEL3: 100011.

[0054] If the base station detects that the number of user equipments corresponding to CEL1 increases, the variable carrier set can be adjusted by 6 bits in the Paging DCI. Specifically, the bit values corresponding to the Paging DCI sent by the base station on the carrier set corresponding to each coverage level are changed to: CEL1: 110000; CEL2: 001100; CEL3: 000011

[0055] At this time, the carrier set members corresponding to each coverage level become: CEL1{C1, C2, C7, C8}; CEL2{C3, C4, C9, C10}; CEL3{C5, C6, C11, C12}.

[0056] In the embodiments of the present application, the fixed carrier set refers to a carrier set containing one or more fixed carriers. The base station can also add variable carriers to the fixed carrier set or update the variable carriers in the fixed carrier set.

[0057] As in the above example, the fixed carrier set corresponding to coverage level 1 includes carrier C1 and carrier C2. The base station can configure variable carrier C8 in the fixed carrier set corresponding to coverage level 1, and at this time, the fixed carrier set corresponding to coverage level 1 includes carrier C1, carrier C2, and carrier C8.

[0058] In specific implementations, the base station can send a paging message to the user equipment, and the paging message carries carrier update indication information. Then, the base station can send a system message to the user equipment, and the system message carries carrier update information.

[0059] After receiving the paging message, the user equipment can obtain the carrier update indication information therefrom, i.e., can know that the variable carrier members in the fixed carrier set have changed. Then, the user equipment can obtain the carrier update information from the received system message, i.e., can know the variable carrier members in the updated fixed carrier set.

[0060] In specific implementations, the base station can add a specific information element to the paging message sent to the user equipment, and the value of the specific information element represents whether the variable carrier members in the fixed carrier set corresponding to each coverage level have changed.

[0061] For example, if the coverage level is 3, a specific information element of 3 bits can be added to the paging message, where the 1st bit is used to indicate whether the variable carrier members in the fixed carrier set corresponding to coverage level 1 have changed, the 2nd bit is used to indicate whether the variable carrier members in the fixed carrier set corresponding to coverage level 2 have changed, and the 3rd bit is used to indicate whether the variable carrier members in the fixed carrier set corresponding to coverage level 3 have changed.

[0062] In a specific implementation, the base station can also send a paging DCI to the user equipment, and the paging DCI carries the carrier update indication information. Then, the base station can send a system message to the user equipment, and the system message carries the carrier update information.

[0063] After receiving the paging DCI, the user equipment can obtain the carrier update indication information from the paging DCI, that is, the user equipment can know that the variable carrier member in the fixed carrier set has changed. Then, the user equipment can obtain the carrier update information from the received system message, that is, the user equipment can know the variable carrier member in the updated fixed carrier set.

[0064] In a specific implementation, the paging DCI sent by the base station to the user equipment can be added with a specific information element, and the value of the specific information element can represent whether the variable carrier member in the fixed carrier set corresponding to each coverage level has changed.

[0065] For example, when the coverage level is 3, 3 bits of the specific information element can be added in the paging DCI, where the first bit is used to indicate whether the variable carrier member in the fixed carrier set corresponding to the coverage level 1 has changed, the second bit is used to indicate whether the variable carrier member in the fixed carrier set corresponding to the coverage level 2 has changed, and the third bit is used to indicate whether the variable carrier member in the fixed carrier set corresponding to the coverage level 3 has changed.

[0066] In a specific implementation, the system message issued by the base station can be an SIB 22-NB message.

[0067] In a specific implementation, when the user equipment detects that the corresponding coverage level has changed, the user equipment needs to report a coverage level change message to the base station, where the coverage level change message indicates that the corresponding coverage level has changed. After receiving the coverage level change message sent by the user equipment, the base station sends the carrier update information corresponding to the changed coverage level to the user equipment.

[0068] For example, the coverage level corresponding to the user equipment changes from the coverage level 2 to the coverage level 1. The user equipment sends a coverage level change message to the base station. After receiving the coverage level change message, the base station sends the carrier update information corresponding to the coverage level 1 to the user equipment.

[0069] The embodiment of the application also provides another carrier allocation method, which is described below by specific steps. Figure 2

[0070] In step S201, carrier configuration information issued by a base station is received.

[0071] ​In a specific implementation, the base station can configure one fixed carrier set for each coverage level and configure one common variable carrier set. In an embodiment of the present application, the common variable carrier set is a carrier set other than the fixed carrier set of each coverage level.

[0072] For example, the coverage levels include coverage level 1, coverage level 2, and coverage level 3. One-to-one corresponding fixed carrier sets are configured for coverage level 1, coverage level 2, and coverage level 3, respectively, and a common variable carrier set is configured.

[0073] In a specific implementation, the base station can issue carrier configuration information to the user equipment through a system broadcast message (SIB). The carrier configuration information issued by the base station to the user equipment can include the fixed carrier set corresponding to each coverage level and the common variable carrier set.

[0074] After receiving the system broadcast message issued by the base station, the user equipment can obtain the carrier configuration information configured by the base station therefrom, and then determine the carrier members corresponding to the fixed carrier set of each coverage level and the carrier members corresponding to the variable carrier set. The user equipment determines all carrier members corresponding to the current coverage level according to the carrier members of the fixed carrier set configured according to the current coverage level and the paging downlink control information (pagingDCI) received under the current coverage level.

[0075] Step S202, receiving carrier update information issued by the base station.

[0076] Step S203, obtaining the variable carrier members in the updated fixed carrier set according to the carrier update information.

[0077] In actual application, the signal quality of the user equipment can change, and thus the corresponding coverage level thereof can change accordingly, and the number of user equipment under a certain coverage level can also change accordingly.

[0078] In a specific implementation, when the base station detects that a preset condition is met, the variable carrier members allocated in the fixed carrier set can be updated, and carrier update information can be sent to the user equipment. After receiving the carrier update information, the user equipment can know that the variable carrier members in the fixed carrier set have been updated.

[0079] In an embodiment of the present application, the preset condition can be that the number of user equipment under a certain coverage level changes.

[0080] In practical application, it is known that the paging DCI is used for scheduling paging message, and the UE receives the paging DCI by periodically monitoring paging occasion (PO) in the idle state. In the current protocol, the paging DCI is the DCI format 2 scrambled by P-RNTI, and when the paging DCI is used for indicating direct indication information, many bits in the paging DCI are not utilized.

[0081] In the embodiment of the present application, when the paging DCI is used for indicating direct indication information, the base station can send the paging DCI to the user. There are N bits in the paging downlink control information, and N is the number of carrier members in the variable carrier set; the value of the N bits is used to indicate whether the carrier member in the variable carrier set is in the fixed carrier set corresponding to the target coverage level under the target coverage level of the carrier carrying the paging downlink control information.

[0082] Under a certain coverage level, if the bit value corresponding to the carrier member in the variable carrier set is 0, it means that the carrier member does not belong to the coverage level; if the bit value corresponding to the carrier member in the variable carrier set is 1, it means that the carrier member belongs to the coverage level.

[0083] For example, under the coverage level 1, the bit value corresponding to the carrier member 1 in the variable carrier set is 1, which means that the carrier member 1 belongs to the coverage level 1, that is, the user equipment in the coverage level 1 can use the carrier member 1.

[0084] The carrier allocation method provided in the above embodiment of the present application will be described below by way of example.

[0085] For example, a cell has a total of 12 subcarriers, which are {C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12} in turn, there are 3 coverage levels {CEL1, CEL2, CEL3}, and the fixed carrier set configured by the network for each coverage level is: CEL1 {C1, C2}; CEL2 {C3, C4}; CEL3 {C5, C6}. The variable carrier set contains 6 subcarriers, which are {C7, C8, C9, C10, C11, C12} in turn.

[0086] Since there are 6 carriers in the variable carrier set, there are 6 bits in the paging DCI for adjusting the variable carrier set. The value of the 6 bits is used to represent the variable carrier member existing in the carrier set corresponding to the corresponding coverage level.

[0087] If the bit value corresponding to the paging DCI sent by the base station on the carrier set corresponding to the coverage level 1 is 010000, it means that the carrier used by the coverage level 1 is outside the fixed carriers C1 and C2, and also includes the variable carrier C8.

[0088] Suppose that all the carrier members (fixed carrier members and variable carrier members) of the current coverage levels are: CEL1{C1, C2, C8}; CEL2{C3, C4, C9, C10}; and CEL3{C5, C6, C7, C11, C12}. The bit values corresponding to the paging DCI sent by the base station on the carrier sets corresponding to the coverage levels are: CEL1: 010000; CEL2: 001100; and CEL3: 100011.

[0089] If the base station detects that the number of user equipments corresponding to the CEL1 increases, the variable carrier set can be adjusted through the 6 bits in the paging DCI. Specifically, the bit values corresponding to the paging DCI sent by the base station on the carrier sets corresponding to the coverage levels are changed to: CEL1: 110000; CEL2: 001100; and CEL3: 000011.

[0090] At this time, the carrier set members corresponding to the coverage levels are: CEL1{C1, C2, C7, C8}; CEL2{C3, C4, C9, C10}; and CEL3{C5, C6, C11, C12}.

[0091] In the embodiments of the present application, the fixed carrier set refers to a carrier set containing one or more fixed carriers. The base station can also add variable carriers to the fixed carrier set or update the variable carriers in the fixed carrier set.

[0092] As in the above example, the fixed carrier set corresponding to the coverage level 1 includes the carrier C1 and the carrier C2. The base station can configure the variable carrier C8 in the fixed carrier set corresponding to the coverage level 1. At this time, the fixed carrier set corresponding to the coverage level 1 includes the carrier C1, the carrier C2, and the carrier C8.

[0093] In specific implementations, the base station can send a paging message to the user equipment, and the paging message carries carrier update indication information. Then, the base station can send a system message to the user equipment, and the system message carries carrier update information.

[0094] The user equipment can obtain the carrier update indication information from the paging message, and thus know that the variable carrier members in the fixed carrier set have changed. Then, the user equipment can obtain the carrier update information from the received system message, and thus know the variable carrier members in the updated fixed carrier set.

[0095] In a specific implementation, the paging message sent by the base station to the user equipment can be added with a specific information element, and the value of the specific information element can represent whether the variable carrier members in the fixed carrier set corresponding to each coverage level have changed.

[0096] For example, when the coverage level is 3, 3 bits of the specific information element can be added in the paging message, where the first bit is used to indicate whether the variable carrier members in the fixed carrier set corresponding to the coverage level 1 have changed, the second bit is used to indicate whether the variable carrier members in the fixed carrier set corresponding to the coverage level 2 have changed, and the third bit is used to indicate whether the variable carrier members in the fixed carrier set corresponding to the coverage level 3 have changed.

[0097] In a specific implementation, the base station can also send the paging DCI to the user equipment, and the paging DCI can carry the carrier update indication information. Then, the base station can send the system message to the user equipment, and the system message can carry the carrier update information.

[0098] The user equipment can obtain the carrier update indication information from the paging DCI, and thus know that the variable carrier members in the fixed carrier set have changed. Then, the user equipment can obtain the carrier update information from the received system message, and thus know the variable carrier members in the updated fixed carrier set.

[0099] In a specific implementation, the paging DCI sent by the base station to the user equipment can be added with a specific information element, and the value of the specific information element can represent whether the variable carrier members in the fixed carrier set corresponding to each coverage level have changed.

[0100] For example, when the coverage level is 3, 3 bits of the specific information element can be added in the paging DCI, where the first bit is used to indicate whether the variable carrier members in the fixed carrier set corresponding to the coverage level 1 have changed, the second bit is used to indicate whether the variable carrier members in the fixed carrier set corresponding to the coverage level 2 have changed, and the third bit is used to indicate whether the variable carrier members in the fixed carrier set corresponding to the coverage level 3 have changed.

[0101] In a specific implementation, the system message issued by the base station can be an SIB 22-NB message.

[0102] In a specific implementation, when the user equipment detects that the corresponding coverage level thereof changes, it needs to report a coverage level change message of the changed coverage level to the base station. After receiving the coverage level change message sent by the user equipment, the base station sends carrier update information corresponding to the changed coverage level to the user equipment.

[0103] For example, the corresponding coverage level of the user equipment changes from coverage level 2 to coverage level 1. The user equipment sends a coverage level change message to the base station. After receiving the coverage level change message, the base station sends carrier update information corresponding to coverage level 1 to the user equipment.

[0104] Referring to Figure 3 A base station 30 in an embodiment of the present application is provided, which comprises a carrier configuration information issuing unit 301, an updating unit 302, and a carrier update information sending unit 303, wherein:

[0105] The carrier configuration information issuing unit 301 is configured to issue carrier configuration information to user equipment, wherein the carrier configuration information comprises a fixed carrier set corresponding to each coverage level and a variable carrier set.

[0106] The updating unit 302 is configured to update the variable carrier members in the fixed carrier set when a preset condition is met.

[0107] The carrier update information sending unit 303 is configured to send carrier update information to the user equipment to inform the user equipment that the variable carrier members in the fixed carrier set are updated.

[0108] In a specific implementation, the specific execution process of the carrier configuration information issuing unit 301, the updating unit 302, and the carrier update information sending unit 303 described above can refer to steps S101-S102 described above, and the embodiment of the present application will not be described herein.

[0109] The embodiment of the present application further provides a user equipment 40, which comprises a carrier configuration information receiving unit 401, a carrier update information receiving unit 402, and an obtaining unit 403, wherein:

[0110] The carrier configuration information receiving unit 401 is configured to receive carrier configuration information issued by a base station, wherein the carrier configuration information comprises a fixed carrier set corresponding to each coverage level and a variable carrier set.

[0111] The carrier update information receiving unit 402 is configured to receive carrier update information issued by the base station, wherein the carrier update information is generated by the base station after updating the variable carrier members in the fixed carrier set when a preset condition is met.

[0112] The acquisition unit 403 is configured to acquire a variable carrier member in the updated fixed carrier set according to the carrier update information.

[0113] In a specific implementation, the specific execution procedures of the carrier configuration information receiving unit 401, the carrier update information receiving unit 402, and the acquisition unit 403 can refer to the steps S201-S203, and details are not described herein.

[0114] The embodiment of the present application further provides a computer readable storage medium, which is a nonvolatile storage medium or a non-transitory storage medium, and has a computer program stored thereon. The computer program is run on a processor to execute the steps of the carrier allocation method provided in the corresponding embodiment of the steps S101-S102.

[0115] The embodiment of the present application further provides a computer readable storage medium, which is a nonvolatile storage medium or a non-transitory storage medium, and has a computer program stored thereon. The computer program is run on a processor to execute the steps of the carrier allocation method provided in the corresponding embodiment of the steps S201-S203.

[0116] The embodiment of the present application further provides another base station, which includes a memory and a processor. The memory has a computer program stored thereon, and the computer program is run on the processor. The processor executes the steps of the carrier allocation method provided in the corresponding embodiment of the steps S101-S102.

[0117] The embodiment of the present application further provides another user equipment, which includes a memory and a processor. The memory has a computer program stored thereon, and the computer program is run on the processor. The processor executes the steps of the carrier allocation method provided in the corresponding embodiment of the steps S201-S203.

[0118] Those skilled in the art can understand that all or part of the steps in the above-mentioned embodiments can be completed by a program instructing related hardware, and the program can be stored in a computer readable storage medium, which can include ROM, RAM, magnetic disk or optical disk, etc.

[0119] Although the present application is disclosed as above, the present application is not limited to this. Any person skilled in the art can make various modifications and variations without departing from the spirit and scope of the present application, and the protection scope of the present application should be subject to the scope defined by the claims.

Claims

1. A carrier allocation method, characterized in that, include: The system receives carrier configuration information from the base station. The carrier configuration information includes: a set of fixed carriers corresponding to each coverage level, and a common set of variable carriers. The common set of variable carriers is a set of carriers other than the set of fixed carriers for each coverage level. The system receives carrier update information sent by the base station. The carrier update information is generated by the base station after adding a variable carrier member to the fixed carrier set when it detects that a preset condition is met. The variable carrier member is selected from the common variable carrier set. Based on the carrier update information, obtain the variable carrier members in the updated fixed carrier set.

2. The carrier allocation method as described in claim 1, characterized in that, The receiving of carrier configuration information sent by the base station includes: Receive the carrier configuration information sent by the base station through a system broadcast message.

3. The carrier allocation method as described in claim 1, characterized in that, The receiving of carrier update information sent by the base station includes: The system receives paging downlink control information sent by the base station. The paging downlink control information contains N bits, where N is the number of carrier members in the variable carrier set. The values ​​of the N bits are used to indicate whether the carrier members in the variable carrier set are in the fixed carrier set corresponding to the target coverage level under the target coverage level of the carrier carrying the paging downlink control information.

4. The carrier allocation method as described in claim 1, characterized in that, Receiving the carrier update information includes: Receive the paging message sent by the base station, and obtain carrier update indication information from the paging message; Receive system messages sent by the base station and obtain the carrier update information from the system messages.

5. The carrier allocation method as described in claim 4, characterized in that, The paging message includes a specific information element, which is used to indicate whether the variable carrier members in the fixed carrier set corresponding to each coverage level have changed.

6. The carrier allocation method as described in claim 1, characterized in that, Receiving the carrier update information includes: Receive paging downlink control information sent by the base station, and obtain carrier update indication information from the paging downlink control information; Receive system messages sent by the base station and obtain the carrier update information from the system messages.

7. The carrier allocation method as described in claim 6, characterized in that, The paging downlink control information includes specific information elements, which are used to indicate whether the variable carrier members in the fixed carrier set corresponding to each coverage level have changed.

8. The carrier allocation method as described in claim 1, characterized in that, Receiving the carrier update information includes: Send a coverage level change message to the base station; Receive the carrier update information sent by the base station that corresponds to the changed coverage level.

9. A carrier allocation method, characterized in that, include: Carrier configuration information is sent to user equipment, the carrier configuration information including: a fixed carrier set corresponding to each coverage level, and a common variable carrier set; the common variable carrier set is a carrier set other than the fixed carrier set for each coverage level. When a preset condition is detected, the variable carrier members allocated in the fixed carrier set are updated, and carrier update information is sent to the user equipment to inform the user equipment that the variable carrier members in the fixed carrier set have been updated; the variable carrier members are selected from the common variable carrier set; updating the variable carrier members allocated in the fixed carrier set includes: adding the variable carrier members to the fixed carrier set.

10. The carrier allocation method as described in claim 9, characterized in that, The step of sending carrier configuration information to the user equipment includes: The carrier configuration information is sent to the user equipment via a system broadcast message.

11. The carrier allocation method as described in claim 9, characterized in that, Sending carrier update information to the user equipment includes: The paging downlink control information is sent to the user equipment. The paging downlink control information contains N bits, where N is the number of carrier members in the variable carrier set. The value of the N bits is used to indicate whether the carrier members in the variable carrier set are in the fixed carrier set corresponding to the target coverage level under the target coverage level of the carrier carrying the paging downlink control information.

12. The carrier allocation method as described in claim 9, characterized in that, Sending carrier update information to the user equipment includes: Send a paging message to the user equipment, the paging message including carrier update indication information; A system message is sent to the user equipment, the system message including the carrier update information.

13. The carrier allocation method as described in claim 12, characterized in that, A specific information element is added to the paging message. This specific information element is used to indicate whether the variable carrier members in the fixed carrier set corresponding to each coverage level have changed.

14. The carrier allocation method as described in claim 9, characterized in that, Sending carrier update information to the user equipment includes: Send paging downlink control information to the user equipment, the paging downlink control information including carrier update indication information; A system message is sent to the user equipment, the system message including the carrier update information.

15. The carrier allocation method as described in claim 14, characterized in that, A specific information element is added to the paging downlink control information. This specific information element is used to indicate whether the variable carrier members in the fixed carrier set corresponding to each coverage level have changed.

16. The carrier allocation method as described in claim 9, characterized in that, Sending carrier update information to the user equipment includes: Upon receiving a coverage level change message from the user equipment, the carrier update information corresponding to the changed coverage level is sent to the user equipment.

17. A user equipment, characterized in that, include: The carrier configuration information receiving unit is used to receive carrier configuration information sent by the base station. The carrier configuration information includes: a fixed carrier set corresponding to each coverage level, and a common variable carrier set; the common variable carrier set is a carrier set other than the fixed carrier set for each coverage level. A carrier update information receiving unit is used to receive carrier update information sent by the base station; the carrier update information is generated by the base station after adding a variable carrier member to the fixed carrier set when it detects that a preset condition is met; the variable carrier member is selected from the common variable carrier set; The acquisition unit is used to acquire the variable carrier members in the updated fixed carrier set based on the carrier update information.

18. A base station, characterized in that, include: The carrier configuration information distribution unit is used to distribute carrier configuration information to user equipment. The carrier configuration information includes: a fixed carrier set corresponding to each coverage level, and a common variable carrier set; the common variable carrier set is a carrier set other than the fixed carrier set for each coverage level. An update unit is configured to update the variable carrier members allocated in the fixed carrier set when a preset condition is detected; the variable carrier members are selected from the common variable carrier set; updating the variable carrier members allocated in the fixed carrier set includes: adding the variable carrier members to the fixed carrier set; The carrier update information sending unit is used to send carrier update information to the user equipment to inform the user equipment that the variable carrier members in the fixed carrier set have been updated.

19. A computer-readable storage medium, said computer-readable storage medium being a non-volatile storage medium or a non-transient storage medium, having stored thereon a computer program, characterized in that, When the computer program is run by the processor, it performs the steps of the carrier allocation method according to any one of claims 1 to 8 or 9 to 16.

20. A user equipment comprising a memory and a processor, wherein the memory stores a computer program executable on the processor, characterized in that, When the processor runs the computer program, it performs the steps of the carrier allocation method according to any one of claims 1 to 8.

21. A base station, comprising a memory and a processor, wherein the memory stores a computer program executable on the processor, characterized in that, When the processor runs the computer program, it performs the steps of the carrier allocation method according to any one of claims 9 to 16.

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