A frequency point concession method, device and equipment based on the NR system
By using the BWP switching mechanism in the NR system, the service interruption problem caused by the intermediate frequency point backward in the prior art is solved for unauthorized users, and the effect of reducing the delay in frequency point backward and ensuring continuous communication of users is achieved.
Patent Information
- Application Number
- CN202110087930.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-01-22
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2041-01-22
AI Technical Summary
The existing frequency point concession method will cause service interruption to connected state unauthorized users during the frequency point concession process, and the delay is large, affecting the user experience.
By using the BWP switching mechanism in the NR system, after the network side device detects a spectrum resource conflict, it sends a BWP switching instruction carrying the target BWP to the unauthorized user, so that the unauthorized user can perform BWP switching, avoiding service interruption during frequency point concessions.
The base station side does not need to make frequency point concessions, reduces the complexity and delay of frequency point concessions, only affects some connected users, and ensures that the continuous communication of users does not require service interruptions.
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Figure CN114786187B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of wireless communication technologies, and particularly to a frequency point concession method, apparatus and device based on an NR system. Background Art
[0002] In a hybrid networking scenario, such as a hybrid network of NR (New Radio) and LTE (Long Term Evolution), or a hybrid network of NR and a dedicated system, dynamic spectrum sharing or spectrum sensing technologies are usually required.
[0003] The goal of dynamic spectrum sharing or spectrum sensing is to detect spectrum opportunities and the spectrum usage of the network. The network needs to ensure that users with higher priorities are served first, and at the same time, it also needs to ensure that spectrum resources are not monopolized by certain users, that is, the network needs to manage idle spectrum resources fairly and effectively. When the network senses that a certain spectrum resource is not occupied by high-priority system users, this spectrum resource can be used; when the network senses that a certain spectrum resource is occupied by other high-priority system users, the lower-priority system side needs to perform frequency point concession.
[0004] The frequency point concession technology was initially proposed in a CR system (Cognitive Radio). After the spectrum sensing process is completed, the base station and / or the user perform frequency point concession according to the judgment result. Currently, after the base station detects the reappearance of an authorized user at the current operating frequency point, it stops the transceiver of other users' data at the current operating frequency point, and selects the standby frequency point with the highest priority for other users to restore the cell, and transfers the entire cell of other users to the new frequency point.
[0005] In the existing frequency point concession method, the users who perform frequency point concession need to disconnect from the original base station and reconnect to the new base station. Therefore, frequency point concession needs to be performed on both the base station side and the user side. Although this method can ensure that newly connected users and connected users can completely avoid affecting the performance of authorized users, in the existing technology during the frequency point concession process, it will cause service interruption to connected non-authorized users. Even if the service interruption time is limited, it will still have a negative impact on the user experience, which is unacceptable for some systems (such as dedicated systems). Summary of the Invention
[0006] The present invention provides a frequency point concession method, apparatus and device based on an NR system to solve the problems of service interruption to connected non-authorized users and large frequency point concession delay caused by the existing frequency point concession method.
[0007] According to the first aspect of the embodiments of the present invention, a frequency point concession method based on an NR system is provided, which is applied to a network-side device and includes:
[0008] Determine the target BWP;
[0009] Send a BWP switching indication carrying the target BWP to an unauthorized user to instruct the unauthorized user to perform BWP switching based on the target BWP.
[0010] As an optional implementation manner, determining the target BWP includes:
[0011] Detect a spectrum resource conflict between an unauthorized user and an authorized user;
[0012] Determine an available target BWP from the set of available partial bandwidth BWPs where no spectrum resource conflict has been detected.
[0013] As an optional implementation manner, when the set of available BWPs is empty, it further includes:
[0014] Notify the unauthorized user that the set of available BWPs is empty to instruct the unauthorized user to select to negotiate with the serving base station or other service devices for interference avoidance.
[0015] As an optional implementation manner, sending a BWP switching indication carrying the target BWP to an unauthorized user includes:
[0016] Send a BWP switching indication to the unauthorized user through an RRC reconfiguration message carrying the target BWP; or
[0017] Send a BWP switching indication to the unauthorized user through a downlink control information DCI format carrying the target BWP.
[0018] As an optional implementation manner, sending a BWP switching indication to the unauthorized user through an RRC reconfiguration message carrying the target BWP includes:
[0019] Indicate the target downlink BWP for BWP switching through the first active downlink BWP identifier firstActiveDownlinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message;
[0020] Indicate the target uplink BWP for BWP switching through the first active uplink BWP identifier firstActiveUplinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message.
[0021] As an alternative implementation, when the existence condition CondSyncAndCellAddAndFreqCollision indicating the target BWP domain is satisfied, the target downlink BWP for BWP switching is indicated by the firstActiveDownlinkBWP-Id in the ServingCellConfig of the RRC reconfiguration message;
[0022] When the existence condition Cond SyncAndCellAddAndFreqCollision indicating the target BWP domain is satisfied, the target uplink BWP for BWP switching is indicated by the firstActiveUplinkBWP-Id in the ServingCellConfig of the RRC reconfiguration message;
[0023] The existence condition Cond SyncAndCellAddAndFreqCollision indicating the target BWP domain includes detecting a spectrum resource conflict with an authorized user.
[0024] As an alternative implementation, the method of sending a BWP switching indication to an unauthorized user by carrying the DCI format of the target BWP includes:
[0025] The target downlink BWP for BWP switching is indicated by the Bandwidthpart indicator in the DCI 1-1 format sent via the physical downlink control channel PDCCH;
[0026] The target uplink BWP for BWP switching is indicated by the Bandwidth part indicator in the DCI 0-1 format sent via the PDCCH.
[0027] As an alternative implementation, the method further includes:
[0028] Notifying the unauthorized user of the available BWP set via a downlink media access control resource element MAC CE.
[0029] As an alternative implementation, when the available BWP set is empty, notifying the unauthorized user that the available BWP set is empty includes:
[0030] Notifying the unauthorized user that the available BWP set is empty via a downlink MAC CE.
[0031] As an alternative implementation, the MAC CE includes:
[0032] The serving cell identifier ID to which the MAC CE applies;
[0033] The identifier of the uplink BWP in the available BWP set;
[0034] The identifier of the downlink BWP in the available BWP set.
[0035] According to the second aspect of the embodiments of the present invention, a frequency point concession method based on the NR system is provided, which is applied to a user terminal UE and includes:
[0036] Receiving a BWP switching indication sent by the network side;
[0037] Determining the target BWP for switching according to the BWP switching indication;
[0038] Performing BWP switching based on the target BWP.
[0039] As an optional implementation manner, the method further includes:
[0040] When it is determined according to the notification from the network side that the available BWP set is empty, select to negotiate with the serving base station or other serving devices for interference avoidance.
[0041] As an optional implementation manner, receiving a BWP switching indication sent by the network side, and determining the target BWP for switching according to the BWP switching indication includes:
[0042] Receiving an RRC reconfiguration message sent by the network side, and determining the target BWP for switching according to the RRC reconfiguration message; or
[0043] Receiving a downlink control information DCI format indication sent by the network side, and determining the target BWP for switching according to the DCI format indication.
[0044] As an optional implementation manner, determining the target BWP for switching according to the RRC reconfiguration message includes:
[0045] Obtaining the target downlink BWP for switching from the first active downlink BWP identifier firstActiveDownlinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message;
[0046] Obtaining the target uplink BWP for switching from the first active uplink BWP identifier firstActiveUplinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message.
[0047] As an optional implementation manner, receiving a DCI format indication sent by the network side, and determining the target BWP for switching according to the DCI format indication includes:
[0048] Receive the DCI 1-1 format indication sent by the network side using PDCCH, and obtain the target downlink BWP for handover from the partial bandwidth indication Bandwidth part indicator in the DCI 1-1 format;
[0049] Receive the DCI 0-1 format indication sent by the network side using PDCCH, and obtain the target uplink BWP for handover from the partial bandwidth indication Bandwidth part indicator in the DCI 0-1 format indication.
[0050] As an optional implementation manner, the method further includes:
[0051] Receive the downlink media access control resource unit MAC CE sent by the network side, and determine the set of available BWPs notified by the network side according to the MAC CE;
[0052] When performing BWP handover based on the target BWP, use the set of available BWPs to assist in BWP handover.
[0053] As an optional implementation manner, when determining that the set of available BWPs is empty according to the notification of the network side, negotiate with the base station or OMC for interference avoidance, including:
[0054] When determining that the set of available BWPs notified by the MAC CE is empty, select to negotiate with the serving base station or other service devices for interference avoidance.
[0055] As an optional implementation manner, the MAC CE includes:
[0056] The service cell identifier ID applied by the MAC CE;
[0057] The uplink BWP identifier in the set of available BWPs;
[0058] The downlink BWP identifier in the set of available BWPs.
[0059] According to the third aspect of the embodiments of the present invention, there is provided a network side device, including: a memory and a processor;
[0060] Wherein, the memory is used to store a computer program;
[0061] The processor is used to read the program in the memory and execute:
[0062] Determine the target BWP;
[0063] Send a BWP handover indication carrying the target BWP to an unauthorized user to instruct the unauthorized user to perform BWP handover based on the target BWP.
[0064] As an alternative implementation, the processor determines the target BWP, including:
[0065] Detecting a spectrum resource conflict between an unauthorized user and an authorized user;
[0066] Determining an available target BWP from the set of available partial bandwidth BWPs where no spectrum resource conflict has been detected.
[0067] As an alternative implementation, when the set of available BWPs is empty, the processor is further configured to:
[0068] Notify the unauthorized user that the set of available BWPs is empty to indicate that the unauthorized user selects to negotiate with the serving base station or other service devices for interference avoidance.
[0069] As an alternative implementation, the processor sends an indication carrying the target BWP to the unauthorized user, including:
[0070] Sending a BWP switching indication to the unauthorized user through an RRC reconfiguration message carrying the target BWP; or
[0071] Sending a BWP switching indication to the unauthorized user through a downlink control information DCI format carrying the target BWP.
[0072] As an alternative implementation, when the processor sends a BWP switching indication to the unauthorized user through an RRC reconfiguration message carrying the target BWP, it includes:
[0073] Indicating the target downlink BWP for BWP switching through the first active downlink BWP identifier firstActiveDownlinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message;
[0074] Indicating the target uplink BWP for BWP switching through the first active uplink BWP identifier firstActiveUplinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message.
[0075] As an alternative implementation, when the condition CondSyncAndCellAddAndFreqCollision indicating the existence of the target BWP domain is met, the target downlink BWP for BWP switching is indicated through the firstActiveDownlinkBWP-Id in the ServingCellConfig of the RRC reconfiguration message;
[0076] When the existence condition Cond SyncAndCellAddAndFreqCollision indicating the target BWP domain is satisfied, the target uplink BWP for BWP switching is indicated by the firstActiveUplinkBWP-Id in the ServingCellConfig of the RRC reconfiguration message;
[0077] The existence condition Cond SyncAndCellAddAndFreqCollision indicating the target BWP domain includes detecting a spectrum resource conflict with an authorized user.
[0078] As an alternative implementation, the processor sends a BWP switching indication to the unauthorized user by means of a DCI format carrying the target BWP, including:
[0079] The target downlink BWP for BWP switching is indicated by the Bandwidthpart indicator in the DCI 1-1 format sent through the physical downlink control channel PDCCH;
[0080] The target uplink BWP for BWP switching is indicated by the Bandwidth part indicator in the DCI 0-1 format sent through the PDCCH.
[0081] As an alternative implementation, the processor is further configured to:
[0082] Notify the unauthorized user of the available BWP set through a downlink media access control resource unit MAC CE.
[0083] As an alternative implementation, when the available BWP set is empty, the processor notifies the unauthorized user that the available BWP set is empty, including:
[0084] Notifying the unauthorized user that the available BWP set is empty through a downlink MAC CE.
[0085] As an alternative implementation, the MAC CE includes:
[0086] The serving cell identifier ID applied by the MAC CE;
[0087] The uplink BWP identifier in the available BWP set;
[0088] The downlink BWP identifier in the available BWP set.
[0089] According to a fourth aspect of the embodiments of the present invention, a user equipment UE is provided, including: a memory and a processor;
[0090] Wherein, the memory is used to store computer programs;
[0091] The processor is used to read the program in the memory and execute:
[0092] Receive the BWP switching indication sent by the network side;
[0093] Determine the target BWP for switching according to the BWP switching indication;
[0094] Perform BWP switching based on the target BWP.
[0095] As an optional implementation manner, the processor is further used to:
[0096] When it is determined according to the notification from the network side that the set of available BWPs is empty, select to negotiate with the serving base station or other serving devices for interference avoidance.
[0097] As an optional implementation manner, when the processor receives the BWP switching indication sent by the network side and determines the target BWP for switching according to the BWP switching indication, it includes:
[0098] Receive the RRC reconfiguration message sent by the network side and determine the target BWP for switching according to the RRC reconfiguration message; or
[0099] Receive the downlink control information DCI format indication sent by the network side and determine the target BWP for switching according to the DCI format indication.
[0100] As an optional implementation manner, when the processor determines the target BWP for switching according to the RRC reconfiguration message, it includes:
[0101] Obtain the target downlink BWP for switching from the first active downlink BWP identifier firstActiveDownlinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message;
[0102] Obtain the target uplink BWP for switching from the first active uplink BWP identifier firstActiveUplinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message.
[0103] As an optional implementation manner, when the processor receives the DCI format indication sent by the network side and determines the target BWP for switching according to the DCI format indication, it includes:
[0104] Receive the DCI 1-1 format indication sent by the network side using PDCCH, and obtain the target downlink BWP for handover from the partial bandwidth indication, i.e., Bandwidth part indicator, in the DCI 1-1 format;
[0105] Receive the DCI 0-1 format indication sent by the network side using PDCCH, and obtain the target uplink BWP for handover from the partial bandwidth indication, i.e., Bandwidth part indicator, in the DCI 0-1 format indication.
[0106] As an alternative implementation, the processor is further configured to:
[0107] Receive the downlink media access control control element, i.e., MAC CE, sent by the network side, and determine the set of available BWPs notified by the network side according to the MAC CE;
[0108] When performing BWP handover based on the target BWP, use the set of available BWPs to assist in BWP handover.
[0109] As an alternative implementation, when the processor determines that the set of available BWPs is empty according to the notification from the network side, it negotiates with the base station or OMC for interference avoidance, including:
[0110] When it is determined that the set of available BWPs notified by the MAC CE is empty, select to negotiate with the serving base station or other serving devices for interference avoidance.
[0111] As an alternative implementation, the MAC CE includes:
[0112] The service cell identifier, i.e., ID, applied by the MAC CE;
[0113] The uplink BWP identifier in the set of available BWPs;
[0114] The downlink BWP identifier in the set of available BWPs.
[0115] According to the fifth aspect of the embodiments of the present invention, there is provided a frequency point concession device based on an NR system, including:
[0116] A target BWP handover module, configured to determine a target BWP;
[0117] A BWP handover indication module, configured to send a BWP handover indication carrying the target BWP to an unauthorized user to instruct the unauthorized user to perform BWP handover based on the target BWP.
[0118] According to the sixth aspect of the embodiments of the present invention, there is provided a frequency point concession device based on an NR system, including:
[0119] A BWP switching indication receiving module, configured to receive a BWP switching indication sent by a network side;
[0120] A target BWP determining module, configured to determine a target BWP for switching according to the BWP switching indication;
[0121] A BWP switching module, configured to perform BWP switching based on the target BWP.
[0122] According to a seventh aspect of an embodiment of the present invention, there is provided a chip, which is coupled to a memory in a device, so that when the chip runs, it calls program instructions stored in the memory to implement the above-mentioned various aspects of the embodiments of the present application and any possible methods involved in each aspect.
[0123] According to an eighth aspect of an embodiment of the present invention, there is provided a computer-readable storage medium, which stores program instructions, and when the program instructions run on a computer, the computer is caused to execute the above-mentioned various aspects of the embodiments of the present invention and any possible methods involved in each aspect.
[0124] According to a ninth aspect of an embodiment of the present invention, there is provided a computer program product, which when running on an electronic device, causes the electronic device to execute the above-mentioned various aspects of the embodiments of the present application and any possible methods involved in each aspect.
[0125] Utilizing the frequency point concession method, device and equipment based on the NR system provided by the present invention has the following beneficial effects:
[0126] The base station side does not need to perform frequency point concession, and thus does not need to modify key parameters such as the cell center frequency point and cell bandwidth, reducing the complexity of implementing frequency point concession and reducing the delay;
[0127] Compared with the prior art, only some connected users are affected, and for the affected users, continuous communication of the users can still be guaranteed without service interruption. Description of the Drawings
[0128] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0129] Figure 1 It is a schematic diagram of frequency point concession in related technologies;
[0130] Figure 2Schematic diagram of the frequency point concession system architecture based on the NR system provided in the embodiments of the present invention;
[0131] Figure 3 Schematic diagram of a frequency point concession method based on the NR system provided in the embodiments of the present invention;
[0132] Figure 4 Schematic diagram of the MAC CE structure for notifying the available BWP set provided in the embodiments of the present invention;
[0133] Figure 5 Schematic diagram of the multi-BWP configuration exemplified in the embodiments of the present invention;
[0134] Figure 6 Detailed flowchart of the frequency point concession method based on the NR system provided in the embodiments of the present invention;
[0135] Figure 7 Detailed flowchart of the frequency point concession method based on the NR system applied to the UE provided in the embodiments of the present invention;
[0136] Figure 8 Schematic diagram of the structure of a frequency point concession device based on the NR system provided in the embodiments of the present invention;
[0137] Figure 9 Schematic diagram of the structure of another frequency point concession device based on the NR system provided in the embodiments of the present invention;
[0138] Figure 10 Schematic diagram of the structure of a network side device provided in the embodiments of the present invention;
[0139] Figure 11 Schematic diagram of the structure of a UE provided in the embodiments of the present invention. Detailed implementation manners
[0140] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0141] In the embodiments of the present application, "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the front and rear associated objects.
[0142] The current mainstream frequency point concession process is as Figure 1As shown in the figure, the base station performs frequency point conflict detection during the sensing period. When it detects that an authorized user appears on the operating frequency point within the sensing period, it determines that a frequency point conflict is detected. The unauthorized user occupying the operating frequency point needs to perform frequency point concession, that is, stop the data transmission and reception of the unauthorized user on the operating frequency point. The unauthorized user exits the occupied operating frequency point within the spectrum release time and selects the standby frequency point with the highest priority to restore the cell, and transfers the entire cell to the new frequency point and resumes services on the new frequency point. The time for exiting the operating frequency point and switching to the new frequency point occupancy is the cell transfer time.
[0143] In order to ensure that the performance of authorized users is not adversely affected by another system, it is necessary to define the frequency point release time of the sensing system and its value. In order to ensure a better user experience, it is necessary to further stipulate the index of the user service interruption time during frequency point concession.
[0144] Although this method can ensure that newly connected users and connected users can completely avoid affecting the performance of authorized users, in the prior art, during the frequency point concession process, it will cause service interruption to connected unauthorized users. Even if the service interruption time is limited, it will still have a negative impact on the user experience, which is unacceptable for some systems (such as dedicated systems).
[0145] As Figure 2 As shown in the figure is the schematic architecture diagram of the frequency point concession system based on the NR system provided by the embodiment of the present invention. The system includes a network-side device 201 and a user terminal 202.
[0146] The network-side device 201 is used to determine the target BWP; send a BWP switching instruction carrying the target BWP to the unauthorized user to instruct the unauthorized user to perform BWP switching based on the target BWP.
[0147] The user terminal 202 is used to receive the BWP switching instruction sent by the network side; determine the target BWP for switching according to the BWP switching instruction; perform BWP switching based on the target BWP.
[0148] In the embodiments of the present invention, the user equipment UE may specifically refer to an access terminal, a subscriber unit, a user station, a mobile station, a mobile device, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device, or other processing devices connected to a wireless modem, a vehicle-mounted device, a wearable device, a mobile station in a 5G network, or a subscription device in a future evolved Public Land Mobile Network (PLMN) network, etc.
[0149] The network-side device may be a next-generation base station (gNB) in a 5G system, and may be a base transceiver station (BTS) in a Global System of Mobile communication (GSM) system or a Code Division Multiple Access (CDMA) system, or a Node B (NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station (eNodeB) in a Long Term Evolution (LTE) system, etc.
[0150] Figure 1 For the sake of convenience in description, only one user terminal and one network-side device are exemplified. In an actual system, there may be multiple terminals and network-side devices coexisting, which will not be elaborated here.
[0151] It should be noted that the above system architecture is only an example of the applicable system architecture of the embodiments of the present invention. The applicable system architecture of the embodiments of the present invention may Figure 1 add other entities or reduce some entities compared with the
[0152] The system architecture and business scenarios described in the embodiments of the present invention are used to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute a limitation on the technical solutions provided by the embodiments of the present invention. Those skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems.
[0153] Embodiment 1
[0154] The embodiments of the present invention provide a frequency point concession method based on the NR system, which is applied to network-side devices. As Figure 3 shown, the method includes:
[0155] Step 301, determine the target BWP;
[0156] During the sensing period, the network-side device performs spectrum sensing. When it detects that the spectrum resources occupied by unauthorized users are applied for by authorized users, it determines that there is a conflict between the spectrum resources of unauthorized users and authorized users, and determines the available target BWP from the set of available BWPs where no spectrum resource conflict has been detected.
[0157] Step 302, send a BWP switching indication carrying the target BWP to the unauthorized user to instruct the unauthorized user to perform BWP switching based on the target BWP.
[0158] In the NR system, in order to quickly and dynamically adjust the network configuration according to service changes to adapt to service changes, or in order to save energy consumption, the BWP (Bandwidth Part, partial bandwidth) mechanism is introduced, that is, the base station configures multiple BWPs for users to use, and users can switch between multiple BWPs when necessary. The frequency point concession method of the present invention utilizes the BWP switching mechanism to achieve frequency point concession when detecting spectrum resource conflicts. When detecting spectrum resource conflicts, it determines the set of available BWPs where no spectrum resource conflict has been detected. If there is an available BWP in the set of available BWPs, it selects a BWP from the set of available BWPs as the available target BWP.
[0159] After determining the target BWP in the embodiments of the present invention, by sending a BWP switching indication carrying the target BWP to the unauthorized user, the unauthorized user performs BWP switching based on the target BWP. The base station side does not need to perform frequency point concession, and thus does not need to modify key parameters such as the cell center frequency point and cell bandwidth, reducing the complexity of implementing frequency point concession and reducing the delay; compared with the prior art, the present invention only affects some connected users; for the affected users, the present invention can still ensure the continuous communication of users without service interruption.
[0160] The present invention provides a method for frequency point concession based on the NR system, which can be widely used for spectrum sharing between different systems in a hybrid networking scenario.
[0161] As an alternative implementation manner, when the set of available BWPs is empty, the method further includes:
[0162] Notifying the unauthorized user that the set of available BWPs is empty, so as to instruct the unauthorized user to select to negotiate with the serving base station or other service devices for interference avoidance.
[0163] When the network side device determines that there are spectrum resource conflicts in all BWPs, on the one hand, the network side device cannot specify an available target BWP for the unauthorized user to switch to, and on the other hand, the authorized user suffers interference from another system in the current BWP. In this case, the network side needs to notify the unauthorized user that there are frequency point conflicts between all current BWPs and another system. The unauthorized user can, according to this notification, select to negotiate with the serving base station or other service devices for interference avoidance. After specific negotiation, the existing method can be adopted, which will not be elaborated here.
[0164] Currently, there are three mechanisms for BWP switching in the NR system, which can be BWP switching based on RRC signaling, or based on a timer, or based on DCI indication.
[0165] As an alternative implementation manner, the network side device in the embodiment of the present invention may send an indication carrying the target BWP to the unauthorized user in any of the following ways:
[0166] 1) Sending a BWP switching indication to the unauthorized user through an RRC reconfiguration message carrying the target BWP;
[0167] In the embodiment of the present invention, when detecting a spectrum resource conflict with an authorized user, the target BWP is carried in the RRC reconfiguration message, and a BWP switching indication is sent to the unauthorized user through the RRC reconfiguration message. Specifically, the target downlink BWP for BWP switching can be indicated by the first active downlink BWP identifier firstActiveDownlinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message; the target uplink BWP for BWP switching can be indicated by the first active uplink BWP identifier firstActiveUplinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message.
[0168] According to the existing protocol, the existence condition Cond SyncAndCellAdd indicating the target BWP domain is defined. When the conditions defined in Cond SyncAndCellAdd are met, the user is instructed to perform a frequency point switch through an RRC reconfiguration message carrying the target BWP.
[0169] In the embodiment of the present invention, Cond SyncAndCellAdd is modified, and detecting a spectrum resource conflict with an authorized user is added to the existence condition indicating the target BWP domain, that is, the existence condition Cond SyncAndCellAddAndFreqCollision indicating the target BWP domain in the embodiment of the present invention includes detecting a spectrum resource conflict with an authorized user.
[0170] When a spectrum resource conflict with an authorized user is detected, it is necessary for all cells in the gNB to use this field, that is, there is a target BWP domain in the RRC reconfiguration message, and the above target BWP domain is firstActiveDownlinkBWP-Id or irstActiveUplinkBWP-Id.
[0171] Specifically, when the network side device determines that the existence condition CondSyncAndCellAddAndFreqCollision indicating the target BWP domain is met, the target downlink BWP for BWP switching is indicated through firstActiveDownlinkBWP-Id in ServingCellConfig of the RRC reconfiguration message.
[0172] When the network side device determines that the existence condition CondSyncAndCellAddAndFreqCollision indicating the target BWP domain is met, the target uplink BWP for BWP switching is indicated through firstActiveUplinkBWP-Id in ServingCellConfig of the RRC reconfiguration message.
[0173] 2) Send a BWP switching indication to the unauthorized user through the downlink control information DCI format carrying the target BWP.
[0174] The downlink control information in DCI format can indicate BWP switching while scheduling data, or it can also indicate BWP switching without scheduling data. DCI based BWP switching is the most flexible BWP switching method, and as long as there is a scheduling DCI, BWP switching can be initiated.
[0175] As an alternative implementation, for DCI-based BWP switching, the target downlink BWP for BWP switching is dynamically indicated by the Bandwidth part indicator in DCI format 1-1 sent through the physical downlink control channel PDCCH; the target uplink BWP for BWP switching is dynamically indicated by the Bandwidth part indicator in DCI format 0-1 sent through the PDCCH.
[0176] Using timer-based BWP switching will cause the user to switch to the default BWP, i.e., BWP0. For the frequency point concession technology, this may cause the base station to instruct the user to switch to other BWPs again, and the switching process is relatively long. In addition to the above two methods, when the latency requirement is not considered, timer-based BWP switching can also be used, that is, a timer trigger method is adopted to trigger the unauthorized user to switch to the specified BWP0.
[0177] Considering the subsequent protocol evolution, the user side needs to complete more functions, and the user may need to know which BWPs are available. At this time, the base station can also notify the user of the set of available BWPs.
[0178] As an alternative implementation, in the embodiments of the present invention, the set of available BWPs for unauthorized users is notified through the downlink media access control control element (MAC CE).
[0179] When there is at least one available BWP in the set of available BWPs, all available BWPs are carried in the MAC CE and notified to the unauthorized user.
[0180] When there is no available BWP in the set of available BWPs, the embodiments of the present invention notify the unauthorized user that the set of available BWPs is empty, including:
[0181] Notifying the unauthorized user that the set of available BWPs is empty through the downlink MAC CE, that is, the MAC CE carries empty BWP information.
[0182] The method of using the downlink MAC CE to notify the available BWPs can be combined with any of the BWP switching indication methods described above. The MAC CE for notifying the set of available BWPs in the embodiments of the present invention is a newly defined MAC CE. A corresponding field BWP ID is defined in the MAC CE to identify the BWP. For the convenience of subsequent expansion of the number of BWPs, it is defined as 3 bits. Considering the situation of asymmetric uplink and downlink spectra in the FDD mode, it is necessary to separately indicate the sets of available uplink and downlink BWPs. The MAC CE in the embodiments of the present invention specifically includes:
[0183] The service cell identification ID applied by the MAC CE;
[0184] Identified by the uplink BWP in the available BWP set;
[0185] Identified by the downlink BWP in the available BWP set.
[0186] Such as Figure 4 This is the MAC CE format for newly defining the available BWP set notified in the embodiments of the present invention. The MAC CE can, but is not limited to, occupy 8 bytes, specifically including:
[0187] The serving cell identification ID (Serving Cell ID) applied by the MAC CE, indicating the identification of the serving cell to which the MAC CE applies. The length of the field can be, but is not limited to, 5 bits;
[0188] The downlink BWP ID in the available BWP set, indicating the DL BWP available when detecting the spectrum resources of the authorized user;
[0189] The uplink BWP ID in the available BWP set, indicating the UL BWP available when detecting the spectrum resources of the authorized user;
[0190] R, reserved bit.
[0191] The following uses a specific example to illustrate the NR-based frequency point concession method in the embodiments of the present invention. Such as Figure 5 As shown, the base station configures multiple BWPs. Assume that the base station configures 4 BWPs, numbered 0 to 3. The initial BWP0 is configured at the low end of the frequency domain and occupies a 20 MHz bandwidth; the dedicated BWP1 is configured at the low end of the frequency domain and occupies a 60 MHz bandwidth; the dedicated BWP2 is configured at the low end of the frequency domain and occupies an 80 MHz bandwidth; the dedicated BWP3 occupies the entire 100 MHz bandwidth. The spectrum management module detects whether there is a conflict with the spectrum resources of the authorized user and notifies the base station when a conflict is detected. Assume that the sensing bandwidth is 20 MHz, and the spectrum management module senses in the direction from high bandwidth to low bandwidth.
[0192] Such as Figure 6 As shown, the detailed process of the NR-based frequency point concession method in the embodiments of the present invention mainly includes:
[0193] Step 601, the base station pre-configures multiple BWPs;
[0194] Step 602, the base station restricts users to only select the initial BWP0 when initially accessing, otherwise newly accessing users may affect the authorized users;
[0195] Step 603, the base station receives the first frequency point conflict notification sent by the spectrum management module;
[0196] Assume that the perceived bandwidth is 20 MHz, and assume that an authorized user is detected on the 20 MHz bandwidth at the highest end of the frequency domain.
[0197] Step 604, the base station uses the downlink frequency point concession notice in DCI format to instruct the user in conflict with the authorized user to perform BWP switching;
[0198] If a user accesses BWP4, then this user has a frequency point conflict with the authorized user. The base station needs to notify this user to make way. Since the latency of RRC signaling is relatively large, it is recommended that the base station use DCI format to notify the user of the target BWP ID to which it needs to switch. The user performs BWP switching according to the base station's notification.
[0199] Step 605, the base station notifies the user of the available BWP set through MAC CE;
[0200] Assume that an authorized user is detected on the 20 MHz bandwidth at the highest end of the frequency domain. The base station notifies the user of the available BWP set {BWP2, BWP1, BWP0} through downlink MAC CE. After receiving the MAC CE, the user does not need to perform any processing if there is no functional requirement.
[0201] Step 606, the base station receives the second frequency point conflict notice sent by the spectrum management module, and an authorized user is detected on the 60 MHz bandwidth at the high end of the frequency domain. The available BWP set is {BWP0}.
[0202] Step 607, the base station uses the RRC reconfiguration RRCReconfiguration message to notify the user in conflict with the authorized user to perform BWP switching;
[0203] The base station knows that currently only BWP0 has no frequency point conflict. If the spectrum management module predicts that there will be frequency point conflicts for a long time in the future, then the base station can use RRC signaling to reconfigure the user and carry the target BWP ID. The user performs BWP switching according to the base station's notification.
[0204] Step 608, the base station notifies the user through downlink MAC CE that the available BWP set is {BWP0}. After receiving the MAC CE, the user does not need to perform any processing if there is no functional requirement.
[0205] Step 609, the base station receives the third frequency point conflict notice sent by the spectrum management module, and an authorized user is detected on the entire frequency domain bandwidth.
[0206] Step 610, the base station notifies the user through downlink MAC CE that the currently available BWP set is {}.
[0207] When the user receives that the BWP set is an empty set, it means that there are frequency point conflicts in all current BWPs. The user can negotiate with the base station or the OMC to avoid interference.
[0208] An embodiment of the present invention further provides a frequency point concession method based on the NR system, which is applied to a user equipment UE, as Figure 7 shown, including:
[0209] Step 701, receive a BWP handover indication sent by the network side;
[0210] In the embodiment of the present invention, when the BWP is applied to the frequency point handover scenario, specifically, it is to receive the BWP handover indication sent by the network side when it detects a spectrum resource conflict and determines that there is an available target BWP.
[0211] Step 702, determine the target BWP to be handed over according to the BWP handover indication;
[0212] Step 703, perform BWP handover based on the target BWP.
[0213] As an optional implementation manner, the method further includes:
[0214] When it is determined according to the notification from the network side that the available BWP set is empty, select to negotiate with the serving base station or other service devices to avoid interference. The specific negotiation method can adopt the existing method and will not be repeated here.
[0215] As an optional implementation manner, receiving the BWP handover indication sent by the network side and determining the target BWP to be handed over according to the BWP handover indication includes:
[0216] Receive the RRC reconfiguration message sent by the network side and determine the target BWP to be handed over according to the RRC reconfiguration message; or
[0217] Receive the downlink control information DCI format indication sent by the network side and determine the target BWP to be handed over according to the DCI format indication.
[0218] As an optional implementation manner, determining the target BWP to be handed over according to the RRC reconfiguration message includes:
[0219] Obtain the target downlink BWP to be handed over from the first active downlink BWP identifier firstActiveDownlinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message;
[0220] Obtain the target uplink BWP for handover from the first active uplink BWP identifier firstActiveUplinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message.
[0221] As an optional implementation manner, when receiving the RRC reconfiguration message sent by the network side when determining that the condition CondSyncAndCellAddAndFreqCollision indicating the existence of the target BWP domain is satisfied, obtain the target downlink BWP for BWP handover according to the firstActiveDownlinkBWP-Id in the ServingCellConfig of the RRC reconfiguration message;
[0222] When receiving the RRC reconfiguration message sent by the network side when determining that the condition CondSyncAndCellAddAndFreqCollision indicating the existence of the target BWP domain is satisfied, obtain the target uplink BWP for BWP handover through the firstActiveUplinkBWP-Id in the ServingCellConfig of the RRC reconfiguration message;
[0223] The condition Cond SyncAndCellAddAndFreqCollision indicating the existence of the target BWP domain includes detecting a spectrum resource conflict with an authorized user.
[0224] As an optional implementation manner, receiving the DCI format indication sent by the network side, and determining the target BWP for handover according to the DCI format indication includes:
[0225] Receiving the DCI 1-1 format indication sent by the network side using PDCCH, and obtaining the target downlink BWP for handover from the partial bandwidth indication Bandwidth part indicator in the DCI 1-1 format;
[0226] Receiving the DCI 0-1 format indication sent by the network side using PDCCH, and obtaining the target uplink BWP for handover from the partial bandwidth indication Bandwidth part indicator in the DCI 0-1 format indication.
[0227] As an optional implementation manner, the method further includes:
[0228] Receiving the downlink media access control resource unit MAC CE sent by the network side, and determining the set of available BWPs notified by the network side according to the MAC CE;
[0229] When performing BWP switching based on the target BWP, the available BWP set is utilized to assist in BWP switching.
[0230] As an alternative implementation, when it is determined that the available BWP set is empty according to a notification from the network side, interference avoidance is negotiated with the base station or OMC, including:
[0231] When it is determined that the available BWP set notified by the MAC CE is empty, interference avoidance is negotiated by selecting to communicate with the serving base station or other serving devices.
[0232] As an alternative implementation, the MAC CE includes:
[0233] The service cell identification ID applied by the MAC CE;
[0234] The uplink BWP identifier in the available BWP set;
[0235] The downlink BWP identifier in the available BWP set.
[0236] It should be noted that the above method flow is only an example of the applicable method flow of the embodiments of the present invention. The applicable method flow of the embodiments of the present invention may have additional steps or fewer steps compared to Figure 4 the method flow shown.
[0237] The above application provided by the embodiments of the present invention and the method for frequency point concession of a UE based on the NR system belong to the same inventive concept as the method for frequency point concession of a network side device based on the NR system provided in Embodiment 1 above. Various embodiments of the method for frequency point concession of a network side device based on the NR system provided above can be applied to the method for frequency point concession of a UE based on the NR system in this embodiment for implementation, and will not be repeated here.
[0238] Embodiment 3
[0239] The above describes a method for frequency point concession based on the NR system in the present invention. The following describes a device for frequency point concession based on the NR system.
[0240] Figure 8 The following is a schematic structural diagram of a device for frequency point concession based on the NR system provided by the embodiments of the present invention. The device includes:
[0241] A target BWP switching module 801, configured to determine a target BWP;
[0242] A BWP switching indication module 802, configured to send a BWP switching indication carrying the target BWP to an unauthorized user to instruct the unauthorized user to perform BWP switching based on the target BWP.
[0243] As an alternative implementation, the target BWP switching module determines the target BWP, including:
[0244] Detecting a spectrum resource conflict between an unauthorized user and an authorized user;
[0245] Determining an available target BWP from the set of available partial bandwidth BWPs where no spectrum resource conflict has been detected.
[0246] As an alternative implementation, when the set of available BWPs is empty, it further includes:
[0247] An interference avoidance notification module for notifying the unauthorized user that the set of available BWPs is empty to indicate that the unauthorized user selects to negotiate with the serving base station or other service devices for interference avoidance.
[0248] As an alternative implementation, the BWP switching indication module sends an indication carrying the target BWP to the unauthorized user, including:
[0249] Sending a BWP switching indication to the unauthorized user through an RRC reconfiguration message carrying the target BWP; or
[0250] Sending a BWP switching indication to the unauthorized user through a downlink control information DCI format carrying the target BWP.
[0251] As an alternative implementation, the BWP switching indication module sends a BWP switching indication to the unauthorized user through an RRC reconfiguration message carrying the target BWP, including:
[0252] Indicating the target downlink BWP for BWP switching through the first active downlink BWP identifier firstActiveDownlinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message;
[0253] Indicating the target uplink BWP for BWP switching through the first active uplink BWP identifier firstActiveUplinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message.
[0254] As an alternative implementation, when the BWP switching indication module determines that the existence condition Cond SyncAndCellAddAndFreqCollision for indicating the target BWP domain is met, it indicates the target downlink BWP for BWP switching through the firstActiveDownlinkBWP-Id in the ServingCellConfig of the RRC reconfiguration message;
[0255] When the BWP switching indication module determines that the existence condition CondSyncAndCellAddAndFreqCollision for indicating the target BWP domain is satisfied, it indicates the target uplink BWP for BWP switching through the firstActiveUplinkBWP-Id in the ServingCellConfig of the RRC reconfiguration message.
[0256] The existence condition Cond SyncAndCellAddAndFreqCollision for indicating the target BWP domain includes detecting a spectrum resource conflict with an authorized user.
[0257] As an alternative implementation, the BWP switching indication module sends a BWP switching indication to the unauthorized user by carrying the DCI format of the target BWP, including:
[0258] Indicating the target downlink BWP for BWP switching through the Bandwidthpart indicator in the DCI 1-1 format sent through the Physical Downlink Control Channel PDCCH;
[0259] Indicating the target uplink BWP for BWP switching through the Bandwidth part indicator in the DCI 0-1 format sent through the PDCCH.
[0260] As an alternative implementation, it further includes:
[0261] A BWP set notification module for notifying the unauthorized user of the available BWP set through the Downlink Medium Access Control Control Element MAC CE.
[0262] As an alternative implementation, when the available BWP set is empty, the BWP switching indication module notifies the unauthorized user that the available BWP set is empty, including:
[0263] Notifying the unauthorized user that the available BWP set is empty through the downlink MAC CE.
[0264] As an alternative implementation, the MAC CE includes:
[0265] The serving cell identifier ID applied by the MAC CE;
[0266] The uplink BWP identifier in the available BWP set;
[0267] The downlink BWP identifier in the available BWP set.
[0268] The above frequency point concession method based on the NR system provided by the embodiments of the present invention and the frequency point concession method based on the NR system for network-side devices provided in Embodiment 1 of the present invention belong to the same inventive concept. Various embodiments of the frequency point concession method based on the NR system for network-side devices provided in Embodiment 1 can be applied to the frequency point concession device based on the NR system in this embodiment for implementation, and will not be repeated here.
[0269] As Figure 9 FIG. is a schematic structural diagram of a frequency point concession device based on the NR system provided by an embodiment of the present invention. The device includes:
[0270] A BWP switching indication receiving module 901, configured to receive a BWP switching indication sent by the network side;
[0271] A target BWP determining module 902, configured to determine a target BWP for switching according to the BWP switching indication;
[0272] A BWP switching module 903, configured to perform BWP switching based on the target BWP.
[0273] As an optional implementation manner, the device further includes:
[0274] An interference avoidance module, configured to select to negotiate with the serving base station or other serving devices for interference avoidance when it is determined according to the notification from the network side that the set of available BWPs is empty.
[0275] As an optional implementation manner, the BWP switching indication receiving module receives the BWP switching indication sent by the network side, and the target BWP determining module determines the target BWP for switching according to the BWP switching indication, including:
[0276] The BWP switching indication receiving module receives an RRC reconfiguration message sent by the network side, and the target BWP determining module determines the target BWP for switching according to the RRC reconfiguration message; or
[0277] Receive a downlink control information DCI format indication sent by the network side, and determine the target BWP for switching according to the DCI format indication.
[0278] As an optional implementation manner, the target BWP determining module determines the target BWP for switching according to the RRC reconfiguration message, including:
[0279] Obtain the target downlink BWP for switching from the first active downlink BWP identifier firstActiveDownlinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message;
[0280] Obtain the target uplink BWP for handover from the first active uplink BWP identification firstActiveUplinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message.
[0281] As an optional implementation manner, the BWP handover indication receiving module receives the DCI format indication sent by the network side, and the target BWP determining module determines the target BWP for handover according to the DCI format indication, including:
[0282] The BWP handover indication receiving module receives the DCI 1-1 format indication sent by the network side using PDCCH, and the target BWP determining module obtains the target downlink BWP for handover from the partial bandwidth indication Bandwidth part indicator in the DCI 1-1 format;
[0283] The BWP handover indication receiving module receives the DCI 0-1 format indication sent by the network side using PDCCH, and the target BWP determining module obtains the target uplink BWP for handover from the partial bandwidth indication Bandwidth part indicator in the DCI 0-1 format indication.
[0284] As an optional implementation manner, it further includes:
[0285] The BWP set determining module is configured to receive the downlink media access control resource unit MAC CE sent by the network side, and determine the available BWP set notified by the network side according to the MAC CE;
[0286] When the BWP handover module performs BWP handover based on the target BWP, it uses the available BWP set to assist in BWP handover.
[0287] As an optional implementation manner, when the interference avoidance module determines that the available BWP set is empty according to the notification of the network side, it negotiates with the base station or OMC for interference avoidance, including:
[0288] When it is determined that the available BWP set notified by the MAC CE is empty, select to negotiate with the serving base station or other serving devices for interference avoidance.
[0289] As an optional implementation manner, the MAC CE includes:
[0290] The serving cell identification ID applied by the MAC CE;
[0291] The uplink BWP identification in the available BWP set;
[0292] The downlink BWP identification in the available BWP set.
[0293] The above frequency point concession device based on the NR system provided by the embodiments of the present invention and the method for frequency point concession based on the NR system applied to the UE provided in the above Embodiment 1 of the present invention belong to the same inventive concept. Various embodiments of the method for frequency point concession based on the NR system applied to the UE provided in the above Embodiment 1 can be applied to the frequency point concession device based on the NR system in this embodiment for implementation, and will not be repeated here.
[0294] The above describes the frequency point concession device based on the NR system in the embodiments of the present application from the perspective of modular functional entities. The following describes the user equipment UE and network-side devices in the embodiments of the present application from the perspective of hardware processing.
[0295] Embodiment 4
[0296] Please refer to Figure 10 , the embodiments of the network-side device in the embodiments of the present application include:
[0297] A processor 1000, a memory 1001, a transceiver 1002, and a bus interface 1003.
[0298] The processor 1000 is responsible for managing the bus architecture and general processing. The memory 1001 can store the data used by the processor 1000 when performing operations. The transceiver 1002 is used to receive and send data under the control of the processor 1000.
[0299] The bus architecture may include any number of interconnected buses and bridges, specifically, various circuits represented by one or more processors represented by the processor 1000 and the memory represented by the memory 1001 are linked together. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art. Therefore, they will not be further described herein. The bus interface provides an interface. The processor 1000 is responsible for managing the bus architecture and general processing. The memory 1001 can store the data used by the processor 1000 when performing operations.
[0300] The processes disclosed in the embodiments of the present invention can be applied to or implemented by the processor 1000. In the implementation process, each step of the signal processing process can be completed by the integrated logic circuit of the hardware in the processor 1000 or the instructions in the form of software. The processor 1000 can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present invention can be directly embodied as being executed by the hardware processor, or completed by a combination of the hardware and software modules in the processor. The software module can be located in a mature storage medium in the art such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers, etc. This storage medium is located in the memory 1001, and the processor 1000 reads the information in the memory 1001 and combines its hardware to complete the steps of the signal processing process.
[0301] Specifically, the processor 1000 is configured to read the program in the memory 1001 and execute the steps of the method for frequency point concession based on the NR system applied to the network-side device provided in the above Embodiment 1.
[0302] Please refer to Figure 11 , the embodiments of the user equipment UE in the embodiments of the present application include:
[0303] A processor 1100, a memory 1101, a transceiver 1102, and a bus interface 1103.
[0304] The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1101 can store the data used by the processor 1100 when performing operations. The transceiver 1102 is used to receive and send data under the control of the processor 1100.
[0305] The bus architecture can include any number of interconnected buses and bridges, specifically various circuits represented by one or more processors represented by the processor 1100 and memories represented by the memory 1101 are linked together. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be further described herein. The bus interface provides an interface. The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1101 can store the data used by the processor 1100 when performing operations.
[0306] The processes disclosed in the embodiments of the present invention can be applied to or implemented by the processor 1100. During the implementation process, each step of the signal processing process can be completed by the integrated logic circuit of the hardware in the processor 1100 or the instructions in the form of software. The processor 1100 can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present invention can be directly embodied as being executed by the hardware processor, or executed by a combination of the hardware and software modules in the processor. The software module can be located in a mature storage medium in the art such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers, etc. This storage medium is located in the memory 1101, and the processor 1100 reads the information in the memory 1101 and combines its hardware to complete the steps of the signal processing process.
[0307] Specifically, the processor 1100 is configured to read the program in the memory 1101 and execute the steps of the method for frequency point concession based on the NR system applied to the UE provided in the above Embodiment 1.
[0308] The embodiments of the present invention further provide a computer-readable storage medium, including instructions, which when running on a computer, cause the computer to execute the method for frequency point concession based on the NR system provided in the above embodiments.
[0309] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described devices and modules can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.
[0310] In several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division, and there can be other division methods in actual implementation. For example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or modules can be in electrical, mechanical, or other forms.
[0311] The module described as a separation component may or may not be physically separated. The component shown as a module may or may not be a physical module, that is, it may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0312] In addition, in each embodiment of this application, each functional module can be integrated in a processing module, or each module can exist physically alone, or two or more modules can be integrated in one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium.
[0313] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product.
[0314] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are generated in whole or in part. The computer can be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from a website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wirelessly (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a server or data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (SSD)).
[0315] The technical solutions provided in this application have been introduced in detail above. Specific examples are used in this application to elaborate on the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application; at the same time, for those of ordinary skill in the art, based on the idea of this application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be construed as a limitation to this application.
[0316] Those skilled in the art will understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.
[0317] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.
Claims
1. A frequency point concession method based on the NR system, applied to network-side devices, Characterized in that, Comprising: Performing spectrum sensing within a sensing period, and when it is detected that the spectrum resources occupied by unauthorized users are applied for by authorized users, determining that there is a conflict between the spectrum resources of the detected unauthorized users and authorized users; Determining an available target BWP from the set of available partial bandwidth BWPs where no spectrum resource conflict has been detected; Sending a BWP switching indication carrying the target BWP to the unauthorized user to instruct the unauthorized user to perform BWP switching based on the target BWP.
2. The method according to claim 1, Characterized in that, When the set of available BWPs is empty, further comprising: Notifying the unauthorized user that the set of available BWPs is empty to instruct the unauthorized user to select to negotiate with the serving base station or other service devices for interference avoidance.
3. The method according to claim 1, Characterized in that, Sending an indication carrying the target BWP to the unauthorized user includes: Sending a BWP switching indication to the unauthorized user through an RRC reconfiguration message carrying the target BWP; or Sending a BWP switching indication to the unauthorized user through a downlink control information DCI format carrying the target BWP.
4. The method according to claim 3, Characterized in that, Sending a BWP switching indication to the unauthorized user through an RRC reconfiguration message carrying the target BWP includes: Indicating the target downlink BWP for BWP switching through the first active downlink BWP identifier firstActiveDownlinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message; Indicating the target uplink BWP for BWP switching through the first active uplink BWP identifier firstActiveUplinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message.
5. The method according to claim 4, Characterized in that, When the existence condition Cond SyncAndCellAddAndFreqCollision of the target BWP domain is satisfied, indicating the target downlink BWP for BWP switching through the firstActiveDownlinkBWP-Id in the ServingCellConfig of the RRC reconfiguration message; When the existence condition Cond SyncAndCellAddAndFreqCollision of the target BWP domain is satisfied, indicating the target uplink BWP for BWP switching through the firstActiveUplinkBWP-Id in the ServingCellConfig of the RRC reconfiguration message; The existence condition Cond SyncAndCellAddAndFreqCollision of the indicated target BWP domain includes detecting a spectrum resource conflict with an authorized user.
6. The method according to claim 3, wherein, sending a BWP switching indication to an unauthorized user by means of a DCI format carrying the target BWP includes: indicating the target downlink BWP for BWP switching by means of a bandwidth part indicator in a DCI 1-1 format sent via a physical downlink control channel PDCCH; indicating the target uplink BWP for BWP switching by means of a bandwidth part indicator in a DCI 0-1 format sent via the PDCCH.
7. The method according to any one of claims 1 to 6, wherein, further comprising: notifying the unauthorized user of the available BWP set via a downlink media access control resource element MAC CE.
8. The method according to claim 7, wherein, when the available BWP set is empty, notifying the unauthorized user that the available BWP set is empty includes: notifying the unauthorized user that the available BWP set is empty via a downlink MAC CE.
9. The method according to claim 7, wherein, the MAC CE includes: the service cell identifier ID applied by the MAC CE; the uplink BWP identifier in the available BWP set; the downlink BWP identifier in the available BWP set.
10. A frequency point concession method based on an NR system, applied to a user equipment UE, wherein, comprising: receiving a BWP switching indication sent by the network side, where the BWP switching indication is sent by the network side when performing spectrum sensing within a sensing period, detecting that the spectrum resources occupied by an unauthorized user are applied for by an authorized user, and determining that there is a conflict between the spectrum resources of the unauthorized user and the authorized user; determining the target BWP for switching according to the BWP switching indication; performing BWP switching based on the target BWP.
11. The method according to claim 10, wherein, further comprising: when determining that the available BWP set is empty according to the notification from the network side, selecting to negotiate with the serving base station or other service devices for interference avoidance.
12. The method according to claim 10, wherein, receiving a BWP switching indication sent by the network side and determining the target BWP for switching according to the BWP switching indication includes: receiving an RRC reconfiguration message sent by the network side and determining the target BWP for switching according to the RRC reconfiguration message; or receiving a downlink control information DCI format indication sent by the network side and determining the target BWP for switching according to the DCI format indication.
13. The method according to claim 12, wherein, determining the target BWP for switching according to the RRC reconfiguration message includes: obtaining the target downlink BWP for switching from the first active downlink BWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message; Obtain the target uplink BWP for handover from the first active uplink BWP identifier firstActiveUplinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message.
14. The method according to claim 12, wherein, Receiving a DCI format indication sent by the network side, and determining the target BWP for handover according to the DCI format indication, includes: Receiving a DCI 1-1 format indication sent by the network side using PDCCH, and obtaining the target downlink BWP for handover from the partial bandwidth indication Bandwidth part indicator in the DCI 1-1 format; Receiving a DCI 0-1 format indication sent by the network side using PDCCH, and obtaining the target uplink BWP for handover from the partial bandwidth indication Bandwidth part indicator in the DCI 0-1 format indication.
15. The method according to any one of claims 10 to 14, wherein, further includes: Receiving a downlink media access control resource unit MAC CE sent by the network side, and determining a set of available BWPs notified by the network side according to the MAC CE; When performing BWP handover based on the target BWP, use the set of available BWPs to assist in BWP handover.
16. The method according to claim 15, wherein, Determining that the set of available BWPs is empty according to the notification of the network side, and negotiating with the base station or OMC for interference avoidance, includes: When determining that the set of available BWPs notified by the MAC CE is empty, select to negotiate with the serving base station or other service devices for interference avoidance.
17. The method according to claim 15, wherein, The MAC CE includes: The serving cell identifier ID applied by the MAC CE; The uplink BWP identifier in the set of available BWPs; The downlink BWP identifier in the set of available BWPs.
18. A network side device, wherein, includes: A memory and a processor; wherein, the memory is used to store a computer program; The processor is used to read the program in the memory and execute: Performing spectrum sensing during a sensing period, and when it is detected that the spectrum resources occupied by unauthorized users are applied for by authorized users, determining that a spectrum resource conflict between unauthorized users and authorized users is detected; Determining an available target BWP from a set of available partial bandwidth BWPs where no spectrum resource conflict has been detected; Sending a BWP handover indication carrying the target BWP to the unauthorized user to instruct the unauthorized user to perform BWP handover based on the target BWP.
19. The network side device according to claim 18, wherein, When the set of available BWPs is empty, the processor is further used to: Notify the unauthorized user that the set of available BWPs is empty to instruct the unauthorized user to select to negotiate with the serving base station or other service devices for interference avoidance.
20. The network side device according to claim 18, wherein, The processor sends an indication carrying the target BWP to an unauthorized user, including: Sending a BWP switching indication to the unauthorized user through an RRC reconfiguration message carrying the target BWP; or Sending a BWP switching indication to the unauthorized user through a downlink control information DCI format carrying the target BWP.
21. The network-side device according to claim 20, wherein, When the processor sends a BWP switching indication to the unauthorized user through an RRC reconfiguration message carrying the target BWP, it includes: Indicating the target downlink BWP for BWP switching through the first active downlink BWP identifier firstActiveDownlinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message; Indicating the target uplink BWP for BWP switching through the first active uplink BWP identifier firstActiveUplinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message.
22. The network-side device according to claim 21, wherein, When the condition Cond SyncAndCellAddAndFreqCollision indicating the existence of the target BWP domain is satisfied, the target downlink BWP for BWP switching is indicated through the firstActiveDownlinkBWP-Id in the ServingCellConfig of the RRC reconfiguration message; When the condition Cond SyncAndCellAddAndFreqCollision indicating the existence of the target BWP domain is satisfied, the target uplink BWP for BWP switching is indicated through the firstActiveUplinkBWP-Id in the ServingCellConfig of the RRC reconfiguration message; The condition Cond SyncAndCellAddAndFreqCollision indicating the existence of the target BWP domain includes detecting a spectrum resource conflict with an authorized user.
23. The network-side device according to claim 20, wherein, When the processor sends a BWP switching indication to the unauthorized user through a DCI format carrying the target BWP, it includes: Indicating the target downlink BWP for BWP switching through the bandwidth part indicator in the DCI 1-1 format sent through the physical downlink control channel PDCCH; Indicating the target uplink BWP for BWP switching through the bandwidth part indicator in the DCI 0-1 format sent through the PDCCH.
24. The network-side device according to any one of claims 18 to 23, wherein, The processor is further configured to: Notify the unauthorized user of the available BWP set through the downlink media access control resource unit MAC CE.
25. The network-side device according to claim 24, wherein, when the available BWP set is empty, the processor notifies the unauthorized user that the available BWP set is empty, including: Notifying the unauthorized user that the available BWP set is empty through the downlink MAC CE.
26. The network-side device according to claim 24, wherein, the MAC CE includes: The service cell identification ID applied by the MAC CE; The uplink BWP identification in the available BWP set; The downlink BWP identification in the available BWP set.
27. A user equipment UE, wherein, includes: A memory and a processor; wherein, the memory is used to store computer programs; The processor is used to read the programs in the memory and execute: Receiving a BWP switching indication sent by the network side, where the BWP switching indication is sent by the network side during the sensing period for spectrum sensing, detecting that the spectrum resources occupied by the unauthorized user are applied for by the authorized user, and determining that there is a conflict between the spectrum resources of the unauthorized user and the authorized user; Determining the target BWP to be switched according to the BWP switching indication; Performing BWP switching based on the target BWP.
28. The UE according to claim 27, wherein, the processor is further used for: When determining that the available BWP set is empty according to the notification from the network side, select to negotiate with the serving base station or other serving devices for interference avoidance.
29. The UE according to claim 27, wherein, the processor receives the BWP switching indication sent by the network side, and determines the target BWP to be switched according to the BWP switching indication, including: Receiving an RRC reconfiguration message sent by the network side, and determining the target BWP to be switched according to the RRC reconfiguration message; or Receiving a downlink control information DCI format indication sent by the network side, and determining the target BWP to be switched according to the DCI format indication.
30. The UE according to claim 29, wherein, the processor determines the target BWP to be switched according to the RRC reconfiguration message, including: Obtaining the target downlink BWP to be switched from the first active downlink BWP identification firstActiveDownlinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message; Obtaining the target uplink BWP to be switched from the first active uplink BWP identification firstActiveUplinkBWP-Id in the serving cell configuration ServingCellConfig of the RRC reconfiguration message.
31. The UE according to claim 29, wherein, the processor receives the DCI format indication sent by the network side, and determines the target BWP to be switched according to the DCI format indication, including: Receive the DCI 1-1 format indication sent by the network side using PDCCH, and obtain the target downlink BWP for handover from the partial bandwidth indication Bandwidth part indicator in the DCI 1-1 format; Receive the DCI 0-1 format indication sent by the network side using PDCCH, and obtain the target uplink BWP for handover from the partial bandwidth indication Bandwidth part indicator in the DCI 0-1 format indication.
32. The UE according to any one of claims 27 to 31, wherein, the processor is further configured to: Receive the downlink media access control resource unit MAC CE sent by the network side, and determine the available BWP set notified by the network side according to the MAC CE; When performing BWP handover based on the target BWP, use the available BWP set to assist in BWP handover.
33. The UE according to claim 32, wherein, when the processor determines that the available BWP set notified by the network side is empty and negotiates with the base station or OMC for interference avoidance, it includes: When determining that the available BWP set notified by the MAC CE is empty, select to negotiate with the serving base station or other serving devices for interference avoidance.
34. The UE according to claim 32, wherein, the MAC CE includes: The service cell identifier ID applied by the MAC CE; The uplink BWP identifier in the available BWP set; The downlink BWP identifier in the available BWP set.
35. A frequency point concession device based on the NR system, wherein, it includes: A resource conflict determination module, configured to perform spectrum sensing during the sensing period, and when it detects that the spectrum resource occupied by the unauthorized user is applied for by the authorized user, determine that there is a spectrum resource conflict between the detected unauthorized user and the authorized user; A target BWP handover module, configured to determine the available target BWP from the available partial bandwidth BWP set where no spectrum resource conflict is detected; A BWP handover indication module, configured to send a BWP handover indication carrying the target BWP to the unauthorized user to instruct the unauthorized user to perform BWP handover based on the target BWP.
36. A frequency point concession device based on the NR system, wherein, it includes: A BWP handover indication receiving module, configured to receive the BWP handover indication sent by the network side, where the BWP handover indication is sent by the network side when it performs spectrum sensing during the sensing period, detects that the spectrum resource occupied by the unauthorized user is applied for by the authorized user, and determines that there is a spectrum resource conflict between the detected unauthorized user and the authorized user; A target BWP determination module, configured to determine the target BWP for handover according to the BWP handover indication; A BWP handover module, configured to perform BWP handover based on the target BWP.
37. A computer program medium, wherein, a computer program is stored thereon, and when the program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 9, or implements the steps of the method according to any one of claims 10 to 17.
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Contention window length determination method and device
CN110771250A