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WO2024082924A1 - 一种带宽部分处理方法及装置 - Google Patents

一种带宽部分处理方法及装置 Download PDF

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Publication number
WO2024082924A1
WO2024082924A1 PCT/CN2023/120900 CN2023120900W WO2024082924A1 WO 2024082924 A1 WO2024082924 A1 WO 2024082924A1 CN 2023120900 W CN2023120900 W CN 2023120900W WO 2024082924 A1 WO2024082924 A1 WO 2024082924A1
Authority
WO
WIPO (PCT)
Prior art keywords
bwp
standby
random access
terminal device
service
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/120900
Other languages
English (en)
French (fr)
Inventor
乔云飞
张佳胤
铁晓磊
汪宇
于天航
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2024082924A1 publication Critical patent/WO2024082924A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/60Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/06Reselecting a communication resource in the serving access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0457Variable allocation of band or rate
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA

Definitions

  • the present application relates to the field of communication technology, and in particular to a method and device for processing a portion of bandwidth.
  • a terminal device can be covered by multiple beams.
  • the terminal device can select a suitable candidate beam from the configured beam recovery candidate set and initiate a beam recovery request to the network device to request switching from the current service beam to the candidate beam to complete the beam recovery.
  • NTN non-terrestrial network
  • the embodiments of the present application provide a method and device for processing a portion of bandwidth, which is conducive to maintaining the continuity of communication.
  • an embodiment of the present application provides a bandwidth portion processing method, which can be applied to a terminal device (e.g., a device or chip of a terminal device).
  • the terminal device uses a first random access resource to send a bandwidth portion BWP switching request, the first random access resource is any one of one or more dedicated random access resources, the first random access resource is associated with a first standby BWP set, and the coverage enhancement level of the standby BWP in the first standby BWP set is greater than the coverage enhancement level of the service BWP of the terminal device.
  • the terminal device receives first indication information, the first indication information is used to indicate a first standby BWP, and the first standby BWP is a standby BWP in the first standby BWP set.
  • the terminal device uses any one of the one or more dedicated random access resources to send a BWP switching request to obtain a first backup BWP whose coverage enhancement level is greater than the coverage enhancement level of the service BWP, which is beneficial for the terminal device to switch from the service BWP to the first backup BWP when the service BWP fails or the beam recovery fails, thereby facilitating maintaining communication continuity.
  • the terminal device when the terminal device determines that the service BWP is invalid or the beam recovery fails, it uses the first random access resource to send a bandwidth part BWP switching request to request switching of the service BWP.
  • the terminal device When the service BWP of the terminal device fails, the terminal device cannot continue to use the service BWP for communication and needs to request to switch the service BWP.
  • the terminal device fails to perform beam recovery, the terminal device cannot continue to use the service BWP corresponding to the service beam for communication and needs to request to switch the service BWP.
  • the terminal device when the terminal device receives a physical downlink control channel PDCCH, it executes the use of a first random access resource to send a bandwidth part BWP switching request, and the PDCCH is used to trigger the terminal device to use a dedicated random access resource to send a BWP switching request. In this way, after being triggered by the PDCCH, the terminal device uses the first random access resource to send a bandwidth part BWP switching request to request the switching of the service BWP.
  • PDCCH physical downlink control channel
  • the terminal device may also receive configuration information, the configuration information including one or more spare BWP sets and dedicated random access resources associated with each of the one or more spare BWP sets, each spare BWP set including one or more spare BWPs.
  • the terminal device is configured with one or more spare BWP sets, so that when the service BWP fails or the beam recovery fails, the terminal device can select a spare BWP set from one or more spare BWP sets to initiate a BWP switching request.
  • the terminal device is also configured with dedicated random access resources associated with one or more spare BWP sets, which is conducive to the network device to determine the spare BWP set selected by the terminal device through the dedicated random access resources used by the terminal device to send the BWP switching request, and further facilitate the network device to determine the spare BWP that the terminal device can switch from the spare BWP set selected by the terminal device.
  • the terminal device uses the first random access resource to send the BWP switching request only when receiving the PDCCH, then the one or more dedicated random access resources are semi-statically configured. The one or more dedicated random access resources are activated when the network device sends the PDCCH to the terminal device.
  • the first indication information is carried in random access response information or downlink control information DCI.
  • the terminal device may also start a first timer when sending a BWP switching request using the first random access resource.
  • the terminal device performs a radio resource control RRC re-establishment. This method is conducive to the terminal device to resume communication by RRC re-establishment when the backup BWP is not obtained within a preset time.
  • the terminal device may also monitor the signal quality on the service BWP, and switch from the first standby BWP to the service BWP when the signal quality on the service BWP is better than a first preset value. This approach allows the terminal device to still use the service BWP for communication when the signal quality on the service BWP is restored, thereby improving the communication quality.
  • the terminal device determines that the beam recovery has failed.
  • the present application also provides a bandwidth portion processing method, which corresponds to the bandwidth portion processing method described in the first aspect, and is described from the network device side (applicable to the device or chip of the network device).
  • a bandwidth portion processing method which corresponds to the bandwidth portion processing method described in the first aspect, and is described from the network device side (applicable to the device or chip of the network device).
  • the network device detects a bandwidth portion BWP switching request on a first random access resource, based on the first random access resource, a first standby BWP set is determined from one or more standby BWP sets, the coverage enhancement level of the standby BWP in the first standby BWP set is greater than the coverage enhancement level of the service BWP of the terminal device, and the first random access resource is any one of the one or more dedicated random access resources.
  • the network device sends a first indication information, and the first indication information is used to indicate the first standby BWP, and the first standby BWP is a standby BWP in the
  • the network device determines a first standby BWP set from one or more standby BWP sets according to the first random access resource used by the terminal device to send a BWP switching request, and indicates the first standby BWP in the first standby BWP set to the terminal device, and the coverage level of the first standby BWP is greater than the coverage level of the serving BWP of the terminal device.
  • the terminal device it is beneficial for the terminal device to switch from the serving BWP to the first standby BWP when the serving BWP fails or the beam recovery fails, thereby facilitating the continuity of communication.
  • the network device when the signal quality on the service BWP of the terminal device is poor, the network device sends a physical downlink control channel PDCCH, which is used to trigger the terminal device to send a BWP switching request using a dedicated random access resource.
  • PDCCH physical downlink control channel
  • the network device may also send configuration information, the configuration information including one or more spare BWP sets and dedicated random access resources associated with each of the one or more spare BWP sets, each spare BWP set including one or more spare BWPs.
  • the network device configures one or more spare BWP sets for the terminal device, which is conducive to the terminal device selecting a spare BWP set from one or more spare BWP sets to send a BWP switching request when the service BWP fails or the beam recovery fails.
  • the network device also configures the terminal device with dedicated random access resources associated with each spare BWP set in the one or more spare BWP sets, so that the network device can determine the spare BWP set selected by the terminal device from the dedicated random access resources occupied by the BWP switching request, and then determine the spare BWP to be switched by the terminal device from the spare BWP set.
  • one or more dedicated random access resources are semi-statically configured. In this manner, one or more dedicated random access resources are activated when the network device sends a PDCCH.
  • the first indication information is carried in a random access response or downlink control information DCI.
  • the present application also provides a bandwidth portion processing method, which is described from the network device side (applicable to the device or chip of the network device).
  • the network device determines a second backup BWP.
  • the network device sends a second indication information, and the second indication information is used to indicate the second backup BWP, and the coverage enhancement level of the second backup BWP is greater than the coverage enhancement level of the service BWP.
  • the network device when the network device determines that the signal quality on the service BWP of the terminal device is poor, it indicates to the terminal device a second backup BWP whose coverage enhancement level is greater than the coverage enhancement level of the service BWP. This is beneficial for the terminal device to switch from the service BWP to the second backup BWP when the service BWP fails or beam recovery fails, thereby facilitating maintaining communication continuity.
  • the second indication information is carried in downlink control information DCI.
  • an embodiment of the present application further provides a bandwidth portion processing method, which can be applied to a terminal device (e.g., a device or chip of the terminal device).
  • the method includes: the terminal device receives second indication information, the second indication information is used to indicate a second backup bandwidth portion BWP, and the coverage enhancement level of the second backup BWP is greater than the coverage enhancement level of the service BWP of the terminal device.
  • the terminal device activates the second backup BWP.
  • the terminal device obtains a second standby BWP whose coverage enhancement level is greater than the coverage enhancement level of the service BWP, so that the terminal device activates the second standby BWP and communicates on the second standby BWP to maintain communication continuity.
  • the terminal device may also monitor the signal quality on the service BWP. If the signal quality on the service BWP is better than When the signal quality of the terminal device on the service BWP is restored, the service BWP is still used for communication, thereby improving the communication quality.
  • the second indication information is carried in downlink control information DCI.
  • the present application also provides a communication device.
  • the communication device has the function of implementing some or all of the functions of the terminal device described in the first aspect above, or implementing some or all of the functions of the network device described in the second aspect above, or implementing some or all of the functions of the network device described in the third aspect above, or implementing some or all of the functions of the terminal device described in the fourth aspect above.
  • the functions of the communication device may have the functions of some or all of the embodiments of the terminal device described in the first aspect of the present application, or may have the functions of implementing any one of the embodiments of the present application separately.
  • the functions may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a processing unit and a communication unit, and the processing unit is configured to support the communication device to perform the corresponding functions in the above method.
  • the communication unit is used to support communication between the communication device and other communication devices.
  • the communication device may also include a storage unit, which is used to couple with the processing unit and the communication unit, and store the necessary program instructions and data of the communication device.
  • the communication device includes: a processing unit and a communication unit; the processing unit is used to control the communication unit to send and receive data/signaling;
  • the communication unit is used to send a bandwidth part BWP switching request using a first random access resource
  • the first random access resource is any one of one or more dedicated random access resources; the first random access resource is associated with a first standby BWP set; the coverage enhancement level of the standby BWP in the first standby BWP set is greater than the coverage enhancement level of the service BWP of the terminal device;
  • the communication unit is further used to receive first indication information, where the first indication information is used to indicate a first standby BWP; the first standby BWP is a standby BWP in the first standby BWP set.
  • the communication device includes:
  • a processing unit configured to, when a bandwidth part BWP switching request is monitored on a first random access resource, determine a first standby BWP set from one or more standby BWP sets based on the first random access resource;
  • the coverage enhancement level of the standby BWP in the first standby BWP set is greater than the coverage enhancement level of the service BWP of the terminal device;
  • the first random access resource is any one of one or more dedicated random access resources;
  • the communication unit is used to send first indication information, where the first indication information is used to indicate a first standby BWP; the first standby BWP is a standby BWP in the first standby BWP set.
  • the communication device comprises:
  • a processing unit configured to determine a second standby BWP when the signal quality on the service bandwidth part BWP of the terminal device is less than a third preset value
  • the communication unit is used to send second indication information, where the second indication information is used to indicate a second standby BWP; the coverage enhancement level of the second standby BWP is greater than the coverage enhancement level of the serving BWP.
  • the communication device comprises:
  • a communication unit configured to receive second indication information, wherein the second indication information is used to indicate a second standby bandwidth part BWP; the coverage enhancement level of the second standby BWP is greater than the coverage enhancement level of the service BWP of the terminal device;
  • the processing unit is configured to activate the second standby BWP.
  • the communication unit may be a transceiver or a communication interface
  • the storage unit may be a memory
  • the processing unit may be a processor
  • the communication device includes: a processor and a transceiver; the processor is used to control the transceiver to send and receive data/signaling;
  • a transceiver configured to send a bandwidth part BWP switching request using a first random access resource
  • the first random access resource is any one of one or more dedicated random access resources; the first random access resource is associated with a first standby BWP set; the coverage enhancement level of the standby BWP in the first standby BWP set is greater than the coverage enhancement level of the service BWP of the terminal device;
  • the transceiver is further used to receive first indication information, where the first indication information is used to indicate a first standby BWP; the first standby BWP is a standby BWP in the first standby BWP set.
  • uplink communication device can refer to the relevant content of the first aspect mentioned above, and will not be described in detail here.
  • the communication device includes:
  • a processor configured to determine, when a bandwidth part BWP switching request is detected on a first random access resource, a first standby BWP set from one or more standby BWP sets based on the first random access resource;
  • the coverage enhancement level of the standby BWP in the first standby BWP set is greater than the coverage enhancement level of the service BWP of the terminal device;
  • the first random access resource is any one of one or more dedicated random access resources;
  • the transceiver is used to send first indication information, where the first indication information is used to indicate a first standby BWP; the first standby BWP is a standby BWP in the first standby BWP set.
  • uplink communication device can refer to the relevant content of the above-mentioned second aspect and will not be described in detail here.
  • the communication device comprises:
  • the processor is configured to determine a second standby BWP when the signal quality on the service bandwidth part BWP of the terminal device is less than a third preset value
  • the transceiver is used to send second indication information, where the second indication information is used to indicate a second standby BWP; the coverage enhancement level of the second standby BWP is greater than the coverage enhancement level of the serving BWP.
  • uplink communication device can refer to the relevant content of the third aspect mentioned above, and will not be described in detail here.
  • the communication device comprises:
  • a transceiver configured to receive second indication information, wherein the second indication information is used to indicate a second standby bandwidth part BWP; the coverage enhancement level of the second standby BWP is greater than the coverage enhancement level of the service BWP of the terminal device;
  • the processor is configured to activate the second standby BWP.
  • the communication device is a chip or a chip system.
  • the processing unit may also be embodied as a processing circuit or a logic circuit; the communication unit may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system.
  • the processor can be used to perform, for example, but not limited to, baseband related processing
  • the transceiver can be used to perform, for example, but not limited to, radio frequency transceiver.
  • the above-mentioned devices can be respectively arranged on chips independent of each other, or at least partially or completely arranged on the same chip.
  • the processor can be further divided into an analog baseband processor and a digital baseband processor.
  • the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be arranged on an independent chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip.
  • a digital baseband processor can be integrated with a variety of application processors (such as but not limited to a graphics processor, a multimedia processor, etc.) on the same chip.
  • application processors such as but not limited to a graphics processor, a multimedia processor, etc.
  • SoC system on a chip
  • the embodiment of the present application does not limit the implementation form of the above-mentioned devices.
  • the present application also provides a processor for executing the above-mentioned various methods.
  • the process of sending the above-mentioned information and receiving the above-mentioned information in the above-mentioned methods can be understood as the process of the processor outputting the above-mentioned information and the process of the processor receiving the above-mentioned information input.
  • the processor When outputting the above-mentioned information, the processor outputs the above-mentioned information to the transceiver so that it can be transmitted by the transceiver. After being output by the processor, the above-mentioned information may also need to be processed in other ways before it reaches the transceiver.
  • the transceiver receives the above-mentioned information and inputs it into the processor. Furthermore, after the transceiver receives the above-mentioned information, the above-mentioned information may need to be processed in other ways before it is input into the processor.
  • the processor may be a processor specifically used to execute these methods, or may be a processor that executes computer instructions in a memory to execute these methods, such as a general-purpose processor.
  • the memory may be a non-transitory memory, such as a read-only memory (ROM), which may be integrated with the processor on the same chip or may be separately arranged on different chips.
  • ROM read-only memory
  • the present application further provides a communication system, which includes one or more network devices and one or more terminal devices.
  • the system may also include other devices that interact with the network devices and the terminal devices.
  • the present application provides a computer-readable storage medium for storing instructions, which, when executed by a computer, implements the method described in any one of the first to fourth aspects above.
  • the present application further provides a computer program product comprising instructions, which, when executed on a computer, implements the method described in any one of the first to fourth aspects above.
  • the present application provides a chip system, the chip system comprising a processor and an interface, the interface being used to obtain a program or an instruction
  • the processor is used to call the program or instruction to implement or support the terminal device to implement the functions involved in the first aspect, or to implement or support the network device to implement the functions involved in the second aspect, or to implement or support the network device to implement the functions involved in the third aspect, or to implement or support the terminal device to implement the functions involved in the fourth aspect. For example, determine or process at least one of the data and information involved in the above method.
  • the chip system also includes a memory, which is used to store program instructions and data necessary for the terminal.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • the present application provides a communication device, comprising a processor for executing a computer program or executable instructions stored in a memory, so that when the computer program or executable instructions are executed, the device executes a method in any possible implementation of any one of the first to fourth aspects.
  • the processor and the memory are integrated together;
  • the memory is located outside the communication device.
  • the beneficial effects of the fifth to eleventh aspects can refer to the beneficial effects of the first to fourth aspects, and will not be repeated here.
  • FIG1 is a schematic diagram of a system structure of a communication system provided in an embodiment of the present application.
  • FIG2 is a schematic diagram of a distribution of a bandwidth portion provided in an embodiment of the present application.
  • FIG3 is a schematic diagram of another distribution of bandwidth parts provided in an embodiment of the present application.
  • FIG4 is a schematic diagram of distribution of another bandwidth portion provided in an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a terminal device communicating with a base station provided in an embodiment of the present application.
  • FIG6 is an interactive schematic diagram of a bandwidth portion processing method provided in an embodiment of the present application.
  • FIG. 7 is a schematic diagram of an interaction process between a terminal device and a network device provided in an embodiment of the present application.
  • FIG8 is an interactive schematic diagram of another bandwidth portion processing method provided in an embodiment of the present application.
  • FIG9 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • FIG. 10 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application.
  • first and second in the specification, claims and drawings of this application are used to distinguish different objects rather than to describe a specific order.
  • First and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of this embodiment, unless otherwise specified, “multiple” means two or more.
  • “plurality” refers to two or more than two.
  • “And/or” is used to describe the association relationship of associated objects, indicating that three relationships may exist.
  • a and/or B can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural.
  • the character “/” generally indicates that the previous and subsequent associated objects are in an “or” relationship.
  • “... when” and “if” both mean that corresponding processing will be carried out under certain objective circumstances, not a time limit, and does not require a judgment action when implementing, nor does it mean that there are other limitations.
  • words such as “exemplary” or “for example” are used to indicate examples, illustrations or descriptions. Any embodiment or design described as “exemplary” or “for example” in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as “exemplary” or “for example” is intended to present related concepts in a concrete way for easy understanding.
  • ground mobile terminal equipment accesses the network equipment deployed on the satellite through the new air interface.
  • the network equipment deployed on the satellite is connected to the core network on the ground through the ground station, and the network equipment deployed on the satellite is connected to the ground station through an interface (such as the NG interface).
  • the core network includes a user plane function (UPF) and a control plane, and the control plane includes an access and mobility management function (AMF) and a session management function (SMF).
  • the network equipment deployed on the satellite (such as the fifth generation mobile communication (5th Generation mobile communication, 5G) base stations) can be connected through an interface (such as an Xn interface) to complete signaling interaction between network devices.
  • 5G fifth generation mobile communication
  • 5G fifth generation mobile communication
  • the terminal devices involved in the embodiments of the present application may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem.
  • the terminal device may also be referred to as a terminal.
  • the terminal device may also refer to a user equipment (UE), an access terminal, a subscriber unit, a user agent, a cellular phone, a smart phone, a wireless data card, a personal digital assistant (PDA) computer, a tablet computer, a wireless modem, a handheld device (handset), a laptop computer, a machine type communication (MTC) terminal, a communication device carried on a high-altitude aircraft, a wearable device, a drone, a robot, a device-to-device communication (D2D) in Terminals, terminals in vehicle to everything (V2X), virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in
  • the network device involved in the embodiments of the present application is a device with wireless transceiver functions, which is used to communicate with terminal devices. It can be an evolved base station (evolved Node B, eNB or eNodeB) in LTE, or a base station in a 5G/sixth generation mobile communication (6G) network or a base station in a future evolved public land mobile network (PLMN), a broadband network service gateway (BNG), an aggregation switch or a non-third generation partnership project (3GPP) access device, etc.
  • eNB evolved Node B
  • 6G 5G/sixth generation mobile communication
  • PLMN public land mobile network
  • BNG broadband network service gateway
  • 3GPP non-third generation partnership project
  • the network devices in the embodiments of the present application may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, devices that realize base station functions in the future, access nodes in wireless fidelity (WiFi) systems, transmitting and receiving points (TRP), transmitting points (TP), mobile switching centers, and devices that perform base station functions in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, etc.
  • base stations such as: macro base stations, micro base stations (also called small stations), relay stations, access points, devices that realize base station functions in the future, access nodes in wireless fidelity (WiFi) systems, transmitting and receiving points (TRP), transmitting points (TP), mobile switching centers, and devices that perform base station functions in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, etc.
  • the core network can implement services such as user access control, mobility management, user security authentication, and billing.
  • the core network consists of multiple functional units, which can be divided into functional entities of the control plane and the data plane.
  • the access and mobility management unit AMF is responsible for user access management, security authentication, and mobility management.
  • the user plane function UPF is responsible for managing functions such as the transmission of user plane data and traffic statistics.
  • the ground station is responsible for forwarding signaling and business data between the satellite base station and the core network.
  • the Xn interface is the interface between 5G base stations and is mainly used for signaling interactions such as switching.
  • the NG interface is the interface between the 5G base station and the 5G core network, which mainly interacts with the core network's network attached storage (NAS) and other signaling, as well as user business data.
  • NAS network attached storage
  • the terminal device involved in the embodiment of the present application can access the satellite network through the air interface, and initiate calls, Internet access and other services to the satellite network.
  • the network device in the embodiment of the present application can be deployed on a satellite.
  • BWP Bandwidth part
  • the bandwidth part BWP is a continuous frequency domain resource.
  • the bandwidth part can also be called the carrier bandwidth part, that is, the carrier BWP.
  • the base station can configure up to 4 BWPs for a UE.
  • one BWP can be activated at the same time, and the UE sends and receives data on the activated BWP.
  • the bandwidth of the BWP is less than or equal to the bandwidth supported by the UE bandwidth capability (UE bandwidth capability).
  • the bandwidth supported by the UE bandwidth capability is less than or equal to the carrier bandwidth (bandwidth, BW).
  • the BWP is a bandwidth within the carrier.
  • different BWPs can be configured with different bandwidths.
  • the frequency domain resources of two BWPs can overlap. For example, as shown in FIG3 , the bandwidths of BWP1 and BWP2 are different, and the two overlap in frequency domain resources.
  • the base station when the base station configures a BWP for the UE, it may indicate a frame structure parameter (numerology) for each BWP.
  • the frame structure parameter may include a subcarrier spacing and/or a cyclic prefix (CP) length.
  • CP cyclic prefix
  • the base station configures a BWP1 for the UE.
  • the numerology indicated by BWP2 is numerology2.
  • CA Carrier aggregation
  • Carrier aggregation is the aggregation of two or more component carriers (CC) to support a larger transmission bandwidth.
  • the base station configures three carriers for the UE, including a primary carrier (PCC), and secondary carriers (SCC) 1 and SCC2.
  • PCC primary carrier
  • SCC secondary carriers
  • the cell corresponding to the PCC is called the primary cell (PCell)
  • the cell corresponding to the secondary carrier SCC is called the secondary cell (SCell).
  • RRC radio resource control
  • the base station can configure the Scell for the UE through an RRC message and activate the Scell when the Scell meets certain conditions.
  • the newly configured Scell is in an inactive state, and the base station needs to decide whether to activate the Scell based on service requirements.
  • the base station configures beam failure recovery (BFR) configuration information for the terminal device based on the capabilities reported by the terminal device.
  • the BFR configuration information includes information such as the beam detection set, beam recovery candidate set, and physical random access channel (PRACH) resources.
  • PRACH physical random access channel
  • the terminal device performs beam detection on the beams in the beam detection set. If the number of beam failures reported by the physical layer of the terminal device is greater than or equal to the beam failure instance maximum count during the timing of the beam failure detection timer, the beam failure is determined.
  • the terminal device selects a suitable beam from the beam recovery candidate set and initiates a random access request, i.e., sends a beam failure recovery request.
  • the random access request carries the selected beam information.
  • the random access request initiated by the terminal device and the selected beam are associated, so that the network device can determine the beam selected by the terminal device from the candidate beam set according to the received random access request. Then, the network device sends a beam failure recovery response for the beam to the terminal device.
  • the terminal device monitors the random access response on the selected beam, and if a random access response is detected, switches to the selected beam to resume communication on the selected beam.
  • NTN non-terrestrial network
  • FIG6 is an interactive schematic diagram of the bandwidth part processing method 100.
  • the bandwidth part processing method 100 is described from the perspective of the interaction between the terminal device and the network device.
  • the bandwidth part processing method 100 includes but is not limited to the following steps:
  • the terminal device sends a bandwidth part BWP switching request using a first random access resource.
  • the network device monitors the BWP switching request.
  • the first random access resource is any one of one or more dedicated random access resources, and the BWP switching request is used to request a switching service BWP.
  • the one or more dedicated random access resources are pre-configured by the network device to the terminal device, and are random access resources used by the terminal device to send a BWP switching request when the BWP fails or the beam recovery fails.
  • the terminal device can also receive configuration information, the configuration information includes one or more spare BWP sets, and dedicated random access resources associated with each spare BWP set in the one or more spare BWP sets, each spare BWP set includes one or more spare BWPs. Accordingly, the network device sends the configuration information.
  • the network device configures one or more spare BWP sets and one or more dedicated random access resources to the terminal device through configuration information, and each of the one or more spare BWP sets has an association relationship with each of the one or more dedicated random access resources.
  • the association relationship may also refer to a mapping relationship, that is, the network device establishes a mapping relationship between each of the one or more spare BWP sets and each of the one or more dedicated random access resources, and each spare BWP corresponds to one dedicated random access resource.
  • the terminal device Before initiating a BWP switching request, the terminal device selects a standby BWP set from one or more standby BWP sets, and then uses the dedicated random access resources corresponding to the selected standby BWP set to send the BWP switching request to request switching of the service BWP.
  • the first random access resource is associated with the first standby BWP set. Therefore, the terminal device uses the first random access resource to send a BWP switching request, which can indicate that the standby BWP set selected by the terminal device from one or more standby BWP sets is the first standby BWP set, which is beneficial for the network device to determine the standby BWP to be switched by the terminal device from the first standby BWP set.
  • the coverage enhancement level of the backup BWP in the first backup BWP set is greater than the coverage enhancement level of the service BWP of the terminal device, which is beneficial for the terminal device to switch from the service BWP to a backup BWP with a stronger coverage enhancement level than the service BWP when the service BWP fails or beam recovery fails, thereby facilitating maintaining communication continuity.
  • the coverage enhancement level of each standby BWP in one or more standby BWP sets is greater than the coverage enhancement level of the service BWP. This method is conducive to the terminal device switching to a standby BWP with a stronger coverage enhancement level than the service BWP when the service BWP fails or the beam recovery fails.
  • the coverage enhancement level of the backup BWP is greater than the coverage enhancement level of the service BWP, which can also be understood as the signal quality when the backup BWP is used for communication is better than the signal quality when the service BWP is used for communication.
  • This method can make the terminal device have poor signal quality on the service BWP, such as when the service BWP fails or the beam recovery fails, and switch to the backup BWP with a stronger coverage enhancement level than the service BWP to maintain communication continuity.
  • the network device configures the subcarrier spacing of the standby BWP to be smaller than the subcarrier spacing of the serving BWP, so that the coverage enhancement level of the standby BWP is greater than the subcarrier spacing of the serving BWP.
  • the network device configures the terminal device to transmit a signal and/or channel on the standby BWP with a repetition number greater than the repetition number of the signal and/or channel transmitted on the serving BWP, so that the coverage enhancement level of the standby BWP is greater than the coverage enhancement level of the serving BWP.
  • the network device configures the terminal device to transmit a physical random access channel (PRACH), a physical downlink shared channel (PDSCH), or a physical uplink shared channel (PUSCH) on the standby BWP with a repetition number greater than the repetition number of the channels transmitted on the serving BWP.
  • PRACH physical random access channel
  • PDSCH physical downlink shared channel
  • PUSCH physical uplink shared channel
  • the network device configures the physical downlink control channel (PDCCH) to have a higher aggregation level so that more physical resources can be aggregated together for use by the PDCCH, thereby reducing the decoding threshold of the terminal device, and further improving the coverage enhancement level of the backup BWP, so that the coverage enhancement level of the backup BWP is greater than the coverage enhancement level of the serving BWP.
  • PDCCH physical downlink control channel
  • the network device configures the length of the preamble sequence when the terminal device uses the backup BWP for random access to be greater than the length of the preamble sequence when the service BWP is used for random access, so that the coverage enhancement level of the backup BWP is greater than the coverage enhancement level of the service BWP.
  • the implementation method of configuring the network device to configure the coverage enhancement level of the standby BWP to be greater than the coverage enhancement level of the service BWP of the terminal device includes but is not limited to the above-mentioned implementation method.
  • the service BWP of the terminal device can also be understood as the BWP activated by the terminal device, that is, Active_BWP.
  • the performance of the backup BWPs in each backup BWP set may differ, for example, different backup BWPs have different coverage levels, different data throughputs, etc.
  • the performance of each backup BWP may be determined by the network device and the terminal device during the capability negotiation process, and then configured by the network device to the terminal.
  • the network device may configure BWP_switch_config for the terminal device in the radio resource control (RRC) reconfiguration, where the BWP_switch_config carries an additional prach-Configuration Index, which is used to indicate one or more dedicated random access resources.
  • RRC radio resource control
  • the terminal device when the terminal device determines that the service BWP fails, it executes the use of the first random access resource to send a BWP switching request.
  • the service BWP of the terminal device fails, it indicates that the service beam of the terminal device fails, and the terminal device cannot continue to use the service BWP corresponding to the service beam for communication, and there is a risk of communication interruption such as dropped calls and network disconnection. Therefore, the terminal device needs to send a BWP switching request to request the switching of the service BWP, which is conducive to restoring communication and maintaining communication continuity.
  • the service BWP when the signal quality of the terminal device on the service BWP is less than the second preset value, the service BWP is determined to be invalid.
  • the second preset value may be pre-configured by the network device or may be pre-determined by the terminal device. In other words, when the signal quality of the terminal device using the service BWP to transmit a signal and/or channel is poor, it indicates that the service BWP is invalid.
  • the terminal device when the terminal device determines that beam recovery fails, it executes the first random access resource to send a BWP switching request.
  • beam recovery failure means that when the service beam fails or the service BWP fails, the terminal device selects a candidate beam from the candidate beam set for beam recovery. If there is no candidate beam for the terminal device to select, it is determined that the beam recovery has failed.
  • the terminal device fails to perform beam recovery, the terminal device cannot continue to use the service BWP corresponding to the service beam for communication, so it is also necessary to request the switching of the service BWP.
  • the terminal device when the terminal device receives a physical downlink control channel PDCCH, it executes to send a BWP switching request using a first random access resource, and the PDCCH is used to trigger the terminal device to send a BWP switching request using a dedicated random access resource.
  • the network device determines that the signal quality on the service BWP of the terminal device is poor, it sends a PDCCH to trigger the terminal device to send a BWP switching request using a dedicated random access resource.
  • the network device can determine the signal quality on the service BWP of the terminal device based on uplink measurements or statistics fed back by other terminal devices in the service area.
  • the parameters measured by the network device can be various uplink signals and/or channels sent by the terminal device, such as preamble, sounding reference signal (SRS), demodulated reference signal (DMRS), channel quality indication (CQI), PUSCH, etc.
  • the BWP request information may be carried in the random access request. That is, the terminal device uses the first random access resource to initiate a random access request to the network device, and the random access request carries the BWP request information, so that the network device obtains the BWP switching request.
  • the network device When the network device detects a BWP switching request on the first random access resource, the network device determines a first standby BWP set from one or more standby BWP sets based on the first random access resource.
  • the network device When the network device detects a BWP switching request on the first random access resource, it determines that the terminal device needs to switch the service BWP, and thus determines a first standby BWP set from one or more standby BWP sets based on the first random access resource.
  • each standby BWP set is associated with a dedicated random access resource, that is, a mapping relationship is established between the two.
  • the network device determines the first standby BWP set selected when the terminal device sends a BWP switching request, and then activates the first standby BWP set selected by the terminal device, and determines the standby BWP to be switched by the terminal device in the activated standby BWP set.
  • the standby BWP sets configured by the network device for the terminal device include standby BWP set 1, standby BWP set 2, and standby BWP set 3.
  • Standby BWP set 1 is associated with dedicated random access resource a
  • standby BWP set 2 is associated with dedicated random access resource b
  • standby BWP set 3 is associated with dedicated random access resource c.
  • the network device determines that the standby BWP set selected by the terminal device is standby BWP set 2, that is, the first standby BWP set is standby BWP set 2, so that the network device activates standby BWP set 2 and determines the standby BWP to be switched by the terminal device in the standby BWP set.
  • the first random access resource when the terminal device uses the first random access resource to send a BWP switching request, the first random access resource directly indicates the first standby BWP set, so that the network device directly determines the standby BWP set selected by the terminal device as the first standby BWP set according to the first random access resource.
  • the network device sends first indication information, where the first indication information is used to indicate a first standby BWP, which is a standby BWP in a first standby BWP set.
  • the terminal device receives the first indication information.
  • the network device activates the first standby BWP set, it determines the standby BWP to be switched by the terminal device according to the load of each standby BWP in the first standby BWP set, and this standby BWP is called the first standby BWP.
  • the network device then indicates the first standby BWP to the terminal device through the first indication information, so that the terminal device obtains the first standby BWP to be switched.
  • the backup BWP set 2 includes the backup BWP1 and the backup BWP2.
  • the network device determines that the load of the backup BWP2 is less, and thus determines the backup BWP2 as the BWP to be switched by the terminal device, that is, determines the first backup BWP as the backup BWP2.
  • the first indication information is carried in the random access response information.
  • the network device sends the random access response information to the terminal device, the terminal device receives the random access response information, and obtains the first indication information from the random access response information, thereby obtaining the first standby BWP.
  • the first indication information is carried in downlink control information (DCI).
  • DCI downlink control information
  • the network device sends DCI to the terminal device, and the indication field of the DCI is used to indicate the first standby BWP.
  • the network device and the terminal device pre-associate the indication field in the DCI with different standby BWPs in different standby BWP sets, so that when the terminal device receives the DCI, it can determine the standby BWP indicated by the network device based on the indication of the indication field in the DCI.
  • This method is conducive to reducing the signaling overhead between the network device and the terminal device.
  • the terminal device may also activate the first standby BWP and communicate on the first standby BWP to restore communication and maintain continuity of communication.
  • a first timer is started, and the duration of the first timer is predefined.
  • the terminal device determines The BWP recovery fails, and a radio resource control (RRC) re-establishment is performed to try to restore the communication by means of RRC re-establishment.
  • RRC radio resource control
  • the terminal device may also monitor the signal quality on the service BWP, and switch from the first standby BWP to the service BWP when the signal quality on the service BWP is better than a first preset value. In other words, when the terminal device detects that the signal quality on the service BWP is restored, it still uses the service BWP for communication to improve the communication quality.
  • the signal quality on the service BWP is better than the first preset value, which means that when the terminal device transmits a signal and/or a channel on the service BWP, the signal quality of the transmitted signal and/or the channel is better than the first preset value.
  • the signal quality on the service BWP can be characterized by parameters such as signal strength, signal-to-noise ratio, and signal power.
  • the signal quality on the service BWP is characterized by any one of the parameters of signal strength, signal-to-noise ratio, and signal power.
  • the signal quality on the service BWP is better than the first preset value, which means that the signal strength, signal-to-noise ratio, or signal power on the service BWP is greater than the first preset value.
  • FIG7 is a schematic diagram of the interaction when the terminal device communicates with the network device.
  • the interaction process between the terminal device and the network device includes but is not limited to the following steps: S11, the network device sends a measurement configuration to the terminal device.
  • the measurement configuration includes a beam detection set, and the beam detection beam set includes one or more beams. Accordingly, the terminal device receives the measurement configuration.
  • S12 the terminal device performs beam detection on the beams in the detection beam set.
  • S13 when the number of beam failures reported by the terminal device within a preset time is greater than a preset value, beam recovery is performed.
  • S14 when the terminal device determines that there is no candidate beam for beam recovery, a beam recovery failure report is reported to the network device.
  • the terminal device uses a dedicated random access resource to send a random access request to the network device.
  • S15b The network device sends a PDCCH to the terminal device, and the PDCCH is used to trigger the terminal device to send a BWP switching request.
  • the terminal device uses a dedicated random access resource to send a random access request to the network device.
  • S16 the network device sends a DCI or a random access response to the terminal device, and the DCI or the random access response carries the backup BWP.
  • the coverage enhancement level of the backup BWP is greater than the coverage enhancement level of the serving BWP.
  • S17 the terminal device switches from the serving BWP to the backup BWP.
  • the terminal device communicates on the backup BWP and the communication connection can be restored.
  • the above S11 to S14 can be regarded as the stage in which the terminal device detects beam failure and performs beam recovery, and the above S15a, S15b, S16 and S17 can be regarded as the stage in which the terminal device triggers BWP switching and switches to the backup BWP.
  • the terminal device uses a dedicated random access resource to send a BWP switching request.
  • the network device determines the first standby BWP set selected by the terminal device based on the dedicated random access resource used by the terminal device.
  • the network device selects the first standby BWP to be switched by the terminal device from the first standby BWP set, and indicates the first standby BWP to the terminal device.
  • the coverage enhancement level of the first standby BWP is greater than the coverage enhancement level of the service BWP, which is beneficial for the terminal device to switch from the service BWP to the first standby BWP with a larger coverage enhancement level when the service BWP fails or the beam recovery fails, which is beneficial to maintain the continuity of communication and improve the robustness of the beam.
  • the embodiment of the present application also proposes a bandwidth part processing method 200, and FIG8 is an interactive schematic diagram of the bandwidth part processing method 200.
  • the bandwidth part processing method 200 is also described from the perspective of the interaction between the terminal device and the network device.
  • the bandwidth part processing method includes but is not limited to the following steps:
  • the network device determines a second backup BWP, and the coverage enhancement level of the second backup BWP is greater than the coverage enhancement level of the service BWP.
  • the third preset value is predefined by the network device.
  • the network device determines a second standby BWP with a coverage enhancement level greater than the coverage enhancement level of the service BWP, which is conducive to the terminal device switching from the service BWP to the second standby BWP when the signal quality on the service BWP is poor, so as to maintain the continuity of communication.
  • the network device may also pre-configure one or more spare BWP sets for the terminal device, each of the one or more spare BWP sets includes one or more spare BWPs, and the coverage enhancement level of each spare BWP is greater than the coverage enhancement level of the service BWP of the terminal device.
  • the network device determines the second spare BWP to be switched by the terminal device according to the load conditions of each spare BWP in the one or more spare BWP sets.
  • the implementation method of configuring the network device to configure the coverage enhancement level of the backup BWP to be greater than the coverage enhancement level of the service BWP can refer to the implementation method of the bandwidth partial BWP processing method 100 above, which will not be repeated here.
  • the network device sends second indication information, where the second indication information is used to indicate a second standby BWP.
  • the terminal device receives the second indication information.
  • the second indication information is carried in downlink control information DCI, and the network device indicates the second standby BWP through an indication field in the DCI.
  • the terminal device activates the second standby BWP.
  • the terminal equipment activates the standby BWP and communicates on the standby BWP to maintain the continuity of communication.
  • the terminal device may also monitor the signal quality on the service BWP, and switch from the first standby BWP to the service BWP when the signal quality on the service BWP is better than a first preset value. In other words, when the terminal device detects that the signal quality on the service BWP is restored, it still uses the service BWP for communication to improve the communication quality.
  • the network device when the signal quality on the service BWP of the terminal device is poor, the network device indicates to the terminal device a second standby BWP with a coverage enhancement level greater than the service BWP.
  • the terminal device activates the second standby BWP and communicates on the second standby BWP, which can avoid interruption of communication due to poor signal quality on the service BWP, thereby maintaining the continuity of communication and improving the robustness of the beam.
  • the terminal device and the network device may include a hardware structure and/or a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether a function of the above functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • an embodiment of the present application provides a communication device 900.
  • the communication device 900 may be a component of a terminal device (e.g., an integrated circuit, a chip, etc.), or a component of a network device (e.g., an integrated circuit, a chip, etc.).
  • the communication device 900 may also be other communication units for implementing the method in the method embodiment of the present application.
  • the communication device 900 may include: a communication unit 901 and a processing unit 902.
  • a storage unit 903 may also be included.
  • one or more units in FIG. 9 may be implemented by one or more processors, or by one or more processors and memories; or by one or more processors and transceivers; or by one or more processors, memories, and transceivers, which are not limited in the embodiments of the present application.
  • the processors, memories, and transceivers may be provided separately or integrated.
  • the communication device 900 has the functions of implementing the transmitting end or receiving end described in the embodiments of the present application.
  • the communication device 900 includes a module or unit or means corresponding to the transmitting end steps described in the embodiments of the present application, and the functions or units or means can be implemented by software, or by hardware, or by hardware executing corresponding software implementations, or by a combination of software and hardware.
  • the functions or units or means can be implemented by software, or by hardware, or by hardware executing corresponding software implementations, or by a combination of software and hardware.
  • a communication device 900 may include: a communication unit 901 and a processing unit 902, wherein the processing unit 902 is used to control the communication unit 901 to send and receive data/signaling;
  • a communication unit 901 is configured to send a bandwidth part BWP switching request using a first random access resource
  • the first random access resource is any one of one or more dedicated random access resources; the first random access resource is associated with a first standby BWP set; the coverage enhancement level of the standby BWP in the first standby BWP set is greater than the coverage enhancement level of the service BWP of the terminal device;
  • the communication unit 901 is further used to receive first indication information, where the first indication information is used to indicate a first standby BWP; the first standby BWP is a standby BWP in the first standby BWP set.
  • the processing unit 902 is used to: when it is determined that the service BWP is invalid or the beam recovery fails, execute the use of the first random access resource to send the bandwidth part BWP switching request; or, when the physical downlink control channel PDCCH is received through the communication unit 901, execute the use of the first random access resource to send the bandwidth part BWP switching request; the PDCCH is used to trigger the terminal device to use a dedicated random access resource to send the BWP switching request.
  • the communication unit 901 is also used to receive configuration information; the configuration information includes one or more backup BWP sets, and dedicated random access resources associated with each backup BWP set in the one or more backup BWP sets; each backup BWP set includes one or more backup BWPs.
  • the one or more dedicated random access resources are semi-statically configured.
  • the first indication information is carried in a random access response or downlink control information DCI.
  • the processing unit 902 is further used to: start a first timer when sending a BWP switching request using a first random access resource through the communication unit 901; when the first timer times out and the first indication information is not received, re-establish radio resource control RRC.
  • the processing unit 902 is further configured to: monitor the signal quality on the serving BWP; and switch from the first standby BWP to the serving BWP when the signal quality on the serving BWP is better than a first preset value.
  • the processing unit 902 determines that the service BWP is invalid when the signal quality on the service BWP is less than a second preset value.
  • the serving BWP fails and it is determined that there is no candidate beam for beam recovery, it is determined that the beam recovery has failed.
  • a communication device 900 may include: a processing unit 902 and a communication unit 901;
  • the processing unit 902 is configured to determine, when a bandwidth part BWP switching request is detected on a first random access resource, a first standby BWP set from one or more standby BWP sets based on the first random access resource;
  • the coverage enhancement level of the standby BWP in the first standby BWP set is greater than the coverage enhancement level of the service BWP of the terminal device;
  • the first random access resource is any one of one or more dedicated random access resources;
  • the communication unit 901 is configured to send first indication information, where the first indication information is used to indicate a first standby BWP; the first standby BWP is a standby BWP in the first standby BWP set.
  • the communication unit 901 is further used to send a physical downlink control channel PDCCH; the PDCCH is used to trigger the terminal device to use a dedicated random access resource to send the BWP switching request.
  • PDCCH physical downlink control channel
  • the communication unit 901 is also used to send configuration information; the configuration information includes the one or more standby BWP sets, and dedicated random access resources associated with each standby BWP set in the one or more standby BWP sets; each standby BWP set includes one or more standby BWPs.
  • the one or more dedicated random access resources are semi-statically configured.
  • the first indication information is carried in a random access response or downlink control information DCI.
  • a communication device 900 may include: a processing unit 902 and a communication unit 901;
  • the processing unit 902 is configured to determine a second standby BWP when the signal quality on the service bandwidth part BWP of the terminal device is less than a third preset value;
  • the communication unit 901 is further used to send second indication information, where the second indication information is used to indicate a second standby BWP, and the coverage enhancement level of the second standby BWP is greater than the coverage enhancement level of the serving BWP.
  • the second indication information is carried in downlink control information DCI.
  • a communication device 900 may include: a processing unit 902 and a communication unit 901;
  • a communication unit 901 is configured to receive second indication information, where the second indication information is used to indicate a second standby bandwidth part BWP, where the coverage enhancement level of the second standby BWP is greater than the coverage enhancement level of a service BWP of a terminal device;
  • the processing unit 902 is configured to enable the terminal device to activate a second standby BWP.
  • the processing unit 902 is further configured to: monitor the signal quality on the serving BWP, and switch from the second standby BWP to the serving BWP when the signal quality on the serving BWP is better than a first preset value.
  • the second indication information is carried in downlink control information DCI.
  • the embodiment of the present application also provides a communication device 1000, and FIG10 is a schematic diagram of the structure of the communication device 1000.
  • the communication device 1000 can be a terminal device, or a chip, a chip system, or a processor that supports the terminal device to implement the above method.
  • the communication device 1000 can also be a network device, or a chip, a chip system, or a processor that supports the network device to implement the above method.
  • the device can be used to implement the method described in the above method embodiment, and the details can be referred to the description in the above method embodiment.
  • the communication device 1000 may include one or more processors 1001.
  • the processor 1001 may be a general-purpose processor or a dedicated processor, etc.
  • it may be a baseband processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component or a central processing unit (CPU).
  • the baseband processor may be used to process the communication protocol and the communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal, a terminal chip, a distributed unit (DU) or a centralized unit (CU), etc.), execute a software program, and process the data of the software program.
  • DU distributed unit
  • CU centralized unit
  • the communication device 1000 may include one or more memories 1002, on which instructions 1004 may be stored, and the instructions may be executed on the processor 1001, so that the communication device 1000 performs the method described in the above method embodiment.
  • data may also be stored in the memory 1002.
  • the processor 1001 and the memory 1002 may be provided separately or integrated together.
  • the memory 1002 may include, but is not limited to, non-volatile memories such as a hard disk drive (HDD) or a solid-state drive (SSD), random access memory (RAM), erasable programmable ROM (EPROM), ROM or portable read-only memory (Compact Disc Read-Only Memory, CD-ROM), etc.
  • non-volatile memories such as a hard disk drive (HDD) or a solid-state drive (SSD), random access memory (RAM), erasable programmable ROM (EPROM), ROM or portable read-only memory (Compact Disc Read-Only Memory, CD-ROM), etc.
  • the communication device 1000 may further include a transceiver 1005 and an antenna 1006.
  • the transceiver 1005 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., for implementing a transceiver function.
  • the transceiver 1005 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.
  • the communication device 1000 is a terminal device: the transceiver 1005 is used to execute S101 and S103 in the above-mentioned bandwidth part processing method 100, and is used to execute S202 in the above-mentioned bandwidth part processing method 200; the processor 1001 is used to execute S203 in the above-mentioned bandwidth part processing method 200.
  • the communication device 1000 is a network device: the transceiver 1005 is used to execute S101 in the above-mentioned bandwidth part processing method 100, and is used to execute S202 in the above-mentioned bandwidth part processing method 200; the processor 1001 is used to execute S102 in the above-mentioned bandwidth part processing method 100, and is used to execute S201 in the above-mentioned bandwidth part processing method 200.
  • the processor 1001 may include a transceiver for implementing the receiving and sending functions.
  • the transceiver may be a transceiver circuit, or an interface, or an interface circuit.
  • the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
  • the above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
  • the processor 1001 may store an instruction 1003, and the instruction 1003 runs on the processor 1001, so that the communication device 1000 can execute the method described in the above method embodiment.
  • the instruction 1003 may be solidified in the processor 1001, in which case the processor 1001 may be implemented by hardware.
  • the communication device 1000 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments.
  • the processor and transceiver described in the embodiments of the present application can be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit (RFIC), a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.
  • IC integrated circuit
  • RFIC radio frequency integrated circuit
  • ASIC application specific integrated circuit
  • PCB printed circuit board
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS N-type metal oxide semiconductor
  • PMOS P-type metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the scope of the communication device described in the embodiments of the present application is not limited thereto, and the structure of the communication device may not be limited by FIG. 10.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be:
  • the IC set may also include a storage component for storing data and instructions;
  • ASIC such as a modem
  • the communication device and chip in the embodiment of the present application can also execute the implementation method described in the above-mentioned communication device 1000.
  • Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiment of the present application can be implemented by electronic hardware, computer software, or a combination of the two. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art can use various methods to implement the described functions for each specific application, but such implementation should not be understood as exceeding the scope of protection of the embodiments of the present application.
  • the present application also provides a computer-readable storage medium for storing computer software instructions, which, when executed by a communication device, implement the functions of any of the above method embodiments.
  • the present application also provides a computer program product for storing computer software instructions, which, when executed by a communication device, implement the functions of any of the above method embodiments.
  • the present application also provides a computer program, which, when executed on a computer, implements the functions of any of the above method embodiments.
  • the present application also provides a communication system, which includes one or more network devices and one or more terminal devices.
  • the system may also include other devices that interact with the network devices and terminal devices in the solution provided by the present application.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., an SSD), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a high-density digital video disc (DVD)
  • DVD high-density digital video disc
  • SSD semiconductor medium

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Abstract

本申请提供了一种带宽部分处理方法及装置。该方法可以应用于终端设备,该方法包括:采用第一随机接入资源发送带宽部分BWP切换请求,第一随机接入资源与第一备用BWP集合关联,第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;接收第一指示信息,第一指示信息用于指示第一备用BWP,第一备用BWP是第一备用BWP集合中的一个备用BWP。终端设备采用专用随机接入资源发送BWP切换请求,获得覆盖增强等级大于服务BWP的覆盖增强等级的第一备用BWP,从而有利于在服务BWP失效或者波束恢复失败时,从服务BWP切换至第一备用BWP,进而有利于保持通信的连续性。

Description

一种带宽部分处理方法及装置
本申请要求于2022年10月18日提交中国国家知识产权局、申请号为202211274820.0、申请名称为“一种带宽部分处理方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域,尤其涉及一种带宽部分处理方法及装置。
背景技术
蜂窝网络中,终端设备可被多个波束覆盖。终端设备在当前的服务波束失效时,可从被配置的波束恢复候选集中选择一个合适的候选波束,向网络设备发起波束恢复请求,以请求从当前的服务波束切换到该候选波束上,完成波束恢复。
然而,针对非地面网络(non-terrestrial network,NTN)场景,终端设备在大多数情况下,无法被多个波束覆盖。因此,终端设备当前的服务波束失效时,无法通过选择候选波束的方式进行波束恢复,会导致通信中断。
发明内容
本申请实施例提供了一种带宽部分处理方法及装置,有利于保持通信的连续性。
第一方面,本申请实施例提供一种带宽部分处理方法,可应用于终端设备(例如终端设备的设备或芯片上)。该方法中,终端设备采用第一随机接入资源发送带宽部分BWP切换请求,第一随机接入资源是一个或多个专用随机接入资源中的任意一个,第一随机接入资源与第一备用BWP集合关联,第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级。终端设备接收第一指示信息,第一指示信息用于指示第一备用BWP,第一备用BWP是第一备用BWP集合中的一个备用BWP。
本申请实施例中,终端设备采用一个或多个专用随机接入资源中的任意一个专用随机接入资源发送BWP切换请求,获得覆盖增强等级大于服务BWP的覆盖增强等级的第一备用BWP,从而有利于终端设备在服务BWP失效或者波束恢复失败时,从服务BWP切换至第一备用BWP,进而有利于保持通信的连续性。
一种可选的实施方式中,终端设备确定服务BWP失效或波束恢复失败时,执行采用第一随机接入资源发送带宽部分BWP切换请求,以请求进行服务BWP的切换。
终端设备的服务BWP失效时,终端设备无法继续采用服务BWP进行通信,需请求进行服务BWP的切换。终端设备进行波束恢复失败时,终端设备也无法继续采用服务波束对应的服务BWP进行通信,因此也需请求进行服务BWP的切换。
另一种可选的实施方式中,终端设备接收到物理下行控制信道PDCCH时,执行采用第一随机接入资源发送带宽部分BWP切换请求,该PDCCH用于触发终端设备采用专用随机接入资源发送BWP切换请求。该方式下,终端设备是在被PDCCH触发后,采用第一随机接入资源发送带宽部分BWP切换请求,以请求进行服务BWP的切换。
一种可选的实施方式中,终端设备还可接收配置信息,配置信息包括一个或多个备用BWP集合,以及与一个或多个备用BWP集合中每个备用BWP集合关联的专用随机接入资源,每个备用BWP集合包括一个或多个备用BWP。
可见,终端设备被配置一个或多个备用BWP集合,从而终端设备在服务BWP失效或波束恢复失败时,可从一个或多个备用BWP集合中选择一个备用BWP集合发起BWP切换请求。另外,终端设备还被配置与一个或多个备用BWP集合关联的专用随机接入资源,从而有利于网络设备通过终端设备发送BWP切换请求所采用的专用随机接入资源,确定终端设备所选择的备用BWP集合,进而有利于网络设备从终端设备所选择的备用BWP集合中确定终端设备可切换的备用BWP。
一种可选的实施方式中,若终端设备在接收到PDCCH时,才执行采用第一随机接入资源发送BWP切换请求,则上述一个或多个专用随机接入资源是半静态配置的。该一个或多个专用随机接入资源是在网络设备向终端设备发送PDCCH时激活的。
一种可选的实施方式中,第一指示信息携带于随机接入响应信息或下行控制信息DCI中。
一种可选的实施方式中,终端设备还可在采用第一随机接入资源发送BWP切换请求时,启动第一定时器。终端设备在第一定时器超时,且未接收到第一指示信息时,进行无线资源控制RRC重建立。该方式有利于终端设备在预设时间内未获得备用BWP时,采用RRC重建立的方式来恢复通信。
一种可选的实施方式中,终端设备还可监测服务BWP上的信号质量,在服务BWP上的信号质量优于第一预设值时,从第一备用BWP切换到服务BWP。该方式可使得终端设备在服务BWP上的信号质量恢复时,仍采用服务BWP进行通信,以提高通信质量。
一种可选的实施方式中,终端设备在服务BWP上的信号质量小于第二预设值时,确定服务BWP失效。
一种可选的实施方式中,终端设备在服务BWP失效,且确定无候选波束进行波束恢复时,确定波束恢复失败。
第二方面,本申请还提供一种带宽部分处理方法,该方面的带宽部分处理方法与第一方面所述的带宽部分处理方法相对应,该方面的带宽部分处理方法是从网络设备侧进行阐述的(可应用于网络设备的设备或芯片上)。该方法中,网络设备在第一随机接入资源上监测到带宽部分BWP切换请求时,基于第一随机接入资源,从一个或多个备用BWP集合中确定第一备用BWP集合,第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级,第一随机接入资源是一个或多个专用随机接入资源中的任意一个。网络设备发送第一指示信息,第一指示信息用于指示第一备用BWP,第一备用BWP是第一备用BWP集合中的一个备用BWP。
本申请实施例中,网络设备根据终端设备发送BWP切换请求所采用的第一随机接入资源,从一个或多个备用BWP集合中确定第一备用BWP集合,并向终端设备指示第一备用BWP集合中的第一备用BWP,第一备用BWP的覆盖等级大于终端设备的服务于BWP的覆盖等级。从而,有利于终端设备在服务BWP失效或波束恢复失败时,从服务BWP切换到第一备用BWP上,进而有利于保持通信的连续性。
一种可选的实施方式中,网络设备在终端设备的服务BWP上的信号质量较差时,发送物理下行控制信道PDCCH,该PDCCH用于触发终端设备采用专用随机接入资源发送BWP切换请求。该方式有利于终端设备的服务BWP上的信号质量较差时,采用专用随机接入资源向网络设备发送BWP切换请求,以请求进行服务BWP的切换,进而有利于保持通信的连续性。
一种可选的实施方式中,网络设备还可发送配置信息,配置信息包括一个或多个备用BWP集合,以及与一个或多个备用BWP集合中每个备用BWP集合关联的专用随机接入资源,每个备用BWP集合包括一个或多个备用BWP。
网络设备给终端设备配置一个或多个备用BWP集合,有利于终端设备在服务BWP失效或波束恢复失败时,从一个或多个备用BWP集合中选择一个备用BWP集合发送BWP切换请求。网络设备还给终端设备配置与一个或多个备用BWP集合中每个备用BWP集合关联的专用随机接入资源,可使得网络设备从BWP切换请求所占用的专用随机接入资源,确定终端设备选择的备用BWP集合,进而从该备用BWP集合中确定终端设备待切换的备用BWP。
一种可选的实施方式中,一个或多个专用随机接入资源是半静态配置的。该方式下,一个或多个专用随机接入资源是网络设备在发送PDCCH时激活的。
一种可选的实施方式中,第一指示信息携带于随机接入响应或下行控制信息DCI中。
第三方面,本申请还提供一种带宽部分处理方法,该方面的带宽部分处理方法是从网络设备侧进行阐述的(可应用于网络设备的设备或芯片上)。该方法中,网络设备在终端设备的服务带宽部分BWP上的信号质量小于第三预设值时,确定第二备用BWP。网络设备发送第二指示信息,第二指示信息用于指示第二备用BWP,第二备用BWP的覆盖增强等级大于服务BWP的覆盖增强等级。
本申请实施例中,网络设备确定终端设备的服务BWP上的信号质量较差时,向终端设备指示覆盖增强等级大于服务BWP的覆盖增强等级的第二备用BWP,从而有利于终端设备在服务BWP失效或者波束恢复失败时,从服务BWP切换到第二备用BWP上,进而有利于保持通信的连续性。
一种可选的实施方式中,第二指示信息携带于下行控制信息DCI中。
第四方面,本申请实施例还提供一种带宽部分处理方法,可应用于终端设备(例如终端设备的设备或芯片上)。该方法包括:终端设备接收第二指示信息,第二指示信息用于指示第二备用带宽部分BWP,第二备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级。终端设备激活第二备用BWP。
本申请实施例中,终端设备获得覆盖增强等级大于服务BWP的覆盖增强等级第二备用BWP,从而终端设备激活第二备用BWP,在第二备用BWP上进行通信,可保持通信的连续性。
一种可选的实施方式中,终端设备还可监测服务BWP上的信号质量,在服务BWP上的信号质量优于 第一预设值时,从第二备用BWP切换到服务BWP。该方式可使得终端设备在服务BWP上的信号质量恢复时,仍采用服务BWP进行通信,以提高通信质量。
一种可选的实施方式中,第二指示信息携带于下行控制信息DCI中。
第五方面,本申请还提供一种通信装置。该通信装置具有实现上述第一方面所述的终端设备的部分或全部功能,或者,实现上述第二方面所述的网络设备的部分或全部功能,或者,实现上述第三方面所述的网络设备的部分或全部功能,或者,实现上述第四方面所述的终端设备的部分或全部功能。比如,该通信装置的功能可具备本申请中第一方面所述的终端设备的部分或全部实施例中的功能,也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种可能的设计中,该通信装置的结构中可包括处理单元和通信单元,所述处理单元被配置为支持通信装置执行上述方法中相应的功能。所述通信单元用于支持该通信装置与其他通信装置之间的通信。所述通信装置还可以包括存储单元,所述存储单元用于与处理单元和通信单元耦合,其保存通信装置必要的程序指令和数据。
一种实施方式中,所述通信装置包括:处理单元和通信单元;处理单元用于控制通信单元进行数据/信令收发;
所述通信单元,用于采用第一随机接入资源发送带宽部分BWP切换请求;
所述第一随机接入资源是一个或多个专用随机接入资源中的任意一个;所述第一随机接入资源与第一备用BWP集合关联;所述第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;
所述通信单元,还用于接收第一指示信息,所述第一指示信息用于指示第一备用BWP;所述第一备用BWP是所述第一备用BWP集合中的一个备用BWP。
另外,该方面中,通信装置其他可选的实施方式可参见上述第一方面的相关内容,此处不再详述。
另一种实施方式中,所述通信装置包括:
处理单元,用于在第一随机接入资源上监测到带宽部分BWP切换请求时,基于所述第一随机接入资源,从一个或多个备用BWP集合中确定第一备用BWP集合;
所述第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;所述第一随机接入资源是一个或多个专用随机接入资源中的任意一个;
通信单元,用于发送第一指示信息,所述第一指示信息用于指示第一备用BWP;所述第一备用BWP是所述第一备用BWP集合中的一个备用BWP。
另外,该方面中,通信装置其他可选的实施方式可参见上述第二方面的相关内容,此处不再详述。
又一种实施方式中,所述通信装置包括:
处理单元,用于在终端设备的服务带宽部分BWP上的信号质量小于第三预设值时,确定第二备用BWP;
通信单元,用于发送第二指示信息,所述第二指示信息用于指示第二备用BWP;所述第二备用BWP的覆盖增强等级大于所述服务BWP的覆盖增强等级。
另外,该方面中,通信装置其他可选的实施方式可参见上述第三方面的相关内容,此处不再详述。
又一种实施方式中,所述通信装置包括:
通信单元,用于接收第二指示信息,所述第二指示信息用于指示第二备用带宽部分BWP;所述第二备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;
处理单元,用于激活所述第二备用BWP。
另外,该方面中,通信装置其他可选的实施方式可参见上述第四方面的相关内容,此处不再详述。
作为示例,通信单元可以为收发器或通信接口,存储单元可以为存储器,处理单元可以为处理器。
一种实施方式中,所述通信装置包括:处理器和收发器;处理器用于控制收发器进行数据/信令收发;
收发器,用于采用第一随机接入资源发送带宽部分BWP切换请求;
所述第一随机接入资源是一个或多个专用随机接入资源中的任意一个;所述第一随机接入资源与第一备用BWP集合关联;所述第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;
收发器,还用于接收第一指示信息,所述第一指示信息用于指示第一备用BWP;所述第一备用BWP是所述第一备用BWP集合中的一个备用BWP。
另外,该方面中,上行通信装置其他可选的实施方式可参见上述第一方面的相关内容,此处不再详述。
另一种实施方式中,所述通信装置包括:
处理器,用于在第一随机接入资源上监测到带宽部分BWP切换请求时,基于所述第一随机接入资源,从一个或多个备用BWP集合中确定第一备用BWP集合;
所述第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;所述第一随机接入资源是一个或多个专用随机接入资源中的任意一个;
收发器,用于发送第一指示信息,所述第一指示信息用于指示第一备用BWP;所述第一备用BWP是所述第一备用BWP集合中的一个备用BWP。
另外,该方面中,上行通信装置其他可选的实施方式可参见上述第二方面的相关内容,此处不再详述。
又一种实施方式中,所述通信装置包括:
处理器,用于在终端设备的服务带宽部分BWP上的信号质量小于第三预设值时,确定第二备用BWP;
收发器,用于发送第二指示信息,所述第二指示信息用于指示第二备用BWP;所述第二备用BWP的覆盖增强等级大于所述服务BWP的覆盖增强等级。
另外,该方面中,上行通信装置其他可选的实施方式可参见上述第三方面的相关内容,此处不再详述。
又一种实施方式中,所述通信装置包括:
收发器,用于接收第二指示信息,所述第二指示信息用于指示第二备用带宽部分BWP;所述第二备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;
处理器,用于激活所述第二备用BWP。
另外,该方面中,上行通信装置其他可选的实施方式可参见上述第四方面的相关内容,此处不再详述。
另一种实施方式中,该通信装置为芯片或芯片系统。所述处理单元也可以体现为处理电路或逻辑电路;所述通信单元可以是该芯片或芯片系统上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等。
在实现过程中,处理器可用于进行,例如但不限于,基带相关处理,收发器可用于进行,例如但不限于,射频收发。上述器件可以分别设置在彼此独立的芯片上,也可以至少部分的或者全部的设置在同一块芯片上。例如,处理器可以进一步划分为模拟基带处理器和数字基带处理器。其中,模拟基带处理器可以与收发器集成在同一块芯片上,数字基带处理器可以设置在独立的芯片上。随着集成电路技术的不断发展,可以在同一块芯片上集成的器件越来越多。例如,数字基带处理器可以与多种应用处理器(例如但不限于图形处理器,多媒体处理器等)集成在同一块芯片之上。这样的芯片可以称为系统芯片(system on a chip,SoC)。将各个器件独立设置在不同的芯片上,还是整合设置在一个或者多个芯片上,往往取决于产品设计的需要。本申请实施例对上述器件的实现形式不做限定。
第六方面,本申请还提供一种处理器,用于执行上述各种方法。在执行这些方法的过程中,上述方法中有关发送上述信息和接收上述信息的过程,可以理解为由处理器输出上述信息的过程,以及处理器接收输入的上述信息的过程。在输出上述信息时,处理器将该上述信息输出给收发器,以便由收发器进行发射。该上述信息在由处理器输出之后,还可能需要进行其他的处理,然后才到达收发器。类似的,处理器接收输入的上述信息时,收发器接收该上述信息,并将其输入处理器。更进一步的,在收发器收到该上述信息之后,该上述信息可能需要进行其他的处理,然后才输入处理器。
对于处理器所涉及的发送和接收等操作,如果没有特殊说明,或者,如果未与其在相关描述中的实际作用或者内在逻辑相抵触,则均可以更加一般性的理解为处理器输出和接收、输入等操作,而不是直接由射频电路和天线所进行的发送和接收操作。
在实现过程中,上述处理器可以是专门用于执行这些方法的处理器,也可以是执行存储器中的计算机指令来执行这些方法的处理器,例如通用处理器。上述存储器可以为非瞬时性(non-transitory)存储器,例如只读存储器(read only memory,ROM),其可以与处理器集成在同一块芯片上,也可以分别设置在不同的芯片上,本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
第七方面,本申请还提供了一种通信系统,该系统包括一个或多个网络设备,以及一个或多个终端设备。在另一种可能的设计中,该系统还可以包括与网络设备、终端设备进行交互的其他设备。
第八方面,本申请提供了一种计算机可读存储介质,用于储存指令,当所述指令被计算机运行时,实现上述第一方面至第四方面任一项所述的方法。
第九方面,本申请还提供了一种包括指令的计算机程序产品,当其在计算机上运行时,实现上述第一方面至第四方面任一项所述的方法。
第十方面,本申请提供了一种芯片系统,该芯片系统包括处理器和接口,所述接口用于获取程序或指 令,所述处理器用于调用所述程序或指令以实现或者支持终端设备实现第一方面所涉及的功能,或者实现或者支持网络设备实现第二方面所涉及的功能,或者实现或者支持网络设备实现第三方面所涉及的功能,或者实现或支持终端设备实现第四方面所涉及的功能。例如,确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中,所述芯片系统还包括存储器,所述存储器,用于保存终端必要的程序指令和数据。该芯片系统,可以由芯片构成,也可以包括芯片和其他分立器件。
第十一方面,本申请提供一种通信装置,包括处理器,用于执行存储器中存储的计算机程序或可执行指令,当计算机程序或可执行指令被执行时,使得该装置执行如第一方面至第四方面任一方面各个可能的实现中的方法。
在一种可能的实现中,处理器和存储器集成在一起;
在另一种可能的实现中,上述存储器位于该通信装置之外。
第五方面到第十一方面的有益效果可以参考第一方面到第四方面的有益效果,此处不再赘述。
附图说明
图1是本申请实施例提供的一种通信系统的系统结构示意图;
图2是本申请实施例提供的一种带宽部分的分布示意图;
图3是本申请实施例提供的另一种带宽部分的分布示意图;
图4是本申请实施例提供的又一种带宽部分的分布示意图;
图5是本申请实施例提供的一种终端设备与基站进行通信的示意图;
图6是本申请实施例提供的一种带宽部分处理方法的交互示意图;
图7是本申请实施例提供的一种终端设备与网络设备之间的交互流程示意图;
图8是本申请实施例提供的另一种带宽部分处理方法的交互示意图;
图9是本申请实施例提供的一种通信装置的结构示意图;
图10是本申请实施例提供的另一种通信装置的结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例中的技术方案进行清楚、完整的描述。
其中,本申请的说明书、权利要求书及附图中的术语“第一”和“第二”等是用于区别不同对象,而不是用于描述特定顺序。“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本实施例的描述中,除非另有说明,“多个”的含义是两个或两个以上。
此外,术语“包括”和“具有”以及它们任何变形,意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元,而是可选地还包括没有列出的步骤或单元,或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
应当理解,在本申请中,“多个”是指两个或两个以上。“和/或”,用于描述关联对象的关联关系,表示可以存在三种关系。例如,“A和/或B”可以表示:只存在A,只存在B以及同时存在A和B三种情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“…时”以及“若”均指在某种客观情况下会做出相应的处理,并非是限定时间,且也不要求实现时要有判断的动作,也不意味着存在其它限定。
在本申请实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念,便于理解。
一.通信系统。
为了更好的理解本申请实施例公开的带宽部分处理方法,对本申请实施例适用的通信系统进行描述。
本申请实施例可应用于卫星通信,系统架构如图1所示。如图1所示,地面移动终端设备通过新空口接入部署在卫星上的网络设备。部署在卫星上的网络设备通过地面站与地面的核心网相连,部署在卫星上的网络设备通过接口(比如NG接口)和地面站连接。核心网包括用户面功能(user plane function,UPF)和控制面,控制面包括接入和移动管理功能(access and mobility management function,AMF)和会话管理功能(session management function,SMF)。另外,部署在卫星上的网络设备(比如第五代移动通信(5th  generation mobile communication,5G)基站)之间可通过接口(比如Xn接口)连接,以完成网络设备与网络设备之间的信令交互。
本申请实施例所涉及到的终端设备可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备。终端设备也可称为终端。终端设备也可以指用户设备(user equipment,UE)、接入终端、用户单元(subscriber unit)、用户代理、蜂窝电话(cellular phone)、智能手机(smart phone)、无线数据卡、个人数字助理(personal digital assistant,PDA)电脑、平板型电脑、无线调制解调器(modem)、手持设备(handset)、膝上型电脑(laptop computer)、机器类型通信(machine type communication,MTC)终端、高空飞机上搭载的通信设备、可穿戴设备、无人机、机器人、设备到设备通信(device-to-device,D2D)中的终端、车到一切(vehicle to everything,V2X)中的终端、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端或者未来通信网络中的终端设备等,本申请不作限制。
本申请实施例涉及的网络设备是具有无线收发功能的设备,用于与终端设备进行通信,可以是LTE中的演进型基站(evolved Node B,eNB或eNodeB),或者是5G/第六代移动通信(6th generation mobile communication,6G)网络中的基站或者未来演进的公共陆地移动网络(public land mobile network,PLMN)中的基站、宽带网络业务网关(broadband network gateway,BNG)、汇聚交换机或者非第三代合作伙伴项目(3rd generation partnership project,3GPP)接入设备等。可选的,本申请实施例中的网络设备可以包括各种形式的基站,例如:宏基站、微基站(也称为小站)、中继站、接入点、未来实现基站功能的设备、无线保真(wireless fidelity,WiFi)系统中的接入节点、传输接收点(transmitting and receiving point,TRP)、发射点(transmitting point,TP)、移动交换中心以及设备到设备(device-to-device,D2D)、车辆外联(vehicle-to-everything,V2X)、机器到机器(machine-to-machine,M2M)通信中承担基站功能的设备等,本申请实施例对此不作具体限定。
核心网(core network,CN)可实现用户接入控制、移动性管理、用户安全认证、计费等业务。核心网由多个功能单元组成,可以分为控制面和数据面的功能实体。接入与移动管理单元AMF负责用户接入管理、安全认证、移动性管理。用户面功能UPF负责管理用户面数据的传输、流量统计等功能。
地面站负责转发卫星基站和核心网之间信令和业务数据。
Xn接口是5G基站和基站之间的接口,主要用于切换等信令交互。
NG接口是5G基站和5G核心网之间的接口,主要交互核心网的网络附属存储(network attached storage,NAS)等信令,以及用户的业务数据。
本申请实施例所涉及的终端设备可通过空口接入卫星网络,并向卫星网络发起呼叫、上网等业务。本申请实施例中的网络设备可部署在卫星上。
二.相关概念。
为了更好的理解本申请实施例公开的带宽部分处理方法,对本申请实施例涉及的相关概念进行简单的介绍。
1.带宽部分(band width part,BWP)。
带宽部分BWP是一段连续的频域资源,带宽部分也可以称为载波带宽部分,即载波BWP。新空口(new radio,NR)中,针对一个服务小区,基站可为一个UE最多配置4个BWP。针对一个UE,同时能激活一个BWP,且UE在激活的BWP上进行数据的收发。
如图2所示,BWP的带宽(BWP BW)小于或等于UE的带宽能力(UE bandwidth capability)支持的带宽。UE带宽能力支持的带宽小于或等于载波(carrier)带宽(bandwidth,BW)。也就是说,BWP是载波内的一段带宽。
基站为UE配置BWP时,不同的BWP可以配置不同带宽。另外,两个BWP的频域资源可以重叠。例如,如图3所示,BWP1和BWP2的带宽不相同,且两者在频域资源上存在重叠。
另外,基站为UE配置BWP时,可以针对每个BWP指示帧结构参数(numerology)。其中,帧结构参数可以包括子载波间隔和/或循环前缀(cyclic prefix,CP)长度。例如,如图4所示,基站为UE配置BWP1 时,指示BWP1的numerology为numerology1;基站为UE配置BWP2时,指示BWP2的numerology为numerology2。
2.载波聚合(carrier aggregation,CA)。
载波聚合CA是将2个或更多的载波单元(component carrier,CC)聚合在一起,以支持更大的传输带宽。示例性的,如图5所示,基站为UE配置了3个载波,该3个载波包括一个主载波(primary carrier,PCC),以及辅载波(secondary carrier,SCC)1和SCC2。其中,PCC对应的小区称为主小区(primary cell,PCell),辅载波SCC对应的小区称为辅小区(secondary cell,SCell)。UE采用PCC与PCell进行无线资源控制(radio resource control,RRC)连接。
基站可通过RRC消息为UE配置Scell,并在该Scell满足一定条件时对其进行激活。一般而言,刚配置的Scell都是非激活态,基站需根据业务需求,决定是否激活Scell。
本申请公开的实施例将围绕包括多个设备、组件、模块等的系统来呈现本申请的各个方面、实施例或特征。应当理解和明白的是,各个系统可以包括另外的设备、组件、模块等,并且/或者可以并不包括结合附图讨论的所有设备、组件、模块等。此外,还可以使用这些方案的组合。
蜂窝网络中,基站会基于终端设备上报的能力,为终端设备配置波束失败恢复(beam failure recovery,BFR)配置信息,BFR配置信息包括波束检测集、波束恢复候选集和物理随机接入信道(physical random access channel,PRACH)资源等信息。
终端设备对波束检测集中的波束进行波束检测。若在波束失败检测计时器(beam failure detection timer)计时期间,终端设备的物理层上报的波束失败个数大于或等于波束失败连续最大计数(beam failure instance maximum count)时,确定波束失败。
终端设备在波束失败后,在波束恢复候选集中选择一个合适的波束,发起随机接入请求,即发送波束失败恢复请求。该随机接入请求携带选择的波束信息。终端设备发起的随机接入请求和选择的波束具有关联关系,从而网络设备可根据接收到的随机接入请求确定终端设备从候选波束集中选择的波束。进而,网络设备向终端设备发送针对该波束的波束失败恢复响应。
终端设备在选择的波束上监测随机接入响应,若监测到随机接入响应,则向选择的波束进行切换,以在选择的波束上恢复通信。
针对非地面网络(non-terrestrial network,NTN)场景,终端设备在大多数情况下,无法被多个波束覆盖。因此,终端设备当前的服务波束失效时,无法通过选择候选波束的方式进行波束恢复,会导致掉网等通信中断。
三.带宽部分处理方法100。
本申请实施例提出一种带宽部分处理方法100,图6是该带宽部分处理方法100的交互示意图。该带宽部分处理方法100从终端设备和网络设备的交互角度进行阐述。该带宽部分处理方法100包括但不限于以下步骤:
S101.终端设备采用第一随机接入资源发送带宽部分BWP切换请求。相应的,网络设备监测BWP切换请求。
其中,第一随机接入资源是一个或多个专用随机接入资源中的任意一个,BWP切换请求用于请求切换服务BWP。
一个或多个专用随机接入资源是网络设备预先向终端设备配置的,且是用于终端设备在BWP失效或波束恢复失败时发送BWP切换请求所采用的随机接入资源。从而,终端设备还可接收配置信息,配置信息包括一个一个或多个备用BWP集合,以及与一个或多个备用BWP集合中每个备用BWP集合关联的专用随机接入资源,每个备用BWP集合包括一个或多个备用BWP。相应的,网络设备发送配置信息。
也就是说,网络设备通过配置信息向终端设备配置一个或多个备用BWP集合,以及一个或多个专用随机接入资源,且一个或多个备用BWP集合中的每个备用BWP集合与一个或多个专用随机接入资源中的每个专用随机接入资源具有关联关系。该关联关系也可指映射关系,即网络设备建立了一个或多个备用BWP集合中的每个备用BWP集合与一个或多个专用随机接入资源中的每个专用随机接入资源之间的映射关系,每个备用BWP对应一个专用随机接入资源。
终端设备发起BWP切换请求之前,从一个或多个备用BWP集合中选择一个备用BWP集合,从而采用选择的备用BWP集合对应的专用随机接入资源发送BWP切换请求,以请求切换服务BWP。
第一随机接入资源与第一备用BWP集合关联,因此终端设备采用第一随机接入资源发送BWP切换请求,可表明终端设备从一个或多个备用BWP集合中选择的备用BWP集合为第一备用BWP集合,从而有利于网络设备从第一备用BWP集合中确定终端设备待切换的备用BWP。
第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级,从而有利于终端设备在服务的BWP失效或波束恢复失败时,从服务的BWP切换至比服务BWP的覆盖增强等级更强的备用BWP上,进而有利于保持通信的连续性。
可理解的,针对一个或多个备用BWP集合中的每个备用BWP集合,该备用BWP集合中一个或多个备用BWP中的每个备用BWP的覆盖增强等级大于服务BWP的覆盖增强等级。该方式有利于终端设备在服务BWP失效或波束恢复失败时,切换至比服务BWP的覆盖增强等级更强的备用BWP上。
备用BWP的覆盖增强等级大于服务BWP的覆盖增强等级,也可理解为采用备用BWP进行通信时的信号质量,优于在采用服务BWP进行通信时的信号质量。该方式可使得终端设备在服务BWP上的信号质量较差,比如服务BWP失效或波束恢复失败时,可切换至比服务BWP的覆盖增强等级更强的备用BWP上,以保持通信的连续性。
一种可选的实施方式中,网络设备配置备用BWP的子载波间隔小于服务BWP的子载波间隔,以使得备用BWP的覆盖增强等级大于服务BWP的子载波间隔。
另一种可选的实施方式中,网络设备配置终端设备在备用BWP上传输信号和/或信道时的重复次数大于在服务BWP上传输信号和/或信道的重复次数,以使得备用BWP的覆盖增强等级大于服务BWP的覆盖增强等级。例如,网络设备配置终端设备在备用BWP上传输物理随机接入信道(physical random access channel,PRACH),或物理下行共享信道(physical downlink shared channel,PDSCH),或物理上行共享信道(physical uplink shared channel,PUSCH)时的重复次数,大于在服务BWP上传输这些信道时的重复次数。
又一种可选的实施方式中,网络设备配置物理下行控制信道(physical downlink control channel,PDCCH)具有更高的聚合等级,以使得更多的物理资源聚合在一起可供PDCCH使用,从而可使得终端设备的译码门限降低,进而可提高备用BWP的覆盖增强等级,使得备用BWP的覆盖增强等级大于服务BWP的覆盖增强等级。
又一种可选的实施方式中,网络设备配置终端设备采用备用BWP进行随机接入时的前导码序列的长度,大于采用服务BWP进行随机接入时的前导码序列的长度,以使得备用BWP的覆盖增强等级大于服务BWP的覆盖增强等级。
可理解的,网络设备配置备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级的实施方式包括但不限于上述实施方式。
可理解的,终端设备的服务BWP也可理解为终端设备激活的BWP,即Active_BWP。
可理解的,每个备用BWP集合中的备用BWP性能存在差异,比如不同备用BWP具有不同的覆盖等级、不同数据吞吐量等。每个备用BWP的性能可以是网络设备与终端设备在能力协商过程中确定的,然后网络设备配置给终端的。
一种可选的实施方式中,网络设备可通过在无线资源接入(radio resource control,RRC)配置(reconfiguration)中为终端设备配置BWP_switch_config,该BWP_switch_config中携带额外的prach-Configuration Index,该prach-Configuration Index用于指示一个或多个专用随机接入资源。
一种可选的实施方式中,终端设备确定服务BWP失效时,执行采用第一随机接入资源发送BWP切换请求。终端设备的服务BWP失效时,表明终端设备的服务波束失效,终端设备无法继续采用服务波束对应的服务BWP进行通信,存在掉话、断网等通信中断的风险,因此终端设备需发送BWP切换请求,以请求进行服务BWP的切换,有利于恢复通信,保持通信的连续性。
可理解的,终端设备在服务BWP上的信号质量小于第二预设值时,确定服务BWP失效。该第二预设值可以是网络设备预先配置的,也可以是终端设备预先自行确定的。也就是说,终端设备采用服务BWP传输信号和/或信道时的信号质量较差时,表明服务BWP失效。
另一种可选的实施方式中,终端设备确定波束恢复失败时,执行所述第一随机接入资源发送BWP切换请求。
其中,波束恢复失败是指,终端设备在服务波束失效,或者服务BWP失效时,从候选的波束集合中选择候选波束进行波束恢复,若无候选波束供终端设备选择,则确定波束恢复失败。
终端设备进行波束恢复失败时,终端设备也无法继续采用服务波束对应的服务BWP进行通信,因此也需请求进行服务BWP的切换。
又一种可选的实施方式中,终端设备接收到物理下行控制信道PDCCH时,执行采用第一随机接入资源发送BWP切换请求,该PDCCH用于触发终端设备采用专用随机接入资源发送BWP切换请求。相应的,网络设备在确定终端设备的服务BWP上的信号质量较差时,发送PDCCH,以触发终端设备采用专用随机接入资源发送BWP切换请求。
该方式下,网络设备可以基于上行测量,或者服务区域内其他终端设备反馈的统计量,确定终端设备的服务BWP上的信号质量。网络设备测量的参数可以是终端设备发送的各个上行信号和/或信道,比如前导码preamble、探测参考信号(sounding reference signal,SRS)、解调参考信号(demodulated reference signal,DMRS)、信道质量指示(channel quality indication,CQI)、PUSCH等。
可理解的,BWP请求信息可携带于随机接入请求中。也就是说,终端设备采用第一随机接入资源向网络设备发起随机接入请求,该随机接入请求携带BWP请求信息,以使得网络设备获得BWP切换请求。
S102.网络设备在第一随机接入资源上监测到BWP切换请求时,基于第一随机接入资源,从一个或多个备用BWP集合中确定第一备用BWP集合。
网络设备在第一随机接入资源上监测到BWP切换请求时,确定终端设备需进行服务BWP的切换,从而基于第一随机接入资源,从一个或多个备用BWP集合中确定第一备用BWP集合。
一种可选的实施方式中,网络设备给终端设备配置一个或多个备用BWP集合时,将每个备用BWP集合和一个专用随机接入资源进行了关联,即对两者建立了映射关系。从而,网络设备基于备用BWP集合与专用随机接入资源之间的关联关系和第一随机接入资源,确定终端设备发送BWP切换请求时所选择的第一备用BWP集合,进而激活终端设备选择的第一备用BWP集合,并在激活的备用BWP集合中确定终端设备需切换的备用BWP。
示例性的,网设备给终端设备配置的备用BWP集合包括备用BWP集合1、备用BWP集合2和备用BWP集合3。备用BWP集合1与专用随机接入资源a关联,备用BWP集合2与专用随机接入资源b关联,备用BWP集合3与专用随机接入资源c关联。若终端设备采用专用随机接入资源b发送BWP切换请求,网络设备在专用随机接入资源b上监测到BWP切换请求,则网络设备确定终端设备所选择的备用BWP集合为备用BWP集合2,即第一备用BWP集合为备用BWP集合2,从而网络设备激活备用BWP集合2,并在备用BWP集合中确定终端设备需切换的备用BWP。
另一种可选的实施方式中,终端设备采用第一随机接入资源发送BWP切换请求时,该第一随机接入资源直接指示第一备用BWP集合。从而网络设备直接根据第一随机接入资源确定终端设备选择的备用BWP集合为第一备用BWP集合。
S103.网络设备发送第一指示信息,第一指示信息用于指示第一备用BWP,第一备用BWP是第一备用BWP集合中的一个备用BWP。相应的,终端设备接收第一指示信息。
可理解的,网络设备激活第一备用BWP集合后,根据第一备用BWP集合中各备用BWP的负载情况,确定终端设备需切换的备用BWP,该备用BWP被称为第一备用BWP。网络设备再通过第一指示信息将该第一备用BWP指示给终端设备,以使得终端设备获得待切换的第一备用BWP。
例如,备用BWP集合2包括备用BWP1和备用BWP2,网络设备确定备用BWP2的负载较少,从而确定备用BWP2为终端设备需切换的BWP,即确定第一备用BWP为备用BWP2。
一种可选的实施方式中,第一指示信息携带于随机接入响应信息中。该方式下,网络设备向终端设备发送随机接入响应信息,终端设备接收随机接入响应信息,并从随机接入响应信息中获得第一指示信息,从而获得第一备用BWP。
另一种可选的实施方式中,第一指示信息携带于下行控制信息(downlink control information,DCI)。该方式下,网络设备向终端设备发送DCI,该DCI的指示域用于指示第一备用BWP。
可选的,网络设备和终端设备预先将DCI中的指示域与不同备用BWP集合中的不同备用BWP进行关联,从而终端设备接收到DCI时,可基于DCI中指示域的指示情况确定网络设备所指示的备用BWP。该方式有利于减少网络设备与终端设备之间的信令开销。
一种可选的实施方式中,终端设备还可激活第一备用BWP,并在第一备用BWP上进行通信,以恢复通信,保持通信的连续性。
一种可选的实施方式中,终端设备采用第一随机接入资源发送BWP切换请求时,启动第一定时器,第一定时器的时长是预先定义的。终端设备在第一定时器超时,且未接收到第一指示信息时,终端设备确定 BWP恢复失败,并进行无线资源控制(radio resource control,RRC)重建立,以尝试采用RRC重建立的方式恢复通信。
一种可选的实施方式中,终端设备还可监测服务BWP上的信号质量,在服务BWP上的信号质量优于第一预设值时,从第一备用BWP切换到服务BWP。也就是说,终端设备监测到服务BWP上的信号质量恢复时,仍采用服务BWP上进行通信,以提高通信质量。
可理解的,服务BWP上的信号质量优于第一预设值,是指终端设备在服务BWP上传输信号和/或信道时,传输信号和/或信道的信号质量优于第一预设值。另外,服务BWP上的信号质量可用信号强度、信噪比、信号功率等参数表征。服务BWP上的信号质量用信号强度、信噪比、信号功率中的任意一个参数表征时。服务BWP上的信号质量优于第一预设值,是指服务BWP上的信号强度,或信噪比,或信号功率大于第一预设值。
示例性的,图7为终端设备与网络设备进行通信时的交互示意图。如图7所示,终端设备与网络设备之间的交互流程包括但不限于以下步骤:S11,网络设备向终端设备发送测量配置。测量配置包括波束检测集合,波束检测束集合包括一个或多个波束。相应的,终端设备接收测量配置。S12,终端设备对检测波束集合中的波束进行波束检测。S13,终端设备在预设时间内上报的波束失败个数大于预设值时,进行波束恢复。S14,终端设备确定无候选波束进行波束恢复时,向网络设备上报波束恢复失败报告。S15a,终端设备在波束恢复失败时,采用专用随机接入资源向网络设备发送随机接入请求。S15b.网络设备向终端设备发送PDCCH,该PDCCH用于触发终端设备发送BWP切换请求。终端设备在接收到PDCCH时,采用专用随机接入资源向网络设备发送随机接入请求。S16,网络设备向终端设备发送DCI或随机接入响应,该DCI或随机接入响应携带备用BWP。备用BWP的覆盖增强等级大于服务BWP的覆盖增强等级。S17,终端设备从服务BWP切换至备用BWP。从而终端设备在备用BWP上进行通信,可恢复通信连接。
上述S11至S14可看作是终端设备检测到波束失败,进行波束恢复的阶段,上述S15a、S15b、S16和S17可以看作是终端设备触发BWP切换,以及切换到备用BWP的阶段。
本申请实施例中,终端设备采用专用随机接入资源发送BWP切换请求。网络设备基于终端设备采用的专用随机接入资源,确定终端设备选择的第一备用BWP集合。网络设备从第一备用BWP集合中选择终端设备待切换的第一备用BWP,并将该第一备用BWP指示给终端设备。第一备用BWP的覆盖增强等级大于服务BWP的覆盖增强等级,从而有利于终端设备在服务BWP失效或者波束恢复失败时,从服务BWP切换至覆盖增强等级更大的第一备用BWP,进而有利于保持通信的连续性,提高波束的鲁棒性。
四.带宽部分处理方法200。
本申请实施例还提出一种带宽部分处理方法200,图8是该带宽部分处理方法200的交互示意图。该带宽部分处理方法200也是从终端设备和网络设备的交互角度进行阐述。该带宽部分处理方法包括但不限于以下步骤:
S201.网络设备在终端设备的服务带宽部分BWP上的信号质量小于第三预设值时,确定第二备用BWP,第二备用BWP的覆盖增强等级大于服务BWP的覆盖增强等级。
其中,第三预设值是网络设备预先定义的。
终端设备的服务BWP上的信号质量小于第三预设值时,表明服务BWP上的信号质量较差,终端设备存在掉网的可能性,从而终端设备需进行服务BWP的切换。进而网络设备确定覆盖增强等级大于服务BWP的覆盖增强等级的第二备用BWP,进而有利于终端设备在服务BWP上的信号质量较差时,从服务BWP切换到第二备用BWP,以保持通信的连续性。
一种可选的实施方式中,网络设备还可预先为终端设备配置一个或多个备用BWP集合,一个或多个备用BWP集合中每个备用BWP集合包括一个或多个备用BWP,每个备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级。从而网络设备在终端设备的服务BWP上的信号质量较差时,根据一个或多个备用BWP集合中的各备用BWP的负载情况,确定终端设备待切换的第二备用BWP。
网络设备配置备用BWP的覆盖增强等级大于服务BWP的覆盖增强等级的实施方式可参见上述带宽部分BWP处理方法100中的实施方式,不再赘述。
S202.网络设备发送第二指示信息,第二指示信息用于指示第二备用BWP。相应的,终端设备接收第二指示信息。
一种可选的实施方式中,第二指示信息携带于下行控制信息DCI中,网络设备通过DCI中的指示域指示第二备用BWP。
S203.终端设备激活第二备用BWP。
终端设备激活备用BWP,并在备用BWP上进行通信,以保持通信的连续性。
一种可选的实施方式中,终端设备还可监测服务BWP上的信号质量,在服务BWP上的信号质量优于第一预设值时,从第一备用BWP切换到服务BWP。也就是说,终端设备监测到服务BWP上的信号质量恢复时,仍采用服务BWP上进行通信,以提高通信质量。
本申请实施例中,网络设备在终端设备的服务BWP上的信号质量较差时,为终端设备指示覆盖增强等级大于服务BWP的第二备用BWP。从而终端设备激活第二备用BWP,并在第二备用BWP上进行通信,可避免因服务BWP上的信号质量较差而中断通信,因此可保持通信的连续性,提高波束的鲁棒性。
五.通信装置。
针对前文描述的技术方案,下文进一步描述相应的装置实现方案。
为了实现上述本申请实施例提供的方法中的各功能,终端设备和网络设备可以包括硬件结构和/或软件模块,以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行,取决于技术方案的特定应用和设计约束条件。
如图9所示,本申请实施例提供了一种通信装置900。该通信装置900可以是终端设备的部件(例如,集成电路,芯片等等),也可以是网络设备的部件(例如,集成电路,芯片等等)。该通信装置900也可以是其他通信单元,用于实现本申请方法实施例中的方法。该通信装置900可以包括:通信单元901和处理单元902。可选的,还可以包括存储单元903。
在一种可能的设计中,如图9中的一个或者多个单元可能由一个或者多个处理器来实现,或者由一个或者多个处理器和存储器来实现;或者由一个或多个处理器和收发器实现;或者由一个或者多个处理器、存储器和收发器实现,本申请实施例对此不作限定。所述处理器、存储器、收发器可以单独设置,也可以集成。
所述通信装置900具备实现本申请实施例描述的发送端或接收端的功能。比如,所述通信装置900包括发送端执行本申请实施例描述的发送端涉及步骤所对应的模块或单元或手段(means),所述功能或单元或手段(means)可以通过软件实现,或者通过硬件实现,也可以通过硬件执行相应的软件实现,还可以通过软件和硬件结合的方式实现。详细可进一步参考前述对应方法实施例中的相应描述。
在一种可能的设计中,一种通信装置900可包括:通信单元901和处理单元902,所述处理单元902用于控制所述通信单元901进行数据/信令收发;
通信单元901,用于采用第一随机接入资源发送带宽部分BWP切换请求;
所述第一随机接入资源是一个或多个专用随机接入资源中的任意一个;所述第一随机接入资源与第一备用BWP集合关联;所述第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;
通信单元901,还用于接收第一指示信息,所述第一指示信息用于指示第一备用BWP;所述第一备用BWP是所述第一备用BWP集合中的一个备用BWP。
一种可选的实现方式中,处理单元902用于:确定所述服务BWP失效或波束恢复失败时,执行所述采用第一随机接入资源发送带宽部分BWP切换请求;或者,通过通信单元901接收到物理下行控制信道PDCCH时,执行所述采用第一随机接入资源发送带宽部分BWP切换请求;所述PDCCH用于触发所述终端设备采用专用随机接入资源发送所述BWP切换请求。
一种可选的实现方式中,通信单元901,还用于接收配置信息;所述配置信息包括一个或多个备用BWP集合,以及与所述一个或多个备用BWP集合中每个备用BWP集合关联的专用随机接入资源;所述每个备用BWP集合包括一个或多个备用BWP。
一种可选的实现方式中,所述一个或多个专用随机接入资源是半静态配置的。
一种可选的实现方式中,所述第一指示信息携带于随机接入响应或下行控制信息DCI中。
一种可选的实现方式中,处理单元902还用于:通过通信单元901采用第一随机接入资源发送BWP切换请求时,启动第一定时器;所述第一定时器超时,且未接收到所述第一指示信息时,进行无线资源控制RRC重建立。
一种可选的实现方式中,处理单元902还用于:监测所述服务BWP上的信号质量;在所述服务BWP上的信号质量优于第一预设值时,从所述第一备用BWP切换到所述服务BWP。
一种可选的实现方式中,处理单元902在所述服务BWP上的信号质量小于第二预设值时,确定所述服务BWP失效。
一种可选的实现方式中,在所述服务BWP失效,且确定无候选波束进行波束恢复时,确定所述波束恢复失败。
本申请实施例和上述所示方法实施例基于同一构思,其带来的技术效果也相同,具体原理请参照上述所示实施例的描述,不再赘述。
在另一种可能的设计中,一种通信装置900可包括:处理单元902和通信单元901;
处理单元902,用于在第一随机接入资源上监测到带宽部分BWP切换请求时,基于所述第一随机接入资源,从一个或多个备用BWP集合中确定第一备用BWP集合;
所述第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;所述第一随机接入资源是一个或多个专用随机接入资源中的任意一个;
通信单元901,用于发送第一指示信息,所述第一指示信息用于指示第一备用BWP;所述第一备用BWP是所述第一备用BWP集合中的一个备用BWP。
一种可选的实现方式中,通信单元901,还用于发送物理下行控制信道PDCCH;所述PDCCH用于触发所述终端设备采用专用随机接入资源发送所述BWP切换请求。
一种可选的实现方式中,通信单元901,还用于发送配置信息;所述配置信息包括所述一个或多个备用BWP集合,以及与所述一个或多个备用BWP集合中每个备用BWP集合关联的专用随机接入资源;所述每个备用BWP集合包括一个或多个备用BWP。
一种可选的实现方式中,所述一个或多个专用随机接入资源是半静态配置的。
一种可选的实现方式中,所述第一指示信息携带于随机接入响应或下行控制信息DCI中。
本申请实施例和上述所示方法实施例基于同一构思,其带来的技术效果也相同,具体原理请参照上述所示实施例的描述,不再赘述。
在又一种可能的设计中,一种通信装置900可包括:处理单元902和通信单元901;
处理单元902,用于在终端设备的服务带宽部分BWP上的信号质量小于第三预设值时,确定第二备用BWP;
通信单元901,还用于发送第二指示信息,第二指示信息用于指示第二备用BWP,第二备用BWP的覆盖增强等级大于服务BWP的覆盖增强等级。
一种可选的实施方式中,第二指示信息携带于下行控制信息DCI中。
本申请实施例和上述所示方法实施例基于同一构思,其带来的技术效果也相同,具体原理请参照上述所示实施例的描述,不再赘述。
在又一种可能的设计中,一种通信装置900可包括:处理单元902和通信单元901;
通信单元901,用于接收第二指示信息,第二指示信息用于指示第二备用带宽部分BWP,第二备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;
处理单元902,用于终端设备激活第二备用BWP。
一种可选的实现方式中,处理单元902还用于:监测服务BWP上的信号质量,在服务BWP上的信号质量优于第一预设值时,从第二备用BWP切换到服务BWP。
一种可选的实施方式中,第二指示信息携带于下行控制信息DCI中。
本申请实施例和上述所示方法实施例基于同一构思,其带来的技术效果也相同,具体原理请参照上述所示实施例的描述,不再赘述。
本申请实施例还提供一种通信装置1000,图10为通信装置1000的结构示意图。所述通信装置1000可以是终端设备,也可以是支持终端设备实现上述方法的芯片、芯片系统、或处理器等。所述通信装置1000还可以是网络设备,也可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法,具体可以参见上述方法实施例中的说明。
所述通信装置1000可以包括一个或多个处理器1001。所述处理器1001可以是通用处理器或者专用处理器等。例如可以是基带处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或中央处理器(central processing unit,CPU)。基带处理器可以用于对通信协议以及通信数据进行处理,中央处理器可以用于对通信装置(如,基站、基带芯片,终端、终端芯片,分布单元(distributed unit,DU)或集中单元(centralized unit,CU)等)进行控制,执行软件程序,处理软件程序的数据。
可选的,所述通信装置1000中可以包括一个或多个存储器1002,其上可以存有指令1004,所述指令可在所述处理器1001上被运行,使得所述通信装置1000执行上述方法实施例中描述的方法。可选的,所述存储器1002中还可以存储有数据。所述处理器1001和存储器1002可以单独设置,也可以集成在一起。
存储器1002可包括但不限于硬盘(hard disk drive,HDD)或固态硬盘(solid-state drive,SSD)等非易失性存储器,随机存储记忆体(Random Access Memory,RAM)、可擦除可编程只读存储器(Erasable Programmable ROM,EPROM)、ROM或便携式只读存储器(Compact Disc Read-Only Memory,CD-ROM)等等。
可选的,所述通信装置1000还可以包括收发器1005、天线1006。所述收发器1005可以称为收发单元、收发机、或收发电路等,用于实现收发功能。收发器1005可以包括接收器和发送器,接收器可以称为接收机或接收电路等,用于实现接收功能;发送器可以称为发送机或发送电路等,用于实现发送功能。
所述通信装置1000为终端设备:收发器1005用于执行上述带宽部分处理方法100中的S101、S103,用于执行上述带宽部分处理方法200中的S202;处理器1001用于执行上述带宽部分处理方法200中的S203。
所述通信装置1000为网络设备:收发器1005用于执行上述带宽部分处理方法100中的S101,用于执行上述带宽部分处理方法200中的S202;处理器1001用于执行上述带宽部分处理方法100中的S102,用于执行上述带宽部分处理方法200中的S201。
另一种可能的设计中,处理器1001中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路,或者是接口,或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的,也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写,或者,上述收发电路、接口或接口电路可以用于信号的传输或传递。
又一种可能的设计中,可选的,处理器1001可以存有指令1003,指令1003在处理器1001上运行,可使得所述通信装置1000执行上述方法实施例中描述的方法。指令1003可能固化在处理器1001中,该种情况下,处理器1001可能由硬件实现。
又一种可能的设计中,通信装置1000可以包括电路,所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本申请实施例中描述的处理器和收发器可实现在集成电路(integrated circuit,IC)、模拟IC、射频集成电路(radio frequency integrated circuit,RFIC)、混合信号IC、专用集成电路(application specific integrated circuit,ASIC)、印刷电路板(printed circuit board,PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造,例如互补金属氧化物半导体(complementary metal oxide semiconductor,CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor,NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor,PMOS)、双极结型晶体管(Bipolar Junction Transistor,BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
本申请实施例中描述的通信装置的范围并不限于此,而且通信装置的结构可以不受图10的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是:
(1)独立的集成电路IC,或芯片,或,芯片系统或子系统;
(2)具有一个或多个IC的集合,可选的,该IC集合也可以包括用于存储数据,指令的存储部件;
(3)ASIC,例如调制解调器(modulator);
(4)可嵌入在其他设备内的模块;
本申请实施例中通信装置、芯片还可执行上述通信装置1000所述的实现方式。本领域技术人员还可以了解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件,或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用,可以使用各种方法实现所述的功能,但这种实现不应被理解为超出本申请实施例保护的范围。
本申请实施例和上述带宽部分处理方法100和带宽部分处理方法200所示方法实施例基于同一构思,其带来的技术效果也相同,具体原理请参照上述带宽部分处理方法100和带宽部分处理方法200所示实施例的描述,不再赘述。
本申请还提供了一种计算机可读存储介质,用于储存计算机软件指令,当所述指令被通信装置执行时,实现上述任一方法实施例的功能。
本申请还提供了一种计算机程序产品,用于储存计算机软件指令,当所述指令被通信装置执行时,实现上述任一方法实施例的功能。
本申请还提供了一种计算机程序,当其在计算机上运行时,实现上述任一方法实施例的功能。
本申请还提供了一种通信系统,该系统包括一个或多个网络设备,以及一个或多个终端设备。在另一种可能的设计中,该系统还可以包括本申请提供的方案中与网络设备、终端设备进行交互的其他设备。
上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,高密度数字视频光盘(digital video disc,DVD))、或者半导体介质(例如,SSD)等。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。

Claims (20)

  1. 一种带宽部分处理方法,其特征在于,所述方法包括:
    采用第一随机接入资源发送带宽部分BWP切换请求;
    所述第一随机接入资源是一个或多个专用随机接入资源中的任意一个;所述第一随机接入资源与第一备用BWP集合关联;所述第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;
    接收第一指示信息,所述第一指示信息用于指示第一备用BWP;所述第一备用BWP是所述第一备用BWP集合中的一个备用BWP。
  2. 根据权利要求1所述的方法,其特征在于,
    确定所述服务BWP失效或波束恢复失败时,执行所述采用第一随机接入资源发送带宽部分BWP切换请求;或者,
    接收到物理下行控制信道PDCCH时,执行所述采用第一随机接入资源发送带宽部分BWP切换请求;
    所述PDCCH用于触发所述终端设备采用专用随机接入资源发送所述BWP切换请求。
  3. 根据权利要求1或2所述的方法,其特征在于,所述方法还包括:
    接收配置信息;所述配置信息包括一个或多个备用BWP集合,以及与所述一个或多个备用BWP集合中每个备用BWP集合关联的专用随机接入资源;
    所述每个备用BWP集合包括一个或多个备用BWP。
  4. 根据权利要求1至3任一项所述的方法,其特征在于,
    所述一个或多个专用随机接入资源是半静态配置的。
  5. 根据权利要求1至4任一项所述的方法,其特征在于,
    所述第一指示信息携带于随机接入响应或下行控制信息DCI中。
  6. 根据权利要求1至5任一项所述的方法,其特征在于,所述方法还包括:
    所述采用第一随机接入资源发送BWP切换请求时,启动第一定时器;
    所述第一定时器超时,且未接收到所述第一指示信息时,进行无线资源控制RRC重建立。
  7. 根据权利要求1至6任一项所述的方法,其特征在于,所述方法还包括:
    监测所述服务BWP上的信号质量;
    在所述服务BWP上的信号质量优于第一预设值时,从所述第一备用BWP切换到所述服务BWP。
  8. 根据权利要求2所述的方法,其特征在于,所述方法还包括:
    在所述服务BWP上的信号质量小于第二预设值时,确定所述服务BWP失效。
  9. 根据权利要求2或8所述的方法,其特征在于,所述方法还包括:
    在所述服务BWP失效,且确定无候选波束进行波束恢复时,确定所述波束恢复失败。
  10. 一种带宽部分处理方法,其特征在于,所述方法包括:
    在第一随机接入资源上监测到带宽部分BWP切换请求时,基于所述第一随机接入资源,从一个或多个备用BWP集合中确定第一备用BWP集合;
    所述第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;所述第一随机接入资源是一个或多个专用随机接入资源中的任意一个;
    发送第一指示信息,所述第一指示信息用于指示第一备用BWP;所述第一备用BWP是所述第一备用BWP集合中的一个备用BWP。
  11. 根据权利要求10所述的方法,其特征在于,所述方法还包括:
    发送物理下行控制信道PDCCH;所述PDCCH用于触发所述终端设备采用专用随机接入资源发送所述BWP切换请求。
  12. 根据权利要求10或11所述的方法,其特征在于,所述方法还包括:
    发送配置信息;所述配置信息包括所述一个或多个备用BWP集合,以及与所述一个或多个备用BWP集合中每个备用BWP集合关联的专用随机接入资源;
    所述每个备用BWP集合包括一个或多个备用BWP。
  13. 根据权利要求10至12任一项所述的方法,其特征在于,
    所述一个或多个专用随机接入资源是半静态配置的。
  14. 根据权利要求10至13任一项所述的方法,其特征在于,
    所述第一指示信息携带于随机接入响应或下行控制信息DCI中。
  15. 一种通信装置,其特征在于,所述装置包括通信单元和处理单元,所述处理单元用于控制所述通信单元进行数据/信令收发;
    所述通信单元,用于采用第一随机接入资源发送带宽部分BWP切换请求;
    所述第一随机接入资源是一个或多个专用随机接入资源中的任意一个;所述第一随机接入资源与第一备用BWP集合关联;所述第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;
    所述通信单元,还用于接收第一指示信息,所述第一指示信息用于指示第一备用BWP;所述第一备用BWP是所述第一备用BWP集合中的一个备用BWP。
  16. 一种通信装置,其特征在于,所述装置包括:
    处理单元,用于在第一随机接入资源上监测到带宽部分BWP切换请求时,基于所述第一随机接入资源,从一个或多个备用BWP集合中确定第一备用BWP集合;
    所述第一备用BWP集合中备用BWP的覆盖增强等级大于终端设备的服务BWP的覆盖增强等级;所述第一随机接入资源是一个或多个专用随机接入资源中的任意一个;
    通信单元,用于发送第一指示信息,所述第一指示信息用于指示第一备用BWP;所述第一备用BWP是所述第一备用BWP集合中的一个备用BWP。
  17. 一种通信装置,其特征在于,包括处理器和收发器,所述收发器用于与其它通信装置进行通信;所述处理器用于运行程序,以使得所述通信装置实现权利要求1至9任一项所述的方法,或者实现权利要求10至14任一项所述的方法。
  18. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质用于存储有指令,当其在计算机上运行时,使得权利要求1至9任一项所述的方法被执行,或者使得权利要求10至14任一项所述的方法被执行。
  19. 一种包含指令的计算机程序产品,其特征在于,当其在计算机上运行时,使得权利要求1至9任一项所述的方法被执行,或者使得权利要求10至14任一项所述的方法被执行。
  20. 一种通信系统,其特征在于,包括第一通信装置和第二通信装置,其中所述第一通信装置用于执行权利要求1至9任一项所述的方法,所述第二通信装置用于执行权利要求10至14任一项所述的方法。
PCT/CN2023/120900 2022-10-18 2023-09-23 一种带宽部分处理方法及装置 Ceased WO2024082924A1 (zh)

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